AS-3741_28870_CA_MRP_20230414

REPORT OF 
WATER QUALITY MONITORING 
MARCH 2023 

PISGAH ELEMENTARY SCHOOL 
1495 PISGAH HIGHWAY 
CANDLER, NORTH CAROLINA 28715 

NCDEQ UST INCIDENT NO. 28870 
FACILITY ID 0‐004505 

PREPARED FOR: 
BUNCOMBE COUNTY SCHOOLS 
175 BINGHAM ROAD 
ASHEVILLE, NORTH CAROLINA 28806 

PREPARED BY: 
WSP USA ENVIRONMENT & INFRASTRUCTURE INC. 
1308 PATTON AVENUE, SUITE C 
ASHEVILLE, NORTH CAROLINA 28806 

APRIL 14, 2023 

WSP PROJECT 6252‐16‐0231.09

WSP USA Environment & Infrastructure Inc. 
1308‐C Patton Avenue 
Asheville, North Carolina 28806 
T: 828‐252‐8130 
North Carolina Corporate Engineering License No. F‐1253, Geology No. C‐247 

April 14, 2023 

Mr. Zane Harter 
Buncombe County Schools 
175 Bingham Road 
Asheville, North Carolina 28806 

Subject:  Report of Water Quality Monitoring – March 2023 
  Pisgah Elementary School 
1495 Pisgah Highway, Candler, North Carolina 
  NCDEQ UST Incident No. 28870 
  WSP Project 6252‐16‐0231.09 

Dear Mr. Harter: 

WSP USA Environment & Infrastructure Inc. (WSP) is pleased to submit this Report of Water Quality 
Monitoring for the Pisgah Elementary School site located at 1495 Pisgah Highway in Candler, North 
Carolina. This report was prepared in general accordance with the requirements for a Monitoring Report, as 
outlined by the North Carolina Department of Environmental Quality (NCDEQ) Division of Waste 
Management, Underground Storage Tank (UST) Section.  

If you have any questions concerning this report, please do not hesitate to contact us at (828) 252‐8130. 

Sincerely, 
WSP USA Environment & Infrastructure Inc.  

Rodney M. Clark, L.G. 
Project Geologist 

Robert C. Foster, L.G. 
Associate Geologist 

Report of Water Quality Monitoring (March 2023)  April 14, 2023 
Pisgah Elementary School 
WSP Project 6252‐16‐0231.09 

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TABLE OF CONTENTS 

1. INTRODUCTION ......................................................................................................................... 1 
1.1. Site‐Specific Information .................................................................................................... 1 
1.2. Background Information ..................................................................................................... 2 
1.3. Site Geology and Hydrogeology .......................................................................................... 4 
2. FIELD ACTIVITIES ....................................................................................................................... 5 
3. LABORATORY RESULTS AND DISCUSSION ................................................................................. 6 
4. FREE PRODUCT RECOVERY ........................................................................................................ 6 
5. CONCLUSIONS AND RECOMMENDATIONS ............................................................................... 7 
6. STATEMENTS AND CERTIFICATION ........................................................................................... 8 

TABLES 

1 Water Supply Wells within 1,500‐Foot Radius of Source  
2 Monitoring Well Construction Details 
3 Historical Groundwater Elevations 
4 Summary of Laboratory Analytical Results – March 2023 
5 Historical Analytical Results 

FIGURES 

1 Topographic Site Map 
2 Monitoring Well Location Map 

APPENDICES 

A Field Data Records 
B Laboratory Report and Chain‐of‐Custody Record 

Report of Water Quality Monitoring (March 2023) April 14, 2022
Pisgah Elementary School
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1. INTRODUCTION 
This report documents field activities conducted on March 14, 2023. This incident is for a petroleum release 
from a regulated underground storage tank system consisting of one 10,000‐gallon underground storage 
tank (UST) utilized to store heating fuel for on‐site use at the Pisgah Elementary School, (Facility ID #0‐
004505) in Candler, North Carolina (Figure 1). 

