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HomeMy WebLinkAbout4103_Guilford_WhiteStreet_PhaseII_CAER_FID1748073_20221130%X%I GOLDER REPORT GROUNDWATER CORRECTIVE ACTION EVALUATION REPORT White Street Landfill - Phase ll, Permit No. 41-03 Submitted to: City of Greensboro Field Operations Department 401 Patton Avenue Greensboro, North Carolina 27406 Submitted by: Golder Associates NC, Inc. �R USE ONLY: J I ❑Paper Report ❑Electronic Data - Email CD (data loaded: Yes / No DoclEvent #: NC DENR I IEnvironmental Monitoring Division of Waste Management - Solid Waste Reporting Form Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and examination by any person upon request (NC General Statute 132-6). Instructions: Prepare one form for each individually monitored unit. Please type or print legibly. Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, off -site source, pre-existing condition, etc.). Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits. Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the facility (NCAC 1313 .1629 (4)(a)(i). Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste Section. 1646 Mail Service Center, Raleigh, NC 27699-1646. Solid Waste Monitoring Data Submittal Information Name of entity submitting data (laboratory, consultant, facility owner): Golder Associates NC, Inc. on behalf of the City of Greensboro Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address: Name: Rachel P. Kirkman, PG Phone: 336-852-4903 E-mail: rkirkman@golder.com NC Landfill Rule: Actual sampling dates (e.g., Facility name: Facility Address: Facility Permit # (.0500 or .1600) October 20-24. 2006) White Street Landfill - Phase II 2503 White Street 41-03 .1600 Greensboro, NC 27405 Environmental Status: (Check all that apply) Initial/Background Monitoring Detection Monitoring R Assessment Monitoring 0 Corrective Action of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells Groundwater monitoring data from private water supply wells 21 Leachale monitoring data 1-1Surface water monitoring data Methane gas monitoring data Corrective action data (specify) Corrective Action Evaluation Report Other(specify) Notification attached? e No. No groundwater or surface water standards were exceeded. Yes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water monitoring points, dates, analytical values, NC 2L groundwater standard, NC 2B surface water standard or NC Solid Waste GWPS and preliminary analysis of the cause and significance of any concentration. Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes the methane monitoring points, dates, sample values and explosive methane gas limits. Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment. Rachel P. Kirkman, PG Director, Geologist 336-852-4903 Facility Representative Name (Print) Title (Area Code) Telephone Number 11-29-22 Affix NC Licensed/ Professional Geologist Seal o/r`( c,�.[�..y.� ��55!an6rrsY}•, 5ignature Date :J' Ott f° r4;isk w._ Golder Associates NC, Inc., 5B Oak Branch Drive, Greensboro, NC 27407 Facility Representative Address C-2862 NC PE Firm License Number (if applicable effective May 1, 2009) Revised 612009 November 29, 2022 Distribution List GL19131339 Task 300 Richard Lovett, PG, Environmental Compliance Support Manager, Field Operations, City of Greensboro, 401 Patton Avenue, Greensboro, NC 27406. 336-373-4188. Richard.Lovett@greensboro-nc.gov Michael Szychowicz, Landfill Compliance Supervisor, Field Operations, City of Greensboro, 2503 White Street, Greensboro, NC 27405. 336-254-8096. Michael.Szychowicz@greensboro-nc.gov Jackie Drummond, Department of Environmental Quality, Division of Waste Management - Solid Waste Section, 2090 US Highway 70, Swannanoa, NC 28778. 828-296-4706. laclynne.drummond(LDncdenr.gov W,I) GOLDER November 29, 2022 GL19131339 Task 300 Executive Summary This Corrective Action Evaluation Report (CAER) was prepared for the North Carolina Department of Environmental Quality (NC DEQ) by Golder Associates NC, Inc., a member of WSP (Golder), for the White Street Landfill's Phase II waste unit, which operates under North Carolina (NC) Solid Waste Permit No. 41-03. This CAER was prepared in accordance with the guidance document "Guidelines for Corrective Action Evaluation Reports" issued by the NC DEQ (i.e., NC DENR) and evaluates the effectiveness of the monitored natural attenuation (MNA) and phytoremediation remedial strategy implemented between April 2017 to April 2022. Based on our evaluation of the five-year MNA evaluation period from (April 2017 through April 2022), the contaminant plume has not reached the facility boundary to the west and north of the Phase II Landfill. Based on analytical data from groundwater samples collected from the sentry wells, NC 2L Standard exceedances of the constituents of concern (COCs) continue to be contained within the facility property boundary. Overall, the Environmental Protection Agency BIOCHLOR modeling shows that the groundwater plumes have reached stabilization and trend graphs show overall declining COC trends. Based on the available information, no downgradient off -site receptors have been identified within a 1500-foot radius of the edge of waste of the Phase II Landfill. Because no potential risk receptors were identified downgradient of the Phase II Landfill during the desktop receptor survey, the continuation of the phytoremediation and MNA corrective action program for the remediation of volatile organic compounds (VOCs) at the facility is recommended. The next CAER to evaluate the performance of the MNA remediation strategy of the shallow, saprolite aquifer will be evaluated after the first semi-annual water quality monitoring event of 2025 per the approved Corrective Action Plan. \\till GOLDER November 29, 2022 GL19131339 Task 300 Table of Contents 1.0 INTRODUCTION.............................................................................................................................................1 1.1 Site Description and Background.........................................................................................................1 1.2 Groundwater Monitoring History ..........................................................................................................1 1.3 Aquifer Characteristics.........................................................................................................................3 1.4 Contaminant Distribution......................................................................................................................4 1.5 Description of Site Conceptual Model..................................................................................................5 1.6 Regulatory Status.................................................................................................................................6 2.0 CORRECTIVE ACTION SUMMARY..............................................................................................................5 2.1 Physical and Chemical Changes in the Aquifer Characteristics..........................................................6 2.2 Physical Changes in the Plume Characteristics..................................................................................6 2.3 Chemical Changes in the Plume Characteristics................................................................................6 2.3.1 VOC Degredation........................................................................................................................6 2.3.1.1 Aromatic Compounds.............................................................................................................6 2.3.1.2 Aliphatic Compunds................................................................................................................6 2.3.2 Geochemistry...............................................................................................................................6 2.3.3 BICHLOR Model..........................................................................................................................6 2.4 Refining the Conceptual Model...........................................................................................................6 2.5 Corrective Action Method Evaluation..................................................................................................7 2.6 Impacts at the Compliance Boundary and Off -site Migration..............................................................8 5.0 CONCLUSIONS AND RECOMMENDATIONS........................................................................................12 6.0 REFERENCES..........................................................................................................................................13 TABLES TABLE 1 Summary of Well Construction Information TABLE 2 Summary of Historical Groundwater Elevation Data %%till GOLDER 2 November 29, 2022 TABLE 3 Summary of Estimated Horizontal Flow Velocities TABLE 4 Summary of Historical Groundwater Monitoring Results — Detected Constituents TABLE 5 Summary of Historical Groundwater Field Parameters TABLE 6 Summary of Surface Water Monitoring Results — Detected Constituents TABLE 7 Summary of Surface Water Field Parameters FIGURES FIGURE 1 Groundwater Surface Contour Map, April 25, 2017 FIGURE 2 Groundwater Surface Contour Map, April 19, 2022 FIGURE 3 Trend Graphs of Constituents -of -Concern Concentrations FIGURE 4 Benzene Isopleth Map with Groundwater Surface Contours — April 25, 2017 FIGURE 5 1,4-Dichlorobenzene Isopleth Map with Groundwater Surface Contours — April 25, 2017 FIGURE 6 1,1-Dichloroethane Isopleth Map with Groundwater Surface Contours — April 25, 2017 FIGURE 7 Tetrachloroethene Isopleth Map with Groundwater Surface Contours — April 25, 2017 FIGURE 8 Trichloroethene Isopleth Map with Groundwater Surface Contours — April 25, 2017 FIGURE 9 Vinyl Chloride Isopleth Map with Groundwater Surface Contours — April 25, 2017 GL19131339 Task 300 FIGURE 10 Total Volatile Organic Compound Isopleth Map with Groundwater Surface Contours — April 25, 2017 FIGURE 11 Benzene Isopleth Map with Groundwater Surface Contours — April 19, 2022 FIGURE 12 1,4-Dichlorobenzene Isopleth Map with Groundwater Surface Contours — April 19, 2022 FIGURE 13 1,1-Dichloroethane Isopleth Map with Groundwater Surface Contours — April 19, 2022 %%till GOLDER 3 November 29, 2022 FIGURE 14 Tetrachloroethene Isopleth Map with Groundwater Surface Contours — April 19, 2022 FIGURE 15 Trichloroethene Isopleth Map with Groundwater Surface Contours — April 19, 2022 FIGURE 16 Vinyl Chloride Isopleth Map with Groundwater Surface Contours — April 19, 2022 GL19131339 Task 300 FIGURE 17 Total Volatile Organic Compound Isopleth Map with Groundwater Surface Contours — April 19, 2022 FIGURE 18 Hydrogeologic Cross -Section — April 19, 2022 FIGURE 19 Trend Graphs of Field Parameter Data FIGURE 20 Trend Graphs of Monitored Natural Attenuation Parameter Data FIGURE 21 Water Supply Wells, Springs, and Surface Water Intakes Map APPENDICES APPENDIX A Natural Attenuation Screening Protocol Summaries (October 2017 — April 2022) APPENDIX B Biochlor Model: Screening Forms (April 2017 and April 2022) %%till GOLDER 4 November 29, 2022 GL19131339 Task 300 1.0 INTRODUCTION This Corrective Action Evaluation Report (CAER) was prepared for the City of Greensboro (the City) by Golder Associates NC, Inc., a member of WSP (Golder), for the White Street Landfill's Phase II waste unit, which operates under North Carolina (NC) Solid Waste Permit No. 41-03. This CAER was prepared in accordance with the guidance document "Guidelines for Corrective Action Evaluation Reports" issued by the NC Department of Environmental Quality (DEQ). 1.1 Site Description and Background The location of the facility is shown on the inlay on Figure 1. The White Street Landfill is located approximately five miles northeast of downtown Greensboro, NC in Guilford County. Access to the site is from White Street, which runs eastward towards the site off Summit Avenue and NC Highway 29. Part of the James River watershed, North Buffalo Creek flows from southwest to northeast along the northwestern border of the facility and then flows eastward, away from the facility near the northeastern end of the facility. The location of this surface water feature and its associated tributaries are shown on the inlay on Figure 1. Based on the topography as shown on Figure 1, topographic surface elevations at the facility range from approximately 700 feet above mean sea level (AMSL) to nearly 850 feet AMSL. The site is surrounded by wooded and agricultural properties to the northwest, residential properties to the south and southwest, and residential and wooded properties to the east. The Phase II Landfill is located northeast of the closed Phase I Landfill and northeast of the active Phase III Landfill. The property also includes an active Type I compost facility, which is located in two general areas of the landfill property and are situated east and west of the Phase I Landfill and south of the Phase 11 Landfill. 1.2 Groundwater Monitoring History The original monitoring network consisted of one upgradient well (MW-13) and five downgradient wells (II-1, II-2, II-3, II-4, and II-5). An additional upgradient well (MW-14) and three additional downgradient wells (II-6, II-7, and 11-8) were installed in 1995. Assessment monitoring at the Phase II facility was initiated in 1997 due to groundwater exceedances of NC Appendix I constituents. The construction and demolition (C&D) waste unit began accepting waste over top of the closed Phase II municipal solid waste (MSW) waste unit in 1998. Well II-713 was installed in December 2000. Four monitoring wells (11-9, 11-10, 11-11, and 11-12) were installed in March 2005 as part of the Nature and Extent Study (NES) and well II-12 became part of the compliance monitoring network. Construction information for monitoring wells is presented as Table 1 and available boring logs were included in the 2017 CAER. An Assessment of Corrective Measures (ACM) was submitted in August 2007, which presented potential corrective measures that could be implemented at the Phase II waste unit. In October 2006, the City submitted an Alternate Source Demonstration (ASD) to address above -standard NC Appendix I inorganic compounds detected in groundwater samples from the Phase II area. The ASD presented data to support that the concentrations of barium, cadmium, cobalt, vanadium, and zinc detected at site monitoring wells are naturally occurring; the ASD was approved by the NC DEQ by letter on November 15, 2007. In response to a letter from the NC DEQ dated July 24, 2017, an addendum to the ASD was submitted on November 20, 2017. The Phase II facility is currently in corrective action due to concentrations of volatile organic compounds (VOCs) in groundwater above applicable standards. The Corrective Action Plan (CAP) was approved by the NC DEQ on \\till GOLDER November 29, 2022 GL19131339 Task 300 June 24, 2008, which proposed phytoremediation and monitored natural attenuation (MNA) as the remedial strategy. Three sentinel monitoring wells (SMW-1, SMW-3, and SMW-4) were installed in June 2010 and the EBuffer® hybrid poplar and willow trees were installed between March and November 2010. Well II-9 also serves as a sentinel well for the corrective action monitoring program. Monitoring well II-313 was installed in June 2011 to monitor groundwater quality downgradient of II-3, which has been impacted due to its close proximity to waste. The Phase II Landfill's compliance monitoring network is currently comprised of 12 monitoring wells that monitor the uppermost aquifer beneath the facility. Monitoring wells MW-13 and MW-14 are the upgradient wells for the Phase II Landfill; MW-13 is shared as an upgradient well with the Phase I Landfill. Wells II-1, II-2, II-3, 114A, II-5, II-6, II-7, II-713, II-8, and II-12 are downgradient compliance wells for the Phase II Landfill. Well II-313 is sampled to monitor water quality downgradient of 11-3. Groundwater samples are analyzed for the NC Appendix I list of constituents plus NC Appendix 11 `detects' during the first semi-annual water quality monitoring event of each year and are analyzed for the NC Appendix II list of constituents during the second semi-annual water quality monitoring event of each year. Currently, there are no additional NC Appendix II `detects' analyzed during the first semi-annual water quality monitoring events of each year The facility's monitoring network also includes five surface water sampling points, SW-1, SW-2, SW-3, SW-4, and SW-5. Surface water point SW-1 is the facility's upstream sampling point located along North Buffalo Creek, west of the facility, along Summit Avenue. Surface water point SW-2 is collected from a tributary to North Buffalo Creek that flows from south to north into the stream, just west of the facility. Surface water point SW-3 is located west of the facility, downstream of SW-1 and upstream of the confluence of North Buffalo Creek and the tributary where SW-2 is sampled. Surface water points SW-4 and SW-5 are both located downstream of SW-1, SW-2, and SW-3 along North Buffalo Creek. Surface water point SW-5 is located within the facility's property, at the northern end of the Phase II Landfill and SW-4 is located to the east of the facility, off Rankin Mill Road. Surface water points SW-1, SW-2, SW-3, and SW-4 are sampled in conjunction with the groundwater monitoring wells in accordance with the facility's permits and approved Water Quality Monitoring Plan for the Phase I, Phase II, and Phase III Landfills. Surface water point SW-5 is sampled in accordance with the permit 41-03, which includes the Phase I and Phase II Landfills, but does not include the Phase III Landfill. The corrective action monitoring activities include semi-annual monitoring of the four sentinel wells (II-9, SMW-1, SMW-3, and SMW-4). Three compliance monitoring wells (11-1, II-7, II-713) also serve as sentinel wells for the corrective action program. Groundwater samples from the sentinel wells are analyzed for the same parameters as the compliance monitoring wells. MNA parameters are collected semi-annually from upgradient well MW-13 and sentinel wells II-1, II-9, and SMW-3. The MNA parameters include chloride, nitrate, sulfate, sulfide, ethene, ethane, methane, total organic carbon (TOC), alkalinity, volatile fatty acids (VFAs). A CAER is to be prepared and submitted to the NC DEQ every five years to evaluate MNA and the phytoremediation at the Phase II Landfill. This report has been prepared to meet that requirement. 1.3 Aquifer Characteristics The White Street Landfill is located within the Carolina Slate Belt of the Piedmont Physiographic Province of NC (NCGS, 1985). Generally, the Carolina Slate Belt consists of Late Proterozoic to Cambrian volcanic and greenschist-facies, metasedimentary rocks intruded by plutonic suites (Butler and Secor, 1991). The site geology is characterized by a regional -scale felsic intrusive complex, which consists mainly of white to gray, fine- to coarse -grained, massive to foliated metamorphosed granitic rock. The region is characterized by regional and small-scale Mesozoic diabase dikes. \\till GOLDER November 29, 2022 GL19131339 Task 300 The uppermost groundwater beneath the facility is present in a shallow, unconfined aquifer comprised of saprolite and partially weathered rock (PWR). Groundwater occurs at depths of approximately 1 to 30 feet below ground surface. Historical depth to water measurements are summarized in Table 2 and were used to prepare a groundwater surface contour maps presented on Figures 1 and 2. As presented on Figures 1 and 2, the groundwater flow in the uppermost aquifer beneath the site is generally to the northwest toward North Buffalo Creek, which is located along the western property boundary for the southern portion of the Phase II Landfill and the northern property boundary. The facility boundary is located west of North Buffalo Creek for the northern portion of the Phase II Landfill. The groundwater surface contour map and interpreted flow directions have been generally consistent over the last five years for this facility. Based on the April 2017 and April 2022 groundwater surface contour maps (Figures 1 and 2), the average hydraulic gradient in the shallow aquifer underlying the site, as measured along the conceptual flow paths shown on the contour maps, were calculated to be 0.026 feet/foot and 0.022 feet/foot, respectively. Groundwater velocities were calculated using a hydraulic conductivity of 2.61 X 10-4 centimeters per second (cm/s), which is the average of the hydraulic conductivities calculated for the hydrogeologic units present at the facility's Phase II and Phase III Landfills. This average is based on slug test data by BPA Environmental & Engineering Inc. (Phase II) and G.N. Richardson & Associates (Phase III). The estimated effective porosity of the shallow aquifer is expected to range from 0.20 (saprolite) to 0.09 (fractured rock). The effective porosity of saprolite was used in calculations to provide a conservative estimate of groundwater flow. Using the above values, the estimated rate of groundwater flow for the uppermost aquifer beneath the facility was calculated using the following modified Darcy equation: Vgw = KI/ne where Vgw = average linear velocity (feet/year), K = hydraulic conductivity (feet/year), i = horizontal hydraulic gradient, and ne = effective porosity. Based on the April 2012 and April 2017 groundwater surface contour maps (Figures 1 and 2), the average estimated linear groundwater flow velocity under the waste management unit is between approximately 300 to 354 feet/year toward the northwest (Table 3). The linear velocity equation above makes the simplified assumptions of a homogeneous and isotropic aquifer. Therefore, this equation represents a likely average value for the uppermost aquifer and does not account for heterogeneous and/or anisotropic conditions that may be present in the uppermost aquifer at the facility. 1.4 Contaminant Distribution The constituents -of -concern (COCs) in groundwater at the Phase II Landfill are VOCs and based on the CAP and the 2017 CAER include benzene; 1,4-dichlorobenzene; 1,1-dichloroethane; tetrachloroethene; trichloroethene; and vinyl chloride. Although thallium was initially included as a COC, it was eliminated as a COC in the Request to Suspend Construction of Select Phytoremediation Beds, which was an amendment to the CAP and was submitted on February 3, 2010. Historical analytical results for groundwater samples are summarized in Table 4 of this report. Field parameters are summarized in Table 5. The laboratory certificates -of -analysis and field forms for sampling events between April 2017 and April 2022 were included in each semi-annual water quality monitoring report since the submittal of the 2017 CAER. \\till GOLDER November 29, 2022 GL19131339 Task 300 Ten NC Appendix I VOCs (benzene; chlorobenzene; 1,4-dichlorobenzene; 1,1-dichloroethane; cis-1,2-dichloroethene; methylene chloride; tetrachloroethene; toluene; trichloroethene; and vinyl chloride) were detected at concentrations above their respective Practical Quantitation Limits (PQLs) in samples from one or more downgradient monitoring wells during the 2017 to 2022 MNA sampling period. Five NC Appendix I VOCs were detected in groundwater samples at concentrations that exceeded their respective SWSLs and NC 2L Standards during this timeframe: benzene (in samples collected from II-1, II-3, and II-6), 1,4-dichlorobenzene (in samples collected from 11-1), 1,1-dichloroethane (in samples collected 11-2, 11-3, and SMW-3), tetrachloroethene (in samples collected from 11-2), and vinyl chloride (in samples from 11-2, 11-9, and SMW-3). NC Appendix 11 constituent endosulfan I was detected at a concentration above the PQL, but below the NC 2L Standard in the sample from II-6 during the October 2017 event. Based on the above information, the current COCs for the Phase II Landfill include benzene; 1,4-dichlorobenzene; 1,1-dichloroethane; tetrachloroethene; trichloroethene; and vinyl chloride. COC concentration trend graphs for the past 10 years, for the current COCs are presented on Figure 3. Based on available data, North Buffalo Creek, which is located to the west and north of the Phase II Landfill, is expected to act as a hydraulic boundary for the uppermost aquifer. Therefore, contaminants migrating from the Phase II Landfill is laterally limited as groundwater from the uppermost aquifer discharges into North Buffalo Creek. North Buffalo Creek is located at the facility boundary at the southwestern and northern portions of the Phase II Landfill. The facility boundary is located west of North Buffalo Creek in the northwestern portion of the Phase II Landfill. The vertical component of contaminant migration has been assessed by monitoring data for well MW-7B. VOCs detected in samples from MW-7B have been limited to acetone; 2 butanone; 1,1-dichloroethane; cis- 1,2-dichloroethene; and tetrachloroethene; only 1,1-dichloroethane and tetrachloroethene have been detected in the last five years and were reported at concentrations below their respective NC 2L Standards at this location. The lateral extent of contaminant migration is shown on isopleth maps included as Figures 4 through 17. Figures 4 through 9 represent each of the COCs during the April 2017 water quality monitoring event. Figure 10 is an isopleth map of total VOCs from the April 2017 event. Figures 11 through 16 represent each of the COCs during the April 2022 water quality monitoring event and Figure 17 shows the total VOCs from the April 2022 event. Figures 10 shows that during the April 2017 monitoring event, the primary areas of contaminant migration are northwest and north of the waste unit, which are referred to in this report as the north-northwest plume. Other areas with low-level concentrations of VOCs are located west of the waste unit at well II-1 (western plume), northeast of the waste unit at well 114A (northeastern plume), and south of the waste unit at well II-8 (southern plume). 1.5 Description of Site Conceptual Model The site conceptual model is typical for the NC Piedmont physiographic province and is based on models presented by Heath (1982 and 1989) and LeGrand (2004). The groundwater flow regime is two-part system consisting of saprolite overlying fractured, crystalline bedrock. The saprolite consists of an unconsolidated to semi -consolidated material ranging in size from silt to boulders. Water is introduced to the saprolite by precipitation and stream flow, which slowly moves downward into the bedrock. The site geology consists of fractured crystalline bedrock overlain by saprolite. The saprolite observed at the Facility has a transitional partially weathered rock zone that consists of weathered bedrock with little saprolite. The thickness of the saprolite and partially weathered rock varies across the site. The bedrock primarily consists of granitic gneiss. %%till GOLDER November 29, 2022 GL19131339 Task 300 Groundwater is expected to move through the saprolite to the partially weathered rock, where groundwater will primarily flow laterally on top of the bedrock. A component of the groundwater will flow through interconnected fractures into bedrock. The groundwater flow directions are generally expected to mimic topography but can be influenced by relict structure. The compliance groundwater monitoring wells installed around Phase II generally intersect and monitor the saprolite and partially weathered rock. The Phase II waste unit represents an upland area that generally slopes downward to the northwest toward North Buffalo Creek. The waste management unit is generally located in a recharge area of the uppermost aquifer. Recharge is limited by the landfill cover, which is composed of compacted low permeability clay. Any impacted groundwater will flow northwest toward North Buffalo Creek. Based on available data, North Buffalo Creek is expected to serve as a hydraulic boundary and groundwater in the saprolite, partially weathered rock, and upper bedrock are expected to discharge into North Buffalo Creek (S&ME, 2012). A cross-section showing typical site conditions downgradient of the Phase II waste unit is provided as Figure 18. Groundwater quality, down -gradient of the landfill, is monitored by the compliance monitoring well network and corrective action sentinel monitoring wells, which are located between the Phase II waste unit and North Buffalo Creek. The area of highest COC groundwater concentrations is expected to be directly beneath the waste unit. The compliance monitoring network is expected to encounter the dissolved phase groundwater plume, which represent the outer most portions of the plume. 1.5 Regulatory Status A NES, outlining several water quality standard exceedances near the north -northwestern property boundary of the Phase II Landfill, was submitted to the NC DEQ in August 2007. An Assessment of Corrective Measures (ACM) report was also submitted to the NC DEQ on August 31, 2007. Pursuant to the guidelines in 15A NCAC 13B.1636, the City of Greensboro then submitted a CAP, dated April 30, 2009, which was approved by NC DEQ in a letter dated May 14, 2009. In this letter, the Solid Waste Section approved the implementation of MNA and phytoremediation as the corrective action measures in accordance with 15A NCAC 13B.1636 and .0547. A technical evaluation of MNA as a remedy is required to be submitted at least once every five years in a CAER. The first CAER was submitted on May 31, 2012, and was approved in a letter dated August 16, 2012, and the NC DEQ granted the City permission to continue MNA for another five-year period. The second CAER was submitted on December 28, 2017, and was approved in a letter dated January 5, 2018, and the NC DEQ granted the City permission to continue MNA for another five-year period. This report has been prepared to serve as a technical evaluation of the five years since the submittal of the last CAER. 2.0 CORRECTIVE ACTION SUMMARY The CAP was approved by the NC DEQ on June 24, 2008, which proposed phytoremediation and MNA as the remedial strategies. MNA was selected as an appropriate remedy due to the low risk to human health, the fact that the groundwater flow is not towards any type of drinking water supply (i.e., off -site potential receptors), and the fact that the velocity of the groundwater does not indicate relatively fast off -site migration. Further, based on available data, North Buffalo Creek is expected to serve as a hydraulic boundary and groundwater likely discharges to North Buffalo Creek. North Buffalo Creek is located at the facility boundary at the southwestern and northern portions of the Phase II Landfill. The facility boundary is located west of North Buffalo Creek in the northwestern portion of the Phase II Landfill. Data collected at the site prior to implementing MNA showed that reducing geochemical conditions did exist at the landfill and that natural absorption, biodegradation, and molecular dispersion (i.e., attenuation) of VOC may already be occurring. \\till GOLDER November 29, 2022 GL19131339 Task 300 2.1 Physical and Chemical Changes in the Aquifer Characteristics There have been no noticeable changes to the physical and chemical characteristics of the aquifer during this MNA evaluation period. 2.2 Physical Changes in the Plume Characteristics With the installation and maturation of the phytoremediation stands, there theoretically have been changes to the physical characteristics of the plume. The hybrid poplar and willow trees were planted in April 2011 in two EBuffer® areas. The Northern EBuffer® Area is located between wells II-9 and SMW-3. The Southern EBuffer® Area is located in proximity to well II-1. As the trees in these areas have matured and grown over the last five years, it is expected that they have begun to remove a significant amount of shallow groundwater through evapotranspiration, and therefore, have influenced local groundwater flow toward each EBuffer® Area. 2.3 Chemical Changes in the Plume Characteristics With the installation and maturation of the trees within the EBuffer® areas, as well as fluctuations within the contaminant plume, there have been chemical changes in the contaminant plume over the five-year monitoring period. Since the implementation of the phytoremediation and MNA corrective action plan, the overall sizes of the total VOC plumes have decreased, as described in the following report sections. 2.3.1 VOC Degradation As presented in Section 1.4, six COCs were identified during the last corrective action evaluation period. These six VOCs can be divided into two main groups: aromatic and aliphatic organic compounds. The aromatic compounds identified as COCs at the facility are benzene and 1,4-dichlorobenzene, and the aliphatic compounds identified as COCs are 1,1-dichloroethane; tetrachloroethene; trichloroethene; and vinyl chloride. 2.3.1.1 Aromatic Compounds Aromatic VOCs are readily susceptible to the natural attenuation processes in aerobic environments. Once exposed to the atmosphere, aromatic VOCs are rapidly attenuated by volatilization, ultra -violet (UV) - oxidation, photodegradation, and/or biodegradation. Aromatic VOCs degrade slower in the anaerobic conditions found in the subsurface at the facility. Aromatic compounds with alkyl functional groups (e.g., toluene, and xylenes) are usually easier to degrade than benzene, because the presence of the functional group tends to increase the biodegradation rates. However, aromatic VOCs may also provide a carbon source for the stimulation of biological degradation of chlorinated aliphatic compounds under anaerobic conditions. Therefore, under the mixed -plume scenario present, natural biodegradation processes for both contaminant classes may be stimulated at the facility (USGS, 2006). Over the last five-year period, benzene has been detected at concentrations above the NC 2L Standard in samples from downgradient wells II-1, II-3, and II-6. The benzene detections in samples from II-1 have been sporadic since the April 2016 event and have been at or below the NC 2L Standard for the last five events. Concentrations of benzene in the samples from II-3 have generally been declining since the April 2016 event with concentrations below the NC 2L Standard since April 2019. Benzene has not been detected in samples from II-3 during the last 3 events and benzene has historically not been detected in samples from well II-3B, which is downgradient of II-3. The benzene detections in samples from II-6 have been sporadic since the October 2010 %%till GOLDER November 29, 2022 GL19131339 Task 300 event and benzene has not been detected in samples from II-6 during the last five events. Benzene has historically not been detected in samples from well SMW-4, which is downgradient of II-6. Since the October 2017 event, 1,4-dichlorobenzene has been detected at concentrations above the NC 2L Standard in samples from downgradient well II-1. Over that time period,1,4-dichlorobenzene concentrations in samples from II-1 have shown a seasonal influence typically with higher concentrations during the fall events. 2.3.1.2 Aliphatic Compounds Aliphatic VOCs are relatively soluble and mobile in groundwater, generally resistant to degradation in aerobic environments, and generally relatively harder to break down in groundwater than aromatic VOCs. Due to the relatively recalcitrant nature of aliphatic VOCs, higher concentrations of aliphatic VOCs are generally found further downgradient in groundwater than aromatic VOCs when similar source masses are involved. Unlike aromatic VOCs, biodegradation rates for most aliphatic VOCs are relatively higher in anaerobic aquifer conditions, as compared to aerobic aquifer conditions. Tetrachloroethene and trichloroethene are considered to be the `parent' aliphatic chlorinated compounds. These compounds will naturally degrade by reductive dechlorination in a predictable sequence in an anaerobic environment with the right geochemical conditions in the presence of the bacterium dehalococcoides (DHC). In anaerobic environments, the highest concentrations of tetrachloroethene and trichloroethene tend to be near the source, with degradation products (`daughter' products such as dichloroethene, vinyl chloride, and ethene) located downgradient from the source. Published literature indicate that the bacterium DHC will degrade tetrachloroethene to trichloroethene, dichloroethene, vinyl chloride, and finally to ethene in the absence of trichloroethene. Other bacteria have been shown to degrade one or more of the ethene compounds, but only DHC has been demonstrated to fully degrade the series of daughter products to ethene, an unregulated compound. Literature reports indicate that the DHC degradation series can be inhibited or interrupted at the DCE-to-vinyl-chloride stage and vinyl-chloride-to-ethene stage if the aquifer is characterized by weakly reductive conditions. Data obtained during the 2017 — 2022 time period indicate that the entire degradation suite of chlorinated ethene compounds is present in the groundwater at the site, suggesting the presence of DHC. Anaerobic conditions are often present in the waste mass of landfills. As a result, the degradation of tetrachloroethene and trichloroethene to intermediate products may occur in, or within close proximity to the waste mass. Degradation of chlorinated VOCs in groundwater can be indicated by sequentially overlapping plumes of parent and degradation products, with the vinyl chloride plume generally located farthest from the point of the release. When degradation is occurring within the waste mass, clear indication of the degradation sequence can become difficult due to the introduction of the degradation products at the source area. Results at the facility do definitively show that some reductive dechlorination and biodegradation have occurred suggesting that monitored natural attenuation is an effective remedy (USGS, 2006). Over the last five-year period, 1,1-dichloroethane has been detected at concentrations above the NC 2L Standard in samples from downgradient wells II-2, II-3, and SMW-3. The concentrations in samples from II-2 have been declining since the October 2010 event and have been below the NC 2L Standard during the last eight events. 1,1-dichloroethane has not been detected in samples from SMW-1, which is located downgradient of II-2. Concentrations of 1,1-dichloroethane in the samples from II-3 have been declining since the October 2015 event and have been below the NC 2L Standard during the last eight events. 1,1-dichloroethane has historically not been detected at concentrations above the NC 2L Standard in samples from well II-313, which is downgradient of \\till GOLDER November 29, 2022 GL19131339 Task 300 II-3. Concentrations of 1,1-dichloroethane in samples from SMW-3 have only exceeded the NC 2L Standard during the April 2018 event. 1,1-dichloroethane has not been detected at concentrations above the NC 2L Standard in samples from II-9, which is upgradient of SMW-3, since the May 2013 event. Over the last five-year period, tetrachloroethene has been detected once at a concentration above the NC 2L Standard in a sample from II-2 during the April 2017 event. Tetrachloroethene has not been detected in samples from II-2 during the last six events. Tetrachloroethene has historically not been detected in samples from SMW-1, which is located downgradient of II-2. Trichloroethene has not been detected at concentrations above the NC 2L Standard in samples from II-2 since the May 2013 event. Trichloroethene has not been detected in samples from II-2 during the last three events. Trichloroethene has not been detected in samples from SMW-1, which is located downgradient of II-2. Vinyl chloride has shown a decreasing trend in concentrations in samples from II-2 since April 2016 and has not been detected in samples during the last two events. Over the last five-year period at II-9, vinyl chloride was detected at a quantifiable concentration that exceeded the NC 2L Standard during the October 2017 event and was detected at an estimated concentration that exceeded the NC 2L Standard during the October 2020 event. Over the last five-year period, vinyl chloride had been sporadically detected in samples from SMW-3 at concentrations above the NC 2L Standard. 