MO-5684_20025_CA_MRP_20231103

GROUNDWATER MONITORING / FREE PRODUCT RECOVERY REPORT KERR’S HIKCORY READY-MIXED CONCRETE HICKORY, NORTH CAROLINA INCIDENT # 20025

Kerr’s Ready Mixed Concrete, Inc.

GROUNDWATER MONITORING / FREE PRODUCT RECOVERY REPORT OCTOBER 2023

KERR’S HICKORY READY-MIXED CONCRETE 1126 1ST AVENUE, SW HICKORY, CATAWBA COUNTY, NORTH CAROLINA 28602 UST INCIDENT NO.: 20025 CES PROJECT NUMBER: 7.0940
NOVEMBER 3, 2023
PREPARED BY: CES OF NC, PLLC 1701 Shenandoah Avenue, NW Roanoke, Virginia 24017 Phone: [phone]; Fax: [phone] PREPARED FOR: MR. ROGER KERR KERR’S HICKORY READY-MIXED CONCRETE, INC. 1126 1ST AVENUE SOUTHWEST HICKORY, NORTH CAROLINA NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY Mr. Brad Newton Division of Waste Management
Underground Storage Tank Section
Corrective Action Branch 610 East Center Avenue, Suite 301 Mooresville, North Carolina 28115
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Groundwater Monitoring / Free Product Recovery Report
GENERAL SITE INFORMATION
Site Identification Site Name: Kerr’s Hickory Ready-Mixed Concrete 1126 1st Avenue Southwest Hickory, Catawba County, North Carolina 28602 Facility I.D.: 00-0-0000003164 UST Incident Number: 20025 Risk Rank: Intermediate (I 160 D) UST Number: MO-5684 Latitude: 35.73118 Longitude: -81.3499 Source: RUST Database

Site Contacts Information UST Owner and Operator: Kerr’s Hickory Ready-Mixed Concrete, Inc. 1126 1st Avenue, Southwest Hickory, Catawba County, North Carolina 28602 [phone] Property Property Owner: Southern Concrete Materials, Inc. Occupant: Same as UST Owner/Operator PO Box 1040 Salisbury, NC 28145 Consultant : CES of NC, PLLC State 1701 Shenandoah Avenue, NW License No.: C-550 Roanoke, VA 24017 [phone] Analytical State Laboratory: Eurofins Environmental Testing Certification No.: 314 Address: 3355 McLemore Drive
Pensacola, Florida [phone] Information About the Release Date Discovered: December 15, 1998 Estimated Quantity of Release: Undetermined Cause of Release: UST systems Source of Release: Former diesel UST system Former UST Information: One (1) 10,000-gallon diesel
One (1) 2,000-gallon gasoline One (1) 550-gallon gasoline
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EXECUTIVE SUMMARY
As required, the following executive summary provides the most pertinent information for this assessment. For additional information please refer to subsequent sections of this report.

• CES of NC, PLLC (CES) was retained by Kerr’s Hickory Ready Mix, Inc. to complete a mobile
multi-phase extraction (MMPE) event in August/September 2023, and a limited groundwater monitoring event in October of 2023. The activities were directed in a correspondence issued by the North Carolina Department of Environmental Quality (NCDEQ) dated May 25, 2023. The
services were provided in general accordance with the NCDEQ UST Section “Assessment Guidelines” and “Corrective Action Guidelines” under approved task authorization 20025-35.
• A release of diesel fuel was discovered at the site in 1998 associated with underground storage tank (UST) closure activities. Related assessment, monitoring, and remediation activities have since
occurred at the site consisting of free product recovery via multiple methods including an active pneumatic skimming system, high vacuum extraction, sorbents, and hand bailing. The extent of contamination at the site has been adequately defined but free product continues to persist in select monitoring/recovery wells.
• An MMPE event was performed from August 28 to September 1, 2023. Prior to the MMPE, free product was detected in target extraction wells MW-4 (0.04-feet), RW-4 (0.01-feet), and RW-5 (0.04-feet). The 96-hour MMPE event recovered approximately 4,610-gallons of petroleum contact
water and approximately 9.07-equivalent gallons of product as vapor.
• Following the MMPE, CES personnel performed a limited groundwater monitoring event on October 6, 2023. Recovery wells RW-1, RW-3 and RW-5 were gauged, purged, and sampled. Free product was detected in monitoring well MW-4 (0.16-feet) and recovery well RW-4 (0.05-feet),
and therefore not sampled.
• Groundwater analytical results from the collected samples indicated exceedances of groundwater quality standards (2L standards), however the gross contamination levels (GCLs) were not exceeded.

• In conclusion, the MMPE appears to have been effective at removing free product. Gauging performed immediately following the MMPE event yielded no free phase petroleum in any monitoring/recovery well. However, limited free product continues to be observed periodically in MW-4, RW-4, and RW-5.

• Additionally, MMPE generally continues to be a cost-effective method of site remediation and should be continued to remove free product and reduce concentrations of dissolved-phase petroleum hydrocarbons to the extent it is feasible.
• CES of NC, PLLC recommends continued semi-annual groundwater monitoring and free product recovery events. Once free product is no longer present and groundwater has been remediated to
below gross contamination levels, the incident should be re-ranked and considered for restrictive closure.

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TABLE OF CONTENTS
General Site Information ................................................................................................................................ i
Executive Summary ...................................................................................................................................... ii List of Exhibits ............................................................................................................................................. iii List of Figures .............................................................................................................................................. iii
List of Tables ............................................................................................................................................... iv List of Appendices ....................................................................................................................................... iv 1.0 Introduction ...................................................................................................................................... 1 2.0 Background Information .................................................................................................................. 1 2.1 Site Location ................................................................................................................................. 1 2.2 Site History ................................................................................................................................... 1 3.0 Potential Receptor Information ........................................................................................................ 4 3.1 Water Supply Wells ...................................................................................................................... 4 3.2 Public Water Supplies ................................................................................................................... 4 3.3 Surface Water ................................................................................................................................ 4 3.4 Wellhead Protection Area ............................................................................................................. 4 3.5 Surrounding Land Use .................................................................................................................. 4 3.6 Subsurface Structures .................................................................................................................... 4 3.7 Regional Geology/Hydrology ....................................................................................................... 5
3.8 Deep Aquifers in the Coastal Plain Physiographic Province ........................................................ 5 4.0 Recent Activities .............................................................................................................................. 5 4.1 Mobile Multi-Phase Extraction ..................................................................................................... 5
4.1.1 Product Recovery Cost Comparison ..................................................................................... 6 4.2 Free Product Gauging and Groundwater Sampling Event ............................................................ 7 4.3 Groundwater Occurrence and Flow Direction .............................................................................. 7 4.4 Laboratory Results ........................................................................................................................ 8 4.5 Estimated Extent of Contamination .............................................................................................. 8 4.6 Evaluation of Contaminant Mass .................................................................................................. 9 5.0 Conclusions and Recommendations .............................................................................................. 10 5.1 Conclusions ................................................................................................................................. 10 5.2 Recommendations ....................................................................................................................... 10 6.0 Statements and Certification .......................................................................................................... 11 7.0 Remarks ......................................................................................................................................... 12 8.0 References ...................................................................................................................................... 12 LIST OF EXHIBITS
Exhibit 1 – A Summary of Maximum Contaminant Concentration Levels ................................................. 9 LIST OF FIGURES
Figure 1 Site Location Map Figure 2 Site Map Figure 3 Potentiometric Map (10/6/2023)
Figure 4A Estimated Extent of 1-Methylnaphtalene Above 2L Standards Figure 4B Estimated Extent of 2-Methylnapthalene Above 2L Standards Figure 4C Estimated Extent of Naphthalene Above 2L Standards
Figure 5 Cross Sections Location Map Figure 6A Cross Section A-A’ Figure 6B Cross Section B-B’
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LIST OF TABLES
Table 1 Summary of Petroleum Storage Tank System Information
Table 2 Summary of Well Construction Details Table 3 Summary of Groundwater Elevation Data Table 4 Summary of Groundwater Sampling Analytical Results
Table 5 Summary of Free Product Recovery Table 6 Evaluation of Change in Contaminant Mass Table 7 Contaminant Mass Estimate Calculations
LIST OF APPENDICES
Appendix A Relevant Correspondence Appendix B MMPE Report Appendix C Groundwater Sampling Logs Appendix D Laboratory Report(s) and Chain of Custody Documentation
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1.0 INTRODUCTION
The purpose of this report is to provide the details of recent assessment and remediation activities associated
with a release from an underground storage tank (UST) system at the Kerr’s Hickory Ready Mixed Concrete facility located at 1126 1st Avenue SW, Hickory, North Carolina (site). A topographic map of the U.S. Geological Survey (USGS) Hickory Quadrangle illustrating the site location is included as Figure 1. The
release was reported to the North Carolina Department of Environmental Quality (NCDEQ) on December 15, 1998. The site property is owned by Southern Concrete Materials, Inc. and is currently operated as a concrete plant. In correspondence dated May 25, 2023 (Appendix A), the NCDEQ directed the responsible party, Kerr’s Ready Mixed Concrete, Inc. (Kerr’s), to proceed with assessment and corrective action activities as recommended in the Groundwater Monitoring Report/Free Product Recovery Report dated November 14, 2022. Kerr’s retained CES of NC, PLLC (CES) for environmental consulting services. The services were provided in general accordance with the NCDEQ UST Section “Assessment Guidelines” and “Corrective Action Guidelines”.
2.0 BACKGROUND INFORMATION
The following provides a summary of background information pertaining to the site location, characteristics, and history regarding assessment and remediation of the release from the former UST system. Detailed site history has been provided in previous reports submitted to the NCDEQ.

2.1 SITE LOCATION The Kerr’s Hickory Ready-Mix Concrete facility, herein referred to as the “site”, is located at 1126 1st Avenue, Hickory, Catawba County, North Carolina. Figure 1 is a topographic vicinity map of the surrounding area from the U.S. Geological Survey (USGS) Hickory Quadrangle, 7.5-minute Series Topographic Quadrangle Map. A Site Map depicting the features of the facility is presented as Figure 2.
2.2 SITE HISTORY The history of the site’s USTs is summarized in Table 1. A UST system comprised of one (1) 10,000-
gallon diesel UST, one (1) 2,000-gallon gasoline UST, and one (1) 550-gallon gasoline UST was removed from the site on December 15, 1998, with assessment performed by Nationwide Tank & Environmental Services, Inc. No contaminated soil was excavated. Both field screening and laboratory analysis of collected
samples indicated levels of petroleum hydrocarbons ranging from 38.4 milligrams per kilogram (mg/Kg) to 361 mg/Kg beneath the diesel UST, which were in excess of the State Action Level of 10 mg/Kg at that time.
Phase I and II Limited Site Assessments (LSAs) were completed at the site by Kimbrell & Associates, Inc. (K&A) between June 8, 1999 and January 11, 2000. Monitoring wells MW-01, MW-02, MW-03, MW-04,
and MW-1D were installed and sampled during this time. Exceedances of the Gross Contamination Level (GCL) were reported in groundwater and multiple monitoring wells were found to contain approximately 5-feet of free product. It was estimated that as much as 50,000-gallons of free product may be present in the subsurface. An Aggressive Fluid/Vapor Recovery (AFVR) event was performed on June 9, 2000, and recovered approximately 3-gallons of liquid-phase diesel product. Product recovery rates in the monitoring wells were determined to range from approximately 0.51-to 1.89-feet per hour. A Comprehensive Site Assessment (CSA) was submitted by Terraine, Inc. (Terraine) on July 17, 2000.
Monitoring wells MW-05 through MW-08 and RW-01 were installed during this time. Groundwater was found to be impacted above regulatory standards and free product remained in multiple site monitoring
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wells. Approximately 6,000-gallons of free product was estimated to exist in the subsurface at this time.
The report concluded that the extent of contamination had been defined and that the release migrated vertically through the soil and possibly entered fractures in the bedrock located as shallow as 18-feet below ground surface near the source area. Furthermore, the removal of free product would be required to reduce
the site risk ranking. The North Carolina Department of Environment and Natural Resources, now known as NCDEQ, classified the site as “Intermediate Risk” due to the presence of free product in on-site monitoring wells. A receptor survey conducted as part of the CSA did not identify any water supply wells within 1,500 feet of the site, and municipal water provided by the City of Hickory is utilized in the area. The site land use has been classified as industrial/commercial. A Corrective Action Plan (CAP) was submitted by Terraine on November 17, 2000. The report included the results of a second AFVR event on September 18, 2000, which recovered approximately 80-gallons of liquid-phase diesel product. The report indicated that due to the presence of contamination within weathered
rock beneath the site, assessment and remedial options were limited. The proposed remedy for removal of free product was installation and four years operation of an active pneumatic skimming system which also involved installation of additional recovery wells. Once free product had been abated, natural attenuation
was recommended for both soil and groundwater. Additional AFVR events were conducted between December 4, 2000, and February 12, 2001, which
recovered a combined total of 20-gallons of product. A cumulative total of 103-gallons of free product was recovered from the site through February 2001 using AFVR. The free product skimming system recommended in the CAP became operational on October 5, 2001. Approximately 255.5-gallons of product were recovered with the skimming system from October 5, 2001, through March 5, 2004. Semi-annual groundwater monitoring and/or free product recovery occurred from September 2001 through March 2004. Additionally, five (5) new monitoring wells (MW-09 through MW-13) were installed at the site in October of 2002 to further delineate the plume. During a free product recovery event conducted on March 5, 2004, measurable free product was detected in monitoring wells MW-01, MW-03, MW-04, MW-08, and MW-13 and recovery wells RW-01, RW-04, and RW-05. Monitoring well MW-04 contained the thickest free product layer (2.45 feet).
Deactivation of the free product recovery system occurred sometime between March 5, 2004, and June 12, 2009. On June 12, 2009, Terraine personnel performed a free product bail-down test on monitoring well MW-04 and free product recovery activities on monitoring wells MW-08 and MW-13. Approximately 20 gallons of water and free product were removed during these activities. Based upon the data collected during the free product bail-down test, a free product recharge rate of 0.88 feet per day was predicted in monitoring
well MW-04. In June and July 2010, Terraine personnel conducted free product recovery using Geosorb Selective Product Recovery (Geosorb) systems into monitoring wells MW-04, MW-08, and MW-13. At the conclusion of the 8-week event, approximately 1.89-gallons of free product were recovered with the Geosorbs. It was determined that due to the relatively low thickness of free product at the site, hand bailing was an ineffective method of product recovery and therefore additional Geosorb deployment was recommended. On October 6, 2010, Terraine personnel mobilized to the site to determine what repairs needed to be made to MW-01, MW-02, MW-03, MW-06, MW-10, vapor extraction well VEW-01, and recovery wells RW-01, RW-02, RW-03, RW-04, and RW-05. With the exception of monitoring wells MW-06 and MW-10, all
of these wells were able to be opened and inspected. Terraine replaced missing well caps and locks and
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cleaned the rust from the recovery well vaults. Monitoring well MW-06 was covered with a concrete truck
that could not be moved at that time. Monitoring well MW-10 was presumed destroyed. Monitoring wells MW-01 and MW-03 and recovery wells RW-01, RW-04, and RW-05 historically contained free product; therefore, these wells were checked for the presence of free product on October 6, 2010. No free product
was detected in monitoring wells MW-01 and MW-03 or recovery well RW-01. Recovery wells RW-04 and RW-05 were dry. On February 14, 2011, Terraine personnel mobilized to the site to check monitoring wells MW-04, MW-08, and MW-13 for free product. Measurable free product layers were detected in these monitoring wells. After the collection of gauging data, Terraine hand bailed free product from monitoring well MW-04. After hand bailing the free product from monitoring well MW-04, Terraine installed Geosorb systems into wells MW-04, MW-08, and MW-13. Terraine mobilized to the site on February 22, February 28, March 11, March 18, March 25, and March 29, 2011, to replace the Geosorbs and gauge the free product thicknesses in monitoring wells MW-04, MW-
08, and MW-13. Terraine returned to the site on April 18, 2011, to collect gauging data from all the monitoring wells and to check monitoring wells MW-01, MW-03, MW-04, MW-08, and MW-13 and recovery wells RW-01, RW-04, and RW-05 for the presence of free product. Free product was only
encountered in monitoring well MW-04. Monitoring well MW-06 and recovery wells RW-02, RW-03, RW-04, and RW-05 were dry. AFVR and continued use of the Geosorb system combined with hand bailing was recommended to remove residual free product from the site, with free product checks occurring semi-
annually. On July 26, 2011, Terraine personnel mobilized to the site to check for the presence of free product. A measurable free product layer was only detected in monitoring well MW-4. Product was hand bailed from monitoring well MW-4 and a Geosorbs were subsequently deployed in monitoring wells MW-4, MW-8,
and MW-13. Terraine performed weekly site visits between August 2nd and September 14, 2011, Terraine to collect gauging data, hand bail product, and replace Geosorbs as needed.
CES performed free product recovery events on July 19, August 10, and September 13, 2012. Approximately 9.5-gallons of free product was recovered by hand bailing and Geosorbs were subsequently installed in monitoring/recovery wells RW-1, MW-1, and MW-4. MMPE supplemented by prior surfactant
injection was recommended to recover additional free product from the site. CES completed a limited groundwater monitoring event on February 4, 2013. Monitoring wells MW-1, MW-3, MW-4, and MW-13 were reported to contain free product at this time. Exceedances to groundwater quality standards were also reported. In December of 2013, CES completed additional assessment activities involving the installation of three (3) new monitoring wells (MW-15, MW-16, and MW-17) and groundwater monitoring. Proposed
monitoring well MW-14 was not installed due to refusal on bedrock prior to encountering the water table. At this time, free product was reported in monitoring/recovery wells MW-1, MW-3, MW-4, RW-4, and RW-5. The report concluded that impact to groundwater had not been fully delineated. Subsequent
groundwater monitoring performed in August 2014 arrived at similar conclusions. Semi-annual monitoring was performed by CES in 2015 and an MMPE event was performed in November
of 2015. Additional MMPEs and subsequent groundwater monitoring events were performed at the site in May 2016, April 2017, and June 2018.
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CES installed three (3) additional monitoring wells (MW-18, MW-19, and MW-20) at the site in May of
2018 for additional groundwater and free product delineation. A summary of well construction information is included in Table 2. The greatest thickness of free product was reported to be in monitoring well MW-4. The assessment concluded that the dissolved- and liquid-phase contaminant plumes were fully delineated.
Subsequent groundwater monitoring in November 2018 and August 2019 reported exceedances of groundwater quality standards. Free product was reported in monitoring/recovery wells MW-4, RW-1, and RW-4 in August 2019. Most recently, CES performed 96-hour MMPE events in March 2020, August 2020, June 2021, August 2021, April 2022, September 2022, and February 2023. Subsequent groundwater monitoring reported exceedances of groundwater quality standards but no exceedances of GCLs, however free product remains periodically present in monitoring wells MW-4, RW-4, and RW-5. The cumulative total of product recovered prior to this phase of investigation is approximately 757.93-gallons. MMPE was determined to be a cost-effective method of free product recovery and additional events enhanced with surfactant injection were recommended.
3.0 POTENTIAL RECEPTOR INFORMATION
CES evaluated potential receptors based on historically available information and current site conditions as discussed below. Historically, K&A and Terraine completed receptor survey activities as part of LSA and
CSA activities. CES personnel have completed windshield surveys during subsequent site visits and provided updated receptor information as required.
3.1 WATER SUPPLY WELLS No water supply wells have been identified to be in use within 1,500 feet of the site.
3.2 PUBLIC WATER SUPPLIES
Municipal water service is provided by the City of Hickory under Public Water System ID NC 01-18-010 for the site and surrounding area. The source of water is surface water from Lake Hickory, which is part of the Catawba River. No public water supply intakes are located near the site.
3.3 SURFACE WATER No surface water bodies have been identified within 500-feet of the site. The nearest natural surface water body is an unnamed intermittent tributary of Geitner Branch located approximately 1,000-feet south of the site. A man-made drainage ditch is located on the site, which reportedly drains to municipal sewer systems.
3.4 WELLHEAD PROTECTION AREA According to the NCDEQ Division of Water Resources (DWR), the site is not located within an approved wellhead protection area as defined by 42 USC 300h-7(e).
3.5 SURROUNDING LAND USE Land use in the vicinity of the site is primarily commercial and industrial. Single-family homes are located sporadically in the area. The site land use has been classified by the NCDEQ as industrial/commercial.
Owners and occupants of adjacent properties have been provided in previous submittals.
3.6 SUBSURFACE STRUCTURES
Reportedly, numerous subsurface utilities are buried in the surrounding area including a surface water drainage system which channels runoff from the site via concrete conduits. The burial depths of the subsurface utilities do not intercept the water table and are capped at ground surface by concrete or asphalt.
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No subsurface structures such as basements or utility vaults have been identified in the vicinity of the
release. Maps identifying these subsurface structures have been provided in previous submittals.
3.7 REGIONAL GEOLOGY/HYDROLOGY Based on the published 1985 Geologic Map of North Carolina, the site is located within the Inner Piedmont Physiographic Province. This area is characterized primarily by metamorphic rocks identified as biotite gneiss and schist described as inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, mica schist, and amphibolite containing small masses of granitic rock. Smaller pockets of fine-grained biotite gneiss described as strongly foliated with minor layers of amphibolite and muscovite schist are also in the area. Intrusive rock includes metamorphosed granitic rock.
In the inner piedmont, groundwater generally accumulated from direct precipitation. Saturated conditions typically occur in the undisturbed primary permeability within the saprolite weathered from the parent bedrock. Groundwater also occurs within secondary permeability of the crystalline bedrock through joints, fractures, and cleavage plains. Groundwater recharge occurs in interstream areas, while discharge is into streams, lakes, and mash areas.
3.8 DEEP AQUIFERS IN THE COASTAL PLAIN PHYSIOGRAPHIC PROVINCE The site is not located within the Coastal Plain Physiographic Province. 4.0 RECENT ACTIVITIES
CES has performed a MMPE, and subsequent limited groundwater monitoring event in accordance with the NCDEQ approved pre-approval task authorization (PATA) 20025-35. A copy of relevant correspondence and the approved PATA forms are included in Appendix A.
4.1 MOBILE MULTI-PHASE EXTRACTION CES contracted with Advanced Environmental Services, Inc. (AES) for completion of an MMPE event. On August 28, 2023, CES and AES equipment and personnel mobilized to the site for the set up and initiation of the MMPE event utilizing monitoring/recovery wells MW-4, RW-4, and RW-5 as the extraction wells. The extraction wells and nearby monitoring/recovery wells MW-1, MW-16, RW-1 and RW-3 were gauged for depth to water and depth to product. At this time, free product was detected in MW-4 (0.04-feet), RW-4 (0.01-feet), and RW-5 (0.04-feet). A summary of pre-MMPE gauging data is included in Appendix B. The MMPE system was activated at 1240 on August 28, 2023, with oversight by CES personnel. MMPE system monitoring was provided by AES personnel over the course of the event including collection of air
velocity, temperature, relative humidity, vacuum, and vapor concentration (measured with a photo-ionization detector [PID] calibrated to isobutylene) as shown in Appendix B. The MMPE system was actively recovering free product, contaminated groundwater, and soil vapors from the referenced extraction
wells for approximately 96-hours from 1240 on August 28, 2023, to 1240 September 1, 2023. CES personnel returned to the site on September 1, 2023, to supervise MMPE shut down activities and
obtain liquid level measurements from the monitoring/recovery wells. At this time, free product was not detected in any of the gauged monitoring or recovery wells as shown in Appendix B. Over the course of the 96-hour MMPE event, a total of approximately 4,610-gallons of liquid was recovered from the extraction wells. The MMPE report provided by AES, including the field data and disposal manifest, is included in Appendix B. Based on measurements obtained by AES during the event and calculations performed by
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CES, the flow and emissions calculations indicated approximately 55.78-pounds (9.07-equivalent gallons)
of product were recovered as emissions from the MMPE. Please note that although the product released at the site was diesel fuel, properties of gasoline were utilized in the emissions calculations because the petroleum components of semi-volatiles that realistically vaporize would have molecular weights more like
gasoline than diesel; much of the higher weighted product remains in the dissolved or liquid phases. Furthermore, the vapor monitoring device (PID) was more sensitive to registering gasoline rather than diesel components. The calculations are also provided in Appendix B. A summary of available liquid level and product recovery data at the site is included in Table 5. A cumulative total of approximately 767.00-gallons of product has been recovered from the site to date.
4.1.1 PRODUCT RECOVERY COST COMPARISON Vacuum Extraction (MMPE/AFVR) Based on the above information and the most recent published NCDEQ UST reasonable rate document, approximately 9.07 gallons of product were recovered from the recent 96-hour MMPE event at a cost of $8,717.50, or approximately $961.14 per gallon of product. Assuming homogeneous conditions, one 8-hour Aggressive Fluid Vapor Recovery (AFVR) event operated on the same extraction wells could theoretically be expected to recover approximately 8.3% of the
water and product as one 96-hour MMPE, or approximately 382.63-gallons and 0.753-gallons, respectively. Sorbents Fully saturated sorbent socks designed for deployment in 2-inch diameter wells can hold approximately 0.133-gallons of diesel product. Under the best-case scenario, assuming one (1) sock
becomes fully saturated over one (1) week (the same duration as an MMPE event), two (2) wells would produce 0.266-gallons of recovered product at a cost of $340.00 per site visit including the costs of mobilization, sorbents, sorbent maintenance, and free product level checks per well, or a minimum cost of approximately $1,278.20 per gallon of product recovered. This does not include cost of a drum for storage of spent sorbents or eventual drum disposal. The cost comparison of this method could be highly variable dependent on the actual volumes of product recovered. Hand Bailing
Hand bailing is generally reserved for appreciable amounts of free product and favorable recovery rates. Although significant product has historically been present in monitoring well MW-4, transmissivity rates under the current small quantity conditions are unknown. Historical product
recharge rates in monitoring well MW-4 were reported to be 0.88-feet per day. Assuming the historical rate holds true and with ideal conditions, a full 0.88-feet of product recovered from one 2-inch diameter well and one 4-inch diameter well would produce approximately 0.72-gallons of
product by hand bailing at a cost of $430 per site visit including mobilization, measuring product thickness, and bailing down to less than 1/8 inch per well, or a minimum cost of approximately $601.03 per gallon. This does not include cost of a drum for storage of recovered product or
eventual drum disposal and also assumes that adequate product is available and theoretical recovery rates are consistently achievable. The cost comparison of this method could be highly variable dependent on the actual volume of product recovered. Passive Skimming Passive skimmers could be deployed in two (2) wells for an initial cost of $2,050. Assuming skimmers with 0.5-liter (0.13-gallon) capacity are installed and the skimmers completely fill over the course of one week, approximately 0.26-gallons of product could potentially be captured under
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ideal conditions at a cost of $450 per sit visit including mobilization, gauging, and service of the
skimmers, or a minimum cost of approximately $1,730.77 per gallon. This does not include the initial skimmer cost, cost of a drum for storage of recovered product or eventual drum disposal, and assumes that adequate product and product recovery is available. The cost comparison of this
method could be highly variable dependent on the actual volume of product recovered. Active Skimming Reactivation of the on-site pneumatic passive skimming system could require multiple site visits and substantial up-front capital for evaluation, retrofits, and repairs. Further, the system is only effective when measurable amounts of free product are consistently available and regular site visits would be required for operations and maintenance. Additionally, the skimmer pumps currently on-site are designed for four-inch diameter wells only which currently exhibit small product thicknesses. Therefore, cost comparison for this product recovery method is not being evaluated at this time.
Recommended Product Recovery Method MMPE continues to be the recommended method of product recovery at the site. Assuming an estimated cost of at least $150,000 for design, installation, and ongoing operations and maintenance
of a new permanent remediation system operated for 5-years, approximately 16 MMPE events could be performed at equivalent cost. Although cost per gallon recovered for MMPE may be approaching some alternative methods discussed above, the alternative methods rely on the
presence of liquid product in the well(s) and do not actively draw product out of the formation.
4.2 FREE PRODUCT GAUGING AND GROUNDWATER SAMPLING EVENT
CES mobilized to the site on October 6, 2023, to complete a limited groundwater monitoring event. Monitoring/recovery wells MW-1, MW-3, MW-4, MW-8, MW-12, MW-13, MW-15, MW-16, MW-17, RW-1, RW-3, RW-4 and RW-5 were located, accessed, and gauged for depth to water and depth to product through the use of an electronic oil-water interface probe after allowing the liquid levels in the wells time to equilibrate to atmospheric pressure. Free product was detected in MW-4 (0.16-feet), and RW-4 (0.05-feet), and therefore, these wells were not sampled. Following gauging, recovery wells RW-1, RW-3 and RW-5 were purged of at least three (3) well volumes, or until dry, and sampled using dedicated disposable bailers. To reduce the potential of cross contamination, new, clean, disposable nitrile gloves were worn
during all phases of sample handling. Field notes indicating purge volumes, sample times, and physical parameters recorded at the time of sampling by a groundwater multi-parameter meter are included in Appendix C.
Samples were placed into laboratory supplied containers pre-filled with appropriate preservatives, labeled with indelible ink, entered onto a chain-of-custody form, and placed on wet ice in laboratory-supplied coolers pending transportation to the laboratory. The samples were submitted to Eurofins Environmental Testing located in Pensacola, Florida, a North Carolina certified laboratory (NC DENR No: 314), for chemical analysis. The samples were analyzed for polycyclic aromatic hydrocarbons (PAHs) by EPA
Method 8270E.
4.3 GROUNDWATER OCCURRENCE AND FLOW DIRECTION Depth to groundwater measurements ranged from 13.14-feet (MW-3) to 22.32-feet (MW-1) below top of casing. Groundwater elevations were calculated based on historical monitoring well top-of-casing elevation data, adjusted for the presence of free product, and ranged from 76.46-feet (MW-15) to 86.73-feet (MW-3). A summary of groundwater gauging and elevation data is presented in Table 3.
GROUNDWATER MONITORING / FREE PRODUCT RECOVERY REPORT KERR’S HIKCORY READY-MIXED CONCRETE HICKORY, NORTH CAROLINA INCIDENT # 20025