The Pisgah Elementary School (site) is located at 1495 Pisgah Highway in Candler, North Carolina. The site is 
located on the southeast side of Pisgah Highway (NC Highway 151), adjacent to its intersection with State 
Road 1114 and Curtis Creek Road. The site location is depicted on Figure 1, which is comprised of the World 
Topographic Map which includes data from United States Geological Survey 7.5 minute topographic 
quadrangles, and depicts the site location and vicinity with relevant topographic features. A site plan, 
including monitoring well locations, is depicted on Figure 2, which is based on a 2019 aerial photograph 
obtained from North Carolina Orthoimagery Program. 
1.1. Site‐Specific Information 
The following information is specific to the environmental activities conducted at the site. 

Site Name: Pisgah Elementary School 
Facility ID:    0‐004505 
NCDEQ UST Incident Number:  28870 
Geographical Data Point: UST #2 
Latitude:   N 35 30’ 12.47” 
Longitude:    W ‐82 43’ 53.32” 
Site Location Map:  Figure 1 
Risk Classification:  High 

Facility Address:    1495 Pisgah Highway 
    Candler, North Carolina 28715 
    Buncombe County 

Responsible Party:  Buncombe County Schools 
175 Bingham Road 
    Asheville, North Carolina 28806 
    (828) 255‐5921 

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Primary Consultant:  WSP USA Environment & Infrastructure Inc. 
    1308 Patton Avenue, Suite C 
    Asheville, North Carolina 28806 
    (828) 252‐8130 

Release Source/Quantity: Heating oil was reportedly discharged from a vent line to ground surface 
due to mechanical malfunction of a day tank pumping system in August 
2010.  

1.2.  Background Information 
The site contains the Pisgah Elementary School and is currently utilized as an elementary school. The following 
USTs, owned by Buncombe County Schools, are currently, or have been, associated with the site: 

Tank 
No. 
Volume 
(gallons) 
Contents 
(i.e., 
gasoline, 
diesel, 
kerosene, 
heating 
oil, waste 
oil, etc.) 
Use (resale, 
heating 
building, 
distribution, 
farm or 
residential, 
etc.) 
Installation 
Date 
Date 
last 
used 
Indicate 
whether 
UST has 
been 
removed 
or closed 
in place 
Date of 
permanent 
closure (if 
applicable) 
Was a 
release 
detected 
from this 
UST 
system? If 
yes, give 
date. 
1 10,000 Heating oil Heating 
building 
Unknown Closed Closed‐in‐
place 
7/19/2007 Yes 
4/20/1999 
2 10,000 Heating oil Heating 
building 
7/1/2007 In Use N/A N/A Yes 
8/11/2010 

There have been two separate releases of heating oil at the site. The first release of heating oil, Incident No. 
20390 on April 20, 1999, was from product lines associated with UST #1. This UST was located adjacent to the 
exterior wall of a boiler room/basement in the southeast portion of the elementary school, which is located in 
the same general vicinity as the current release/source area. Following the completion of a Comprehensive 
Site Assessment and several groundwater monitoring events, the first release reportedly qualified for closure 
under risk‐based standards.  

The second release of heating oil, Incident No. 28870 occurred on August 11, 2010, was reportedly a discharge 
from a vent line associated with UST #2 to the ground surface on the southeastern side of the elementary 
school. A 75‐gallon day tank reportedly failed to operate properly thereby allowing heating oil from the 
10,000‐gallon heating oil storage tank to continue to be pumped to the day tank. This condition resulted in a 
release of approximately 1,000 to 2,000 gallons of heating oil. The day tank is a 75‐gallon staging/pumping 
device located in the basement to allow delivery of product into the boiler upon demand. Additionally, heating 
oil had reportedly entered a groundwater removal sump located in the boiler room/basement of the 
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elementary school and was subsequently released to the ground surface at a discharge outfall located 
approximately 150 feet northeast of the release.  

Initial abatement actions reportedly included the excavation of apparent fuel oil‐impacted soil at the base of 
the vent line adjacent to the southeastern portion of the building and from the sump discharge area in August 
2010 (approximately 40 tons), removal of fuel oil‐impacted water and free‐phase fuel oil from the sump on 
three occasions between August 2010 and September 2010 (approximately 1,600 gallons) and installation of 
an oil/water separator on the sump system in the boiler, which is currently inspected and maintained by 
Mountain Environmental Group, Inc. Confirmation soil samples were reportedly not collected from the 
sidewalls of either excavation because apparent soil contamination remained in‐situ. 