2.3.2 Geochemistry Analysis of geochemical or indicator parameters (including chloride, dissolved oxygen, ethane, ethene, methane, nitrate, oxygen reduction potential, total alkalinity, total organic carbon, sulfate, sulfide, and volatile fatty acids) was performed on samples from the `performance monitoring' of MNA monitoring wells. To assess the possibility that chlorinated (aromatic and aliphatic) VOCs are naturally attenuating at the site, geochemical parameters have been evaluated based on criteria presented in the Technical Protocol for Evaluating Natural Attenuation of Chlorinated Solvents in Ground Water (the Protocol), Table 2.3 (EPA, 1998). The United States (US) Environmental Protection Agency (EPA) screening results are summarized in Appendix A of this report. The screening results present the scoring criteria in the Protocol, as calculated for the background monitoring well MW-14 and downgradient / sentinel monitoring wells II-1, II-9, and SMW-3 for each water quality monitoring event since the April 2017 event. The reported concentrations of dissolved oxygen (DO) are generally lower at the downgradient / sentinel wells, than that of the upgradient well MW-14. The average DO concentrations at the three downgradient / sentinel wells II-1, II-9, and SMW-3 are 1.2, 1.0, and 1.1 milligrams per liter (mg/L), respectively, since April 2017. The average DO concentration at the upgradient well MW-14 is 2.5 mg/L since April 2017. During the April 2012 to April 2017 evaluation period, measurements of oxygen reduction potential (ORP) were generally much higher at the upgradient well MW-14 with an average value of 204 milli -volts (mV) compared to an average ORP at downgradient wells II-1, II-9, and SMW-3 of 47, 86, and 32 mV, respectively (Table 5, Figure 19). During the April 2017 to April 2022 period, there has been an increase in average ORP measurements at II-9 and SMW-3 with MW-14 having an average value of 190 mV compared to an average ORP at II-1, II-9, and SMW-3 of 22, 240, and 94 mV, respectively (Table 5, Figure 19). The upgradient to downgradient comparisons of ORP indicate that a decrease in the reductive environment downgradient of the plume. As noted in the previous section, a reducing geochemical environment is generally supportive of reductive dechlorination (i.e., biodegradation) of chlorinated VOCs. \\till GOLDER November 29, 2022 GL19131339 Task 300 The concentration of sulfate is variable but is consistently lower in the upgradient well compared to the downgradient wells. Concentrations of sulfate in samples from the upgradient well MW-14 has averaged 2.1 mg/L since April 2017. The concentrations of sulfate at downgradient wells II-1, II-9, and SMW-3 have averaged 40, 27, and 27 mg/L, respectively since April 2017 (Table 4). Concentrations of sulfate greater than 20 mg/L can inhibit reductive dechlorination. Nitrate concentrations above 1 mg/L can also inhibit reductive dechlorination. There have been no concentrations of nitrate exceeding 1 mg/L in samples from MW-14, II-1, II-9, and SMW-3 since October 2018 (Table 4). Chloride is ubiquitous and is generally non -reactive, and should, as a result of reductive dechlorination, accumulate in the groundwater. Concentrations of chloride have been routinely detected at quantifiable concentrations in samples from downgradient monitoring wells at the facility while only estimated concentrations have been detected in samples from upgradient well MW-14 during the current MNA evaluation period, providing evidence of reductive dechlorination of chlorinated COCs. In areas of reductive dechlorination of chlorinated VOCs, there is a positive correlation between zones of microbial activity and increased alkalinity. Increases in alkalinity result from the dissolution of minerals in the aquifer matrix, which is driven by the production of carbon dioxide by the metabolism of microorganisms. The alkalinity of groundwater samples was determined by laboratory analysis for total alkalinity during the current MNA evaluation period. Figure 19 shows a significantly higher concentrations of alkalinity at the downgradient wells compared to the upgradient well. Figure 19 also shows the elevated concentrations of ferrous iron in downgradient wells as opposed to background well, again providing supporting evidence of biodegradation of chlorinated VOCs. Based on the evaluations presented above (refer to Tables 4 and 5, Figures 19 and 20, and Appendix A), the geochemical or indicator data generally indicate limited to adequate evidence for anaerobic biodegradation of chlorinated VOCs and suggest that anaerobic biodegradation of the chlorinated VOCs is naturally occurring. Further, the presence of aromatic hydrocarbons within the plume and the generally reducing geochemical conditions also allow for the degradation of the aromatic hydrocarbons via utilization as a carbon source during biological degradation of chlorinated aliphatic hydrocarbons 2.3.3 BICHLOR Model The northern part of the contaminant plume has consistently had the highest groundwater contaminant concentrations and has the largest area of influence readily seen on the total VOC isoconcentration maps (Figures 10 and 17); therefore, this area was selected for a performance evaluation of MNA. The flow paths between II-9 and SMW-3, II-2 and SWM-1, and II-3 and II-313 were selected for modeling utilizing BIOCHLOR (EPA, 2000) due to the alignment of monitoring wells with groundwater flow downgradient of the Phase II waste unit, essentially following the contaminant plume. Modeling was performed for the April 2017 through April 2022 monitoring events to compare the status of the contaminant plumes at the beginning and end of the current 5-year evaluation period. The models assume that waste was first placed in the Phase II Landfill in 1995. The BIOCHLOR modeling program generates plots that compare concentrations of tetrachloroethene, trichloroethene, dichloroethene, vinyl chloride, and ethene over time with no degradation, to concentrations where sequential 1st order biological attenuation is occurring. Each data input page and the associated constituent plots are provided as Appendix B. \\till GOLDER November 29, 2022 GL19131339 Task 300 Appendix B include the BIOCHLOR modeling results of flow path from II-9 and SMW-3 for April 2017 through April 2022. Tetrachloroethene and trichloroethene were not detected in samples from well II-9 and SMW-3 during any of the monitoring events. Additionally, dichloroethane was not detected in samples from SMW-3 during any of the events. Dichloroethene concentrations plot on or below the first order decay line during each event except concentrations at SMW-3 plot between the first order decay line and the no degradation line during the April 2019, April 2020, April 2021, and October 2021 events. Vinyl chloride was not detected in the samples from II-9 during the April 2021 and April 2022 events. Vinyl chloride concentrations plot on or below the 1st order decay line during each remaining event. Ethene was not detected in the samples from II-9 and SMW-3 during the October 2020 and April 2022 events and ethene was not detected in the samples from II-8 during the April 2021 and October 2021 events. Ethene concentrations plot on or below the 1st order decay line during each remaining event. The results from these plots indicate that natural attenuation is occurring at the site and that as long as conditions at the site continue to be strongly anaerobic, biodegradation will likely continue. Appendix B show the BIOCHLOR modeling results of flow path II-2 and SMW-1 for April 2017 through April 2022. Tetrachloroethene, trichloroethene, dichloroethane, and vinyl chloride were not detected in any samples from SMW-1 during the events. Ethene was not analyzed in any samples from II-2 and SMW-1 during the events. Tetrachloroethene was only detected in samples from II-2 during the April 2017, October 2021, and April 2019 events. During those events, tetrachloroethene plotted below the 1st order decay line. Trichloroethene was not detected in the samples from II-2 during the April 2021, October 2021, and April 2022 events. Trichloroethene plotted below the 1st order decay line during the other events. Dichloroethene was not detected in the sample from II-2 during the October 2021 event. Dichloroethene plotted on or below the 1st order decay line during the other events. Vinyl chloride was not detected in the samples from II-2 during the October 2021 and April 2022 events. Vinyl chloride plotted below the 1st order decay line during the remaining events. The results from these plots indicate that natural attenuation is occurring at the site and that as long as conditions at the site continue to be strongly anaerobic, biodegradation will likely continue. Appendix B show the BIOCHLOR modeling results of flow path II-3 and II-313 for April 2017 through April 2022. Tetrachloroethene, trichloroethene, and vinyl chloride were not detected in any samples from II-3 and II-313 during the events. Ethene was not analyzed in any samples from II-3 and II-313 during the events. Dichloroethene was not detected in any samples from II-313 during the events and was not detected in II-3 during the April 2021, October 2021, and April 2022 events. Dichloroethene plotted below the 1st order decay line during the remaining events. Vinyl chloride was not detected in the samples from II-3 during the October 2021 and April 2022 events. Vinyl chloride plotted below the 1st order decay line during the remaining events. The results from these plots indicate that natural attenuation is occurring at the site and that as long as conditions at the site continue to be strongly anaerobic, biodegradation will likely continue. According to the current data, it is likely that the plume sizes are relatively stable, as indicated by the BIOCHLOR model. The cis- 1,2-dichloroethene variety is the prominent form of dichloroethene, which indicates that the detections represent daughter products of trichloroethene. In summary, the results of the BIOCHLOR modeling conducted for April 2017 and April 2022 at the facility indicate that biodegradation is occurring downgradient of the Phase II waste unit. 2.4 Refining the Conceptual Model The site conceptual model presented in the May 2012 Phase II Corrective Action Evaluation Report submitted by S&ME, Inc. remains an accurate depiction of site conditions. Due to the low-level detections of VOCs at the facility, the BIOCHLOR models are limited in its ability to accurately depict site conditions (Appendix B). The \\till GOLDER 10 November 29, 2022 GL19131339 Task 300 BIOCHLOR models along with other data including the EPA screening forms (Appendix A) and the geochemical and indicator parameters (Tables 4 and 5 and Figures 19 and 20) suggest biodegradation of COCs is occurring at the facility. Some evidence, including data in the EPA screening forms and indicator parameter data summarized, indicate that reductive biodegradation may decrease with an increasing distance from the source. As reductive dechlorination is often limited by the amount of available organic carbon, such as MSW landfill leachate, as it is consumed by the biodegradation process, a slower rate of biodegradation away from the landfill (i.e., an organic carbon source) is expected. 2.5 Corrective Action Method Evaluation The MNA corrective action method shows evidence that biodegradation is occurring along the evaluated transects (II-9 and SMW-2, II-2 and SMW-1, and II-3 and II-3B) and that there is a reduction in contaminant concentrations (with respect to chlorinated ethene COCs) along that transect. The BIOCHLOR models suggest that the plumes have reached steady state conditions. Evidence is present to support that monitored natural attenuation and phytoremediation as appropriate groundwater corrective action remedies for the Phase II Landfill. As stated previously in this report, there is sufficient evidence showing that reductive conditions exist and that reductive dechlorination is occurring. Due to these strongly reductive conditions, it appear that the aromatics, more specifically benzene and 1,4-dichlorobenzene, may not breakdown as easily as they would in more aerobic conditions, though they may be utilized and degraded as a carbon source in a mixed anaerobic plume scenario, effectively stimulating reductive dechlorination. Also, if the aromatic compounds do transport downgradient, they likely encounter aerobic conditions conducive to their biodegradation located farther from the landfill. Support for this is shown on Figure 3. For example, concentrations of benzene and 1,4-dichlorobenzene have not decreased significantly in samples immediately downgradient of the waste unit but have not been detected in wells further downgradient. However, concentrations of the aliphatic COCs have been decreasing in samples immediately downgradient of the waste unit. 2.6 Impacts at the Compliance Boundary and Off -site Migration Figures 4 through 9 show concentration isopleths for the COCs from the April 2017 water quality monitoring event, which was the last routine monitoring event prior to the last CAER being submitted. Figure 10 includes isopleths for total VOCs from the April 2017 event. Based on the April 2017 laboratory analysis, VOCs that originate from the Phase II Landfill are interpreted to have migrated downgradient to North Buffalo Creek at that time, which likely serves as a hydraulic divide for shallow groundwater. North Buffalo Creek is located at the facility boundary at the southwestern and northern portions of the Phase II Landfill. The facility boundary is located west of North Buffalo Creek in the northwestern portion of the Phase II Landfill. Also based on the April 2017 analytical data, COCs originating from the Phase II Landfill are interpreted to have not migrated to North Buffalo Creek at concentration above their respective NC 2L Standards. Figure 11 through 16 show concentration isopleths for the COCs from the April 2022 water quality monitoring event. Figure 17 includes isopleths for total VOCs from the April 2022 event. Based on the April 2022 laboratory analyses, VOCs originating from the Phase II Landfill are also interpreted to have migrated downgradient to North Buffalo Creek. Based on the April 2022 analytical data, COCs originating from the Phase II Landfill are interpreted to have not migrated to North Buffalo Creek at concentration above their respective NC 2L Standards. Further, the COCs have not been detected at quantifiable concentrations at the downstream surface water sampling locations during this five-year evaluation period (Table 6). \\till GOLDER 11 November 29, 2022 GL19131339 Task 300 As discussed previously there are four areas of contamination based on analytical data from the April 2017 monitoring event and depicted on Figure 10 and are referred to as the north-northwest plume, the western plume, the northeastern plume, and the southern plume. Based on the isopleth maps from the April 2017 event and the April 2022 event, included as Figures 4 through 17, the contaminant plumes of COCs have overall been decreasing in size over the five-year evaluation period. At the largest area of contamination, the north-northwest plume, all of the COC concentrations declined between April 2017 and April 2022. In April 2017, benzene was detected at concentrations above the NC 2L Standard at II-3; 1,4-dichlorobenzene was detected below the NC 2L Standard at II-2 and II-3; tetrachloroethene and vinyl chloride were detected at II-2 above their respective NC 2L Standards; and trichloroethene was detected at II-2 below the NC 2L Standard. In April 2022, tetrachloroethene, trichloroethene, and vinyl chloride were detected in samples from wells within the north-northwest plume area. In April 2017, 1,1-dichloroethane was detected at II-2 and II-3 at concentrations above the NC 2L Standard. 1,1-dichloroethene was also detected at II-313, II-713, and SMW-3 below the NC 2L Standard during the April 2017 event. During the April 2022 event, 1,1-dichloroethane was detected at II-2, II-3, and SMW-3 at concentrations below the NC 2L Standard. In the western plume, 1,4-dichlorobenzene was the only COC detected at well II-1 during the April 2017 event, which was reported at a concentration below the NC 2L Standard. The concentration of 1,4-dichlorobenzene increased and was detected above the NC 2L Standard during the April 2022 event at 11-1, but no other COCs were detected. In the northeastern plume, three COCs (benzene; 1,4-dichlorobenzene; and 1,1-dichloroethane) were detected at concentrations below their respective NC 2L Standards at well II4A during the April 2017 event. No COCs were detected during the April 2022 event. In the southern plume, no COCs were detected at well II-8 during the April 2017 event, though other NC Appendix I VOCs (chlorobenzene, chloromethane, and toluene) were detected below their respective NC 2L Standards. During the April 2022 event, benzene was detected at II-8 at an estimated concentration below the NC 2L Standard. No other NC Appendix I VOCs were detected during the April 2022 event. Based on the desktop study receptor map presented as Figure 21 of this report, there are no downgradient off -site receptors identified within 1500 feet of the contaminant source as shown on the aerial imagery and after a review of the available public water supply geographic information system (GIS) database. One public water supply well was identified within 1500 feet of the waste unit, but the well is located southeast and upgradient of the Phase II Landfill. Historically, there have been estimated concentrations of VOCs in samples from downstream surface water monitoring points SW-4 and SW-5 but based on detections and concentrations of VOCs in upstream wells, it appears the source of these detections are from an off -site source (Table 6). 5.0 CONCLUSIONS AND RECOMMENDATIONS In conclusion, based on our evaluation of available data for the five-year MNA evaluation period from (April 2017 through April 2022), the contaminant plume has not reached the facility boundary to the west and north of the Phase II Landfill. Based on analytical data from the sentry wells, NC 2L Standard exceedances of the COCs continue to be contained within the facility property boundary. Overall, as presented, the BIOCHLOR modeling (Appendix A) shows that the groundwater plumes have reached stabilization and trend graphs (Figure 3) show overall declining COC trends. \\till GOLDER 12 November 29, 2022 GL19131339 Task 300 Based on the available information, no downgradient off -site receptors have been identified within a 1500-foot radius of the edge of waste of the Phase II Landfill (Figure 21). Because no potential risk receptors were identified downgradient of the Phase II Landfill during the desktop receptor survey, the continuation of the phytoremediation and MNA corrective action program for the remediation of VOCs at the facility is recommended. Should a new receptor be identified in the immediate area or if the plume appears to be migrating off site above the NC 2L Standards, the installation of additional monitoring wells and/or re-evaluating the use of phytoremediation and MNA as a remedy may be appropriate; however, this situation does not currently exist. There is not an evident need to implement a contingency plan to address VOC concentrations in groundwater. Based on current site conditions, the following recommendations are proposed: ■ Remove 1,1-dichloroethane as a COC because it has not been detected at concentrations above the NC 2L Standard at groundwater monitoring wells since the April 2018 sampling event (Table 4) ■ Tetrachloroethene be removed as a COC as it has not been detected at concentrations above the NC 2L Standard at groundwater monitoring wells since the April 2017 sampling event and has not been detected above the method detection limit (MDL) since October 2019 ■ Trichloroethene be removed as a COC as it has not been detected at concentrations above the NC 2L Standard at groundwater monitoring wells since the May 2013 sampling event and has not been detected above the MDL since October 2020 The next CAER will be prepared after completion of the first semi-annual water quality monitoring event of 2027. 6.0 REFERENCES Butler, J. Robert and Secor, Donald T., Jr., 1991, The Central Piedmont, in Horton, J. W., Jr., and Zullo, V.A., eds., The Geology of the Carolinas: The University of Tennessee Press, p. 59 78. Golder Associates NC, Inc., 2017, Water Quality Monitoring Report, First Semi -Annual 2017 Sampling Event, White Street Landfill — Phase II, Permit 41-03, Greensboro, NC, July. Golder Associates NC, Inc., 2017, Groundwater Corrective Action Evaluation Report, White Street Landfill — Phase II, Permit 41-03, Greensboro, NC, December. Heath, R.C., 1982, Basic Ground -Water Hydrology. Water Supply Paper 2220. U.S. Geological Survey, Federal Center, Box 25425, Denver, Colorado. Heath, R.C., 1989, The Piedmont ground -water system, in Ground Water in the Piedmont; Edited by Daniel, C., White, R., and Stone, P., Proceedings published by Clemson University, pp. 1-13. LeGrand, H.E., 2005, A master conceptual model for hydro -geological site characterization in the Piedmont and Mountain Region of North Carolina. NC Department of Environment and Natural Resources, Ground Water Section. http://h2o. enr.state.nc.us/aps/gpu/documents/legrand_04.pdf NCGS (North Carolina Geologic Survey), 1985, Geologic Map of North Carolina. North Carolina Department of Environment and Natural Resources (NCDENR) Solid Waste Section, Guidelines for Corrective Action Evaluation Reports, http://portal.ncdenr.org/web/wm/guidance-and-memos. \\till GOLDER 13 November 29, 2022 GL19131339 Task 300 S&ME, Inc., 2006, White Street Landfill — Alternate Source Demonstration for Metals, Greensboro, NC, October. S&ME, Inc. 2007, White Street Landfill — Phase 11 Assessment of Corrective Measures, Greensboro, NC, August. S&ME, Inc., 2007, White Street Landfill — Alternate Source Demonstration for Metals Amendment, Greensboro, NC, September. S&ME, Inc., 2007, Water Quality Monitoring Plan; White Street Landfill Phase I and Phase II Areas, Greensboro, NC, December. S&ME, Inc., 2009, White Street Landfill — Phase II Corrective Action Plan, Greensboro, NC, S&ME, Inc., 2010, White Street Landfill - Request to Suspend Construction of Select Phytoremediation Beds, Greensboro, NC, February. S&ME, Inc., 2012, White Street Landfill — Phase 11 Corrective Action Evaluation Report, Greensboro, NC, Permit # 41-03, May. United States Environmental Protection Agency (EPA), 1998, Technical Protocol for Evaluating Natural Attenuation of Chlorinated Solvents in Ground Water, Table 2.3. United States Environmental Protection Agency (EPA), 2002, BIOCHLOR Natural Attenuation Decision Support System: Users Manual Version 1.0 and Addendum, Version 2.2. United States Geological Survey (USGS), 2006, Description, Properties, and Degradation of Selected Volatile Organic Compounds Detected in Ground Water— A Review of Selected Literature. \\till GOLDER 14 November 29, 2022 Signature Page Golder Associates NC, Inc. r Andrew Wrenn Consultant, Environmental Scientist Rachel P. Kirkman, PG Director, Geologist Engineering Lic. No. C-2862/Geology Lic. No. C-399 GL19131339 Task 300 Golder Associates NC, Inc. is a licensed user of the Golder trademark, and an associated operating entity. https://wsponlinenam-my.sharepoint.com/personal/rachel kirkman_wsp_comldocumentslgreensboro119131339.300-001-r-reva.docx W,I) GOLDER 15 November 29, 2022 GL19131339 Task 300 TABLES \\till GOLDER November 2022 TABLE 1 Summary of Well Construction Information White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina GL19131339.300 Monitoring Well Identification Northing Easting Date of Construction Top -of -Casing Elevation (ft AMSL) Well Depth (feet) Well Diameter (inches) Screened Interval (ft bgs) Geology of Screened Interval Well Status II-1 863027.3314 1787495.6766 07/14/89 702.78 26.6 2 20.0 30.0 Water Table Aquifer Compliance / Sentinel Well II-2 864184.3539 1788403.6364 07/14/89 704.59 33.4 2 24.0 34.0 Water Table Aquifer Compliance Well II-3 864245.1544 1789031.9589 07/14/89 699.37 32.6 2 23.0 33.0 Water Table Aquifer Compliance Well II-313 864365.2295 1789116.1385 06/03/11 694.49 25.0 2 10.0 25.0 Water Table Aquifer NES Well II4A 863581.7689 1789359.9497 08/13/13 707.25 25.0 2 10.0 25.0 Water Table Aquifer Compliance Well II-5 863032.9389 1789345.4003 07/14/89 722.01 16.0 2 19.0 29.0 Water Table Aquifer Compliance Well II-6 862513.6388 1787002.3258 07/14/89 704.39 20.7 2 7.5 20.0 Water Table Aquifer Compliance Well II-7 863701.8380 1787823.6893 07/14/89 697.75 27.7 2 12.5 27.5 Water Table Aquifer Compliance / Sentinel Well II-7B 863703.7309 1787839.3286 12/11/00 700.86 103.5 2 90.7 103.5 Water Table Aquifer Compliance / Sentinel Well II-8 861207.1750 1786938.1186 07/14/89 717.76 35.0 2 20.0 35.0 Water Table Aquifer Compliance Well II-9 863924.1830 1787952.6658 03/21/05 696.78 25.0 2 7.8 21.8 Water Table Aquifer Sentinel Well II-12 862084.6402 1786802.0936 03/22/05 699.80 22.8 2 5.7 19.7 Water Table Aquifer Compliance Well SMW-1 864374.8279 1788376.0728 07/08/10 692.87 18.4 2 8.4 18.4 Water Table Aquifer Sentinel Well SMW-3 863983.9035 1787857.4169 07/08/10 694.16 25.0 2 10.0 25.0 Water Table Aquifer Sentinel Well SMW-4 862512.4617 1786835.2747 07/08/10 697.43 23.9 2 8.9 23.9 Water Table Aquifer Sentinel Well MW-13 858763.9106 1783188.5206 07/14/89 741.24 33.8 2 20.0 35.0 Water Table Aquifer Background Well MW-14 859453.8757 1788632.2264 07/14/89 786.65 34.4 2 20.0 35.0 Water Table Aquifer Background Well Notes: 1. ft AMSL= feet above mean sea level 2. ft bgs = feet below ground surface 5. Unless otherwise noted, well construction survey information, Water Quality Monitoring Reports and Water Quality Monitoring Plans provided by Survey Solutions S&ME. ►►%I) GOLDER 1of1 November 2022 GL19131339.300 TABLE 2 Summary of Historical Groundwater Elevation Data White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Well IDs MW-13 MW-14 II-1 II-2 II-3 II-313 II-4 II4A II-5 II-6 II-7 II-713 II-8 II-9 II-10 II-11 II-12 SMW-1 SMW-3 SMW-4 TOC Elevation 741.24 786.65 702.78 704.59 699.37 694.49 707.30 707.25 722.01 704.39 697.75 700.86 717.76 696.78 703.78 701.63 700.96 692.87 694.16 697.43 (ft AMSL) Date GW Elev DTW GW Elev DTW GW Elev • DTW GW Elev • DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW GW Elev DTW 10/14/98 718.61 22.69 738.95 26.35 749.56 19.02 743.48 21.17 671.9 16.15 NI NI 688.64 14.63 NI NI 705.51 8.80 683.11 15.36 668.22 15.86 -- -- 696.94 10.15 NI NI NI NI NI NI NI NI -- -- -- -- -- -- 05/25/99 722.11 19.19 741.60 23.70 675.66 16.68 670.01 20.04 672.46 15.59 NI NI 694.41 8.86 NI NI 707.57 6.74 688.64 9.83 670.21 13.87 -- -- 697.02 10.07 NI NI NI NI NI NI NI NI -- -- -- -- -- -- 09/22/99 721.32 19.98 738.15 27.15 675.19 17.15 670.19 19.86 672.50 15.55 NI NI 691.48 11.79 NI NI 707.59 6.72 686.67 11.80 670.41 13.67 -- -- 697.40 9.69 NI NI NI NI NI NI NI NI -- -- -- -- -- -- 03/27/00 722.49 18.81 742.16 23.14 677.07 15.27 671.51 18.54 672.63 15.42 NI NI 696.90 6.37 NI NI 708.31 6.00 689.25 9.22 670.66 13.42 -- -- 697.69 9.40 NI NI NI NI NI NI NI NI -- -- -- -- -- -- 09/13/00 722.37 18.93 741.46 23.84 675.85 16.49 6.70.67 19.38 672.95 15.10 NI NI 693.97 9.30 NI NI 707.49 6.82 687.37 11.10 670.36 13.72 -- -- 697.39 9.70 NI NI NI NI NI NI NI NI -- -- -- -- -- -- 03/13/01 721.80 19.50 742.16 23.14 676.73 15.61 671.13 18.92 673.10 14.95 NI NI 696.35 6.92 NI NI 708.09 6.22 688.44 10.03 670.57 13.51 -- -- 697.37 9.72 NI NI NI NI NI NI NI NI -- -- -- -- -- -- 09/13/01 720.98 20.32 739.35 25.95 675.60 16.74 669.64 20.41 672.12 15.93 NI NI 691.94 11.33 NI NI 706.96 7.35 684.39 14.09 669.83 14.25 669.61 17.60 697.35 9.74 NI NI NI NI NI NI NI NI -- -- -- -- -- -- 03/08/02 719.08 22.22 739.11 26.19 677.70 14.64 670.10 19.95 672.27 15.78 NI NI 693.72 9.55 NI NI 707.68 6.63 685.95 12.52 670.25 13.83 670.16 17.05 697.07 10.02 NI NI NI NI NI NI NI NI -- -- -- -- -- -- 09/18/02 722.10 19.20 736.11 29.19 675.66 16.68 672.13 17.92 671.50 16.55 NI NI 689.72 13.55 NI NI 707.14 7.17 685.65 12.82 669.54 14.54 669.44 17.77 697.45 9.64 NI NI NI NI NI NI NI NI -- -- -- -- -- -- 04/15/03 724.59 16.71 749.72 15.58 680.23 12.11 672.11 17.94 673.43 14.62 NI NI 698.29 4.98 NI NI 708.16 6.15 690.21 8.26 672.70 11.38 670.97 16.24 697.51 9.58 NI NI NI NI NI NI NI NI -- -- -- -- -- -- 10/15/03 722.82 18.48 746.83 18.47 677.58 14.76 671.18 18.87 674.61 13.44 NI NI 696.16 7.11 NI NI 707.53 6.78 687.39 11.08 670.60 13.48 670.34 16.87 697.88 9.21 NI NI NI NI NI NI NI NI -- -- -- -- -- -- 03/24/04 722.42 18.88 746.79 18.51 676.86 15.48 670.87 19.18 674.54 13.51 NI NI 697.60 5.67 NI NI 708.04 6.27 687.15 11.32 670.27 13.81 670.13 17.08 697.28 9.81 NI NI NI NI NI NI NI NI -- -- -- -- -- -- 09/22/04 722.56 18.74 742.04 23.26 676.70 15.64 670.44 19.61 672.43 15.62 NI NI 693.54 9.73 NI NI 707.45 6.86 687.20 11.27 670.42 13.66 670.14 17.07 697.45 9.64 NI NI NI NI NI NI NI NI -- -- -- -- -- -- 05/09/05 722.14 19.16 746.03 19.27 676.38 15.96 670.72 19.33 674.79 13.26 NI NI 696.23 7.04 NI NI 707.03 7.28 686.65 11.82 670.15 13.93 669.9 17.31 697.79 9.30 686.5 10.51 685.16 18.74 685.99 15.78 691.09 8.71 -- -- -- -- -- -- 10/11 /05 719.72 21.58 738.24 27.06 675.00 17.34 668.89 21.16 671.65 16.40 NI NI 690.19 13.08 NI NI 707.16 7.15 683.38 15.09 669.35 14.73 668.88 18.33 697.45 9.64 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 04/24/06 720.25 21.05 740.68 24.62 675.67 16.67 669.77 20.28 671.97 16.08 NI NI 695.17 8.10 NI NI 707.83 6.48 686.5 11.97 669.61 14.47 669.46 17.75 697.44 9.65 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10/19/06 721.69 19.61 737.16 28.14 675.49 16.85 669.85 20.20 670.91 17.14 NI NI 690.69 12.58 NI NI 706.71 7.60 685.21 13.26 669.85 14.23 669.61 17.60 697.45 9.64 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 04/12/07 721.61 19.63 764.37 22.28 688.87 13.91 685.82 18.77 683.22 16.15 NI NI 699.63 7.67 NI NI 714.77 7.24 694.20 10.19 685.20 12.55 685.04 15.82 708.44 9.32 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 09/26/07 717.41 23.83 757.27 29.38 685.00 17.78 682.82 21.77 682.16 17.21 NI NI 691.25 16.05 NI NI 712.51 9.50 689.06 15.33 682.24 15.51 682.04 18.82 707.61 10.15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 04/29/08 722.96 18.28 759.74 26.91 691.81 10.97 685.65 18.94 683.80 15.57 NI NI 698.27 9.03 NI NI 716.34 5.67 696.92 7.47 687.78 9.97 684.84 16.02 708.45 9.31 -- -- -- -- -- -- 691.93 7.87 -- -- -- -- -- -- 12/03/08 -- -- -- -- -- -- -- -- -- -- NI NI -- -- NI NI -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 04/17/09 722.87 18.37 759.02 27.63 688.68 14.10 685.68 18.91 683.71 15.66 NI NI 698.92 8.38 NI NI 716.10 5.91 695.43 8.96 684.61 13.14 683.83 17.03 708.50 9.26 -- -- -- -- -- -- 691.11 8.69 -- -- -- -- -- -- 04/28/10 721.70 19.54 762.67 23.98 686.53 16.25 684.56 20.03 682.37 17.00 NI NI 699.75 7.55 NI NI 714.49 7.52 692.48 11.91 683.86 13.89 681.55 19.31 708.27 9.49 -- -- -- -- -- -- 689.55 10.25 -- -- -- -- -- -- 08/03/10 -- -- 762.73 23.92 685.82 16.96 684.30 20.29 -- -- NI NI -- -- NI NI -- -- -- -- 683.30 14.45 683.05 17.81 -- -- 685.08 11.70 -- -- -- -- -- -- 681.75 11.12 683.83 10.33 688.76 8.67 10/11 /10 721.13 20.11 757.98 28.67 685.92 16.86 683.97 20.62 682.04 17.33 NI NI 692.80 14.50 NI NI 713.80 8.21 691.86 12.53 683.59 14.16 683.29 17.57 708.27 9.49 -- -- -- -- -- -- 688.91 10.89 681.70 11.17 683.85 10.31 688.87 8.56 05/09/11 722.33 18.91 759.52 27.13 687.65 15.13 685.22 19.37 682.45 16.92 -- -- 696.97 10.33 NI NI 715.10 6.91 693.52 10.87 684.06 13.69 683.82 17.04 708.57 9.19 -- -- -- -- -- -- 689.74 10.06 -- -- -- -- -- -- 10/10/11 719.26 21.98 754.73 31.92 685.92 16.86 684.36 20.23 681.86 17.51 680.33 14.16 691.34 15.96 NI NI 714.83 7.18 691.29 13.10 683.73 14.02 683.59 17.27 708.19 9.57 684.76 12.02 -- -- -- -- 689.36 10.44 682.30 10.57 683.80 10.36 688.85 8.58 04/18/12 721.34 19.90 758.49 28.16 687.78 15.00 684.95 19.64 682.07 17.30 -- -- 697.57 9.73 NI NI 714.68 7.33 693.47 10.92 684.01 13.74 683.70 17.16 708.38 9.38 686.03 10.75 -- -- -- -- 689.89 9.91 682.99 9.88 684.23 9.93 690.22 7.21 10/24/12 719.13 22.11 758.49 28.16 686.03 16.75 684.19 20.40 681.56 17.81 680.33 14.16 693.62 13.68 NI NI 714.25 7.76 691.75 12.64 683.46 14.29 683.26 17.60 708.06 9.70 684.76 12.02 -- -- -- -- 688.57 11.23 682.30 10.57 683.80 10.36 688.85 8.58 04/30/13 721.96 19.28 757.43 29.22 688.40 14.38 685.82 18.77 681.48 17.89 681.14 13.35 697.80 9.50 -- -- 715.45 6.56 695.50 8.89 685.48 12.27 684.51 16.35 708.65 9.11 687.18 9.60 -- -- -- -- 690.91 8.89 686.58 6.29 684.75 9.41 691.61 5.82 09/12/13 721.66 19.58 758.54 28.11 686.44 16.34 684.83 19.76 682.06 17.31 680.57 13.92 -- -- 695.29 11.96 713.70 8.31 691.87 12.52 683.88 13.87 683.42 17.44 708.50 9.26 685.57 11.21 -- -- -- -- 688.14 11.66 682.23 10.64 683.67 10.49 688.50 8.93 04/23/14 723.00 18.24 761.60 25.05 689.63 13.15 686.51 18.08 683.17 16.20 681.44 13.05 -- -- 699.98 7.27 715.64 6.37 695.43 8.96 684.59 13.16 684.08 16.78 709.05 8.71 687.80 8.98 -- -- -- -- 690.51 9.29 685.60 7.27 684.72 9.44 691.72 5.71 10/03/14 717.90 23.34 755.73 30.92 685.67 17.11 683.70 20.89 681.26 18.11 679.98 14.51 -- -- 690.94 16.31 711.57 10.44 689.30 15.09 682.64 15.11 683.42 17.44 707.75 10.01 683.76 13.02 -- -- -- -- 687.04 12.76 681.46 11.41 682.42 11.74 684.80 12.63 04/14/15 720.64 20.60 756.79 29.86 688.38 14.40 684.97 19.62 683.23 16.14 680.83 13.66 -- -- 695.82 11.43 715.58 6.43 693.89 10.50 684.04 13.71 683.63 17.23 708.57 9.19 686.13 10.65 -- -- -- -- 688.92 10.88 684.52 8.35 684.38 9.78 690.08 7.35 10/05/15 723.23 18.01 -- -- 687.14 15.64 684.80 19.79 682.61 16.76 681.11 13.38 -- -- 690.94 16.31 716.01 6.00 691.91 12.48 683.80 13.95 683.35 17.51 708.24 9.52 685.62 11.16 -- -- -- -- 688.98 10.82 685.98 6.89 684.19 9.97 689.43 8.00 04/19/16 721.94 19.30 759.55 27.10 687.44 15.34 685.77 18.82 683.21 16.16 680.97 13.52 -- -- 698.83 8.42 715.49 6.52 693.70 10.69 684.37 13.38 683.66 17.20 708.33 9.43 686.83 9.95 -- -- -- -- 689.03 10.77 -- -- -- -- -- -- 09/26/16 721.03 20.21 -- -- 686.88 15.90 684.54 20.05 682.70 16.67 680.36 14.13 -- -- 692.57 14.68 715.53 6.48 690.15 14.24 683.66 14.09 683.61 17.25 708.21 9.55 685.10 11.68 -- -- -- -- 687.81 11.99 681.41 11.46 683.96 10.20 686.38 11.05 03/21 /17 -- -- -- -- 686.40 16.38 685.21 19.38 -- -- -- -- -- -- 695.11 12.14 -- -- 692.10 12.29 683.43 14.32 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 04/25/17 722.07 19.17 <757.30 >TOP 697.36 5.42 687.31 17.28 684.33 15.04 683.67 10.82 -- -- 696.42 10.83 716.84 5.17 699.09 5.30 689.44 8.31 687.18 13.68 708.93 8.83 689.14 7.64 -- -- -- -- 693.52 6.28 687.75 5.12 688.56 5.60 693.84 3.59 10/16/17 720.11 21.13 <757.06 >29.60 685.44 17.34 683.87 20.72 682.03 17.34 680.13 14.36 -- -- 691.91 15.34 715.07 6.94 689.70 14.69 682.49 15.26 682.34 18.52 708.10 9.66 684.44 12.34 -- -- -- -- 687.72 12.08 681.02 11.85 683.13 11.03 686.30 11.13 04/16/18 722.80 18.44 755.05 31.60 689.77 13.01 686.14 18.45 683.76 15.61 681.81 12.68 -- -- 696.74 10.51 716.60 5.41 688.81 15.58 685.69 12.06 685.18 15.68 708.85 8.91 687.64 9.14 -- -- -- -- 691.56 8.24 687.60 5.27 685.64 8.52 692.31 5.12 10/16/18 723.27 17.97 754.04 32.61 687.43 15.35 685.50 19.09 683.74 15.63 681.25 13.24 693.32 13.98 692.94 14.31 715.82 6.19 694.88 9.51 683.96 13.79 683.48 17.38 708.55 9.21 686.74 10.04 -- -- -- -- 690.16 9.64 685.38 7.49 684.77 9.39 691.62 5.81 04/08/19 723.66 17.58 763.10 23.55 688.59 14.19 686.68 17.91 684.88 14.49 681.92 12.57 693.32 13.98 701.04 6.21 716.39 5.62 694.83 9.56 683.94 13.81 683.86 17.00 709.35 8.41 688.24 8.54 -- -- -- -- 689.83 9.97 686.89 5.98 684.95 9.21 691.66 5.77 10/07/19 720.82 20.42 758.35 28.30 685.40 17.38 684.44 20.15 682.52 16.85 680.35 14.14 -- -- 691.54 15.71 713.26 8.75 690.00 14.39 682.15 15.60 681.98 18.88 708.16 9.60 684.15 12.63 -- -- -- -- 687.87 13.09 683.16 9.71 682.46 11.70 686.68 10.75 04/20/20 722.86 18.38 763.04 23.61 686.92 15.86 686.13 18.46 683.99 15.38 681.37 13.12 -- -- 699.35 7.90 716.00 6.01 693.36 11.03 683.44 14.31 683.46 17.40 708.86 8.90 686.27 10.51 -- -- -- -- 689.68 11.28 685.17 7.70 683.95 10.21 690.08 7.35 10/13/20 724.25 16.99 761.86 24.79 687.35 15.43 685.87 18.72 683.53 15.84 681.36 13.13 -- -- 696.61 10.64 715.06 6.95 693.95 10.44 683.78 13.97 683.61 17.25 708.85 8.91 686.35 10.43 686.22 17.56 686.23 15.40 691.36 9.60 686.49 6.38 684.67 9.49 690.83 6.60 04/27/21 723.49 17.75 768.78 17.87 687.39 15.39 686.04 18.55 684.12 15.25 681.34 13.15 701.62 5.68 700.72 6.53 716.02 5.99 693.51 10.88 683.86 13.89 683.50 17.36 708.91 8.85 686.74 10.04 686.63 17.15 686.32 15.31 689.64 11.32 684.45 8.42 684.03 10.13 690.23 7.20 10/12/21 722.58 18.66 761.45 25.20 685.70 17.08 684.72 19.87 682.72 16.65 680.55 13.94 695.82 11.48 695.13 12.12 715.51 6.50 691.21 13.18 682.73 15.02 682.82 18.04 708.27 9.49 684.98 11.80 684.33 19.45 684.96 16.67 688.38 12.58 683.16 9.71 683.35 10.81 688.54 8.89 04/19/22 723.91 17.33 764.75 21.90 690.00 12.78 686.24 18.35 683.82 15.55 681.85 12.64 700.32 6.98 699.30 7.95 716.71 5.30 697.14 7.25 685.65 12.10 684.51 16.35 708.76 9.00 687.82 8.96 687.80 15.98 687.43 14.20 692.47 8.49 687.18 5.69 685.93 8.23 693.35 4.08 MEAN 721.70 19.57 752.60 25.61 685.22 15.45 681.76 19.47 679.13 16.05 681.08 13.41 695.07 10.15 695.85 11.40 712.29 6.87 690.71 11.54 679.21 13.70 679.96 17.24 704.38 9.44 686.15 10.64 686.03 17.78 686.19 15.47 689.77 10.27 684.22 8.65 684.31 9.85 689.72 7.71 MAXIMUM 724.59 23.83 768.78 32.61 749.56 19.02 743.48 21.77 684.88 18.11 683.67 14.51 701.62 16.05 701.04 16.31 716.84 10.44 699.09 15.58 689.44 15.86 687.18 19.31 709.35 10.15 689.14 13.02 687.80 19.45 687.43 16.67 693.52 13.09 687.75 11.85 688.56 11.74 693.84 12.63 MINIMUM 717.41 16.71 736.11 15.58 675.00 5.42 668.89 17.28 670.91 13.26 679.98 10.82 688.64 4.98 690.94 6.21 705.51 5.17 683.11 5.30 668.22 8.31 668.88 13.68 696.94 8.41 683.76 7.64 684.33 15.98 684.96 14.20 687.04 6.28 681.02 5.12 682.42 5.60 684.80 3.59 Notes: 1. ft AMSL = feet above mean sea level. 2. -- = not measured or no data 3. TOC = top of casing 4. NI = not installed 5. MW = monitoring well, GW = groundwater, DTW = depth to water 6. TOC and Water Elevation Data for dates prior to April 2017 from historical S&ME, Inc. Ground and Surface Water Monitoring Reports. 7. Well TOC survey conducted 2013-2014 by S&ME, Inc. for more accurate elevations. ►►%I) GOLDER 1 of 1 November 2022 TABLE 3 Summary of Estimated Horizontal Flow Velocities White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina GL19131339.300 April 2017 Gradient Flow Gradient Gradient Segment Horizontal Effective Porosity Hydraulic Velocity Calculation Direction Segment Length Elevations Gradient (ne) Conductivity (VgW, feet/year) Segment (feet) (i, feet) (K, cm/sec) feet i West -Northwest 1835 -----------00----------- 0.0272 0.02 2.61 E-04 368 i 2 North -Northwest 2387 ----------- 690----------- 0.0251 0.02 2.61 E-04 339 Average i Average VFW 0.0262 354 April 2022 Gradient Flow Gradient Gradient Segment Horizontal Effective Porosity Hydraulic Velocity Calculation Direction Segment Length Elevations Gradient (ne) Conductivity (VgW, feet/year) Segment (feet) (feet) (i, feet) (K, cm/sec) i 3 West -Northwest 2575 -----------690----------- 0.0233 0.02 2.61 E-04 315 i4 North -Northwest 1421 ----------690----------- 0.0211 0.02 2.61E-04 285 Average i Average VFW 0.0222 300 Notes: 1. Horizontal velocities based on the modified Darcy equation VgW = Ki/ne 2. Values for K were based on the geometric mean of slug test values from all site monitoring wells as prepared by BPA Environmental & Engineering Inc. 3. The effective porosity for saprolite was used in velocity calculations. 4. cm/sec = centimeters per second ►N%%I) GOL❑ER 1of1 November 2022 TABLE 4 GL19131339.300 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method SWS Assessment Reporting Sample Practical Upgradient Monitoring Wells Compliance Downgradient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constituent Detection Reporting Blanks Units Date Quantitation Limit Well Limit Limit MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 Antimony ug/L 03/01/99 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND IMAC = 1 ug/L ug/L 09/01/99 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 6 ug/L ug/L 03/01/00 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 30 ND ND 0.54 ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01 /06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 30 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.68 -- 6 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.68 -- 6 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.68 -- 6 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.073 -- 6 ND ND ND ND ND -- ND 0.211 J ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.22 -- 6 ND ND ND ND ND -- ND 0.242 J ND 0.248 J ND ND -- -- -- -- -- ND ug/L 08/02/10 0.22 -- 6 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.22 -- 6 ND ND 0.224 J ND ND -- ND 0.374 J ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.22 -- 6 ND ND 0.365 J ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.22 -- 6 ND ND 0.276 J ND ND -- ND 0.384 J ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.22 -- 6 ND ND 0.527 J ND 0.862 J -- 0.232 J ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 0.22 -- 6 ND ND ND ND ND -- ND ND 0.716 J ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.22 -- 6 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.22 -- 6 ND ND ND ND ND ND ND 0.345 J ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.22 -- 6 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.22 -- 6 ND ND 0.296 J ND 0.293 J ND ND ND ND ND ND ND ND ND 0.316 J 0.296 J 0.532 J ND ug/L 04/14/15 0.22 -- 6 ND ND 0.331 J 0.614 J ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.22 -- 6 0.22 -- 0.418 J ND 0.344 J ND ND ND ND ND ND ND ND ND 0.456 J ND 2.43 J ND ug/L 04/20/16 0.22 -- 6 ND 0.22 ND ND 0.282 J ND 0.239 J ND ND ND ND ND ND ND ND ND 0.22 ND ug/L 09/26/16 0.22 -- 6 ND -- ND ND ND ND ND 0.244 J ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.37 -- 6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.37 -- 6 ND -- ND ND ND ND ND 0.471 J ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.37 -- 6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 1.85 5.00 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 1.85 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.74 2.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.74 2.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.74 2.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.74 2.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.74 2.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.74 2.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Arsenic ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 10 ug/L ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 10 ug/L ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01 /06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND 2.5 J -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND 2.8 J ND ND ND -- ND -- ND ND 2.4 J -- -- -- -- -- -- ND ug/L 04/29/08 2.0 -- 10 2.4 J 2.9 J ND ND ND -- 2.2 J ND 3.1 J ND ND ND -- -- -- -- -- ND ug/L 12/01/08 2.8 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 2.8 -- 10 ND 3.1 B ND 3.8 B ND -- ND 3.3 B ND ND ND 4.9 B -- -- -- -- -- -- ug/L 10/16/09 2.8 -- 10 ND 3.81 J ND ND ND -- 3.4 J ND ND 3.95 J ND -- -- -- -- -- -- ND ug/L 04/28/10 2.8 -- 10 ND 4.6 J ND ND 4.79 J -- ND ND ND 5.22 J ND ND -- -- -- -- -- ND ug/L 08/02/10 2.8 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 4.07 J ND ND ND ug/L 10/11/10 2.8 -- 10 ND ND ND ND ND -- ND 5.22 J ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 2.8 -- 10 ND 3.08 B ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 2.8 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND 4.29 J ND ND ND ug/L 04/17/12 2.8 -- 10 3.73 J 3.86 J 3.06 J ND ND -- 6.84 J ND ND 6.24 J 10.1 B ND -- -- -- -- -- -- ug/L 10/25/12 2.8 -- 10 ND 2.87 J ND ND ND -- 3.10 J 8.68 J 7.97 J 4.09 J ND 6.04 J 7.21 J 3.53 J 6.54 J ND ND -- ug/L 05/02/13 2.8 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 5.4 -- 10 ND ND ND 5.78 J ND ND ND ND ND ND ND ND ND ND 5.98 J ND ND ND ug/L 04/24/14 5.4 -- 10 ND 6.51 J ND ND ND -- ND ND ND ND 7.05 J 5.40 ND ND ND ND ND ND ug/L 10/06/14 5.4 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 6.8 -- 10 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 6.8 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 6.8 -- 10 ND 6.80 11.6 ND ND ND ND ND ND ND ND ND ND ND ND ND 6.80 ND ug/L 09/26/16 6.8 -- 10 ND -- ND ND ND 9.78 J ND 9.30 J 7.45 J ND ND ND ND ND ND ND ND ND ug/L 04/25/17 6.8 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 6.8 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 6.8 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 7.6 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 7.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 7.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 7.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 7.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 7.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 7.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/19/22 7.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Barium ug/L 03/01/99 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 700 ug/L ug/L 09/01/99 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 2000 ug/L ug/L 03/01/00 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND 600 -- ND -- -- -- ND ug/L 10/01/05 -- -- 500 ND ND ND ND ND -- ND 560 ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 500 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- 120 14.4 J 244 60.3 J 218 -- 131 292 26.4 J 16.5 J 74.6 J -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- 130 10.9 J 235 44.3 J 188 B -- 139 B -- 77.7 J 12.8 J 75.0 J -- -- -- -- -- -- -- ug/L 04/29/08 0.2 -- 100 107 13.0 J 241 50.4 J 244 -- 70.4 J 69.8 J 7.1 J 10.4 J 79.7 J 532 -- -- -- -- -- ND ug/L 12/01/08 1.0 -- 100 127 12.7 J 296 46.2 J 194 -- 110 486 17.9 J 11.1 J 86.8 J 878 -- -- -- -- -- ND ug/L 12/05/08 1.0 -- 100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ug/L 04/17/09 4.2 -- 100 132 14.3 J 245 74.4 J ND -- 71.6 J 37.1 J 13.9 J 10.2 J 87.6 J 488 -- -- -- -- -- ND ug/L 10/16/09 1.0 -- 100 119 12.5 J 203 41.2 J 203 -- 124 410 90.7 J 10.2 J 79.2 J -- -- -- -- -- -- ND ug/L 04/28/10 1.0 -- 100 112 17.1 J 309 63.1 J 183 -- 89.0 J 339 21.7 J 11.5 J 87.7 J 386 -- -- -- -- -- ND ug/L 08/02/10 1.0 -- 100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 144 228 178 ND ug/L 10/11/10 1.0 -- 100 87.9 J 15.8 J 225 40.9 J 164 -- 114 356 14.8 J 9.15 J 74.3 J 473 -- -- 140 301 164 ND ug/L 05/09/11 1.0 -- 100 108 12.3 J 415 53.5 J 207 -- 91.4 J 104 13.1 J 10.6 J 105 397 -- -- -- -- -- ND ug/L 10/12/11 1.0 -- 100 115 17.4 J 429 45.2 J 191 -- 106 431 26.8 J 9.50 J 115 430 202 78.4 114 78.4 J 128 ND ug/L 04/17/12 1.0 -- 100 112 14.1 J 329 80.1 J 198 -- 89.6 J 105 22.4 J 9.45 J 123 396 -- -- -- -- -- ND ug/L 10/25/12 1.0 -- 100 104 18.1 J 422 55.7 J 187 -- 84.6 J 394 8.92 J 94.4 J 118 448 169 90.4 J 128 180 134 ND ug/L 05/02/13 1.0 -- 100 120 20.5 J 253 57.3 J 218 -- 88.4 J 26.1 J 21.9 9.59 J 131 341 167 91.8 J 117 150 123 ND ug/L 09/24/13 1.0 -- 100 85.9 J 14.6 J 355 55.0 J 192 186 71.5 J 328 42.7 J 9.31 J 122 396 157 93.8 J 125 181 140 ND ug/L 04/24/14 1.0 -- 100 98.7 J 17.3 J 261 58.6 J 218 -- 53.4 J 22.6 J 22.3 J 9.61 J 143 171 171 37.6 J 109 221 112 ND ug/L 10/06/14 1.0 -- 100 88.3 J 18.5 J 446 53.8 J 197 182 94.0 J 382 159 11.2 J 142 384 156 109 112 222 266 ND ug/L 04/14/15 1.0 -- 100 105 19.7 J 376 62.1 J 265 216 109 90.1 J 71.7 J 9.99 J 116 -- 179 110 108 333 139 ND ug/L 10/07/15 1.0 -- 100 93.3 J -- 424 221 201 187 102 269 87.0 13.4 J 150 221 178 110 69.0 J ND 59.7 J ND ug/L 04/20/16 1.0 -- 100 91.3 J 13.6 J 351 51.1 J 230 166 149 96.6 J 124 11.0 J 159 396 172 63.9 J ND 209 153 ND ug/L 09/26/16 1.0 -- 100 85.1 J -- 346 50.9 J 189 177 204 205 186 11.9 J 146 379 175 108 114 219 182 ND ug/L 04/25/17 1.0 -- 100 96.6 J 14.7 J 386 55.7 J 220 170 122 25.2 J 13.6 J 12.0 J 176 100 172 98.5 J 112 107 38.8 J ND ug/L 10/17/17 1.0 -- 100 94.1 J -- 426 51.6 J 202 193 195 433 194 21.2 J 170 273 163 109 98.4 J 303 166 ND ug/L 04/16/18 1.0 -- 100 82.7 J 26.5 J 415 55.5 J 214 192 76.4 J 135 21.3 J 28.2 J 190 191 163 94.0 J 114 362 36.0 J ND ug/L 10/16/18 1.1 10 -- 94.5 -- 365 57.8 174 190 131 244 21.6 25.9 167 194 67.8 56.0 117 119 55.8 ND ug/L 04/12/19 1.1 10 -- 95.9 17.0 288 57.7 257 166 101 46.0 18.3 28.4 180 104 177 78.9 233 351 53.2 ND ug/L 10/07/19 1.1 10 -- 89.0 13.3 404 52.9 170 199 245 331 190 32.2 192 299 171 98.0 165 418 126 ND ug/L 04/20/20 1.1 10 -- 98.9 16.8 312 68.3 188 160 124 148 55.9 36.4 181 279 155 66.8 91.5 295 110 ND ug/L 10/13/20 1.1 10 -- 112 12.5 375 81.2 176 204 71.5 183 32.2 35.0 195 125 175 98.4 118 275 72.2 ND ug/L 04/28/21 1.1 10 -- 88.6 10.7 317 90.1 162 127 72.4 59.2 34.9 38.0 192 233 171 63.3 93.7 430 88.9 ND ug/L 10/14/21 1.1 10 -- 89.8 10.9 385 124 161 226 86.4 239 152 34.0 194 72.0 159 99.1 125 508 97.9 ND u /L 04/19/22 1.1 10 -- 97.9 10.8 293 79.4 140 142 39.9 25.9 25.2 33.7 171 57.0 158 68.6 111 225 38.9 ND Beryllium ug/L 03/01/99 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND IMAC = 4 ug/L ug/L 09/01/99 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 4 ug/L ug/L 03/01/00 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01 /06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.7 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.08 -- 1 ND ND ND ND ND -- ND ND ND ND ND 0.46 J -- -- -- -- -- ND ug/L 10/16/09 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.10 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.10 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.10 -- 1 ND 0.102 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.10 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.10 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.10 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.10 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.13 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.13 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.16 1.00 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.16 1.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.16 1.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.16 1.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.16 1.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.16 1.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.16 1.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.16 1.