KERR’S HICKORY READY MIXED CONCRETE: GWM / FRP REPORT – OCTOBER 2023 8
Based on the currently available data, groundwater flow direction was interpreted to trend overall towards
the east/southeast as illustrated on Figure 3. Please note that the current groundwater flow direction interpretation may be influenced by the limited number of wells gauged.
4.4 LABORATORY RESULTS Laboratory analytical results were compared to the groundwater quality standards defined in Title 15A of the North Carolina Administrative Code, Subchapter 2L, Section .0202 (2L Standards) and GCLs published by the NCDEQ. Upon review of the laboratory analytical report, the groundwater samples collected from recovery wells, RW-1 and RW-5, contained concentrations of dissolved-phase petroleum hydrocarbons above 2L Standards. No detections exceeded the GCLs. A summary of laboratory analytical results for groundwater samples is provided in Table 4 and the current
estimated extents of 1-methylnaphthalene, 2-methylnaphthalene, and naphthalene above 2L Standards are illustrated on Figure 4A, Figure 4B, and Figure 4C, respectively. The laboratory report and chain of custody form are provided in Appendix D.
4.5 ESTIMATED EXTENT OF CONTAMINATION Soil sampling does not appear to have been performed since UST closure activities in 1998 and LSA
activities in 1999. Due to the presence of weathered rock necessitating the use of air hammer drilling techniques, collection of representative soil samples was generally not feasible during installation of monitoring wells at the site. Due to the lack of significant soil sample data and the age of available data,
the extent of residual adsorbed-phase contamination has not been evaluated at this time. Historically, liquid-phase free product has been detected in monitoring/recovery wells MW-1, MW-3, MW-4, MW-5, MW-6, MW-8, MW-13, MW-15, RW-1, RW-2, RW-3, RW-4, and RW-5. As reported in the CAP, the extent of free product historically comprised an approximate 9,500 square foot area with a volume of approximately 5,900-gallons while groundwater contamination above 2L Standards comprised an approximate 33,000 square foot area. According to currently available data, the occurrence of free product is proximal to recovery well RW-4 which is historically downgradient of the source. Historically, dissolved-phase (groundwater) contamination above 2L Standards has been reported at the locations of MW-1, MW-3, MW-4, MW-6, MW-7, MW-8, MW-11, MW-12, MW-13, MW-15, MW-16,
MW-17, MW-18, MW-19, MW-1D, RW-1, RW-3, RW-4, and RW-5. According to currently available data, the horizontal extent of groundwater contamination appears to be proximal to the locations of MW-4, RW-1, RW-3, RW-4, and RW-5 comprising at least an approximate 3,300-square foot area beneath the site.
The vertical extent of groundwater contamination is likely restricted by shallow bedrock although the deep well has not been sampled since 2019. The contaminant plume appears to be oriented primarily in a northwest-southeast direction and may be influenced by variation in the groundwater flow direction. The
monitoring well currently exhibiting the highest contaminant concentrations is RW-4,which has historically been reported to contain free product. Reported concentrations of contaminants of concern (COCs) in groundwater have generally decreased over time. Groundwater analytical data has not been consistently obtained from all site monitoring wells due to the occasional presence of free product. Although the number of and specific wells sampled has varied over time, most monitoring events since 2019 have included five (5) locations for sample collection. The most recent comprehensive monitoring event occurred in August of 2019. Since 2020, only analysis for PAHs has been performed coinciding with the collection of samples from the recovery wells.

GROUNDWATER MONITORING / FREE PRODUCT RECOVERY REPORT KERR’S HIKCORY READY-MIXED CONCRETE HICKORY, NORTH CAROLINA INCIDENT # 20025

KERR’S HICKORY READY MIXED CONCRETE: GWM / FRP REPORT – OCTOBER 2023 9
During the October 2023 monitoring event, concentrations of COCs in groundwater did not exceed the
GCL at any monitored location but 2L Standards were exceeded at RW-1 and RW-5. The current maximum contaminant concentration levels above 2L Standards observed during the October 2023 reporting period compared to the historical maximum contaminant concentration levels observed since 2013 are summarized
in Exhibit 1 below:
Exhibit 1 – A Summary of Maximum Contaminant Concentration Levels
Constituent 2L Standard GCL Current Maximum Concentration Location Historical Maximum Concentration Location & Date
Benzene 1 5,000 N/A N/A 4.2 MW-4 - 8/4/2016 Naphthalene 6 6,000 18.2 RW-5 220 MW-4 - 3/5/2015 Chloroform 70 70,000 N/A N/A 82 MW-15 - 8/4/2016 1-Methylnaphthalene 1 1,000 69.0 RW-5 324 RW-4 – 5/17/2022 2-Methylnaphthalene 30 12,000 19.7 RW-5 391 RW-4 – 5/17/2022 Benzo(b)fluoranthene 0.05 0.75 0.109 J RW-5 3.2 MW-9 – 12/23/2013 Bis(2-ethylexyl)phthalate 3 135 N/A N/A 110 MW-1D – 2/4/2013
Data presented in micrograms per liter (ug/L) Bold concentration exceeds 2L Standard A cross section location map is included as Figure 5. Updated cross sections indicating the current extent
of contamination above regulatory closure limits and the assumed smear zone thickness based on historical water table high and low are included as Figure 6A and Figure 6B. Well construction records for some wells, particularly RW-5 and MW-18 through MW-20, were unable to be located and therefore lithology is not included where the cross section transects may intersect these points.
4.6 EVALUATION OF CONTAMINANT MASS Contaminant mass was based on 1-methylnaphthalene, 2-methylnaphthalene, and naphthalene concentrations. Benzo(b)fluoranthene was not included in the calculations due to the lack of detections above the laboratory reporting limit. To determine contaminant mass, the average of each of the above constituent concentrations from all the monitoring/recovery wells samples containing concentrations above 2L Standards (affected monitoring/recovery wells) were calculated. In wells where free product was present, the most recent constituent concentrations were used. Estimated horizontal extents of total concentrations in groundwater (as discussed above) were determined
by each individual contaminant’s estimated isoconcentration area as shown on Figures 4A though 4C. Approximate volumes were then calculated utilizing the estimated areas, average thickness of contamination as determined from the average water column in each affected monitoring wells and the
estimated porosity (0.30) as reported in the CSA. The volumes were then multiplied by the individual contaminant concentrations to obtain a mass of each constituent in the shallow portion of the surficial aquifer which was then converted to pounds (lbs). Please note that this method relies on limited data points and assumes homogeneous distribution and isotropic concentrations of constituents of concern (COCs) and does not account for seasonal fluctuations in distribution of COCs or changes in the size of the plume. This estimate takes into account only dissolved-phase concentrations and not free product thickness measurements. The calculated total COC concentrations in groundwater may also fluctuate with changes in the number of monitoring wells sampled such as when additional wells are added to further define the extent of contamination. However, the method is effective for evaluation of trend data, expansion/contraction of the plume, and overall site remediation progress.
GROUNDWATER MONITORING / FREE PRODUCT RECOVERY REPORT KERR’S HIKCORY READY-MIXED CONCRETE HICKORY, NORTH CAROLINA INCIDENT # 20025

KERR’S HICKORY READY MIXED CONCRETE: GWM / FRP REPORT – OCTOBER 2023 10
The current estimated mass of COC groundwater was calculated to be approximately 0.23-lbs. Previously
submitted mass calculations were based on a standard area. An evaluation of change in contaminant mass and the most recent mass calculations are included in Table 6 and Table 7, respectively. 5.0 CONCLUSIONS AND RECOMMENDATIONS
5.1 CONCLUSIONS The following conclusions are provided based upon the data and site-specific information collected and
presented in this report:
• MMPE recovered approximately 4,610-gallons of liquid. Approximately 9.07-gallons of product were recovered at a cost of approximately $961.14 per gallon of product. Free product was not detected in the extraction wells immediately after the MMPE.
• MMPE continues to be the most cost-effective method of free product recovery at the site.
• Post-MMPE sampling, free product was detected in wells MW-4 and RW-4. The extent of free product distribution has decreased since August of 2019.
• Exceedances of 2L Standards were reported in monitoring/recovery wells RW-1 and RW-5. No
exceedances of the GCLs were reported.
• Current contaminant mass was determined to be approximately 0.23-lbs.
• The presence of free product contributes to the site’s risk ranking.
5.2 RECOMMENDATIONS CES recommends the following:
• Continue monitoring the site through semi-annual groundwater sampling. The next sampling event should be conducted in the 2nd quarter of 2024 and should include all monitoring/recovery wells,
which have historically contained free product to monitor for migration of free product and the contaminant plume.
• Perform an MMPE event in the 4th quarter of 2024 prior to the semi-annual groundwater sampling, on MW-4, RW-4, and RW-5 to remove residual free product and contaminated groundwater.
• Once free product is no longer present and groundwater is demonstrated to have been remediated
to levels below applicable GCLs, the incident should be re-ranked and considered for restrictive closure.
GROUNDWATER MONITORING / FREE PRODUCT RECOVERY REPORT
KERR’S HIKCORY READY-MIXED CONCRETE
HICKORY, NORTH CAROLINA
INCIDENT # 20025

KERR’S HICKORY READY MIXED CONCRETE: GWM / FRP REPORT – OCTOBER 2023 11
6.0 STATEMENTS AND CERTIFICATION
1 Enter the date the monitoring report was due. 10/31/2023 Will this report be submitted after
the established due date?
YES NO
2 Was any required information from the above template missing from this report? YES NO
IF the answer to question #1 or# 2 is “YES”, please provide additional information in this cell to explain what was
missing and why.
The MMPE event was not able to be scheduled until the first week of September, which pushed back the sampling
to the first week of October.
3 If applicable, will any of the proposed attenuation milestones under the schedule approved in
the Corrective Action Plan not be met? (within a reasonable margin of error)
N/A
YES NO
IF the answer to question #3 is “NO”, skip to the certification under #8 below.
IF the answer to question #3 is “YES”, please generally describe in this cell the possible reason(s) and outline proposed
remedies. (This should be described in more detail in the report text above.)
4 Does any known or suspected source zone soil contamination or free product remain outside of the
assessed area that could be inhibiting natural attenuation?
YES NO
5 Has there been an unexpected increase in contaminant mass sufficient to suggest a
potential new release from a separate onsite or offsite source?
YES NO
IF the answer to either question #4 or #5 is “YES”, generally describe in this cell any actions recommended to further
assess or clean up this known or suspected source. (This should be described in more detail in the report text above.)

6 Certification:
I, Rachel A. Raines, a Licensed Geologist for CES of NC, PLLC, do certify that the information contained in this report
is correct and accurate to the best of my knowledge.

Rachel A. Raines, L.G.
Project Geologist
NC Licensed Geologist #2739

CES of NC, PLLC. is licensed to practice geology in North Carolina. The certification number of the company or
corporation is C-550.

GROUNDWATER MONITORING / FREE PRODUCT RECOVERY REPORT KERR’S HIKCORY READY-MIXED CONCRETE HICKORY, NORTH CAROLINA INCIDENT # 20025

KERR’S HICKORY READY MIXED CONCRETE: GWM / FRP REPORT – OCTOBER 2023 12
7.0 REMARKS
The recommendations contained in this report represent CES’s professional opinions based upon the
currently available information and are arrived at in accordance with currently accepted professional standards. This report is based upon a specific scope of work requested by the client. The contract between CES and its client outlines the scope of work, and only those tasks specifically authorized by that contract
or outlined in this report were performed. This report is intended only for the use of CES’s client and anyone else specifically identified in writing by CES as a user of this report. CES will not and cannot be liable for unauthorized reliance by any other third party. Other than as contained in this paragraph, CES makes no express or implied warranty as to the contents of this report. 8.0 REFERENCES

• Report of the Tank Removal, Nationwide Tank & Environmental Services, Inc., December 1998
• Limited Site Assessment – Phase II, Kimbrell & Associates, Inc., March 29, 2000.
• Comprehensive Site Assessment, Terraine, Inc., July 27, 2000.
• Corrective Action Plan, Terraine, Inc., November 17, 2000.
• Semi-Annual Free Product Recovery Report, Terraine, Inc., April 29, 2004.
• Free Product Recovery Report, Terraine, Inc., July 10, 2009.
• Free Product Recovery Report, Terraine, Inc., August 31, 2010.
• Free Product Recovery Report, Terraine, Inc., May 2, 2011.
• Free Product Recovery Report, Terraine, Inc., October 9, 2011.
• Free Product Recovery Report, CES, October 2, 2012.
• Groundwater Monitoring Event Letter Report, CES, February 23, 2013.
• Additional Assessment & Groundwater Monitoring Report, CES, January 10, 2014.
• Groundwater Monitoring Report, CES, September 16, 2014.
• Groundwater Monitoring Report, CES, April 16, 2015.
• Mobile Multi-Phase Extraction / Groundwater Monitoring Report, CES, December 29, 2015.
• Mobile Multi-Phase Extraction / Groundwater Monitoring Report, CES, August 22, 2016.
• Mobile Multi-Phase Extraction / Groundwater Monitoring Report, CES, May 22, 2017.
• Additional Assessment & Groundwater Monitoring Report, CES of NC, May 15, 2018.
• Mobile Multi-Phase Extraction / Free Product Recovery Report, CES of NC, August 5, 2018.
• Groundwater Monitoring Report, CES of NC, December 20, 2018.
• Additional Assessment & Groundwater Monitoring Report, CES of NC, September 17, 2019.
• Groundwater Monitoring with Free Product Recovery Report, CES of NC, May 15, 2020.
• Groundwater Monitoring / Free Product Recovery Report, CES of NC, October 26, 2020.
• Groundwater Monitoring / Free Product Recovery Report, CES of NC, June 23, 2021.
• Groundwater Monitoring / Free Product Recovery Report, CES of NC, November 18, 2021.
• Groundwater Monitoring / Free Product Recovery Report, CES of NC, June 6, 2022.
• Groundwater Monitoring / Free Product Recovery Report, CES of NC, May 15, 2023.
GROUNDWATER MONITORING / FREE PRODUCT RECOVERY REPORT KERR’S HIKCORY READY-MIXED CONCRETE HICKORY, NORTH CAROLINA INCIDENT # 20025