A Limited Site Assessment Report (LSA report), dated November 11, 2010, prepared by Mountain 
Environmental Group, Inc. identified the receptor information relative to the site. The LSA Report indicated 11 
water supply wells were identified within 1,500 feet of the source area, which is the basis for the high‐risk 
classification of the site. During the August 2020 groundwater monitoring event, WSP performed an update 
to the receptor survey by requesting information on active water accounts within 1,500 feet of the source 
area. Information regarding the water supply wells is provided in Table 1. The LSA identified the boiler 
room/basement at the school as the only known subsurface structure that could be affected by the release. 
The LSA report indicated that  accumulation of petroleum vapors had not been identified to date. The closest 
water supply well to the source area is located on‐site approximately 300 feet to the southwest of the 
source area, but is reportedly disconnected and not abandoned. Curtis Creek flows from west to east and is 
approximately 315 feet south of the source area. The confluence of Curtis Creek and South Hominy Creek is 
approximately 550 feet southeast of the site. South Hominy Creek is a tributary of the French Broad River 
water system/basin. The LSA Report indicated the site was not located in a well‐head protection area.  

The LSA report identified concentrations of petroleum constituents p‐iso propyltoluene, naphthalene, 1,2,4‐
trimethylbenzene, 1‐methylnaphthalene, C9‐C18 aliphatics and C9‐C22 aromatics exceeded the soil‐to‐water 
Maximum Soil Contaminant Concentration levels (MSCCs) and C9‐C22 aromatics exceeded its residential 
MSCC in the source area. Additionally, the LSA report indicated concentrations of petroleum constituents C9‐
C18 aliphatics and C9‐C22 aromatics exceeded the 15 North Carolina Administrative Code 02L.0202 
Groundwater Classifications and Standards (2L Groundwater Standards) in the groundwater sample collected 
from monitoring well MW‐2 in the vicinity of the sump discharge outfall. 

A Comprehensive Site Assessment Addendum (CSA Report), dated August 24, 2011, prepared by Mountain 
Environmental Group indicated the concentration of petroleum constituent naphthalene exceeded the soil‐to‐
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groundwater MSCC in a soil sample collected from the source area in the vicinity of monitoring well MW‐4. 
The CSA Report also identified concentrations of benzene, naphthalene, C9‐C18 aliphatics and C9‐C22 
aromatics were detected at concentrations that exceeded the 2L Groundwater Standards in groundwater 
samples collected from the source area (MW‐1 and MW‐4 area), and that free product was detected in MW‐4 
in July 2011. The CSA report also indicated that the petroleum constituents C9‐C18 aliphatics and C9‐C22 
aromatics were detected at concentrations that exceeded the 2L Groundwater Standards in the groundwater 
sample collected from MW‐2. The CSA Report recommended semi‐annually groundwater monitoring of 
monitoring wells MW‐1, MW‐2, MW‐3 and MW‐4 be implemented at the site. 

Free product skimmer maintenance events were performed at MW‐4 from late 2011 to late 2016 and from 
early 2018 to June 2019. Free product was not observed in MW‐4 from late 2016 to early 2018 and skimmer 
maintenance was not performed during 2017. Free product has not been observed in MW‐4 since the July 
2019 monitoring event and the skimmer was removed during the August 2020 monitoring event.  