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ►%%I) GOLDER 1 of 14 November 2022 TABLE 4 GL19131339.300 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method SWS Assessment Reporting Sample Practical Upgradient Monitoring Wells Compliance Downgradient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constituent Detection Reporting Blanks Units Date Quantitation Limit Well Limit Limit MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 Cadmium ug/L 03/01/99 -- -- 1 ND ND 3 ND ND -- ND 3 ND ND ND ND -- ND -- -- -- ND NC 2L = 2 ug/L ug/L 09/01/99 -- -- 1 ND ND 2 ND ND -- ND 2 ND ND 1 -- -- -- -- -- -- ND EPA MCL = 5 ug/L ug/L 03/01/00 -- -- 1 ND ND 2 ND 4 -- 2 ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 1 ND ND 2 ND 1 -- ND 2 ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 1 ND ND 1.8 ND 5.7 -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 1 ND ND 1.9 1.3 5.6 -- 1.5 6.1 1.0 1.3 1.5 -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 1 ND ND 1.0 1.0 2.1 -- 1.9 2.1 ND ND 1.0 ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 1 ND ND ND ND ND -- ND 4.5 ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 1 ND ND ND ND 2.0 -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 1 ND ND 1.1 ND 4.7 -- ND 3.6 ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 1 ND 1.3 1.2 1.0 1.6 -- 1.4 1.8 ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.50 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.09 -- 1 ND 0.15 J 0.26 J 0.17 J 0.24 J -- ND 0.26 J 0.14 J 0.21 J 0.26 J 0.27 J -- -- -- -- -- ND ug/L 10/16/09 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.36 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1.78 ND ND ND ug/L 10/11/10 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- 4.79 ND ND ND ug/L 05/09/11 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND 3.52 ND ND ND ug/L 04/17/12 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND 1.62 ND ND ND ug/L 05/02/13 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND 8.42 ND ND ND ug/L 09/24/13 0.36 -- 1 ND ND ND ND ND ND ND ND ND ND ND 0.644 J ND ND 2.00 ND ND ND ug/L 04/24/14 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND 3.01 ND ND ND ND ug/L 10/06/14 0.36 -- 1 ND 0.842 J ND ND ND ND ND 0.43 J ND ND 0.502 J ND ND 1.62 ND ND ND ND ug/L 04/14/15 0.36 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND 4.92 ND ND ND ug/L 10/07/15 0.36 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND 3.45 ND ND ND ug/L 04/20/16 0.36 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.36 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND 0.375 ND ND ND ND ug/L 04/25/17 0.36 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND 8.65 ND ND ND ug/L 10/17/17 0.36 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.36 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND 0.933 J 3.95 ND ND ND ug/L 10/16/18 0.36 1.00 -- ND -- ND ND ND ND ND ND ND ND ND ND ND 0.557 J 6.82 ND ND ND ug/L 04/12/19 0.36 1.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND 0.368 B 15.0 ND ND 0.361 ug/L 10/07/19 0.36 1.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.36 1.00 -- ND ND ND ND ND ND ND ND ND ND ND 0.593 J ND 0.741 J 4.96 ND ND ND ug/L 10/13/20 0.36 1.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND 4.54 ND ND ND ug/L 04/28/21 0.36 1.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND 0.548 J 7.70 ND ND ND ug/L 10/14/21 0.36 1.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1.75 ND ND ND ug/L 04/19/22 0.36 1.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND 9.55 ND ND ND Chromium ug/L 03/01/99 -- -- 10 ND ND 47 ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 10 ug/L ug/L 09/01/99 -- -- 10 ND ND 20 ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 100 ug/L ug/L 03/01/00 -- -- 10 ND ND 54 ND ND -- 12 ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 10 ND ND 21 ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 10 ND ND 32 ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND 10 ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND 3.0 J ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 2.0 -- 10 ND 6.9 J ND ND ND -- ND 6.7 J ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 1.0 -- 10 ND 3.3 J ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/05/08 1.0 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ug/L 04/17/09 0.7 -- 10 ND 6.9 J 2.4 J 1.9 J 3.6 J -- 2.8 J 0.7 J 0.9 J 0.8 J 1.6 J 24.7 -- -- -- -- -- ND ug/L 10/16/09 1.0 -- 10 ND 3.55 J 3.69 J ND 2.29 J -- 1.51 J 3.77 J 5.25 J ND ND -- -- -- -- -- -- ND ug/L 04/28/10 1.0 -- 10 ND 2.24 J 2.4 J ND 2.24 J -- 1.93 J ND 1.05 J ND ND ND -- -- -- -- -- ND ug/L 08/02/10 1.0 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 2.06 J ND ND ND ug/L 10/11/10 1.0 -- 10 ND 3.15 J ND ND 1.67 J -- ND ND ND 1.45 J ND ND -- -- 6.52 J 7.86 J ND ND ug/L 05/09/11 1.0 -- 10 ND 4.26 J 4.93 J ND 1.87 J -- ND ND 1.04 J ND 1.42 J 1.17 J -- -- -- -- -- ND ug/L 10/12/11 1.0 -- 10 1.27 J 4.88 J 6.87 J 1.64 J 2.22 J -- 3.01 J 6.47 J 1.31 J ND 3.17 J 2.19 J 7.42 J 4.13 J 1.89 J 3.44 J 1.47 J ND ug/L 04/17/12 1.0 -- 10 ND 3.75 J 6.80 J 2.15 J 3.16 J -- 2.42 J 1.22 J 1.12 J ND 2.71 J 1.62 J -- -- -- -- -- ND ug/L 10/25/12 1.0 -- 10 ND 2.23 J 2.85 J ND 2.15 J -- 1.13 J 3.16 J ND ND 1.04 J ND J ND 1.90 J 2.52 J ND ND ND ug/L 05/02/13 1.4 -- 10 1.74 J 2.19 J ND ND 5.55 J -- 2.02 J 1.59 J 2.82 J ND 2.51 J ND ND 2.39 J 3.75 J ND ND ND ug/L 09/24/13 1.4 -- 10 ND ND 2.92 J ND 3.99 J 2.03 J ND 1.49 J ND ND ND 3.97 J 2.63 J ND ND 3.98 J ND ND ug/L 04/24/14 1.4 -- 10 ND 1.51 J 2.28 J ND 2.77 J -- 1.60 J ND 2.09 J ND 2.63 J 3.34 J ND 2.35 J 1.88 J ND ND ND ug/L 10/06/14 1.4 -- 10 ND ND 4.79 J ND 1.57 J 1.94 J ND 3.92 J ND ND 1.71 J 2.17 J ND 2.67 J 4.16 J 1.83 J 1.93 J ND ug/L 04/14/15 1.4 -- 10 ND ND 3.88 J ND 7.10 J ND 1.83 J ND 1.60 J ND ND -- ND ND ND ND 2.83 J ND ug/L 10/07/15 1.4 -- 10 ND -- 3.16 J 3.17 J ND ND 5.02 J 2.47 J ND ND 2.10 J 3.17 J ND ND 2.19 J ND 5.87 J ND ug/L 04/20/16 1.4 -- 10 ND ND ND ND 3.14 J ND 1.82 J ND ND ND ND 5.50 J ND ND ND ND 9.98 J ND ug/L 09/26/16 1.4 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 1.4 -- 10 ND ND ND ND 2.04 J ND 8.77 J 2.76 J 1.91 J ND ND 5.21 J ND 2.13 J 9.36 J ND 3.26 J ND ug/L 10/17/17 1.4 -- 10 ND -- 3.73 J ND 1.68 J 2.05 J 2.82 J 2.40 J ND ND 2.87 J ND 1.57 J 2.38 J 2.16 J ND 1.60 J ND ug/L 04/16/18 1.4 -- 10 ND 1.91 J 2.34 J ND ND ND 2.71 J ND 1.40 J ND ND 2.08 J ND ND 2.63 J ND ND ND ug/L 10/16/18 1.4 10 -- ND -- 3.37 J ND 3.00 J 2.66 J 2.27 J ND 2.14 J ND 3.53 J 1.60 J 2.15 J 2.39 J 3.11 J ND ND ND ug/L 04/12/19 1.4 10 -- ND ND 3.07 J ND 2.57 J 2.75 J 3.17 J ND 2.55 J ND 3.71 J 1.87 J 1.57 J ND 3.38 J ND ND ND ug/L 10/07/19 1.4 10 -- ND ND 2.82 J ND 2.13 J 2.30 J 2.35 J 3.13 J ND ND 2.99 J ND ND ND ND ND ND ND ug/L 04/20/20 1.4 10 -- ND ND 4.21 J ND 4.38 J ND 1.56 J ND ND ND ND 1.75 J ND ND ND ND ND ND ug/L 10/13/20 1.4 10 -- 2.51 J ND 5.83 J 2.95 J 3.71 J 3.13 J 2.70 J 3.73 J 2.60 J 2.49 J 5.04 J 3.01 J 2.68 J 2.38 J 3.36 J 1.97 J 2.26 J ND ug/L 04/28/21 1.4 10 -- ND 2.26 J 4.92 J ND 2.24 J ND ND ND ND ND ND ND ND ND 2.18 J ND ND ND ug/L 10/14/21 1.4 10 -- ND ND 6.72 J ND 2.78 J ND 1.41 J 3.26 J ND 1.64 J ND ND ND ND 2.66 J ND ND ND u /L 04/19/22 1.4 10 -- ND ND 5.61 J ND 3.10 J ND 1.64 J ND 1.43 J ND 1.47 J ND ND ND 1.91 J ND ND ND Cobalt ug/L 03/01/99 -- -- 10 ND ND 36 ND 13 -- 18 27 ND ND ND ND -- ND -- -- -- ND NC 2L = 1 ug/L ug/L 09/01/99 -- -- 10 ND ND 18 ND 10 -- ND 13 ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 10 ND ND 29 ND 45 -- 46 ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 10 ND ND 41 ND 14 -- ND 12 ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 10 ND ND 19 ND 34 -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND 46 ND 28 -- 11 39 ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND 10 ND 18 -- 1.2 15 ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND 29 ND 10 -- ND 36 ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND 14 61 -- 33 ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND 13 ND 39 -- 13 29 ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND 28 ND 72 -- 15 20 ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND 17 ND 25 -- 11 15 ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 10 ND ND 24 ND 40 -- ND 25 ND ND ND 33 -- ND -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND 60 ND 23 -- 13 48 ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND 72.3 ND 31.8 -- 12.8 42.7 ND ND ND -- -- -- -- -- -- ND ug L 04/12/07 -- -- -- N D N D N D . -- 12.3 24.5 ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- ND ND 62.0 2.0 21.7 -- 17.5 -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 2.0 -- 10 ND ND 4.3 J ND 26.0 -- 2.1 J 5.3 J ND ND ND 49.2 -- -- -- -- -- ND ug/L 12/01/08 1.1 -- 10 ND ND 51.4 ND 25.1 -- 4.4 J 42.4 1.3 J ND ND 22.4 -- -- -- -- -- ND ug/L 12/05/08 1.1 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ug/L 04/17/09 0.6 -- 10 ND ND ND ND 21.6 -- 4.1 J 1.1 J ND ND ND 34.4 -- -- -- -- -- ND ug/L 10/16/09 1.1 -- 10 ND ND 36.5 ND 25.2 -- 20.1 34.5 2.3 J ND ND -- -- -- -- -- -- ND ug/L 04/28/10 1.1 -- 10 ND ND ND -- 32.3 25.8 2.11 J ND 1.46 J 8.21 J -- -- -- -- -- ND ug/L 08/02/10 1.1 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 15.5 3.12 J 4.55 J ND ug/L 10/11/10 1.1 -- 10 ND ND 35.8 ND 16.1 -- 23.2 27.7 ND ND ND 6.73 J -- -- 7.34 J 13.0 1.48 ND ug/L 05/09/11 1.1 -- 10 ND ND 22.4 ND 21.2 -- 5.86 J 4.91 J ND ND ND 8.16 J -- -- -- -- -- ND ug/L 10/12/11 1.1 -- 10 ND ND 59.4 ND 18.5 -- 9.65 J 40.7 ND ND 1.88 J 4.74 J 7.05 J 6.38 J 7.7 J 1.45 J 5.54 J ND ug/L 04/17/12 1.1 -- 10 ND ND 23.1 ND 14.1 -- 7.28 J 6.23 J ND ND 1.77 J 6.20 J -- -- -- -- -- ND ug/L 10/25/12 1.1 -- 10 ND ND 44.2 ND 14.6 -- 1.33 J 35.3 ND ND 1.25 J 1.85 J 2.31 J 4.48 J 10.3 1.92 J ND ND ug/L 05/02/13 1.1 -- 10 ND ND 17.0 ND 17.1 -- 6.58 J ND ND ND ND 4.88 J 1.70 J 2.57 J 1.10 2.39 J ND ND ug/L 09/24/13 1.1 -- 10 ND ND 45.1 ND 14.0 4.20 J 6.64 J 23.1 2.56 J ND 2.32 J 6.01 J 3.04 J 4.31 J 16.6 4.27 J 6.75 J ND ug/L 04/24/14 1.1 -- 10 ND ND 20.5 ND 14.4 -- 6.06 J ND ND ND 1.71 J 6.81 J 2.66 J 11.4 1.72 J 2.50 J 1.48 J ND ug/L 10/06/14 1.1 -- 10 ND ND 58.5 ND 12.3 1.33 J 11.0 29.3 1.63 J ND 1.87 J 1.65 J 1.42 J 4.61 J 11.2 2.76 J 4.22 J ND ug/L 04/14/15 1.1 -- 10 ND ND 26.8 ND 18.5 1.82 J 12.2 5.11 J ND ND 2.03 J -- 2.09 J 3.32 J 20.8 3.40 J 1.10 J ND ug/L 10/07/15 1.1 -- 10 ND -- 42.7 9.65 J 12.9 ND 3.46 J 21.2 3.51 ND 1.75 J 9.65 J 2.22 J 6.64 J 19.9 2.01 J ND ND ug/L 04/20/16 1.1 -- 10 ND ND 35.5 ND 11.2 ND 16.4 5.77 J ND ND 2.42 J 7.80 J 1.42 J 18.7 30.7 2.10 J 1.77 J ND ug/L 09/26/16 1.1 -- 10 ND -- 50.2 ND 10.6 ND 15.4 26.2 1.60 J ND 2.29 J 3.05 J 1.35 J 3.97 43.4 2.88 J 1.50 J ND ug/L 04/25/17 1.1 -- 10 ND ND 20.3 ND 12.4 ND 4.75 J ND ND ND 3.30 J 4.19 J 1.41 J 2.71 J 2.39 J 1.39 J ND ND ug/L 10/17/17 1.1 -- 10 ND -- 48.6 1.39 J 9.06 J ND 15.1 33.8 2.57 J ND 4.20 J 1.65 J 4.41 J 4.63 J 21.4 3.30 J 2.08 J ND ug/L 04/16/18 1.1 -- 10 ND 1.53 J 29.9 ND 10.6 ND 6.18 J 12.9 ND ND 4.20 J 8.52 J 2.82 J 2.26 J 16.2 4.16 J ND ND ug/L 10/16/18 1.4 10 -- ND -- 20.2 ND 7.50 J ND 8.87 J 21.5 ND ND 4.19 J 2.00 J 3.16 J 1.49 J 14.0 2.37 J ND ND ug/L 04/12/19 1.4 10 -- ND ND 27.3 ND 12.1 ND 3.65 J ND ND ND 6.20 J 3.19 J 2.77 J 5.42 J 8.20 J 3.16 J ND ND ug/L 10/07/19 1.4 10 -- ND ND 36.8 ND 6.09 J ND 20.6 17.1 2.51 J ND 4.56 J 3.54 J 1.72 J 3.11 J 68.3 3.38 J ND ND ug/L 04/20/20 1.4 10 -- ND ND 21.0 ND 5.62 J ND 8.99 J 15.3 ND ND 4.17 J 2.19 J 1.62 J ND 24.8 1.55 J ND ND ug/L 10/13/20 1.4 10 -- ND ND 23.6 ND 5.70 J ND 4.12 J 10.1 ND ND 6.67 J 7.33 J 1.88 J 4.11 J 30.3 1.73 J ND ND ug/L 04/28/21 1.4 10 -- ND ND 26.3 ND 10.3 ND 4.32 J 2.06 J ND ND 6.54 J 5.31 J 1.47 J ND 20.0 3.06 J ND ND ug/L 10/14/21 1.4 10 -- ND ND 34.2 6.76 J 8.48 J ND 3.04 J 14.3 2.17 J ND 5.93 J ND ND ND 45.0 6.26 J ND ND ug/L 04/19/22 1.4 10 -- ND ND 24.7 ND 5.72 J 1.45 J 2.93 J ND ND ND 7.08 J ND 3.08 J 1.43 J 2.90 J 2.11 J ND ND Copper ug/L 03/01/99 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 1000 ug/L ug/L 09/01/99 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 1300 ug/L ug/L 03/01/00 -- -- 200 ND ND 220 ND ND -- 360 ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 200 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- 1.2 J 0.6 5.3 J 2.0 J 0.6 J -- 0.6 0.6 0.6 J 0.6 0.7 J -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- 0.6 1.0 B ND 2.2 B ND -- ND -- 0.8 B ND 2.0 B -- -- -- -- -- -- -- ug/L 04/29/08 0.6 -- 10 4.0 J 2.8 J 8.0 J ND ND -- 4.4 J 7.7 J 4.1 J 2.9 J 2.5 J ND -- -- -- -- -- ND ug/L 12/01/08 1.6 -- 10 ND ND 3.3 J ND ND -- ND ND 1.8 J ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.81 -- 10 ND ND ND ND 3.4 J -- 1.31 J 1.7 J ND 2.17 J ND 13.9 -- -- -- -- -- ND ug/L 10/16/09 1.6 -- 10 ND ND 4.76 J ND 2.31 J -- ND ND 3.91 J 1.95 J ND -- -- -- -- -- -- ND ug/L 04/28/10 1.6 -- 10 ND ND 4.05 J ND 3.42 J -- ND 3.86 J 1.88 J ND ND ND -- -- -- -- -- ND ug/L 08/02/10 1.6 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 11.9 1.66 J ND ND ug/L 10/11/10 1.6 -- 10 ND ND 15.4 ND 2.03 J -- ND ND 1.76 J 1.67 J ND ND -- -- 18.1 72.0 2.35 J ND ug/L 05/09/11 1.6 -- 10 ND ND 17.3 ND 1.79 J -- 2.89 J 2.46 J ND 1.81 J ND ND -- -- -- -- -- ND ug/L 10/12/11 1.6 -- 10 ND ND 9.93 B ND ND -- 1.96 J ND ND 2.54 J ND ND 2.62 J 9.54 9.63 J 7.38 J ND ND ug/L 04/17/12 1.6 -- 10 ND ND 6.67 J ND 2.64 J -- 1.75 J 2.92 J ND 2.02 J ND ND -- -- -- -- -- ND ug/L 10/25/12 1.6 -- 10 ND ND 21.6 ND ND -- 2.46 J ND 1.64 J ND ND ND ND 6.12 J 5.37 J ND ND ND ug/L 05/02/13 1.6 -- 10 ND ND 7.45 J ND ND -- ND 1.62 J ND ND ND ND ND 1.79 J 11.1 ND ND ND ug/L 09/24/13 1.6 -- 10 ND ND 8.78 J ND ND ND ND ND ND 1.69 J ND 1.61 J ND ND 2.56 J ND ND ND ug/L 04/24/14 1.6 -- 10 1.87 J 2.24 J 8.55 J ND 2.14 J -- 4.30 J 2.62 J 2.07 J 3.98 J 2.51 J 2.20 J ND 72.7 6.18 J 3.40 J ND ND ug/L 10/06/14 1.6 -- 10 ND ND 14.4 ND ND ND ND ND ND ND ND ND ND 28.2 1.77 J 4.50 J ND ND ug/L 04/14/15 1.6 -- 10 ND ND 6.09 J ND 5.46 J ND 3.37 J 3.18 J 5.89 J 3.95 J ND -- ND ND 10.9 5.25 J 1.60 ND ug/L 10/07/15 1.6 -- 10 ND -- 13.3 ND ND ND 3.17 J 9.18 J ND ND ND ND ND ND 12.9 ND ND ND ug/L 04/20/16 1.6 -- 10 ND ND ND ND 3.18 J ND ND 2.62 J ND 2.00 J 2.04 J 4.03 J ND 27.0 7.69 J 2.49 J 1.60 ND ug/L 09/26/16 1.6 -- 10 3.10 J -- 5.98 J 3.27 J 2.63 J 3.31 J 2.97 J 4.37 J 5.13 J 3.95 J 8.28 J ND 3.04 J 4.47 4.68 J 3.04 J 3.74 J ND ug/L 04/25/17 1.6 -- 10 2.85 B ND 26.9 ND ND ND 5.38 B 24.4 ND 1.94 B 8.19 B 10.2 ND 5.25 B 14.8 8.76 B 2.56 B 2.00 J ug/L 10/17/17 1.6 -- 10 ND -- 18.1 ND ND ND ND ND ND ND 3.37 J ND ND 2.85 J 2.37 J ND ND ND ug/L 04/16/18 1.6 -- 10 ND ND 14.4 ND ND ND 2.48 J ND ND ND ND ND ND ND 12.3 ND ND ND ug/L 10/16/18 1.6 10 -- ND -- 19.1 ND 3.24 J 3.43 J ND 5.86 J ND ND 10.9 ND 3.60 J 12.8 18.2 1.89 J ND ND ug/L 04/12/19 1.6 10 -- ND ND 4.04 J ND 2.20 J ND 2.49 J 86.0 1.75 J 2.69 J 12.2 4.16 J ND 4.02 J 14.9 ND ND ND ug/L 10/07/19 1.6 10 -- ND ND 10.9 ND 1.98 J ND ND 3.27 J 3.42 J ND 10.1 ND ND 1.92 J 2.78 J ND ND ND ug/L 04/20/20 1.6 10 -- ND ND 14.8 2.86 J 2.44 J 2.78 J 2.24 J 24.6 2.18 J 1.91 J 10.5 ND ND 3.20 J 2.76 J 2.39 J 1.82 J ND ug/L 10/13/20 1.6 10 -- 3.46 J 1.64 J 9.16 J 2.78 J 5.74 J ND 4.39 J 3.14 J 3.64 J ND ND 4.80 J 1.86 J ND 11.3 ND 3.54 J ND ug/L 04/28/21 1.6 10 -- ND ND ND ND ND ND ND 10.3 ND ND ND ND ND ND 2.89 J ND ND ND ug/L 10/14/21 1.6 10 -- ND ND ND 2.02 B ND ND ND ND ND ND ND ND ND ND 5.85 B ND ND 2.62 J u /L 04/19/22 1.6 10 -- ND ND ND ND ND ND ND 15.7 ND ND ND ND ND ND 8.00 J ND ND ND ►%%I) GOLDER 2of14 November 2022 TABLE 4 GL19131339.300 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method SWS Assessment Reporting Sample Practical Upgradient Monitoring Wells Compliance Downgradient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constituent Detection Reporting Blanks Units Date Quantitation Limit Well Limit Limit MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 Lead ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 15 ug/L ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 15 ug/L ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 2.0 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 1.9 -- 10 ND ND ND ND ND -- ND ND ND ND ND 5.3 J -- -- -- -- -- ND ug/L 12/05/08 1.9 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ug/L 04/17/09 1.6 -- 10 ND ND 1.7 J 3.2 J 3.3 J -- 2.5 J ND ND ND 3.1 J 10.5 -- -- -- -- -- ND ug/L 10/16/09 1.9 -- 10 ND ND 17.2 ND ND -- ND ND 5.37 J ND ND -- -- -- -- -- -- ND ug/L 04/28/10 1.9 -- 10 ND ND ND ND ND -- ND 2.41 J ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 1.9 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 1.9 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- 3.42 J ND ND ND ug/L 05/09/11 1.9 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 1.9 -- 10 ND ND ND ND ND -- 1.90 ND 1.90 1.90 ND ND ND 2.37 ND ND ND ND ug/L 04/17/12 1.9 -- 10 ND ND 3.71 J ND 2.28 J -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 1.9 -- 10 ND 2.64 J 3.47 J ND 4.26 J -- 2.11 J ND ND ND ND 3.18 J ND 2.97 J 4.22 J 3.94 J 3.63 J ND ug/L 05/02/13 1.9 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 2.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 2.1 -- 10 ND ND 4.05 J ND 2.70 J -- 2.81 J ND ND ND ND 3.49 J ND ND ND ND ND ND ug/L 10/06/14 2.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND 2.52 J ND ND ND ND ug/L 04/14/15 3.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 3.1 -- 10 ND -- ND ND ND 4.86 J ND 4.05 J ND ND ND ND ND 4.51 J ND ND ND ND ug/L 04/20/16 3.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 3.1 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND 3.52 J ND ND ND ND ND ug/L 04/25/17 3.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 3.1 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND 3.11 J ND ND ug/L 04/16/18 3.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 3.1 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 3.1 10 -- ND ND ND ND ND ND ND 6.04 J ND ND ND ND 4.86 J ND ND ND ND ND ug/L 10/07/19 3.1 10 -- ND 3.13 J 7.68 J 3.24 J 4.46 J 5.35 J 4.28 J 6.44 J ND 3.93 J ND ND ND 4.48 J ND ND 4.92 J ND ug/L 04/20/20 3.1 10 -- ND ND ND ND ND ND ND ND ND ND 4.90 J ND ND ND ND ND ND ND ug/L 10/13/20 3.1 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 3.1 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 3.1 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 3.1 10 -- ND ND ND 3.75 J ND ND ND ND ND ND ND ND 3.27 J ND 3.22 J ND ND ND Mercury ug/L 03/01/99 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 1 ug/L ug/L 09/01/99 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 2 ug/L ug/L 03/01/00 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 0.5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND 0.15 J -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 12/01/08 0.11 -- 0.2 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.054 -- 0.2 ND ND 0.0541 J ND 0.144 J -- ND ND ND ND 0.239 -- -- -- -- -- -- ND ug/L 04/28/10 0.17 -- 2.0 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/11/10 0.17 -- 0.2 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.17 -- 0.2 ND ND ND ND 0.17 J -- 0.17 ND 0.17 0.17 ND ND -- -- -- -- -- ND ug/L 10/25/12 0.17 -- 0.2 ND ND ND ND 0.31 -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 09/24/13 0.17 -- 0.2 ND ND ND ND 0.2 ND ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/06/14 0.17 -- 0.2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 0.17 -- 0.2 ND -- ND ND 0.361 ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.17 -- 0.2 ND -- ND ND 0.248 ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.099 -- 0.2 ND -- ND ND 1.86 ND ND ND ND ND ND ND ND ND ND ND ND ND (verification event) ug/L 12/21/17 0.17 -- 0.2 -- -- -- -- 0.501 -- -- -- -- -- -- -- -- -- -- -- -- ND ug/L 10/16/18 0.15 0.20 -- ND -- ND ND 1.99 ND ND ND ND ND ND ND ND ND ND ND ND ND (verification event) ug/L 02/20/19 0.15 0.20 -- -- -- -- -- 0.739 -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/07/19 0.15 0.20 -- ND ND ND ND 0.314 ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.15 0.20 -- ND ND ND ND 2.32 ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 0.15 0.20 -- ND ND ND ND 0.236 ND ND ND ND ND ND ND ND ND ND ND ND ND Nickel ug/L 03/01/99 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 100 ug/L ug/L 09/01/99 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 50 ND ND ND ND ND -- 97 ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND 6.9 J ND 6.9 J -- 6.3 J 17.1 J ND ND 6.9 J -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND 5.9 J ND 4.3 J -- 4.2 J -- 2.5 J ND 8.4 J -- -- -- -- -- -- ND ug/L 04/29/08 2.0 -- 50 ND ND 6.7 J ND 9.5 J -- ND 6.7 J ND ND ND 15.0 J -- -- -- -- -- ND ug/L 12/01/08 1.8 -- 50 ND ND 7.5 J ND 10.3 J -- 2.1 J 33.9 J ND ND 9.1 J 8.2 J -- -- -- -- -- ND ug/L 12/05/08 1.8 -- 50 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ug/L 04/17/09 0.6 -- 50 1.1 J ND 10.7 J ND 13.6 J -- 3.0 J 2.1 J 1.3 J 0.8 J 11.6 J 22.8 J -- -- -- -- -- ND ug/L 10/16/09 1.8 -- 50 ND ND 9.15 J ND 11.6 J -- 3.42 J 40.3 J 4.46 J ND 9.71 J -- -- -- -- -- -- ND ug/L 04/28/10 1.8 -- 50 ND ND 13.2 J ND 11.2 J -- 3.86 J 36.6 J 1.96 J ND 12.0 J 10.7 J -- -- -- -- -- ND ug/L 08/02/10 1.8 -- 50 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1.86 J ND 4.28 J ND ug/L 10/11/10 1.8 -- 50 ND ND 9.47 J ND 10.1 J -- 3.95 J 40.5 J ND ND 10.2 J 10.4 J -- -- 3.75 J 5.57 J 4.15 ND ug/L 05/09/11 1.8 -- 50 ND ND 20.2 J ND 10.9 J -- 3.66 J 9.44 J ND ND 17.7 J 11.2 J -- -- -- -- -- ND ug/L 10/12/11 1.8 -- 50 ND ND 19.5 J ND 14.2 J -- 3.80 J 63.2 1.80 1.80 20.0 J 10.5 J 8.29 J 3.25 2.89 J 2.17 J 3.30 J ND ug/L 04/17/12 1.8 -- 50 ND ND 16.7 J ND 11.0 J -- 5.40 J 9.09 J ND ND 22.7 J 8.58 J -- -- -- -- -- ND ug/L 10/25/12 1.8 -- 50 ND ND 18.0 J ND 12.4 J -- ND 44.8 J ND 2.66 J 23.4 J 11.3 J 4.38 J ND 3.34 J 1.80 2.98 ND ug/L 05/02/13 1.8 -- 50 1.94 J ND 15.0 J ND 13.3 J -- 3.53 J 2.41 J 2.06 J ND 30.7 J 9.75 J 4.89 J 1.92 J 5.09 J ND 4.08 J ND ug/L 09/24/13 1.8 -- 50 ND ND 20.8 J ND 12.5 J 25.9 J 2.37 J 41.1 J ND ND 28.9 J 10.7 J 5.33 J ND 3.41 J 2.16 J 5.19 J ND ug/L 04/24/14 1.8 -- 50 ND ND 14.5 J ND 13.6 J -- 2.82 J 2.06 J 2.30 J ND 37.1 J 6.43 J 5.22 J 8.39 J 3.79 J ND 5.89 J ND ug/L 10/06/14 1.8 -- 50 ND ND 26.2 J ND 11.7 J 25.9 J 2.99 J 54.3 4.07 J ND 37.7 J 6.97 J 3.68 J 2.62 J 2.49 J ND 9.65 J ND ug/L 04/14/15 1.8 -- 50 ND 3.35 J 24.9 J ND 16.0 J 27.9 J 7.04 J 4.44 J 2.07 J ND 33.8 J -- 4.18 J ND 3.66 J ND 5.47 J ND ug/L 10/07/15 1.8 -- 50 ND -- 27.7 J 3.06 J 12.1 J 33.4 J 2.87 J 32.5 J 4.65 ND 44.4 J 3.06 J 3.75 J 2.53 J 4.18 J ND ND ND ug/L 04/20/16 2.2 -- 50 ND ND 23.9 J ND 13.1 J 33.5 J 6.73 J 7.26 J 5.39 J ND 51.8 13.2 J 6.70 J 10.4 J 5.16 J ND 6.36 J ND ug/L 09/26/16 2.2 -- 50 ND -- 28.1 J ND 12.7 J 35.9 J 8.05 J 51.5 6.69 J ND 51.5 8.85 J 5.74 J 3.44 6.47 J ND 7.49 J ND ug/L 04/25/17 2.2 -- 50 ND ND 25.4 J ND 12.2 J 35.9 J 5.82 J ND ND ND 63.7 3.27 J 4.17 J ND 5.07 J ND ND ND ug/L 10/17/17 2.2 -- 50 6.26 J -- 25.5 J ND 10.4 J 36.9 J 5.83 J 50.9 4.20 J 9.12 J 62.6 ND 2.76 J ND 4.11 J ND 3.98 J ND ug/L 04/16/18 2.2 -- 50 ND ND 30.6 J ND 11.9 J 46.6 J 4.78 J 9.74 J ND ND 82.2 5.68 J 3.17 J 2.20 J 4.25 J ND ND ND ug/L 10/16/18 2.2 10 -- ND -- 29.0 ND 9.47 J 56.6 5.42 J 22.3 ND ND 78.9 3.79 J ND 2.53 J 22.1 2.64 J ND ND ug/L 04/12/19 2.2 10 -- ND ND 25.4 ND 9.59 B 59.0 4.40 B 2.25 B ND ND 96.2 5.40 B 4.42 B 4.58 B 6.58 B ND ND 2.78 ug/L 10/07/19 2.2 10 -- ND ND 31.7 2.31 J 8.95 J 47.1 11.6 47.3 6.96 J ND 94.2 7.45 J 3.38 J 2.59 J 8.47 J ND 3.64 J ND ug/L 04/20/20 2.2 10 -- ND ND 24.6 ND 8.21 J 42.2 3.94 J 12.5 ND ND 98.5 10.1 2.51 J ND ND ND 2.68 J ND ug/L 10/13/20 2.2 10 -- ND ND 29.9 ND 7.89 J 32.1 2.35 J 21.9 ND ND 129 4.41 J 3.64 J ND 5.98 J ND 3.20 J ND ug/L 04/28/21 2.2 10 -- ND ND 26.9 ND 8.30 J 39.1 3.23 J 4.07 J ND ND 122 10.9 2.96 J 2.28 J 3.61 J ND 3.93 J ND ug/L 10/14/21 2.2 10 -- ND ND 30.6 3.00 J 8.40 J 17.4 2.82 J 35.0 4.39 J ND 124 ND 3.96 J ND 5.99 J ND 2.41 J ND ug/L 04/19/22 2.2 10 -- ND ND 23.5 ND 5.93 J 26.9 ND ND ND ND 128 ND ND ND 2.71 J ND ND ND Selenium ug/L 03/01/99 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 20 ug/L ug/L 09/01/99 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 50 ug/L ug/L 03/01/00 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND 4.0 J 3.4 J ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 2.0 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 2.7 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 3.4 -- 10 ND ND ND ND ND -- ND ND ND ND ND 3.8 J -- -- -- -- -- ND ug/L 10/16/09 2.7 -- 10 ND ND ND ND ND -- ND 6.5 J ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.83 -- 10 ND ND 16.1 J 5.04 J 4.18 J -- 2.57 J 17.3 2.09 J ND 17.0 3.19 J -- -- -- -- -- ND ug/L 08/02/10 0.83 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND 9.47 J ND ug/L 10/11/10 0.83 -- 10 1.31 J ND 9.61 J 4.27 J 4.02 J -- 2.54 J 11.6 ND ND 10.2 3.63 J -- -- -- -- -- ND ug/L 05/09/11 0.83 -- 10 1.07 J ND 29.9 6.46 J 6.00 J -- 1.91 J 4.76 J 1.08 J 1.10 J 24.7 3.38 J -- -- -- -- -- ND ug/L 10/12/11 2.7 -- 10 ND 2.80 J ND ND ND -- 2.39 J ND 0.926 J 0.83 ND 3.11 J 3.59 J 1.95 ND ND 3.57 J ND ug/L 04/17/12 0.83 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 0.83 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.91 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.91 -- 10 ND ND 1.23 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.91 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.91 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.91 -- 10 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.91 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.91 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.91 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 6.2 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 6.2 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 6.2 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 6.2 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 6.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 10.0 ug/L 10/07/19 6.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 6.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 6.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 6.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 6.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 6.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Silver ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 20 ug/L ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 100 ug/L ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND 2.5 J ND ND -- ND -- ND ND 2.6 J -- -- -- -- -- -- ND ug/L 04/29/08 2.0 -- 10 2.7 J 2.6 J 2.7 J ND ND -- ND ND 2.7 J 2.1 J 2.9 J ND -- -- -- -- -- ND ug/L 12/01/08 1.9 -- 10 ND ND ND ND ND -- ND ND 2.3 J ND ND ND -- -- -- -- -- ND ug/L 04/17/09 1.0 -- 10 ND ND 3.6 J 1.6 J ND -- ND ND ND ND 3.9 J ND -- -- -- -- -- ND ug/L 10/16/09 1.9 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 1.9 -- 10 ND ND 4.47 ND ND -- ND 4.32 J ND ND 3.07 J 2.50 J -- -- -- -- -- ND ug/L 08/02/10 1.9 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 1.9 -- 10 ND ND 3.27 J ND ND -- ND ND ND ND 3.25 J ND -- -- ND ND 5.30 ND ug/L 05/09/11 1.9 -- 10 ND ND 2.84 J ND ND -- ND ND ND ND 2.28 J ND -- -- -- -- -- ND ug/L 10/12/11 1.9 -- 10 ND ND 2.91 J ND ND -- ND 3.63 J ND ND ND 3.50 J ND ND ND ND ND ND ug/L 04/17/12 1.9 -- 10 ND ND 2.68 J ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 1.9 -- 10 ND ND 3.09 J ND ND -- ND 3.04 J ND ND ND 2.72 J ND ND ND ND ND ND ug/L 05/02/13 1.9 -- 10 ND ND 2.83 J ND ND -- ND ND ND ND 2.11 J ND ND ND ND ND ND ND ug/L 09/24/13 1.9 -- 10 ND ND 2.71 J ND ND ND ND 2.61 J ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 1.9 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND 2.43 J ND ND ND ND ug/L 10/06/14 1.9 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 1.9 -- 10 ND ND 3.24 J ND ND ND ND ND ND ND 2.51 J -- ND ND ND ND ND ND ug/L 10/07/15 1.9 -- 10 2.79 J -- 7.83 J ND ND ND ND ND ND ND 5.84 J ND ND ND ND ND ND ND ug/L 04/20/16 1.9 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 1.9 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 1.9 -- 10 ND ND ND ND ND ND ND ND ND ND 2.79 J ND ND ND ND ND ND ND ug/L 10/17/17 1.9 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 1.9 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 1.9 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 1.9 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 1.9 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 1.9 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 1.9 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 1.9 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 1.9 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 1.9 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ►%%I) GOLDER 3of14 November 2022 TABLE 4 GL19131339.300 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method SWS Assessment Reporting Sample Practical Upgradient Monitoring Wells Compliance Downgradient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constituent Detection Reporting Blanks Units Date Quantitation Limit Well Limit Limit MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 Thallium ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- 14 29 ND ND ND ND -- ND -- -- -- ND NC 2L = 2 ug/L ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 2 ug/L ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND 13 -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 10 J ND ND ND ND -- 10 J ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 10 ND ND 16 11 ND -- ND 16 ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND 23 ND ND -- ND 25 ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- 0.041 J 0.045 J 0.045 J 0.04 J 0.051 J -- 0.047 J -- 0.047 J 0.037 J 0.036 -- -- -- -- -- -- ND ug/L 04/29/08 0.036 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.036 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/05/08 4.8 -- 5.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ug/L 04/17/09 0.036 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.11 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.11 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.11 -- 5.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.11 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 05/09/11 0.11 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.11 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND 0.154 J ND ND ND ND ND ug/L 04/17/12 0.11 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 0.11 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.11 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.11 -- 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.11 -- 5.5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.11 -- 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.23 J ND ug/L 04/14/15 0.11 -- 5.5 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.11 -- 5.5 -- -- ND ND ND ND ND ND ND ND ND -- ND ND -- ND -- ND ug/L 04/20/16 0.11 -- 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.11 -- 5.5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.11 -- 5.5 0.239 J 0.168 J ND 0.301 J 0.321 J ND 0.288 J 0.200 J 0.173 J 0.180 J ND ND 0.265 J 0.221 J 0.191 J 0.138 J 0.200 J ND ug/L 10/17/17 0.11 -- 5.5 0.184 J -- 0.327 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.11 -- 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.55 5.00 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.55 5.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.22 2.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.22 2.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.22 2.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.22 2.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.22 2.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.22 2.00 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Tin ug/L 03/01/99 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND IMAC = 2000 ug/L ug/L 09/01/99 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 100 ND ND ND ND ND -- 100 ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 12/01/08 2.1 -- 100 ND ND ND ND ND -- ND 2.90 J 2.5 J ND ND ND -- -- -- -- -- ND ug/L 10/16/09 2.1 -- 100 4.36 J ND 7.05 J 5.20 J 4.66 J -- 5.58 J 7.96 J 6.03 J ND 3.37 J -- -- -- -- -- -- ND ug/L 04/28/10 2.1 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/11/10 2.1 -- 100 ND ND 4.57 J ND ND -- 2.34 J 6.23 J ND ND 2.51 J ND -- -- ND ND ND ND ug/L 10/12/11 2.1 -- 100 3.04 J ND 11.3 J 3.62 J 4.23 J -- 3.58 J 12.8 J 2.84 J ND 11.8 J 4.34 J -- -- -- -- -- ND ug/L 10/25/12 2.1 -- 100 3.92 J 2.10 8.91 J 4.31 J 3.95 J -- 5.32 J 8.90 J ND 4.44 J 4.21 J 4.48 J -- -- -- -- -- ND ug/L 09/24/13 2.1 -- 100 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/06/14 2.1 -- 100 ND ND 4.80 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 2.4 -- 100 -- -- ND ND ND ND ND ND ND ND ND -- ND ND -- ND -- ND ug/L 09/26/16 2.4 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 2.4 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 2.9 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND 3.23 J ND ND ug/L 10/07/19 2.9 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 2.9 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 2.9 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND 3.23 J ND ND ND Vanadium ug/L 03/01/99 -- -- 40 ND ND 62 ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 7ug/L ug/L 09/01/99 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 40 ND ND 76 ND 46 -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 40 ND ND 44 ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 40 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- 3.4 J ND ND ND ND -- ND ND ND 14.5 J ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- 2.3 B ND ND ND ND -- ND -- ND 14.2 B ND -- -- -- -- -- -- ND ug/L 04/29/08 1.0 -- 25 4.6 J 1.6 J ND ND ND -- 9.1 J 4.1 J 1.8 J 15.4 J ND ND -- -- -- -- -- ND ug/L 12/01/08 1.4 -- 25 2.3 J ND ND ND ND -- ND ND ND 8.5 J ND ND -- -- -- -- -- ND ug/L 12/05/08 1.4 -- 25 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/17/09 0.7 -- 25 4.0 J ND ND 2.2 J 6.4 J -- 6.8 J ND ND 10.0 J 2.1 J 50.1 -- -- -- -- -- ND ug/L 10/16/09 1.4 -- 25 3.92 J ND ND 4.06 J 3.27 J -- 1.65 J 2.02 J 6.2 J 9.44 J 6.24 J -- -- -- -- -- -- ND ug/L 04/28/10 1.4 -- 25 3.65 J ND ND 3.66 J 4.29 J -- 5.76 J ND ND 8.15 J 2.02 J ND -- -- -- -- -- ND ug/L 08/02/10 1.4 -- 25 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 9.3 J 3.15 J 2.14 J ND ug/L 10/11/10 1.4 -- 25 3.81 J ND ND 2.11 J 2.29 J -- 3.30 J 4.32 J ND 7.99 J 1.65 J 2.42 J -- -- 18.1 J 56.6 2.65 ND ug/L 05/09/11 1.4 -- 25 3.84 J ND ND 3.11 J ND -- 6.65 J ND ND 9.54 J 1.80 J ND -- -- -- -- -- ND ug/L 10/12/11 1.4 -- 25 3.23 J ND ND 2.61 J ND -- 5.40 J 2.33 J ND 7.82 J ND ND 8.23 J 9.48 3.91 J 12.8 J 2.57 J ND ug/L 04/17/12 1.4 -- 25 3.88 J ND ND 1.93 J 2.72 J -- 3.04 J ND ND 8.14 J ND ND -- -- -- -- -- ND ug/L 10/25/12 1.4 -- 25 4.23 J 1.40 ND 2.30 J 1.90 J -- 2.36 J 2.99 J 8.02 J ND 1.52 J ND ND 4.50 J 8.05 J 5.40 J 1.55 ND ug/L 05/02/13 1.4 -- 25 6.85 J ND ND 2.64 J 4.49 J -- 6.98 J 2.61 J ND 6.26 J 2.68 J 3.28 J ND ND 8.48 5.09 ND ND ug/L 09/24/13 1.4 -- 25 3.27 J ND ND 2.47 J 2.87 J 1.47 J 1.67 J ND ND 4.93 J ND 8.37 J 3.08 J 1.98 J 1.81 J 21.2 J ND ND ug/L 04/24/14 1.4 -- 25 3.87 J ND ND 2.65 J ND -- 3.81 J ND ND 4.90 J 2.18 J 7.66 J ND 1.71 J 3.93 J 6.14 J ND ND ug/L 10/06/14 1.4 -- 25 3.32 J ND ND 2.28 J ND 1.87 J ND ND ND 3.45 J 2.91 J 3.42 J ND 3.30 J 13.1 J 7.07 J ND ND ug/L 04/14/15 1.4 -- 25 3.28 J ND ND ND 6.41 J ND ND ND ND 2.05 J ND -- ND ND 2.22 J 14.0 J ND ND ug/L 10/07/15 1.4 -- 25 4.71 J -- ND 12.8 J ND 2.52 J 9.63 J 3.18 J ND 2.32 J 1.92 J 12.8 J ND ND 5.44 J 3.74 J 3.59 J ND ug/L 04/20/16 1.4 -- 25 4.66 J ND ND 3.04 J 4.60 J 2.76 J 2.82 J 1.75 J ND 3.07 J 3.75 J 14.9 J ND ND 2.25 J 5.60 J ND ND ug/L 09/26/16 1.4 -- 25 3.74 J -- ND 2.08 J ND 1.89 J ND ND ND 1.61 J 1.96 J 2.07 J ND ND 4.92 J ND ND ND ug/L 04/25/17 1.4 -- 25 6.06 J ND ND ND 1.48 J 2.17 J 12.5 J 6.09 J ND 1.75 J 2.76 J 13.9 J ND ND 12.4 J 12.0 J 7.32 J ND ug/L 10/17/17 1.4 -- 25 4.84 J -- 3.40 J 2.53 J ND 3.08 J 5.83 J 7.31 J ND ND 2.51 J 4.72 J 2.14 J 2.91 J 7.44 J 4.16 J ND ND ug/L 04/16/18 1.4 -- 25 3.67 J 2.04 J ND ND ND 2.83 J 5.83 J ND ND ND 2.15 J 5.90 J ND ND 4.33 J 2.44 J 1.96 J ND ug/L 10/16/18 1.4 10 -- 4.20 J -- ND ND 2.81 J 4.25 J 1.83 J 2.11 J ND ND ND 3.93 J 5.52 J 5.28 J 5.17 J 1.68 J ND ND ug/L 04/12/19 1.4 10 -- 5.22 J ND ND ND 2.08 J 3.54 J 4.30 J ND ND ND 3.21 J 5.77 J ND 1.74 J 2.15 J 2.62 J ND ND ug/L 10/07/19 1.4 10 -- 4.93 J ND ND ND ND 2.61 J ND ND ND ND 2.23 J 3.87 J ND 1.40 J 2.48 J 2.27 J ND ND ug/L 04/20/20 1.4 10 -- 4.15 J ND ND 1.79 J 1.81 J 3.09 J 2.56 J ND ND ND 3.66 J 1.90 J ND ND 1.84 J 2.53 J ND ND ug/L 10/13/20 1.4 10 -- 3.56 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 1.4 10 -- 3.57 J ND ND ND ND ND 3.81 J ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 1.4 10 -- 4.05 J ND ND ND ND ND 5.09 J ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 1.4 10 -- 3.69 J ND ND ND ND ND 6.21 J ND ND ND ND ND ND ND ND ND ND ND Zinc ug/L 03/01/99 -- -- 50 ND ND 62 ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 1000 ug/L ug/L 09/01/99 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 5000 ug/L ug/L 03/01/00 -- -- 50 ND ND 16 ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 50 ND ND 52 ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- 2.2 J ND ND ND 3.0 J -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- 2.5 J ND ND 1.3 J 2.1 J -- 69.7 -- 2.3 J ND 1.0 -- -- -- -- -- -- ND ug/L 04/29/08 1.0 -- 10 8.7 J 1.3 J ND ND 2.5 J -- 2.5 J 30 ND ND ND 3.5 J -- -- -- -- -- ND ug/L 12/01/08 3.8 -- 10 7.8 J ND ND ND ND -- ND ND ND ND ND 20.5 -- -- -- -- -- ND ug/L 04/17/09 3.4 -- 10 9.4 J ND 5.1 J ND 7.1 J -- 4.2 J 5.7 J 3.7 J ND 4.7 J 37.5 -- -- -- -- -- ND ug/L 10/16/09 3.8 -- 10 7.66 J ND ND 8.88 J 7.31 J -- ND 4.87 J 60.4 ND 4.03 J -- -- -- -- -- -- ND ug/L 04/28/10 3.8 -- 10 7.20 J ND 5.77 J ND 6.28 J -- ND 4.08 J 6.49 J ND ND ND -- -- -- -- -- ND ug/L 08/02/10 3.8 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 96.8 5.90 J 7.60 J ND ug/L 10/11/10 3.8 -- 10 ND 8.16 J ND ND ND -- ND ND ND ND ND ND -- -- 409 35.4 8.07 ND ug/L 05/09/11 3.8 -- 10 4.92 J 7.58 J 5.52 J ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 3.8 -- 10 ND ND 5.46 J ND ND -- ND ND ND ND ND ND 5.78 J 62.0 260 9.04 J 8.37 J ND ug/L 04/17/12 3.8 -- 10 4.48 J ND 3.95 J ND 5.80 J -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 3.8 -- 10 11.1 ND 5.48 J ND ND -- ND 8.58 J ND ND 4.57 J 4.94 J 3.91 J 29.8 272 4.39 J 5.97 ND ug/L 05/02/13 3.8 -- 10 7.37 J 4.11 J ND ND 4.31 J -- 4.60 J ND ND ND ND ND ND 23.3 676 5.54 4.19 ND ug/L 09/24/13 3.8 -- 10 ND ND ND ND 5.36 J 4.03 J 4.85 J ND ND ND ND 10.2 ND 20.0 438 11.8 7.82 J ND ug/L 04/24/14 3.8 -- 10 ND ND 4.33 J ND ND -- 11.4 ND ND ND ND 5.56 J 8.42 J 350 635 9.92 J 4.21 J ND ug/L 10/06/14 3.8 -- 10 ND 7.21 J 16.5 4.05 J 4.79 J 4.79 J 10.7 ND 4.39 J ND 4.60 J 5.60 J 4.52 J 48.5 58.2 6.33 J 12.3 ND ug/L 04/14/15 3.8 -- 10 12.3 9.44 J ND ND 8.67 J 6.39 J 31.1 4.49 J 6.85 J 3.80 3.80 -- ND 26.5 529 11.2 4.38 J ND ug/L 10/07/15 3.8 -- 10 4.19 J -- ND 7.21 J ND ND 7.74 J 5.12 J ND ND ND 7.21 J ND 20.2 280 ND 12.1 ND ug/L 04/20/16 4.4 -- 10 15.1 ND ND ND ND ND 13.7 9.56 J ND ND ND 9.19 J ND 350 588 39.2 ND ND ug/L 09/26/16 4.4 -- 10 4.65 J -- ND ND 5.23 J ND 7.93 J 8.75 J ND 6.36 J 14.8 ND ND 58.0 52.6 ND 5.91 J ND ug/L 04/25/17 4.4 -- 10 5.06 J 5.09 J ND ND 5.84 J ND 11.0 8.99 J ND ND ND 7.84 J ND 40.6 730 ND 5.31 J ND ug/L 10/17/17 4.4 -- 10 4.64 J -- ND ND ND ND 4.74 J 6.53 J ND ND ND ND 5.21 J 24.4 67.5 ND 7.07 J ND ug/L 04/16/18 4.4 -- 10 6.74 J 5.94 J 4.67 J ND ND ND 11.8 4.98 J ND ND ND 6.46 J ND 48.3 388 ND ND ND ug/L 10/16/18 4.4 10 -- 6.31 J -- 28.2 ND 5.80 J ND 11.7 7.28 J ND ND ND ND 14.0 61.1 479 7.96 J ND ND ug/L 04/12/19 4.4 10 -- 13.0 ND 9.25 J ND 15.8 ND 16.5 68.9 ND ND ND 4.53 J 5.37 J 78.1 899 ND ND ND ug/L 10/07/19 4.4 10 -- 8.73 J 6.46 J 6.80 J 6.48 J 9.23 J 6.44 J 22.4 9.94 J 9.82 J 22.3 10.6 ND ND 31.1 154 7.03 J 7.29 J ND ug/L 04/20/20 4.4 10 -- ND ND ND 4.71 J ND ND 17.1 21.1 ND ND ND 5.38 J ND 50.2 394 ND ND ND ug/L 10/13/20 4.4 10 -- ND ND ND 4.79 J 5.73 J ND 7.63 J 24.6 ND ND ND 41.6 ND 19.5 376 ND ND ND ug/L 04/28/21 4.4 10 -- ND ND ND ND 6.55 J ND 5.17 J 18.9 ND ND ND 20.6 ND 79.4 517 ND 4.46 J ND ug/L 10/14/21 4.4 10 -- 6.49 J ND ND 13.5 ND ND 17.6 5.78 J 5.69 J ND ND ND ND 14.9 117 ND ND ND u /L 04/19/22 4.4 10 -- ND ND ND ND 5.22 J ND 10.5 9.95 J ND ND ND 7.28 J ND 32.7 603 ND ND ND Acetone ug/L 03/01/99 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 6000 ug/L ug/L 09/01/99 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- 3.8 B 5.5 B 18 B 1.6 J ND -- 12 J -- ND ND 11 B -- -- -- -- -- -- ND ug/L 04/29/08 0.62 -- 100 0.62 5.9 J 5.5 J ND ND -- 3.4 J 4.8 J ND ND ND 7.4 J -- -- -- -- -- ND ug/L 12/01/08 1.5 -- 100 ND ND ND 7.3 J ND -- ND 10 J ND ND ND 6.1 J -- -- -- -- -- ND ug/L 10/16/09 1.5 -- 100 ND ND ND ND ND -- ND 20 J 2.4 J ND ND -- -- -- -- -- -- ND ug/L 04/28/10 1.5 -- 100 ND ND ND ND ND -- ND 5.4 J 2.0 J ND ND ND -- -- -- -- -- ND ug/L 08/02/10 1.5 -- 100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND 3 J ND ND ug/L 10/11/10 1.5 -- 100 ND ND ND 5.2 J ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 1.2 -- 100 ND ND ND ND ND -- ND ND ND ND ND 16 J -- -- -- -- -- ND ug/L 10/12/11 1.2 -- 100 ND ND ND ND ND -- ND ND ND ND ND 5.1 J ND ND ND ND ND ND ug/L 04/17/12 1.2 -- 100 ND ND ND 5.8 J ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 1.2 -- 100 ND ND 3.3 J ND ND -- ND 9.8 J ND ND ND 5.4 J ND ND ND ND ND ND ug/L 05/02/13 1.2 -- 100 ND ND ND ND ND -- ND ND ND ND ND 28 J ND ND ND ND ND ND ug/L 09/24/13 1.2 -- 100 ND ND 4 J ND ND 4.7 J ND 7.1 J ND 2.2 J ND ND ND ND ND ND ND ND ug/L 04/24/14 1.2 -- 100 ND ND ND ND ND -- ND ND ND ND ND 36 J ND ND ND ND ND ND ug/L 10/06/14 1.2 -- 100 ND ND ND ND ND ND ND 16 J ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 1.2 -- 100 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 1.2 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 1.2 -- 100 ND 1.2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1.2 ND ug/L 09/26/16 10 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 10 -- 100 16 B 20 B 19 B 21 B 12 B 33 B 14 B ND 11 B 11 B 28 B 33 J 16 B 15 B 20 B 14 B ND 28 J ug/L 10/17/17 10 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 10 -- 100 ND ND ND ND ND ND ND 44 J ND ND ND 14 J ND ND ND ND ND ND ug/L 10/16/18 10 20 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 10 20 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 10 20 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 10 20 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 10 20 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 10 20 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 10 20 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 26 u /L 04/19/22 10 20 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ►%%I) GOLDER 4of14 November 2022 TABLE 4 GL19131339.300 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method SWS Assessment Reporting Sample Practical Upgradient Monitoring Wells Compliance Downgradient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constituent Detection Reporting Blanks Units Date Quantitation Limit Well Limit Limit MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 Benzene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 1 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 5 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01 /06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug L 09/26/07 -- -- -- ND ND 0.77 J 1.5 ND -- ND -- ND ND ND -- -- -- ND ug/L 04/29/08 0.2 -- 1 ND ND ND 1.8 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.2 -- 1 ND ND 1.1 1.6 0.52 J -- ND 2.9 ND ND ND ND -- -- -- -- -- ND ug/L 02/13/09 0.2 -- 1 -- -- -- -- -- -- -- 1.8 -- -- -- -- -- -- -- -- -- ND ug/L 02/13/09 0.2 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 04/17/09 0.2 -- 1 ND ND 0.7 J 1.4 ND -- ND ND 0.42 J ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.2 -- 1 ND ND 1.4 1.9 0.7 J -- ND 1.7 ND ND ND -- -- -- -- -- -- N D ug/L 04/28/10 0.05 -- 1 ND ND 1.1 1.2 0.80 J -- ND 1.6 0.64 J ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.2 -- 1 -- ND 1.4 0.88 J -- -- -- -- ND ND -- -- -- ND ND ND ND ND ug/L 10/11/10 0.2 -- 1 ND ND 1.2 0.67 J 0.96 J -- ND 2.2 ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.68 -- 1 ND ND 0.78 J ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.68 -- 1 ND ND 0.98 J ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.15 -- 1 ND ND 0.91 J ND 1.1 -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.15 -- 1 ND ND 1.5 ND 1.4 -- ND 2.3 ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.15 -- 1 ND ND 0.45 J ND 1.3 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.15 -- 1 ND ND 1.1 ND 1.3 0.62 J ND 1.6 ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.15 -- 1 ND ND ND ND 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.15 -- 1 ND ND 1.1 ND 1.1 0.41 J ND 2.0 ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.15 -- 1 ND ND 0.73 J ND 1.5 0.67 J ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.15 -- 1 ND -- 1.2 ND 1.3 0.73 J ND 1.4 ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.15 -- 1 ND ND 0.78 J ND 1.4 0.57 J ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.15 -- 1 ND -- ND ND ND 0.67 J ND 2.1 ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.15 -- 1 ND ND ND ND 1.4 0.78 J ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.15 -- 1 ND -- 1.8 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.15 -- 1 ND ND ND ND 1.2 0.67 J ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.15 1.0 -- ND -- ND ND 1.1 0.60 J ND 0.69 J ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.15 1.0 -- ND ND ND ND 0.93 J 0.45 J ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.15 1.0 -- ND ND 1.5 ND 0.84 J 0.54 J ND 1.2 ND ND 0.32 J ND ND ND ND ND ND ND ug/L 04/20/20 0.15 1.0 -- ND ND ND ND 0.62 J ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.15 1.0 -- ND ND 0.58 J ND 0.54 J 0.61 J ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.15 1.0 -- ND ND ND ND ND ND ND ND ND ND 0.62 J ND ND ND ND ND ND ND ug/L 10/14/21 0.15 1.0 -- ND ND 1.