KERR’S HICKORY READY MIXED CONCRETE: GWM / FPR REPORT – OCTOBER 2023

FIGURES

5104 Reagan Drive, Suite 7
Charlotte, NC 28206
540-343-6256 (office) 540-343-6259 (fax)
FIGURE 1
Site Location Map
Kerr's Ready Mixed Concrete
1126 1st Avenue SW
Hickory, North Carolina
Hickory, North Carolina Project: Groundwater
Monitoring Report
Client: Kerr's Ready Mixed
Concrete, Inc.
CES NC Job #: 7.0940
Date: 11/1/2023
Latitude:
35°43'50.7"N
Longitude:
81°21'29.7"W
U.S.G.S Topographic Map of the
Hickory Quadrangle, North Carolina, 7.5
Minute Series (2019)
Scale: 1:24,000 Contour Interval: 20 Feet
Source:
National Geodetic Vertical
Datum 1988
Horizontal Datum:North American Datum 1983
Vertical Datum:
Site Location
500 feet
1,000 feet
1,500 feet
MW-20MW-19MW-13MW-15MW-18MW-8MW-16MW-12RW-5MW-4RW-1RW-4RW-2MW-17MW-11MW-1RW-3VEW-01/MW-01DMW-3MW-2MW-5MW-6MW-10MW-9MW-7020'40'80'1 inch equals 40 feetKerr's Ready Mixed ConcreteSite MapGroundwater Monitoring ReportFigure 21126 1st Avenue SWHickory, North CarolinaKerr's Ready Mixed Concrete, Inc.LegendMonitoring Well (MW) LocationFormer UST Basin1,000-Gallon AST10,000-Gallon AST10,000-Gallon AST1,000-Gallon ASTDiesel DispenserCLIENT:LOCATION:OfficeBuildingTruckMaintenanceFacilityDairyQueenConcreteBatch PlantRemedialShed1234DD1234D
MW-20MW-19MW-13MW-15MW-18MW-8MW-16MW-12RW-5MW-4RW-1RW-4RW-2MW-17MW-11MW-1RW-3VEW-01/MW-01DMW-3MW-2MW-5MW-6MW-10MW-9MW-7020'40'80'1 inch equals 40 feetKerr's Ready Mixed ConcretePotentiometric Map (10/6/2023)Groundwater Monitoring ReportFigure 31126 1st Avenue SWHickory, North CarolinaKerr's Ready Mixed Concrete, Inc.LegendMonitoring Well (MW) LocationFormer UST Basin1,000-Gallon AST10,000-Gallon AST10,000-Gallon AST1,000-Gallon ASTDiesel DispenserGroundwater Elevation (feet)Groundwater Elevation Contour (feet)Groundwater Flow DirectionCLIENT:LOCATION:OfficeBuildingTruckMaintenanceFacilityDairyQueenConcreteBatch PlantRemedialShed124DD1234D(78.36)Groundwater Elevation Not Used[78.36](77.12)[86.73](76.96)(77.29)(76.58)(77.47)(76.46)(76.96)(77.58)(76.98)(77.42)(77.13)(78.40)77.0077.5077.0077.5078.00
MW-20MW-19MW-13MW-15MW-18MW-8MW-16MW-12RW-5MW-4RW-1RW-4RW-2MW-17MW-11MW-1RW-3VEW-01/MW-01DMW-3MW-2MW-5MW-6MW-10MW-9MW-7Kerr's Ready Mixed ConcreteEstimated Extent of 1-Methylnaphthaleneabove 2L Standards (10/6/2023)Groundwater Monitoring ReportFigure 4A1126 1st Avenue SWHickory, North CarolinaKerr's Ready Mixed Concrete, Inc.LegendMonitoring Well (MW) LocationFormer UST Basin1,000-Gallon AST10,000-Gallon AST10,000-Gallon AST1,000-Gallon ASTDiesel Dispenser1-Methylnaphthalene Concentration (ug/L)020'40'80'1 inch equals 40 feetCLIENT:LOCATION:OfficeBuildingTruckMaintenanceFacilityDairyQueenConcreteBatch PlantRemedialShed1234DD1234D 1-Methylnaphthalene Concentration ContourNot Sampled(289)(NS)(69.0)(0.472)(FP)(FP)(12.1)1
MW-20MW-19MW-13MW-15MW-18MW-8MW-16MW-12RW-5MW-4RW-1RW-4RW-2MW-17MW-11MW-1RW-3VEW-01/MW-01DMW-3MW-2MW-5MW-6MW-10MW-9MW-7Monitoring Well (MW) LocationFormer UST Basin1,000-Gallon AST10,000-Gallon AST10,000-Gallon AST1,000-Gallon ASTDiesel Dispenser2-Methylnaphthalene Concentration (ug/L)020'40'80'1 inch equals 40 feetCLIENT:LOCATION:OfficeBuildingTruckMaintenanceFacilityDairyQueenConcreteBatch PlantRemedialShed1234DD1234D(19.7)(<0.199)(7.13)Kerr's Ready Mixed ConcreteEstimated Extent of 2-Methylnaphthaleneabove 2L Standards (10/6/2023)Groundwater Monitoring ReportFigure 4B1126 1st Avenue SWHickory, North CarolinaKerr's Ready Mixed Concrete, Inc.Legend 2-Methylnaphthalene Concentration ContourNot Sampled(350)(NS)30(FP)(FP)
MW-20MW-19MW-13MW-15MW-18MW-8MW-16MW-12RW-5MW-4RW-1RW-4RW-2MW-17MW-11MW-1RW-3VEW-01/MW-01DMW-3MW-2MW-5MW-6MW-10MW-9MW-7Monitoring Well (MW) LocationFormer UST Basin1,000-Gallon AST10,000-Gallon AST10,000-Gallon AST1,000-Gallon ASTDiesel DispenserNaphthalene Concentration (ug/L)020'40'80'1 inch equals 40 feetCLIENT:LOCATION:OfficeBuildingTruckMaintenanceFacilityDairyQueenConcreteBatch PlantRemedialShed1234DD1234D(18.2)(<0.199)(FP)(FP)(9.65)Kerr's Ready Mixed ConcreteEstimated Extent of Naphthaleneabove 2L Standards (10/6/2023)Groundwater Monitoring ReportFigure 4C1126 1st Avenue SWHickory, North CarolinaKerr's Ready Mixed Concrete, Inc.LegendNaphthalene Concentration ContourNot Sampled(77.4)(NS)6
MW-20MW-19MW-13MW-15MW-18MW-8MW-16MW-12RW-5MW-4RW-1RW-4RW-2MW-17MW-11MW-1RW-3VEW-01/MW-01DMW-3MW-2MW-5MW-6MW-10MW-9MW-7020'40'80'1 inch equals 40 feetKerr's Ready Mixed ConcreteCross Section LocationsGroundwater Monitoring ReportFigure 51126 1st Avenue SWHickory, North CarolinaKerr's Ready Mixed Concrete, Inc.LegendMonitoring Well (MW) LocationFormer UST Basin1,000-Gallon AST10,000-Gallon AST10,000-Gallon AST1,000-Gallon ASTDiesel DispenserCLIENT:LOCATION:OfficeBuildingTruckMaintenanceFacilityDairyQueenConcreteBatch PlantRemedialShed1234DD1234DAA'BB'
ConcreteSilty SandSilty ClayClayey SiltSilt/Sand/ClayBedrock - SchistLithology Not AvailableWater LevelFree-ProductApproximate Extent of GroundwaterExceeding 2L StandardsWell LocationScreen Interval(if available)010200510Horizontal Scale(feet)Vertical Scale
(feet)Legend90.0080.0070.0095.0085.0075.0065.00100.00MW-9MW-6MW-1RW-1RW-4MW-4RW-5MW-16MW-15MW-13A'AWater Level - HighWater Level - LowWater Level - HighWater Level - LowElevation (feet)CLIENT:LOCATION:Kerr's Ready Mixed ConcreteCross Section A-A'Groundwater Monitoring ReportFigure 6A1126 1st Avenue SWHickory, North CarolinaKerr's Ready Mixed Concrete, Inc.
ConcreteSilty SandSilty ClayClayey SiltSilt/Sand/ClayBedrock - SchistLithology Not AvailableWater LevelFree-ProductApproximate Extent of GroundwaterExceeding 2L StandardsWell LocationScreen Interval(if available)010200510Horizontal Scale(feet)Vertical Scale
(feet)Legend90.0080.0070.0095.0085.0075.0065.00100.00MW-17RW-2RW-4RW-1MW-11BB'Water Level - HighWater Level - LowWater Level - HighWater Level - LowElevation (feet)CLIENT:LOCATION:Kerr's Ready Mixed ConcreteCross Section B-B'Groundwater Monitoring ReportFigure 6B1126 1st Avenue SWHickory, North CarolinaKerr's Ready Mixed Concrete, Inc.
GROUNDWATER MONITORING / FREE PRODUCT RECOVERY REPORT KERR’S HIKCORY READY-MIXED CONCRETE HICKORY, NORTH CAROLINA INCIDENT # 20025