In response to WSP’s August 2021 Report of Water Quality Monitoring, NCDEQ issued a Notice of Regulatory 
Requirements (NORR) dated September 7, 2021 which recommended, in an effort to achieve site closure, 
sampling the on‐site wells (MW‐1 through MW‐4) and analyzing the groundwater samples for volatile organic 
compounds (VOCs) and semi‐volatile organic compounds (SVOCs) in addition to the previously approved 
Massachusetts Department of Environmental Protection (MADEP) Extractable Petroleum Hydrocarbons (EPH) 
and Volatile Petroleum Hydrocarbons (VPH) analysis. Concentrations of VOCs and SVOCs were not detected 
above the laboratory reporting limits in samples collected from monitoring wells MW‐1, MW‐2, MW‐3 or 
MW‐4 in the January 2020 semi‐annual water quality monitoring event. In response to WSP’s January 2022 
Report of Water Quality Monitoring, NCDEQ issued a NORR dated October 18, 2022, which concurred with 
WSP’s recommendation for continued semi‐annual monitoring of MW‐4 for VPH and EPH according to the 
MADEP methods. NCDEQ also indicated to collect soil samples in the vicinity of MW‐1, MW‐2 and MW‐4 
during the early 2023. However, it was agreed via correspondence with NCDEQ to delay this effort until late 
2023 when school is not in session. 
1.3. Site Geology and Hydrogeology 
The site is located within the Blue Ridge Physiographic Province. Based on a review of the geologic map, the 
site is underlain by rocks of the Ashe Metamorphic and Tallulah Falls Formation, which are described as 
metagraywacke (foliated to massive; interlayered and gradational with mica schist, muscovite‐biotite gneiss 
and rare graphitic schist) and/or muscovite‐biotite gneiss (interlayered and gradational with mica schist, 
minor amphibolite and hornblende gneiss). The bedrock in the Blue Ridge Physiographic Province is a 
complex crystalline formation that has been faulted and contorted by past tectonic movements. The rock 
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has weathered to residual soils, which form the mantle for the hillsides and hilltops. The typical residual soil 
profile in areas not disturbed by erosion or human activities consists of silty and/or clayey soils near the 
surface where weathering is more advanced, underlain by sandy silt and silty sand. There may be colluvial 
(old land‐slide) material on the slopes and alluvial sediments in stream valleys and floodplains.  

According to the Soil Survey of Buncombe County, soils at the site are described as Udorthents, which 
include soils in areas where the native soil profile has been disturbed by earthwork or development.   

According to the USGS Topographic Map, dated 1961, photorevised 1990, the site ranges from 
approximately 2,240 feet to 2,260 feet above mean sea level. Surface drainage at the site appears to 
generally flow to the southeast toward Curtis Creek. Curtis Creek flows from west to east and is 
approximately 315 feet south of the source area. The confluence of Curtis Creek and South Hominy Creek is 
approximately 550 feet southeast of the site. South Hominy Creek is a tributary of the French Broad River 
water system/basin. Assuming that the groundwater table generally mirrors the local topography, 
groundwater beneath the site is expected to generally flow to the southeast towards Curtis Creek. 

Based on the CSA and LSA Reports referenced above, soils in the source area and in the vicinity of the sump 
discharge outfall reportedly consist of five to eight feet of silty clay fill material overlying sandy silt native 
material. 
2. FIELD ACTIVITIES 
WSP conducted groundwater sampling activities at the Site on March 14, 2023. Monitoring wells MW‐1 
through MW‐4 were gauged for depth to water and presence/absence of free product. Free product was 
not encountered during the March 14, 2023 monitoring event. The depths to water ranged from 
approximately six feet below ground surface in monitoring well MW‐2 to approximately 14 feet below 
ground surface in MW‐3, and are presented in Table 2 along with well construction details. Monitoring well 
locations are depicted on Figure 2. Water levels measured in MW‐1 through MW‐4 are presented along 
with historical groundwater elevations in Table 3. The groundwater elevations measured during the March 
2023 event were generally consistent as compared to the previous events. 

Following water level measurements, monitoring well MW‐4 was purged by removing three volumes of 
water under static conditions with new, single‐use, polyethylene bailers. The purge water from the well was 
discharged to the ground surface in proximity to the well in a manner that precluded erosion or surface 
runoff. Field measurements of temperature, specific conductance, and pH of groundwater were recorded. 
Field data records for the sampling are included in Appendix A. 
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Following purging, a groundwater sample was collected from monitoring well MW‐4. The groundwater 
sample was placed into a laboratory‐prepared containers labeled with sampling information, project 
information and the requested methods of analysis. The groundwater sample was placed in an ice‐chilled 
cooler and delivered under chain‐of‐custody via overnight delivery to Pace Analytical National Center (a 
North Carolina‐accredited analytical laboratory). The groundwater sample was submitted for laboratory 
analysis of VPH and EPH according to the MADEP methods (as authorized/specified by NCDEQ).  