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.15 1.0 -- ND ND ND ND ND ND ND ND ND ND 0.87 J ND ND ND ND ND ND ND Carbon Tetrachloride ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 0.3 ug/L ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 5 ug/L ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01 /06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.35 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.38 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND N D ND N D ug/L 10/11/10 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.69 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.69 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.17 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.17 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.17 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.17 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.17 -- 1 ND -- 0.47 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.17 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.17 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.17 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.17 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.17 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.17 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.17 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.17 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.17 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.17 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Chlorobenzene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 50 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 100 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND 2.5 J ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- ND ND 1.1 J 0.49 J ND -- 0.50 J -- ND ND 2.0 J -- -- -- -- -- -- ND ug/L 04/29/08 0.27 -- 3 ND ND ND 0.52 J ND -- ND ND ND ND 2.2 J ND -- -- -- -- -- ND ug/L 12/01/08 0.27 -- 3 ND ND 1.8 J 0.54 J ND -- ND 4.7 ND ND 1.9 J ND -- -- -- -- -- ND ug/L 04/17/09 0.27 -- 3 ND ND 1.0 J 0.49 J ND -- ND ND ND ND 2.0 J ND -- -- -- -- -- ND ug/L 10/16/09 0.27 -- 3 ND ND 2.9 J 0.78 J ND -- ND 5.0 ND ND 2.1 J -- -- -- -- -- -- ND ug/L 04/29/10 0.069 -- 3 -- ND 1.4 J 0.48 J -- -- -- -- ND ND -- -- -- ND -- -- -- ND ug/L 08/02/10 0.27 -- 3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.27 -- 3 ND ND 3.2 0.74 J ND -- ND 7.4 ND ND 2.8 J ND -- -- ND ND ND ND ug/L 05/09/11 0.74 -- 3 ND ND 1.2 J 0.78 J ND -- ND ND ND ND 2.3 J ND -- -- -- -- -- ND ug/L 10/12/11 0.74 -- 3 ND ND ND 0.99 J ND -- ND ND ND ND 2.3 J ND ND ND ND ND ND ND ug/L 04/17/12 0.17 -- 3 ND ND 2.0 J 0.51 J ND -- ND 0.71 J ND ND 2.5 J ND -- ND ND ND ND ND ug/L 10/25/12 0.17 -- 3 ND ND 3.5 0.74 J ND -- ND 5.7 ND ND 1.8 J ND ND ND ND ND ND ND ug/L 05/02/13 0.17 -- 3 ND ND 1.4 J 0.88 J ND -- ND ND ND ND 2.4 J ND ND ND ND ND ND ND ug/L 09/24/13 0.17 -- 3 ND ND 2.9 J 0.89 J ND 2.0 J ND 4.3 ND ND 2.0 J ND ND 0.52 J ND ND ND ND ug/L 04/24/14 0.17 -- 3 ND ND 3.0 1.0 J ND -- ND ND ND ND 2.2 J ND ND ND ND ND ND ND ug/L 10/06/14 0.17 -- 3 ND ND 4.3 0.72 J 0.45 J 1.5 J ND 5.8 ND ND 2.2 J ND ND 0.62 J ND ND ND ND ug/L 04/14/15 0.17 -- 3 ND ND 2.0 J 0.63 J ND 2.4 J ND ND ND ND 1.7 J -- ND ND ND ND ND ND ug/L 10/07/15 0.17 -- 3 ND -- 3.4 ND ND 2.8 J ND 3.6 ND ND 1.9 J ND ND 0.60 J ND ND ND ND ug/L 04/20/16 0.17 -- 3 ND ND 3.3 0.87 J ND 2.5 J ND 0.73 J ND ND 2.0 J ND ND ND ND ND ND ND ug/L 09/26/16 0.17 -- 3 ND -- 4.3 ND ND 2.7 J ND 6.4 ND ND ND ND ND 0.40 J ND ND ND ND ug/L 04/25/17 0.17 -- 3 ND ND 2.0 J 0.87 J ND 3.4 ND ND ND ND 2.2 J ND ND 0.45 J ND ND ND ND ug/L 10/17/17 0.17 -- 3 ND -- ND 1.2 J ND 3.8 ND 7.5 ND ND 2.5 J ND ND 0.60 J ND ND ND ND ug/L 04/16/18 0.17 -- 3 ND ND 1.9 J 0.97 J ND 3.4 ND 0.82 J ND ND 1.8 J ND ND ND ND ND ND ND ug/L 10/16/18 0.17 1.0 -- ND -- 1.1 0.85 J ND 3.6 ND 2.5 ND ND 1.9 ND ND ND ND ND ND ND ug/L 04/12/19 0.17 1.0 -- ND ND 2.9 0.87 J ND 3.5 ND ND ND ND 1.9 ND ND ND ND ND ND ND ug/L 10/07/19 0.17 1.0 -- ND ND 6.1 0.88 J 0.23 J 3.2 ND 5.1 ND ND 1.9 ND ND 0.41 J ND ND ND ND ug/L 04/20/20 0.17 1.0 -- ND ND 3.0 0.63 J ND 2.5 ND 1.1 ND ND 1.3 ND ND ND ND ND ND ND ug/L 10/13/20 0.17 1.0 -- ND ND 2.8 0.85 J ND 3.2 ND 3.0 ND ND 1.6 ND ND 0.52 J ND ND ND ND ug/L 04/28/21 0.17 1.0 -- ND ND 1.7 0.69 J ND 1.6 ND ND ND ND 1.9 ND ND ND ND ND ND ND ug/L 10/14/21 0.17 1.0 -- ND ND 4.6 ND ND 2.1 ND 3.7 ND ND 1.2 ND ND ND ND ND ND ND u /L 04/19/22 0.17 1.0 -- ND ND 3.1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Chloroethane ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 3000 ug/L ug/L 09/01/99 -- -- 10 ND ND 33 ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 10 ND ND 16 ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 10 ND ND 22 ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND 24 ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND 2.8 J ND ND -- 1.6 J -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.3 -- 10 ND ND ND ND 1.8 J -- ND ND ND ND 1.6 J ND -- -- -- -- -- ND ug/L 12/01/08 0.3 -- 10 ND ND 3.1 J ND 2.8 J -- ND ND ND ND 1.6 J ND -- -- -- -- -- ND ug/L 04/17/09 0.3 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.3 -- 10 ND ND 1.7 J 0.61 J ND -- ND 0.3 ND ND 0.3 -- -- -- -- -- -- ND ug/L 04/28/10 0.18 -- 10 ND ND 0.95 J ND 1.6 J -- ND ND ND ND 0.70 J ND -- -- -- -- -- ND ug/L 08/02/10 0.3 -- 10 -- ND 1.5 J ND -- -- -- -- ND ND -- -- -- 0.46 J ND ND ND ND ug/L 10/11/10 0.3 -- 10 ND ND 1.6 J 0.57 J 1.6 J -- ND ND ND ND 0.8 J ND -- -- ND ND ND ND ug/L 05/09/11 0.75 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.75 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.23 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.23 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.23 -- 10 ND ND ND ND 2.1 J -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.23 -- 10 ND ND ND 0.47 J ND ND ND ND ND ND ND ND ND 0.81 J ND ND ND ND ug/L 04/24/14 0.23 -- 10 ND ND ND ND 1.8 J -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.23 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.23 -- 10 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.23 -- 10 ND -- 0.94 J ND 1.5 J 1.2 J ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.23 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.23 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.23 -- 10 ND ND ND ND 0.98 J ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.23 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.23 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.23 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.23 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.23 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.23 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.23 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.23 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.23 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.23 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Chloroform ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- NC 2L = 70 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- EPA MCL = 80 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 04/01 /06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.2 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.2 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.2 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/16/09 0.2 -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.2 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- u g/L 08/02/10 0.2 -- 5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- N D ND N D ND ug/L 10/11/10 0.2 -- 5 ND ND ND ND ND __ ND ND ND ND ND ND __ __ ND ND ND ND ug/L 05/09/11 0.7 -- 5 ND ND ND ND ND __ ND ND ND ND ND ND __ ND ug/L 10/12/11 0.7 -- 5 ND ND ND ND ND __ ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.18 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.18 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.18 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.18 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.18 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.18 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.18 -- 5 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.18 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.18 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.18 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.18 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.18 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.18 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.18 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.18 1.0 -- ND 0.67 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.18 1.0 -- ND 0.63 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.18 1.0 -- ND 0.69 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.18 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.18 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.18 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.18 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ►%%I) GOLDER 5of14 November 2022 TABLE 4 GL19131339.300 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method SWS Assessment Reporting Sample Practical Upgradient Monitoring Wells Compliance Downgradient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constituent Detection Reporting Blanks Units Date Quantitation Limit Well Limit Limit MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 1,2-Dichlorobenzene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 20 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 600 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01 /06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND 0.32 J ND ND -- ND 0.41 J ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND 0.48 J ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.27 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.27 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.27 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.27 -- 5 ND ND ND ND ND -- ND 0.47 J ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.052 -- 5 ND ND ND ND ND -- ND 0.43 J ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.27 -- 5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.27 -- 5 ND ND 0.43 J ND ND -- ND 0.51 J ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.11 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.11 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.19 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.19 -- 5 ND ND 0.41 J ND ND -- ND 0.5 J ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.19 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.19 -- 5 ND ND ND ND ND ND ND 0.5 J ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.19 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.19 -- 5 ND ND 0.61 J ND ND ND ND 0.46 J ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.19 -- 5 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.19 -- 5 ND -- 0.46 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.19 -- 5 ND ND 0.55 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.19 -- 5 ND -- 0.57 J ND ND ND ND 0.55 J ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.19 -- 5 ND ND 0.44 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.19 -- 5 ND -- 1.0 J ND ND ND ND 0.72 J ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.19 -- 5 ND ND 0.41 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.19 1.0 -- ND -- 0.57 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.19 1.0 -- ND ND 0.55 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.19 1.0 -- ND ND 0.87 J ND ND ND ND 0.38 J ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.19 1.0 -- ND ND 0.54 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.19 1.0 -- ND ND 0.44 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.19 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.19 1.0 -- ND ND 0.76 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.19 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,4-Dichlorobenzene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND 6.4 ND ND ND ND -- ND -- -- -- ND NC 2L = 6 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 75 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND 5.0 ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND 6.0 ND ND -- ND 7.0 ND ND ND -- -- -- -- -- -- ND ug/L 04/01 /06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND 3.3 ND ND 0.89 J -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND 5.0 ND ND -- 0.93 J -- ND ND 0.90 J -- -- -- -- -- -- ND ug/L 04/29/08 0.20 -- 1 ND ND ND ND ND -- ND ND ND ND 0.73 J ND -- -- -- -- -- ND ug/L 12/01/08 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND 0.59 J ND -- -- -- -- -- ND ug/L 02/13/09 0.38 -- 1 -- -- -- -- -- -- -- 4.1 -- -- -- -- -- -- -- -- -- ND ug/L 04/17/09 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.38 -- 1 ND ND 0.67 J ND -- ND 3.8 ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.10 -- 1 ND ND 0.61 J ND -- ND 3.4 0.53 J ND 0.55 J ND -- -- -- -- -- ND ug/L 08/02/10 0.38 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.38 -- 1 ND ND 7.5 0.54 J ND -- 0.5 J 4.7 ND ND 0.56 J ND -- -- ND ND ND ND ug/L 05/09/11 0.79 -- 1 ND ND 4.0 0.87 J ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.79 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.19 -- 1 ND ND 4.6 0.55 J ND -- ND 0.51 J 0.42 J ND 0.52 J ND -- ND ND ND ND ND ug/L 10/25/12 0.19 -- 1 ND ND 7.7 0.94 J ND -- ND 4.8 ND ND 0.44 J ND ND ND ND ND ND ND ug/L 05/02/13 0.19 -- 1 ND ND 3.4 1.2 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.19 -- 1 ND ND 4.3 1.5 ND 0.87 J ND 3.2 ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.19 -- 1 ND ND 5.6 2.0 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.19 -- 1 ND ND 8.2 1.3 ND 0.96 J ND 3.8 ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.19 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.19 -- 1 ND -- 7.6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.19 -- 1 ND ND 7.9 2.5 ND 1.0 ND 0.72 J ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.19 -- 1 ND -- ND 2.2 ND 1.2 ND 4.3 ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.19 -- 1 ND ND 5.3 3.0 0.55 J 1.6 ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.19 -- 1 ND -- 16 3.3 0.57 J 1.4 ND 5.9 ND ND ND ND ND 0.40 J ND ND ND ND ug/L 04/16/18 0.19 -- 1 ND ND 6.5 3.1 0.53 J 1.5 ND 0.81 J ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.19 1.0 -- ND -- 9.7 3.2 0.48 J 1.6 ND 2.3 ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.19 1.0 -- ND ND 7.9 3.3 ND 1.1 ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.19 1.0 -- ND ND 14 3.3 0.35 J 1.2 ND 3.6 ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.19 1.0 -- ND ND 7.5 2.5 ND 0.76 J ND 1.1 ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.19 1.0 -- ND ND 6.7 3.0 ND 1.4 ND 2.7 ND ND ND ND ND 0.43 J ND ND ND ND ug/L 04/28/21 0.19 1.0 -- ND ND 8.7 2.4 ND 0.66 J ND ND ND ND ND ND ND ND ND 0.44 J ND ND ug/L 10/14/21 0.19 1.0 -- ND ND 11 ND ND ND ND 3.8 ND ND ND 2.0 ND ND ND ND ND ND ug/L 04/19/22 0.19 1.0 -- ND ND 9.2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Dichlorodifloromethane ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 1000 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND 12 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND 5.8 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND 5.8 ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND 1.5 J ND -- ND -- 0.45 J ND ND -- -- -- -- -- -- ND ug/L 12/01/08 0.38 -- 5 ND ND ND 0.70 J ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.38 -- 5 ND ND ND 0.99 J ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/11/10 0.38 -- 5 ND ND ND 0.50 J ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.56 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 0.2 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 09/24/13 0.2 -- 5 ND ND ND ND 0.53 J ND ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/06/14 0.2 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 0.2 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.2 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.2 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.2 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.2 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.2 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 0.2 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,1-Dichloroethane ug/L 03/01/99 -- -- 5 ND ND ND 13 ND -- 26 ND 33 ND 7.9 ND -- ND -- -- -- ND NC 2L = 6 ug/L ug/L 09/01/99 -- -- 5 ND ND ND 9.2 ND -- 13 ND 12 ND 7.4 -- -- -- -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND 7.5 ND 5.1 ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND 6.3 ND -- 11 ND 5.9 ND 5.3 -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- 10 ND 9.7 ND 5.0 ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND 9.5 7.0 -- 11 ND 69 ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND 9.1 ND -- 8.7 ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- 6.3 ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND 7.8 ND -- 5.8 ND 5.6 ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- 5.5 ND 6.9 ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND 20 5.4 -- 7.7 ND ND 5.7 ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND 12 6.0 -- 5.0 ND 9.0 5.0 ND ND -- 25 -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND 17 6.0 -- 5.0 ND 9.0 ND ND -- -- -- -- -- -- ND ug/L 04/01 /06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND 16 7.3 -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- ND ND 1.7 J 11 6.9-- 2.0 J 0.09 2.6 J 2.7 J 1.2 J -- -- -- -- -- -- ND ug/L 09/26/07 -- ND ND 2.8 J 8.0 -- 1.6 J -- 2.9 J 2.5 J 1.1 J -- -- -- -- -- -- ND ug/L 04/29/08 0.33 -- 5 ND ND 1.1 J 15 12 -- ND ND ND 2.0 J 1.2 J ND -- -- -- -- -- ND ug/L 12/01/08 0.33 -- 5 ND ND 2.5 J 15 14 -- ND ND ND 1.2 J 1.2 J ND -- -- -- -- -- ND ug/L 04/17/09 0.33 -- 5 ND ND 1.5 J 11 12 -- ND ND 0.72 J 0.89 J 0.87 J ND -- -- -- -- -- ND ug/L 10/16/09 0.33 -- 5 ND ND 3.0 J 7 -- 0.62 J ND 1.7 J 0.49 J 0.73 J -- -- -- -- -- -- ND ug/L 04/28/10 0.05 -- 5 ND ND 2.3 J -- 0.91 J ND 1.1 J ND 0.79 J ND -- -- -- -- -- ND ug/L 08/02/10 0.33 -- 5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND 4.2 J ND ND ug/L 10/11/10 0.33 -- 5 ND ND 3.0 J 17 15 -- 0.74 J ND 0.42 J ND 0.83 J ND -- -- ND 3.8 J ND ND ug/L 05/09/11 0.08 -- 5 ND ND 1.1 J -- ND ND ND ND 0.79 J ND -- -- -- -- -- ND ug/L 10/12/11 0.08 -- 5 ND ND 1.7 J 12 11 -- ND ND ND ND ND ND 0.88 J 5.8 ND 0.88 J ND ND ug/L 04/17/12 0.13 -- 5 ND ND 1.2 J 9.3 12 -- ND ND 0.65 J 0.64 J 0.66 J ND -- 6.9 ND 5.4 ND ND ug/L 10/25/12 0.13 -- 5 ND ND 1.6 J 11 14 -- ND ND 0.79 J 0.85 J ND ND 0.90 J ND ND 5.0 ND ND ug/L 05/02/13 0.13 -- 5 ND ND 0.77 J 14 17 -- ND ND ND 0.90 J 0.53 J ND 0.74 J 7.9 ND 4.5 J ND ND ug/L 09/24/13 0.13 -- 5 ND ND 0.89 J 11 10 1.4 J 0.44 J ND ND ND 0.46 J ND 0.90 J ND ND 5.6 ND ND ug/L 04/24/14 0.13 -- 5 ND ND 0.79 J 10 15 -- ND ND ND 0.54 J 0.42 J ND 0.80 J ND ND ND ND ND ug/L 10/06/14 0.13 -- 5 ND ND 0.53 J 8.4 11 1.2 J ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.13 -- 5 ND ND 0.45 J 7.1 14 1.2 J ND ND ND 0.89 J 0.13 -- 0.96 J 5.7 ND ND ND ND ug/L 10/07/15 0.13 -- 5 ND -- 0.86 J ND 14 0.99 J ND ND ND 0.79 J ND ND ND 5.8 ND 3.7 J ND ND ug/L 04/20/16 0.13 -- 5 ND ND 0.46 J 9.5 12 0.95 J ND ND ND 1.2 J ND ND 0.9 J 0.42 J ND 5.5 ND ND ug/L 09/26/16 0.13 -- 5 ND -- 0.76 J 8.6 12 1.0 J ND ND ND 0.63 J ND ND 0.81 J 4.6 ND ND ND ND ug/L 04/25/17 0.13 -- 5 ND ND ND 7.5 12 0.80 J ND ND ND 1.0 J ND ND 0.91 J 3.8 J ND 0.51 J ND ND ug/L 10/17/17 0.13 -- 5 ND -- 0.54 J 6.3 10 0.85 J ND ND ND 1.0 J ND ND 0.66 J 4.0 J ND 4.6 J ND ND ug/L 04/16/18 0.13 -- 5 ND ND ND 7.2 11 0.77 J ND ND ND 1.7 J ND ND 0.91 J 2.7 J ND 7.8 ND ND ug/L 10/16/18 0.13 1.0 -- ND -- ND 5.3 5.5 0.55 J ND ND ND 1.1 ND ND ND ND ND 1.1 ND ND ug/L 04/12/19 0.13 1.0 -- ND ND ND 4.8 4.4 ND ND ND ND 0.99 J ND ND 0.66 J 0.41 J ND 4.2 ND ND ug/L 10/07/19 0.13 1.0 -- ND ND ND 5.4 4.2 0.55 J ND ND ND 1.6 ND ND 0.73 J 2.4 ND 4.9 ND ND ug/L 04/20/20 0.13 1.0 -- ND ND ND 4.0 3.8 ND ND ND ND 1.4 ND ND 0.72 J 0.88 J ND 3.6 ND ND ug/L 10/13/20 0.13 1.0 -- ND ND ND 4.4 2.7 0.66 J ND ND ND 1.6 ND ND 0.78 J 2.2 ND 1.7 ND ND ug/L 04/28/21 0.13 1.0 -- ND ND ND 2.9 1.8 ND ND ND ND 1.5 ND ND 0.74 J ND ND 3.7 ND ND ug/L 10/14/21 0.13 1.0 -- ND ND ND ND 2.1 ND ND ND ND 0.83 J ND 3.2 0.84 J 2.2 ND 5.4 ND ND u /L 04/19/22 0.13 1.0 -- ND ND ND 3.3 2.8 ND ND ND ND ND ND ND ND ND ND 2.2 ND ND 1,2-Dichloroethane ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 0.4 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 5 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.46 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.65 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.65 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.65 -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.65 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.65 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.65 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.47 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.47 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.21 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.21 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.21 -- 1 ND ND ND 0.40 J ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.21 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.21 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.21 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.21 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.21 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.21 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.21 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.21 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.21 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.21 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.21 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.21 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.21 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.21 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.21 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.21 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.21 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.21 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ►%%I) GOLDER 6of14 November 2022 TABLE 4 GL19131339.300 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method SWS Assessment Reporting Sample Practical Upgradient Monitoring Wells Compliance Downgradient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constituent Detection Reporting Blanks Units Date Quantitation Limit Well Limit Limit MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 1,1-Dichloroethene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 7 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 7 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND 0.50 1 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND 0.52 1 ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.20 -- 5 ND ND ND 0.47 1 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.24 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.24 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.24 -- 5 ND ND ND 0.60 1 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.15 -- 5 ND ND ND 0.45 1 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.24 -- 5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.24 -- 5 ND ND ND 0.49 1 ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.60 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.60 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.21 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.21 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.21 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.21 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.21 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.21 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.21 -- 5 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.21 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.21 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.21 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.21 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.21 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.21 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.21 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.21 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.21 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.21 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.21 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.21 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.21 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.21 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND cis-1,2-Dichloroethene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 70 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 70 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND 44 ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND 6.0 ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND 5.2 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND 5.0 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND 7.9 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND 6.8 ND -- ND ND 1.1 1 ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- ND ND ND ND ND -- ND -- 1.3 1 ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.30 -- 5 ND ND ND 12 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.36 -- 5 ND ND 0.71 1 11 0.52 1 -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.36 -- 5 ND ND 1.0 1 11 0.52 1 -- ND ND 2.3 1 ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.36 -- 5 ND ND 3.0 1 20 0.46 1 -- ND ND 0.94 1 ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.075 -- 5 ND ND 3.3 1 20 0.66 1 -- ND ND 3.6 1 ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.36 -- 5 -- ND 4.9 1 20 -- -- -- -- 0.71 1 ND -- -- -- 20 ND 6.9 ND ND ug/L 10/11/10 0.36 -- 5 ND ND 4.2 1 23 0.88 1 -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.72 -- 5 ND ND 0.88 1 21 1.7 1 -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.72 -- 5 ND ND ND 21 ND -- ND ND ND ND ND ND ND 16 ND 1.2 1 ND ND ug/L 04/17/12 0.15 -- 5 ND ND 2.1 1 17 0.66 1 -- ND ND 0.79 1 0.58 1 0.15 ND -- 16 ND 12 ND ND ug/L 10/25/12 0.15 -- 5 ND ND 3.0 1 23 0.73 1 -- ND ND 0.48 1 0.44 1 ND ND ND 24 ND 12 ND ND ug/L 05/02/13 0.15 -- 5 ND ND 1.3 1 29 1.0 1 -- 0.15 0.15 0.15 0.15 0.15 ND 0.15 23 ND 14 ND ND ug/L 09/24/13 0.15 -- 5 ND ND 2.6 1 26 0.68 1 0.87 1 ND ND ND ND ND 0.78 1 ND 26 ND ND ND ND ug/L 04/24/14 0.15 -- 5 ND ND 0.43 1 26 1.0 1 -- ND ND ND ND ND ND ND ND ND 14 ND ND ug/L 10/06/14 0.15 -- 5 ND ND 1.1 1 21 0.74 1 ND ND ND ND ND ND ND ND 17 ND ND ND ND ug/L 04/14/15 0.15 -- 5 ND ND ND 19 1.3 1 1.0 1 ND ND ND ND ND -- ND ND ND 15 ND ND ug/L 10/07/15 0.15 -- 5 ND -- ND ND 0.85 1 0.60 1 ND ND ND ND ND ND ND 13 ND 7.6 ND ND ug/L 04/20/16 0.15 -- 5 ND ND ND 21 1.1 1 0.82 1 ND ND ND ND ND ND ND 0.83 1 ND 12 ND ND ug/L 09/26/16 0.15 -- 5 0.15 -- ND 20 1.1 1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 ND 8.0 ND 12 ND ND ug/L 04/25/17 0.15 -- 5 ND ND ND 21 1.3 1 1.1 1 ND ND ND ND ND ND ND 7.3 ND 1.0 1 ND ND ug/L 10/17/17 0.15 -- 5 ND -- ND 16 0.92 1 0.65 1 ND ND ND ND ND ND ND 7.4 ND 11 ND ND ug/L 04/16/18 0.15 -- 5 ND ND ND 19 1.3 1 0.83 1 ND ND ND ND ND ND ND 4.4 1 ND 22 ND ND ug/L 10/16/18 0.15 1.0 -- ND -- ND 16 0.91 1 0.82 1 ND ND ND ND ND ND ND 0.53 1 ND 2.7 ND ND ug/L 04/12/19 0.15 1.0 -- ND ND ND 12 0.56 1 ND ND ND ND ND ND ND ND 0.55 1 ND 14 ND ND ug/L 10/07/19 0.15 1.0 -- ND ND ND 13 0.69 1 0.62 1 ND ND ND ND ND ND ND 2.9 ND 14 ND ND ug/L 04/20/20 0.15 1.0 -- ND ND ND 9.3 0.62 1 0.56 1 ND ND ND ND ND ND ND 0.91 1 ND 10 ND ND ug/L 10/13/20 0.15 1.0 -- ND ND ND 8.7 0.55 1 0.80 1 ND ND ND ND ND ND ND 2.6 ND 4.8 ND ND ug/L 04/28/21 0.15 1.0 -- ND ND ND 5.6 ND ND ND ND ND ND ND ND ND ND ND 11 ND ND ug/L 10/14/21 0.15 1.0 -- ND ND ND ND ND ND ND ND ND ND ND 5.2 ND 1.5 ND 18 ND ND u /L 04/19/22 0.15 1.0 -- ND ND ND 3.6 ND ND ND ND ND ND ND ND ND ND ND 3.8 ND ND Bromomethane ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- SWS GPS = 10 ug/L ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- (No EPA MCL) ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND 2.1 1 ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.49 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.49 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.49 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/16/09 0.49 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.49 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 08/02/10 0.49 -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.49 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.58 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.58 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.14 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.14 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.14 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.14 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.14 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.14 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.14 -- 10 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.14 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.14 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.14 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.14 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.14 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.14 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.14 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Chloromethane ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 3 ug/L ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND 0.43 1 0.18 ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.23 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.34 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.34 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.34 -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.05 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.34 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0.40 1 0.44 1 0.34 ND ug/L 10/11/10 0.34 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND 0.61 1 ND ND ug/L 05/09/11 0.55 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.55 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.13 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.13 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.13 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.13 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.13 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.13 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.13 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.13 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.13 -- 1 ND 0.74 1 ND ND ND ND ND ND ND ND 0.56 1 ND ND 0.49 1 ND ND ND ND ug/L 10/17/17 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.13 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.13 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.13 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.13 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.13 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.13 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.13 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.13 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.13 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Methylene Chloride ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 5 ug/L ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 5 ug/L ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.24 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.53 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.53 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.53 -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.07 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.53 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.53 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.14 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.14 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.23 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.23 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.23 -- 1 ND ND ND ND 0.47 1 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.23 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.23 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.23 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.23 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.23 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.23 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.23 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.23 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.23 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.23 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.23 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.23 1.0 -- ND ND ND ND ND ND ND ND ND ND ND 0.46 B ND ND ND ND ND 0.52 1 ug/L 10/07/19 0.23 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.23 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.23 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.23 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.23 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1.1 ND u /L 04/19/22 0.23 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ►%%I) GOLDER 7of14 November 2022 TABLE 4 GL19131339.300 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method SWS Assessment Reporting Sample Practical Upgradient Monitoring Wells Compliance Downgradient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constituent Detection Reporting Blanks Units Date Quantitation Limit Well Limit Limit MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 2-Butanone ug/L 03/01/99 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 4000 ug/L ug/L 09/01/99 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 100 ND ND ND ND ND -- ND ND ND 680 ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 100 ND ND ND ND ND -- ND ND ND 130 ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01 /06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND 38 1 ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.44 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 1 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 1 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 1 -- 100 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 1 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 1 -- 100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 1 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 1.3 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 1.3 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 1.3 -- 100 ND ND ND ND ND -- ND ND ND 17 1 ND ND -- ND ND ND ND ND ug/L 10/25/12 1.3 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 1.3 -- 100 ND ND ND ND ND -- ND ND ND 11 1 ND ND ND ND ND ND ND ND ug/L 09/24/13 1.3 -- 100 ND ND ND ND ND 31 1 ND ND ND 4.3 1 ND ND ND ND ND ND ND ND ug/L 04/24/14 1.3 -- 100 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 1.3 -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 1.3 -- 100 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 1.3 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 1.3 -- 100 ND 1.3 ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1.3 ND ug/L 09/26/16 1.3 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 1.3 -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 1.3 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 1.3 -- 100 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 1.3 5.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 1.3 5.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 1.3 5.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 1.3 5.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 1.3 5.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 1.3 5.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 1.3 5.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 1.3 5.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Naphthalene ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND NC 2L = 6 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 12/01/08 0.39 -- 10 ND ND 2.3 1 ND 0.39 -- ND 5.6 1 ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.39 -- 10 ND ND ND ND ND -- ND 3.9 1 ND ND ND -- -- -- -- -- -- ND ug/L 10/11/10 0.39 -- 10 ND ND ND ND ND -- ND 2.7 1 ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.46 -- 10 ND ND ND ND ND -- 0.46 ND 0.46 0.46 ND ND -- -- -- -- -- ND ug/L 10/25/12 0.11 -- 10 ND ND ND ND ND -- ND 4.6 1 ND ND ND ND -- -- -- -- -- ND ug/L 09/24/13 0.11 -- 10 ND ND ND ND ND ND ND 1.6 1 ND ND ND ND -- -- -- -- -- ND ug/L 10/06/14 0.11 -- 10 ND ND ND ND ND ND ND 2.5 1 ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 0.11 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.11 -- 10 ND -- ND ND ND ND ND 1.5 1 ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.11 -- 10 ND -- ND ND ND ND ND 3.9 1 ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.11 1.0 -- ND -- ND ND ND ND ND 0.83 1 ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.11 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.11 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 0.11 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Styrene ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- SWS GPS = 70 ug/L ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- EPA MCL = 100 ug/L ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 04/01 /06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.20 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.26 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.26 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/16/09 0.26 -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.26 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND ND ND -- ug/L 04/29/10 0.082 -- 1 -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND ug/L 08/02/10 0.26 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.26 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.053 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.053 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.11 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.11 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.11 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.11 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.11 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.11 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.11 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.11 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.11 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.11 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.11 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.11 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.11 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.11 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.11 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.11 1.0 -- ND ND ND ND ND 0.20 1 ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.11 1.0 -- ND ND ND ND ND 0.49 1 ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.11 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.11 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.11 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.11 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Tetrachloroethene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND 12 ND ND ND -- ND -- -- -- ND NC 2L = 0.7 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND 12 ND ND -- -- -- -- -- -- ND EPA MCL = 5 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND 9 ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND 12 ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND 9.6 ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND 20 ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND 7 ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND 8.7 ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND 6.7 ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND 5.2 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- ND ND ND 5. ND -- ND ND 3.6 1.8 ND -- -- -- -- -- -- ND ug/L 09/26/07 -- ND ND ND ND -- N D -- 1.6 0.49 1 N D -- -- -- -- -- -- N D ug/L 04/29/08 0.36 -- 1 ND ND ND 3.5 ND -- ND ND 0.69 1 0.40 1 ND ND -- -- -- -- -- ND ug/L 12/01/08 0.36 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.36 -- 1 ND ND ND 3.2 ND -- ND ND 0.99 1 0.63 1 ND ND -- -- -- -- -- ND ug/L 10/16/09 0.36 -- 1 ND ND ND 5. ND -- N D N D 0.83 1 0.51 1 N D -- -- -- -- -- -- N D ug/L 04/28/10 0.099 -- 1 ND ND ND ND -- ND ND 0.56 1 0.57 1 ND ND -- -- -- -- -- ND ug/L 08/02/10 0.36 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.36 -- 1 ND ND 0.36 ND ND -- ND ND ND 0.57 1 ND ND -- -- ND ND ND ND ug/L 05/09/11 0.73 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.73 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.17 -- 1 ND ND ND ND ND -- ND ND ND 0.41 1 ND ND -- ND ND ND ND ND ug/L 10/25/12 0.17 -- 1 ND ND ND 2.7 ND -- ND ND 0.52 1 0.52 1 ND ND ND ND ND ND ND ND ug/L 05/02/13 0.17 -- 1 ND ND ND 2.4 ND -- ND ND ND 0.48 1 ND ND ND ND ND ND ND ND ug/L 09/24/13 0.17 -- 1 ND ND ND 2.1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.17 -- 1 ND ND ND ND ND -- ND ND ND 0.51 1 ND ND ND ND ND 0.44 1 ND ND ug/L 10/06/14 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.17 -- 1 ND ND ND 0.85 1 ND ND ND ND 0.40 1 ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.17 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.17 -- 1 ND ND ND 1.4 ND ND ND ND ND 0.44 1 ND ND ND ND ND ND ND ND ug/L 09/26/16 0.17 -- 1 ND -- ND 0.69 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.17 -- 1 ND ND ND 1.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.17 -- 1 ND -- ND 0.61 1 ND ND ND ND ND 0.40 1 ND ND ND ND ND ND ND ND ug/L 04/16/18 0.17 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.17 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.17 1.0 -- ND ND ND 0.42 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.17 1.0 -- ND ND ND ND ND ND ND ND ND 0.31 1 ND ND ND ND ND ND ND ND ug/L 04/20/20 0.17 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.17 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.17 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.17 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.17 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Toluene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 600 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 1000 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01 /06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND 0.36 1 ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.20 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.27 -- 1 ND ND ND ND ND -- ND 0.43 1 ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.27 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.27 -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.053 -- 1 ND ND ND ND ND -- ND ND 1.0 ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.27 -- 1 -- ND ND ND -- -- -- -- ND ND -- -- -- ND ND ND ND ND ug/L 10/11/10 0.27 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 05/09/11 0.85 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.85 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.14 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.14 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.14 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.14 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.14 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.14 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.14 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.14 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.14 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.14 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.14 -- 1 ND ND ND ND ND ND ND ND ND ND 8.2 ND ND ND ND ND ND ND ug/L 10/17/17 0.14 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.14 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.14 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.14 1.0 -- ND ND 0.15 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ►%%I) GOLDER 8of14 November 2022 TABLE 4 GL19131339.300 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method SWS Assessment Reporting Sample Practical Upgradient Monitoring Wells Compliance Downgradient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constituent Detection Reporting Blanks Units Date Quantitation Limit Well Limit Limit MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 Trichloroethene ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 3 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 5 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND 20 ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.25 -- 1 ND ND ND 3.6 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.38 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.38 -- 1 ND ND ND 3.0 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.38 -- 1 ND ND 0.91 J .7 ND -- ND ND 0.48 J ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.13 -- 1 ND ND 0.53 J 4.1 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.38 -- 1 -- ND 0.62 J 4.1 -- -- -- -- ND ND -- -- -- ND ND ND ND ND ug/L 10/11/10 0.38 -- 1 ND ND 0.48 J 3.6 ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.72 -- 1 ND ND ND 3.3 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.72 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.15 -- 1 ND ND ND 2.5 ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.15 -- 1 ND ND ND 2.9 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.15 -- 1 ND ND ND 3.2 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.15 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.40 J ND ND ug/L 04/24/14 0.15 -- 1 ND ND ND 2.5 ND -- ND ND ND ND ND ND ND ND ND 0.60 J ND ND ug/L 10/06/14 0.15 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.15 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.15 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.15 -- 1 ND ND ND 2.