KERR’S HICKORY READY MIXED CONCRETE: GWM / FPR REPORT – OCTOBER 2023

TABLES

UST ID
Number
Current /
Last
Contents
Previous
Contents
Capacity
(gallons)
Construction
Details
Tank
Dimensions
Description of
Associated
Piping and
Pumps
Date
Tank
Installed Status of UST
Was Release
Associated
with the UST
System?
1 Diesel Diesel 10,000 SW Steel Unknown Unknown 1980 Removed 12/15/98 Yes
2 Heating Oil Heating Oil 2,000 SW Steel Unknown Unknown 1971 Abandoned No
3 Gasoline Gasoline 2,000 SW Steel Unknown Unknown 1971 Removed 12/15/98 No
4 Gasoline Gasoline 550 SW Steel Unknown Unknown 1971 Removed 12/15/98 No5Heating Oil Heating Oil 500 SW Steel Unknown Unknown 1980 Abandoned No
AST ID
Number
Current /
Last
Contents
Previous
Contents
Capacity
(gallons)
Construction
Details
Tank
Dimensions
Description of
Associated
Piping and
Pumps
Date
Tank
Installed Status of AST
Was Release
Associated
with the AST
System?
1 Diesel Diesel 10,000 Unknown Unknown Unknown 1999 Active No
2 Diesel Diesel 10,000 Unknown Unknown Unknown 1999 Active No3GasolineGasoline1,000 Unknown Unknown Unknown 1999 Active No
Incident
Number
Material
Released
Date of
Release
20025 Diesel 12/15/98 Discovered during UST closure activities.
Table 1
Summary of Petroleum Storage Tank System Information
Kerr's Hickory Ready Mixed Concrete, Inc.
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Descrtiption of Release
WELL ID INSTALLATION
DATE
CASING
DIAMETER
(inches)
SCREENED
INTERVAL
(ft BGS)
TOC
ELEVATION
(ft)
TOTAL
DEPTH
(ft BGS)
MW-01 6/8/1999 2 24 - 34 99.44 34
MW-02 1/7/2000 2 23 - 33 98.73 33
MW-03 1/7/2000 2 23 - 33 99.87 33
MW-04 1/7/2000 2 17 - 27 95.74 27
MW-05 6/5/2000 2 20 - 35 100.49 35
MW-06 6/5/2000 2 20 - 35 101.06 35
MW-07 3/30/2001 2 18.5 - 33.5 97.61 33.5
MW-08 6/5/2000 2 19 - 34 97.33 34
MW-09 10/21/2002 4 23 - 33 102.90 33
MW-10 10/21/2002 4 24 - 34 101.94 34
MW-11 10/21/2002 4 24 - 34 100.31 34
MW-12 10/21/2002 4 24 - 34 98.65 34
MW-13 10/21/2002 4 23 - 33 95.79 33
MW-15 12/19/2013 2 14.5 - 24.5 95.06 24.5
MW-16 12/19/2013 2 15 - 30 95.58 30
MW-17 12/19/2013 2 17 - 32 98.40 32
MW-18 5/8/2018 2 10 - 30 95.25 30
MW-19 5/8/2018 2 10 - 30 94.51 30
MW-20 5/8/2018 2 10 - 30 94.62 30
MW-1D (VEW-01)1/7/2000 2 40 - 45 99.64 45
RW-01 6/5/2000 4 20 - 35 98.79 35
RW-02 3/30/2001 4 0 - 35 98.74 35
RW-03 3/30/2001 4 0 - 35 98.59 35
RW-04 3/30/2001 4 0 - 35 98.64 35RW-05 3/30/2001 4 Unknown 96.59 30
Notes:
All elevations relative to arbitrary elevation of 100.00 feet established by prior consultant.
Construction details based on historical well construction records and/or previously reported data.
NM - Not measured
NL - Not located
IA - Inaccessible
TOC - Top of casing
ft BGS - Feet below ground surface
ft bTOC - Feet below top of casing
Incident No. 20025
Table 2
Summary of Well Construction Details
Kerr's Hickory Ready Mixed Concrete, Inc.
1126 1st Avenue Southwest
Hickory, Catawba County, NC
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
01/28/00 30.45 24.84 5.61 73.6306/09/00 29.86 24.98 4.88 73.6209/18/00 30.43 25.32 5.11 73.2402/01/01 30.03 26.34 3.69 72.4603/30/01 29.32 26.58 2.74 72.3909/18/01 30.60 26.61 3.99 72.1401/15/02 30.00 27.64 2.36 71.3902/12/02 27.65 ----71.7907/02/02 31.40 28.05 3.35 70.8110/22/02 30.05 27.75 2.30 71.2902/03/03 28.74 27.15 1.59 72.0108/06/03 25.25 24.42 0.83 74.8803/05/04 24.93 24.83 0.10 74.5906/12/09 NM NM NM NM10/06/10 30.12 ----69.3204/18/11 27.40 ----72.0407/19/12 28.32 ----71.1208/10/12 28.81 ----70.6309/13/12 27.85 27.77 0.08 71.6602/04/13 29.36 29.31 0.05 70.1212/23/13 26.14 26.11 0.03 73.3208/25/14 26.75 ----72.6903/05/15 26.61 ----72.8311/16/15 26.73 ----72.7111/20/15 26.40 ----73.0411/23/15 26.69 ----72.7505/02/16 24.31 ----75.1305/06/16 25.44 ----74.0008/03/16 24.78 ----74.6604/03/17 27.78 ----71.66
05/09/18 26.91 ----72.53
11/14/18 24.97 ----74.47
08/21/19 22.85 ----76.5904/20/2009/10/20 22.30 ----77.1406/07/21
05/17/22 23.18 ----76.26
10/18/22 24.45 ----74.99
03/29/23 22.72 ----76.72
10/06/23 22.32 ----77.12
MW-1 99.44
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
Not Measured
Not Measured
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
02/04/13 26.84 ----71.8912/23/13 24.04 ----74.6908/25/14 23.73 ----75.0003/05/15 25.45 ----73.2811/16/15 25.13 ----73.6011/20/15 25.22 ----73.5111/23/15 25.02 ----73.7105/02/16 23.42 ----75.3105/06/16 23.53 ----75.2008/03/16 23.44 ----75.2904/03/17 26.43 ----72.30
05/09/18 25.42 ----73.31
11/14/18 23.70 ----75.03
08/21/19 21.36 ----77.37
04/20/20
09/10/2006/07/2105/17/2210/18/2201/28/00 29.52 25.12 4.40 73.9906/09/00 29.56 25.27 4.29 73.8606/28/00 29.95 25.74 4.21 73.4009/18/00 30.00 25.61 4.39 73.5012/04/00 30.03 26.04 3.99 73.1402/01/01 30.01 26.40 3.61 72.8503/30/01 30.03 26.51 3.52 72.7509/18/01 30.02 26.73 3.29 72.5701/15/02 27.43 ----72.4402/12/02 29.85 27.43 2.42 72.0207/02/02 30.05 27.98 2.07 71.5310/22/02 29.85 27.90 1.95 71.6302/03/03 28.70 27.30 1.40 72.3308/06/03 24.15 ----75.7203/05/04 24.92 24.50 0.42 75.3006/12/09 NM NM NM NM10/06/10 29.87 ----70.0004/18/11 27.20 ----72.6707/19/12 28.94 ----70.9308/10/12 23.01 ----76.8609/13/12 22.82 ----77.0502/04/13 29.91 28.73 1.18 70.9412/23/13 25.07 25.02 0.05 74.8408/25/14 24.92 ----74.9503/05/15 26.55 ----73.3211/16/15 26.35 ----73.5211/20/15 26.42 ----73.4511/23/1505/02/16 24.61 ----75.26
MW-3 99.87
Not Measured
Not Measured
Not Measured
MW-2 98.73
Not Measured
Not Measured
Unable to Access.
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
05/06/16 23.81 ----76.0608/03/16 24.62 ----75.2504/03/1705/08/18 27.05 ----72.8211/14/18 18.38 ----81.49
08/21/19 22.98 ----76.89
04/20/2009/10/20 16.83 ----83.0406/07/21 16.58 ----83.2905/17/22 11.41 ----88.4610/18/22 8.41 ----91.46
03/29/23 5.11 -----5.11
10/06/23 13.14 -----13.14
01/28/00 26.25 21.29 4.96 73.59
06/09/00 26.47 21.18 5.29 73.6406/28/00 26.40 21.23 5.17 73.62
09/18/00 26.72 21.53 5.19 73.31
12/04/00 26.65 21.98 4.67 72.9502/01/01 26.57 22.30 4.27 72.70
03/30/01 26.75 22.46 4.29 72.5409/18/01 26.61 ----69.13
01/15/02 27.10 23.35 3.75 71.74
02/12/02 26.70 23.58 3.12 71.6207/02/02 26.68 24.04 2.64 71.24
10/22/02 26.72 24.18 2.54 71.12
02/03/03 26.05 23.69 2.36 71.6408/06/03 22.83 20.64 2.19 74.72
03/05/04 23.50 21.05 2.45 74.27
06/12/09 27.81 26.83 0.98 68.7406/03/10 22.40 22.26 0.14 73.46
06/10/10 22.39 22.25 0.14 73.47
06/17/10 22.26 22.25 0.01 73.49
06/24/10 22.23 22.22 0.01 73.52
06/30/10 22.24 22.23 0.01 73.51
07/08/10 22.36 22.21 0.15 73.50
07/15/10 22.27 22.26 0.01 73.48
07/22/10 22.26 22.25 0.01 73.49
02/14/11 26.39 23.40 2.99 71.82
02/22/11 24.85 23.70 1.15 70.89
02/28/11 23.95 23.84 0.11 71.79
03/11/11 24.92 24.03 0.89 71.56
03/18/11 24.70 24.02 0.68 71.60
03/29/11 24.20 24.08 0.12 71.64
04/04/11 24.13 24.05 0.08 71.68
04/18/11 24.10 24.08 0.02 71.6607/19/12 25.25 ----70.49
MW-3 99.87
MW-4 95.74
Dry
Not Measured
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
08/10/12 26.02 ----69.72
09/13/12 25.31 24.85 0.46 70.81
02/04/13 28.28 26.52 1.76 68.9212/23/13 22.22 22.17 0.05 73.56
08/25/14 21.94 21.51 0.43 74.16
03/05/15 22.70 ----73.0411/16/15 24.75 22.95 1.80 70.99
11/20/15 25.56 ----70.18
11/23/15 23.20 ----72.5405/02/16 21.21 ----74.53
05/06/16 21.77 ----73.9708/03/16 21.23 ----74.51
04/03/17 24.30 ----71.44
05/09/18 23.78 22.38 1.40 71.9611/13/18 21.59 ----74.15
08/21/19 19.28 19.24 0.04 76.49
04/20/20 20.14 19.63 0.51 76.02
09/10/20 18.94 18.73 0.21 76.97
06/07/21 18.56 ----77.18
10/04/21 19.89 19.72 0.17 75.9905/17/22 19.54 ----76.20
10/18/22 19.86 19.82 0.04 75.91
03/29/23 19.14 19.11 0.03 76.62
10/06/23 18.91 18.75 0.16 76.9602/04/13 28.99 ----71.5012/23/13 26.35 ----74.1408/25/14 25.99 ----74.5003/05/15 27.61 ----72.8811/16/15 27.64 ----72.8511/20/15 19.94 ----80.5511/23/15 27.63 ----72.8605/02/16 25.75 ----74.7405/06/16 26.05 ----74.4408/03/16 25.67 ----74.8204/03/17 28.59 ----71.9005/09/18 27.74 ----72.7511/14/18 26.02 ----74.47
08/21/19 23.68 ----76.81
04/20/20
09/10/20
06/07/21
05/17/2210/18/22
MW-4 95.74
MW-5 100.49
Not Measured
Not Measured
Not MeasuredNot Measured
Not Measured
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
02/01/01 27.08 ------03/30/01 28.06 27.82 0.24 73.2009/18/01 28.76 ------02/12/02 29.83 27.90 1.93 72.8307/02/02 29.65 28.55 1.10 72.3210/22/02 28.55 28.49 0.06 72.5602/03/03 27.46 ------07/14/03 24.41 ------08/06/03 24.13 ------09/11/03 23.56 ------10/21/03 23.63 23.59 0.04 77.4612/30/03 24.15 ------03/05/04 24.57 ------06/12/09 NM NM NM NM04/18/11 DRY DRY DRY DRY07/19/12 DRY DRY DRY DRY08/10/12 NM NM NM NM09/13/12 NM NM NM NM02/04/1312/23/13 25.24 ----75.8208/25/14 25.13 ----75.9303/05/1511/16/15 27.27 ----73.7911/20/15 26.45 ----74.6111/23/15
05/02/16
05/06/1608/03/1604/03/17
05/09/18 27.89 ----73.17
11/14/18 24.91 ----76.15
08/21/19 22.67 ----78.3904/20/2009/10/2006/07/2105/17/22
10/18/2202/04/13 20.35 ----77.2603/05/15 19.46 ----78.1511/16/15 19.16 ----78.4503/05/15 21.05 ----76.5611/16/15 20.06 ----77.5511/20/15 20.11 ----77.5011/23/15 20.09 ----77.5205/02/16 19.48 ----78.1305/06/16 19.54 ----78.0708/03/16 19.56 ----78.0504/03/17 11.66 ----85.95
MW-7 97.61
Not Measured
MW-6 101.06
Not Measured
Unable to Locate
Not Measured
Not Measured
Unable to Acess.
Unable to Acess.
Unable to Acess.
Unable to Locate
Unable to Acess.
Not Measured
Unable to Acess.
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
05/09/18 23.01 ----74.6011/14/18 19.63 ----77.9808/21/19 17.94 ----79.67
04/20/20
09/10/20
06/07/21
05/17/2210/18/2202/12/02 23.20 ------07/02/02 24.80 23.49 1.31 73.6110/22/02 25.10 23.18 1.92 73.8202/03/03 24.60 22.46 2.14 74.5007/14/03 20.28 20.02 0.26 77.2708/06/03 19.97 19.81 0.16 77.4909/11/03 19.28 19.18 0.10 78.1310/21/03 19.24 19.15 0.09 78.1612/30/03 19.98 19.88 0.10 77.4303/05/04 20.42 20.20 0.22 77.0906/12/09 24.81 23.87 0.94 73.3006/03/10 21.45 21.14 0.31 76.1406/10/10 21.35 21.23 0.12 76.0806/17/10 21.25 21.22 0.03 76.1006/24/10 21.23 21.22 0.01 76.1106/30/10 22.24 22.23 0.01 75.1007/08/10 21.19 21.16 0.03 76.1607/15/10 21.26 21.25 0.01 76.0807/22/10 21.25 21.24 0.01 76.0902/14/11 22.70 22.65 0.05 74.6702/22/11 22.76 22.75 0.01 74.5802/28/11 22.77 ----72.4103/11/11 22.82 22.80 0.02 74.5303/18/11 22.80 22.79 0.01 74.5403/25/11 22.81 22.80 0.01 74.5303/29/11 22.84 ----72.3404/04/11 22.82 ----72.3604/18/11 22.84 ----72.3407/19/12 22.98 ----74.3508/10/12 23.01 ----74.3209/13/12 22.82 ----74.5102/04/13 23.62 ----71.5612/23/13 20.88 ----74.3008/25/14 20.44 ----74.7403/05/15 22.15 ----73.0311/16/15 22.00 ----73.1811/20/15 22.38 ----72.8011/23/15 22.00 ----73.1805/02/16 19.68 ----75.5005/06/16 19.86 ----75.32
MW-7 97.61
MW-8 95.18
Not Measured
Not Measured
Not MeasuredNot MeasuredNot Measured
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
08/03/16 20.91 ----74.2704/03/17 23.13 ----72.0505/09/18 22.35 ----72.83
11/13/18 20.48 ----74.70
08/21/19 18.13 ----77.05
04/20/20
09/10/20 17.73 ----77.4506/07/21 17.55 ----77.6305/17/22 18.77 ----76.4110/18/22 18.94 ----76.2403/29/23 18.13 ----77.05
10/06/23 17.89 77.2902/04/13 29.71 ----73.1912/23/13 26.88 ----76.0208/25/14 26.55 ----76.3503/05/15 28.95 ----73.9511/16/15 27.96 ----74.9411/20/15 28.01 ----74.8911/23/15 27.87 ----75.0305/02/16 26.29 ----76.6105/06/16 26.34 ----76.5608/03/16 26.33 ----76.5704/03/17 29.31 ----73.59
05/09/18 28.60 ----74.3011/14/18 26.55 ----76.3508/21/19 24.18 ----78.7204/20/2009/10/20
06/07/21
05/17/22
10/18/22
MW-8 95.18
MW-9
Not Measured
102.90
Not Measured
Not Measured
Not Measured
Not Measured
Not Measured
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
02/04/13
12/23/1308/25/1403/05/1511/16/1511/20/15
11/23/15
05/02/16
05/06/16
08/03/16
04/03/17
05/09/18
11/13/18
08/21/19 24.27 ----77.67
04/20/20
09/10/2006/07/2105/17/2210/18/2202/04/13 28.72 ----70.4212/23/13 25.64 ----73.5008/25/14 25.23 ----73.9103/05/15 26.95 ----72.1911/16/15 27.23 ----71.9111/20/15 27.54 ----71.6011/23/15 27.22 ----71.9205/02/16 24.96 ----74.1805/06/16 25.29 ----73.8508/03/16 24.86 ----74.2804/03/17 28.29 ----70.85
05/09/18 27.23 ----71.91
11/13/18 25.23 ----73.9108/21/19 23.79 ----75.3504/20/2009/10/2006/07/21
05/17/22
10/18/22
MW-10 101.94
Not Measured
Unable to Locate
Not Measured
Not Measured
Not Measured
Not Measured
Unable to Locate
Unable to Locate
Unable to Locate
Unable to Locate
Unable to Locate
99.14
Not Measured
Unable to Locate
Unable to Locate
Unable to Locate
Unable to Locate
Unable to Locate
Not Measured
Not Measured
Not Measured
Not Measured
Unable to LocateUnable to Locate
MW-11
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
02/04/13 27.15 ----70.2812/23/13 24.24 ----73.1908/25/14 23.89 ----73.5403/05/15 25.52 ----71.9111/16/15 25.76 ----71.6711/20/15 26.07 ----71.3611/23/15 25.76 ----71.6705/02/16 23.44 ----73.9905/06/16 23.72 ----73.7108/03/16 23.41 ----74.0204/03/17 26.85 ----70.58
05/09/18 26.05 ----71.38
11/13/18 24.03 ----73.40
08/21/19 21.65 ----75.78
04/20/20
09/10/20 21.32 ----76.1106/07/21 21.11 ----76.3205/17/22 21.29 ----76.1410/18/22 21.84 ----75.5903/29/23 21.25 ----76.18
10/06/23 20.85 ----76.5802/25/03 23.31 ------03/07/03 23.35 ------04/22/03 22.69 ------05/16/03 22.04 ------06/10/03 21.46 ------08/06/03 20.52 ------10/21/03 20.04 ------03/05/04 21.10 21.05 0.05 74.7306/12/09 25.91 25.85 0.06 69.9306/03/10 22.07 22.01 0.06 73.7706/10/10 22.01 21.98 0.03 73.8006/17/10 21.99 21.98 0.01 73.8106/24/10 21.97 21.96 0.01 73.8306/30/10 22.02 22.01 0.01 73.7807/08/10 21.96 21.93 0.03 73.8507/15/10 21.97 21.96 0.01 73.8307/22/10 21.97 21.96 0.01 73.8302/14/11 23.55 23.40 0.15 72.3602/22/11 23.61 23.49 0.12 72.2802/28/11 23.55 ----72.2403/11/11 23.61 23.60 0.01 72.1803/18/11 23.61 23.60 0.01 72.1803/25/11 23.62 23.61 0.01 72.1703/29/11 23.60 ----72.1904/04/11 23.58 ----72.2104/18/11 23.61 ----72.1807/19/12 23.84 ----71.95
MW-13 95.79
MW-12 97.43
Not Measured
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
08/10/12 23.75 ----72.0409/13/12 23.53 ----72.2602/04/13 24.41 24.33 0.08 71.4712/23/13 19.46 ----76.3308/25/14 21.04 ----74.7503/05/15 22.73 ----73.0611/16/15 22.75 ----73.0411/20/15 23.00 ----72.7911/23/15 22.81 ----72.9805/02/16 19.79 19.75 0.04 76.0305/06/16 19.95 19.90 0.05 75.8808/03/16 20.03 19.98 0.05 75.8004/03/17 23.83 23.74 0.09 72.0305/09/18 23.18 23.11 0.07 72.6711/13/18 20.04 ----75.75
08/21/19 18.78 ----77.0104/20/2009/10/20 18.57 ----77.2206/07/21 18.40 ----77.3905/17/22 18.69 ----77.10
10/18/22 19.14 ----76.65
03/29/23 NM ----NM
10/06/23 18.32 -----18.3212/23/13 21.83 ----73.2308/25/14 21.35 ----73.7103/05/15 22.56 ----72.5011/16/15 22.98 22.97 72.0811/20/15 23.11 ----71.9511/23/15 23.03 ----72.0305/02/16 19.58 ----75.4805/06/16 19.83 ----75.2308/03/16 19.69 ----75.3704/03/17 23.64 ----71.4205/09/18 23.28 ----71.7811/13/18 21.37 ----73.6908/21/19 19.07 ----75.99
04/20/20
09/10/20 18.88 ----76.18
06/07/21 18.78 ----76.28
05/17/22 18.96 ----76.10
10/18/22 19.39 ----75.6703/29/23 19.06 ----76.0010/06/23 18.60 -----18.60
MW-13 95.79
Not Measured
MW-15 95.06
Not Measured
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
12/23/13 21.79 ----73.7908/25/14 21.38 ----74.2003/05/15 22.57 ----73.0111/16/15 23.06 ----72.5211/20/15 23.36 ----72.2211/23/15 23.05 ----72.5305/02/16 20.96 ----74.6205/06/16 21.43 ----74.1508/03/16 19.60 ----75.9804/03/17
05/09/18 23.21 ----72.37
11/13/18 21.43 ----74.15
08/21/19 19.09 ----76.49
04/20/20
09/10/20 18.59 ----76.99
06/07/21 18.46 ----77.1205/17/22 19.53 ----76.0510/18/22 19.67 ----75.9103/29/23 18.98 ----76.6010/06/23 18.62 ----76.9612/23/13 23.82 ----74.5808/25/14 23.48 ----74.9203/05/15 24.89 ----73.5111/16/15 24.93 ----73.4711/20/15 25.05 ----73.3511/23/15 24.84 ----73.5605/02/16 23.13 ----75.2705/06/16 23.29 ----75.1108/03/16 23.22 ----75.1804/03/17 26.18 ----72.22
05/09/18 25.26 ----73.14
11/14/18 23.48 ----74.9208/21/19 21.14 ----77.2604/20/2009/10/20 20.38 ----78.0206/07/21 20.17 ----78.23
05/17/22 22.14 ----76.26
10/18/22 22.18 ----76.22
03/29/23 20.87 ----77.53
10/06/23 20.82 -----20.82
05/09/18 24.45 ----70.7911/13/18 22.51 ----72.7308/21/19 20.15 ----75.1004/20/20
09/10/20
06/07/21
05/17/22
10/18/22
MW-16 95.58
MW-18 95.25
MW-17 98.40
Not Measured
Unable to Access.
Not Measured
Not Measured
Not Measured
Not Measured
Not Measured
Not Measured
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
05/09/18 23.95 ----70.5611/13/18 21.84 ----72.6708/21/19 20.39 ----74.12
04/20/20
09/10/20
06/07/21
05/17/2210/18/2205/09/18 24.62 ----70.0011/14/18 23.34 ----71.2808/21/19 22.51 ----72.11
04/20/20
09/10/20
06/07/21
05/17/22
10/18/2202/04/13 28.27 ----71.3712/23/13 25.53 ----74.1108/25/1403/05/15 26.73 ----72.9111/16/15 26.54 ----73.1011/20/15 26.87 ----72.77
11/23/15 26.76 ----72.8805/02/16 24.93 ----74.7105/06/16 25.38 ----74.2608/03/16
04/03/17 27.85 ----71.7905/09/18
11/13/18
08/21/19 21.58 ----78.06
04/20/20
09/10/2006/07/21 22.05 ----77.5905/17/2210/18/22
MW-19
MW-20
Unable to Access.
MW-1D
(VEW-1)99.64
Not Measured
Not Measured
Not Measured
Unable to Access.
Not Measured
Not Measured
Unable to Access.
Not Measured
Not Measured
Not Measured
Unable to Access.
94.51
Not Measured
Not MeasuredNot Measured
Not Measured
Not Measured
94.62
Not Measured
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
06/05/00 25.68 25.62 0.06 73.1609/18/00 27.93 25.72 2.21 72.6902/01/01 27.00 26.81 0.19 71.9503/30/01 27.06 26.94 0.12 71.8304/19/01 26.87 26.78 0.09 71.9909/18/01 26.69 26.53 0.16 72.2301/15/02 27.92 26.25 1.67 72.2502/12/02 27.92 27.30 0.62 71.3804/02/02 28.06 27.51 0.55 71.1807/02/02 28.44 27.80 0.64 70.8810/22/02 28.36 27.80 0.56 70.8902/03/03 27.11 26.90 0.21 71.8507/14/03 24.30 24.20 0.10 74.5708/06/03 24.04 23.94 0.10 74.8303/05/04 24.41 24.30 0.11 74.4704/18/11 27.84 ----70.9507/19/12
08/10/12 27.26 26.28 0.98 72.3409/13/12 28.80 27.59 1.21 70.9902/04/1312/23/13 24.94 ----73.8508/25/14 24.51 ----74.2803/05/15 26.91 ----71.8811/16/15 27.59 26.01 1.58 71.2011/20/15 28.26 26.40 1.86 70.5311/23/15 27.50 26.01 1.49 72.5205/02/16 24.53 24.43 0.10 74.3405/06/16 29.45 ----69.3408/03/16 24.32 24.22 0.10 74.5504/03/17 29.49 26.92 2.57 71.43
05/09/18 27.10 26.30 0.80 72.3511/13/18
08/21/19 18.98 18.97 0.01 79.8204/20/20 22.70 ----76.0909/10/20 21.80 ----76.9906/07/21 21.55 ----77.24
10/04/21 22.79 ----76.00
05/17/22 22.54 ----76.25
10/18/22 22.92 ----75.87
03/29/23 22.16 ----76.63
10/06/23 21.81 -----21.81
RW-1 Not Measured98.79
Not Measured
Unable to Access.
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
04/20/2009/10/2006/07/21
05/17/22
10/18/22
08/21/19 21.48 ----77.11
04/20/20 21.77 ----76.8209/10/20 20.80 ----77.7906/07/21 20.59 ----78.0010/04/21 21.53 ----77.0605/17/22 22.37 ----76.22
10/18/22 22.51 ----76.08
03/29/23 21.35 ----77.24
10/06/23 21.17 ----77.42
RW-3 98.59
RW-2 98.74
Not Measured
Not Measured
Not MeasuredNot Measured
Well Inaccessible
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
03/30/01 27.20 27.09 0.11 71.5304/19/01 29.47 26.52 2.95 71.6109/18/01 28.18 26.27 1.91 72.0410/23/01 27.12 26.53 0.59 72.0101/15/02 31.00 26.58 4.42 71.3002/12/02 31.10 26.62 4.48 71.2407/02/02 29.73 27.35 2.38 70.8810/22/02 28.18 27.53 0.65 71.0002/03/03 26.90 26.87 0.03 71.7607/14/03 24.11 24.05 0.06 74.5808/06/03 24.22 23.51 0.71 75.0109/11/03 23.17 23.14 0.03 75.4910/21/03 23.29 23.04 0.25 75.5612/30/03 24.10 23.58 0.52 74.9703/05/04 24.20 24.10 0.10 74.5204/18/11 DRY DRY DRY DRY07/19/12 DRY DRY DRY DRY08/10/12 DRY DRY DRY DRY09/13/12 DRY DRY DRY DRY02/04/1312/23/13 24.76 24.69 0.07 73.9408/25/14 24.21 24.06 0.15 74.5503/05/15 26.40 26.32 0.08 72.2411/16/15 29.05 25.46 3.59 69.5911/20/15 27.65 ----70.9911/23/15 27.95 26.87 1.08 71.5805/02/16 25.40 24.41 0.99 74.0605/06/16 25.29 ----73.3508/03/1604/03/17 28.27 26.85 1.42 71.54
05/09/18 26.92 26.06 0.86 72.43
11/13/1808/21/19 22.60 22.34 0.26 76.2604/20/20 21.50 ----77.1409/10/20 21.34 ----77.3006/07/21 21.38 21.09 0.29 77.50
10/04/21 22.48 22.41 0.07 76.22
05/17/22 22.38 ----76.26
10/18/22 22.81 22.67 0.14 75.95
03/29/23 21.82 21.79 0.03 76.84
10/06/23 21.55 21.50 0.05 77.13
RW-4 98.64
Dry
Not Measured
Not Measured
WELL ID TOC
ELEVATION
DATE
WATER
LEVEL
MEASURED
DEPTH TO
GROUND
WATER
DEPTH TO
FREE
PRODUCT
FREE
PRODUCT
THICKNESS
GROUND
WATER
ELEVATION
Table 3
Summary of Groundwater Elevation Data
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Kerr's Hickory Ready Mixed Concrete, Inc.
03/30/01 23.02 23.00 0.02 73.5904/19/01 26.34 22.23 4.11 73.6509/18/01 27.06 22.40 4.66 73.3810/23/01 24.43 22.91 1.52 73.4201/15/02 29.67 22.90 6.77 72.5202/12/02 28.02 23.16 4.86 72.5907/02/02 26.43 23.88 2.55 72.2710/22/02 24.50 24.15 0.35 72.3802/03/03 23.60 ----72.9907/14/03 20.73 ----75.8608/06/03 20.80 20.34 0.46 76.1709/11/03 20.10 19.90 0.20 76.6610/21/03 20.12 19.85 0.27 76.6912/30/03 20.62 20.41 0.21 76.1403/05/04 21.06 20.76 0.30 75.7804/08/11 DRY DRY DRY DRY07/19/12