Groundwater potentiometric maps were not drafted based on the uncertainty of the accuracy of top of casing 
elevations of the monitoring wells at the Site. Based on our review of local surficial topography and available 
groundwater elevation data, groundwater flow is expected to be to the southeast. 
3. LABORATORY RESULTS AND DISCUSSION 
Laboratory analysis of the groundwater samples reported MADEP EPH petroleum hydrocarbon fractions (C9‐
C18 aliphatics, C19‐C36 aliphatics and C9‐C22 aromatics) in the groundwater sample collected from 
monitoring well MW‐4. Concentrations of MADEP VPH petroleum hydrocarbon fractions were not detected 
above the laboratory detection limit in the groundwater sample collected from monitoring well MW‐4. 
Laboratory analytical results are summarized in Table 4. The laboratory analytical report and chain‐of‐
custody record are included in Appendix B.  

The MADEP EPH petroleum hydrocarbon fraction C9‐C18 aliphatics were detected in the groundwater sample 
collected from monitoring well MW‐4 at a concentration that did not exceed its respective 2L Groundwater 
Standard.  

A summary of historical groundwater analytical results is presented in Table 5. When compared to the 
historical results, the MADEP EPH concentration detected has decreased an order of magnitude since the 
September 2022 event and are significantly less, an order of magnitude or more, below the concentrations 
detected prior to 2016. The concentration of MADEP EPH carbon chains at MW‐4 have decreased to below 
groundwater standards. 
4. FREE PRODUCT RECOVERY 
A sump in the boiler room/basement of the school collects and removes groundwater from the 
basement.The water passes through an oil/water separator, and discharges to a field located in the 
northeast portion of the site, in the general vicinity of monitoring well MW‐2. Approximately 1,600 gallons 
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of fuel oil‐impacted water and/or free‐phase fuel oil was removed from the sump on three occasions between 
August 2010 and September 2010 during initial abatement activities. The occurrence of fuel oil in the sump 
has diminished with time. The oil water separator is currently maintained and serviced by Mountain 
Environmental Group, Inc. on a quarterly basis.  

A passive free product skimmer was installed in monitoring well MW‐4 on March 7, 2013. The passive 
skimmer installed in monitoring well MW‐4 did not contain free product during three consecutive 
monitoring events in 2019 and 2020. Per NCDEQ’s approval, the free product skimmer was removed from 
monitoring well MW‐4 in August 2020. Free product was not observed during the September 2022 
monitoring event. 

5. CONCLUSIONS AND RECOMMENDATIONS 
Groundwater monitoring results indicate a petroleum hydrocarbon fraction C9‐C18 aliphatics was detected 
above the laboratory method detection limit, but below its respective 2L Groundwater Standard.  

When compared to the historical results, the concentration of C9‐C18 aliphatics detected in the MW‐4 
groundwater sample in March 2023 has decreased an order of magnitude since the September 2022 event 
and is significantly less, an order of magnitude or more, below the concentration detected prior to 2016. The 
concentrations of MADEP EPH carbon chains at monitoring well MW‐4 have decreased to below groundwater 
standards. 

Monitoring well MW‐4 contained free product between 2011 and November 2016 and  early 2018 to 
February 2020. Free product was not observed in monitoring well MW‐4 during the September 2022 
monitoring event and has not been observed since February 2020. 

WSP recommends performance of semi‐annual groundwater monitoring of monitoring well MW‐4 for 
MADEP VPH and EPH, only. The next semi‐annual groundwater monitoring event should be conducted in 
August/September 2023.  

Report of Water Quality Monitoring (March 2023)  April 14, 2023 
Pisgah Elementary School 
WSP Project 6252‐16‐0231.09 

8
6. STATEMENTS AND CERTIFICATION 
1 Enter the date the monitoring report was due. 4/28/2023  Will this report be submitted 
after the established due date? 
YES 

NO 

X 
2 Was any required information from the above template missing from this report? YES NO 

X 
IF the answer to question #1 or# 2 is “YES”, please provide additional information in this cell to explain 
what was missing and why.  Delay in scheduling and performing work by several weeks. 
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) 

YES NO 

X 
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 

X 
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 

X 
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.)  