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.15 -- 1 ND -- ND 1.4 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.15 -- 1 ND ND ND 2.6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.15 -- 1 ND -- ND 1.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.15 -- 1 ND ND ND 1.4 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.15 1.0 -- ND -- ND 0.91 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.15 1.0 -- ND ND ND 1.2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.15 1.0 -- ND ND ND 0.75 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.15 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.15 1.0 -- ND ND ND 0.51 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.15 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.15 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.15 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Trichlorofluoromethane ug/L 03/01/99 -- -- 5 ND ND 38 34 ND -- ND 28 ND ND ND ND -- ND -- -- -- ND NC 2L = 2000 ug/L ug/L 09/01/99 -- -- 5 ND ND ND 30 ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 03/01/00 -- -- 5 ND ND ND 14 ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND 20 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND 14 ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND 23 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND 17 ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND 5.2 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND 14 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND 5.6 ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND 21 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND 7.0 ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND 10 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND 13 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.28 -- 1 ND ND ND 4.2 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.28 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.28 -- 1 ND ND ND 2.5 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.28 -- 1 ND ND ND 4.1 ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.15 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.28 -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ND ND ND ug/L 10/11/10 0.28 -- 1 ND ND ND 2.3 ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 0.66 -- 1 ND ND ND 1.2 ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.66 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.24 -- 1 ND ND ND 0.84 J ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.24 -- 1 ND ND ND 0.88 J ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.24 -- 1 ND ND ND 0.73 J ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.24 -- 1 ND ND ND 0.48 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.24 -- 1 ND ND ND 0.55 J ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.24 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.24 -- 1 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.24 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.24 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.24 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.24 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.24 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.24 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.24 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.24 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.24 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.24 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.24 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.24 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.24 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.24 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Vinyl Chloride ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 0.03 ug/L ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 2 ug/L ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- 12 -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- ND ND ND -- N D -- 0.44 J N D N D -- -- -- -- -- -- N D ug/L 04/29/08 0.3 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.3 -- 1 ND ND 0.73 J 3.9 0.44 J -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 02/13/09 0.3 -- 1 -- -- -- -- 0.47 J -- -- -- -- -- -- -- -- -- -- -- -- ND ug/L 04/17/09 0.3 -- 1 ND ND ND ND ND -- ND ND 0.45 J ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.3 -- 1 ND ND ND -- N D N D 0.47 J N D N D -- -- -- -- -- -- N D ug/L 04/28/10 0.083 -- 1 ND ND ND -- ND ND 0.80 J ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.3 -- 1 -- ND 1.5 4.8 -- -- -- -- ND ND -- -- -- 2.6 ND 0.49 J ND ND ug/L 10/11/10 0.3 -- 1 ND ND 1.4 5.4 0.44 J -- ND ND ND ND ND ND -- -- ND 0.68 J ND ND ug/L 05/09/11 0.6 -- 1 ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.6 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND ND 0.69 ND ND ND ND ug/L 04/17/12 0.32 -- 1 ND ND 0.52 J 2.1 ND -- ND ND ND ND ND ND -- 1.0 ND ND ND ND ug/L 10/25/12 0.32 -- 1 ND ND 1.3 ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.32 -- 1 ND ND ND 5.6 0.54 J -- ND ND ND ND ND ND ND 0.79 ND ND ND ND ug/L 09/24/13 0.32 -- 1 ND ND 0.43 J 3.6 ND ND ND ND ND ND ND ND ND 4.0 ND 1.3 ND ND ug/L 04/24/14 0.32 -- 1 ND ND ND 4.6 0.52 J -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.32 -- 1 ND ND ND 2.6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.32 -- 1 ND ND ND 2.5 0.44 J ND ND ND ND ND ND -- ND ND 0.71 1.6 0.71 ND ug/L 10/07/15 0.32 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND 0.72 J ND ND ug/L 04/20/16 0.32 -- 1 ND ND ND 4.2 ND ND ND ND ND ND ND ND ND ND ND 1.6 ND ND ug/L 09/26/16 0.32 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND 1.4 ND 1.5 ND ND ug/L 04/25/17 0.32 -- 1 ND ND ND 3.1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.32 -- 1 ND -- ND 2.5 ND ND ND ND ND ND ND ND ND 1.5 ND 1.7 ND ND ug/L 04/16/18 0.32 -- 1 ND ND ND 3.2 ND ND ND ND ND ND ND ND ND ND ND 3.0 ND ND ug/L 10/16/18 0.32 1.0 -- ND -- ND 2.4 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.32 1.0 -- ND ND ND 1.4 ND ND ND ND ND ND ND ND ND ND ND 1.1 ND ND ug/L 10/07/19 0.32 1.0 -- ND ND ND 2.2 ND ND ND ND ND ND ND ND ND ND ND 1.6 ND ND ug/L 04/20/20 0.32 1.0 -- ND ND ND 1.3 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.32 1.0 -- ND ND ND 1.7 ND ND ND ND ND ND ND ND ND 0.47 J ND ND ND ND ug/L 04/28/21 0.32 1.0 -- ND ND ND 1.3 ND ND ND ND ND ND ND ND ND ND ND 1.7 ND ND ug/L 10/14/21 0.32 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 2.6 ND ND u /L 04/19/22 0.32 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Xylenes (Total) ug/L 03/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND NC 2L = 500 ug/L ug/L 09/01/99 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND EPA MCL = 10000 ug/L ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/15/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/01/06 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/12/07 -- -- -- ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 04/29/08 0.67 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 12/01/08 0.4 -- 5 ND ND ND ND ND -- ND 3.1 J ND ND ND ND -- -- -- -- -- ND ug/L 04/17/09 0.4 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.4 -- 5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 04/28/10 0.22 -- 5 ND ND ND ND ND -- ND 1.8 J ND ND ND ND -- -- -- -- -- ND ug/L 08/02/10 0.4 -- 5 -- ND ND ND -- -- -- -- ND ND -- -- -- ND ND ND ND ND ug/L 10/11/10 0.4 -- 5 ND ND ND ND ND -- ND 4.0 J ND ND ND ND -- -- ND ND ND ND ug/L 05/09/11 2.1 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 2.1 -- 5 ND ND ND ND ND -- ND 5.5 ND ND ND ND ND ND ND ND ND ND ug/L 04/17/12 0.45 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ND ND ND ND ug/L 10/25/12 0.45 -- 5 ND ND ND ND ND -- ND 2.6 J ND ND ND ND ND ND ND ND ND ND ug/L 05/02/13 0.45 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/24/13 0.45 -- 5 ND ND ND ND ND ND ND 1.8 J ND ND ND ND ND ND ND ND ND ND ug/L 04/24/14 0.45 -- 5 ND ND ND ND ND -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/06/14 0.45 -- 5 ND ND ND ND ND ND ND 1.9 J ND ND ND ND ND ND ND ND ND ND ug/L 04/14/15 0.45 -- 5 ND ND ND ND ND ND ND ND ND ND ND -- ND ND ND ND ND ND ug/L 10/07/15 0.45 -- 5 ND -- ND ND ND ND ND 0.77 J ND ND ND ND ND ND ND ND ND ND ug/L 04/20/16 0.45 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.45 -- 5 ND -- ND ND ND ND ND 1.4 J ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.45 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.45 -- 5 ND -- ND ND ND ND ND 5.3 ND ND ND ND ND ND ND ND ND ND ug/L 04/16/18 0.45 -- 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.45 3.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/12/19 0.45 3.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.45 3.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/20/20 0.45 3.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.45 3.0 -- ND ND ND ND ND ND ND 0.49 J ND ND ND ND ND ND ND ND ND ND ug/L 04/28/21 0.45 3.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 0.45 3.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 04/19/22 0.45 3.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,4-Dioxane ug/L 10/16/18 1.2 2.0 -- ND -- 220 2.8 ND 100 4.6 85 1.5 J ND 350 4.1 1.3 J ND ND ND 4.4 ND NC 2L = 3 ug/L (verification event) ug/L 02/20/19 1.2 2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 8.4 ND ug/L 04/12/19 1.2 2.0 -- ND ND 120 2.6 ND 83 2.4 6.3 1.6 J ND 290 ND 3.9 ND 4.9 2.2 12 ND ug/L 10/07/19 1.2 2.0 -- ND ND 210 3.1 ND 79 9.7 120 11 1.4 J 300 24 5.0 2.3 6.1 2.7 19 ND ug/L 04/20/20 0.80 2.0 -- ND ND 170 2.5 1.0 J 69 3.2 33 5.8 1.1 J 310 4.0 3.5 1.0 J 0.93 J 2.4 28 ND ug/L 10/13/20 0.80 2.0 -- ND ND 180 2.3 0.88 J 62 ND 49 2.6 0.87 J 310 1.1 J 3.7 3.0 0.87 J 1.2 J 5.0 ND ug/L 04/28/21 0.80 2.0 -- ND ND 170 2.5 1.0 J 49 1.5 J 14 7.0 1.4 J 340 3.6 4.3 ND ND 2.7 21 ND ug/L 10/14/21 0.80 2.0 -- 0.80 J ND 220 1.9 J 1.0 J 59 2.2 75 11 ND 330 2.4 3.9 2.9 1.4 J 2.8 10 ND ug/L 04/19/22 0.80 2.0 -- ND ND 150 2.3 ND 45 ND 3.2 2.1 0.80 J 340 ND 3.4 1.7 J 1.1 J 1.7 J 5.5 ND Tetrahydrofuran ug/L 10/12/11 0.8 -- -- ND ND 11 ND ND -- ND 34 ND ND 0.82 J ND -- -- -- -- -- ND IMAC = 2,000 ug/L ug/L 04/17/12 0.8 -- -- ND ND 4.4 ND ND -- ND 4 ND ND ND ND -- -- -- -- -- ND (No EPA MCL) ug/L 10/25/12 0.8 -- -- ND ND ND ND ND -- ND ND ND ND ND ND -- ND ug/L 05/02/13 0.8 -- -- ND ND 5.5 ND ND -- ND ND ND 150 6.6 ND -- -- -- -- -- ND ug/L 09/24/13 0.8 -- -- ND ND 6.5 ND ND 10 ND 18 ND 18 6.4 ND -- -- -- -- -- ND ug/L 04/24/14 0.8 -- -- ND ND 4.9 ND ND -- ND ND ND 140 13 ND -- -- -- -- -- ND ug/L 10/06/14 0.8 -- -- ND ND ND ND ND 11 ND 29 ND ND 9.4 ND ND -- -- -- -- ND ug/L 04/14/15 0.8 -- -- ND ND 8.2 ND ND 5.3 ND 1.0 ND 5.6 4.4 -- ND -- -- -- -- ND ug/L 10/07/15 0.8 -- -- ND -- 21 ND ND 7.2 ND 32 ND ND 9.8 -- ND ND ND ND ND ND ug/L 04/20/16 0.8 -- -- ND ND 7.1 ND ND 1.4 ND ND ND 50 7.0 ND ND ND ND ND ND ND ug/L 09/26/16 0.8 -- -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 04/25/17 0.8 -- -- ND ND 5.3 ND ND 6.7 ND ND ND 140 13 ND ND ND ND ND ND ND ug/L 10/17/17 0.53 -- -- ND -- 16 ND ND 4.2 ND 54 ND 20 12 ND ND ND ND ND ND ND ug/L 10/16/18 0.53 1.0 -- ND -- 5.1 ND ND ND ND 2.3 ND ND 9.7 ND -- -- -- -- -- ND ug/L 04/12/19 0.53 1.0 -- ND ND 4.9 ND ND ND ND ND ND ND 11 ND -- -- -- -- -- ND ug/L 10/07/19 0.53 1.0 -- ND ND 15 ND ND 4.9 4.3 9.1 ND ND 16 ND ND ND ND ND ND ND ug/L 04/20/20 0.53 1.0 -- ND ND ND ND ND ND ND ND ND ND 16 ND -- -- -- -- -- ND ug/L 10/13/20 0.53 1.0 -- ND ND 9.5 ND ND ND ND 9.0 ND ND 18 ND -- -- -- -- -- ND ug/L 04/28/21 0.53 1.0 -- ND ND 8.0 ND ND ND ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/14/21 0.53 1.0 -- ND ND 19 ND ND ND ND ND ND ND ND ND -- -- -- -- -- ND u /L 04/19/22 0.53 1.0 -- ND ND 13 ND ND ND ND ND ND ND 21 ND ND ND ND ND ND ND ►%%I) GOLDER 9of14 November 2022 TABLE 4 GL19131339.300 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method SWS Assessment Detected Monitoring Constituent Reporting Sample Detection Practical Reporting Upgradient Monitoring Wells Compliance Downgradient Monitoring Wells Monitoring Sentinel Monitoring Wells Blanks Units Date Limit Quantitation Limit Limit Well MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 Di-n-butylphthalate ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND NC 2L = 700 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- ND ND ND 1.1 J ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 12/01/08 1.6 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 1.4 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/11/10 1.5 -- 10 ND ND 4.1 J ND ND -- ND 1.9 J 1.8 J 4.0 J 2.7 J ND -- -- -- -- -- ND ug/L 10/12/11 1.5 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 1.5 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 09/24/13 1.5 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/06/14 1.5 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 1.5 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 1.5 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 2.8 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 2.8 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 2.8 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 2.8 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 2.8 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 4-Chloro-3-methylphenol ug/L 09/01/99 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No NC 2L) ug/L 09/01/00 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 09/01/01 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/02 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/04 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/05 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 12/01/08 1.5 -- 20 ND ND ND ND ND -- ND 2.8 J ND ND ND ND -- -- -- -- -- ND ug/L 02/13/09 1.4 -- 20 -- -- -- -- -- -- -- 2.4 J -- -- -- -- -- -- -- -- -- ND ug/L 10/16/09 1.6 -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/11/10 1.5 -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 1.5 -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 1.5 -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 09/24/13 1.5 -- 20 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/06/14 1.5 -- 20 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 1.5 -- 20 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 1.5 -- 20 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 2.4 -- 20 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 2.4 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 2.4 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 2.4 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 2.4 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Dibenzofuran ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND IMAC = 28 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 12/01/08 2.1 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 1.3 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/11/10 1.4 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 1.4 -- 10 ND ND ND ND ND -- ND ND ND 2.4 J ND ND -- -- -- -- -- ND ug/L 10/25/12 1.4 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 09/24/13 1.4 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/06/14 1.4 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 1.4 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 1.4 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 2.6 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 2.6 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 2.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 2.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 2.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Thionazin ug/L 09/01/99 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No NC 2L) ug/L 09/01/00 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 09/01/01 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/02 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/04 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/05 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 12/01/08 2 -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 1.2 -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/11/10 2.3 -- 20 ND ND 2.3 ND ND -- ND ND ND ND ND ND -- -- ND ND ND ND ug/L 10/12/11 2.3 -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 2.3 -- 20 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 09/24/13 2.3 -- 20 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/06/14 2.3 -- 20 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 2.3 -- 20 -- -- ND ND ND ND ND ND ND ND ND -- ND ND -- ND -- ND ug/L 09/26/16 2.3 -- 20 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 2.3 -- 20 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 2.3 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 2.3 10 -- ND ND ND ND ND ND ND ND ND ND ND ND 7.1 J ND ND ND ND ND ug/L 10/13/20 2.3 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/14/21 2.3 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 2.4 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 2.4 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 2,6-Dinitrotolene ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No NC 2L) ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 12/01/08 1.4 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 1.0 -- 10 ND ND ND ND ND __ ND ND ND ND ND __ __ __ __ -- -- ND ug/L 10/11/10 1.5 -- 10 ND ND 1.9 J ND ND -- ND 2.8 J ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 1.5 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 1.5 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 09/24/13 1.5 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/06/14 1.5 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 1.5 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 1.5 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 2.5 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 2.5 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 2.5 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 2.5 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 2.5 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Disulfoton ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND NC 2L = 0.3 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- ND ND ND ND ND -- 1.6 J -- ND ND ND -- -- -- -- -- -- ND ug/L 12/01/08 1.0 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/11/10 1.1 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 1.1 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 1.1 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 09/24/13 1.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/06/14 1.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 1.1 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 1.1 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 2.0 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 2.0 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 2.0 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 2.0 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 2.0 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Bis(2-ethylhexyl)phthalate ug/L 09/01/99 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND NC 2L = 3 ug/L ug/L 09/01/00 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 09/01/01 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/02 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/04 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/05 -- -- 20 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 20 29 ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 12/01/08 2.0 -- 15 ND 4.2 J ND ND ND -- ND ND ND 2.0 J ND ND -- -- -- -- -- ND ug/L 10/16/09 2.6 -- 15 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/11/10 1.7 -- 15 ND 2.0 J ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 1.7 -- 15 ND ND ND ND ND -- ND ND ND ND ND 2.2 J -- -- -- -- -- ND ug/L 10/25/12 1.7 -- 15 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 09/24/13 1.7 -- 15 ND 13 J ND 1.8 J ND ND ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/06/14 1.7 -- 15 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 1.7 -- 15 1.8 J -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 1.7 -- 15 ND -- ND 3.0 J ND 5.0 J 2.3 J ND 3.3 J ND 2.6 J ND ND ND ND ND ND ND u g / L 0 3 /21 / 17 1.7 -- 15 -- -- -- ND -- ND -- -- ND -- -- -- -- -- -- -- -- ND ug/L 10/17/17 1.9 -- 15 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 1.9 5.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 6.3 ug/L 10/07/19 1.9 5.0 -- 3.7 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 1.9 5.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 1.9 5.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Hexachlorobutadiene ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- NC 2L = 0.4 ug/L ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- (No EPA MCL) ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 3.1 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.35 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/11/10 1.2 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.88 -- 10 ND ND ND ND ND -- 1.2 ND 0.88 0.88 ND ND -- -- -- -- -- ND ug/L 10/12/11 1.2 -- 10 ND ND ND ND ND -- 0.88 N D 1.2 1.2 N D N D -- -- -- -- -- -- ug/L 10/25/12 1.2 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 1.2 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 1.2 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 1.2 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 1.2 -- 10 ND -- 0.22 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 2.8 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 2.8 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 2.8 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 2.8 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 2.8 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Hexachlorocyclopentadiene ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- (No NC 2L) ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- EPA MCL = 50 ug/L ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 2.5 -- 10 ND ND ND ND ND -- ND 5.6 J ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 1.0 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/11/10 1.3 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/12/11 1.3 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 1.3 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 1.3 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 1.3 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 1.3 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 1.3 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 2.7 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 2.7 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 2.7 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 2.7 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 1 10/14/21 1 2.7 1 10 1-- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ►%%I) GOLDER 10of14 November 2022 TABLE 4 GL19131339.300 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method SWS Assessment Detected Monitoring Constituent Reporting Sample Detection Practical Reporting Upgradient Monitoring Wells Compliance Downgradient Monitoring Wells Monitoring Sentinel Monitoring Wells Blanks Units Date Limit Quantitation Limit Limit Well MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 2-Methylnaphthalene ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- NC 2L = 30 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- (No EPA MCL) ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 2.9 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/16/09 1.3 -- 10 ND ND ND ND ND -- ND 1.6 1 ND ND ND -- -- -- -- -- -- -- ug/L 10/11/10 1.5 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/12/11 1.5 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 1.5 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 1.5 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 1.5 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 1.5 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 1.5 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 2.8 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 2.8 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 2.8 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 2.8 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 2.8 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 3-Nitroaniline ug/L 09/01/99 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- (No NC 2L) ug/L 09/01/00 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- (No EPA MCL) ug/L 09/01/01 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- 4.7 1 -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 1.3 -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/16/09 1.6 -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/11/10 2.1 -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/12/11 2.1 -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 2.1 -- 50 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 2.1 -- 50 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 2.1 -- 50 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 2.1 -- 50 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 2.1 -- 50 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 2.6 -- 50 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 2.6 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 2.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 2.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 2.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 5-Nitro-o-Toluidine ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- (No NC 2L) ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- (No EPA MCL) ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- 2.8 1 -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 2 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/16/09 0.6 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/11/10 3.2 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/12/11 3.2 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 3.2 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 3.2 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 3.2 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 3.2 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 3.2 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 3.2 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 3.2 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 3.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 3.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 3.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND N-Nitroso-di-n-propylamine ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- (No NC 2L) ug/L 12/01/08 1.5 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- (No EPA MCL) ug/L 10/16/09 1.8 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/11/10 1.5 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/12/11 1.5 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 1.5 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 1.5 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 1.5 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 1.5 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 1.5 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 2.3 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 2.3 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 2.3 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 2.3 10 -- ND ND ND ND ND ND ND ND ND ND ND 6.6 1 ND ND ND ND ND ND u /L 10/14/21 2.3 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Phenol ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND NC 2L = 30 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 12/01/08 0.71 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 1.2 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/11/10 1.4 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 1.4 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 1.4 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 09/24/13 1.4 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/06/14 1.4 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 1.4 -- 10 ND -- ND ND ND ND 2.9 1 1.5 1 ND 1.8 1 ND ND ND ND ND ND ND ND ug/L 09/26/16 1.4 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 1.7 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 1.7 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 1.7 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 1.7 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 1.7 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND o-Toluidine ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No NC 2L) ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND ug/L 12/01/08 1.0 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 1.5 -- 10 ND ND ND ND ND -- ND 2.5 1 ND ND ND -- -- -- -- -- -- ND ug/L 10/11/10 1.1 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 1.1 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/25/12 1.1 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 09/24/13 1.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/06/14 1.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 1.1 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 1.1 -- 10 ND -- 1.3 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND (verification event) ug/L 03/21/17 1.1 -- 10 -- -- ND -- -- -- -- ND -- -- -- -- -- -- -- -- -- ND ug/L 10/17/17 1.6 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 1.6 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 1.6 10 -- ND ND 1.7 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND (verification event) ug/L 01/20/20 1.6 10 -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ug/L 10/13/20 1.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 1.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1,2,4-Trichlorobenzene ug/L 03/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- NC 2L = 70 ug/L ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- (No EPA MCL) ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- ND -- -- -- -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 0.36 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/16/09 0.36 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND ug/L 10/11/10 0.36 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 10/12/11 0.58 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 0.14 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND ug/L 09/24/13 0.14 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 0.14 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 0.14 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 09/26/16 0.14 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/17/17 0.14 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.14 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.14 1.0 -- ND ND 0.16 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 0.14 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Diethylphthalate ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- NC 2L = 6000 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- (No EPA MCL) ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 1.4 -- 10 ND ND ND ND ND -- ND 2.3 1 ND ND ND ND -- -- -- -- -- -- ug/L 10/16/09 0.61 -- 10 ND ND ND ND ND -- ND 2.5 1 1.0 1 ND ND -- -- -- -- -- -- -- ug/L 10/11/10 2.1 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/12/11 2.1 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 2.1 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 2.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 2.1 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 2.1 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 2.1 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 2.4 -- 10 ND -- ND ND ND ND ND 39 ND ND ND ND ND ND ND ND ND ND (verification event) ug/L 12/21/17 2.4 -- 10 -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- ND ug/L 10/16/18 2.4 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 2.4 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Endosulfan I ug/L 09/01/99 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- NC 2L = 40 ug/L ug/L 09/01/00 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- (No EPA MCL) ug/L 09/01/01 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 0.1 ND ND 0.25 ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 0.025 -- 0.1 ND ND ND ND ND -- ND 0.068 B ND ND ND ND -- -- -- -- -- -- ug/L 02/13/09 0.025 -- 0.1 -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- ug/L 10/16/09 0.025 -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/11/10 0.016 -- 0.1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/12/11 0.041 -- 0.1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 0.045 -- 0.1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 0.045 -- 0.1 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 0.045 -- 0.1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 0.045 -- 0.1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 0.045 -- 0.1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 0.045 -- 0.1 ND -- 0.19 ND ND ND ND 0.14 ND ND ND ND ND ND ND ND ND ND ug/L 12/21/17 0.045 -- 0.1 -- -- ND -- -- -- -- ND -- -- -- -- -- -- -- -- -- ND ug/L 10/16/18 0.045 0.05 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.045 0.05 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.045 0.05 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 0.045 0.05 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Endosulfan sulfate ug/L 09/01/99 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- IMAC = 40 ug/L ug/L 09/01/00 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- (No EPA MCL) ug/L 09/01/01 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 0.025 -- 0.1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/16/09 0.025 -- 0.1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/11/10 0.012 -- 0.1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/12/11 0.025 -- 0.1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 0.032 -- 0.1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 0.032 -- 0.1 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 0.032 -- 0.1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 0.032 -- 0.1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 0.032 -- 0.1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 0.032 -- 0.1 ND -- 0.16 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u g/L 12/21/17 0.032 -- 0.1 -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND ug/L 10/16/18 0.032 0.05 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.032 0.05 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.032 0.05 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 0.032 0.05 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ►%%I) GOLDER 11 of 14 November 2022 TABLE 4 GL19131339.300 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method SWS Assessment Reporting Sample Practical Upgradient Monitoring Wells Compliance Downgradient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constituent Detection Reporting Blanks Units Date Quantitation Limit Well Limit Limit MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 Chlordane (total) ug/L 09/01/99 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- NC 2L = 0.1 ug/L ug/L 09/01/00 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- EPA MCL = 2 ug/L ug/L 09/01/01 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 0.02 -- ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 12/01/08 0.02 -- 0.5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/16/09 0.2 -- 0.5 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/11/10 0.2 -- 0.5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/12/11 0.2 -- 0.5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 0.2 -- 0.5 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 0.2 -- 0.5 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 0.2 -- 0.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/15 0.2 -- 0.5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 0.37 -- 0.5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 0.37 -- 0.5 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.37 0.50 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.37 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.54 ND ug/L 10/13/20 0.37 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 0.37 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Chlordane -alpha ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- NC 2L = 0.1 ug/L ug/L 12/01/08 0.025 -- NE ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- EPA MCL = 2 ug/L ug/L 10/16/09 0.025 -- NE ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/25/12 0.048 -- NE ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 0.048 -- NE ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 0.048 -- NE ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 0.048 -- NE ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 0.048 -- NE ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 0.048 -- -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.048 0.05 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.048 0.05 -- ND ND ND ND ND ND ND ND ND ND 0.39 ND ND ND ND ND 0.54 ND (verification event) ug/L 01/20/20 0.048 0.05 -- -- -- ND -- -- -- -- -- -- -- ND -- -- -- -- -- ND -- ug/L 10/13/20 0.048 0.05 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 0.048 0.05 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND PCBs ug/L 09/01/99 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- IMAC = 0.09 ug/L ug/L 09/01/00 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- EPA MCL = 0.5 ug/L ug/L 09/01/01 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 0.43 -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/16/09 0.075 -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/11/10 0.19 -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/12/11 0.19 -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 0.19 -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 0.43 -- 2 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 0.43 -- 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 0.43 -- 2 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 0.48 -- 2 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 0.48 -- 2 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.48 0.50 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.48 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.48 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 0.48 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 2,4-D ug/L 09/01/99 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- NC 2L = 70 ug/L ug/L 09/01/00 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- EPA MCL = 70 ug/L ug/L 09/01/01 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 0.13 -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/16/09 0.091 -- 2 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/11/10 0.091 -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/12/11 0.15 -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 0.16 -- 2 ND ND ND ND ND -- ND ND ND ND ND 0.16 J -- -- -- -- -- -- ug/L 09/24/13 0.16 -- 2 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 0.27 -- 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 0.27 -- 2 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 0.27 -- 2 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 0.27 -- 2 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.27 0.50 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.27 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.27 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 0.27 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Pentachlorophenol ug/L 09/01/99 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- NC 2L = 0.3 ug/L ug/L 09/01/99 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- EPA MCL = 1 ug/L ug/L 09/01/00 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/00 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/01 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/01 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 50 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 0.056 -- 25 ND ND ND ND ND -- ND ND ND ND 0.07 J ND -- -- -- -- -- -- ug/L 10/16/09 0.043 -- 25 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/11/10 0.043 -- 25 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/12/11 0.13 -- 25 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 0.19 -- 25 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 0.19 -- 25 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 0.19 -- 25 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 0.19 -- 25 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 0.19 -- 25 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 0.19 -- 25 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.19 0.50 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.19 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.19 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 0.19 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 2,4,5,-TP (Silvex) ug/L 09/01/99 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- NC 2L = 50 ug/L ug/L 09/01/00 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- EPA MCL = 50 ug/L ug/L 09/01/01 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 0.087 -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/16/09 0.056 -- 2 ND ND ND ND ND -- 0.085 J 0.45 J ND ND ND -- -- -- -- -- -- -- ug/L 10/11/10 0.056 -- 2 ND ND ND ND ND -- 0.088 J ND ND ND ND ND -- -- -- -- -- -- ug/L 10/12/11 0.15 -- 2 ND ND ND ND ND -- ND 0.29 J ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 0.2 -- 2 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 0.2 -- 2 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 0.44 -- 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 0.44 -- 2 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 0.44 -- 2 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 0.44 -- 2 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 0.44 0.50 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 0.44 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 0.44 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 0.44 0.50 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Cyanide (total) ug/L 09/01/99 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- NC 2L = 70 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- EPA MCL = 200 ug/L ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/02 -- -- 10 ND ND ND ND 10 -- ND ND 20 ND ND -- -- -- -- -- -- -- ug/L 10/01/03 -- -- 10 10 ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ND 10 ND ND ND -- -- -- -- -- -- -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 09/26/07 -- -- -- ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- -- ug/L 12/01/08 4.0 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/16/09 4.7 -- 10 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- -- ug/L 10/11/10 5.0 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/12/11 3.9 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/25/12 4.9 -- 10 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- -- ug/L 09/24/13 4.9 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- ug/L 10/06/14 4.9 -- 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/07/15 4.9 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 09/26/16 4.9 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- ug/L 10/17/17 4.9 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/16/18 4.9 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/07/19 4.9 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ug/L 10/13/20 4.9 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND u /L 10/14/21 4.9 10 -- -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Sulfide (total) mg/L 09/01/99 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No NC 2L) mg/L 09/01/00 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND (No EPA MCL) mg/L 09/01/01 -- -- 1 ND ND ND 1 ND -- ND ND ND ND ND -- -- -- -- -- -- ND mg/L 09/01/02 -- -- 1 ND ND ND 5 ND -- ND ND ND ND ND -- -- -- -- -- -- ND mg/L 10/01/03 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND mg/L 09/01/04 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND mg/L 10/01/05 -- -- 1 ND ND ND ND ND -- ND 2 ND ND ND -- -- -- -- -- -- ND mg/L 10/01/06 -- -- 1 ND ND ND ND ND -- ND ND ND ND ND -- -- -- -- -- -- ND mg/L 09/26/07 -- -- 1 ND ND ND ND ND -- ND -- ND ND ND -- -- -- -- -- -- ND mg/L 05/05/08 0.10 -- 1 -- -- ND ND ND -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 12/01/08 0.10 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND mg/L 10/16/09 0.031 -- 