08/10/12 25.54 24.56 0.98 71.8609/13/12 25.29 24.24 1.05 72.1702/04/1312/23/13 22.44 21.41 1.03 75.0008/25/14 21.98 21.43 0.55 75.0603/05/15 23.21 22.95 0.26 73.6011/16/15 23.70 22.49 1.21 72.8911/20/15 24.04 ----72.5511/23/15 22.73 22.65 0.08 73.9305/02/16 20.62 0.61 0.01 75.9805/06/16 21.29 ----75.3008/03/16 20.68 ----75.9104/03/17 24.02 23.75 0.27 72.7905/09/18 23.10 22.82 0.28 73.72
11/13/18
08/21/19 18.98 18.97 0.01 77.6204/20/20 18.26 18.22 0.04 78.3609/10/20 18.03 ----78.5606/07/21 17.95 ----78.64
10/04/21 19.19 19.12 0.07 77.46
05/17/22 19.08 -----19.08
10/18/22 19.39 19.37 0.02 77.22
03/29/23 18.54 -----18.54
10/06/23 18.19 -----18.19
Notes:
Groundwater elevations adjusted for presence of free product using an assumed diesel relative density of 0.827.
TOC - Top of Casing
All values expressed in feet.
RW-5 96.59
Unable to Access.
Not Measured
Not Measured
BenzeneTolueneEthylbenzeneXylenesIPEMTBEn-Butylbenzenetert-ButylbenzeneIsopropylbenzene4-IsopropyltolueneNaphthaleneChloroethaneChloroformn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenesec-Butylbenzene1,1-Dichloroethanetert-Butyl AlcoholTetrachloroethyleneStyreneMethyl Isobutyl Ketone1-Methylnaphthalene2-MethylnaphthaleneAnthraceneFluoreneNaphthaleneBenzo (b)fluoranthenePhenanthrenePyreneAcenaphtheneBis(2-Ethylhexyl)phthalat1 600 600 500 70 20 70 70 70 25 6 3,000 70 70 400 400 70 6 10 0.7 70 100 1 30 2,000 300 6 0.05 200 200 80 3
5,000 260,000 80,000 50,000 70,000 20,000 5,900 14,750 30,500 11,700 6,000 NSE 70,000 26,100 28,500 24,100 8,800 6,000 10,000 700 70,000 100,000 1,000 12,000 2,000 845 6,000 0.75 550 200 1,950 135
2/4/2013
12/23/2013
8/26/2014 ND ND 4.7 2 ND 1.2 8 ND 5 8.1 47 ND ND 6 40 2.7 8.2 ND NA ND ND ND NA NA ND ND ND ND 160 67 ND 16
3/5/2015 NA ND ND 0.4j ND ND 1.4 ND 0.8 ND 5.6 ND ND 1.1 8.1 1.1 ND ND NA ND ND ND NA NA 4.2 ND ND ND 9.6 4.0j ND 11
11/24/2015 2.9 0.2 5.2 11.4 ND 6.7 4.3 ND 3.1 4.5 30 ND ND 3.3 21 3 5.1 ND NA ND ND ND NA ND ND ND ND ND 11 9.5 ND 5.2
8/4/2016 2.8 ND 2.5 4.5 1.1 14 1.9 ND 2.4 1.6 7.2 ND ND 3 2.8 ND 4 ND NA ND ND ND 45 34 ND ND 4.8J ND 20 ND ND 3.4J
11/14/2018 <0.50 <0.50 3.7 <1.5 <0.50 <0.50 1.6 <0.50 3.4 NA 13.4 <1.0 <0.50 3.6 <0.50 <0.50 4.4 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/22/2019 <0.50 <0.50 0.97 <1.5 <0.50 <0.50 <0.50 <0.50 1.2 NA <2.0 <1.0 <5.0 1.4 <0.50 <0.50 2.2 <0.50 <10.0 NA <0.50 NA 46.3 36.9 9.3 12.7 11.8 <0.050 18.9 3.4 9.6 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
2/4/2013 ND ND ND ND ND ND ND ND ND ND 0.26J 0.63 ND ND ND ND ND 0.57 8.4J ND ND ND ND ND ND ND ND ND ND ND ND ND
12/23/2013 ND 0.25J ND 0.63J ND ND ND ND ND ND ND ND ND ND 0.24J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 5.6J
8/26/2014 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND NA NA ND ND ND ND ND ND ND ND
3/5/2015 ND ND ND ND ND ND ND ND ND ND 1.5 ND ND ND ND ND ND ND NA ND ND ND NA NA ND ND ND ND ND ND ND ND
11/24/2015 ND ND ND ND ND 0.13 ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND NA ND ND ND ND ND ND ND ND ND
8/4/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND ND ND
11/14/2018 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/21/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <10.0 NA <0.50 NA <0.80 <0.80 0.19 <0.31 <1.5 <0.050 <0.20 <0.10 <0.50 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2021
10/18/2022
3/29/2023
10/6/2023
SM 6200 EPA 625 / 8270
CONTAMINANTS OF CONCERN/CONCENTRATION (µg/L)
TABLE 4
SUMMARY OF GROUNDWATER SAMPLING ANALYTICAL RESULTS
Kerr's Hickory Ready Mixed Concrete, Inc.
Incident No. 20025
ANALYTICAL METHOD
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Date
Collected
WELL
ID
2L Standard (µg/L)
GCL (µg/L)
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Sampled Due to 0.05' of Free-Phase Petroleum
Not Sampled Due to 0.03' of Free-Phase Petroleum
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
MW-2
MW-1
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
BenzeneTolueneEthylbenzeneXylenesIPEMTBEn-Butylbenzenetert-ButylbenzeneIsopropylbenzene4-IsopropyltolueneNaphthaleneChloroethaneChloroformn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenesec-Butylbenzene1,1-Dichloroethanetert-Butyl AlcoholTetrachloroethyleneStyreneMethyl Isobutyl Ketone1-Methylnaphthalene2-MethylnaphthaleneAnthraceneFluoreneNaphthaleneBenzo (b)fluoranthenePhenanthrenePyreneAcenaphtheneBis(2-Ethylhexyl)phthalat1 600 600 500 70 20 70 70 70 25 6 3,000 70 70 400 400 70 6 10 0.7 70 100 1 30 2,000 300 6 0.05 200 200 80 3
5,000 260,000 80,000 50,000 70,000 20,000 5,900 14,750 30,500 11,700 6,000 NSE 70,000 26,100 28,500 24,100 8,800 6,000 10,000 700 70,000 100,000 1,000 12,000 2,000 845 6,000 0.75 550 200 1,950 135
SM 6200 EPA 625 / 8270
CONTAMINANTS OF CONCERN/CONCENTRATION (µg/L)
TABLE 4
SUMMARY OF GROUNDWATER SAMPLING ANALYTICAL RESULTS
Kerr's Hickory Ready Mixed Concrete, Inc.
Incident No. 20025
ANALYTICAL METHOD
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Date
Collected
WELL
ID
2L Standard (µg/L)
GCL (µg/L)
2/4/2013
12/23/2013
8/26/2014 ND ND 1.9 4.5 ND ND ND 0.3 1.4 5.5 28 ND ND 1.4 29 12 2.2 ND NA ND ND ND NA NA 140 310 ND ND ND ND 140 ND
3/5/2015 ND ND 0.54 0.26 ND ND 5.9 0.42 2.6 ND 59 ND ND 2.1 2.5 1.1 ND ND NA ND ND ND NA NA 4.7J ND 7.6 ND 9.1 4.6J ND 16
11/24/2015
8/4/2016
11/13/2018
8/22/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <10.0 NA <0.50 NA <0.80 <0.80 <0.050 <0.31 <1.5 <0.050 <0.20 <0.10 <0.50 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
2/4/2013
12/23/2014
8/26/2014
3/5/2015 ND ND 11 163 ND ND 20 ND 10J ND 180 ND ND 12J 200 56 ND ND NA ND ND ND NA NA 81 ND 220 ND 280 110 ND 28
11/24/2015 3.4 2.1 12 122 ND 1.1 9 0.46 9.1 9.6 130 ND ND 5.6 140 38 9 ND NA ND ND ND NA 220 ND ND ND ND 130 37 ND ND
8/4/2016 4.2 0.51 15 170 ND ND ND ND 8.4 7.9 70 ND ND 5.4 89 31 7.8 ND NA ND ND ND 46 53 ND 5.2J 34 ND 6.5J ND ND ND
11/13/2018 1.4 <0.50 5.8 92.10 <0.50 <0.50 <0.50 <0.50 5.9 NA 47.2 <1.0 <0.50 <0.50 66.5 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/21/2019
4/20/2020
9/10/2020
6/7/2021 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 69.7 90.1 <20.8 <20.8 19.4 J <20.8 <20.8 13.2 J <20.8 NA
10/4/2021
5/17/2022 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 289 350 42.1 J 67.9 77.4 <62.5 100 46.0 J <62.5 NA
10/18/2022
3/29/2023
10/6/2023
Not Sampled Due to 1.76' of Free-Phase Petroleum
Not Sampled Due to the Presence of 0.17' of Free-Phase Petroleum
Not Sampled Due to 0.04' of Free-Phase Petroleum
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Sampled Due to 1.18' of Free-Phase Petroleum
Not Sampled Due to 0.05' of Free-Phase Petroleum
Unable to Access.
Not Sampled Due to the presence of 0.51' of Free-Phase Petroleum
Unable to Access.
Not Sampled Due to the presence of 0.21' of Free-Phase Petroleum
Unable to Access.
Not Sampled Due to 0.43' of Free-Phase Petroleum
Not Sampled Due to 0.05' of Free-Phase Petroleum
Not Requested for Sampling
Not Requested for Sampling
Not Sampled Due to the Presence of 0.16' of Free-Phase Petroleum
Not Sampled Due to the Presence of 0.03' of Free-Phase Petroleum
MW-4
Not Requested for Sampling
Not Sampled Due to the Presence of 0.04' of Free-Phase Petroleum
Not Requested for Sampling
Not Requested for SamplingMW-3
BenzeneTolueneEthylbenzeneXylenesIPEMTBEn-Butylbenzenetert-ButylbenzeneIsopropylbenzene4-IsopropyltolueneNaphthaleneChloroethaneChloroformn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenesec-Butylbenzene1,1-Dichloroethanetert-Butyl AlcoholTetrachloroethyleneStyreneMethyl Isobutyl Ketone1-Methylnaphthalene2-MethylnaphthaleneAnthraceneFluoreneNaphthaleneBenzo (b)fluoranthenePhenanthrenePyreneAcenaphtheneBis(2-Ethylhexyl)phthalat1 600 600 500 70 20 70 70 70 25 6 3,000 70 70 400 400 70 6 10 0.7 70 100 1 30 2,000 300 6 0.05 200 200 80 3
5,000 260,000 80,000 50,000 70,000 20,000 5,900 14,750 30,500 11,700 6,000 NSE 70,000 26,100 28,500 24,100 8,800 6,000 10,000 700 70,000 100,000 1,000 12,000 2,000 845 6,000 0.75 550 200 1,950 135
SM 6200 EPA 625 / 8270
CONTAMINANTS OF CONCERN/CONCENTRATION (µg/L)
TABLE 4
SUMMARY OF GROUNDWATER SAMPLING ANALYTICAL RESULTS
Kerr's Hickory Ready Mixed Concrete, Inc.
Incident No. 20025
ANALYTICAL METHOD
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Date
Collected
WELL
ID
2L Standard (µg/L)
GCL (µg/L)
2/4/2013 ND ND ND ND ND ND ND ND ND 0.69 0.68J ND ND ND 1.1 ND 0.56 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
12/23/2013 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
8/26/2014 ND ND ND ND ND ND ND ND ND ND ND ND ND 0.11j 0.53 ND 0.12 ND NA ND ND ND NA NA ND ND ND ND ND ND ND ND
3/5/2015 ND ND ND 0.15 ND ND 0.54 ND 0.17 ND 1.3 ND ND 0.54 ND 3.1 0.82 ND NA ND ND ND NA NA ND ND ND ND ND ND ND 5.5
11/24/2015 ND ND ND 0.35 ND ND 0.42 ND 0.17 ND ND ND ND ND 1.9 ND 0.9 ND NA ND ND ND NA ND ND ND ND ND ND ND ND ND
8/4/2016 ND ND ND ND ND ND ND ND ND ND 1.5 ND ND ND 0.89 ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND ND ND
11/14/2018 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/22/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <10.0 NA <0.50 NA <0.80 <0.80 <0.050 <0.31 <1.5 <0.050 <0.20 <0.10 <0.50 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
2/4/2013
12/23/2013 ND ND 7.40 44.00 ND ND 5.80 ND 16.00 7.10 110.00 ND ND 8.90 99.00 28.00 7.70 ND ND ND ND ND ND ND ND 21.00 98.00 ND 26.00 ND 12.00 5.8J
8/26/2014 ND ND 5 28.6 ND ND ND ND 14 7.2 120 ND ND 7.8 86 25 7.9 ND NA ND ND ND NA NA ND 16 75 ND 23 ND 8 ND
3/5/2015
11/24/2015
8/4/2016
11/14/2018 <0.50 <0.50 0.83 3.2 <0.50 <0.50 <0.50 <0.50 9.1 NA 51.5 <1.0 <0.50 2.5 43.2 17 <0.50 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/22/2019 <0.50 <0.50 1.1 1.7 <0.50 <0.50 <0.50 <0.50 7.7 NA 67.7 <1.0 <5.0 3.3 45.8 17.2 <0.50 <0.50 <10.0 NA <0.50 NA 97.1 122 5 13.4 48.1 <0.050 20 2.5 8.7 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
Not Requested for Sampling
Not Requested for Sampling
Unable to Access
Unable to Access.
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Unable to Access.
Not Requested for Sampling
Unable to Locate
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
MW-6
MW-5
BenzeneTolueneEthylbenzeneXylenesIPEMTBEn-Butylbenzenetert-ButylbenzeneIsopropylbenzene4-IsopropyltolueneNaphthaleneChloroethaneChloroformn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenesec-Butylbenzene1,1-Dichloroethanetert-Butyl AlcoholTetrachloroethyleneStyreneMethyl Isobutyl Ketone1-Methylnaphthalene2-MethylnaphthaleneAnthraceneFluoreneNaphthaleneBenzo (b)fluoranthenePhenanthrenePyreneAcenaphtheneBis(2-Ethylhexyl)phthalat1 600 600 500 70 20 70 70 70 25 6 3,000 70 70 400 400 70 6 10 0.7 70 100 1 30 2,000 300 6 0.05 200 200 80 3
5,000 260,000 80,000 50,000 70,000 20,000 5,900 14,750 30,500 11,700 6,000 NSE 70,000 26,100 28,500 24,100 8,800 6,000 10,000 700 70,000 100,000 1,000 12,000 2,000 845 6,000 0.75 550 200 1,950 135
SM 6200 EPA 625 / 8270
CONTAMINANTS OF CONCERN/CONCENTRATION (µg/L)
TABLE 4
SUMMARY OF GROUNDWATER SAMPLING ANALYTICAL RESULTS
Kerr's Hickory Ready Mixed Concrete, Inc.
Incident No. 20025
ANALYTICAL METHOD
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Date
Collected
WELL
ID
2L Standard (µg/L)
GCL (µg/L)
2/4/2013 ND ND ND ND ND ND ND ND ND ND 0.26J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
12/23/2013 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 6.2J
8/26/2014 ND ND ND 9.9 ND ND ND ND 4 ND 42 ND 0.56 ND 34 0.68 1.8 ND NA 0.78 ND ND NA NA ND ND ND ND ND ND ND 24
3/5/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND NA NA ND ND ND ND ND ND ND ND
11/24/2015 ND ND ND ND ND ND ND ND ND ND 2.3 ND ND ND ND ND ND ND NA ND ND ND NA ND ND ND ND ND ND ND ND ND
8/4/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND NA ND ND ND ND ND ND ND ND ND
11/14/2018 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/21/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <10.0 NA <0.50 NA <0.80 <0.80 <0.050 <0.31 <1.5 <0.050 <0.20 <0.10 <0.50 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
2/4/2013 ND ND ND 22.00 ND ND 2.70 0.30J 11.00 1.20 75.00 0.67 ND 1.20 67.00 10.00 6.80 ND ND 1.40 ND ND 62.00 51.00 ND 12.00 55.00 ND 7.5J ND 5.2J ND
12/23/2013 ND ND ND 17.40 ND ND 1.20 ND 2.60 2.50 28.00 ND ND 0.15J 29.00 1.40 1.10 ND ND ND 0.34J ND ND ND ND ND 22.00 ND ND ND ND 40.00
8/25/2014 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND NA NA ND ND ND ND ND ND ND ND
3/5/2015 ND ND ND 13.30 ND ND 1.30 0.11 4.50 ND 64.00 ND ND 0.45J 43.00 2.60 2.40 ND NA 0.86 ND ND NA NA ND ND 31.00 ND ND ND ND 18.00
11/24/2015 ND ND ND 3.75 ND ND 0.24 ND 3.60 ND 33.00 ND 0.30 0.14 21.00 0.53 0.77 ND NA 0.79 ND ND NA NA ND ND ND ND ND ND ND ND
8/4/2016 ND ND 5.50 78.00 ND ND 6.90 ND 14.00 6.30 93.00 ND ND 6.30 97.00 15.00 7.80 ND NA ND ND ND 51.00 55.00 ND ND 41.00 ND ND ND ND ND
11/13/2018 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 1.10 NA 12.20 <1.0 0.95 <0.50 2.70 <0.50 2.10 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/22/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <10.0 NA <0.50 NA <0.80 <0.80 <0.050 <0.31 <1.5 <0.050 <0.20 <0.10 <0.50 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
MW-8
MW-7
BenzeneTolueneEthylbenzeneXylenesIPEMTBEn-Butylbenzenetert-ButylbenzeneIsopropylbenzene4-IsopropyltolueneNaphthaleneChloroethaneChloroformn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenesec-Butylbenzene1,1-Dichloroethanetert-Butyl AlcoholTetrachloroethyleneStyreneMethyl Isobutyl Ketone1-Methylnaphthalene2-MethylnaphthaleneAnthraceneFluoreneNaphthaleneBenzo (b)fluoranthenePhenanthrenePyreneAcenaphtheneBis(2-Ethylhexyl)phthalat1 600 600 500 70 20 70 70 70 25 6 3,000 70 70 400 400 70 6 10 0.7 70 100 1 30 2,000 300 6 0.05 200 200 80 3
5,000 260,000 80,000 50,000 70,000 20,000 5,900 14,750 30,500 11,700 6,000 NSE 70,000 26,100 28,500 24,100 8,800 6,000 10,000 700 70,000 100,000 1,000 12,000 2,000 845 6,000 0.75 550 200 1,950 135
SM 6200 EPA 625 / 8270
CONTAMINANTS OF CONCERN/CONCENTRATION (µg/L)
TABLE 4
SUMMARY OF GROUNDWATER SAMPLING ANALYTICAL RESULTS
Kerr's Hickory Ready Mixed Concrete, Inc.
Incident No. 20025
ANALYTICAL METHOD
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Date
Collected
WELL
ID
2L Standard (µg/L)
GCL (µg/L)
2/4/2013 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
12/23/2013 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 3.2J ND ND ND 4.3J
8/26/2014 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND NA NA ND ND ND ND ND ND ND ND
3/5/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND NA NA ND ND ND ND ND ND ND 5.4
11/24/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND NA ND ND ND ND ND ND ND ND ND
8/4/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND ND ND
11/14/2018 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/21/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <10.0 NA <0.50 NA <0.80 <0.80 <0.050 <0.31 <1.5 <0.050 <0.20 <0.10 <0.50 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
2/4/2013
12/23/2013
8/25/2014
3/5/2015
11/24/2015
8/4/2016
11/13/2018
8/22/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <10.0 NA <0.50 NA <0.80 <0.80 <0.050 <0.31 <1.5 <0.050 <0.20 <0.10 <0.50 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
Not Requested for Sampling
Unable to Locate
Unable to Locate
Unable to Locate
Unable to Locate
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Unable to Locate
Unable to Locate
Unable to Locate
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
MW-9
MW-10
BenzeneTolueneEthylbenzeneXylenesIPEMTBEn-Butylbenzenetert-ButylbenzeneIsopropylbenzene4-IsopropyltolueneNaphthaleneChloroethaneChloroformn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenesec-Butylbenzene1,1-Dichloroethanetert-Butyl AlcoholTetrachloroethyleneStyreneMethyl Isobutyl Ketone1-Methylnaphthalene2-MethylnaphthaleneAnthraceneFluoreneNaphthaleneBenzo (b)fluoranthenePhenanthrenePyreneAcenaphtheneBis(2-Ethylhexyl)phthalat1 600 600 500 70 20 70 70 70 25 6 3,000 70 70 400 400 70 6 10 0.7 70 100 1 30 2,000 300 6 0.05 200 200 80 3
5,000 260,000 80,000 50,000 70,000 20,000 5,900 14,750 30,500 11,700 6,000 NSE 70,000 26,100 28,500 24,100 8,800 6,000 10,000 700 70,000 100,000 1,000 12,000 2,000 845 6,000 0.75 550 200 1,950 135
SM 6200 EPA 625 / 8270
CONTAMINANTS OF CONCERN/CONCENTRATION (µg/L)
TABLE 4
SUMMARY OF GROUNDWATER SAMPLING ANALYTICAL RESULTS
Kerr's Hickory Ready Mixed Concrete, Inc.
Incident No. 20025
ANALYTICAL METHOD
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Date
Collected
WELL
ID
2L Standard (µg/L)
GCL (µg/L)
2/4/2013 ND ND ND 6.50 ND 0.39J 0.80 ND 1.70 ND 8.40 ND ND ND 17.00 0.27J 2.90 ND ND ND ND ND 21.00 17.00 ND 3.3J 2.6J ND ND ND ND ND
12/23/2013 ND ND ND 1.41J ND ND 0.40J ND 0.24J 1.40 ND ND ND ND 3.10 0.12J 0.41J ND ND ND ND ND ND ND ND ND ND ND ND ND ND 6.3J
8/26/2014 ND ND ND ND ND ND ND ND 0.23J ND ND ND ND ND 2 ND 0.4 ND NA ND ND ND NA NA ND ND ND ND ND ND ND ND
3/5/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND NA NA ND ND ND ND ND ND ND 11
11/24/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND NA ND ND ND ND ND ND ND ND ND
8/4/2016 ND ND ND 1.3J ND 0.54J ND ND 1.2 ND 8.3 ND ND ND 7.7 ND 0.94 ND NA ND ND ND ND ND ND ND ND ND ND ND ND ND
11/13/2018 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/22/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <10.0 NA <0.50 NA <0.80 <0.80 <0.050 <0.31 <1.5 <0.050 <0.20 <0.10 <0.50 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
2/4/2013 0.90 ND ND 58.00 ND ND 3.10 0.26J 7.60 ND 58.00 1.10 ND ND 63.00 0.95 6.80 ND 1.6J ND ND ND 54.00 71.00 ND 8.3J 38.00 ND 9.2J ND ND ND
12/23/2013 ND ND ND 2.41 ND 0.38J ND ND 0.32J 0.67 7.50 ND 1.70 ND 2.50 ND 0.24J ND ND ND ND ND ND ND ND ND ND ND ND ND ND 5.3J
8/25/2014 ND ND ND ND ND ND ND ND 0.23J ND ND ND 2.8 ND ND ND ND ND NA ND ND ND NA NA ND ND ND ND ND ND ND ND
3/5/2015 0.5 ND ND 5.9 ND 0.93 0.19 ND 0.86 ND 10 ND ND ND 6.7 ND ND ND NA ND ND ND NA NA ND ND ND ND ND ND ND ND
11/24/2015 0.87 ND ND 14.5 ND 0.41 0.63 0.14 3.5 ND 45 ND 0.74 ND 36 0.19 2 ND NA ND ND ND NA NA ND ND 3.5 ND ND ND ND ND
8/4/2016 ND ND ND ND ND ND ND ND ND ND ND ND 2.2 ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND ND ND
11/13/2018 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA 2.7 0.53 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/22/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <10.0 NA <0.50 NA <0.80 <0.80 <0.050 <0.31 <1.5 <0.050 <0.20 <0.10 <0.50 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
MW-12
MW-11
BenzeneTolueneEthylbenzeneXylenesIPEMTBEn-Butylbenzenetert-ButylbenzeneIsopropylbenzene4-IsopropyltolueneNaphthaleneChloroethaneChloroformn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenesec-Butylbenzene1,1-Dichloroethanetert-Butyl AlcoholTetrachloroethyleneStyreneMethyl Isobutyl Ketone1-Methylnaphthalene2-MethylnaphthaleneAnthraceneFluoreneNaphthaleneBenzo (b)fluoranthenePhenanthrenePyreneAcenaphtheneBis(2-Ethylhexyl)phthalat1 600 600 500 70 20 70 70 70 25 6 3,000 70 70 400 400 70 6 10 0.7 70 100 1 30 2,000 300 6 0.05 200 200 80 3
5,000 260,000 80,000 50,000 70,000 20,000 5,900 14,750 30,500 11,700 6,000 NSE 70,000 26,100 28,500 24,100 8,800 6,000 10,000 700 70,000 100,000 1,000 12,000 2,000 845 6,000 0.75 550 200 1,950 135
SM 6200 EPA 625 / 8270
CONTAMINANTS OF CONCERN/CONCENTRATION (µg/L)
TABLE 4
SUMMARY OF GROUNDWATER SAMPLING ANALYTICAL RESULTS
Kerr's Hickory Ready Mixed Concrete, Inc.
Incident No. 20025
ANALYTICAL METHOD
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Date
Collected
WELL
ID
2L Standard (µg/L)
GCL (µg/L)
2/4/2013
12/23/2013 0.22J 0.12J 2.20 110.00 ND ND 2.90 0.23J 8.50 1.80 83.00 ND ND 2.20 86.00 23.00 1.70 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
8/25/2014 ND ND 0.64 83 ND ND ND ND 5.6 ND 85 ND 0.92 0.44 63 11 2.1 ND NA ND ND ND NA NA ND 6.9 8 ND 9.5 ND 4.8J 16
3/5/2015 0.11J ND ND 71 ND ND 0.86 0.3 5.1 ND 94 ND ND ND 99 13 1.4 ND NA 0.40J ND ND NA NA ND 6.7 ND ND 7.7 ND 3.9J 10
11/24/2015 ND ND ND 19.2 ND ND 0.66 0.16 4.8 0.22 47 ND 0.91 ND 42 2 1.6 ND NA ND ND ND NA NA ND ND ND ND ND ND ND ND
8/4/2016
11/13/2018 <0.50 <0.50 <0.50 15.50 <0.50 <0.50 3 <0.50 5.4 NA 42.6 <1.0 19.9 <0.50 31.3 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/22/2019 <0.50 <0.50 <0.50 14.1 <0.50 <0.50 <0.50 <0.50 1.3 NA 17.2 <1.0 29.4 <0.50 11.2 1.5 <0.50 <0.50 <10.0 NA <0.50 NA 21.9 20.5 <0.25 1.6 16.6 <0.25 2.2 2 <2.5 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
12/23/2013 ND ND ND ND ND ND ND ND ND 0.34J ND ND 2.6 ND 1.5 0.44J 0.19J ND ND ND ND ND ND ND ND ND ND ND ND ND ND 6.7J
8/25/2014 ND ND 0.11 5.3 ND ND ND 0.16j 2 1.7 14 ND 5.4 0.17j 26 4.2 2.3 ND NA 0.37j ND ND NA NA ND ND ND ND ND ND ND ND