TABLES
TABLE 1WATER SUPPLY WELLS WITHIN 1,500-FOOT RADIUS OF SOURCEPisgah Elementary School1495 Pisgah HighwayCandler, North CarolinaWSP Project 6252-16-0231Well NumberBuncombe County PINWell Owner Property Address Owner AddressActive MunicipalWater AccountComments1 8695-08-6015 Kuykendall, O.L. & Carolyn M.100 Medford Branch Rd.,Candler NC 287153509 Amhurst Dr.,Gastonia NC 28056NoDug well - not in use2 8695-08-6015 Kuykendall, O.L. & Carolyn M.100 Medford Branch Rd.,Candler NC 287163509 Amhurst Dr.,Gastonia NC 28056NoDrilled well - used for drinking supply3 8695-08-7837White Rock Bapt Church91 Medford Branch Rd.,Candler NC 28717776 Upper Glady Fork Rd.,Candler NC 28715NoDrilled well - used for drinking supply4 8685-97-6760Fowler, David J.20 Medford Branch Rd.,Candler NC 2871872 Israel Rd., Candler NC 28715YesDrilled well - used for drinking supply5 8685-98-5132Pressley, Carol Jr. & Betty99999 Pisgah HwyCandler NC 287193 Medford Branch Rd.,Candler NC 28715NoDug well - not in use6 8685-97-1941 Loeffler, Benjamine & Rachel Ann1540 Pisgah HwyCandler NC 287201540 Pisgah Hwy Candler NC 28715YesDrilled well - used for drinking supply7 8685-88-6435 Davis, James Walter & Anita G1512 Pisgah HwyCandler NC 287211512 Pisgah Hwy Candler NC 28715NoDrilled well - used for drinking supply8 8685-98-6614 Messer, Bradley Charles & Sarina Shepard1525 Pisgah HwyCandler NC 287221525 Pisgah Hwy Candler NC 28715NoDug well - used for drinking supply9 8685-99-8192 Buncombe County Board Of Education1495 Pisgah HwyCandler NC 28723175 Bingham Rd., Asheville NC 28806YesDrilled well - not in use10 8685-99-0158 Childs, William Lester & Elizabeth Elaine8 Curtis Creek Rd.,Candler NC 287248 Curtis Creek Rd., Candler NC 28715NoWell details not verified11 8685-99-3122White Rock Bapt Church20 White Rock Church Rd.,Candler NC 28725776 Upper Glady Fork Rd., Candler NC 28715NoWell details not verified12 8685-98-0786Burgess, Shelly & Ryan11 Curtis Creek Rd.,Candler NC 28727385 Farnor Rd., Erwin TN 37650NoWell details not verified13 8695-08-6578The Primitive Quartet Llc1433 Pisgah HwyCandler NC 28728118 Israel Rd., Candler NC 28715NoWell details not verifiedN/A 8685-87-5954Courson, Franklin L.1544 Pisgah HwyCandler NC 287261544 Pisgah Hwy Candler NC 28715NoWell details not verified1. Information in Table 1 obtained from Limited Site Assessment Report, dated November 11, 2010, by Mountain Environmental Group, Inc. and from information provided by City of Asheville Water Department dated September 2, 2020Prepared By: RMC 3/28/23Checked by: GLH 3/28/23
TABLE 2MONITORING WELL CONSTRUCTION DETAILSPisgah Elementary School1495 Pisgah HighwayCandler, North Carolina WSP Project 6252-16-0231MW-1 Type II 9/15/2010 99.5611.8787.692"5 - 30 30MW-2 Type II 9/21/2010 90.985.8285.162"4 - 14 14MW-3 Type II 5/18/2011 98.5714.3384.242"7 - 27 27MW-4 Type II 6/6/2011 98.9611.1487.822" 10 - 30 30NOTES:1. TOC elevations obtained from Groundwater Monitoring Report, dated October 28, 2015, by Mountain Environmental Group, Inc., which indicates TOC elevation data were estimated with a topographic map and well locations.2. Depths to groundwater were recorded in feet below top of casing elevation on March 14, 2023.3. TOC = Top Of Casing.Prepared by: RMC 3/28/2023Checked by: GLH 3/28/2023Screened Interval (ft) Total Depth (ft)Well Diameter (inches)Well Well TypeDate InstalledTOC Elevation1 (ft)Estimated Groundwater ElevationDepth to Groundwater2