1 ND ND ND ND ND -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 04/29/10 0.031 -- 1 -- ND ND ND ND -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 08/02/10 0.031 -- 1 -- ND ND ND ND -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 10/11/10 0.01 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- ND ND ND ND mg/L 10/12/11 0.01 -- 1 ND ND ND ND ND -- ND 0.012 J ND ND ND 0.013 J -- -- -- -- -- ND mg/L 10/25/12 0.01 -- 1 ND ND ND ND ND -- ND ND ND ND ND ND -- -- -- -- -- ND mg/L 10/25/12 0.01 -- 1 -- ND ND -- ND -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 05/02/13 0.01 -- 1 -- ND ND -- ND -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/24/13 0.01 -- 1 ND ND ND ND ND ND 0.088 J ND ND ND ND ND -- -- -- -- -- ND mg/L 09/24/13 0.01 -- 1 -- ND ND -- ND -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/14 0.01 -- 1 -- ND ND -- ND -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/02/14 0.01 -- 1 -- ND ND -- ND -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/06/14 0.01 -- 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.04 J ND ND ND mg/L 04/14/15 0.01 -- 1 -- ND ND -- ND -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/15 0.01 -- 1 ND -- ND 0.059 J ND ND ND 0.059 J ND ND ND ND ND mg/L 04/18/16 0.01 -- 1 -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/26/16 0.01 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ND ND 0.36 J ND ND ND mg/L 04/25/17 0.01 -- 1 -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/17/17 0.01 -- 1 ND -- ND ND ND ND ND ND ND ND ND 0.042 J ND ND 0.6 J ND ND ND mg/L 04/16/18 0.01 -- 1 -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/16/18 0.01 0.1 -- ND -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND mg/L 04/12/ 19 0.01 0.1 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/19 0.01 0.1 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND mg/L 04/20/20 0.01 0.1 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/13/20 0.01 0.1 -- ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- mg/L 10/14/21 0.01 0.1 -- ND ND 0.01 J ND ND ND ND ND ND ND ND ND ND ND ND ND ND mg/L 04/19/22 0.01 0.1 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- Chloride mg/L 05/05/08 2.4 -- -- -- -- 450 B 12 -- -- -- -- 4.3 J 4.8 J -- -- -- 6.0 -- -- -- -- NC 2L = 250 mg/L mg/L 10/16/09 0.18 -- -- -- 3.3 J 410 11 -- -- -- -- 58 4.7 J -- -- -- 10 -- -- -- ND EPA MCL = 250 mg/L mg/L 04/29/10 0.18 -- -- -- 3.9 J 390 12 -- -- -- -- ND 4.8 J -- -- -- 12 -- -- -- ND mg/L 08/02/10 180 -- -- -- 3.7 J 410 12 -- -- -- -- 16 4.8 J -- -- -- 11 -- -- -- ND mg/L 10/25/12 4.3 -- -- -- 2.6 B 570 B -- -- -- -- -- -- -- -- -- -- 12 B -- 6.1 B -- -- mg/L 05/02/13 4.3 -- -- -- 2.7 B 340 B -- -- -- -- -- -- -- -- -- -- 13 B -- 6.9 B -- -- mg 09/24/13 22 -- -- -- -- -- -- -- -- 14 -- 7.8 -- ND mg/L 04/25/14 22 -- -- -- 2.8 J 440 -- -- -- -- -- -- -- -- -- -- 7.7 -- 7.3 -- ND mg/L 10/02/14 22 -- -- -- 3.1 J 5 -- -- -- -- -- -- -- -- -- -- 14 -- 9.0 -- ND mg/L 04/14/15 22 -- -- -- 3.1 J 630 -- -- -- -- -- -- -- -- -- -- 16 -- 11 -- ND mg/L 10/07/15 22 -- -- -- -- 570 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND mg 04/18/16 -- -- -- 2.3 J -- -- -- -- -- -- -- 14 -- 10 -- ND mg/L 09/26/16 2.2 -- -- -- -- 510-- -- -- -- -- -- -- -- -- 14 -- 13 -- ND mg/L 04/25/17 2.9 -- -- -- 1.5 J 630 -- -- -- -- -- -- -- -- -- -- 16 -- 7.8 -- ND mg/L 10/17/17 2.2 -- -- -- -- 510 -- -- -- -- -- -- -- -- -- -- 17 -- 19 -- ND mg/L 04/16/18 2.2 -- -- -- ND 760 -- -- -- -- -- -- -- -- -- -- 18 -- 16 -- ND mg/L 10/16/18 2.2 5.0 -- -- -- 550 -- -- -- -- -- -- -- -- -- -- 6.3 -- 9.3 -- ND mg/L 04/12/19 2.2 5.0 -- -- 3.1 J 380 -- -- -- -- -- -- -- -- -- -- 23 -- 21 -- ND mg/L 10/07/19 2.2 5.0 -- -- 2.4 J 390 -- -- -- -- -- -- -- -- -- -- 28 -- 17 -- ND mg/L 04/20/20 2.2 5.0 -- -- 4.0 J 570 -- -- -- -- -- -- -- -- -- -- 34 J -- 36 -- -- mg/L 10/13/20 2.2 5.0 -- -- 3.2 J 430 -- -- -- -- -- -- -- -- -- -- 38 -- 13 -- -- mg/L 04/28/21 2.2 5.0 -- -- 3.3 J 400 -- -- -- -- -- -- -- -- -- -- 24 -- 25 -- -- mg/L 10/14/21 2.2 5.0 -- -- 3.8 J 500 -- -- -- -- -- -- -- -- -- -- 40 -- 22 -- -- m /L 04/19/22 2.2 5.0 -- -- 11 ND -- -- -- -- -- -- -- -- -- -- 32 -- 15 -- -- ►%%I) GOLDER 12of14 November 2022 TABLE 4 GL19131339.300 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method SWS Assessment Reporting Sample Practical Upgradient Monitoring Wells Compliance Downgradient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constituent Detection Reporting Blanks Units Date Quantitation Limit Well Limit Limit MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 Nitrate as N mg/L 05/05/08 0.01 -- 10 -- -- ND ND -- -- -- -- 2.2 J ND -- -- -- 0.39 J -- -- -- ND NC 2L = 10 mg/L mg/L 10/16/09 0.0056 -- 10 -- 0.017 J 0.028 J ND -- -- -- -- 0.33 J 0.28 J -- -- -- 0.077 J -- -- -- ND EPA MCL = 10 mg/L mg/L 04/29/10 0.021 -- 10 -- ND ND ND -- -- -- -- ND 0.23 J -- -- -- 0.12 J -- -- -- ND mg/L 08/02/10 0.025 -- 10 -- ND 0.062 J 0.029 J -- -- -- -- 0.13 J 0.14 J -- -- -- 0.13 J -- -- -- ND mg/L 10/25/12 0.025 -- 10 -- ND 0.036 J -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 05/02/13 0.025 -- 10 -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/24/13 0.025 -- 10 -- 0.17 J 0.046 J -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/14 0.025 -- 10 -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/02/14 0.025 -- 10 -- ND 0.054 J -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/14/15 0.025 -- 10 -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- 0.042 J -- ND mg/L 10/07/15 0.025 -- 10 -- -- 0.22 J -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND mg/L 04/18/16 0.025 -- 10 -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/26/16 0.025 -- 10 -- -- ND -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/17 0.025 -- 10 -- ND 0.046 J -- -- -- -- -- -- -- -- -- -- 0.16 J -- 1.4 J -- ND mg/L 10/17/17 0.025 -- 10 -- -- 0.071 J -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/16/18 0.025 -- 10 -- ND 0.052 J -- -- -- -- -- -- -- -- -- -- 0.046 J -- ND -- ND mg/L 10/16/18 0.025 0.1 -- -- -- 0.052 J -- -- -- -- -- -- -- -- -- -- 0.2 -- 2.4 -- ND mg/L 04/12/19 0.041 0.1 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- 0.042 mg/L 10/07/19 0.025 0.1 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/20/20 0.041 0.1 -- -- ND 0.052 J -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/13/20 0.041 0.1 -- -- ND 0.27 -- -- -- -- -- -- -- -- -- -- ND -- 0.79 -- -- mg/L 04/28/21 0.041 0.1 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/14/21 0.041 0.1 -- -- ND 0.077 J -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- m /L 04/19/22 0.041 0.1 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- 0.33 -- -- Sulfate as SO4 mg/L 05/05/08 0.25 -- 250 -- -- 25 J 25 J -- -- -- -- 4.7 J -- -- -- -- 40 J -- -- -- ND NC 2L = 250 mg/L mg/L 10/16/09 0.078 -- 250 -- 2.0 J 12 J 27 J -- -- -- -- 23 J 100 J -- -- -- 16 J -- -- -- ND EPA MCL = 250 mg/L mg/L 04/29/10 0.12 -- 250 -- 0.12 14 J 19 J -- -- -- -- 14 J 100 J -- -- -- 27 J -- -- -- ND mg/L 08/02/10 0.12 -- 250 -- 1.5 J 12 J 21 J -- -- -- -- 12 J 100 -- -- -- 15 J -- -- -- ND mg/L 10/25/12 0.04 -- 250 -- 2.0 J 11 J -- -- -- -- -- -- -- -- -- -- 12 J -- 22 J -- ND mg/L 05/02/13 0.04 -- 250 -- 1.8 B 19 B -- -- -- -- -- -- -- -- -- -- 11 B -- 21 B -- ND mg/L 09/24/13 0.04 -- 250 -- 1.7 J 14 J -- -- -- -- -- -- -- -- -- -- 8.9 J -- 21 J -- ND mg/L 04/25/14 2.9 -- 250 -- ND 20 J -- -- -- -- -- -- -- -- -- -- 35 J -- 18 J -- ND mg/L 10/02/14 2.9 -- 250 -- 2.9 14 J -- -- -- -- -- -- -- -- -- -- 12 J -- 22 J -- ND mg/L 04/14/15 2.9 -- 250 -- 2.9 22 J -- -- -- -- -- -- -- -- -- -- 12 J -- 26 J -- ND mg/L 10/07/15 2.9 -- 250 -- -- 15 J -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND mg/L 04/18/16 2.9 -- 250 -- 2.9 16 J -- -- -- -- -- -- -- -- -- -- 36 J -- 26 J -- ND mg/L 09/26/16 2.9 -- 250 -- -- 11 J -- -- -- -- -- -- -- -- -- -- 13 -- 27 J -- ND mg/L 04/25/17 5.8 -- 250 -- 0.25 J 31 J -- -- -- -- -- -- -- -- -- -- 20 J -- 23 J -- ND mg/L 10/17/17 2.9 -- 250 -- -- 8.9 J -- -- -- -- -- -- -- -- -- -- 14 J -- 24 J -- ND mg/L 04/16/18 2.9 -- 250 -- ND ND -- -- -- -- -- -- -- -- -- -- 18 J -- 23 J -- ND m g/L 10/16/18 2.9 5.0 -- -- -- ND -- -- -- -- -- -- -- -- -- -- 19 -- 19 -- N D mg/L 04/12/19 2.9 5.0 -- -- ND 16 -- -- -- -- -- -- -- -- -- -- 59 -- 27 -- ND mg/L 10/07/19 2.9 5.0 -- -- ND 5.3 -- -- -- -- -- -- -- -- -- -- 18 -- 25 -- ND mg/L 04/20/20 2.9 5.0 -- -- 3.0 J ND -- -- -- -- -- -- -- -- -- -- 49 -- 36 -- -- mg/L 10/13/20 2.9 5.0 -- -- ND ND -- -- -- -- -- -- -- -- -- -- 13 -- 23 -- -- mg/L 04/28/21 2.9 5.0 -- -- ND 200 -- -- -- -- -- -- -- -- -- -- 51 -- 39 -- -- m g/L 10/14/21 2.9 5.0 -- -- ND 4.7 J -- -- -- -- -- -- -- -- -- -- 13 -- 35 -- -- m /L 04/19/22 2.9 5.0 -- -- 3.1 J 11 -- -- -- -- -- -- -- -- -- -- 28 -- 22 -- -- Total Alkalinity as CaCO3 mg/L 10/16/09 42 -- -- -- 19 320 370 -- -- -- -- 59 99 -- -- -- 190 -- -- -- ND (No NC 2L) mg/L 04/29/10 32 -- -- -- 16 350 330 -- -- -- -- 70 110 -- -- -- 110 -- -- -- ND (No EPA MCL) mg/L 08/02/10 40 -- -- -- 20 580 460 -- -- -- -- 51 100 -- -- -- 320 -- -- -- ND mg/L 10/25/12 60 -- -- -- 24 740 -- -- -- -- -- -- -- -- -- -- 360 -- 230 -- ND mg/L 05/02/13 70 -- -- -- 17 570 -- -- -- -- -- -- -- -- -- -- 42 -- 240 -- ND mg/L 09/24/13 70 -- -- -- 26 780 -- -- -- -- -- -- -- -- -- -- 450 -- 260 -- ND mg/L 04/25/14 70 -- -- -- 19 600 -- -- -- -- -- -- -- -- -- -- 19 -- 220 -- ND mg/L 10/02/14 70 -- -- -- 24 830 -- -- -- -- -- -- -- -- -- -- 420 -- 310 -- ND mg/L 04/14/15 140 -- -- -- 21 690 -- -- -- -- -- -- -- -- -- -- 380 -- 330 -- ND mg/L 10/07/15 84 -- -- -- -- 1000 -- -- -- -- -- -- -- -- -- -- 490 -- 190 -- ND mg/L 04/18/16 140 -- -- -- 15 840 -- -- -- -- -- -- -- -- -- -- 100 -- 320 -- ND mg/L 09/26/16 70 -- -- - 960 410 360 ND mg/L 04/25/17 14 -- -- -- 28 880 -- -- -- -- -- -- -- -- -- -- 400 -- 81 -- ND mg/L 10/17/17 70 -- -- - 1100 mg/L 04/16/18 14 -- -- -- 19 810 -- -- -- -- -- -- -- -- -- -- 310 -- 400 -- ND mg/L 10/16/18 14 15 -- -- -- 1000 -- -- -- -- -- -- -- -- -- -- 77 -- 120 -- ND mg/L 04/12/19 14 15 -- -- ND 900 -- -- -- -- -- -- -- -- -- -- 81 -- 370 -- ND mg/L 10/07/19 14 15 -- -- ND 950 -- -- -- -- -- -- -- -- -- -- 340 -- 470 -- ND mg/L 04/20/20 14 15 -- -- ND 1700 -- -- -- -- -- -- -- -- -- -- 110 -- 380 -- -- mg/L 10/13/20 14 15 -- -- 14 J 1200 -- -- -- -- -- -- -- -- -- -- 370 -- 200 -- -- mg/L 04/28/21 14 15 -- -- ND 960 -- -- -- -- -- -- -- -- -- -- 48 -- 450 -- -- mg/L 10/14/21 14 15 -- -- 15 1100 -- -- 300 -- 820 -- 170 670 480 -- 360 -- 470 -- -- m /L 04/19/22 14 15 -- -- 21 1000 -- -- -- -- -- -- -- -- -- -- 240 -- 220 -- -- Total Organic Carbon mg/L 05/05/08 0.32 -- -- -- -- 15 2.2 -- -- -- -- 1.3 ND -- -- -- 9.2 -- -- -- ND (No NC 2L) mg/L 10/16/09 0.32 -- -- -- ND 30 0.88 J -- -- -- -- 7.3 2.5 -- -- -- 2.5 -- -- -- ND (No EPA MCL) mg/L 10/16/09 0.32 -- -- -- ND 30 0.88 J -- -- -- -- 7.3 2.5 -- -- -- 2.5 -- -- -- ND mg/L 04/29/10 0.32 -- -- -- ND 23 2.0 -- -- -- -- 3.5 2.3 -- -- -- 4.5 -- -- -- ND mg/L 08/02/10 0.32 -- -- -- 0.40 J 34 1.3 -- -- -- -- 2.8 2.3 -- -- -- 3.0 -- -- -- ND mg/L 10/25/12 0.32 -- -- -- 0.55 J 45 -- -- -- -- -- -- -- -- -- -- 1.7 -- 1.2 -- ND mg/L 05/02/13 0.32 -- -- -- 0.32 19 -- -- -- -- -- -- -- -- -- -- 0.93 J -- 0.84 J -- ND mg/L 09/24/13 0.32 -- -- -- 0.32 48 -- -- -- -- -- -- -- -- -- -- 1.9 -- 1.6 -- ND mg/L 04/25/14 0.32 -- -- -- ND 36 -- -- -- -- -- -- -- -- -- -- 6.8 -- 0.56 J -- ND mg/L 10/02/14 0.32 -- -- -- 0.51 J 48 -- -- -- -- -- -- -- -- -- -- 4.9 -- 1.5 -- ND mg/L 04/14/15 0.34 -- -- 0.34 33 mg/L 10/07/15 0.34 -- -- ND -- 46 -- -- -- -- -- -- -- -- ND -- -- ND 190 ND ND mg/L 04/18/16 0.34 -- -- -- 0.48 J 37 -- -- -- -- -- -- -- -- -- -- 5.7 -- 1.6 -- ND mg/L 09/26/16 0.34 -- -- -- -- 58 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/17 0.34 -- -- -- ND 28 -- -- -- -- -- -- -- -- -- -- 4.3 -- 2.4 -- ND mg/L 10/17/17 0.34 -- -- -- -- 69 -- -- -- -- -- -- -- -- -- -- 2.6 -- 3.3 -- ND mg/L 04/16/18 0.34 -- -- -- 0.51 J 37 -- -- -- -- -- -- -- -- -- -- 2.2 -- 3.0 -- ND mg/L 10/16/18 0.34 1.0 -- -- -- 56 -- -- -- -- -- -- -- -- -- -- 5.2 -- 1.0 -- ND mg/L 04/12/19 0.34 1.0 -- -- 1.4 39 -- -- -- -- -- -- -- -- -- -- 3.8 -- 7.0 -- ND mg/L 10/07/19 0.34 1.0 -- -- ND 46 -- -- -- -- -- -- -- -- -- -- 2.4 -- 2.2 -- ND mg/L 04/20/20 0.34 1.0 -- -- ND 45 -- -- -- -- -- -- -- -- -- -- 2.8 -- 3.3 -- -- mg/L 10/13/20 0.34 1.0 -- -- ND 52 -- -- -- -- -- -- -- -- -- -- 5.2 -- 2.4 -- -- mg/L 04/28/21 0.34 1.0 -- -- 0.7 J 49 -- -- -- -- -- -- -- -- -- -- 5.5 -- 4.6 -- -- mg/L 10/14/21 0.34 1.0 -- -- 2.3 68 -- -- -- -- -- -- -- -- -- -- 4.5 -- 3.7 -- -- m /L 04/19/22 0.34 1.0 -- -- 1.5 50 -- -- -- -- -- -- -- -- -- -- 3.8 -- 2.8 -- -- Pyruvic Acid mg/L 10/16/09 0.02 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND (No NC 2L) mg/L 04/29/10 0.14 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND (No EPA MCL) mg/L 08/02/10 0.14 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 10/25/12 0.01 -- -- -- 0.012 J 0.02 J -- -- -- -- -- -- -- -- -- -- ND -- 0.014 J -- ND mg/L 05/02/13 0.01 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/24/13 0.01 -- -- ND ND mg/L 04/25/14 0.01 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND m g/L 10/02/14 0.01 -- -- -- ND N D -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/14/15 0.01 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/15 0.012 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND m g/L 04/18/16 0.012 -- -- -- 0.018 J N D -- -- -- -- -- -- -- -- -- -- N D -- 0.015 J -- ND mg/L 09/26/16 0.012 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND m g/L 04/25/17 0.012 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND m g/L 10/17/17 0.012 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/16/18 0.012 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/16/18 0.012 0.07 -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/12/19 0.021 0.07 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/19 0.021 0.07 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/20/20 0.021 0.07 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/13/20 0.021 0.07 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 04/28/21 0.021 0.07 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/14/21 0.021 0.07 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- m /L 04/19/22 0.021 0.07 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- Lactic Acid/HIBA (2-Hydroxyisobutyric Acid) mg/L 10/16/09 0.088 -- -- -- ND ND 0.17 J -- -- -- -- ND ND -- -- -- ND -- -- -- ND (No NC 2L) mg/L 04/29/10 0.44 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND (No EPA MCL) mg/L 08/02/10 0.44 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 10/25/12 0.095 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 05/02/13 0.095 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/24/13 0.095 -- -- -- 0.14 ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/14 0.095 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/02/14 0.095 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/14/15 0.095 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/15 0.095 -- -- -- -- 4.7 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND mg/L 04/18/16 0.095 -- -- -- ND 7.5 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/26/16 0.095 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/17 0.095 -- -- -- ND 2.8 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/17/17 0.095 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/16/18 0.095 -- -- -- ND 4.5 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/16/18 0.095 0.14 -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND m g/L 04/12/19 0.13 0.14 -- -- N D ND -- -- -- -- -- -- -- -- -- -- ND -- N D -- N D mg/L 10/07/19 0.13 0.14 -- -- ND 5.0 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/20/20 0.13 0.14 -- -- ND 3.7 -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/13/20 0.13 0.14 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 04/28/21 0.13 0.14 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/14/21 0.13 0.14 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- 0.19 -- -- m /L 04/19/22 0.13 0.14 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- Acetic Acid mg/L 10/16/09 0.071 -- -- -- 0.58 25 ND -- -- -- -- 0.64 0.53 -- -- -- 0.39 J -- -- -- ND (No NC 2L) mg/L 04/29/10 0.083 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND (No EPA MCL) mg/L 08/02/10 0.083 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 10/25/12 0.031 -- -- -- 0.53 ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 05/02/13 0.031 -- -- -- ND 28 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/24/13 0.031 -- -- -- 0.14 ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/14 0.031 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/02/14 0.031 -- -- -- ND 65 -- -- -- -- -- -- -- -- -- -- 0.088 -- ND -- ND mg/L 04/14/15 0.031 -- -- -- 0.16 J ND -- -- -- -- -- -- -- -- -- -- ND -- 0.25 -- ND mg/L 10/07/15 0.16 -- -- -- -- 31 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND mg/L 04/18/16 0.16 -- -- -- ND 31 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/26/16 0.16 -- -- -- -- 54 -- -- -- -- -- -- -- -- -- -- ND -- 0.16 -- ND mg/L 04/25/17 0.16 -- -- -- 0.68 15 -- -- -- -- -- -- -- -- -- -- 1.4 -- 1.3 -- ND mg/L 10/17/17 0.16 -- -- -- -- 45 -- -- -- -- -- -- -- -- -- -- ND -- 0.18 J -- ND m g/L 04/16/18 0.16 -- -- -- ND 16 -- -- -- -- -- -- -- -- -- -- ND -- 0.19 J -- ND mg/L 10/16/18 0.16 0.2 -- -- -- 20 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/12/19 0.18 0.2 -- -- ND 16 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/19 0.18 0.2 -- -- ND 27 -- -- -- -- -- -- -- -- -- -- ND -- 0.28 -- ND mg/L 04/20/20 0.18 0.2 -- -- ND 24 -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/13/20 0.18 0.2 -- -- ND 11 -- -- -- -- -- -- -- -- -- -- 9.4 -- ND -- -- mg/L 04/28/21 0.18 0.2 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/14/21 0.18 0.2 -- -- ND 42 -- -- -- -- -- -- -- -- -- -- 1.0 -- 1.5 -- -- m /L 04/19/22 0.18 0.2 -- -- 0.18 J 11 -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- Propionic Acid mg/L 10/16/09 0.054 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND (No NC 2L) mg/L 04/29/10 0.18 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND (No EPA MCL) mg/L 08/02/10 0.18 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 10/25/12 0.063 -- -- -- ND 50 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 05/02/13 0.063 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/24/13 0.063 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/14 0.063 -- -- -- ND 22 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/02/14 0.063 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/14/15 0.063 -- -- -- ND 21 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/15 0.065 -- -- -- -- 29 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND mg/L 04/18/16 0.065 -- -- -- 0.47 24 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/26/16 0.065 -- -- -- -- 44 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/17 0.065 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- 0.14 -- ND -- ND mg/L 10/17/17 0.065 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/16/18 0.065 -- -- -- ND 11 -- -- -- -- -- -- -- -- -- -- ND -- 0.13 -- ND mg/L 10/16/18 0.065 0.1 -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/12/19 0.065 0.1 -- -- 0.57 ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/19 0.065 0.1 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/20/20 0.065 0.1 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/13/20 0.065 0.1 -- -- ND ND -- -- -- -- -- -- -- -- -- -- 0.28 -- ND -- -- mg/L 04/28/21 0.065 0.1 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/14/21 0.065 0.1 -- -- ND 28 -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- m /L 04/19/22 0.065 0.1 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- Hexanoic Acid mg/L 10/16/09 0.32 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND (No NC 2L) mg/L 04/29/10 0.23 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND (No EPA MCL) mg/L 08/02/10 0.23 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 10/25/12 0.078 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 05/02/13 0.078 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/24/13 0.078 -- -- -- ND 2.4 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/14 0.078 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/02/14 0.078 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/14/15 0.078 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/15 0.26 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND mg/L 04/18/16 0.26 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/26/16 0.26 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/17 0.26 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/17/17 0.26 -- -- - ND ND ND ND mg/L 04/16/18 0.26 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/16/18 0.26 0.5 -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/12/19 0.26 0.5 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/19 0.26 0.5 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/20/20 0.26 0.5 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/13/20 0.26 0.5 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 04/28/21 0.26 0.5 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/14/21 0.26 0.5 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- m /L 04/19/22 0.26 0.5 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- iso-Hexanoic Acid mg/L 10/16/09 0.41 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND (No NC 2L) mg/L 04/29/10 0.21 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- 0.95 J -- -- -- ND (No EPA MCL) mg/L 08/02/10 0.21 -- -- -- ND 2.6 ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 10/25/12 0.08 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 05/02/13 0.08 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/24/13 0.08 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/14 0.08 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/02/14 0.08 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/14/15 0.08 -- -- -- 0.36 J ND -- -- -- -- -- -- -- -- -- -- 0.61 -- 0.36 J -- ND mg/L 10/07/15 0.44 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND m g/L 04/18/16 0.44 -- -- -- N D ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- N D mg/L 09/26/16 0.44 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/17 0.44 -- -- ND ND ND ND ND mg/L 10/17/17 0.44 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/16/18 0.44 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND m g/L 10/16/18 0.44 0.5 -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/12/19 0.44 0.5 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/19 0.44 0.5 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/20/20 0.44 0.5 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/13/20 0.44 0.5 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 04/28/21 0.44 0.5 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- m g/L 10/14/21 0.44 0.5 -- -- N D ND -- -- -- -- -- -- -- -- -- -- N D -- N D -- -- m /L 04/19/22 0.44 0.5 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- ►%%I) GOLDER 13of14 November 2022 TABLE 4 GL19131339.300 Smmary of Grondwater Monitoring Resits Detected Constitents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method SWS Assessment Reporting Sample Practical Upgradient Monitoring Wells Compliance Downgradient Monitoring Wells Monitoring Sentinel Monitoring Wells Detected Monitoring Constituent Detection Reporting Blanks Units Date Quantitation Limit Well Limit Limit MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7113 II-8 II-12 II-3113 II-9 SMW-1 SMW-3 SMW-4 Pentanoic Acid mg/L 10/16/09 0.44 0.5 -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND (No NC 2L) mg/L 04/29/10 0.27 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND (No EPA MCL) mg/L 08/02/10 0.27 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 10/25/12 0.052 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 05/02/13 0.052 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/24/13 0.052 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/14 0.052 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/02/14 0.052 -- -- -- ND 2.4 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/14/15 0.052 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/15 0.11 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND m g/L 04/18/16 0.11 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/26/16 0.11 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/17 0.11 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND m g/L 10/17/17 0.11 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/16/18 0.11 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND m g/L 10/16/18 0.11 0.2 -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND m g/L 04/12/19 0.14 0.2 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/19 0.14 0.2 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/20/20 0.14 0.2 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/13/20 0.14 0.2 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 04/28/21 0.14 0.2 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- m g/L 10/14/21 0.14 0.2 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- m / L 04/19/22 0.14 0.2 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- Ethene mg/L 10/16/09 0.0004 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND (No NC 2L) mg/L 04/29/10 0.0004 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND (No EPA MCL) mg/L 08/02/10 0.0004 -- -- -- ND ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- ND mg/L 10/25/12 0.00054 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 05/02/13 0.0015 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/24/13 0.0015 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/14 0.0015 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/02/14 0.00062 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/14/15 0.00062 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/15 0.00062 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND mg/L 04/18/16 0.00062 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 09/26/16 0.00038 -- -- -- -- 0.0015 -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/25/17 0.0015 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/17/17 0.0015 -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/16/18 0.0015 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/16/18 0.0015 0.003 -- -- -- ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/12/19 0.0015 0.003 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 10/07/19 0.0015 0.003 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- ND mg/L 04/20/20 0.0015 0.003 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/13/20 0.0015 0.003 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 04/28/21 0.0051 0.006 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 10/14/21 0.0051 0.006 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- m /L 04/19/22 0.0051 0.006 -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- Methane mg/L 05/05/08 0.0004 -- -- -- -- 0.135 3.49 -- -- -- -- 0.009 0.003 -- -- -- 0.002 -- -- -- ND (No NC 2L) mg/L 10/16/09 0.0002 -- -- -- 0.001 0.266 1.06 -- -- -- -- 0.45 0.023 -- -- -- 0.085 -- -- -- ND (No EPA MCL) mg/L 04/29/10 0.0002 -- -- -- ND 0.007 1.47 -- -- -- -- 0.029 ND -- -- -- 0.006 -- -- -- ND mg/L 08/02/10 0.0002 -- -- -- ND 0.213 1.30 -- -- -- -- 0.010 0.003 -- -- -- 0.03 -- -- -- ND mg/L 10/25/12 0.0043 -- -- -- ND 0.351 -- -- -- -- -- -- -- -- -- -- 0.00348 -- 0.0731 -- ND mg/L 05/02/13 0.0004 -- -- -- ND 0.00412 -- -- -- -- -- -- -- -- -- -- ND -- 0.0332 -- ND mg/L 09/24/13 0.0004 -- -- -- ND 0.0534 -- -- -- -- -- -- -- -- -- -- 0.0113 -- 0.0542 -- ND mg/L 04/25/14 0.0004 -- -- -- ND 20.8 -- -- -- -- -- -- -- -- -- -- ND -- 23 -- ND mg/L 10/02/14 0.0022 -- -- -- 0.00044 0.211 -- -- -- -- -- -- -- -- -- -- 0.0226 -- 0.0968 -- ND mg/L 04/14/15 0.00044 -- -- -- 0.000706 J 0.00509 -- -- -- -- -- -- -- -- -- -- 0.00187 -- 0.0273 -- ND mg/L 10/07/15 0.0044 -- -- -- -- 0.277 -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND mg/L 04/18/16 0.00044 -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- 0.00316 -- 0.043 -- ND mg/L 09/26/16 0.00044 -- -- -- -- 0.0778 -- -- -- -- -- -- -- -- -- -- 0.0258 0.0773 ND mg/L 04/25/17 0.00044 -- -- -- 0.00214 0.0345 -- -- -- -- -- -- -- -- -- -- 0.000621 J -- 0.00112 -- ND mg/L 10/17/17 0.00044 -- -- -- -- 0.129 -- -- -- -- -- -- -- -- -- -- 0.0243 -- 0.155 -- ND mg/L 04/16/18 0.00044 -- -- -- ND 0.0209 -- -- -- -- -- -- -- -- -- -- 0.00142 -- 0.165 -- ND mg/L 10/16/18 0.00045 0.001 -- -- -- 0.0154 -- -- -- -- -- -- -- -- -- -- 0.00248 -- 0.003 -- ND mg/L 04/12/19 0.00045 0.001 -- -- ND 0.0224 -- -- -- -- -- -- -- -- -- -- 0.00628 -- 0.056 -- ND mg/L 10/07/19 0.00045 0.001 -- -- ND 0.0587 -- -- -- -- -- -- -- -- -- -- 0.006 -- 0.0444 -- ND mg/L 04/20/20 0.00045 0.001 -- -- ND 0.0166 -- -- -- -- -- -- -- -- -- -- 0.00268 -- 0.024 -- -- mg/L 10/13/20 0.00045 0.001 -- -- ND 0.0686 -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- mg/L 04/28/21 0.004 0.005 -- -- ND 0.0547 -- -- -- -- -- -- -- -- -- -- ND -- 0.0511 -- -- mg/L 10/14/21 0.004 0.005 -- -- ND 0.196 -- -- -- -- -- -- -- -- -- -- ND -- 0.111 -- -- m /L 04/19/22 0.004 0.005 -- -- ND 0.0576 -- -- -- -- -- -- -- -- -- -- ND -- ND -- -- Ferrous Iron mg/L 05/05/08 0.042 -- -- -- -- ND ND -- -- -- -- ND ND -- -- -- ND -- -- -- -- mg/L 05/02/13 -- -- -- -- 0.02 0.66 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- mg/L 04/24/14 -- -- -- -- 0.03 0.54 -- -- -- -- -- -- -- -- -- -- 0.57 -- 0.77 -- -- mg/L 04/24/15 -- -- -- -- 0.05 0.51 -- -- -- -- -- -- -- -- -- -- ND -- 0.72 -- -- mg/L 04/20/16 -- -- -- -- 0.03 2.38 -- -- -- -- -- -- -- -- -- -- 1.47 -- 0.5 -- -- (field) mg/L 04/25/17 -- -- -- -- ND ND -- -- -- -- -- -- -- -- -- -- ND (field) mg/L 10/17/17 -- -- -- -- -- 1.6 -- -- -- -- -- -- -- -- -- -- 1.2 -- 0.8 (field) mg/L 04/20/20 -- -- -- -- 0.0 -- -- -- -- -- -- -- -- -- -- -- 0.0 -- 1.0 (field) mg/L 04/28/21 -- -- -- -- 0.0 1.75 -- -- -- -- -- -- -- -- -- -- 0.0 -- 2.0 field m /L 04/19/22 -- -- -- -- -- 2.5 -- -- -- -- -- -- -- -- -- -- 0.0 -- 0.0 -- -- B = blank -qualified data Shaded = concentrations above applicable EPA MCL have been shaded. Bold = concentrations above applicable IMAC and/or NC 2L have been bolded. Data prior to April 2017 provided by S&ME Engineering. # = EPA Action Level * = EPA Secondary MCL Blanks = field, trip and method blanks IMAC = Interim Maximum Allowable Concentration (under NC 2L Rules) Laboratory method blank data was unavailable for data prior to April 2017. However, B flags for the 04/16/09, 10/07/09, and 10/11 /10 were present on laboratory electronic files. MDL = laboratory method detection limit ug/L = micrograms per liter Notes: mg/L = milligrams per liter nM = nano mols SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting on 01/18/07 -- = no data available or no limit established NC 2L = North Carolina Water Quality Standard ND = not detected above the laboratory detection limit or stated reporting limit. J = Prior to the November 2018 event, J flags are estimated values below the SWS Reporting limit. Beginning with the November 2018 event, J flags are estimated values between MDL and PQL. EPA MCL = United States Environmental Protection Agency Maximum Contaminant Limit Compliance monitoring wells II-1, II-7, II-713 also serve as sentinel wells for the corrective action program. The following dilutions were noted for the April 2022 event: Antimony & thallium 2x @ all Locations; 1,4-dioxane 5x @ II-1, II-8; total alkalinity 1 Ox @ II-1, 5x @ SMW-3, II-9. ►%%I) GOLDER 14of14 November 2022 TABLE 5 G L 19131339.300 Summary of Groundwater Field Parameters White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Assessment Detected Monitoring Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Constituent/Parameter Units Date Well MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 pH (Field) S. U. 03/25/99 5.94 6.82 5.69 5.98 6.17 NI 5.92 6.39 5.99 NI 6.48 NI NI NI NI NI NI S. U. 09/22/99 6.15 6.05 5.77 6.65 6.12 NI 5.94 6.24 6.25 NI 6.49 NI NI NI NI NI NI S. U. 03/27/00 6.61 7.76 -- 6.27 6.09 NI 6.34 7.11 6.06 NI 6.39 NI NI NI NI NI NI S. U. 09/13/00 6.70 6.62 -- 6.67 6.67 NI 6.49 6.72 6.41 NI 6.39 NI NI NI NI NI NI S. U. 03/13/01 6.55 5.71 -- 7.21 6.38 NI 6.01 6.01 5.31 -- 6.31 NI NI NI NI NI NI S. U. 09/13/01 6.29 5.20 6.09 6.88 6.09 NI 6.03 6.43 6.04 10.71 6.28 NI NI NI NI NI NI S. U. 03/08/02 7.48 5.76 6.21 7.06 6.10 NI 6.05 6.53 5.57 10.15 6.38 NI NI NI NI NI NI S. U. 09/18/02 6.44 6.65 6.25 7.01 6.17 NI 6.19 6.45 5.70 10.59 6.88 NI NI NI NI NI NI S. U. 04/ 15/03 -- -- -- -- -- N I -- -- -- -- -- N I N I N I N I N I N I S. U. 10/15/03 6.75 5.64 6.33 7.27 6.37 NI 6.18 6.42 5.63 10.76 6.88 NI NI NI NI NI NI S. U. 03/24/04 8.02 7.38 8.20 8.32 8.07 NI 8.65 7.94 7.67 10.89 7.67 NI NI NI NI NI NI S. U. 09/22/04 6.96 6.17 6.43 7.13 6.43 NI 6.47 6.63 5.87 7.33 7.33 NI NI NI NI NI NI S. U. 05/09/05 8.58 8.16 8.01 8.74 8.37 NI 8.47 8.04 8.03 10.77 8.11 NI NI NI NI NI NI S. U. 10/11/05 6.50 5.52 5.95 7.22 6.11 NI 6.00 6.41 5.48 11.30 6.18 -- NI -- NI NI NI S. U. 04/24/06 -- -- -- -- -- N I -- -- -- -- -- -- N I -- N I N I N I S. U. 10/19/06 -- 5.42 6.02 6.85 5.96 NI 6.02 6.35 5.29 11.16 6.18 -- NI -- NI NI NI S. U. 04/12/07 6.35 5.16 6.39 7.07 6.13 NI 6.06 6.45 5.62 11.17 6.28 -- NI -- NI NI NI S. U. 09/26/07 6.49 5.19 6.10 7.06 5.90 N 1 6.03 6.28 5.58 11.20 6.11 -- N I -- N I N I N I S. U. 04/29/08 6.48 5.66 6.31 6.86 5.93 N1 6.44 5.53 9.50 10.81 6.27 6.54 NI -- NI NI NI S. U. 12/03/08 7.29 6.47 7.04 7.55 6.00 NI 7.10 6.35 6.10 11.63 6.90 -- NI -- NI NI NI S. U. 04/17/09 7.29 6.47 7.04 7.55 6.62 NI 7.10 6.35 6.10 11.63 6.90 7.74 NI -- NI NI NI S. U. 10/13/09 9.18 8.69 8.58 9.51 8.39 NI 8.71 8.89 8.29 13.60 8.53 9.15 NI -- NI NI NI S. U. 04/28/10 6.60 5.35 6.23 6.84 5.79 NI 6.24 6.41 5.50 10.49 6.18 6.68 NI 6.14 NI NI NI S. U. 08/02/10 -- -- 6.87 7.48 -- NI -- -- 6.15 11.14 -- -- NI 7.03 6.57 7.40 6.54 S. U. 10/11/10 7.50 6.44 6.95 7.54 6.62 NI 7.05 7.38 6.28 11.41 7.04 7.46 NI 6.99 6.47 7.61 6.72 S. U. 05/ 11 / 11 -- -- -- -- -- N I -- -- -- -- -- -- N I -- -- -- -- S. U. 10/06/11 7.61 6.25 6.87 7.55 6.29 N 1 7.06 7.43 5.96 12.24 7.00 7.65 6.95 6.99 5.46 7.38 6.31 S. U. 04/17/12 7.83 6.81 7.25 7.90 6.58 NI 7.73 7.46 6.20 12.21 7.33 8.02 -- -- -- -- -- S. U. 10/22/12 7.88 6.43 7.48 8.37 6.91 NI 8.15 8.16 6.67 12.70 7.78 7.79 -- -- -- -- -- S. U. 04/24/13 8.29 6.83 7.71 8.37 7.16 NI 7.83 7.84 6.90 12.94 7.37 8.38 7.84 8.01 7.84 8.14 6.95 S. U. 09/10/13 8.33 6.71 7.30 8.13 6.78 7.11 7.67 7.81 7.14 12.31 7.16 7.96 7.58 7.65 6.76 7.93 7.13 S. U. 04/23/14 8.40 7.75 7.82 7.92 7.04 7.41 7.72 7.06 7.29 12.27 6.56 7.82 8.41 7.26 8.13 8.86 8.21 S. U. 10/03/14 7.69 6.55 7.28 7.54 6.69 6.91 7.14 7.44 6.62 10.39 7.14 7.79 7.45 7.43 7.53 7.65 7.08 S. U. 04/14/15 6.76 5.70 6.33 6.75 5.77 5.92 6.27 5.85 5.71 9.37 6.22 6.61 6.23 6.33 5.76 6.54 6.32 S. U. 10/05/15 6.47 -- 6.02 6.56 5.80 5.82 6.34 6.66 5.73 8.83 6.00 6.39 6.09 6.09 5.27 6.21 5.51 S. U. 04/19/16 6.36 4.90 6.29 6.41 5.66 5.96 6.22 5.98 5.54 9.97 6.10 6.46 5.90 5.57 -- -- -- S. U. 09/26/16 6.54 -- 6.20 6.00 5.63 5.90 6.22 6.58 5.58 9.22 6.07 6.42 6.16 6.11 5.68 6.45 5.83 S. U. 03/21/17 -- -- 6.24 6.50 -- 5.78 -- 6.40 5.52 -- -- -- -- -- -- -- -- S. U. 04/25/17 6.46 5.45 6.16 6.47 5.56 5.68 6.28 5.52 4.88 8.92 6.15 6.49 5.94 5.93 5.64 5.98 5.93 S. U. 10/17/17 6.55 -- 6.28 6.44 5.73 5.99 6.39 6.74 5.46 8.52 7.58 6.58 6.21 6.16 5.89 6.53 6.01 (verification event) S. U. 12/21/17 -- -- 6.29 -- 5.63 -- -- 6.59 -- -- -- -- -- -- -- -- -- S. U. 04/16/18 6.50 5.58 6.37 6.31 5.45 5.72 6.19 5.92 5.55 7.72 6.08 6.32 6.25 6.24 5.92 6.45 6.10 S. U. 10/16/18 6.39 -- 6.29 6.52 5.53 5.85 6.23 6.47 5.44 7.72 6.21 6.61 6.37 5.86 5.39 5.96 5.89 (verification event) S. U. 02/20/19 -- -- -- -- 5.66 -- -- -- -- -- -- -- -- -- -- -- 6.21 S. U. 04/09/19 6.67 4.74 6.56 6.47 5.67 5.96 6.38 5.76 5.43 6.70 6.16 6.90 6.20 5.69 6.28 6.43 6.40 S. U. 10/07/19 6.43 5.09 5.00 6.51 5.61 6.05 6.53 6.63 6.94 8.71 6.32 6.68 6.33 6.48 5.77 6.47 6.47 (verification event) S. U. 01/22/20 -- -- 6.37 -- -- -- -- -- -- -- 6.03 -- -- -- -- -- 6.16 S. U. 04/20/20 6.49 4.94 6.37 6.59 5.58 6.06 6.52 6.23 5.48 7.43 6.17 6.59 6.30 5.93 5.53 6.38 6.21 S. U. 10/13/20 5.90 4.99 6.36 6.46 5.60 5.78 6.27 6.48 5.15 6.88 6.17 6.07 6.22 6.11 5.96 6.20 5.80 S. U. 04/28/21 6.77 5.45 6.59 6.90 5.81 6.19 6.58 5.96 5.69 7.46 6.28 6.87 6.59 5.75 5.99 6.54 6.43 S. U. 10/14/21 6.29 5.17 6.20 6.46 5.51 5.82 6.26 6.35 5.48 7.00 6.07 6.05 6.16 6.06 5.81 6.12 5.83 S. U. 04/19/22 6.59 5.95 6.44 7.48 6.62 6.92 7.12 6.80 5.50 7.22 6.16 6.42 7.15 6.19 7.22 6.31 7.16 Specific Conductance (Field) us/cm 05/25/99 299 81 771 1475 2007 NI 599 1556 106 -- 594 NI NI NI NI NI NI us/cm 09/22/99 320 24 833 609 141 NI 580 752 63 -- 55 NI NI NI NI NI NI us/cm 03/27/00 353 101 -- 571 970 NI 540 204 89 -- 604 NI NI NI NI NI N us/cm 09/13/00 335 44 -- 595 275 NI 553 436 96 -- 604 NI NI NI NI NI NI us/cm 03/13/01 7520 19102 -- 6223 6128 NI 11296 9121 8287 -- 9472 NI NI NI NI NI NI us/cm 09/13/01 88838 173392 59174 54857 40741 NI 53504 43038 183942 86446 33529 NI NI NI NI NI NI us/cm 03/08/02 676 223 1497 1298 464 NI 935 896 311 578 1365 NI NI NI NI NI NI us/cm 09/18/02 658 142 1591 1200 356 NI 862 2987 163 572 1351 NI NI NI NI NI NI us/cm 04/ 15/03 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI N us/cm 10/15/03 480 44 1308 820 808 NI 662 1970 113 794 1289 NI NI NI NI NI NI us/cm 03/24/04 428 56 221 845 1327 NI 802 1411 137 851 867 NI NI NI NI NI NI us/cm 09/22/04 472 46 1800 958 530 NI 732 1491 128 468 1448 NI NI NI NI NI NI us/cm 05/09/05 434 45 1610 970 1109 NI 785 2270 187 920 1520 NI NI NI NI NI NI us/cm 10/ 11 /05 576 92 1960 1123 482 NI 871 4450 295 966 1690 -- NI -- NI NI NI us/cm 04/24/06 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI us/cm 10/19/06 -- 57 2210 1120 465 NI 952 4110 152 890 2020 -- NI -- NI NI NI us/cm 04/12/07 514 47 2180 1040 434 NI 868 2070 242 879 2110 -- NI -- NI NI N us/cm 09/26/07 582 50 2300 1035 414 NI 891 1010 246 885 2120 -- NI -- NI NI NI us/cm 04/29/08 45.7 7 2700 108 453 NI 34 13.1 9.5 70.3 238 121.7 NI -- NI NI NI us/cm 12/03/08 5390 71 2640 1053 442 NI 385 114 160 648 2660 -- NI -- NI NI NI us/cm 04/17/09 539 71 2640 1053 442 NI 385 114 160 648 2660 1.06 NI -- NI NI NI us/cm 10/13/09 552 70 2820 1145 457 NI 707 4110 492 639 2730 2.83 NI NI NI NI us/cm 04/28/10 439 42 2320 919 388 NI 536 2460 242 520 2370 909 NI 497 NI NI NI us/cm 08/02/10 -- -- 2460 922 -- NI -- -- 194 505 -- -- NI 641 207 478 1021 us/cm 10/11/10 446 60 2590 177 397 NI 615 3080 168 538 2530 1028 NI 535 158 498 858 us/cm 05/11/11 -- -- -- -- -- NI -- -- -- -- -- -- NI -- -- -- -- us/cm 10/06/11 447 78 3020 938 413 NI 460 3100 172 481 2530 931 562 535 147 363 642 us/cm 04/17/12 416 65 2470 94 424 NI 38 534 272 489 2850 767 -- -- -- -- -- us/cm 10/22/12 399 71 2760 95 420 NI 36 2.6 360 498 2990 950 -- -- -- -- -- us/cm 04/24/13 410 69 2150 97 464.0 NI 34 260 233 505 3110 863 532 755 211 491 821 us/cm 09/10/13 414 57 2800 92 455 167 461 2.74 447 493 3280 975 553 813 241 556 882 us/cm 04/23/14 395 56 2490 9870 479 1800 197 106 224 500 3380 596 544 188 202 529 803 us/cm 10/03/14 425 48 3250 1029 488 1730 509 3190 559 514 3530 995 567 854 375 628 1124 us/cm 04/14/15 268 34 1918 678 345 1153 266 188 246 337 2199 530 366 509 121 389 561 us/cm 10/05/15 304 -- 2617 757 375 1369 241 1245 328 395 2922 387 442 625 150 298 270 us/cm 04/19/16 323 38 2838 1047 477 1747 567 365 542 493 3691 851 563 289 -- -- -- us/cm 09/26/16 340 -- 2618 988 457 1611 815 2522 646 485 3124 768 548 758 329 712 845 us/cm 03/21/17 -- -- 3189 987 -- 1773 -- 1876 610 -- -- -- -- -- -- -- -- us/cm 04/25/17 362 56 2996 1017 480 1587 379 68 100 472 3916 349 527 730 191 213 234 us/cm 10/17/17 367 -- 2929 946 498 1733 781 2987 643 565 3839 612 547 783 262 778 806 (verification event) uS/cm 12/21/17 -- -- 3058 -- 482 -- -- 2986 -- -- -- -- -- -- -- -- -- us/cm 04/16/18 321 99 3622 992 540 1915 259 482 196 696 3147 621 544 778 272 900 298 us/cm 10/16/18 317 -- 2776 836 407 1650 448.4 1102 142 526 3462 489.5 144 174.9 208 258.7 324 (verification event) us/cm 02/20/19 -- -- -- -- 459 -- -- -- -- -- -- -- -- -- -- -- 306 us/cm 04/09/19 368 34 2619 1001 455 1863 355 135 180 664 4158 455 531 383 539 844 439 us/cm 10/07/19 287 31 339 911 432 1414 999 1981 88 86 3377 701 491 97 522 111 81 (verification event) us/cm 01/22/20 -- -- 2902 -- -- -- -- -- -- -- 4215 -- -- -- -- -- 517 us/cm 04/20/20 424 31 3056 800 360 1298 393 755 264 524 4327 716 416 377 220 691 851 us/cm 10/13/20 393 50 2659 940 414 1389 307 1092 187 587 3878 370 546 845 302 514 372 us/cm 04/28/21 425 45 2853 902 408 1402 331 244 328 675 4353 687 541 319 219 941 695 us/cm 10/14/21 345 40 2917 768 356 1284 230 1736 632 657 4220 363 444 688 305 945 494 us/cm 04/19/22 397 45 3093 915 331 1318 125 145 195 691 4471 294 480 546 225 462 323 Temperature (Field) °C 05/25/99 14.42 14.90 14.55 14.65 14.50 NI 11.30 13.30 12.95 -- 16.02 NI NI NI NI NI NI °C 09/22/99 14.84 15.01 16.65 15.38 15.37 NI 17.78 16.73 15.66 -- 18.35 NI NI NI NI NI NI °C 03/27/00 14.30 14.66 -- 14.58 15.01 NI 11.93 12.89 13.70 -- 16.27 NI NI NI NI Ni NI °C 09/13/00 15.70 16.40 -- 16.07 16.06 NI 18.97 17.15 15.82 -- 16.27 NI NI NI NI NI NI °C 03/13/01 15.04 16.18 -- 15.57 15.26 NI 11.38 13.67 14.24 -- 16.41 NI NI NI NI NI NI °C 09/13/01 15.73 15.65 17.28 16.54 17.65 NI 20.08 18.24 16.18 20.68 18.10 NI NI NI NI NI NI °C 03/08/02 14.25 14.74 13.73 15.26 15.51 NI 12.31 12.70 14.08 14.45 16.06 NI NI NI NI NI NI °C 09/18/02 10.56 10.26 10.89 11.45 12.53 NI 14.29 11.87 10.62 10.35 13.21 NI NI NI NI NI NI °C 04/ 15/03 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI °C 10/15/03 14.67 14.78 16.00 15.78 16.39 NI 17.67 16.17 15.28 15.50 16.50 NI NI NI NI NI NI °C 03/24/04 14.42 15.05 13.31 15.48 14.93 NI 11.23 13.58 13.97 14.92 15.54 NI NI NI NI NI NI °C 09/22/04 16.30 15.40 16.10 16.60 16.90 NI 19.10 17.00 16.50 15.50 16.60 NI NI NI NI NI NI °C 05/09/05 19.24 22.78 15.99 20.79 20.32 NI 15.87 12.58 19.11 19.36 17.37 NI NI NI NI NI NI °C 10/11 /05 12.80 20.70 17.60 18.70 23.10 NI 17.60 18.70 17.00 15.70 16.60 -- NI -- NI NI NI °C 04/24/06 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI °C 10/19/06 -- 19.62 18.08 17.68 18.35 NI 19.47 18.30 17.99 17.40 16.74 -- NI -- NI NI NI °C 04/12/07 14.57 14.72 13.47 19.15 17.91 NI 10.04 15.55 17.12 17.13 14.23 -- NI -- NI NI NI °C 09/26/07 23.41 22.80 22.15 23.49 22.64 NI 17.58 29.18 17.45 15.95 18.01 -- NI -- NI NI NI oC 04/29/08 14.55 16.16 11.22 15.48 15.70 NI 16.60 14.60 15.60 13.51 14.19 13.95 NI -- NI NI NI oC 12/03/08 14.53 16.62 12.67 16.51 16.82 NI 15.98 11.96 16.18 13.38 9.47 -- NI -- NI NI NI oC 04/17/09 14.53 16.62 12.67 16.51 16.82 NI 15.98 11.96 16.18 13.38 9.47 11.41 NI -- NI NI NI °C 10/13/09 13.65 18.50 13.46 14.92 14.05 NI 18.60 19.07 12.15 11.70 21.48 12.01 NI NI NI NI °C 04/28/10 14.56 21.23 13.88 14.78 18.65 NI 22.07 14.44 18.12 14.19 18.22 15.94 NI 16.37 NI NI NI °C 08/02/10 -- -- 20.34 22.55 -- NI -- -- 25.17 23.19 -- -- NI 20.45 °C 10/11/10 18.37 23.08 17.55 12.92 16.29 NI 17.51 15.71 18.24 17.16 18.01 21.81 NI 14.03 °C 05/11 /11 -- -- -- -- -- NI -- -- -- -- -- -- NI -- -- -- -- °C 10/06/11 18.70 22.02 20.87 19.70 19.93 NI 19.08 19.13 18.71 18.42 16.72 18.68 19.11 14.03 18.37 16.81 17.35 °C 04/17/12 14.07 15.59 19.33 19.05 24.35 NI 16.75 13.72 24.72 21.74 14.18 14.12 -- -- -- -- -- °C 10/22/12 12.98 26.91 15.93 11.32 20.58 NI 18.34 15.15 14.00 10.97 17.68 16.29 -- -- -- -- -- °C 04/24/13 13.74 14.93 14.10 15.88 16.93 NI 15.31 13.42 14.14 14.58 15.10 14.53 14.78 13.44 13.09 14.28 12.31 °C 09/10/13 23.09 19.75 20.69 15.40 21.83 23.08 21.42 23.13 18.09 17.92 26.26 21.24 16.44 15.89 18.95 20.21 18.81 °C 04/23/14 16.52 17.52 12.21 17.30 18.61 18.67 16.49 17.49 10.88 8.38 17.51 16.50 18.73 14.78 14.45 17.73 18.66 °C 10/03/14 11.86 15.03 19.84 14.99 22.00 23.49 25.12 19.55 19.67 21.04 22.95 21.30 15.07 18.89 16.29 19.15 18.99 °C 04/14/15 13.96 15.23 15.06 17.58 17.53 17.84 19.26 16.31 17.61 17.93 13.64 12.79 16.82 12.07 12.02 13.28 12.04 °C 10/05/15 15.81 -- 19.91 15.46 16.27 16.12 18.61 16.17 17.48 18.75 18.65 16.96 17.50 14.78 19.57 17.46 17.73 °C 04/19/16 16.29 17.52 15.86 20.67 15.36 18.94 19.78 17.26 18.30 20.43 20.86 14.61 13.64 16.46 -- -- -- °C 09/26/16 18.06 -- 19.30 21.82 16.75 18.73 22.56 17.92 19.11 18.66 22.22 19.82 20.45 17.18 18.00 17.86 17.54 °C 03/21/17 -- -- 18.27 18.57 -- 15.12 -- 18.02 17.22 -- -- -- -- -- -- -- -- °C 04/25/17 14.35 15.79 14.21 17.68 17.07 14.78 13.99 17.00 15.32 16.61 16.37 15.69 16.82 15.00 15.07 15.68 14.76 °C 10/17/17 14.77 -- 16.00 17.37 17.01 17.53 19.71 16.70 16.33 16.68 17.85 18.85 17.67 15.84 17.32 16.38 16.49 (verification event) °C 12/21/17 -- -- 15.22 -- 16.27 -- -- 13.83 -- -- -- -- -- -- -- -- -- °C 04/16/18 14.3 15.4 12.9 16.9 17.1 16.4 15.6 15.1 16.1 16.2 17.7 14.6 15.3 13.1 12.6 14.4 13.3 °C 10/16/18 16.3 -- 17.1 17.0 16.6 15.8 18.1 16.7 16.4 16.5 17.5 19.0 18.4 16.8 19.5 18.3 17.8 (verification event) °C 02/20/19 -- -- -- -- 14.4 -- -- -- -- -- -- -- -- -- -- -- 11.1 °C 04/09/19 15.7 17.1 13.6 16.7 17.3 14.1 14.5 14.6 15.2 16.5 17.9 16.7 17.5 13.5 13.1 13.8 13.7 °C 10/07/19 17.7 18.4 17.6 18.5 19.4 17.0 18.8 17.8 17.8 18.1 18.4 18.4 17.0 16.1 18.2 17.1 17.0 (verification event) °C 01/22/20 -- -- 14.0 -- -- -- -- -- -- -- 16.2 -- -- -- -- -- 10.8 °C 04/20/20 15.2 15.7 14.2 16.7 16.7 14.8 14.1 14.3 13.6 15.8 17.1 16.2 15.8 13.7 14.0 14.3 14.3 °C 10/13/20 17.1 16.7 17.6 18.0 18.1 16.2 17.3 17.8 16.6 15.8 19.0 17.3 18.2 16.6 18.6 18.1 17.2 °C 04/28/21 14.8 16.1 14.0 18.0 18.0 14.8 14.3 15.0 16.2 16.6 16.7 14.8 16.7 14.2 15.5 14.8 15.0 °C 10/14/21 15.5 16.7 16.5 18.8 19.4 