3/19/2015 ND ND ND 0.32 ND ND 0.47J ND 0.21J ND 5.5 ND 5.3 ND 0.62 ND 0.84 ND NA 0.81 ND ND NA NA ND 4.6 ND ND ND ND ND ND
11/24/2015 ND ND ND ND ND ND 1.4 0.22 1.3 ND 14 ND 2.3 ND 18 0.73 2.5 ND NA ND ND ND NA ND ND ND ND ND ND ND ND 5.1
8/4/2016 ND ND ND 3.7 ND ND ND ND 1.6 0.85 5.5 ND 82 1.1 15 5.4 ND ND NA 0.63 ND ND 6.6J 4.9J ND ND ND ND ND ND ND ND
11/13/2018 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 17.3 <0.50 1.6 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/22/2019 <0.50 <0.50 <0.50 7.8 <0.50 <0.50 2.6 <0.50 2.9 NA 44.9 <1.0 <5.0 <0.50 24.2 <0.50 <0.50 <0.50 <10.0 NA <0.50 NA 76.7 103 <0.050 5.2 44.6 <0.050 4 0.24 3.6 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Sampled Due to 0.08' of Free-Phase Petroleum
Not Sampled Due to 0.04' of Free-Phase Petroleum
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
MW-15
MW-13
BenzeneTolueneEthylbenzeneXylenesIPEMTBEn-Butylbenzenetert-ButylbenzeneIsopropylbenzene4-IsopropyltolueneNaphthaleneChloroethaneChloroformn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenesec-Butylbenzene1,1-Dichloroethanetert-Butyl AlcoholTetrachloroethyleneStyreneMethyl Isobutyl Ketone1-Methylnaphthalene2-MethylnaphthaleneAnthraceneFluoreneNaphthaleneBenzo (b)fluoranthenePhenanthrenePyreneAcenaphtheneBis(2-Ethylhexyl)phthalat1 600 600 500 70 20 70 70 70 25 6 3,000 70 70 400 400 70 6 10 0.7 70 100 1 30 2,000 300 6 0.05 200 200 80 3
5,000 260,000 80,000 50,000 70,000 20,000 5,900 14,750 30,500 11,700 6,000 NSE 70,000 26,100 28,500 24,100 8,800 6,000 10,000 700 70,000 100,000 1,000 12,000 2,000 845 6,000 0.75 550 200 1,950 135
SM 6200 EPA 625 / 8270
CONTAMINANTS OF CONCERN/CONCENTRATION (µg/L)
TABLE 4
SUMMARY OF GROUNDWATER SAMPLING ANALYTICAL RESULTS
Kerr's Hickory Ready Mixed Concrete, Inc.
Incident No. 20025
ANALYTICAL METHOD
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Date
Collected
WELL
ID
2L Standard (µg/L)
GCL (µg/L)
12/23/2013 0.18J 0.16J 1.60 65.00 ND ND 10.00 0.33J 12.00 6.70 61.00 ND ND 1.80 110.00 31.00 7.00 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
8/25/2014 0.28 ND 3.6 80 ND ND ND 0.32 12 5.4 91 ND 0.66j 2.5 99 25 7.2 ND NA ND ND ND NA NA ND 6.8 48 ND 5 ND ND ND
3/19/2015 ND 0.13J ND 4 ND ND 5.5 0.14J 3.5 ND 24 ND 0.99 ND 43 10 4.3 ND NA ND ND ND NA NA ND 5.8 22 ND 4.6J ND ND ND
11/24/2015 ND ND 0.44 23.6 ND ND 4.8 0.27 9.7 5 65 0.5 ND 0.59 94 24 7 ND NA ND ND ND NA 15 ND 5.4 ND ND 5.1 ND ND ND
8/4/2016 ND ND ND 0.68J ND ND ND ND 0.52 ND 4.9 ND 6.5 ND 2 ND 0.8 ND NA 3.2 ND ND 4.6J ND ND ND ND ND ND ND ND 21
11/13/2018 <0.50 <0.50 1.6 43.80 <0.50 <0.50 4.8 <0.50 9.2 NA 53.4 <1.0 <0.50 <0.50 76.5 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/22/2019 <0.50 <0.50 10 70.2 <0.50 <0.50 <0.50 <0.50 8.4 NA 82.4 <1.0 <5.0 4 60.5 9.7 <0.50 <0.50 <10.0 NA <0.50 NA 111 126 1.5 5 84.9 <0.50 6 <0.10 <5.0 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
12/23/2013 ND ND ND ND ND ND ND ND ND 0.52 110 ND ND ND 0.65 0.25 J ND ND ND ND ND ND ND ND 18.0 48.0 94.0 3.1J 64.0 6.30 59.0 6.9J
8/26/2014 ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.20 J ND ND 0.20 J NA ND ND ND NA NA ND ND ND ND ND ND ND ND
3/19/2015 0.15 ND ND ND ND 0.20 J ND ND ND ND ND ND 0.21 J ND ND ND ND 0.44 J NA ND ND ND NA NA ND ND ND ND ND ND ND ND
11/24/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND NA ND ND ND ND ND ND ND ND ND
8/4/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND ND ND
11/14/2018 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/21/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 63.4 NA <0.50 NA <0.80 <0.80 0.31 <0.31 <1.5 <0.050 <0.20 <0.10 <0.50 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
MW-17
MW-16
BenzeneTolueneEthylbenzeneXylenesIPEMTBEn-Butylbenzenetert-ButylbenzeneIsopropylbenzene4-IsopropyltolueneNaphthaleneChloroethaneChloroformn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenesec-Butylbenzene1,1-Dichloroethanetert-Butyl AlcoholTetrachloroethyleneStyreneMethyl Isobutyl Ketone1-Methylnaphthalene2-MethylnaphthaleneAnthraceneFluoreneNaphthaleneBenzo (b)fluoranthenePhenanthrenePyreneAcenaphtheneBis(2-Ethylhexyl)phthalat1 600 600 500 70 20 70 70 70 25 6 3,000 70 70 400 400 70 6 10 0.7 70 100 1 30 2,000 300 6 0.05 200 200 80 3
5,000 260,000 80,000 50,000 70,000 20,000 5,900 14,750 30,500 11,700 6,000 NSE 70,000 26,100 28,500 24,100 8,800 6,000 10,000 700 70,000 100,000 1,000 12,000 2,000 845 6,000 0.75 550 200 1,950 135
SM 6200 EPA 625 / 8270
CONTAMINANTS OF CONCERN/CONCENTRATION (µg/L)
TABLE 4
SUMMARY OF GROUNDWATER SAMPLING ANALYTICAL RESULTS
Kerr's Hickory Ready Mixed Concrete, Inc.
Incident No. 20025
ANALYTICAL METHOD
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Date
Collected
WELL
ID
2L Standard (µg/L)
GCL (µg/L)
5/9/2018 ND ND ND ND ND ND ND ND ND ND 6 ND 4 ND ND ND 0.52 ND NA ND ND ND ND ND ND ND ND ND ND ND ND ND
11/13/2018 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA 7 <1.0 0.92 <0.50 <0.50 <0.50 0.82 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/22/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA 6.3 <1.0 <5.0 <0.50 <0.50 <0.50 0.79 <0.50 <10.0 NA <0.50 NA 13.2 <0.80 <0.050 0.83 5.9 <0.050 2 0.13 0.97 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
5/9/2018 ND ND ND 3 ND ND ND ND 5.6 ND 89.5 ND 3.3 ND 6.2 ND 2.5 ND NA ND ND ND ND 26.7 ND ND 22 ND ND ND ND ND
11/13/2018 <0.50 <0.50 <0.50 4.80 <0.50 <0.50 <0.50 <0.50 7.7 NA 52.3 <1.0 9.6 <0.50 23.3 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/22/2019 <0.50 <0.50 <0.50 2.5 <0.50 <0.50 <0.50 <0.50 6.7 NA 60.1 <1.0 6.1 <0.50 18.3 <0.50 5.4 <0.50 <10.0 NA <0.50 NA 70.4 31.6 <0.050 3 56.3 <0.050 5.9 0.11 2.1 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
5/9/2018 ND ND ND ND ND ND ND ND 0.63 ND ND ND ND ND 9.6 ND ND ND NA 0.68 ND ND ND 11.6 ND ND ND ND ND ND ND ND
11/14/2018 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <0.50 <0.50 0.64 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA NA NA NA NA NA NA NA
8/21/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <10.0 NA <0.50 NA <0.80 <0.80 0.16 <0.31 <1.5 <0.050 <0.20 <0.10 <0.50 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
MW-20
MW-19
MW-18
BenzeneTolueneEthylbenzeneXylenesIPEMTBEn-Butylbenzenetert-ButylbenzeneIsopropylbenzene4-IsopropyltolueneNaphthaleneChloroethaneChloroformn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenesec-Butylbenzene1,1-Dichloroethanetert-Butyl AlcoholTetrachloroethyleneStyreneMethyl Isobutyl Ketone1-Methylnaphthalene2-MethylnaphthaleneAnthraceneFluoreneNaphthaleneBenzo (b)fluoranthenePhenanthrenePyreneAcenaphtheneBis(2-Ethylhexyl)phthalat1 600 600 500 70 20 70 70 70 25 6 3,000 70 70 400 400 70 6 10 0.7 70 100 1 30 2,000 300 6 0.05 200 200 80 3
5,000 260,000 80,000 50,000 70,000 20,000 5,900 14,750 30,500 11,700 6,000 NSE 70,000 26,100 28,500 24,100 8,800 6,000 10,000 700 70,000 100,000 1,000 12,000 2,000 845 6,000 0.75 550 200 1,950 135
SM 6200 EPA 625 / 8270
CONTAMINANTS OF CONCERN/CONCENTRATION (µg/L)
TABLE 4
SUMMARY OF GROUNDWATER SAMPLING ANALYTICAL RESULTS
Kerr's Hickory Ready Mixed Concrete, Inc.
Incident No. 20025
ANALYTICAL METHOD
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Date
Collected
WELL
ID
2L Standard (µg/L)
GCL (µg/L)
2/4/2013 ND ND ND ND ND ND ND ND ND 0.85 2.10 ND ND ND 0.66 ND 0.50 ND ND ND ND 0.57J ND ND ND ND ND ND ND ND ND 110.00
12/23/2013 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
8/25/2014
3/5/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND NA NA ND ND ND ND ND ND ND 28
11/24/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND NA ND ND ND ND ND ND ND ND ND
8/4/2016
11/13/2018
8/22/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 0.65 NA <2.0 <1.0 <5.0 0.71 2.6 1.8 0.79 <0.50 <10.0 NA <0.50 NA 11.4 1.7 1.9 3.1 <1.5 <0.050 3.5 1 2 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
4/20/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 20.4 11.5 1.8 4.3 8.6 <0.050 3.4 0.95 2.6 NA
9/10/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 23.0 J 15.6 J <25.0 <25.0 10.1 J <25.0 <25.0 <25.0 <25.0 NA
6/7/2021 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 18 14.4 <5.0 <5.0 9.2 <5.0 6.5 2.3 J <5.0 NA
10/4/2021 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 68 37 12 21 14 <8.0 23 <8.0 <8.0 NA
5/17/2022 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 40.4 16.2 <6.2 9.3 9.1 <6.2 12.6 4.6 J <6.2 NA
10/18/2022 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 48.0 19.4 <0.382 9.92 15.4 0.365 J 12.8 2.84 5.35 NA
3/29/2023 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 60.1 34.1 <9.9 <9.9 29.3 <9.9 <9.9 <9.9 <9.9 NA
10/6/2023 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 69.0 19.7 2.10 5.13 18.2 0.109 J 7.23 0.741 2.21 NA
4/20/2020
9/10/2020
6/7/2021
10/4/2021
5/17/2022
10/18/2022
3/29/2023
10/6/2023
8/22/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 NA <2.0 <1.0 <5.0 <0.50 0.88 <0.50 <0.50 <0.50 <10.0 NA <0.50 NA 2.4 2.3 1.5 <0.31 <1.5 <0.050 1.5 1.1 0.7 NA
4/20/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 2.0 2.0 0.3 0.96 0.36 J <0.50 0.89 0.17 0.56 NA
9/10/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 NA
6/7/2021 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 2.7 J 2.1 J <4.5 <4.5 <4.5 <4.5 <4.5 <4.5 <4.5 NA
10/4/2021 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 25 16 4.6 J 9.0 <8.0 <8.0 15 4.4 J <8.0 NA
5/17/2022 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 2.6 J <6.2 <6.2 <6.2 <6.2 <6.2 <6.2 2.8 J <6.2 NA
10/18/2022 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.658 0.195 J <0.389 <0.389 <0.389 0.263 J 0.339 J 0.236 J <0.389 NA
3/29/2023 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <9.8 <9.8 <9.8 <9.8 <9.8 <9.8 <9.8 <9.8 <9.8 NA
10/6/2023 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.472 <0.199 0.0658 J 0.130 J <0.199 <0.199 0.0890 J0.0745 J <0.199 NA
Not Requested for Sampling
Not Requested for Sampling
Unable to Access.
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Unable to Access.
Unable to Access.
Unable to Access.
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
Not Requested for Sampling
RW-1
RW-3
MW-1D /
VEW-01
RW-2
BenzeneTolueneEthylbenzeneXylenesIPEMTBEn-Butylbenzenetert-ButylbenzeneIsopropylbenzene4-IsopropyltolueneNaphthaleneChloroethaneChloroformn-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenesec-Butylbenzene1,1-Dichloroethanetert-Butyl AlcoholTetrachloroethyleneStyreneMethyl Isobutyl Ketone1-Methylnaphthalene2-MethylnaphthaleneAnthraceneFluoreneNaphthaleneBenzo (b)fluoranthenePhenanthrenePyreneAcenaphtheneBis(2-Ethylhexyl)phthalat1 600 600 500 70 20 70 70 70 25 6 3,000 70 70 400 400 70 6 10 0.7 70 100 1 30 2,000 300 6 0.05 200 200 80 3
5,000 260,000 80,000 50,000 70,000 20,000 5,900 14,750 30,500 11,700 6,000 NSE 70,000 26,100 28,500 24,100 8,800 6,000 10,000 700 70,000 100,000 1,000 12,000 2,000 845 6,000 0.75 550 200 1,950 135
SM 6200 EPA 625 / 8270
CONTAMINANTS OF CONCERN/CONCENTRATION (µg/L)
TABLE 4
SUMMARY OF GROUNDWATER SAMPLING ANALYTICAL RESULTS
Kerr's Hickory Ready Mixed Concrete, Inc.
Incident No. 20025
ANALYTICAL METHOD
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Date
Collected
WELL
ID
2L Standard (µg/L)
GCL (µg/L)
4/20/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 155 161 <5.0 48.8 53.2 0.18 J 67.2 17.8 <5.0 NA
9/10/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 64.1 79.2 <25.0 21.0 J 32.5 <25.0 <25.0 7.6 J <25.0 NA
6/7/2021
10/4/2021
5/17/2022 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 324 391 38.0 J 124 94.5 <62.5 160 63.3 <62.5 NA
10/18/2022
3/29/2023
10/6/2023
4/20/2020
9/10/2020 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 20.7 23.1 <5.0 5.3 13.4 <5.0 <5.0 2.2 J <5.0 NA
6/7/2021 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 65.0 85.9 <25.0 35.9 20.6 J <25.0 51.0 16.7 J <25.0 NA
10/4/2021
5/17/2022 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <31.2 <31.2 <31.2 <31.2 <31.2 <31.2 <31.2 <31.2 <31.2 NA
10/18/2022
3/29/2023 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 374 415 <10.0 116 130 <10.0 184 63.2 68.0 NA
10/6/2023 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 12.1 7.13 9.12 4.14 9.65 0.0660 J 7.64 4.17 2.38 NA
Note:
ND - Not Detected NSE - No Standard Established
NA - Not Analyzed
NE - Not EvaluatedJ - Estimated Concentration
Bold - Concentration above laboratory reporting limit.Bold Red - Concentration exceeds 2L Standard (must be reproduced in color).
Shaded - Concentration exceeds GCL.
2L Standard & GCL per 10/8/2020 Revision
RW-5
Not Sampled Due to the presence of 0.07' of Free-Phase Petroleum
Not Sampled Due to the presence of 0.07' of Free-Phase Petroleum
Not Sampled Due to the presence of 0.29' of Free-Phase Petroleum
Not Sampled Due to the presence of 0.02' of Free-Phase Petroleum
Not Sampled Due to the presence of 0.04' of Free-Phase Petroleum
Not Sampled Due to the Presence of 0.03' of Free-Phase Petroleum
Not Sampled Due to the Presence of 0.05' of Free-Phase Petroleum
RW-4
Not Sampled Due to the presence of 0.14' of Free-Phase Petroleum
MW-1
MW-3
MW-4
MW-1
MW-3
MW-4
MW-1
MW-3
MW-4
MW-1
MW-3
MW-4
RW-1
RW-2
RW-3
RW-4
RW-5
RW-1
RW-2
RW-3
RW-4
RW-5
RW-1
RW-2
RW-3
RW-4
RW-5
RW-1
RW-2
RW-3
RW-4
RW-5
RW-1
RW-2
RW-3
RW-4
RW-5
RW-1
RW-2
RW-3
RW-4
RW-5
MW-8 3/7/2003 NA NA 2.12 NA 3.0 NA N/A N/A Hand Bailing
MW-8 3/31/2003 NA NA 0.56 NA 0.25 NA N/A N/A Hand Bailing
MW-8 5/16/2003 NA NA 0.41 NA 0.25 NA N/A N/A Hand Bailing
MW-4 3/5/2004 NA NA 2.45 NA 1.0 NA N/A N/A Hand Bailing
Post Recovery
Product
Thickness (ft)
NA
NA
NA
NA
NA
NA
NA
Well Date
Depth to Free
Product (ft,
TOC)*
Depth to
Groundwater
(ft, TOC)*
Free
Product
Thickness
(ft)*
2/12/2001
NA NA
NA NA AFVR
N/A N/A Active
Skimming
1/15/2002-
10/21/2002
AFVR
Liquid
Product
Recovered
(gallons)
Water
Recovered
(gallons)
Stack Emissions Recovery
Method (lbs) (equivalent
gallons)
AFVR
Active
Skimming
10/5/2001-
12/11/2001 NA NA NA N/A N/A48.5 749.75
716
13.0 753
NA NA NA
NA NA NA N/A N/A AFVR
N/A N/A
12/11/2001-
1/15/2002 NA NA NA 97.0 749.75
N/ANA
N/A N/A6/9/2000
9/18/2000
12/4/2000
NA
3.0 110
1,14980.0
7.0
N/A N/A
NA
Active
SkimmingNANA86.0 310
10/21/2002-
2/3/2003 NA NA NA 13.0 13 N/A N/ANA
N/A
Active
Skimming
Active
SkimmingNANA11.0 28 N/A N/A
8/6/2003-
3/5/2004 NA NA NA 2.0 2 N/A N/A Active
Skimming
NA
NA
2/3/2003-
8/6/2003 NA
TABLE 5
SUMMARY OF FREE PRODUCT RECOVERY
Kerr's Hickory Ready Mixed Concrete, Inc.
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
Post Recovery
Product
Thickness (ft)
Well Date
Depth to Free
Product (ft,
TOC)*
Depth to
Groundwater
(ft, TOC)*
Free
Product
Thickness
(ft)*
Liquid
Product
Recovered
(gallons)
Water
Recovered
(gallons)
Stack Emissions Recovery
Method (lbs) (equivalent
gallons)
TABLE 5
SUMMARY OF FREE PRODUCT RECOVERY
Kerr's Hickory Ready Mixed Concrete, Inc.
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
MW-4 26.83 27.81 0.98
MW-8 23.87 24.81 0.94
MW-13 25.85 25.91 0.06
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-4 2/14/2011-
3/29/2011 NA NA NA NA 14.0 NA N/A N/A Hand Bailing
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
6/3/2010
NA NA NA
Hand Bailing
2/22/2011 NA NA NA Sorbent
Hand Bailing
NA NA 0.27
6/12/2009 20.0 NA N/A N/A
6/17/2010 NA NA NA
6/24/2010 NA NA
NA N/A
6/3/2010-
6/10/2010 0.13 18.00 N/A N/A
NA
NA NA N/A
NA NA N/A N/A
N/A Sorbent
Sorbent
Sorbent
Sorbent
NA N/A N/A
NA N/A N/A
NA N/A N/A Sorbent
NA
NA N/A N/A Sorbent
N/A N/A
NA N/A N/A
6/10/2010 NA NA NA 0.27
0.27
NA N/A
NA 0.27
N/A
7/15/2010 NA NA NA
NA NA
0.27
7/8/2010 NA NA NA 0.27
NA
NA
NA
NA
SorbentNA
N/A
NA NA N/A N/A
NA
Sorbent
Sorbent
SorbentNA
0.27 N/A N/A
NA
3/18/2011 NA
7/22/2010 NA NA NA
NA NA
3/25/2011 NA
2/28/2011 NA NA NA
3/11/2011
NA NA
Sorbent
Post Recovery
Product
Thickness (ft)
Well Date
Depth to Free
Product (ft,
TOC)*
Depth to
Groundwater
(ft, TOC)*
Free
Product
Thickness
(ft)*
Liquid
Product
Recovered
(gallons)
Water
Recovered
(gallons)
Stack Emissions Recovery
Method (lbs) (equivalent
gallons)
TABLE 5
SUMMARY OF FREE PRODUCT RECOVERY
Kerr's Hickory Ready Mixed Concrete, Inc.
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
MW-4
MW-8
MW-13
MW-4 7/26/2011 NA NA NA NA 2.5 NA NA NA Hand Bailing
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-4
MW-8
MW-13
MW-1
MW-4
RW-4
RW-5
MW-1
MW-4
RW-4
RW-5
RW-1
RW-4
RW-5
MW-4
RW-1
RW-4
RW-5
RW-1 ----22.88 ----
RW-4 22.74 22.82 0.08
RW-5 19.43 19.48 0.05
MW-4 19.76 20.47 0.71
MW-4 19.18 19.78 0.60 0.00
RW-5 18.56 18.57 0.01 0.00
MW-4 ----18.44 ----0.00
RW-5 ----17.75 ----0.00 4.5727.464,6410.00 MMPE
NA
NA
NANANANA
NA NA NA
NA
NA MMPE
MMPE
3,421 24.97 4.06 MMPE
NA
NA
NA
NA
NA NA NA
NA NA NA
NA
NA
MMPE
3/16/2020-
3/20/2020 141.83 23.54 MMPE12.0 4,972
NA
NA NA N/A N/A Sorbent3/29/2011 NA NA NA
Sorbent
8/2/2011 NA NA N/A N/A Sorbent
NA NA NA
NA N/A N/A Sorbent
NA NA
NA NA NA
NA
8/11/2011 NA
9/14/2011 NA NA N/A N/A Sorbent
9/8/2011 NA NA N/A N/A Sorbent
8/25/2011 NA NA N/A N/A Sorbent
8/18/2011 NA NA N/A N/A
11/16/2015-
11/20/2015 69 4,353 21.24 2.45
4/3/2017-
4/7/2017 94 2,080 15.65 2.54
8/3/2020-
8/7/2020 18.0 4,930 36.09 5.87
6/1/2021-
6/4/2021
NA NA NA
NA
5/2/2016-
5/6/2016 46
NA NA
11.43 1.86133,708
NA
NA NA
MMPE
6/18/2018-
6/22/2018
Post Recovery
Product
Thickness (ft)
Well Date
Depth to Free
Product (ft,
TOC)*
Depth to
Groundwater
(ft, TOC)*
Free
Product
Thickness
(ft)*
Liquid
Product
Recovered
(gallons)
Water
Recovered
(gallons)
Stack Emissions Recovery
Method (lbs) (equivalent
gallons)
TABLE 5
SUMMARY OF FREE PRODUCT RECOVERY
Kerr's Hickory Ready Mixed Concrete, Inc.
1126 1st Avenue Southwest
Hickory, Catawba County, NC
Incident No. 20025
MW-4 19.31 19.45 0.14 0.00
RW-4 21.83 22.36 0.53 0.00
RW-5 ----18.65 ----0.00
MW-4 ----19.75 ----0.00
RW-4 22.58 22.67 0.09 0.00
RW-5 19.28 19.34 0.06 0.00
MW-4 ----19.39 ----0.00
RW-4 ----22.22 ----0.00
RW-5 ----18.90 -----0.00
MW-4 19.25 19.35 0.10 0.00
RW-4 21.91 22.02 0.11 0.00
RW-5 18.70 18.72 0.02 0.00
MW-4 18.25 18.29 0.04 0.00
RW-4 20.95 20.96 0.01 0.00
RW-5 17.65 17.69 0.04 0.00
677.5 56,511.50 552.97 89.48 ----
767.00
Notes:
- ft, TOC - feet below the well top of casing
'--- No product present
NM - Product present but accurate measurement not obtained
Where as one sock can hold approximately 0.133 gallons of product
NA - Data Not Available
N/A = Not Applicable
1 suffix denotes preAFVR/MMPE measurement
2 suffix denotes post AFVR/MMPE measurement
"pumped product" using hand powered peristaltic pump
*Pre-recovery
8/28/2023 -
9/1/2023 0.00 4,610 55.78 9.07 MMPE
2/27/2023 -
3/3/2023 0.00 4,710 50.97 8.28 MMPE
0.00 4,860 34.73 5.65 MMPE
9/12/2022-
9/16/2022 0.00 4,770 48.16 7.83 MMPE
3/28/2022-
4/1/2022
Cumulative Volume of Product Recovered to Date:
Totals:
8/23/2021-
8/27/2021 22 4,858 84.66 13.76 MMPE
Projected Mass Reduction (%)
Soil Source Zone Mass (Projected )
Smear Source Zone Mass (Projected )
Groundwater Zone Mass (Projected )Total Mass: Baseline/Milestone (Proj.)
6/7/2021 10/4/2021 5/17/2022 10/18/2022 3/29/2023 10/6/2023
Soil Source Zone
Smear Source Zone
Groundwater Zone*0.029 0.023 0.115 0.129 0.167 0.106
Excavated from Soil/Smear
Extracted as Vapor/Gas
Extracted as LiquidTotal Mass Removed (est.)0.029 0.023 0.115 0.129 0.167 0.106
Revised Total Mass (est.)
Estimated Reduction Rate --20.69%400.00%12.17%29.46%-36.53%Reference Milestone (label from above )Reference Milestone (value from above )Reduction Progress vs Milestone
Notes:
Mass presented in kilograms (kg)
*Mass estimations have been prepared using available recent groundwater sampling data.
Baseline and milestone values were not provided.
Measured Mass
Removed Mass
TABLE 6
EVALUATION OF CHANGE IN CONTAMINANT MASS
Kerr's Hickory Ready Mixed Concrete, Inc.
1126 1st Avenue Southwest
Initial Mass Estimate / Projected
Milestones
Initial
Baseline
Milestones End /
Closure
Hickory, Catawba County, NC
Incident No. 20025
Measured / Calculated Change in
Contaminant Mass (from sampling )
Milestone Sampling / Measurment Event Dates
Total Plume
Area1 Thickness2 Porosity3 Average
Concentration
ft^2 ft na ft^3 m^3 L ug/L ug kg lb.10/6/2023 1-Methylnaphthalene >2L 3,201 11.64 0.3 11,173 316 316,380 174 54,899,796 0.055 0.12
10/6/2023 2-Methylnaphthalene >2L 1,084 10.77 0.3 3,501 99 99,147 371 36,733,898 0.037 0.08
10/6/2023 Naphthalene >2L 2,859 11.64 0.3 9,980 283 282,601 50 14,112,364 0.014 0.03
0.106 0.23
1. as calculated from Figures 4A-4C
2. average depth of impacted wells - DTW (saturated zone)
3. mean value from CSA
Sample
Date Constituent Volume Total Mass
Total Mass:
Incident No. 20025
TABLE 7
GROUNDWATER CONTAMINANT MASS CACLCULATIONS
Kerr's Hickory Ready Mixed Concrete, Inc.
1126 1st Avenue Southwest
Hickory, Catawba County, NC
GROUNDWATER MONITORING / FREE PRODUCT RECOVERY REPORT KERR’S HIKCORY READY-MIXED CONCRETE HICKORY, NORTH CAROLINA INCIDENT # 20025

KERR’S HICKORY READY MIXED CONCRETE: GWM / FPR REPORT – OCTOBER 2023

APPENDIX A
RELEVANT CORRESPONDENCE

May 25, 2023 Kerr’s Ready Mixed Concrete, Inc.
P.O. Box 1924 Hickory, North Carolina 28603 Attention: Roger Kerr
Re: Acknowledgment of Receipt/ Notice of Regulatory Requirements 15A NCAC 2L .0407 Kerr’s Ready Mixed Concrete 1126 1st Avenue SW, Hickory Catawba County Incident Number: 20025 Risk Classification: Intermediate
Dear Mr. Kerr: On May 15, 2023, the Underground Storage Tank Section of the Division of Waste Management, Mooresville
Regional Office, received the Groundwater Monitoring Report for the above-referenced site. The report has been reviewed and will remain in the UST Section’s files. The Division agrees with your client’s recommendation to continue with MMPE at this time.
The next Groundwater Monitoring Report should be received by this office no later than October 31, 2023. If you have any questions regarding this notice, please contact me at the address or telephone number listed below for the Mooresville Regional Office.
Sincerely, Brad C. Newton, P.G. Hydrogeologist Mooresville Regional Office
UST Section, Division of Waste Management, NCDEQ cc: Daniel Fisher – Crawford Environmental Services (via e-mail)
Catawba County Health Department
Site Name City / County /Catawba Incident #20025
Resp Pty Name / Contact /Incident Mgr Region MORRP Type (Owner/Operator / Landowner / Attny-in-fact)Change Order?Prev. TA #34
Consultant / Project Mgr /Daniel Fisher
Telephone / Fax Number /Task Authorization Number:35 ChangeOrd:
Project Mgr Email Site Risk / Rank / Abatement:I160D RRA Date:
Proposal# / Scope Dates /% Commercial (C=100%, NC=0%, Both=1%-99%)
Has STF Eligibility Been Determined? (Y/N)Site Status (Active or NFA Date)
With Claim: [ ] All Main Consultant/Contractor invoices attached?[ ] Proof of payment attached directly to the front of each invoice?
 Important: The date of reimbursement is dependent on the Trust Fund balance. There may be a delay in the reimbursement of claims for work under this ePATA.3rd Pty Ded?Task #Lab /
SubCode RO AuthProposed
Rate/Price
(Consultant)CO AuthProposed Task
Subtotal
(Consultant)
Final
Preapproved
Subtotal
(UST Section)
Claimed
Amount3
(Consultant)
7.420 1 /week y $2,500.00 y $2,500.00 $2,500.00 /
7.420 1 /week y $2,500.00 y $2,500.00 $2,500.00 /
7.420 1 /week y $1,500.00 y $1,500.00 $1,500.00 /
7.420 5000 /gallon y $0.35 y $1,750.00 $1,750.00 /
12.030 4 /night y $155.00 y $620.00 $620.00 /
7.201 8 /hour y $93.00 y $744.00 $744.00 /
4.031 5 /well y $110.00 y $550.00 $550.00 /
2.087 5 /well y $50.00 y $250.00 $250.00 /
4.090 #321 5 /sample y $97.00 y $485.00 $485.00 /
4.090 #810 8 /well y $11.00 y $88.00 $88.00 /
6.090 1 /report y $1,125.00 y $1,125.00 $1,125.00 /
12.050 3 /trip y $250.00 y $750.00 $750.00 /
12.055 3 /trip y $50.00 y $150.00 $150.00 /
//
//
//
//
//
//
//
//
//
//
//
//
//
//
Requested Preapproved Claimed 3
TOTAL:$13,012.00 $13,012.00 TOTAL:
Total Standard Costs (Not Third Party)$13,012.00 $13,012.00 Total Standard Costs
Total applied as Third Party Deductible/Damage Costs $0.00 $0.00 Total Third Pty CostsProcess Tracking (Date)
TA Submittal:5/31/23 by:(PM)(Reserved for RO)
RO Review:6/1/23 by:(IM)Joint UST Preapproval Confirmed By:Date1 6/5/2023
CO Review:6/5/23 by:(STF)RP or Designee Receipt Confirmed By:Date 4
1 - This ePATA expires one year from the Joint UST Preapproval date. This does not extend, alter, or supersede any regulatory deadlines (e.g., NORR's, NOV's, Enforcements, etc.)2 - THE ONE YEAR STATUTE OF LIMITATIONS APPLIES TO EACH INDIVIDUAL TASK. Costs must be claimed within one year of completion of that task to be reimbursable.
3 - Only Tasks included on this ePATA may be claimed. Do not include other Tasks or claimed costs (i.e., Claim preparation) that were not preapproved or the claim will be returned.
4 - Preapproval is not valid (i.e., claimable) until receipt is signed as 'Confirmed' by the RP or their designee and returned to the Trust Fund within a week of approval. Signature
indicates acknowledgement of the tasks and amounts approved. Any objections/appeals must be submitted via Change Order prior to work proceeding. Scope/costnegotiations do not supersede other regulatory deadlines as described in #1 above. Also, any ePATA that has been signed as 'Confirmed' by both the UST Section and RPis not to be modified without written consent by all signatories.
5 - Tasks approved on Directed - CAB Only ePATAs must be performed in accordance with all applicable rules, statutes, and RRD Task Scopes of Work to be reimbursed in full.
DWM/UST ePATA 4/1/2022
DIRECTED COSTS
Hickory
(Must Complete with Claim Submittal)(See Instructions / RRD for Tasks requiring Preapproval / Task Authorization)
Owner/Operator
540.343.6256 (Reserved for Incident Manager)
PREAPPROVAL / TASK AUTHORIZATION
Kerr's Hickory Ready-Mixed Concrete, Inc.
Note:This Electronic Preapproval Task Authorization (ePATA)shall be used to receive preapproval from the UST Section.A proposal,including maps and figures,must be
attached to elaborate on the costs for the taskslisted below that describes the scope of work and the rationale forthe proposed activities.If,following completion of this ePATA,
you discover that unexpected tasks must be performed, incurring costs for tasks not originally included with this form,you must complete and submit a separate ePATA requestdesignated as a "Change Order" in theprovided space above prior to conducting those tasks.Include a copy of the prior ePATAform for confirmation.Please attach this form to
the cover of the corresponding claim when requesting reimbursement.IMPORTANT:Only one claim may be submitted per ePATA and all work on the ePATA must have been
completed within12 monthsof the completion date of the FIRSTcompletedtask to remain within the Statute ofLimitations.All ePATAs submitted within a claimareclosed with that
claim,and may not be re-used in a separate submittal,even for costs or tasks that were not originally claimed.Final reimbursement of costs associated with the Total Claimedamount below may be affected by the eligibility status of the site (i.e.,deductibles,apportionment,etc.),and the documentary validation of incurred costs as reasonable and
necessary expenses per 15A NCAC 2P .0402 and .0404.
bcn
TC
(Initials)
DJF
Proposed
Units / Type
(Consultant)
Brad Newton
YESTA-35 5/31/2023 - 10/31/2023
540.343.6259
Dates of Work
(Consultant)
Started1 / Completed2
FINAL REIMBURSEMENT
NO
dfisher@[e-mail]
Kerr's HRM Concrete, Inc.Roger Kerr
CES of NC, PLLC
ELECTRONIC PREAPPROVAL TASK AUTHORIZATION FORMDept of Environmental Quality -Division of Waste Management
MMPE is approved but 4 of 5 previous MMPE events did not meet the performance requirement of >=2000 gallons fluid and >= 20 gallons vapor recovered. Evidence of continued LNAPL reduction will need to be provided to continue funding subsequent events.
06/06/2023
GROUNDWATER MONITORING / FREE PRODUCT RECOVERY REPORT KERR’S HIKCORY READY-MIXED CONCRETE HICKORY, NORTH CAROLINA INCIDENT # 20025

KERR’S HICKORY READY MIXED CONCRETE: GWM / FPR REPORT – OCTOBER 2023

APPENDIX B
MMPE REPORT

www.AdvancedEnvironmental.com
"Your Environmental Solutions Partner"
ADVANCED ENVIRONMENTAL
SERVICES, INC.
PO Box 38218
Greensboro, NC 27438
[phone]
[e-mail]
www.AdvancedEnvironmental.com
INVOICE
BILL TO
Crawford Environmental
Services, Inc.
15 Church Ave, SW
Roanoke, Va 24011
SHIP TO
Crawford Environmental
Services, Inc.
ap@crawfordenvironment
al.com
INVOICE #2191
DATE 09/20/2023
DUE DATE 11/04/2023
TERMS 45 days

JOB#; NAME DATES OF SERVICE PO# OR PM
Kerr's Concrete, Hickory, NC *** 8/28 - 9/1, 2023 ***Allison Streams - PM
TASK DESCRIPTION QTY RATE UNITS AMOUNT
7.420 MMPE system, power supply and
mobe
1 2,500.00 week 2,500.00
7.420a Equipment 1 1,500.00 event 1,500.00
7.420c Fluids disposal 4,610 0.35 gallon 1,613.50
7.420d Time for MMPE prep., system setup,
supervision, operation and
maintenance, breakdown and non-
mobe travel
1 2,500.00 week 2,500.00
12.030 Per-diem 4 151.00 night 604.00

Thank you for your business! Past due amounts
are subject to finance charges of 1.5% per month
plus all applicable attorney's collection fees.
SUBTOTAL 8,717.50
TAX 0.00
TOTAL 8,717.50
BALANCE DUE $8,717.50

ADVANCED
ENVIRONMENTAL SERVICES, INC.
“Your Environmental Solutions Partner”

MOBILE
MULTI-PHASE
EXTRACTION REPORT

Site Location:

Kerr’s Ready Mixed Concrete
1126 First Avenue SW
Hickory, North Carolina

Prepared for:

Crawford Environmental Services
5104 Reagan Drive Suite 7
Charlotte, North Carolina 28206
PM – Ms. Allison Streams - Project Manager

September 19, 2023

TABLE OF CONTENTS

EVENT SUMMARY

MMPE FIELD LOG

MASS-REMOVAL CALCULATION

FIELD NOTES

DISPOSAL MANIFEST

MOBILE MULTI-PHASE EXTRACTION
EVENT SUMMARY

September 19, 2023

Location: Kerr’s Ready Mixed Concrete
1126 First Avenue SW
Hickory, North Carolina

Client: Crawford Environmental Services
5104 Reagan Drive, Suite 7
Charlotte, North Carolina 28206

Event Dates: August 28 - September 1, 2023
Advanced Job # 03-2224

Advanced Personnel: Lee Heilig and Chad Widner

MMPE System: MMPE system rated 28”hg at 280 CFM
4’ discharge stack - 4” diameter
5,000 - gallon tanker
Approximately 120’of 1.5” hose to 3 wells

Extraction Well: MW-4, RW-4 and RW-5

Well Initial FP/WL(ft) Final FP/WL(ft) Stinger depth(ft) Run Time
MW-4 18.25/18.29 21.53 19 96.0 hours
RW-4 20.95/20.96 22.18 21 96.0 hours
RW-5 17.65/17.69 19.91 19 96.0 hours

Description of Event
The MMPE event ran from 12:40 August 28, through 12:40 September 1, 2023. The MMPE
system was active for 96.0 hours. During the event vacuum at the recovery pump ranged from
20.0 to 21.0 inches of mercury (hg) and stabilized at approximately 20.0 inches of mercury.
Airflow rates ranged from 3,200 to 3,400 feet per minute and stabilized at 3,400 feet per minute.
System temperature ranged from 126 - 152 degrees (F) and humidity ranged from 20 to 99
percent. Field gauged volatile organic compounds (VOC’s) decreased from 1,800 parts per-
million (PPM) to 260 (PPM) throughout the event.

Groundwater / Product Mix Recovered:
During the event, a total of 4,610 gallons of product/water mix were removed from the site and
properly disposed at a certified North Carolina disposal facility. Following the event, a
petroleum sheen was observed in tanker. Total fluids recovered, was measured based on stick
readings conducted during and following the event. Based on 96.0 hours of operation and a total
of 4,610 gallons recovered, the average groundwater recovery rate was calculated to be
approximately 48.02 gallons per hour.

Events Results:
Based on mass-removal calculations 55.78 pounds or 9.07 gallons of VOC’s were removed as
vapor. Draw-down and vacuum influence readings were taken at monitoring points MW-16,
RW-1 and RW-3. Vacuum influence was observed in RW-1 at 0.10 inches of water.
Drawdown was observed in MW-16, RW-1 and RW-3 at 0.48, 0.30 and 0.34 feet
respectfully. Following the event, no free product was identified in any well.

MMPE FIELD LOG:
CLIENT: Crawford Environmental Services
JOB NAME: Kerr's Ready Mixed Concrete
LOCATION: Hickory, NC
MMPE EVENT DATES: August 28 - September 28, 2023
EXTRACTION POINTS: MW-4, RW-4 and RW-5
AES JOB NUMBER: 08 - 2358
DATE TIME FLOW (f/m) HUM.(%) TEMP. (F)VOC's(ppm)VAC. (hg")GALLONS STINGER/WL's EXTRACTION POINTS (hg")
MW-4 RW-4 RW-5
Stinger(ft)19 21 19
Start 12:40 Initial WL's 18.25/18.29 20.95/20.96 17.65/17.69
08/28/23 12:50 3,200 99.0 126 1,800 21.0 14.0 11.0 13.0
13:50 3,400 70.0 150 1,650 20.0 14.0 10.0 13.0
14:50 3,400 58.0 152 1,400 20.0 270 gal.14.0 10.0 12.0
16:00 3,400 55.0 150 1,450 20.0 14.0 10.0 13.0
08/29/23 7:35 3,400 47.0 148 1,100 20.0 877 gal.13.0 10.0 12.0
8:35 3,400 41.0 150 1,250 20.0 13.0 9.0 12.0
11:00 3,400 43.0 150 1,100 20.0 13.0 9.0 11.0
17:00 3,400 38.0 152 985 20.0 13.0 10.0 12.0
08/30/23 7:40 3,400 36.0 144 900 20.0 1,805 gal.13.0 9.0 12.0
8:40 3,400 38.0 142 950 20.0 13.0 10.0 12.0
10:00 3,400 34.0 144 900 20.0 13.0 9.0 12.0
16:00 3,400 31.0 144 920 20.0 12.0 10.0 11.0
08/31/23 7:45 3,400 33.0 142 820 20.0 2,927 gal.3.0 10.0 11.0
8:45 3,400 32.0 140 780 20.0 13.0 10.0 11.0
10:00 3,400 30.0 142 700 20.0 12.0 10.0 12.0
16:00 3,400 26.0 144 580 20.0 12.0 10.0 12.0
09/01/23 8:15 3,400 23.0 142 300 20.0 4,110 gal.13.0 10.0 12.0
10:30 3,400 20.0 144 260 20.0 13.0 10.0 12.0
Final WL's 21.53 22.18 19.91
End 12:40 Total fluids: 4,610 gal.
Total free product:sheen
DATE TIME EXTRACTION POINTS (hg") cont. VACUUM INFLUENCE (h20")WELL GAUGING (ft)
MW-16 RW-1 RW-3 MW-16 RW-1 RW-3
Start 12:40 Stinger (ft)
initial WL's 18.13 21.29 20.62
08/28/23 14:50 0.00 0.00 0.00
08/29/23 8:35 0.00 0.10 0.00 18.15 21.40 20.79
08/30/23 16:00 0.00 0.10 0.00 18.18 21.44 20.85
08/31/23 10:00 0.00 0.10 0.00 18.23 21.46 20.89
09/01/23 8:15 0.00 0.10 0.00 18.61 21.59 20.96
End 12:30
Page 1 of 1
MOBILE MULTI-PHASE EXTRACTION EVENT
SITE NAME: KERR'S READY MIXED CONCRETE CLIENT: CRAWFORD ENVIRONMENTAL SERVICES
INCIDENT NUMBER:
AVERAGE DEPTH TO GROUNDWATER: 18 - 21 ft.
DESCRIBE SOIL IN THE SATURATED ZONE:
AVERAGE HYDRAULIC CONDUCTIVITY (if known):
EXTRACTION WELLS USED FOR MMPE: MW-4, RW-4 AND RW-5
SPECIFICATIONS OF THE MMPE SYSTEM (cfm @ in Hg): 280 cfm @ 28.0"Hg
DRY STANDARD CUBIC FEET PER MINUTE (DSCFM) AIR FLOW CALCULATIONS (Qstd)
Date Hours Vacuum Velocity Pipe ID Temp Rel Humid Water Water Qstd(inches of Hg)(ft/min)(in)(°F)(%)Vapor (Wt%)Vapor (Vol%)(flow)
8/28/23 24.00 20.00 3350.00 4 144 70.0 0.069 0.100 230
8/29/23 48.00 20.00 3400.00 4 150 42.0 0.060 0.088 234
8/30/23 72.00 20.00 3400.00 4 144 35.0 0.049 0.073 240
8/31/23 96.00 20.00 3400.00 4 142 27.0 0.040 0.060 245
9/1/23
NOTES
Qstd = Flow at DSCFM
Vacuum = The level of vacuum being applied should be recorded from the MMPE system (inches of Hg)
Velocity = The rate at which air flows is measured at the blower discharge piping (anemometer or pitot tube)
Pipe ID = The inside diameter of the blower discharge piping (from the MMPE system)
Temperature = The temperature of the air stream exiting the blower discharge piping (dry bulb temp., in deg.°F)
Relative humidity = The % relative humidity of the air stream exiting the blower discharge piping
Bwsw = water vapor % by weight, i.e., pounds of water per pound of dry air, derived from the Psychrometric chart (temp Vs relative humidity)
Bws = water vapor % by volume
EQUATIONS
Bws = (Bwsw/18 lb-mole H20)/[(1/28.84 lb-mole dry air) + (Bwsw/18 lb-mole H2O)]
Qstd = (1-Water Vapor) * velocity * (PI * (diameter/24)2) * (528°R/(Temp + 460))
EMISSION CALCULATIONS
Elapsed
Time Flow PPMmeasured PPMwet PPMdry K PPMconc Cc:m Cc PMRc PMRg PMR
(hour)(DSCFM)(ppm)(#C - gas)(mg/dsm3)(lb/dscf)(lb/hour)(lb/hour)(lb)
24 230 1575 1575 1749 1 1749 873 5.44854E-05 0.75 0.87 20.89
48 234 1109 1109 1216 1 1216 607 3.78665E-05 0.53 0.62 14.79
72 240 918 918 990 1 990 494 3.08409E-05 0.45 0.52 12.36
96 245 573 573 610 1 610 304 1.8993E-05 0.28 0.32 7.74
Total emissions in pounds 55.78
Total emissions as gallons (pounds / 6.152)9.07
NOTES
PPMmeasured = Actual measurements (ppm) taken with a OVA or TVA at the blower discharge piping
PPMwet = "wet" concentration
PPMdry = "dry" concentration
K = Number of carbons in calibration gas: (Methane K = 1, or Propane K = 3, or Hexane K = 6)
PPMc= PPMv, Volumetric concentration of VOC emissions as carbon, dry basis at STP
Cc:m = mg/dsm3, mass concentration of VOC emissions as carbon
Mc = 12.01 mg/mg-mole, molecular weight of carbon
K3 = 24.07 dsm3/106 mg-mole, mass to volume conversion factor at STP
Cc = lb/dcsf, mass concentration of VOC emissions as carbon, dry basis at STP
PMRc = lb/hr, pollutant mass removal rate of VOC's as carbon
PMRg = lb/hr, pollutant mass removal rate of of VOC's as gasoline
PMR = lb, pollutant mass removal of VOC's as gasoline
EQUATIONS
PPMwet = PPMmeasuredPPMdry = (PPMwet)/(1-Bws)
PPMc = (PPMd)(K)
Cc:m = (PPMc)(Mc / K3)
Cc = (Cc:m)(62.43x10-9 lb-m3/mg-ft3)
PMRc = (Cc)(Qstd)(60 minute/hour)
PMRg = (PMRc)(Mg/Mcg)
PMR = (PMRg)(#hours)
GROUNDWATER MONITORING / FREE PRODUCT RECOVERY REPORT KERR’S HIKCORY READY-MIXED CONCRETE HICKORY, NORTH CAROLINA INCIDENT # 20025

KERR’S HICKORY READY MIXED CONCRETE: GWM / FPR REPORT – OCTOBER 2023

APPENDIX C
GROUNDWATER SAMPLING LOGS

GROUNDWATER MONITORING / FREE PRODUCT RECOVERY REPORT KERR’S HIKCORY READY-MIXED CONCRETE HICKORY, NORTH CAROLINA INCIDENT # 20025