16.6 20.1 17.0 17.1 17.3 18.2 19.3 17.1 16.5 19.3 17.2 16.0 °C 04/19/22 15.3 15.2 12.8 15.6 15.7 13.9 11.6 13.2 12.0 13.5 16.4 14.5 14.6 12.7 11.9 13.2 13.3 %'%%I) GOL❑ER 1 of 2 November 2022 TABLE 5 G L 19131339.300 Summary of Groundwater Field Parameters White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Assessment Detected Monitoring Reporting Sample Upgradient Monitoring Wells Compliance Downgraient Monitoring Wells Monitoring Sentinel Monitoring Wells Constituent/Parameter Units Date Well MW-13 MW-14 II-1 II-2 II-3 II-4A II-5 II-6 II-7 II-7B II-8 II-12 II-3B II-9 SMW-1 SMW-3 SMW-4 Turbidity (Field) NTU 05/25/99 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 09/22/99 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 03/27/00 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 09/13/00 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 03/13/01 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 09/13/01 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 03/08/02 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 09/18/02 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 04/15/03 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 10/15/03 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 03/24/04 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 09/22/04 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI NTU 05/09/05 1.01 9.33 6.45 14.28 115 NI 7.54 3.98 0.82 0.22 1.27 NI NI NI NI NI NI NTU 10/11/05 10.0 6.00 2.13 4.47 47.1 NI 59.0 8.00 0.22 0.42 2.24 -- NI -- NI NI NI NTU 04/24/06 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI NTU 10/19/06 -- 4.81 4.44 1.24 115 NI 21.0 7.43 0.77 0.55 1.35 -- NI -- NI NI NI NTU 04/ 12/07 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI NTU 09/26/07 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI NTU 04/29/08 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI NTU 12/03/08 4.42 4.80 5.64 2.99 18.8 NI 32.8 10.26 3.35 3.46 3.75 -- NI -- NI NI NI NTU 04/ 17/09 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI N NTU 10/13/09 -- -- -- -- -- NI -- -- -- -- -- -- NI NI NI NI NTU 04/28/10 6.98 3.23 21.50 6.57 15.32 NI 14.38 10.66 2.28 3.13 5.16 6.48 NI 12.75 NI NI NI NTU 08/02/10 -- -- 8.93 5.18 -- NI -- -- 4.76 3.85 -- -- NI 10.05 40.6 9.73 10.73 NTU 10/11/10 3.28 5.01 11.64 4.95 11.99 NI 11.96 13.56 4.55 2.8 9.3 6.12 NI 35.7 45.9 44.7 14.17 NTU 05/ 11 / 11 -- -- -- -- -- NI -- -- -- -- -- NI -- -- -- -- NTU 10/06/11 6.75 5.87 8.08 6.65 12.35 NI 34.8 38.0 8.09 6.86 5.51 7.55 15.33 35.7 20.6 57.0 15.07 NTU 04/17/12 4.28 5.57 6.24 4.24 12.59 NI 10.16 5.90 4.12 3.44 4.45 4.19 -- -- -- -- -- NTU 10/22/12 4.65 7.09 5.75 6.83 18.35 NI 9.37 10.43 4.71 6.58 10.2 5.22 -- -- -- -- -- NTU 04/24/13 9.00 7.44 6.01 5.76 18.48 NI 19.0 8.49 7.08 5.97 5.3 6.49 5.42 6.50 14.18 5.95 6.55 NTU 09/10/13 4.16 7.44 6.18 10.94 15.89 9.12 6.69 6.99 4.41 5.09 4.72 32.8 12.75 14.69 9.05 26.3 7.58 NTU 04/23/14 4.72 4.61 4.51 5.57 8.43 4.64 9.18 8.81 6.58 6.06 5.05 30.1 4.68 6.34 7.49 11.97 4.15 NTU 10/03/14 5.76 6.94 7.86 7.04 8.69 5.88 6.99 19.8 4.86 7.54 6.17 12.94 6.07 11.85 9.99 8.74 7.44 NTU 04/14/15 3.34 3.91 5.57 24.30 6.09 3.4 9.28 4.46 4.77 2.81 1.97 5.09 2.43 1.84 4.00 10.55 4.14 NTU 10/05/15 1.62 -- 0.00 0.35 5.20 0.00 80.0 9.00 0.35 0.00 0.00 32.9 0.00 12.1 19.2 9.30 11.1 NTU 04/19/16 2.01 7.52 5.77 1.01 19.8 1.03 16.9 9.81 2.89 5.21 3.35 32.8 4.22 5.46 6.10 12.35 3.52 NTU 09/26/16 21.3 -- 0.33 0.30 6.26 0.47 3.12 16.99 4.31 1.78 1.79 3.74 0.56 2.40 3.10 1.42 0.32 NTU 03/21/17 -- -- 1.62 0.72 -- 0.39 -- 5.95 3.75 -- -- -- -- -- -- -- -- NTU 04/25/17 10.3 1.39 1.52 3.32 24.5 0.79 108 60.4 5.76 1.66 2.33 94.6 2.32 8.73 44.7 18.6 24.5 NTU 10/17/17 3.58 -- 6.87 0.57 7.44 0.83 33.4 9.70 1.23 0.71 0.97 8.31 4.98 9.32 2.99 8.03 2.95 (verification event) NTU 12/21/17 -- -- 1.29 -- 9.59 -- -- 28.7 -- -- -- -- -- -- -- -- -- NTU 04/16/18 2.56 9.28 0.61 0.58 2.09 0.26 49.7 8.13 1.96 0.67 9.30 9.85 8.87 4.44 9.12 8.45 7.57 NTU 10/16/18 3.07 -- 0.28 0.99 8.01 9.8 19.8 6.27 8.19 0.3 2.89 8.38 15.0 9.19 5.89 8.11 2.92 (verification event) NTU 02/20/19 -- -- -- -- 12.0 -- -- -- -- -- -- -- -- -- -- -- 7.02 NTU 04/09/19 3.46 2.25 1.30 1.11 21.1 1.12 40.5 16.7 4.66 0.47 3.32 7.75 7.01 9.94 5.03 6.29 1.63 NTU 10/07/19 1.35 0.67 4.98 0.67 9.01 1.00 9.67 9.20 2.60 2.53 2.53 35.4 3.64 8.28 7.91 9.90 3.74 (verification event) NTU 01/22/20 -- -- 1.42 -- -- -- -- -- -- -- 1.99 -- -- -- -- -- 2.71 NTU 04/20/20 1.33 0.69 1.21 3.24 8.74 1.15 30.1 7.66 2.57 1.15 2.33 14.8 9.27 7.55 5.47 9.57 1.57 NTU 10/13/20 0.98 0.57 0.92 2.52 16.9 0.48 21.3 5.53 1.60 1.79 1.93 9.48 7.20 5.31 19.2 6.39 5.51 NTU 04/28/21 0.80 1.38 9.20 3.03 9.89 2.51 35.6 9.77 0.89 2.13 1.28 7.63 8.83 9.89 9.71 9.71 3.71 NTU 10/14/21 1.05 2.99 0.97 2.44 8.79 2.10 109 7.61 1.24 1.59 1.49 3.11 6.33 7.41 6.02 9.88 6.33 NTU 04/19/22 1.13 2.74 4.23 2.63 9.63 2.22 39 9.51 2.73 0.63 0.44 7.82 9.70 7.12 8.75 9.74 6.71 Oxidation Reduction my 05/25/99 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI Potential (Field) my 09/22/99 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mv 03/27/00 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mv 09/13/00 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI N mv 03/ 13/01 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mv 09/ 13/01 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI my 03/08/02 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI my 09/18/02 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mv 04/ 15/03 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mv 10/ 15/03 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mv 03/24/04 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mv 09/22/04 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI my 05/09/05 -65 -2 -310 -159 -198 NI -266 -278 -240 -139 -278 NI NI NI NI NI NI my 10/11/05 197 92 67 136 57 NI 89 -57 189 78 42 -- NI -- NI NI NI my 04/24/06 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI my 10/19/06 -- -40 -159 -174 -95 NI -161 -148 -115 -284 -237 -- NI -- NI NI NI mv 04/ 12/07 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI mv 09/26/07 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI mv 04/29/08 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI N my 12/03/08 105 171 83 -49 77 NI 105 181 -47 204 -87 -- NI -- NI NI NI my 04/ 17/09 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI mv 10/ 13/09 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI my 04/28/10 288 446 245 182 284 NI 244 193 332 159 309 79 NI 367 NI NI NI my 08/02/10 -- -- 186 142 -- NI -- -- 310 94 -- -- NI 274 212 213 288 my 10/11/10 244 345 192 177 247 NI 122 66 399 108 170 53 NI 180 278 127 334 mv 05/ 11 / 11 -- -- -- -- -- NI -- -- -- -- -- -- NI -- -- -- -- mv 10/06/11 166 235 85 35 161 NI 113 -11 299 20 96 -46 98 180 266 181 286 my 04/17/12 171 240 97 16 154 NI 153 194 258 -28 90 -42 -- -- -- -- -- mv 10/22/12 127 235 95 41 137 NI 88 -45 221 -34 49 -30 -- -- -- -- -- mv 04/24/13 178 264 146 23 130 NI 185 206 202 17 58 -60 114 222 158 86 272 my 09/10/13 116 237 48 30 120 181 -17 -39 175 -165 73 -52 120 84 113 58 117 my 04/23/14 118 165 105 58 141 118 105 178 208 33 87 3 103 196 130 21 147 my 10/03/14 109 204 -54 26 13 -14 -69 -111 182 -3 19 -119 96 17 -123 -18 49 my 04/14/15 50 86 30 8 54 -10 38 67 67 -38 33 -127 36 78 58 -14 1.2 my 10/05/15 -38.4 -- -38 -14 -40 -46 6 -31 -29 -56.6 -39 -90 -42 -59 -66 -37 -37 my 04/19/16 135.0 266.0 21.0 31.7 142.0 89.0 63.0 103.0 214.0 -78.1 117.5 -78.0 126.0 139.0 131 50 111 my 09/26/16 42.2 -- -- 26 69.00 87 42 -72 103 94.1 50 -48 61 19 24 34 42 my 03/21/17 -- -- -22 38 -- 8 -- -61 159 -- -- -- -- -- -- -- -- mv 04/25/17 154.9 143.4 83.3 28.5 67.6 113.2 101.9 120 101.9 130.0 29.2 -41.3 67.9 76.0 99.0 105.7 112.1 my 10/17/17 154.1 -- -23.1 73.8 79.9 88.8 14.0 -89.1 132.1 120.7 39.5 -41.7 34.1 66.7 19.2 16.7 52.8 (verification event) my 12/21/17 -- -- 9.1 -- 66.0 -- -- -48.7 -- -- -- -- -- -- -- -- -- mv 04/16/18 364.8 -- 412.0 24.7 86.9 44.0 61.1 100.4 372.3 286.1 203.1 0.52 314.4 391.2 342.0 279.0 367.2 my 10/16/18 158.7 -- 59.7 20.7 135.8 83.4 60.0 -31.7 197.3 105.6 80.8 -99.40 26.4 128.5 187.0 165.8 180.2 (verification event) my 02/20/19 -- -- -- -- 317.0 -- -- -- -- -- -- -- -- -- -- -- 339.1 my 04/09/19 41.2 103.7 39.1 152.4 286.5 332.1 307.5 38.2 43.8 73.7 -40.7 -103.6 162.2 345.3 104.7 90.5 -70.9 my 10/07/19 196.3 250.3 -96.3 57.6 132.9 106.9 18.4 -65.9 -115.9 -221.7 83.1 -89.3 67.9 115.6 54.2 17.9 104.3 (verification event) my 01/22/20 -- -- -222.7 -- -- -- -- -- -- -- -230.9 -- -- -- -- -- -171.1 my 04/20/20 91.3 254.9 25.3 22.0 184.9 23.2 73.0 28.5 257.3 88.6 64.0 -75.2 64.7 557.0 110.0 71.0 121.0 my 10/13/20 39.7 301.7 10.8 -8.3 211.2 -152.4 50.5 -77.9 75.3 -59.5 -190.4 -47.7 54.2 113.4 83.1 99.5 -80.2 my 04/28/21 188.9 255.9 17.1 1.7 464.2 48.1 -14.6 166.7 197.1 113.2 78.1 -92.5 58.5 219.3 74.7 12.9 121.4 my 10/14/21 222.5 198.3 -34.2 -16.1 120.1 94.3 57.1 -54.1 235.2 155.2 97.6 58.5 62.2 355.1 35.6 46.7 250.2 my 04/19/22 179.4 10.5 12.0 -65.4 81.5 13.9 16.0 140.2 239.0 176.1 81.4 146.3 41.3 277.2 88.6 125.4 120.0 Dissolved Oxygen (Field) mg/L 05/25/99 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mg/L 09/22/99 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mg/L 03/27/00 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mg/L 09/13/00 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mg/L 03/ 13/01 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mg/L 09/ 13/01 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mg/L 03/08/02 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mg/L 09/18/02 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mg/L 04/ 15/03 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mg/L 10/ 15/03 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mg/L 03/24/04 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mg/L 09/22/04 -- -- -- -- -- NI -- -- -- -- -- NI NI NI NI NI NI mg/L 05/09/05 3.61 6.33 0.38 4.33 0.40 NI 0.72 2.15 0.40 0.66 2.83 NI NI NI NI NI NI mg/L 10/11/05 5.69 6.25 1.64 4.42 2.61 NI 3.69 3.29 1.39 2.59 0.49 -- NI -- NI NI NI mg/L 04/24/06 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI mg/L 10/19/06 -- 5.49 0.58 1.55 1.49 NI 1.22 1.28 0.88 0.50 0.40 -- NI -- NI NI NI mg/L 04/ 12/07 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI mg/L 09/26/07 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI mg/L 04/29/08 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI mg/L 12/03/08 5.01 5.82 2.11 2.78 2.46 NI 1.66 6.29 2.13 0.71 1.86 -- NI -- NI NI NI mg/L 04/ 17/09 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI mg/L 10/ 13/09 -- -- -- -- -- NI -- -- -- -- -- -- NI -- NI NI NI mg/L 04/28/10 6.94 4.92 0.51 6.23 1.11 NI 2.81 4.80 5.10 2.59 0.39 1.10 NI 0.81 NI NI NI mg/L 08/02/10 -- -- 0.49 2.21 -- NI -- -- 0.61 1.96 -- -- NI 0.15 0.09 0.12 0.76 mg/L 10/11/10 3.49 3.40 0.28 2.52 0.39 NI 1.49 3.32 2.46 1.21 0.55 0.39 NI 0.47 0.58 0.54 1.57 mg/L 05/ 11 / 11 -- -- -- -- -- NI -- -- -- -- -- -- NI -- -- -- -- mg/L 10/06/11 4.49 4.87 0.49 3.29 1.72 NI 3.03 3.83 2.65 1.28 1.38 0.41 0.63 0.47 0.37 1.11 1.29 mg/L 04/17/12 4.75 4.37 0.62 2.34 1.87 NI 3.54 3.76 2.91 0.90 1.31 0.68 -- -- -- -- -- mg/L 10/22/12 3.75 2.30 1.43 3.24 0.49 NI 1.13 2.67 0.05 1.89 1.41 0.66 -- -- -- -- -- mg/L 04/24/13 4.36 4.05 1.69 2.96 2.01 NI 1.35 5.44 3.93 5.97 1.31 0.63 1.19 1.72 1.14 0.95 0.93 mg/L 09/10/13 5.95 4.06 2.67 5.90 6.29 6.00 7.20 3.74 1.26 1.71 3.56 1.66 1.19 0.99 0.78 1.09 0.69 mg/L 04/23/14 8.69 8.47 0.94 11.99 4.52 6.67 2.82 9.14 5.74 3.07 2.37 2.84 1.19 3.47 0.61 0.89 4.34 mg/L 10/03/14 4.59 4.68 0.59 3.11 1.41 3.85 3.30 3.02 1.51 2.60 0.70 2.90 0.65 0.32 0.33 0.60 0.41 mg/L 04/14/15 5.52 5.71 0.80 1.78 1.30 1.99 1.92 3.77 2.65 1.71 2.13 0.50 0.41 2.02 1.22 0.96 1.86 mg/L 10/05/15 3.80 -- 0.44 1.77 0.29 0.37 2.91 5.04 1.79 0.50 0.26 0.13 0.19 0.20 0.12 2.07 4.00 mg/L 04/19/16 6.18 8.48 0.54 3.70 2.26 4.04 3.17 4.90 4.19 0.50 0.26 0.18 0.51 0.29 0.31 0.25 0.30 mg/L 09/26/16 4.81 -- 0.38 2.03 1.03 2.30 2.44 2.15 0.84 0.50 0.50 0.17 0.29 0.38 0.42 0.28 0.30 mg/L 03/21/17 -- -- 0.61 1.29 -- 5.47 -- 2.61 0.99 -- -- -- -- -- -- -- -- mg/L 04/25/17 3.65 1.39 0.88 2.57 1.32 0.96 1.16 6.28 7.90 3.28 0.69 0.22 1.30 3.92 6.11 4.56 2.70 mg/L 10/17/17 2.85 -- 0.39 1.11 1.04 1.16 0.50 1.54 0.52 1.27 0.19 0.70 0.25 0.19 0.84 0.37 0.61 (verification event) mg/L 12/21/17 -- -- 0.35 -- 0.48 -- -- 1.35 -- -- -- -- -- -- -- -- -- mg/L 04/16/18 3.38 -- 0.95 2.27 0.79 0.58 1.36 3.49 3.26 0.79 0.12 0.52 0.24 1.17 6.43 0.43 3.31 mg/L 10/16/18 3.55 -- 0.49 0.57 0.31 0.19 0.39 2.14 2.41 0.30 0.48 2.20 0.61 0.23 0.17 2.12 1.53 (verification event) mg/L 02/20/19 -- -- -- -- 2.01 -- -- -- -- -- -- -- -- -- -- -- 3.11 mg/L 04/09/19 3.43 3.42 5.57 1.57 1.32 0.34 1.22 4.69 2.91 1.16 0.18 0.68 0.10 0.56 0.16 0.09 0.52 mg/L 10/07/19 2.37 1.53 0.76 1.77 0.70 0.52 0.95 1.58 0.64 0.88 0.27 0.11 0.24 0.51 0.23 0.40 0.39 (verification event) mg/L 01/22/20 -- -- 2.37 -- -- -- -- -- -- -- 0.37 -- -- -- -- -- 1.86 mg/L 04/20/20 2.89 3.54 0.67 1.67 0.42 0.79 0.94 1.71 1.13 0.46 0.22 0.06 0.17 0.45 0.31 0.20 0.33 mg/L 10/13/20 2.33 2.43 0.65 0.47 0.31 0.47 1.59 1.55 4.42 0.96 0.25 0.31 0.26 0.22 0.50 1.08 2.37 mg/L 04/28/21 1.58 3.38 0.46 1.83 0.71 0.26 1.69 1.81 0.44 0.46 0.10 0.19 0.22 1.98 0.36 0.32 0.28 mg/L 10/14/21 1.37 1.77 0.83 1.23 0.49 0.44 1.96 0.49 0.80 1.22 0.27 0.25 0.37 0.36 2.54 0.28 0.58 mg/L 04/19/22 1.45 2.47 0.71 1.50 2.53 0.33 1.84 5.97 4.73 1.85 0.27 2.21 0.32 1.08 0.44 1.76 1.58 Notes: S.U. = Standard Units NTU = Nephelometric Turbidity Units uS/cm = microsiemens per centimeter mg/L = milligramer per liter my = Millivolts -- = no data available or dry well %'%%I) GOL❑ER 2 of 2 November 2022 TABLE 6 GL19131339.300 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Antimony ug/L 03/01/00 -- -- 30 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 30 ND ND ND ND ND ND ug/L 03/01/01 -- -- 30 ND ND ND ND ND ND ug/L 09/01/01 -- -- 30 ND ND ND ND ND ND ug/L 03/01/02 -- -- 30 ND ND ND ND ND ND ug/L 09/01/02 -- -- 30 ND ND ND ND ND ND ug/L 04/01/03 -- -- 30 ND ND ND ND ND ND ug/L 10/01/03 -- -- 30 ND ND ND ND ND ND ug/L 03/01/04 -- -- 30 ND ND ND ND ND ND ug/L 09/01/04 -- -- 30 ND ND ND ND ND ND ug/L 05/01/05 -- -- 30 ND ND ND ND ND ND ug/L 10/01/05 -- -- 30 ND ND ND ND ND ND ug/L 04/01/06 -- -- 30 ND ND ND ND ND ND ug/L 10/01/06 -- -- 30 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.68 -- 6 -- ND ND ND ND ND ug/L 12/04/08 0.68 -- 6 -- ND ND ND ND ND ug/L 04/13/09 0.68 -- 6 -- ND ND ND ND ND ug/L 10/20/09 0.073 -- 6 0.461 B 0.185 B 0.351 B 0.346 B 0.337 B -- ug/L 04/30/10 0.22 -- 6 -- ND 0.272 1 0.225 1 0.258 1 ND ug/L 10/11/10 0.22 -- 6 -- 0.329 1 0.254 1 0.233 1 0.221 1 ND ug/L 05/12/11 0.22 -- 6 0.448 1 ND 0.287 1 0.241 1 0.261 1 ND ug/L 10/07/11 1.1 -- 6 ND ND ND 0.287 1 0.24 1 ND ug/L 04/19/12 0.22 -- 6 0.279 1 ND 0.34 1 0.308 1 0.284 1 ND ug/L 10/26/12 0.22 -- 6 ND ND ND ND ND ND ug/L 04/25/13 0.22 -- 6 ND ND ND ND ND ND ug/L 09/12/13 0.22 -- 6 ND 0.344 1 0.28 1 ND ND ND ug/L 04/25/14 0.22 -- 6 0.695 1 1.62 1 0.582 1 0.332 1 0.264 1 ND ug/L 10/02/14 0.22 -- 6 0.526 1 ND 0.378 1 0.268 1 0.267 1 ND ug/L 04/06/15 0.22 -- 6 0.312 1 ND 0.232 1 ND 0.754 1 ND ug/L 10/07/15 0.22 -- 6 0.268 1 ND 0.372 1 0.259 1 ND ND ug/L 04/20/16 0.22 -- 6 0.22 ND ND 0.424 1 0.261 1 ND ug/L 09/26/16 0.22 -- 6 ND ND ND ND 0.479 1 ND ug/L 04/28/17 0.37 -- 6 0.708 1 ND 0.485 1 ND ND ND ug/L 10/17/17 0.37 -- 6 0.455 1 ND 0.490 1 ND 0.654 1 ND ug/L 04/16/18 1.85 -- 6 ND ND ND ND ND ND ug/L 10/18/18 1.85 5.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.74 2.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.74 2.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.74 2.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.74 2.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.74 2.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.74 2.0 -- ND ND ND ND ND ND ug/L 04/19/22 0.74 2.0 -- ND ND ND ND ND ND Arsenic ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND SW Standard ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND Human Health = 10 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND 2.4 1 ND 2.2 1 ND ug/L 12/04/08 2.8 -- 10 -- ND ND ND ND ND ug/L 04/13/09 2.8 -- 10 -- ND ND ND ND ND ug/L 10/20/09 2.8 -- 10 ND ND ND ND ND ND ug/L 04/30/10 2.8 -- 10 -- ND ND ND ND ND ug/L 10/11/10 2.8 -- 10 -- ND ND ND ND ND ug/L 05/12/11 2.8 -- 10 3.04 1 3.39 1 ND ND ND ug/L 10/07/11 2.8 -- 10 ND ND ND ND ND ND ug/L 04/19/12 2.8 -- 10 ND ND 3.12 1 ND ND ND ug/L 10/26/12 2.8 -- 10 ND ND ND ND 5.25 1 ND ug/L 04/25/13 2.8 -- 10 ND ND ND ND ND ND ug/L 09/12/13 5.4 -- 10 ND ND ND ND ND ND ug/L 04/25/14 5.4 -- 10 ND ND ND ND ND ND ug/L 10/02/14 5.4 -- 10 6.11 1 ND ND ND ND ND ug/L 04/06/15 6.8 -- 10 ND ND ND ND ND ND ug/L 10/07/15 6.8 -- 10 ND ND ND ND ND ND ug/L 04/20/16 6.8 -- 10 ND ND ND ND ND ND ug/L 09/26/16 6.8 -- 10 ND ND ND ND ND ND ug/L 04/28/17 6.8 -- 10 ND ND ND ND ND ND ug/L 10/17/17 6.8 -- 10 ND ND ND ND ND ND ug/L 04/16/18 6.8 -- 10 ND ND ND 9.17 1 ND ND ug/L 10/18/18 7.6 10 -- ND ND ND ND ND ND ug/L 04/12/19 7.6 10 -- ND ND ND ND ND ND ug/L 10/08/19 7.6 10 -- ND ND ND ND ND ND ug/L 04/20/20 7.6 10 -- ND ND ND ND ND ND ug/L 10/15/20 7.6 10 -- ND ND ND ND ND ND ug/L 04/29/21 7.6 10 -- ND ND ND ND ND ND ug/L 10/14/21 7.6 10 -- ND ND ND ND ND ND u /L 04/19/22 7.6 10 -- ND ND ND ND ND ND ►/ti�i COLDER 1of12 November 2022 TABLE 6 GL19131339.300 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Downstream Surface Water Detected Constituent Reporting Sample Upstream Surface Water Monitoring Points Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Barium ug/L 03/01/00 -- -- 500 ND ND ND ND ND ND SW Standard ug/L 09/01/00 -- -- 500 ND ND ND ND ND ND Human Health = 200 mg/L ug/L 03/01/01 -- -- 500 ND ND ND ND ND ND ug/L 09/01/01 -- -- 500 ND ND ND ND ND ND ug/L 03/01/02 -- -- 500 ND ND ND ND ND ND ug/L 09/01/02 -- -- 500 ND ND ND ND ND ND ug/L 04/01/03 -- -- 500 ND ND ND ND ND ND ug/L 10/01/03 -- -- 500 ND ND ND ND ND ND ug/L 03/01/04 -- -- 500 ND ND ND ND ND ND ug/L 09/01/04 -- -- 500 ND ND ND ND ND ND ug/L 05/01/05 -- -- 500 ND ND ND ND ND ND ug/L 10/01/05 -- -- 500 ND ND ND ND ND ND ug/L 04/01/06 -- -- 500 ND ND ND ND ND ND ug/L 10/01/06 -- -- 500 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- 41.8 1 54.8 1 21.7 1 25.4 1 25.6 1 ND ug/L 09/25/07 -- -- -- 74.5 1 70.9 1 16.8 1 23 1 24 1 ND ug/L 05/05/08 0.2 -- 100 -- 51.2 B 53 B 92.5 B 65.5 B ND ug/L 12/04/08 1 -- 100 -- 35.9 1 21.8 1 27 1 27 1 ND ug/L 04/13/09 4.2 -- 100 -- 53.4 1 44.8 1 41.6 1 42 1 ND ug/L 10/20/09 1 -- 100 68.3 1 36.3 1 21.8 1 27.2 1 26.9 1 ND ug/L 04/30/10 1 -- 100 -- 48.5 1 30.9 1 37.1 1 44.2 1 ND ug/L 10/11/10 1 -- 100 -- 47.1 1 18.8 1 29.3 1 30.6 1 ND ug/L 05/12/11 1 -- 100 77.3 1 39.3 1 40.3 1 35.3 1 37 1 ND ug/L 10/07/11 1 -- 100 74.2 1 76.4 1 21.4 1 42.7 1 32.2 1 ND ug/L 04/19/12 1 -- 100 43.7 1 48.4 1 23.5 1 33.7 1 33.7 1 ND ug/L 10/26/12 1 -- 100 48.2 1 51.2 1 25.2 1 34.8 1 35.1 1 ND ug/L 04/25/13 1 -- 100 57 1 65.1 1 28.5 1 40.8 1 37.8 1 ND ug/L 09/12/13 1 -- 100 56.7 1 40.7 1 25.3 1 31.5 1 33.9 1 ND ug/L 04/25/14 1 -- 100 100 60.8 1 49.3 1 52.7 1 48.8 1 ND ug/L 10/02/14 1 -- 100 112 45.9 1 22.3 1 24.4 1 25.1 1 ND ug/L 04/06/15 1 -- 100 59.3 1 44.3 1 42.2 1 35.5 1 47.3 1 ND ug/L 10/07/15 1 -- 100 85.7 1 46.2 1 28.3 1 319 41 1 ND ug/L 04/20/16 1 -- 100 113 46.3 1 47.5 1 31 1 35.4 1 ND ug/L 09/26/16 1 -- 100 44.8 1 52.8 1 17.6 1 27.9 1 33.9 1 ND ug/L 04/28/17 1 -- 100 46.5 1 45.4 1 59.9 1 50.2 1 45.0 1 ND ug/L 10/17/17 1 -- 100 40.1 1 33.6 1 55.8 1 41.2 1 37.8 1 ND ug/L 04/16/18 1 -- 100 42.9 1 45.4 1 42.1 1 43.9 1 44.1 1 ND ug/L 10/18/18 1.1 10 -- 56.6 57.4 56.4 61.7 61.3 ND ug/L 04/12/19 1.1 10 -- 60.9 64.6 40.0 56.8 56.6 ND ug/L 10/08/19 1.1 10 -- 55.9 49.1 55.1 57.8 60.0 ND ug/L 04/20/20 1.1 10 -- 41.9 48.0 44.2 42.2 40.5 ND ug/L 10/15/20 1.1 10 -- 47.9 48.5 47.3 52.0 52.9 ND ug/L 04/29/21 1.1 10 -- 47.5 42.5 41.6 45.0 41.8 ND ug/L 10/14/21 1.1 10 -- 43.8 41.4 51.2 43.1 44.2 ND ug/L 04/19/22 1.1 10 -- 42.7 51.1 41.4 45.5 43.6 ND Beryllium ug/L 03/01/00 -- -- 2 ND ND ND ND ND ND SW Standard ug/L 09/01/00 -- -- 2 ND ND ND ND ND ND Acute = 65 ug/L ug/L 03/01/01 -- -- 2 ND ND ND ND ND ND Chronic = 6.5 ug/L ug/L 09/01/01 -- -- 2 ND ND ND ND ND ND ug/L 03/01/02 -- -- 2 ND ND ND ND ND ND ug/L 09/01/02 -- -- 2 ND ND ND ND ND ND ug/L 04/01/03 -- -- 2 2.4 2.4 2.3 2.3 ND ND ug/L 10/01/03 -- -- 2 ND ND ND ND ND ND ug/L 03/01/04 -- -- 2 ND ND ND ND ND ND ug/L 09/01/04 -- -- 2 ND ND ND ND ND ND ug/L 05/01/05 -- -- 2 ND ND ND ND ND ND ug/L 10/01/05 -- -- 2 ND ND ND ND ND ND ug/L 04/01/06 -- -- 2 ND ND ND ND ND ND ug/L 10/01/06 -- -- 2 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.7 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.1 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.08 -- 1 -- ND ND ND ND ND ug/L 10/20/09 0.1 -- 1 0.113 1 ND ND ND ND 0.42 1 ug/L 04/30/10 0.1 -- 1 -- ND ND ND ND ND ug/L 10/11/10 0.1 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.1 -- 1 ND ND ND ND ND ND ug/L 10/07/11 0.1 -- 1 ND 0.149 1 ND ND ND ND ug/L 04/19/12 0.1 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.1 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.1 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.1 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.1 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.1 -- 1 ND ND ND ND ND ND ug/L 04/06/15 0.1 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.1 -- 1 ND ND ND ND ND ND ug/L 04/20/16 0.1 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.1 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.13 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.13 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.13 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.16 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.16 1.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.16 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.16 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.16 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.16 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.16 1.0 -- ND ND ND ND ND ND u /L 04/19/22 0.16 1.0 -- ND ND ND ND ND ND ►���� GOLDER 2of12 November 2022 TABLE 6 GL19131339.300 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Cadmium ug/L 03/01/00 -- -- 1 ND ND ND ND ND ND SW Standard, Acute (ug/L) ug/L 09/01/00 -- -- 1 ND ND ND ND ND ND SW-1 = 3.12 ug/L 03/01/01 -- -- 1 ND ND ND ND ND ND SW-2 = 2.81 ug/L 09/01/01 -- -- 1 1.1 ND ND ND ND ND SW-3 = 2.48 ug/L 03/01/02 -- -- 1 ND ND ND ND ND ND SW-4 = 3.74 ug/L 09/01/02 -- -- 1 ND 1.2 ND ND ND ND SW-5 = 3.17 ug/L 04/01/03 -- -- 1 4.1 3.8 4.0 3.9 ND ND SW Standard, Chronic (ug/L) ug/L 10/01/03 -- -- 1 ND ND ND ND ND ND SW-1 = 0.47 ug/L 03/01/04 -- -- 1 1.0 ND 1.0 ND ND ND SW-2 = 0.43 ug/L 09/01/04 -- -- 1 ND ND ND ND ND ND SW-3 = 0.39 ug/L 05/01/05 -- -- 1 ND ND ND ND ND ND SW-4 = 0.56 ug/L 10/01/05 -- -- 1 ND ND ND ND ND ND SW-5 = 0.48 ug/L 04/01/06 -- -- 1 ND ND ND ND ND ND ug/L 10/01/06 -- -- 1 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.5 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.36 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.09 -- 1 -- 0.14 1 0.17 1 0.26 1 0.21 1 ND ug/L 10/20/09 0.36 -- 1 0.477 J ND ND ND ND ND ug/L 04/30/10 0.36 -- 1 -- ND ND ND ND ND ug/L 10/11/10 0.36 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.36 -- 1 0.471 J ND ND ND ND ND ug/L 10/07/11 0.36 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.36 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.36 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.36 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.36 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.36 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.36 -- 1 0.661 J ND ND ND ND ND ug/L 04/06/15 0.36 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.36 -- 1 0.784 J ND ND 5.66 ND ND ug/L 04/20/16 0.36 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.36 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.36 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.36 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.36 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.36 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.36 1.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.36 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.36 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.36 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.36 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.36 1.0 -- ND ND ND ND ND ND ug/L 04/19/22 0.36 1.0 -- ND ND ND ND ND ND Chromium ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND SW Standard ug/L 09/01/00 -- -- 10 ND ND 25 14 20 ND SW Standard, Acute (ug/L) ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND SW-1 = 643.41 ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND SW-2 = 583.72 ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND SW-3 = 517.90 ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND SW-4 = 763.69 ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND SW-5 = 652.48 ug/L 10/01/03 -- -- 10 ND ND 10 ND ND ND SW Standard, Chronic (ug/L) ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND SW-1 = 83.69 ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND SW-2 = 75.93 ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND SW-3 = 67.37 ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND SW-4 = 99.34 ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND SW-5 = 84.87 ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND ND 15.0 ND ND ug/L 12/04/08 1 -- 10 -- ND 2.3 1 ND 1.40 1 ND ug/L 04/13/09 0.7 -- 10 -- 1.40 1 1.60 1 1.10 1 1.10 1 ND ug/L 10/20/09 1 -- 10 8.16 1 ND ND ND ND ND ug/L 04/30/10 1 -- 10 -- ND 1.14 1 ND 1.95 1 ND ug/L 10/11/10 1 -- 10 -- 2.52 1 1.00 1.00 1.00 ND ug/L 05/12/11 1 -- 10 4.37 1 ND 1.09 1 ND ND ND ug/L 10/07/11 1 -- 10 6.97 1 6.25 1 1.21 1 3.00 1 ND ND ug/L 04/19/12 1 -- 10 1.11 1 ND ND ND ND ND ug/L 10/26/12 1 -- 10 ND ND ND ND ND ND ug/L 04/25/13 1.4 -- 10 1.44 1 2.12 1 ND ND 2.57 1 ND ug/L 09/12/13 1.4 -- 10 ND ND ND ND ND ND ug/L 04/25/14 1.4 -- 10 11.7 ND 4.26 1 1.7 1 ND ND ug/L 10/02/14 1.4 -- 10 20.6 B 2.13 B 13.4 B 2.50 B 2.70 B -- ug/L 04/06/15 1.4 -- 10 3.66 1 ND 3.36 1 ND 3.51 1 ND ug/L 10/07/15 1.4 -- 10 7.93 1 ND ND 66.1 ND ND ug/L 04/20/16 1.4 -- 10 14.6 ND 6.73 1 ND ND ND ug/L 09/26/16 1.4 -- 10 ND ND ND ND ND ND ug/L 04/28/17 1.4 -- 10 ND ND 5.88 1 1.43 1 ND ND ug/L 10/17/17 1.4 -- 10 ND ND 3.94 1 ND ND ND ug/L 04/16/18 1.4 -- 10 1.74 1 ND 1.80 1 ND 1.92 1 ND ug/L 10/18/18 1.4 10 -- ND ND ND ND ND ND ug/L 04/12/19 1.4 10 -- 1.93 1 1.77 1 ND ND 2.09 1 ND ug/L 10/08/19 1.4 10 -- 1.83 1 ND ND ND ND ND ug/L 04/20/20 1.4 10 -- 1.65 1 ND 1.70 1 ND ND ND ug/L 10/15/20 1.4 10 -- 3.09 1 1.64 1 2.85 1 2.29 1 2.22 1 ND ug/L 04/29/21 1.4 10 -- 2.29 1 ND ND ND ND ND ug/L 10/14/21 1.4 10 -- 2.33 1 ND 2.82 1 ND ND ND ug/L 04/19/22 1.4 10 -- 2.03 1 ND 1.80 1 ND ND ND ►/ti�i COLDER 3of12 November 2022 TABLE 6 GL19131339.300 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Downstream Surface Water Detected Constituent Reporting Sample Upstream Surface Water Monitoring Points Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Cobalt ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND 17 ND ND ND ND ug/L 04/01/03 -- -- 10 14 14 15 14 ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- 3.5 1 ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND ND 7.1 1 3.8 1 ND ug/L 12/04/08 1.1 -- 10 -- ND ND ND 2.9 1 ND ug/L 04/13/09 0.6 -- 10 -- 1.8 1 0.7 1 0.8 1 0.6 1 ND ug/L 10/20/09 1.1 -- 10 3.43 1 ND ND ND ND ND ug/L 04/30/10 1.1 -- 10 -- ND ND ND 1.98 1 ND ug/L 10/11/10 1.1 -- 10 -- ND ND ND ND ND ug/L 05/12/11 1.1 -- 10 3.19 1 ND ND ND ND ND ug/L 10/07/11 1.1 -- 10 4.06 1 6.5 1 1.19 1 2.28 1 ND ND ug/L 04/19/12 1.1 -- 10 ND ND ND ND ND ND ug/L 10/26/12 1.1 -- 10 ND ND ND ND ND ND ug/L 04/25/13 1.1 -- 10 ND 2.03 1 ND ND ND ND ug/L 09/12/13 1.1 -- 10 ND ND 1.46 1 1.15 1 ND ND ug/L 04/25/14 1.1 -- 10 4.31 1 ND 1.91 1 ND ND ND ug/L 10/02/14 1.1 -- 10 8.95 1 ND 4.56 1 2.46 1 2.45 1 ND ug/L 04/06/15 1.1 -- 10 1.73 1 ND 2.44 1 1.56 1 2.18 1 ND ug/L 10/07/15 1.1 -- 10 4.34 1 ND 2.43 1 46.5 1.92 1 ND ug/L 04/20/16 1.1 -- 10 7.38 1 ND 4.32 1 1.66 1 2.1 1 ND ug/L 09/26/16 1.1 -- 10 ND 1.30 1 ND ND ND ND ug/L 04/28/17 1.1 -- 10 ND ND 2.31 1 ND ND ND ug/L 10/17/17 1.1 -- 10 ND ND 2.94 1 ND ND ND ug/L 04/16/18 1.1 -- 10 1.65 1 1.49 1 ND 1.30 1 1.32 1 ND ug/L 10/18/18 1.4 10 -- ND ND ND ND ND ND ug/L 04/12/19 1.4 10 -- ND 1.40 1 ND ND ND ND ug/L 10/08/19 1.4 10 -- ND ND ND ND ND ND ug/L 04/20/20 1.4 10 -- ND ND ND ND ND ND ug/L 10/15/20 1.4 10 -- ND ND ND ND ND ND ug/L 04/29/21 1.4 10 -- ND ND ND ND ND ND ug/L 10/14/21 1.4 10 -- ND ND ND ND ND ND ug/L 04/19/22 1.4 10 -- ND ND ND ND ND ND Copper ug/L 03/01/00 -- -- 200 ND ND ND ND ND ND SW Standard, Acute (ug/L) ug/L 09/01/00 -- -- 200 ND ND ND ND ND ND SW-1 = 15.46 ug/L 03/01/01 -- -- 200 ND ND ND ND ND ND SW-2 = 13.82 ug/L 09/01/01 -- -- 200 ND ND ND ND ND ND SW-3 = 12.04 ug/L 03/01/02 -- -- 200 ND ND ND ND ND ND SW-4 = 18.82 ug/L 09/01/02 -- -- 200 ND ND ND ND ND ND SW-5 = 15.71 ug/L 04/01/03 -- -- 200 ND ND ND ND ND ND SW Standard, Chronic (ug/L) ug/L 10/01/03 -- -- 200 ND ND ND ND ND ND SW-1 = 10.17 ug/L 03/01/04 -- -- 200 ND ND ND ND ND ND SW-2 = 9.18 ug/L 09/01/04 -- -- 200 ND ND ND ND ND ND SW-3 = 8.11 ug/L 05/01/05 -- -- 200 ND ND ND ND ND ND SW-4 = 12.16 ug/L 10/01/05 -- -- 200 ND ND ND ND ND ND SW-5 = 10.32 ug/L 04/01/06 -- -- 200 ND ND ND ND ND ND ug/L 10/01/06 -- -- 200 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- 2.20 1 1.50 1 6.20 1 4.50 1 4.30 1 ND ug/L 09/25/07 -- -- -- 11.2 0.6 10.3 8.40 1 10.1 ND ug/L 05/05/08 0.6 -- 10 -- 1.3 1 2.50 1 13.3 3.7 1 ND ug/L 12/04/08 1.6 -- 10 -- 20.5 4.60 1 4.30 1 6.40 1 ND ug/L 04/13/09 0.81 -- 10 -- 1.93 1 2.56 1 1.87 1 1.78 1 ND ug/L 10/20/09 1.6 -- 10 10.7 ND 7.1 1 5.15 1 5.26 1 ND ug/L 04/30/10 1.6 -- 10 -- ND 5.90 1 3.30 1 6.33 1 ND ug/L 10/11/10 1.6 -- 10 -- 10.2 8.12 1 5.59 1 3.91 1 ND ug/L 05/12/11 1.6 -- 10 12.6 ND 3.34 1 2.89 1 3.03 1 ND ug/L 10/07/11 1.6 -- 10 8.31 1 5.88 1 4.91 1 6.56 1 3.28 1 ND ug/L 04/19/12 1.6 -- 10 2.72 1 ND 5.01 1 4.36 1 4.11 1 ND ug/L 10/26/12 1.6 -- 10 2.04 1 ND 5.47 1 2.22 1 2.71 1 ND ug/L 04/25/13 1.6 -- 10 3.43 1 5.01 1 4.46 1 4.33 1 6.16 1 ND ug/L 09/12/13 1.6 -- 10 1.94 1 ND 1.67 1 ND ND ND ug/L 04/25/14 1.6 -- 10 16.7 B 3.46 B 10.5 B 5.92 B 6.29 B -- ug/L 10/02/14 1.6 -- 10 30.9 1.82 1 6.82 1 5.42 1 5.30 1 ND ug/L 04/06/15 1.6 -- 10 4.30 1 3.71 1 11.1 5.23 1 8.24 1 ND ug/L 10/07/15 1.6 -- 10 11.3 1.6 2.65 1 57.1 2.17 1 ND ug/L 04/20/16 1.6 -- 10 21.2 ND 10.8 2.56 1 4.07 1 ND ug/L 09/26/16 1.6 -- 10 4.52 1 2.57 1 6.61 1 6.03 1 8.07 1 ND ug/L 04/28/17 1.6 -- 10 5.19 1 3.02 1 13.4 4.55 1 4.51 1 ND ug/L 10/17/17 1.6 -- 10 3.95 1 1.77 1 9.07 1 2.58 1 2.89 1 ND ug/L 04/16/18 1.6 -- 10 4.40 1 4.19 1 4.11 1 5.33 1 3.98 1 ND ug/L 10/18/18 1.6 10 -- 3.11 1 3.84 1 2.72 1 2.42 1 3.55 1 ND ug/L 04/12/19 1.6 10 -- 3.44 1 5.44 1 5.11 1 3.66 1 4.18 1 ND ug/L 10/08/19 1.6 10 -- 2.23 1 1.81 1 2.92 1 2.66 1 1.60 1 ND ug/L 04/20/20 1.6 10 -- 4.72 1 ND 4.85 1 6.44 1 4.63 1 ND ug/L 10/15/20 1.6 10 -- 4.38 1 4.03 1 4.33 1 4.59 1 4.21 1 ND ug/L 04/29/21 1.6 10 -- ND ND ND ND ND ND ug/L 10/14/21 1.6 10 -- 1.68 B ND ND 1.82 B ND 2.62 1 u /L 04/19/22 1.6 10 -- ND ND ND ND 2.91 1 ND ►/ti�i COLDER 4of12 November 2022 TABLE 6 GL19131339.300 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Lead ug/L 03/01/00 -- -- 10 ND ND 15 ND ND ND SW Standard, Acute (ug/L) ug/L 09/01/00 -- -- 10 ND ND 10 ND ND ND SW-1 = 75.88 ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND SW-2 = 66.69 ug/L 09/01/01 -- -- 10 25 ND ND ND ND ND SW-3 = 56.87 ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND SW-4 = 95.12 ug/L 09/01/02 -- -- 10 ND 86 ND ND ND ND SW-5 = 77.30 ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND SW Standard, Chronic (ug/L) ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND SW-1 = 2.96 ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND SW-2 = 2.60 ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND SW-3 = 2.22 ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND SW-4 = 3.71 ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND SW-5 = 3.01 ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- 11.2 ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND ND 14.8 ND ND ug/L 12/04/08 1.9 -- 10 -- ND ND ND ND ND ug/L 04/13/09 1.6 -- 10 -- 2.30 1 2.50 1 1.60 1.60 ND ug/L 10/20/09 1.9 -- 10 8.94 J ND ND 2.44 1 3.34 J ND ug/L 04/30/10 1.9 -- 10 -- ND ND ND 2.04 1 ND ug/L 10/11/10 1.9 -- 10 -- 5.45 1 1.90 1.90 1.90 ND ug/L 05/12/11 1.9 -- 10 15.4 ND 2.00 1 ND ND ND ug/L 10/07/11 1.9 -- 10 10.0 16.4 ND 3.33 1 ND ND ug/L 04/19/12 1.9 -- 10 ND ND 2.38 J ND ND ND ug/L 10/26/12 1.9 -- 10 ND ND ND ND ND ND ug/L 04/25/13 1.9 -- 10 ND 4.74 J ND ND ND ND ug/L 09/12/13 2.1 -- 10 ND ND ND ND ND ND ug/L 04/25/14 2.1 -- 10 11.2 3.23 1 3.36 1 2.23 1 2.82 1 ND ug/L 10/02/14 2.1 -- 10 ND ND ND ND ND ND ug/L 04/06/15 3.1 -- 10 ND ND ND ND ND ND ug/L 10/07/15 3.1 -- 10 7.02 J ND ND 93.2 ND ND ug/L 04/20/16 3.1 -- 10 14.6 ND 6.10 J ND ND ND ug/L 09/26/16 3.1 -- 10 ND ND ND ND ND ND ug/L 04/28/17 3.1 -- 10 ND ND 4.66 J ND ND ND ug/L 10/17/17 3.1 -- 10 ND ND 3.18 J ND ND ND ug/L 04/16/18 3.1 -- 10 ND ND ND ND ND ND ug/L 10/18/18 3.1 10 -- ND ND ND ND ND ND ug/L 04/12/19 3.1 10 -- 3.91 J ND ND ND ND ND ug/L 10/08/19 3.1 10 -- ND ND ND ND ND ND ug/L 04/20/20 3.1 10 -- ND ND ND ND ND ND ug/L 10/15/20 3.1 10 -- ND ND ND ND ND ND ug/L 04/29/21 3.1 10 -- ND ND ND ND ND ND ug/L 10/14/21 3.1 10 -- ND ND ND ND ND ND ug/L 04/19/22 3.1 10 -- ND ND ND ND ND ND Nickel ug/L 03/01/00 -- -- 50 ND ND ND ND ND ND SW Standard, Acute (ug/L) ug/L 09/01/00 -- -- 50 ND ND 82 65 81 ND SW-1 = 530.88 ug/L 03/01/01 -- -- 50 ND ND ND ND ND ND SW-2 = 480.09 ug/L 09/01/01 -- -- 50 ND ND ND ND ND ND SW-3 = 424.28 ug/L 03/01/02 -- -- 50 ND ND ND ND ND ND SW-4 = 633.69 ug/L 09/01/02 -- -- 50 ND ND ND ND ND ND SW-5 = 538.61 ug/L 04/01/03 -- -- 50 ND ND ND ND ND ND SW Standard, Chronic (ug/L) ug/L 10/01/03 -- -- 50 ND ND ND ND ND ND SW-1 = 58.96 ug/L 03/01/04 -- -- 50 ND ND ND ND ND ND SW-2 = 53.32 ug/L 09/01/04 -- -- 50 ND ND ND ND ND ND SW-3 = 47.12 ug/L 05/01/05 -- -- 50 ND ND ND ND ND ND SW-4 = 70.38 ug/L 10/01/05 -- -- 50 ND ND ND ND ND ND SW-5 = 59.82 ug/L 04/01/06 -- -- 50 ND ND ND ND ND ND ug/L 10/01/06 -- -- 50 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND 2.7 1 ND 2.5 1 ND ug/L 09/25/07 -- -- -- ND ND 7.6 1 ND ND ND ug/L 05/05/08 2.0 -- 50 -- 3.5 1 3.9 1 5.5 1 6.7 1 ND ug/L 12/04/08 1.8 -- 50 -- ND 4.3 1 3.8 1 3.2 1 ND ug/L 04/13/09 0.6 -- 50 -- 2.3 1 1.5 1 1.6 1 1.5 1 ND ug/L 10/20/09 1.8 -- 50 2.94 1 ND 2.53 1 1.89 1 ND ND ug/L 04/30/10 1.8 -- 50 -- ND ND ND 2.14 1 ND ug/L 10/11/10 1.8 -- 50 -- 1.80 2.22 1 1.80 1.80 ND ug/L 05/12/11 1.8 -- 50 2.34 1 ND ND 2.57 1 2.66 1 ND ug/L 10/07/11 1.8 -- 50 3.64 1 4.23 1 6.40 1 4.31 1 3.43 1 ND ug/L 04/19/12 1.8 -- 50 ND ND 2.56 1 2.00 1 2.23 1 ND ug/L 10/26/12 1.8 -- 50 ND 1.92 1 5.32 1 5.14 1 5.46 1 ND ug/L 04/25/13 1.8 -- 50 2.38 1 3.30 1 6.20 1 6.96 1 6.85 1 ND ug/L 09/12/13 1.8 -- 50 ND ND 2.09 1 ND ND ND ug/L 04/25/14 1.8 -- 50 4.30 1 2.07 1 7.49 1 5.52 1 5.55 1 ND ug/L 10/02/14 1.8 -- 50 7.25 1 ND 23.7 1 9.96 1 10.6 1 ND ug/L 04/06/15 1.8 -- 50 2.02 1 ND 3.03 1 2.33 1 2.46 1 ND ug/L 10/07/15 1.8 -- 50 3.16 1 ND 6.56 1 22.0 1 3.14 1 ND ug/L 04/20/16 2.2 -- 50 5.60 1 ND 5.02 1 8.54 1 2.88 1 ND ug/L 09/26/16 2.2 -- 50 ND ND 3.54 1 3.34 1 6.44 1 ND ug/L 04/28/17 2.2 -- 50 ND ND 6.02 1 2.83 1 2.62 1 ND ug/L 10/17/17 2.2 -- 50 ND ND ND ND ND ND ug/L 04/16/18 2.2 -- 50 ND ND ND ND ND ND ug/L 10/18/18 2.2 10 -- ND ND ND ND ND ND ug/L 04/12/19 2.2 10 -- ND ND ND ND ND ND ug/L 10/08/19 2.2 10 -- ND ND ND ND 2.40 1 ND ug/L 04/20/20 2.2 10 -- 36.8 ND 3.71 1 ND ND ND ug/L 10/15/20 2.2 10 -- ND ND 3.50 1 ND ND ND ug/L 04/29/21 2.2 10 -- ND ND ND ND ND ND ug/L 10/14/21 2.2 10 -- ND ND ND ND ND ND u /L 04/19/22 2.2 10 -- ND ND ND ND ND ND ►/ti�i COLDER 5of12 November 2022 TABLE 6 GL19131339.300 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Selenium ug/L 03/01/00 -- -- 20 ND ND ND ND ND ND SW Standards ug/L 09/01/00 -- -- 20 ND ND ND ND ND ND Acute = 5 ug/L ug/L 03/01/01 -- -- 20 ND ND ND ND ND ND Chronic = 5 ug/L ug/L 09/01/01 -- -- 20 ND ND ND ND ND ND ug/L 03/01/02 -- -- 20 ND ND ND ND ND ND ug/L 09/01/02 -- -- 20 ND ND ND ND ND ND ug/L 04/01/03 -- -- 20 ND ND ND ND ND ND ug/L 10/01/03 -- -- 20 ND ND ND ND ND ND ug/L 03/01/04 -- -- 20 ND ND ND ND ND ND ug/L 09/01/04 -- -- 20 ND ND ND ND ND ND ug/L 05/01/05 -- -- 20 ND ND ND ND ND ND ug/L 10/01/05 -- -- 20 ND ND ND ND ND ND ug/L 04/01/06 -- -- 20 ND ND ND ND ND ND ug/L 10/01/06 -- -- 20 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND 2.9 1 ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND ND ND ND ND ug/L 12/04/08 2.7 -- 10 -- ND ND ND ND ND ug/L 04/13/09 3.4 -- 10 -- ND ND ND ND ND ug/L 10/20/09 2.7 -- 10 ND ND ND ND ND ND ug/L 04/30/10 0.83 -- 10 -- 1.72 1 0.9 1 0.974 1 1.23 1 ND ug/L 10/11/10 0.83 -- 10 -- 0.83 0.83 0.83 0.875 1 ND ug/L 05/12/11 0.83 -- 10 ND ND ND 1.16 1 0.926 1 ND ug/L 10/07/11 4.15 -- 10 ND ND ND 1.03 1 1.16 1 ND ug/L 04/19/12 0.83 -- 10 ND ND ND ND ND ND ug/L 10/26/12 0.83 -- 10 ND ND ND ND ND ND ug/L 04/25/13 0.83 -- 10 ND ND ND ND ND ND ug/L 09/12/13 0.91 -- 10 ND ND ND ND ND ND ug/L 04/25/14 0.91 -- 10 ND ND ND ND ND ND ug/L 10/02/14 0.91 -- 10 ND ND ND ND ND ND ug/L 04/06/15 0.91 -- 10 ND ND ND ND ND ND ug/L 10/07/15 0.91 -- 10 ND ND ND ND ND ND ug/L 04/20/16 0.91 -- 10 ND ND ND ND ND ND ug/L 09/26/16 0.91 -- 10 ND ND ND ND ND ND ug/L 04/28/17 6.2 -- 10 ND ND ND ND ND ND ug/L 10/17/17 6.2 -- 10 ND ND ND ND ND ND ug/L 04/16/18 6.2 -- 10 ND ND ND ND ND ND ug/L 10/18/18 6.2 10 -- ND ND ND ND ND ND ug/L 04/12/19 6.2 10 -- ND ND ND ND ND ND ug/L 10/08/19 6.2 10 -- ND ND ND ND ND ND ug/L 04/20/20 6.2 10 -- ND ND ND ND ND ND ug/L 10/15/20 6.2 10 -- ND ND ND ND ND ND ug/L 04/29/21 6.2 10 -- ND ND ND ND ND ND ug/L 10/14/21 6.2 10 -- ND ND ND ND ND ND ug/L 04/19/22 6.2 10 -- ND ND ND ND ND ND Silver ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND SW Standard, Acute (ug/L) ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND SW-1 = 4.15 ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND SW-2 = 3.38 ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND SW-3 = 2.63 ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND SW-4 = 5.95 ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND SW-5 = 4.28 ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND SW Standard, Chronic (ug/L) ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND SW-1 = 0.06 ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND SW-2 = 0.06 ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND SW-3 = 0.06 ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND SW-4 = 0.06 ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND SW-5 = 0.06 ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND 2.20 J ND 2.40 J ND ug/L 12/04/08 1.9 -- 10 -- ND ND ND 2.80 J ND ug/L 04/13/09 1.0 -- 10 -- ND ND ND ND ND ug/L 10/20/09 1.9 -- 10 ND ND ND ND ND ND ug/L 04/30/10 1.9 -- 10 -- 2.22 J ND ND ND ND ug/L 10/11/10 1.9 -- 10 -- ND ND ND ND ND ug/L 05/12/11 1.9 -- 10 ND ND ND ND ND ND ug/L 10/07/11 1.9 -- 10 ND ND ND ND ND ND ug/L 04/19/12 1.9 -- 10 ND ND ND ND ND ND ug/L 10/26/12 1.9 -- 10 ND ND ND ND ND ND ug/L 04/25/13 1.9 -- 10 2.06 J ND 1.95 J 2.29 1 2.31 J ND ug/L 09/12/13 1.9 -- 10 ND ND ND ND ND ND ug/L 04/25/14 1.9 -- 10 ND ND ND ND ND ND ug/L 10/02/14 1.9 -- 10 ND ND ND ND ND ND ug/L 04/06/15 1.9 -- 10 ND ND ND ND ND ND ug/L 10/07/15 1.9 -- 10 ND ND 2.74 J ND 2.32 J ND ug/L 04/20/16 1.9 -- 10 ND ND ND ND ND ND ug/L 09/26/16 1.9 -- 10 ND ND ND ND ND ND ug/L 04/28/17 1.9 -- 10 ND ND ND ND ND ND ug/L 10/17/17 1.9 -- 10 ND ND ND ND ND ND ug/L 04/16/18 1.9 -- 10 ND ND ND ND ND ND ug/L 10/18/18 1.9 10 -- ND ND ND ND ND ND ug/L 04/12/19 1.9 10 -- ND ND ND ND ND ND ug/L 10/08/19 1.9 10 -- ND ND ND ND ND ND ug/L 04/20/20 1.9 10 -- ND ND ND ND ND ND ug/L 10/15/20 1.9 10 -- ND ND ND ND ND ND ug/L 04/29/21 1.9 10 -- ND ND ND ND ND ND ug/L 10/14/21 1.9 10 -- ND ND ND ND ND ND u /L 04/19/22 1.9 10 -- ND ND ND ND ND ND ►/ti�i COLDER 6of12 November 2022 TABLE 6 GL19131339.300 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Thallium ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND 12 ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- 0.053 1 0.05 1 0.045 1 0.055 1 0.054 1 ND ug/L 05/05/08 0.036 -- 5.5 -- ND ND ND ND ND ug/L 12/04/08 0.036 -- 5.5 -- ND ND ND ND ND ug/L 04/13/09 0.036 -- 5.5 -- ND ND ND ND ND ug/L 10/20/09 0.11 -- 5.5 0.11 0.11 0.11 0.11 0.11 ND ug/L 04/30/10 0.11 -- 5.5 -- ND ND ND ND ND ug/L 10/11/10 0.11 -- 5.5 -- ND ND ND ND ND ug/L 05/12/11 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/07/11 0.55 -- 5.5 ND ND ND ND ND ND ug/L 04/19/12 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/26/12 0.11 -- 5.5 ND ND ND ND ND ND ug/L 04/25/13 0.11 -- 5.5 ND ND ND ND ND ND ug/L 09/12/13 0.11 -- 5.5 ND ND ND ND ND ND ug/L 04/25/14 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/02/14 0.11 -- 5.5 ND ND ND ND ND ND ug/L 04/06/15 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/07/15 0.11 -- 5.5 ND ND ND ND ND ND ug/L 04/20/16 0.11 -- 5.5 ND ND ND ND ND ND ug/L 09/26/16 0.11 -- 5.5 0.190 1 0.124 1 0.205 1 0.187 1 0.316 1 ND ug/L 04/28/17 0.11 -- 5.5 0.389 1 0.267 1 0.261 1 0.287 1 0.205 1 ND ug/L 10/17/17 0.11 -- 5.5 0.819 1 0.655 1 0.698 1 0.840 1 0.425 1 ND ug/L 04/16/18 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/18/18 0.55 5.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.22 2.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.22 2.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.22 2.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.22 2.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.22 2.