KERR’S HICKORY READY MIXED CONCRETE: GWM / FPR REPORT – OCTOBER 2023

APPENDIX D
LABORATORY REPORT(S) & CHAIN OF CUSTODY DOCUMENTATION

ANALYTICAL REPORT
PREPARED FOR
Attn: Allison Streams
Crawford Environmental Services Inc
1504 Reagan Drive
Charlotte, North Carolina 28206
Generated 10/17/2023 6:48:16 AM
JOB DESCRIPTION
Kerr's
JOB NUMBER
400-244675-1
See page two for job notes and contact information.
Pensacola FL 32514
3355 McLemore Drive
Eurofins Pensacola
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Eurofins Pensacola
Eurofins Pensacola is a laboratory within Eurofins Environment Testing Southeast, LLC, a company within Eurofins Environment Testing Group of Companies
Job Notes
This report may not be reproduced except in full, and with written approval from the laboratory. The results relate only to the
samples tested. For questions please contact the Project Manager at the e-mail address or telephone number listed on this
page.
The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the
methodology, with any exceptions noted. This report shall not be reproduced except in full, without the express written
approval of the laboratory. All questions should be directed to the Eurofins Environment Testing Southeast, LLC Project
Manager.
Authorization
Generated
10/17/2023 6:48:16 AM
Authorized for release by
Leah Klingensmith, Senior Project Manager
[e-mail]
[phone]
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Table of Contents
Client: Crawford Environmental Services Inc
Project/Site: Kerr's
Laboratory Job ID: 400-244675-1
Page 3 of 20 Eurofins Pensacola10/17/2023
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
QC Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
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Case Narrative
Client: Crawford Environmental Services Inc Job ID: 400-244675-1
Project/Site: Kerr's
Job ID: 400-244675-1
Laboratory: Eurofins Pensacola
Narrative
Job Narrative
400-244675-1
Analytical test results meet all requirements of the associated regulatory program listed on the Accreditation/Certification Summary Page
unless otherwise noted under the individual analysis. Data qualifiers are applied to indicate exceptions. Noncompliant quality control
(QC) is further explained in narrative comments.
Matrix QC may not be reported if insufficient sample or site-specific QC samples were not submitted. In these situations, to
demonstrate precision and accuracy at a batch level, a LCS/LCSD may be performed, unless otherwise specified in the method.
Surrogate and/or isotope dilution analyte recoveries (if applicable) which are outside of the QC window are confirmed unless attributed
to a dilution or otherwise noted in the narrative.
Regulated compliance samples (e.g. SDWA, NPDES) must comply with the associated agency requirements/permits.
Receipt
The samples were received on 10/7/2023 7:46 AM. Unless otherwise noted below, the samples arrived in good condition, and, where
required, properly preserved and on ice. The temperature of the cooler at receipt time was 3.5°C
GC/MS Semi VOA
Method 625.1_SIM: The following sample was diluted to bring the concentration of target analytes within the calibration range: RW-1
(400-244675-1). Elevated reporting limits (RLs) are provided.
Method 625.1_SIM: Due to sample matrix effect on the internal standard (ISTD), a dilution was required for the following sample: RW-5
(400-244675-3).
No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page.
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Detection Summary
Job ID: 400-244675-1Client: Crawford Environmental Services Inc
Project/Site: Kerr's
Client Sample ID: RW-1 Lab Sample ID: 400-244675-1
2-Methylnaphthalene
RL
0.190 ug/L
MDL
0.0379
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA119.7 625.1 SIM
Benzo[a]anthracene 0.190 ug/L0.0379 Total/NA10.233 625.1 SIM
Benzo[a]pyrene 0.190 ug/L0.0379 Total/NA10.0963 J 625.1 SIM
Benzo[b]fluoranthene 0.190 ug/L0.0379 Total/NA10.109 J 625.1 SIM
Benzo[k]fluoranthene 0.190 ug/L0.0379 Total/NA10.0809 J 625.1 SIM
Chrysene 0.190 ug/L0.0379 Total/NA10.172 J 625.1 SIM
Dibenz(a,h)anthracene 0.190 ug/L0.0379 Total/NA10.0541 J 625.1 SIM
Indeno[1,2,3-cd]pyrene 0.190 ug/L0.0379 Total/NA10.0506 J 625.1 SIM
Naphthalene 0.190 ug/L0.0379 Total/NA118.2 625.1 SIM
Pyrene 0.190 ug/L0.0379 Total/NA10.741 625.1 SIM
1-Methylnaphthalene - DL 1.90 ug/L0.379 Total/NA1069.0 625.1 SIM
Acenaphthene - DL 1.90 ug/L0.379 Total/NA102.21 625.1 SIM
Anthracene - DL 1.90 ug/L0.379 Total/NA102.10 625.1 SIM
Fluoranthene - DL 1.90 ug/L0.379 Total/NA100.709 J 625.1 SIM
Fluorene - DL 1.90 ug/L0.379 Total/NA105.13 625.1 SIM
Phenanthrene - DL 1.90 ug/L0.379 Total/NA107.23 625.1 SIM
Client Sample ID: RW-3 Lab Sample ID: 400-244675-2
1-Methylnaphthalene
RL
0.199 ug/L
MDL
0.0397
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA10.472 625.1 SIM
Anthracene 0.199 ug/L0.0397 Total/NA10.0658 J 625.1 SIM
Benzo[a]anthracene 0.199 ug/L0.0397 Total/NA10.0684 J 625.1 SIM
Fluoranthene 0.199 ug/L0.0397 Total/NA10.0730 J 625.1 SIM
Fluorene 0.199 ug/L0.0397 Total/NA10.130 J 625.1 SIM
Phenanthrene 0.199 ug/L0.0397 Total/NA10.0890 J 625.1 SIM
Pyrene 0.199 ug/L0.0397 Total/NA10.0745 J 625.1 SIM
Client Sample ID: RW-5 Lab Sample ID: 400-244675-3
1-Methylnaphthalene
RL
0.192 ug/L
MDL
0.0385
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA112.1 625.1 SIM
2-Methylnaphthalene 0.192 ug/L0.0385 Total/NA17.13 625.1 SIM
Acenaphthene 1.92 ug/L0.385 Total/NA102.38 625.1 SIM
Anthracene 1.92 ug/L0.385 Total/NA109.12 625.1 SIM
Benzo[a]anthracene 0.192 ug/L0.0385 Total/NA10.192 625.1 SIM
Benzo[a]pyrene 0.192 ug/L0.0385 Total/NA10.0499 J 625.1 SIM
Benzo[b]fluoranthene 0.192 ug/L0.0385 Total/NA10.0660 J 625.1 SIM
Chrysene 0.192 ug/L0.0385 Total/NA10.258 625.1 SIM
Fluoranthene 1.92 ug/L0.385 Total/NA101.59 J 625.1 SIM
Fluorene 1.92 ug/L0.385 Total/NA104.14 625.1 SIM
Naphthalene 0.192 ug/L0.0385 Total/NA19.65 625.1 SIM
Phenanthrene 1.92 ug/L0.385 Total/NA107.64 625.1 SIM
Pyrene 0.192 ug/L0.0385 Total/NA14.17 625.1 SIM
Eurofins Pensacola
This Detection Summary does not include radiochemical test results.
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Sample Summary
Client: Crawford Environmental Services Inc Job ID: 400-244675-1
Project/Site: Kerr's
Lab Sample ID Client Sample ID Matrix Collected Received
400-244675-1 RW-1 Water 10/06/23 11:15 10/07/23 07:46
400-244675-2 RW-3 Water 10/06/23 11:40 10/07/23 07:46
400-244675-3 RW-5 Water 10/06/23 10:50 10/07/23 07:46
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Client Sample Results
Job ID: 400-244675-1Client: Crawford Environmental Services Inc
Project/Site: Kerr's
Lab Sample ID: 400-244675-1Client Sample ID: RW-1
Matrix: WaterDate Collected: 10/06/23 11:15
Date Received: 10/07/23 07:46
Method: EPA 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM)
RL MDL
19.7 0.190 0.0379 ug/L 10/12/23 10:58 10/13/23 21:27 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
2-Methylnaphthalene
0.190 0.0379 ug/L 10/12/23 10:58 10/13/23 21:27 10.233Benzo[a]anthracene
0.190 0.0379 ug/L 10/12/23 10:58 10/13/23 21:27 10.0963 JBenzo[a]pyrene
0.190 0.0379 ug/L 10/12/23 10:58 10/13/23 21:27 10.109 JBenzo[b]fluoranthene
0.190 0.0379 ug/L 10/12/23 10:58 10/13/23 21:27 1NDBenzo[g,h,i]perylene
0.190 0.0379 ug/L 10/12/23 10:58 10/13/23 21:27 10.0809 JBenzo[k]fluoranthene
0.190 0.0379 ug/L 10/12/23 10:58 10/13/23 21:27 10.172 JChrysene
0.190 0.0379 ug/L 10/12/23 10:58 10/13/23 21:27 10.0541 JDibenz(a,h)anthracene
0.190 0.0379 ug/L 10/12/23 10:58 10/13/23 21:27 10.0506 JIndeno[1,2,3-cd]pyrene
0.190 0.0379 ug/L 10/12/23 10:58 10/13/23 21:27 118.2Naphthalene
0.190 0.0379 ug/L 10/12/23 10:58 10/13/23 21:27 10.741Pyrene
Nitrobenzene-d5 (Surr)57 31-111 10/12/23 10:58 10/13/23 21:27 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Terphenyl-d14 (Surr)50 10/12/23 10:58 10/13/23 21:27 130-129
Method: EPA 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM) - DL
RL MDL
69.0 1.90 0.379 ug/L 10/12/23 10:58 10/16/23 13:40 10
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1-Methylnaphthalene
1.90 0.379 ug/L 10/12/23 10:58 10/16/23 13:40 102.21Acenaphthene
1.90 0.379 ug/L 10/12/23 10:58 10/16/23 13:40 10NDAcenaphthylene
1.90 0.379 ug/L 10/12/23 10:58 10/16/23 13:40 102.10Anthracene
1.90 0.379 ug/L 10/12/23 10:58 10/16/23 13:40 100.709 JFluoranthene
1.90 0.379 ug/L 10/12/23 10:58 10/16/23 13:40 105.13Fluorene
1.90 0.379 ug/L 10/12/23 10:58 10/16/23 13:40 107.23Phenanthrene
2-Fluorobiphenyl 53 32-109 10/12/23 10:58 10/16/23 13:40 10
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Eurofins Pensacola
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Client Sample Results
Job ID: 400-244675-1Client: Crawford Environmental Services Inc
Project/Site: Kerr's
Lab Sample ID: 400-244675-2Client Sample ID: RW-3
Matrix: WaterDate Collected: 10/06/23 11:40
Date Received: 10/07/23 07:46
Method: EPA 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM)
RL MDL
0.472 0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1-Methylnaphthalene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 1ND2-Methylnaphthalene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 1NDAcenaphthene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 1NDAcenaphthylene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 10.0658 JAnthracene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 10.0684 JBenzo[a]anthracene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 1NDBenzo[a]pyrene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 1NDBenzo[b]fluoranthene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 1NDBenzo[g,h,i]perylene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 1NDBenzo[k]fluoranthene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 1NDChrysene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 1NDDibenz(a,h)anthracene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 10.0730 JFluoranthene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 10.130 JFluorene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 1NDIndeno[1,2,3-cd]pyrene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 1NDNaphthalene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 10.0890 JPhenanthrene
0.199 0.0397 ug/L 10/12/23 10:58 10/13/23 21:48 10.0745 JPyrene
2-Fluorobiphenyl 69 32-109 10/12/23 10:58 10/13/23 21:48 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Nitrobenzene-d5 (Surr)59 10/12/23 10:58 10/13/23 21:48 131-111
Terphenyl-d14 (Surr)78 10/12/23 10:58 10/13/23 21:48 130-129
Eurofins Pensacola
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Client Sample Results
Job ID: 400-244675-1Client: Crawford Environmental Services Inc
Project/Site: Kerr's
Lab Sample ID: 400-244675-3Client Sample ID: RW-5
Matrix: WaterDate Collected: 10/06/23 10:50
Date Received: 10/07/23 07:46
Method: EPA 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM)
RL MDL
12.1 0.192 0.0385 ug/L 10/12/23 10:58 10/13/23 22:09 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1-Methylnaphthalene
0.192 0.0385 ug/L 10/12/23 10:58 10/13/23 22:09 17.132-Methylnaphthalene
1.92 0.385 ug/L 10/12/23 10:58 10/16/23 14:01 102.38Acenaphthene
1.92 0.385 ug/L 10/12/23 10:58 10/16/23 14:01 10NDAcenaphthylene
1.92 0.385 ug/L 10/12/23 10:58 10/16/23 14:01 109.12Anthracene
0.192 0.0385 ug/L 10/12/23 10:58 10/13/23 22:09 10.192Benzo[a]anthracene
0.192 0.0385 ug/L 10/12/23 10:58 10/13/23 22:09 10.0499 JBenzo[a]pyrene
0.192 0.0385 ug/L 10/12/23 10:58 10/13/23 22:09 10.0660 JBenzo[b]fluoranthene
0.192 0.0385 ug/L 10/12/23 10:58 10/13/23 22:09 1NDBenzo[g,h,i]perylene
0.192 0.0385 ug/L 10/12/23 10:58 10/13/23 22:09 1NDBenzo[k]fluoranthene
0.192 0.0385 ug/L 10/12/23 10:58 10/13/23 22:09 10.258Chrysene
0.192 0.0385 ug/L 10/12/23 10:58 10/13/23 22:09 1NDDibenz(a,h)anthracene
1.92 0.385 ug/L 10/12/23 10:58 10/16/23 14:01 101.59 JFluoranthene
1.92 0.385 ug/L 10/12/23 10:58 10/16/23 14:01 104.14Fluorene
0.192 0.0385 ug/L 10/12/23 10:58 10/13/23 22:09 1NDIndeno[1,2,3-cd]pyrene
0.192 0.0385 ug/L 10/12/23 10:58 10/13/23 22:09 19.65Naphthalene
1.92 0.385 ug/L 10/12/23 10:58 10/16/23 14:01 107.64Phenanthrene
0.192 0.0385 ug/L 10/12/23 10:58 10/13/23 22:09 14.17Pyrene
2-Fluorobiphenyl 66 32-109 10/12/23 10:58 10/16/23 14:01 10
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
Nitrobenzene-d5 (Surr)56 10/12/23 10:58 10/13/23 22:09 131-111
Terphenyl-d14 (Surr)54 10/12/23 10:58 10/13/23 22:09 130-129
Eurofins Pensacola
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Definitions/Glossary
Job ID: 400-244675-1Client: Crawford Environmental Services Inc
Project/Site: Kerr's
Qualifiers
GC/MS Semi VOA
Qualifier Description
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.
Qualifier
Glossary
These commonly used abbreviations may or may not be present in this report.
¤Listed under the "D" column to designate that the result is reported on a dry weight basis
Abbreviation
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference)
Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample
DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Level"
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
MPN Most Probable Number
MQL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown)
NEG Negative / Absent
POS Positive / Present
PQL Practical Quantitation Limit
PRES Presumptive
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points
TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
Eurofins Pensacola
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Surrogate Summary
Job ID: 400-244675-1Client: Crawford Environmental Services Inc
Project/Site: Kerr's
Method: 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM)
Prep Type: Total/NAMatrix: Water
Lab Sample ID Client Sample ID (32-109)(31-111)(30-129)
FBP NBZ TPHL
57 50400-244675-1
Percent Surrogate Recovery (Acceptance Limits)
RW-1
53400-244675-1 - DL RW-1
69 59 78400-244675-2 RW-3
56 54400-244675-3 RW-5
66400-244675-3 RW-5
80 73 84LCS 400-645265/2-A Lab Control Sample
73 69 74LCSD 400-645265/3-A Lab Control Sample Dup
78 66 108MB 400-645265/1-A Method Blank
Surrogate Legend
FBP = 2-Fluorobiphenyl
NBZ = Nitrobenzene-d5 (Surr)
TPHL = Terphenyl-d14 (Surr)
Eurofins Pensacola
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QC Association Summary
Job ID: 400-244675-1Client: Crawford Environmental Services Inc
Project/Site: Kerr's
GC/MS Semi VOA
Prep Batch: 645265
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Water 625400-244675-1 RW-1 Total/NA
Water 625400-244675-1 - DL RW-1 Total/NA
Water 625400-244675-2 RW-3 Total/NA
Water 625400-244675-3 RW-5 Total/NA
Water 625MB 400-645265/1-A Method Blank Total/NA
Water 625LCS 400-645265/2-A Lab Control Sample Total/NA
Water 625LCSD 400-645265/3-A Lab Control Sample Dup Total/NA
Analysis Batch: 645400
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Water 625.1 SIM 645265400-244675-1 RW-1 Total/NA
Water 625.1 SIM 645265400-244675-2 RW-3 Total/NA
Water 625.1 SIM 645265400-244675-3 RW-5 Total/NA
Water 625.1 SIM 645265MB 400-645265/1-A Method Blank Total/NA
Water 625.1 SIM 645265LCS 400-645265/2-A Lab Control Sample Total/NA
Water 625.1 SIM 645265LCSD 400-645265/3-A Lab Control Sample Dup Total/NA
Analysis Batch: 645711
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Water 625.1 SIM 645265400-244675-1 - DL RW-1 Total/NA
Water 625.1 SIM 645265400-244675-3 RW-5 Total/NA
Eurofins Pensacola
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QC Sample Results
Job ID: 400-244675-1Client: Crawford Environmental Services Inc
Project/Site: Kerr's
Method: 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM)
Client Sample ID: Method BlankLab Sample ID: MB 400-645265/1-A
Matrix: Water Prep Type: Total/NA
Analysis Batch: 645400 Prep Batch: 645265
RL MDL
1-Methylnaphthalene ND 0.200 0.0400 ug/L 10/12/23 10:58 10/13/23 20:25 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 12-Methylnaphthalene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Acenaphthene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Acenaphthylene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Anthracene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Benzo[a]anthracene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Benzo[a]pyrene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Benzo[b]fluoranthene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Benzo[g,h,i]perylene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Benzo[k]fluoranthene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Chrysene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Dibenz(a,h)anthracene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Fluoranthene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Fluorene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Indeno[1,2,3-cd]pyrene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Naphthalene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Phenanthrene
ND 0.04000.200 ug/L 10/12/23 10:58 10/13/23 20:25 1Pyrene
2-Fluorobiphenyl 78 32-109 10/13/23 20:25 1
MB MB
Surrogate
10/12/23 10:58
Dil FacPreparedAnalyzedQualifierLimits%Recovery
66 10/12/23 10:58 10/13/23 20:25 1Nitrobenzene-d5 (Surr)31-111
108 10/12/23 10:58 10/13/23 20:25 1Terphenyl-d14 (Surr)30-129
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-645265/2-A
Matrix: Water Prep Type: Total/NA
Analysis Batch: 645400 Prep Batch: 645265
1-Methylnaphthalene 120 93.42 ug/L 78 53 -130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
2-Methylnaphthalene 120 90.52 ug/L 75 53 -130
Acenaphthene 120 106.3 ug/L 89 60 -132
Acenaphthylene 120 108.3 ug/L 90 54 -126
Anthracene 120 113.0 ug/L 94 43 -120
Benzo[a]anthracene 120 85.25 ug/L 71 42 -133
Benzo[a]pyrene 120 86.13 ug/L 72 32 -148
Benzo[b]fluoranthene 120 56.48 ug/L 47 42 -140
Benzo[g,h,i]perylene 120 79.99 ug/L 67 10 -195
Benzo[k]fluoranthene 120 115.6 ug/L 96 25 -146
Chrysene 120 105.3 ug/L 88 44 -140
Dibenz(a,h)anthracene 120 55.91 ug/L 47 10 -200
Fluoranthene 120 83.23 ug/L 69 43 -121
Fluorene 120 96.75 ug/L 81 70 -120
Indeno[1,2,3-cd]pyrene 120 63.56 ug/L 53 10 -151
Naphthalene 120 88.89 ug/L 74 36 -120
Phenanthrene 120 91.54 ug/L 76 65 -120
Pyrene 120 108.7 ug/L 91 70 -120
Eurofins Pensacola
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QC Sample Results
Job ID: 400-244675-1Client: Crawford Environmental Services Inc
Project/Site: Kerr's
Method: 625.1 SIM - Semivolatile Organic Compounds GC/MS (SIM) (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-645265/2-A
Matrix: Water Prep Type: Total/NA
Analysis Batch: 645400 Prep Batch: 645265
2-Fluorobiphenyl 32 -109
Surrogate
80
LCS LCS
Qualifier Limits%Recovery
73Nitrobenzene-d5 (Surr)31 -111
84Terphenyl-d14 (Surr)30 -129
Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 400-645265/3-A
Matrix: Water Prep Type: Total/NA
Analysis Batch: 645400 Prep Batch: 645265
1-Methylnaphthalene 120 90.88 ug/L 76 53 -130 3 40
Analyte
LCSD LCSD
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits LimitRPD
RPD
2-Methylnaphthalene 120 87.87 ug/L 73 53 -130 3 40
Acenaphthene 120 99.92 ug/L 83 60 -132 6 40
Acenaphthylene 120 104.2 ug/L 87 54 -126 4 40
Anthracene 120 108.2 ug/L 90 43 -120 4 40
Benzo[a]anthracene 120 86.23 ug/L 72 42 -133 1 40
Benzo[a]pyrene 120 93.88 ug/L 78 32 -148 9 40
Benzo[b]fluoranthene 120 69.21 ug/L 58 42 -140 20 40
Benzo[g,h,i]perylene 120 73.33 ug/L 61 10 -195 9 40
Benzo[k]fluoranthene 120 113.6 ug/L 95 25 -146 2 40
Chrysene 120 111.1 ug/L 93 44 -140 5 40
Dibenz(a,h)anthracene 120 69.72 ug/L 58 10 -200 22 40
Fluoranthene 120 91.87 ug/L 77 43 -121 10 40
Fluorene 120 95.87 ug/L 80 70 -120 1 40
Indeno[1,2,3-cd]pyrene 120 66.60 ug/L 55 10 -151 5 40
Naphthalene 120 85.76 ug/L 71 36 -120 4 40
Phenanthrene 120 91.22 ug/L 76 65 -120 0 40
Pyrene 120 101.6 ug/L 85 70 -120 7 40
2-Fluorobiphenyl 32 -109
Surrogate
73
LCSD LCSD
Qualifier Limits%Recovery
69Nitrobenzene-d5 (Surr)31 -111
74Terphenyl-d14 (Surr)30 -129
Eurofins Pensacola
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Lab Chronicle
Client: Crawford Environmental Services Inc Job ID: 400-244675-1
Project/Site: Kerr's
Client Sample ID: RW-1 Lab Sample ID: 400-244675-1
Matrix: WaterDate Collected: 10/06/23 11:15
Date Received: 10/07/23 07:46
Prep 625 STC10/12/23 10:58 EET PEN645265
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 263.6 mL 1 mL
Analysis 625.1 SIM 1 645400 10/13/23 21:27 S1B EET PENTotal/NA 0.4 mL 0.4 mL
Prep 625 DL 645265 10/12/23 10:58 STC EET PENTotal/NA 263.6 mL 1 mL
Analysis 625.1 SIM DL 10 645711 10/16/23 13:40 S1B EET PENTotal/NA 0.4 mL 0.4 mL
Client Sample ID: RW-3 Lab Sample ID: 400-244675-2
Matrix: WaterDate Collected: 10/06/23 11:40
Date Received: 10/07/23 07:46
Prep 625 STC10/12/23 10:58 EET PEN645265
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 251.6 mL 1 mL
Analysis 625.1 SIM 1 645400 10/13/23 21:48 S1B EET PENTotal/NA 0.4 mL 0.4 mL
Client Sample ID: RW-5 Lab Sample ID: 400-244675-3
Matrix: WaterDate Collected: 10/06/23 10:50
Date Received: 10/07/23 07:46
Prep 625 STC10/12/23 10:58 EET PEN645265
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 259.8 mL 1 mL
Analysis 625.1 SIM 1 645400 10/13/23 22:09 S1B EET PENTotal/NA 0.4 mL 0.4 mL
Prep 625 645265 10/12/23 10:58 STC EET PENTotal/NA 259.8 mL 1 mL
Analysis 625.1 SIM 10 645711 10/16/23 14:01 S1B EET PENTotal/NA 0.4 mL 0.4 mL
Client Sample ID: Method Blank Lab Sample ID: MB 400-645265/1-A
Matrix: WaterDate Collected: N/A
Date Received: N/A
Prep 625 STC10/12/23 10:58 EET PEN645265
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 250 mL 1 mL
Analysis 625.1 SIM 1 645400 10/13/23 20:25 S1B EET PENTotal/NA 0.4 mL 0.4 mL
Client Sample ID: Lab Control Sample Lab Sample ID: LCS 400-645265/2-A
Matrix: WaterDate Collected: N/A
Date Received: N/A
Prep 625 STC10/12/23 10:58 EET PEN645265
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 250 mL 1 mL
Analysis 625.1 SIM 20 645400 10/13/23 20:46 S1B EET PENTotal/NA 0.4 mL 0.4 mL
Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 400-645265/3-A
Matrix: WaterDate Collected: N/A
Date Received: N/A
Prep 625 STC10/12/23 10:58 EET PEN645265
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 250 mL 1 mL
Analysis 625.1 SIM 20 645400 10/13/23 21:07 S1B EET PENTotal/NA 0.4 mL 0.4 mL
Eurofins Pensacola
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Lab Chronicle
Client: Crawford Environmental Services Inc Job ID: 400-244675-1
Project/Site: Kerr's
Laboratory References:
EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL [phone]
Eurofins Pensacola
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Method Summary
Job ID: 400-244675-1Client: Crawford Environmental Services Inc
Project/Site: Kerr's
Method Method Description LaboratoryProtocol
EPA625.1 SIM Semivolatile Organic Compounds GC/MS (SIM)EET PEN
EPA625Liquid-Liquid Extraction EET PEN
Protocol References:
EPA = US Environmental Protection Agency
Laboratory References:
EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL [phone]
Eurofins Pensacola
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Accreditation/Certification Summary
Client: Crawford Environmental Services Inc Job ID: 400-244675-1
Project/Site: Kerr's
Laboratory: Eurofins Pensacola
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.
Authority Program Identification Number Expiration Date
North Carolina (WW/SW)State 314 12-31-23
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes
for which the agency does not offer certification.
Analysis Method Prep Method Matrix Analyte
625.1 SIM 625 Water 1-Methylnaphthalene
625.1 SIM 625 Water 2-Methylnaphthalene
625.1 SIM 625 Water Acenaphthene
625.1 SIM 625 Water Acenaphthylene
625.1 SIM 625 Water Anthracene
625.1 SIM 625 Water Benzo[a]anthracene
625.1 SIM 625 Water Benzo[a]pyrene
625.1 SIM 625 Water Benzo[b]fluoranthene
625.1 SIM 625 Water Benzo[g,h,i]perylene
625.1 SIM 625 Water Benzo[k]fluoranthene
625.1 SIM 625 Water Chrysene
625.1 SIM 625 Water Dibenz(a,h)anthracene
625.1 SIM 625 Water Fluoranthene
625.1 SIM 625 Water Fluorene
625.1 SIM 625 Water Indeno[1,2,3-cd]pyrene
625.1 SIM 625 Water Naphthalene
625.1 SIM 625 Water Phenanthrene
625.1 SIM 625 Water Pyrene
South Carolina State 96026 06-30-24
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes
for which the agency does not offer certification.
Analysis Method Prep Method Matrix Analyte
625.1 SIM 625 Water 1-Methylnaphthalene
625.1 SIM 625 Water 2-Methylnaphthalene
625.1 SIM 625 Water Acenaphthene
625.1 SIM 625 Water Acenaphthylene
625.1 SIM 625 Water Anthracene
625.1 SIM 625 Water Benzo[a]anthracene
625.1 SIM 625 Water Benzo[a]pyrene
625.1 SIM 625 Water Benzo[b]fluoranthene
625.1 SIM 625 Water Benzo[g,h,i]perylene
625.1 SIM 625 Water Benzo[k]fluoranthene
625.1 SIM 625 Water Chrysene
625.1 SIM 625 Water Dibenz(a,h)anthracene
625.1 SIM 625 Water Fluoranthene
625.1 SIM 625 Water Fluorene
625.1 SIM 625 Water Indeno[1,2,3-cd]pyrene
625.1 SIM 625 Water Naphthalene
625.1 SIM 625 Water Phenanthrene
625.1 SIM 625 Water Pyrene
Eurofins Pensacola
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Login Sample Receipt Checklist
Client: Crawford Environmental Services Inc Job Number: 400-244675-1
Login Number: 244675
Question Answer Comment
Creator: Roberts, Alexis J
List Source: Eurofins Pensacola
List Number: 1
N/ARadioactivity wasn't checked or is </= background as measured by a survey
meter.
N/AThe cooler's custody seal, if present, is intact.
N/ASample custody seals, if present, are intact.
TrueThe cooler or samples do not appear to have been compromised or
tampered with.
TrueSamples were received on ice.
TrueCooler Temperature is acceptable.
TrueCooler Temperature is recorded.3.5°C IR11
TrueCOC is present.
TrueCOC is filled out in ink and legible.
TrueCOC is filled out with all pertinent information.
TrueIs the Field Sampler's name present on COC?
TrueThere are no discrepancies between the containers received and the COC.
TrueSamples are received within Holding Time (excluding tests with immediate
HTs)
TrueSample containers have legible labels.
TrueContainers are not broken or leaking.
TrueSample collection date/times are provided.
TrueAppropriate sample containers are used.
TrueSample bottles are completely filled.
N/ASample Preservation Verified.
TrueThere is sufficient vol. for all requested analyses, incl. any requested
MS/MSDs
N/AContainers requiring zero headspace have no headspace or bubble is
<6mm (1/4").
TrueMultiphasic samples are not present.
TrueSamples do not require splitting or compositing.
N/AResidual Chlorine Checked.
Eurofins Pensacola
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