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.22 2.0 -- ND ND ND ND ND ND ug/L 04/19/22 0.22 2.0 -- ND ND ND ND ND ND Vanadium ug/L 03/01/00 -- -- 40 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 40 ND ND ND ND ND ND ug/L 03/01/01 -- -- 40 ND ND ND ND ND ND ug/L 09/01/01 -- -- 40 ND ND ND ND ND ND ug/L 03/01/02 -- -- 40 ND ND ND ND ND ND ug/L 09/01/02 -- -- 40 ND 44 ND ND ND ND ug/L 04/01/03 -- -- 40 ND ND ND ND ND ND ug/L 10/01/03 -- -- 40 ND ND ND ND ND ND ug/L 03/01/04 -- -- 40 ND ND ND ND ND ND ug/L 09/01/04 -- -- 40 ND ND ND ND ND ND ug/L 05/01/05 -- -- 40 ND ND ND ND ND ND ug/L 10/01/05 -- -- 40 ND ND ND ND ND ND ug/L 04/01/06 -- -- 40 ND ND ND ND ND ND ug/L 10/01/06 -- -- 40 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- 7.1 1 ND ND 1.5 1 1.2 1 ND ug/L 05/05/08 1 -- 25 -- ND ND 9.3 1 2.4 1 ND ug/L 12/04/08 1.4 -- 25 -- ND ND ND 2.5 1 ND ug/L 04/13/09 0.7 -- 25 -- 4.2 1 2.1 1 2.5 1 2.6 1 ND ug/L 10/20/09 1.4 -- 25 10.7 1 2.19 1 1.81 1 2.79 1 1.86 1 ND ug/L 04/30/10 1.4 -- 25 -- ND ND ND 3.45 1 ND ug/L 10/11/10 1.4 -- 25 -- 8.27 1 3.03 1 2.55 1 2.02 1 ND ug/L 05/12/11 1.4 -- 25 8.52 1 1.90 1 2.35 1 2.27 1 2.42 1 ND ug/L 10/07/11 1.4 -- 25 11.9 1 21.0 1 2.27 1 6.55 1 1.66 1 ND ug/L 04/19/12 1.4 -- 25 2.33 1 ND 1.48 1 1.60 1 1.44 1 ND ug/L 10/26/12 1.4 -- 25 ND ND ND ND ND ND ug/L 04/25/13 1.4 -- 25 2.31 1 5.99 1 ND ND ND ND ug/L 09/12/13 1.4 -- 25 2.11 1 ND 1.70 1 1.53 1 ND ND ug/L 04/25/14 1.4 -- 25 17.9 1 ND 4.7 1 2.25 1 1.60 1 ND ug/L 10/02/14 1.4 -- 25 42.2 ND 3.14 1 2.66 1 2.26 1 ND ug/L 04/06/15 1.4 -- 25 2.34 1 ND 3.33 1 ND 4.62 1 ND ug/L 10/07/15 1.4 -- 25 18.2 1 2.91 1 3.69 1 61.8 3.05 1 ND ug/L 04/20/16 1.4 -- 25 26.9 ND 12.0 1 2.13 1 3.04 1 ND ug/L 09/26/16 1.4 -- 25 1.95 1 ND ND 1.64 1 4.58 1 ND ug/L 04/28/17 1.4 -- 25 2.61 1 1.66 1 8.36 1 2.35 1 2.36 1 ND ug/L 10/17/17 1.4 -- 25 2.42 1 ND 7.92 1 3.42 1 2.88 1 ND ug/L 04/16/18 1.4 -- 25 2.33 1 2.14 1 2.45 1 2.94 1 3.67 1 ND ug/L 10/18/18 1.4 10 -- 1.88 1 2.26 1 1.51 1 1.61 1 1.70 1 ND ug/L 04/12/19 1.4 10 -- 1.54 1 4.16 1 2.39 1 1.78 1 2.09 1 ND ug/L 10/08/19 1.4 10 -- 2.45 1 ND 2.33 1 1.96 1 1.78 1 ND ug/L 04/20/20 1.4 10 -- 1.75 1 ND 2.28 1 2.49 1 1.85 1 ND ug/L 10/15/20 1.4 10 -- ND ND ND ND ND ND ug/L 04/29/21 1.4 10 -- ND ND ND ND ND ND ug/L 10/14/21 1.4 10 -- ND ND ND ND ND ND u /L 04/19/22 1.4 10 -- ND ND ND ND ND ND ►���� GOLDER 7of12 November 2022 TABLE 6 GL19131339.300 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Downstream Surface Water Detected Constituent Reporting Sample Upstream Surface Water Monitoring Points Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Zinc ug/L 03/01/00 -- -- 50 ND ND 31 58 68 ND SW Standard, Acute (ug/L) ug/L 09/01/00 -- -- 50 ND ND 130 50 60 ND SW-1 = 132.88 ug/L 03/01/01 -- -- 50 ND ND 68 ND 56 ND SW-2 = 120.15 ug/L 09/01/01 -- -- 50 120 ND 60 ND 50 ND SW-3 = 106.16 ug/L 03/01/02 -- -- 50 ND ND 70 50 60 ND SW-4 = 158.66 ug/L 09/01/02 -- -- 50 ND 180 80 ND ND ND SW-5 = 134.82 ug/L 04/01/03 -- -- 50 ND ND ND ND 50 ND SW Standard, Chronic (ug/L) ug/L 10/01/03 -- -- 50 ND ND 120 50 50 ND SW-1 = 133.97 ug/L 03/01/04 -- -- 50 ND ND 52 ND ND ND SW-2 = 121.14 ug/L 09/01/04 -- -- 50 58 ND 56 ND 59 ND SW-3 = 107.03 ug/L 05/01/05 -- -- 50 ND ND ND ND ND ND SW-4 = 159.96 ug/L 10/01/05 -- -- 50 ND ND ND ND ND ND SW-5 = 135.92 ug/L 04/01/06 -- -- 50 ND ND 51.6 ND ND ND ug/L 10/01/06 -- -- 50 ND ND 60.9 ND ND ND ug/L 04/10/07 -- -- -- 7.6 1 23.5 48.4 38.2 39.5 ND ug/L 09/25/07 -- -- -- 84.9 11.4 60.4 36.4 45.7 ND ug/L 05/05/08 1.0 -- 10 -- 5.8 1 6.4 1 154 20.4 ND ug/L 12/04/08 3.8 -- 10 -- 22.4 47.9 35.3 34.6 ND ug/L 04/13/09 3.4 -- 10 -- 24.9 21.4 25.8 27.2 ND ug/L 10/20/09 3.8 -- 10 70.0 7.62 1 45.2 30.9 33.2 ND ug/L 04/30/10 3.8 -- 10 -- 6.64 1 48.1 34.0 54.2 ND ug/L 10/11/10 3.8 -- 10 -- 32.0 30.1 22.8 22.9 ND ug/L 05/12/11 3.8 -- 10 76.2 10.1 33.5 27.7 36.9 ND ug/L 10/07/11 3.8 -- 10 102 62.1 45.0 60.5 32.1 ND ug/L 04/19/12 3.8 -- 10 5.98 1 ND 32.0 21.6 22.9 ND ug/L 10/26/12 3.8 -- 10 12.3 5.81 1 25.3 20.3 22.0 ND ug/L 04/25/13 3.8 -- 10 15.0 25.8 42.6 31.6 33.1 ND ug/L 09/12/13 3.8 -- 10 9.73 1 ND 29.8 14.9 17.1 ND ug/L 04/25/14 3.8 -- 10 66.3 7.92 1 63.3 37.2 33.7 ND ug/L 10/02/14 3.8 -- 10 144 3.94 1 63.6 34.9 34.0 ND ug/L 04/06/15 3.8 -- 10 16.4 5.33 1 57.3 30.0 51.6 ND ug/L 10/07/15 3.8 -- 10 117 7.88 1 25.2 1020 24.5 ND ug/L 04/20/16 4.4 -- 10 111 ND 95.5 31.5 44.7 ND ug/L 09/26/16 4.4 -- 10 5.08 1 5.21 1 20 16.4 27.7 ND ug/L 04/28/17 4.4 -- 10 11.0 6.98 1 64.8 21.1 20.1 ND ug/L 10/17/17 4.4 -- 10 8.83 1 ND 32.5 5.72 1 ND ND ug/L 04/16/18 4.4 -- 10 11.4 10.6 10.3 16.3 15.7 ND ug/L 10/18/18 4.4 10 -- 12.9 12.2 11.8 17.5 18.4 ND ug/L 04/12/19 4.4 10 -- 11.6 16.2 13.9 12.1 15.6 ND ug/L 10/08/19 4.4 10 -- 7.17 1 ND 6.31 1 6.76 1 7.48 1 ND ug/L 04/20/20 4.4 10 -- 27.1 ND 13.6 13.3 10.1 ND ug/L 10/15/20 4.4 10 -- 6.40 1 ND 14.5 10.3 11.7 ND ug/L 04/29/21 4.4 10 -- 6.18 1 ND 4.48 1 5.98 1 6.52 1 ND ug/L 10/14/21 4.4 10 -- 4.54 1 ND 4.77 1 10.5 7.25 1 ND ug/L 04/19/22 4.4 10 -- 6.67 1 6.19 1 7.15 1 14.6 21.0 ND Acetone ug/L 03/01/00 -- -- 100 ND ND ND ND ND -- SW Standard = 2000 ug/L ug/L 09/01/00 -- -- 100 ND ND ND ND ND ND ug/L 03/01/01 -- -- 100 ND ND ND ND ND ND ug/L 09/01/01 -- -- 100 ND ND ND ND ND ND ug/L 03/01/02 -- -- 100 ND ND ND ND ND ND ug/L 09/01/02 -- -- 100 ND ND ND ND ND ND ug/L 04/01/03 -- -- 100 ND ND ND ND ND ND ug/L 10/01/03 -- -- 100 ND ND ND ND ND ND ug/L 03/01/04 -- -- 100 ND ND ND ND ND ND ug/L 09/01/04 -- -- 100 ND ND ND ND ND ND ug/L 05/01/05 -- -- 100 ND ND ND ND ND ND ug/L 10/01/05 -- -- 100 ND ND ND ND ND ND ug/L 04/01/06 -- -- 100 ND ND ND ND ND ND ug/L 10/01/06 -- -- 100 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND 5.3 1 68 1 1.7 1 6.3 1 ND ug/L 05/05/08 0.62 -- 100 -- ND ND ND ND ND ug/L 12/04/08 1.5 -- 100 -- 7.9 1 9.1 1 7.6 1 7.8 1 ND ug/L 04/13/09 1.5 -- 100 -- ND ND ND ND ND ug/L 10/20/09 1.5 -- 100 ND ND 6.0 1 ND 6.2 1 ND ug/L 04/30/10 1.5 -- 100 -- 3.0 1 3.5 1 4.6 1 4.1 1 ND ug/L 10/11/10 1.5 -- 100 -- ND ND ND ND ND ug/L 05/12/11 1.2 -- 100 9.7 1 7.5 1 ND ND ND ND ug/L 10/07/11 1.2 -- 100 ND ND ND ND ND ND ug/L 04/19/12 1.2 -- 100 ND ND ND ND ND ND ug/L 10/26/12 1.2 -- 100 ND 4.4 1 ND ND ND ND ug/L 04/25/13 0.96 -- 100 1.0 1 1.0 1 ND ND 1.6 1 ND ug/L 09/12/13 1.2 -- 100 ND ND ND ND ND ND ug/L 04/25/14 1.2 -- 100 ND ND ND ND ND ND ug/L 10/02/14 1.2 -- 100 ND ND ND ND ND ND ug/L 04/06/15 1.2 -- 100 ND ND ND ND ND ND ug/L 10/07/15 1.2 -- 100 ND ND ND ND ND ND ug/L 04/20/16 1.2 -- 100 ND ND ND ND ND ND ug/L 09/26/16 10 -- 100 ND 11 1 ND ND 11 1 ND ug/L 04/28/17 10 -- 100 23 B 19 B 19 B 36 B 16 B 33 1 ug/L 10/17/17 10 -- 100 ND ND ND ND ND ND ug/L 04/16/18 10 -- 100 ND ND ND ND ND ND ug/L 10/18/18 10 20 -- ND ND ND ND ND ND ug/L 04/12/19 10 20 -- ND ND ND ND ND ND ug/L 10/08/19 10 20 -- ND ND ND ND ND ND ug/L 04/20/20 10 20 -- ND ND ND ND ND ND ug/L 10/15/20 10 20 -- ND ND ND ND ND ND ug/L 04/29/21 10 20 -- ND ND ND ND ND ND ug/L 10/14/21 10 20 -- ND ND ND ND ND 26 u /L 04/19/22 10 20 -- ND ND ND ND ND ND ►���� GOLDER 8of12 November 2022 TABLE 6 GL19131339.300 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Chloroform ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- 0.16 0.16 2.5 1 0.69 1 0.6 1 ND ug/L 09/25/07 -- -- -- 0.37 1 ND 8.4 1.2 1 1.2 1 ND ug/L 05/05/08 0.2 -- 5 -- ND ND ND ND ND ug/L 12/04/08 0.2 -- 5 -- 0.2 0.58 1 0.2 0.2 ND ug/L 04/13/09 0.2 -- 5 -- ND ND ND ND ND ug/L 10/20/09 0.2 -- 5 ND ND 2.4 1 2.1 1 1.3 1 ND ug/L 04/30/10 0.083 -- 5 -- ND 1.8 1 ND ND ND ug/L 10/11/10 0.2 -- 5 -- 0.2 7.4 2.0 1 2.0 1 ND ug/L 05/12/11 0.7 -- 5 ND ND ND 1 ND ND ND ug/L 10/07/11 0.7 -- 5 ND ND 2.4 1 0.92 1 1.1 1 ND ug/L 04/19/12 0.18 -- 5 ND ND 1.0 1 0.45 1 ND ND ug/L 10/26/12 0.18 -- 5 ND ND 1.2 1 ND ND ND ug/L 04/25/13 0.25 -- 5 ND ND 0.51 1 ND ND ND ug/L 09/12/13 0.18 -- 5 ND ND 1.8 1 0.76 1 0.76 1 ND ug/L 04/25/14 0.18 -- 5 1.6 1 ND 1.7 1 0.46 1 0.58 1 ND ug/L 10/02/14 0.18 -- 5 1.2 1 ND 0.95 1 1.0 1 ND ND ug/L 04/06/15 0.18 -- 5 ND ND 0.49 1 ND ND ND ug/L 10/07/15 0.18 -- 5 ND ND 2.4 1 0.92 1 1.0 1 ND ug/L 04/20/16 0.18 -- 5 ND ND ND ND ND ND ug/L 09/26/16 0.18 -- 5 ND ND 1.6 1 ND ND ND ug/L 04/28/17 0.18 -- 5 ND ND ND ND ND ND ug/L 10/17/17 0.18 -- 5 ND ND ND ND ND ND ug/L 04/16/18 0.18 -- 5 ND ND ND ND ND ND ug/L 10/18/18 0.18 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.18 1.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.18 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.18 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.18 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.18 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.18 1.0 -- ND ND ND ND ND ND ug/L 04/19/22 0.18 1.0 -- ND ND ND ND ND ND Dibromochloromethane ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND No SW Standard ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND 0.54 1 ND ND ND ug/L 09/25/07 -- -- -- ND ND 2.8 1 ND ND ND ug/L 05/05/08 0.28 -- 3 -- ND ND ND ND ND ug/L 12/04/08 0.32 -- 3 -- ND ND ND ND ND ug/L 04/13/09 0.32 -- 3 -- ND ND ND ND ND ug/L 10/20/09 0.32 -- 3 ND ND ND ND ND ND ug/L 04/30/10 0.067 -- 3 -- ND ND ND ND ND ug/L 10/11/10 0.32 -- 3 -- 0.32 6.6 1.2 1 4.6 ND ug/L 05/12/11 0.63 -- 3 ND ND ND ND ND ND ug/L 10/07/11 0.63 -- 3 ND ND ND ND ND ND ug/L 04/19/12 0.17 -- 3 ND ND ND ND ND ND ug/L 10/26/12 0.17 -- 3 ND ND ND ND ND ND ug/L 04/25/13 0.49 -- 3 ND ND ND ND ND ND ug/L 09/12/13 0.17 -- 3 ND ND ND ND ND ND ug/L 04/25/14 0.17 -- 3 ND ND ND ND ND ND ug/L 10/02/14 0.17 -- 3 ND ND ND ND ND ND ug/L 04/06/15 0.17 -- 3 ND ND ND ND ND ND ug/L 10/07/15 0.17 -- 3 ND ND ND ND ND ND ug/L 04/20/16 0.17 -- 3 ND ND ND ND ND ND ug/L 09/26/16 0.17 -- 3 ND ND ND ND ND ND ug/L 04/28/17 0.17 -- 3 ND ND ND ND ND ND ug/L 10/17/17 0.17 -- 3 ND ND ND ND ND ND ug/L 04/16/18 0.17 -- 3 ND ND ND ND ND ND ug/L 10/18/18 0.17 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.17 1.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.17 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.17 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.17 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.17 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.17 1.0 -- ND ND ND ND ND ND u /L 04/19/22 0.17 1.0 -- ND ND ND ND ND ND ►/ti�i COLDER 9of12 November 2022 TABLE 6 GL19131339.300 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 1,4-Dichlorobenzene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND SW Standard = 100 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.2 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.38 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.38 -- 1 -- ND ND ND ND ND ug/L 10/20/09 0.38 -- 1 ND ND ND ND ND ND ug/L 04/30/10 0.1 -- 1 -- ND ND ND ND ND ug/L 10/11/10 0.38 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.79 -- 1 ND ND ND ND ND ND ug/L 10/07/11 0.79 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.19 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.19 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.14 -- 1 ND ND 0.46 1 ND 0.19 1 ND ug/L 09/12/13 0.19 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.19 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.19 -- 1 ND ND ND ND ND ND ug/L 04/06/15 0.19 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.19 -- 1 ND ND ND ND ND ND ug/L 04/20/16 0.19 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.19 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.19 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.19 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.19 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.19 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.19 1.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.19 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.19 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.19 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.19 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.19 1.0 -- ND ND ND ND ND ND ug/L 04/19/22 0.19 1.0 -- ND ND ND ND ND ND Chloromethane ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.23 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.34 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.34 -- 1 -- ND ND ND ND ND ug/L 10/20/09 0.34 -- 1 ND ND ND ND ND ND ug/L 04/30/10 0.05 -- 1 -- ND ND ND ND ND ug/L 10/11 /10 0.34 -- 1 -- 0.82 B 0.34 0.34 B 0.62 B 0.43 1 ug/L 05/12/11 0.55 -- 1 ND ND ND ND ND ND ug/L 10/07/11 0.55 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.13 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.13 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.44 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.13 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.13 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.13 -- 1 ND ND ND ND ND ND ug/L 04/06/15 0.13 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.13 -- 1 ND ND ND ND ND ND ug/L 04/20/16 0.13 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.13 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.13 -- 1 0.42 1 ND ND 0.78 1 0.41 1 ND ug/L 10/17/17 0.13 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.13 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.13 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.13 1.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.13 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.13 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.13 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.13 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.13 1.0 -- ND ND ND ND ND ND u /L 04/19/22 0.13 1.0 -- ND ND ND ND ND ND ���`�� GOLDER 10of12 November 2022 TABLE 6 GL19131339.300 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Methylene Chloride ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.24 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.53 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.53 -- 1 -- ND ND ND ND ND ug/L 10/20/09 0.53 -- 1 ND ND ND ND ND ND ug/L 04/30/10 0.07 -- 1 -- ND ND ND ND ND ug/L 10/11/10 0.53 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.14 -- 1 ND ND ND ND ND ND ug/L 10/07/11 0.14 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.23 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.23 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.5 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.23 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.23 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.23 -- 1 ND ND ND ND 0.77 1 ND ug/L 04/06/15 0.23 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.23 -- 1 ND ND ND ND ND ND ug/L 04/20/16 0.23 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.23 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.23 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.23 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.23 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.23 1.0 -- ND ND ND ND ND 0.73 1 ug/L 10/08/19 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.23 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.23 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/19/22 0.23 1.0 -- ND ND ND ND ND ND Trichloroethene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND SW Standard ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND Human Health = 30 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.25 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.38 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.38 -- 1 -- ND ND ND ND ND ug/L 10/20/09 0.38 -- 1 ND ND ND ND ND ND ug/L 04/30/10 0.13 -- 1 -- ND ND ND ND ND ug/L 10/11/10 0.38 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.72 -- 1 ND ND ND ND ND ND ug/L 10/07/11 0.72 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.15 -- 1 ND ND 0.69 1 ND ND ND ug/L 10/26/12 0.15 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.23 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.15 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.15 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.15 -- 1 ND ND ND ND ND ND ug/L 04/06/15 0.15 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.15 -- 1 ND ND ND ND ND ND ug/L 04/20/16 0.15 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.15 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.15 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.15 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.15 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.15 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.15 1.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.15 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.15 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.15 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.15 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.15 1.0 -- ND ND ND ND ND ND u /L 04/19/22 0.15 1.0 -- ND ND ND ND ND ND ���`�� GOLDER 11of12 November 2022 TABLE 6 GL19131339.300 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Xylenes (Total) ug/L 09/25/07 -- -- ND ND ND ND ND ND ug/L 05/05/08 0.67 5 -- ND ND ND ND -- ug/L 12/04/08 0.4 5 -- ND ND ND ND -- ug/L 04/13/09 0.4 5 -- ND ND ND ND -- ug/L 10/20/09 0.4 5 ND ND ND ND ND ND ug/L 04/30/10 0.22 5 -- ND ND ND ND -- ug/L 10/11/10 0.4 5 -- ND ND ND ND ND ug/L 05/12/11 2.1 5 ND ND ND ND ND -- ug/L 10/07/11 2.1 5 ND ND ND ND ND -- ug/L 04/19/12 0.45 5 ND ND ND ND ND -- ug/L 10/26/12 0.45 5 ND ND ND ND ND -- ug/L 04/25/13 0.67 5 ND ND ND ND ND -- ug/L 09/12/13 0.45 5 ND ND ND ND ND -- ug/L 04/25/14 0.45 5 ND ND ND ND ND -- ug/L 10/02/14 0.45 5 ND ND ND ND ND -- ug/L 04/06/15 0.45 5 ND ND ND ND ND -- ug/L 10/07/15 0.45 5 ND ND ND ND ND -- ug/L 04/20/16 0.45 5 ND ND ND ND ND -- ug/L 09/26/16 0.45 5 ND ND ND ND ND -- ug/L 04/28/17 0.45 5 ND ND ND ND ND ND ug/L 10/17/17 0.45 5 ND ND ND ND ND ND ug/L 04/16/18 0.45 5 ND ND ND ND ND ND ug/L 10/18/18 0.45 3 ND ND ND ND ND ND ug/L 04/12/19 0.45 3.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.45 3.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.45 3.0 -- ND ND ND ND 1.5 J ND ug/L 10/15/20 0.45 3.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.45 3.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.45 3.0 -- ND ND ND ND ND ND u /L 04/19/22 0.45 3.0 -- ND ND ND ND ND ND 1,4-Dioxane ug/L 10/18/18 1.2 2.0 -- ND ND ND 2.1 1.5 J ND (SW Standard = 80 ug/L) ug/L 04/12/19 1.2 2.0 -- ND 1.6 J ND ND ND ND ug/L 10/08/19 1.2 2.0 -- ND 1.3 J ND 1.2 J ND ND ug/L 04/20/20 0.80 2.0 -- ND 1.6 J ND 0.89 J 0.91 J ND ug/L 10/15/20 0.80 2.0 -- ND 1.2 J ND ND 1.0 J ND ug/L 04/29/21 0.80 2.0 -- ND 1.7 J ND 1.0 J 0.87 J ND ug/L 10/14/21 0.80 2.0 -- ND 1.4 J ND 0.92 J 1.2 J ND u /L 04/19/22 0.80 2.0 -- ND 1.7 J ND ND ND ND Notes: B = blank -qualified data Shaded = concentrations above acute standards are shaded Bold = concentrations above chronic standards are bolded Data prior to April 2017 provided by S&ME Engineering # = EPA Action Level * = EPA Secondary MCL Blanks = field, trip and method blanks IMAC = Interim Maximum Allowable Concentration (under NC 2L Rules) EPA MCL = United States Environmental Protection Agency Maximum Contaminant Level MDL = laboratory method detection limit ug/L = micrograms per liter mg/L = milligrams per liter nM = nano mols SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting on 01/18/07 -- = no data available or no limit established NC 2L = North Carolina Water Quality Standard ND = not detected above the laboratory detection limit or stated reporting limit J = are estimated values between MDL and PQL. The following dilutions were noted for the April 2022 event: antimony & thallium by 2x (all points). present on laboratory electronic files. Hardness values collected last during the April 2021 event (mg/L): SW-1 = 116, SW-2 = 103, SW-3 = 89, SW-4 = 143, SW-5 = 118 ���`�� GOLDER 12of12 November 2022 GL19131339.300 I IF_1--III/ Summary of Surface Water Field Parameters White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SW Standard) Units Date SW-1 SW-2 SW-3 SW-4 SW-5 pH (Field) S. U. 03/25/99 7.27 7.26 7.30 -- S. U. 09/23/99 7.15 7.54 6.86 -- -- S. U. 03/27/00 8.06 8.15 7.89 8.19 8.02 S. U. 09/13/00 7.56 7.31 ND 7.25 7.06 S. U. 03/12/01 7.51 7.29 7.29 7.24 7.18 S. U. 09/13/01 7.51 7.51 7.22 7.24 7.18 S. U. 03/07/02 7.20 7.26 7.04 7.20 6.80 S. U. 09/18/02 7.43 7.33 -- 7.36 6.97 S. U. 04/15/03 7.87 7.60 7.61 7.50 7.62 S. U. 10/15/03 7.26 6.80 6.98 7.15 6.99 S. U. 03/24/04 9.50 8.80 8.99 8.63 8.63 S. U. 09/22/04 7.76 7.26 7.61 7.61 7.63 S. U. 05/10/05 9.56 9.41 9.36 9.45 9.28 S. U. 10/11/05 7.37 7.07 7.19 7.17 7.35 S. U. 04/24/06 7.11 6.99 6.86 7.20 7.38 S. U. 10/16/06 -- -- -- -- -- S. U. 04/10/07 6.24 6.64 6.55 7.02 7.16 S. U. 09/25/07 6.81 7.28 6.28 7.36 7.20 S. U. 05/02/08 -- -- -- -- -- S. U. 12/05/08 -- 7.82 7.56 7.85 7.98 S. U. 04/16/09 -- 8.01 8.13 7.89 7.89 S. U. 10/07/09 -- -- -- -- -- S. U. 04/28/10 -- -- -- -- -- S. U. 10/05/10 -- 8.05 7.65 8.05 7.81 S. U. 05/10/11 7.74 7.74 7.71 7.64 7.54 S. U. 10/06/11 7.21 7.26 6.90 7.22 7.70 S. U. 04/16/12 -- -- -- -- -- S. U. 10/24/12 -- -- -- -- -- S. U. 04/24/13 6.97 7.24 6.92 7.16 7.63 S. U. 09/09/13 7.68 8.30 7.59 7.76 7.69 S. U. 04/22/14 7.54 7.29 7.30 7.37 7.02 S. U. 10/01 /14 8.03 8.03 7.88 7.72 7.84 S. U. 04/07/15 8.13 7.77 7.59 7.84 7.79 S. U. 10/06/ 15 7.27 7.37 7.34 7.62 7.19 S. U. 04/ 18/ 16 7.57 7.68 7.56 7.29 7.39 S. U. 09/26/ 16 7.22 6.75 7.21 7.30 7.34 S. U. 04/25/ 17 7.41 7.40 7.14 7.28 7.22 S.U. 10/16/17 7.38 6.88 7.07 7.45 7.94 S. U. 04/16/18 7.48 7.38 7.42 7.67 7.38 S. U. 10/18/18 7.49 8.01 7.50 7.43 7.40 S. U. 04/08/19 7.07 6.50 7.69 7.28 7.50 S. U. 10/07/19 7.56 7.07 7.54 7.42 7.50 S. U. 04/20/20 8.00 7.40 7.72 7.88 7.57 S. U. 10/15/20 7.65 7.22 7.76 7.50 7.39 S. U. 04/29/21 7.57 7.46 7.44 7.46 7.44 S. U. 10/14/21 6.33 7.22 7.19 7.62 7.30 S. U. 04/19/22 7.71 7.52 7.53 7.55 7.21 Specific Conductance (Field) US/cm 03/25/99 347 155 309 -- -- US/cm 09/23/99 811 123 487 -- -- US/cm 03/27/00 417 186 363 318 315 US/cm 09/13/00 303 233 ND 471 438 us/cm 03/12/01 6919 6145 6145 6393 5960 us/cm 09/13/01 6919 7324 6063 6393 5960 US/cm 03/07/02 420 377 577 561 555 us/cm 09/18/02 248 271 -- 449 469 US/cm 04/15/03 74 254 261 345 325 US/cm 10/15/03 215 256 357 334 340 US/cm 03/24/04 293 253 410 378 379 US/cm 09/22/04 242 223 234 424 1 US/cm 05/10/05 283 271 391 387 390 US/cm 10/11 /05 167 215 319 264 269 US/cm 04/24/06 195 182 335 286 404 US/cm 10/16/06 -- -- -- -- -- US/cm 04/10/07 31.9 28.9 43.6 42.9 43.5 US/cm 09/25/07 31.0 13.0 57.0 53.0 54.0 US/cm 05/02/08 -- -- -- -- -- US/cm 12/05/08 -- 31.6 32.6 31.1 29.1 US/cm 04/16/09 -- 19.8 23.8 26.5 24.9 US/cm 10/07/09 -- -- -- -- -- US/cm 04/28/10 -- -- -- -- -- US/cm 10/05/10 -- 27.9 54 38.9 35.7 US/cm 05/10/11 256 209 345 412 405 US/cm 10/06/11 309 218 529 462 446 US/cm 04/16/12 -- -- -- -- -- US/cm 10/24/12 -- -- -- -- -- US/cm 04/24/13 237 242 381 362 380 US/cm 09/09/13 327 266 461 439 448 US/cm 04/22/14 337 275 430 375 420 US/cm 10/01 /14 276 228 454 444 441 US/cm 04/07/15 318 255 400 378 423 US/cm 10/06/15 229 151 337 299 284 US/cm 04/18/16 254 183 313 307 300 US/cm 09/26/16 293 214 439 412 427 US/cm 04/25/17 211 198 318 272 1272 US/cm 10/16/17 209 171 211 241 263 US/cm 04/16/18 233 215 234 217 227 US/cm 10/18/18 191 264 159 209 254 US/cm 04/08/19 129 210 158 270 248 US/cm 10/07/19 308 219 290 320 325 US/cm 04/20/20 189 212 194 192 197 US/cm 10/15/20 221 192 216 221 223 US/cm 04/29/21 251 208 228 259 252 US/cm 10/14/21 201 216 260 221 212 US/cm 04/19/22 262 204 202 225 244 %%%I) COLDER 1 of 2 November 2022 GL19131339.300 Summary of Surface Water Field Parameters White Street Landfill - Phase II, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SW Standard) Units Date SWA SW-2 SW-3 SW-4 SW-5 Temperature (Field) °C 03/25/99 11.81 11.22 13.86 -- -- °C 09/23/99 18.45 17.18 21.83 -- -- °C 03/27/00 14.85 15.73 17.17 15.53 14.29 °C 09/13/00 25.27 23.45 -- 24.96 25.53 °C 03/12/01 14.86 16.71 16.71 15.51 16.52 °C 09/13/01 14.86 16.65 16.74 15.51 16.52 °C 03/07/02 12.12 13.02 16.45 14.40 13.20 °C 09/18/02 18.66 16.70 -- 19.05 18.96 °C 04/15/03 21.65 22.24 20.92 20.11 17.23 °C 10/15/03 17.39 18.39 20.06 18.45 20.33 °C 03/24/04 16.00 18.06 17.17 15.83 17.22 °C 09/22/04 22.67 21.95 25.28 24.17 22.95 °C 05/10/05 24.09 22.85 23.97 23.69 21.78 °C 10/11 /05 18.60 18.30 20.60 20.00 19.80 °C 04/24/06 18.30 16.26 18.47 19.05 22.24 °C 10/16/06 -- -- -- -- -- °C 04/10/07 10.55 8.05 12.20 14.82 13.49 °C 09/25/07 17.06 21.61 23.84 18.61 19.48 °C 05/02/08 -- -- -- -- -- °C 12/05/08 -- 7.00 11.30 9.50 8.80 °C 04/16/09 -- 12.20 14.30 14.50 13.20 °C 10/07/09 -- -- -- -- -- °C 04/28/10 -- -- -- -- -- °C 10/05/10 -- -- -- -- -- °C 05/10/11 19.10 17.50 19.30 19.40 19.50 °C 10/06/11 16.16 13.10 19.10 17.80 18.67 °C 04/16/12 -- -- -- -- -- °C 10/24/12 -- -- -- -- -- °C 04/24/13 16.35 14.24 17.40 16.28 16.20 °C 09/09/13 24.70 22.80 25.50 24.80 25.00 °C 04/22/14 15.70 12.90 16.80 17.70 15.30 °C 10/01 /14 19.33 19.21 21.28 19.92 22.08 °C 04/07/15 17.50 16.70 18.50 17.90 16.00 °C 10/06/15 18.76 17.11 21.82 20.90 19.20 °C 04/18/16 18.85 18.38 19.83 19.23 18.57 °C 09/26/16 21.60 20.60 23.80 22.50 22.60 °C 04/25/17 21.17 19.60 20.20 20.56 10.05 °C 10/16/17 15.42 15.62 11.55 16.71 16.86 °C 04/16/18 11.75 9.66 8.67 12.24 12.24 °C 10/18/18 14.7 14.9 14.9 13.2 19.8 °C 04/08/19 17.4 15.7 19.1 17.5 19.3 °C 10/07/19 20.0 18.6 19.7 19.8 21.1 °C 04/20/20 16.8 15.7 16.4 15.5 15.3 °C 10/15/20 18.5 17.2 18.1 16.6 15.8 °C 04/29/21 21.3 19.9 17.6 20.5 20.7 °C 10/14/21 20.4 18.7 7.9 19.2 19.8 °C 04/19/22 15.1 12.9 14.7 13.5 13.4 Turbidity (Field) NTU 04/25/17 13.9 7.05 96.5 14.7 9.02 NTU 10/16/17 5.89 2.71 73.8 8.40 5.78 NTU 04/16/18 13.9 12.5 14.6 26.3 22.4 NTU 10/18/18 4.94 4.84 3.77 9.87 5.30 NTU 04/18/19 4.04 26.1 16.5 5.24 7.97 NTU 10/07/19 4.28 3.84 3.61 4.98 3.90 NTU 04/20/20 8.23 3.59 9.71 25.4 9.88 NTU 10/15/20 4.81 3.64 4.86 6.88 6.38 NTU 04/29/21 4.18 4.83 30.4 6.19 6.23 NTU 10/14/21 3.74 7.52 10.1 4.25 7.15 NTU 04/19/22 8.13 6.75 6.6 9.35 9.18 Oxidation Reduction Potential (field) my 04/25/17 69.8 50.6 72.3 79.4 77.3 my 10/16/17 81.7 60.9 174.0 81.3 10.7 my 04/16/18 119.5 95.2 202.0 190.5 115.8 my 10/18/18 115.1 61.7 97.2 143.1 7.9 my 04/08/19 124.5 143.2 5.3 101.8 332.5 my 10/07/19 137.1 17.2 179.6 159.5 170.9 my 04/20/20 179.1 7.7 117.5 144.2 77.8 my 10/15/20 198.9 -2.6 190.0 147.3 70.9 my 04/29/21 115.3 -32.8 236.6 154.1 141.1 my 10/14/21 301.3 -13.1 231.6 171.2 132.2 my 04/19/22 127.2 45 90.0 172.8 148.8 Dissolved Oxygen (field) mg/L 04/25/17 7.22 7.50 7.44 6.91 7.02 mg/L 10/16/17 8.33 8.08 8.37 8.01 6.90 mg/L 04/16/18 8.01 8.97 7.92 7.18 8.13 mg/L 10/18/18 5.95 10.74 6.99 7.06 5.81 mg/L 04/08/19 6.91 7.94 6.73 7.19 9.47 mg/L 10/07/19 5.32 4.89 5.90 5.03 6.19 mg/L 04/20/20 9.06 9.38 9.07 7.65 7.07 mg/L 10/15/20 7.37 8.20 7.47 8.05 7.72 mg/L 04/29/21 7.34 8.91 7.60 8.04 6.56 mg/L 10/12/21 7.21 8.24 9.31 8.35 6.82 m /L 04/19/22 7.18 9.70 9.34 8.35 7.35 Notes: S.U. = Standard Units NTU = Nephelometric Turbidity Units uS/cm = microsiemens per centimeter mg/L = milligramer per liter -- = no data available Data prior to April 2017 provided by S&ME Engineering %%%I) COLDER 2 of 2 November 29, 2022 GL19131339 Task 300 FIGURES \\till GOLDER SW-3 LOCATED -1600 FT. WEST SW-1 LOCATED -4900 FT. WEST 400 SW-2 LOCATED --500 FT. WEST �O '71 -683. NORTHERN Ea FFER AREA' SOUTHERN E UFFER AREA - SMW-4 693.84 \ ' 11-12J 693.520= \ LEGEND ;ANDFILL - OF WASTE `oo! `0 NM 00 i y SW-4 LOCATED -900 FT. EAST --------------------------- PL SURFACE WATER MONITORING POINT COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL LEACHATE SAMPLING LOCATION GROUNDWATER SURFACE CONTOUR APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) APPROXIMATE LIMITS OF WASTE APPROXIMATE PROPERTY LINE PHYTOREMEDIATION EBUFFER AREA NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL = 10 FEET 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 2 FEET. 3. GROUNDWATER ELEVATIONS MEASURED ON APRIL 25, 2017. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM. 7. SURFACE WATER LOCATIONS ARE APPROXIMATE. 8. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994 FACILITY AREA UPDATED MAY 18, 1996. 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. i JAILL RD ppp BRIM RD F 8R� E RD / - / - - KEE{y RD SITEol iz - - ��\ o Id C ��sr '� Rv rn 750 Qom HUMNE LA0.E A G �� BFjH PL C / - SITE LOCATION MAP NOT to SCALE —r= CLIENT CITY OF GREENSBORO YYYY-MM-DD 2022-10-05 DESIGNED XX%I-j GOLnER PREPARED REVIEWED GOLDER ASSOCIATES NC, INC DYR SIB DYR APPROVED RPK PROJECT WHITE STREET LANDFILL - PHASE II CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE GROUNDWATER SURFACE CONTOUR MAP APRIL 25, 2017 PROJECT NO. PHASE FIGURE 19-131339 300 0 0 < _ LEGEND 700.3 sss.� -1 - _ „- - - 680 719.9..681, 50.6❑ 690.E ~f 6958.9 �710.7 7 0683.. 8251 8. \ ,.s r� - •�,�-a••-•---• MS ANDFILL - 711.6 ,. 701 � � 86. 7oa.9 680 �fi91.7 O 686.24 - �� .- 0 4LIM S OF WASTE - 701.5 W. .. 6 .0 691.7 O / SMO os.s W � 3 i . �5.� =-.� D ✓,�. 685.93 NORTHERN EBUFFER AREA � -� //�,.•• /5.f AV 71 ,y 9. 685. 5 O� :�/ •••/ \ IIh 70s.2 NM 684.51 y I .�• 114 SOUTHERN EBUFFER AREA SW-3 LOCATED -1600 FT. WEST SW-1 LOCATED -4900 FT. WEST 400 SW-2 LOCATED --500 FT. WEST �O CLIENT CITY OF GREENSBORO y SW-4 LOCATED -900 FT. EAST YYYY-MM-DD 2022-10-05 DESIGNED XX%I-j GOLnER PREPARED REVIEWED GOLDER ASSOCIATES NC, INC JWS SIB DYR APPROVED RPK --------------------------- PL SURFACE WATER MONITORING POINT COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL LEACHATE SAMPLING LOCATION GROUNDWATER SURFACE CONTOUR APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) APPROXIMATE LIMITS OF WASTE APPROXIMATE PROPERTY LINE PHYTOREMEDIATION EBUFFER AREA NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET. 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET. 3. GROUNDWATER ELEVATIONS MEASURED ON APRIL 19, 2022 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM. 8. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994. TOPOGRAPHY IN VICINITY OF PHASE II AND III LANDFILLS UPDATED BASED ON AERIAL SURVEY DATED JUNE 1, 2020, PROVIDED BY CARTOGRAPHIC AERIAL MAPPING, INC. 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. T �AIIL RD olT9fP ° _N h� p pp ®'PIM RD e� KEELy RD 110 - SITEol - - �� C ��sr '� oRv Id _- It - - s7,so Qom _ - H/it E LAILE r al DR G As - SITE LOCATION MAP NOT TO SCALE 0 400 800 1" = 400' FEET PROJECT WHITE STREET LANDFILL - PHASE II CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE GROUNDWATER SURFACE CONTOUR MAP APRIL 19, 2022 PROJECT NO. PHASE FIGURE 19-131339 300 0 2 It 11 0 Benzene 1,4-Dichlorobenzene 3 2.5 2 m 1.5 1 0.5 0 ou\°�`�ti oa\ oa°1\yb oo-\°�\�y oa\°\yo otr\°1\y� oo- 1110 yo op\°ti`ryo oc\°1`v1 01P�,ry� tll-1 t11-2 t11-3 —III-6 —NC2L 1,1-Dichloroethane 20 18 16 14 12 10 8 6 4 2 0 tll-2 tll-3 -'--II-9 —NC2L Trichloroethene 4 3.5 3 Z5 2 1.5 1 0.5 0 Qd\, ~~ O�\Oy\~O Oq�O~\y� Op,O�\yy O4\Oy\~10 Op`Oy\�1 Op�Oy\~� 1�1O~\y� OQ\O�\~O Op�09\011 vry --* ..11-1 III-2 III-7 fSMW-3 —NC2L 1s 16 14 12 J 10 a 6 4 2 0 ti�~ry ti�~� ti�yo- ti�1h ti�yo ti�11 ti�~� ti�y� ti��o ti��~ ti�ry� tll-1 —HII-2 III-4A --0-11-6 —NC2L Tetrachloroethene 3 2.5 2 � 1.5 7 1 0.5 0 �yti \ti3 \tio- \ti5 �ti� \tip �ti� �tia �ryo �ryti \titi III-1 III-2 f11-7 —�®II-7121 —NC2L Vinyl Chloride 0 0 0 0 0 0 0 0 0 0 0 G� b� O O O O O O O O O O O �'—II-1 —0—II-2 t11-3 — -If-9 +SMW-1 tSMW-3 tSMW-4 —NC21 CITY OF GREENSBORO CONSULTANT YYYY-MM-DD 2022-10-07 PREPARED JS „NI) GO L D E R DESIGN DYR Golder Associates NC, Inc. REVIEW DYR APPROVED RPK WHITE STREET LANDFILL — PHASE II CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE TREND GRAPHS OF CONSTITUENT -OF -CONCERN CONCENTRATIONS PROJECT No PHASL :19-131339 300 0 FIGURE 3 'SOUTHERN V li OF WASTE 0 400 S00 1" = 400' FEET CLIENT CITY OF GREENSBORO CONSULTANT YYYY-MM-DD 2022-10-05 DESIGNED DYR %% % G O L D E R PREPARED SIB I) REVIEWED DYR GOLDER ASSOCIATES NC, INC. APPROVED RPK LEGEND ❑ SURFACE WATER MONITORING POINT O COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL ❑ LEACHATE SAMPLING LOCATION -- — — — — — GROUNDWATER SURFACE CONTOUR APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT (-1 NM NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) -"-'----"---------"---" APPROXIMATE LIMITS OF WASTE — PL APPROXIMATE PROPERTY LINE PHYTOREMEDIATION EBUFFER AREA BENZENEISOPLETH ND NON -DETECT NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL= 10 FEET, 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 2 FEET. 3. GROUNDWATER ELEVATIONS MEASURED AND BENZENE CONCENTRATIONS FROM APRIL25, 2017. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM, 7, SURFACE WATER LOCATIONS ARE APPROXIMATE, S. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994 FACILITY AREA UPDATED MAY 18, 1996. 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. 10. BENZENE CONCENTRATIONS IN MICROGRAMS PER LITER (ug/L). 11, J = ESTIMATED VALUE m � RD f pig RR111- AK,FBH 0J ,nO - 5 fN BFTHOgY J 9 SITE LOCATION MAP NOT TO SCALE PROJECT o WHITE STREET LANDFILL - PHASE II _ CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE - BENZENE ISOPLETH MAP WITH - GROUNDWATER SURFACE CONTOURS APRIL 25, 2017 PROJECT NO. PHASE FIGURE 19-131339 300 0 4 'SOUTHERN V li OF WASTE -10--5:1 CLIENT CITY OF GREENSBORO CONSULTANT YYYY-MM-DD DESIGNED %% % I) G O L D E R PREPARED REVIEWED GOLDER ASSOCIATES NC, INC. APPROVED 0 400 B00 1" = 400' FEET 2022-10-05 DYR SIB DYR RPK LEGEND ❑ SURFACE WATER MONITORING POINT O COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL O LEACHATE SAMPLING LOCATION — -- -- -- -- — — GROUNDWATER SURFACE CONTOUR N APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT f -1 NM NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) --'------'----------------- APPROXIMATE LIMITS OF WASTE — PL APPROXIMATE PROPERTY LINE PHYTOREMEDIATION EBUFFER AREA 1,4-DICHLOROBENZENE ISOPLETH ND NON -DETECT NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL= 10 FEET. 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 2 FEET. 3. GROUNDWATER ELEVATIONS MEASURED AND 1,4-DICHLOROBENZENE CONCENTRATIONS FROM APRIL 25, 2017. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM. 7. SURFACE WATER LOCATIONS ARE APPROXIMATE, 6. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994 FACILITY AREA UPDATED MAY 16, 1996. 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. 10. 1,4-DICHLOROBENZENE CONCENTRATIONS IN MICROGRAMS PER LITER (ug/L). 11. J = ESTIMATED VALUE 1 rr; B�ME B J aVVJ \L( 3 �p 0 J' tO SITE LOCATION MAP NOT TO SCALE PROJECT o WHITE STREET LANDFILL - PHASE II _ CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE - 1,4-DICHLOROBENZENE ISOPLETH MAP WITH — GROUNDWATER SURFACE CONTOURS APRIL 25, 2017 PROJECT NO. PHASE FIGURE 19-131339 300 0 rj 'SOUTHERN V li OF WASTE -10--5:1 CLIENT CITY OF GREENSBORO CONSULTANT YYYY-MM-DD DESIGNED %% % I) G O L D E R PREPARED REVIEWED GOLDER ASSOCIATES NC, INC. APPROVED 0 400 600 1" = 400' FEET 2022-10-05 DYR SIB DYR RPK LEGEND ❑ SURFACE WATER MONITORING POINT O COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL O LEACHATE SAMPLING LOCATION - - - - - - - GROUNDWATER SURFACE CONTOUR T > APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT f -1 NM NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) --'------'--------'-------' APPROXIMATE LIMITS OF WASTE - PL APPROXIMATE PROPERTY LINE PHYTOREMEDIATION EBUFFER AREA 1,1-DICHLOROETHANE ISOPLETH ND NON -DETECT NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL= 10 FEET. 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 2 FEET. 3. GROUNDWATER ELEVATIONS MEASURED AND 1,1-DICHLOROETHANE CONCENTRATIONS FROM APRIL 25, 2017. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM. 7. SURFACE WATER LOCATIONS ARE APPROXIMATE, 6. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994 FACILITY AREA UPDATED MAY 16, 1996. 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. 10. 1,1-DICHLOROETHANE CONCENTRATIONS IN MICROGRAMS PER LITER (ug/L). 11. J = ESTIMATED VALUE 1 rr; B�ME B J aVVJ \L( 5 NBFTH pR 0 J 9 SITE LOCATION MAP NOT TO SCALE PROJECT WHITE STREET LANDFILL - PHASE II _ CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE - 1,1-DICHLOROETHANE ISOPLETH MAP WITH — GROUNDWATER SURFACE CONTOURS APRIL 25, 2017 PROJECT NO. PHASE FIGURE 19-131339 300 0 6 'SOUTHERN V 11 OF WASTE -10--5:1 0 400 600 1" = 400' FEET CLIENT CITY OF GREENSBORO CONSULTANT YYYY-MM-DD 2022-10-05 DESIGNED DYR %% % G O L D E R PREPARED SIB I) REVIEWED DYR GOLDER ASSOCIATES NC, INC. APPROVED RPK LEGEND ❑ SURFACE WATER MONITORING POINT O COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL ❑ LEACHATE SAMPLING LOCATION -- — — — — — GROUNDWATER SURFACE CONTOUR APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT (-1 NM NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) -"-'----"-------'-"---" APPROXIMATE LIMITS OF WASTE — PL APPROXIMATE PROPERTY LINE PHYTOREMEDIATION EBUFFER AREA TETRACHLOROETHENE ISOPLETH ND NON -DETECT NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL= 10 FEET. 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 2 FEET. 3. GROUNDWATER ELEVATIONS MEASURED AND TETRACHLOROETHENE CONCENTRATIONS FROM APRIL 25, 2017. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM. 7. SURFACE WATER LOCATIONS ARE APPROXIMATE, 6. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994 FACILITY AREA UPDATED MAY 16, 1996, 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. 10. TETRACHLOROETHENE CONCENTRATIONS IN MICROGRAMS PER LITER (ug/L). 11. J = ESTIMATED VALUE RD � Br j M'NiTf ST ��J \ 4M1'l fi Hxa 3 raW ((( BFTH pR SITE LOCATION MAP NOT TO SCALE PROJECT o WHITE STREET LANDFILL - PHASE II _ CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE - TETRACHLOROETHENEISOPLETH MAP WITH - GROUNDWATER SURFACE CONTOURS APRIL 25, 2017 PROJECT NO. PHASE FIGURE 19-131339 300 0 ] IO INORTHERN EBUFFER AREA a v I� 'SOUTHERN EBUFFER AREA V li OF WASTE CLIENT CITY OF GREENSBORO CONSULTANT YYYY-MM-DD DESIGNED %% % I) G O L D E R PREPARED REVIEWED GOLDER ASSOCIATES NC, INC. APPROVED 0 400 600 1" = 400' FEET 2022-10-05 DYR SIB DYR RPK LEGEND ❑ SURFACE WATER MONITORING POINT O COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL O LEACHATE SAMPLING LOCATION — -- — -- — — — GROUNDWATER SURFACE CONTOUR APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT t -1 NM NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) ......"""""""' APPROXIMATE LIMITS OF WASTE PL APPROXIMATE PROPERTY LINE PHYTOREMEDIATION EBUFFER AREA TRICHLOROETHENE ISOPLETH NO NON -DETECT NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL= 10 FEET, 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 2 FEET. 3. GROUNDWATER ELEVATIONS MEASURED AND TRICHLOROETHENE CONCENTRATIONS FROM APRIL 25, 2017. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM. 7. SURFACE WATER LOCATIONS ARE APPROXIMATE, 6. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994 FACILITY AREA UPDATED MAY 16, 1996. 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. 10. TRICHLOROETHENE CONCENTRATIONS IN MICROGRAMS PER LITER (ug/L) 1 rr; B�ME B J 11 " ('/P� gS\ ✓ 5 NBFTH pR 0 J 9 SITE LOCATION MAP NOT TO SCALE PROJECT o WHITE STREET LANDFILL - PHASE II _ CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE - TRICHLOROETHENE ISOPLETH MAP WITH - GROUNDWATER SURFACE CONTOURS APRIL 25, 2017 PROJECT NO. PHASE FIGURE 19-131339 300 0 8 'SOUTHERN V li OF WASTE -10--5:1 0 400 600 1" = 400' FEET CLIENT CITY OF GREENSBORO CONSULTANT YYYY-MM-DD 2022-10-05 DESIGNED DYR %% % G O L D E R PREPARED SIB I) REVIEWED DYR GOLDER ASSOCIATES NC, INC. APPROVED RPK LEGEND ❑ SURFACE WATER MONITORING POINT O COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL O LEACHATE SAMPLING LOCATION — — — — — — — GROUNDWATER SURFACE CONTOUR T > APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT f -1 NM NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) -"-'----"---------"---" APPROXIMATE LIMITS OF WASTE — PL APPROXIMATE PROPERTY LINE PHYTOREMEDIATION EBUFFER AREA VINYL CHLORIDE ISOPLETH ND NON -DETECT NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL= 10 FEET. 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 2 FEET. 3. GROUNDWATER ELEVATIONS MEASURED AND VINYL CHLORIDE CONCENTRATIONS FROM APRIL 25, 2017. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM. 7. SURFACE WATER LOCATIONS ARE APPROXIMATE, 6. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994 FACILITY AREA UPDATED MAY 16, 1996. 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016 10. VINYL CHLORIDE CONCENTRATIONS IN MICROGRAMS PER LITER (ug/L). \c BPPME P� �1 / 11,('/' P/ S ' ✓ , SITE LOCATION MAP NOT TO SCALE PROJECT o WHITE STREET LANDFILL - PHASE II _ CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE - VINYL CHLORIDE ISOPLETH MAP WITH - GROUNDWATER SURFACE CONTOURS APRIL 25, 2017 PROJECT NO. PHASE FIGURE 19-131339 300 0 Q 'SOUTHERN V li OF WASTE oo� CLIENT CITY OF GREENSBORO CONSULTANT YYYY-MM-DD DESIGNED %% % I) G O L D E R PREPARED REVIEWED GOLDER ASSOCIATES NC, INC. APPROVED 0 400 Boo 1" = 400' FEET 2022-10-05 DYR SIB DYR RPK LEGEND ❑ SURFACE WATER MONITORING POINT 0 COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL O LEACHATE SAMPLING LOCATION — -- -- -- -- — — GROUNDWATER SURFACE CONTOUR N APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT f -1 NM NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) --'------'--------'-------' APPROXIMATE LIMITS OF WASTE — PL APPROXIMATE PROPERTY LINE PHYTOREMEDIATION EBUFFER AREA TOTAL VOLATILE ORGANIC COMPOUND (VOC) ISOPLETHS ND NON -DETECT NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL = 10 FEET. 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 2 FEET. 3. GROUNDWATER ELEVATIONS MEASURED AND TOTAL VOC CONCENTRATIONS FROM APRI L 25, 2017. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM, 7, SURFACE WATER LOCATIONS ARE APPROXIMATE, S. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994 FACILITY AREA UPDATED MAY 18, 1996. 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016 10. TOTAL VOC CONCENTRATIONS IN MICROGRAMS PER LITER (ug/L). i > WHITf ST AK�FB B o 0 SITE LOCATION MAP NOT TO SCALE PROJECT WHITE STREET LANDFILL - PHASE II _ CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE - TOTAL VOLATILE ORGANIC COMPOUND ISOPLETH MAP WITH - GROUNDWATER SURFACE CONTOURS APRIL 25, 2017 PROJECT NO. PHASE FIGURE 19-131339 300 0 10 SOUTHERN V 3 s; 680 \ OF WASTE Q 0 400 800 1" = 400' FEET CLIENT CITY OF GREENSBORO CONSULTANT YYYY-MM-DD 2022-10-05 DESIGNED DYR %% % G O L D E R PREPARED SIB I) REVIEWED DYR GOLDER ASSOCIATES NC, INC. APPROVED RPK LEGEND ❑ SURFACE WATER MONITORING POINT O COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL ❑ LEACHATE SAMPLING LOCATION -- — — — — — GROUNDWATER SURFACE CONTOUR APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT (-1 NM NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) -"-'----"---------"---" APPROXIMATE LIMITS OF WASTE — PL APPROXIMATE PROPERTY LINE PHYTOREMEDIATION EBUFFER AREA BENZENEISOPLETH ND NON -DETECT NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL= 10 FEET, 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 2 FEET. 3. GROUNDWATER ELEVATIONS MEASURED AND BENZENE CONCENTRATIONS FROM APRIL 19, 2022. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM, 7. SURFACE WATER LOCATIONS ARE APPROXIMATE, S. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994 FACILITY AREA UPDATED MAY 18, 1996. 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. 10. BENZENE CONCENTRATIONS IN MICROGRAMS PER LITER (ug/L). 11, J = ESTIMATED VALUE J . 'y 7 „E=r AK,F a go V. c 3' SITE LOCATION MAP NOT TO SCALE PROJECT o WHITE STREET LANDFILL - PHASE II _ CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE - BENZENE ISOPLETH MAP WITH - GROUNDWATER SURFACE CONTOURS APRIL 19, 2022 PROJECT NO. PHASE FIGURE 19-131339 300 0 11 SOUTHERN V 680 \ OF WASTE Q 0 400 800 1"=400' FEET CLIENT CITY OF GREENSBORO CONSULTANT YYYY-MM-DD 2022-10-05 DESIGNED DYR %% % I) G O L D E R PREPARED SIB REVIEWED DYR GOLDER ASSOCIATES NC, INC. APPROVED RPK LEGEND ❑ SURFACE WATER MONITORING POINT O COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL ❑ LEACHATE SAMPLING LOCATION -- — — — — — GROUNDWATER SURFACE CONTOUR APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT NM NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) --'------'----------------- APPROXIMATE LIMITS OF WASTE — PL APPROXIMATE PROPERTY LINE PHYTOREMEDIATION EBUFFER AREA 1,4—DICHLOROBENZENE ISOPLETH ND NON —DETECT NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL= 10 FEET. 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 2 FEET. 3. GROUNDWATER ELEVATIONS MEASURED AND 1,4—DICHLOROBENZENE CONCENTRATIONS FROM APRIL 19, 2022. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM. 7. SURFACE WATER LOCATIONS ARE APPROXIMATE, 8. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994 FACILITY AREA UPDATED MAY 18, 1996. 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. 10. 1,4—DICHLOROBENZENE CONCENTRATIONS IN MICROGRAMS PER LITER (ug/L) M LL RD BRUME ft P \UI /Jo > WHITf � qA-IF�yRa ab Ll 5 BFTMOgY� SITE LOCATION MAP NOT TO SCALE PROJECT WHITE STREET LANDFILL - PHASE II _ CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE — 1,4-DICHLOROBENZENE ISOPLETH MAP WITH - GROUNDWATER SURFACE CONTOURS APRIL 19, 2022 PROJECT NO. PHASE FIGURE 19-131339 300 0 12 SOUTHERN V 680 \ OF WASTE Q 0 400 800 1"=400' FEET CLIENT CITY OF GREENSBORO CONSULTANT YYYY-MM-DD 2022-10-05 DESIGNED DYR %% % G O L D E R PREPARED SIB I) REVIEWED DYR GOLDER ASSOCIATES NC, INC. APPROVED RPK LEGEND ❑ SURFACE WATER MONITORING POINT O COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL ❑ LEACHATE SAMPLING LOCATION -- - - - - - GROUNDWATER SURFACE CONTOUR APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT r: -1 NM NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) --'------'--------'-------' APPROXIMATE LIMITS OF WASTE - PL APPROXIMATE PROPERTY LINE PHYTOREMEDIATION EBUFFER AREA 1,1-DICHLOROETHANE ISOPLETH ND NON -DETECT NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL= 10 FEET. 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 2 FEET. 3. GROUNDWATER ELEVATIONS MEASURED AND 1,1-DICHLOROETHANE CONCENTRATIONS FROM APRIL 19, 2022. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM. 7. SURFACE WATER LOCATIONS ARE APPROXIMATE, 8. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994 FACILITY AREA UPDATED MAY 18, 1996. 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. 10. 1,1-DICHLOROETHANE CONCENTRATIONS IN MICROGRAMS PER LITER (ug/L) 1 / i Ire0 P \ WHITf ST �\ A�-�F`hRa 5 BFTMOgY� SITE LOCATION MAP NOT TO SCALE PROJECT WHITE STREET LANDFILL - PHASE II _ CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE - 1,1-DICHLOROETHANE ISOPLETH MAP WITH - GROUNDWATER SURFACE CONTOURS APRIL 19, 2022 PROJECT NO. PHASE FIGURE 19-131339 300 0 13 SOUTHERN V 680 \ OF WASTE Q 0 400 800 1"=400' FEET CLIENT CITY OF GREENSBORO CONSULTANT YYYY-MM-DD 2022-10-05 DESIGNED DYR %% % I) G O L D E R PREPARED SIB REVIEWED DYR GOLDER ASSOCIATES NC, INC. APPROVED RPK LEGEND ❑ SURFACE WATER MONITORING POINT O COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL ❑ LEACHATE SAMPLING LOCATION -- — — — — — GROUNDWATER SURFACE CONTOUR APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT (-1 NM NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) -"-'----"-------'-"---" APPROXIMATE LIMITS OF WASTE — PL APPROXIMATE PROPERTY LINE PHYTOREMEDIATION EBUFFER AREA TETRACHLOROETHENE ISOPLETH ND NON —DETECT NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL= 10 FEET. 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 2 FEET. 3. GROUNDWATER ELEVATIONS MEASURED AND TETRACHLOROETHENE CONCENTRATIONS FROM APRIL 19, 2022. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM. 7. SURFACE WATER LOCATIONS ARE APPROXIMATE, 8. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994 FACILITY AREA UPDATED MAY 18, 1996, 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. 10. TETRACHLOROETHENE CONCENTRATIONS IN MICROGRAMS PER LITER (ug/L) j M'NrTf ST �J � nK�F HRa SITE LOCATION MAP NOT TO SCALE PROJECT o WHITE STREET LANDFILL - PHASE II _ CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE - TETRACHLOROETHENEISOPLETH MAP WITH - GROUNDWATER SURFACE CONTOURS APRIL 19, 2022 PROJECT NO. PHASE FIGURE 19-131339 300 0 14 IO INORTHERN EBUFFER AREA a v I� 'SOUTHERN EBUFFER AREA V 680 \ OF WASTE CLIENT CITY OF GREENSBORO CONSULTANT YYYY-MM-DD DESIGNED %% % G O L D E R PREPARED I) REVIEWED GOLDER ASSOCIATES NC, INC. APPROVED 0 400 800 1" = 400' FEET 2022-10-05 DYR SIB DYR RPK LEGEND ❑ SURFACE WATER MONITORING POINT O COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL NONCOMPLIANCE GROUNDWATER MONITORING WELL ❑ LEACHATE SAMPLING LOCATION - GROUNDWATER SURFACE CONTOUR APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT r: -1 NM NOT MEASURED STREAMS MINOR CONTOURS (2 FT. INTERVAL) MAJOR CONTOURS (10 FT. INTERVAL) ......"""""""' APPROXIMATE LIMITS OF WASTE FRL APPROXIMATE PROPERTY LINE PHYTOREMEDIATION EBUFFER AREA TRICHLOROETHENE ISOPLETH NO NON —DETECT NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL= 10 FEET, 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 2 FEET. 3. GROUNDWATER ELEVATIONS MEASURED AND TRICHLOROETHENE CONCENTRATIONS FROM APRIL 19, 2022. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM. 7. SURFACE WATER LOCATIONS ARE APPROXIMATE, 8. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994 FACILITY AREA UPDATED MAY 18, 1996. 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. 10. TRICHLOROETHENE CONCENTRATIONS IN MICROGRAMS PER LITER (ug/L) MLLRO �t'A _ _ N'C� vG _ ^��J✓/ / BRUME ft L 11 r, 0- P > WHITf � /u�/J/ gk�F�hRa ab SITE LOCATION MAP NOT TO SCALE PROJECT o WHITE STREET LANDFILL - PHASE II _ CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE - TRICHLOROETHENE ISOPLETH MAP WITH - GROUNDWATER SURFACE CONTOURS APRIL 19, 2022 PROJECT NO. PHASE FIGURE 19-131339 300 0 15