TABLE 3
HISTORICAL GROUNDWATER ELEVATIONS
Pisgah Elementary School
1495 Pisgah Highway
Candler, North Carolina
WSP Project 6252-16-0231
Well ID Date TOC Elevation
Depth to Free
Product
Depth
to Water1
Free Product
Thickness
Groundwater
Elevation2
10/1/2010 --12.56 --87.00
7/28/2011 --12.20 --87.36
12/29/2011 --11.49 --88.07
11/8/2012 --13.00 --86.56
6/27/2013 --11.70 --87.86
1/19/2015 --11.99 --87.57
7/30/2015 --13.01 --86.55
1/27/2016 --11.31 --88.25
9/28/2016 --12.87 --86.69
2/22/2016 --12.40 --87.16
7/18/2017 --12.40 --87.16
3/13/2018 --11.81 --87.75
8/24/2018 --11.97 --87.59
2/19/2019 --11.50 --88.06
7/30/2019 --11.64 --87.92
2/19/2020 --11.15 --88.41
8/26/2020 --11.34 --88.22
2/2/2021 --11.82 --87.74
8/16/2021 --12.00 --87.56
1/5/2022 --11.90 --87.66
9/8/2022 --11.92 --87.64
3/14/2023 --11.87 --87.69
MW-1 99.56
Page 1 of 4
TABLE 3
HISTORICAL GROUNDWATER ELEVATIONS
Pisgah Elementary School
1495 Pisgah Highway
Candler, North Carolina
WSP Project 6252-16-0231
Well ID Date TOC Elevation
Depth to Free
Product
Depth
to Water1
Free Product
Thickness
Groundwater
Elevation2
10/1/2010 --6.32 --84.66
7/28/2011 --6.67 --84.31
12/29/2011 --5.92 --85.06
6/27/2013 --6.35 --84.63
1/19/2015 --5.78 --85.20
7/30/2015 --7.03 --83.95
1/27/2016 --3.05 --87.93
9/28/2016 --6.02 --84.96
2/22/2016 --6.52 --84.46
7/18/2017 --6.75 --84.23
3/13/2018 --5.80 --85.18
8/24/2018 --7.57 --83.41
2/19/2019 --4.95 --86.03
7/30/2019 --5.73 --85.25
2/19/2020 --5.65 --85.33
2/2/2021 --6.35 --84.63
8/16/2021 --6.43 --84.55
1/5/2022 --5.37 --85.61
9/8/2022 --5.40 --85.58
3/14/2023 --5.82 --85.16
90.98MW-2
Page 2 of 4
TABLE 3
HISTORICAL GROUNDWATER ELEVATIONS
Pisgah Elementary School
1495 Pisgah Highway
Candler, North Carolina
WSP Project 6252-16-0231
Well ID Date TOC Elevation
Depth to Free
Product
Depth
to Water1
Free Product
Thickness
Groundwater
Elevation2
6/6/2011 --14.80 --83.77
7/28/2011 --14.18 --84.39
12/29/2011 --13.70 --84.87
11/8/2012 --15.32 --83.25
6/27/2013 --14.30 --84.27
1/19/2015 --13.23 --85.34
7/30/2015 --14.69 --83.61
1/27/2016 --13.19 --85.38
9/28/2016 --15.13 --83.44
2/22/2016 --14.95 --83.62
7/18/2017 --15.12 --83.45
3/13/2018 --14.25 --84.32
8/24/2018 --14.67 --83.90
2/19/2019 --13.75 --84.82
7/30/2019 --13.82 --84.75
2/19/2020 --13.10 --85.47
2/2/2021 --14.55 --84.02
8/16/2021 --14.61 --83.96
1/5/2022 --14.44 --84.13
9/8/2022 --14.15 --84.42
3/14/2023 --14.33 --84.24
98.57MW-3
Page 3 of 4
TABLE 3
HISTORICAL GROUNDWATER ELEVATIONS
Pisgah Elementary School
1495 Pisgah Highway
Candler, North Carolina
WSP Project 6252-16-0231
Well ID Date TOC Elevation
Depth to Free
Product
Depth
to Water1
Free Product
Thickness
Groundwater
Elevation2
6/6/2011 --11.99 --86.97
7/28/2011 11.49 11.52 0.03 87.46
12/29/2011 10.89 10.98 0.09 88.05
11/8/2012 12.26 13.24 0.98 86.50
6/27/2013
1/19/2015 10.87 11.27 0.40 88.01
7/30/2015 11.66 11.67 0.01 87.30
1/27/2016 11.00 11.20 0.25 87.96
9/28/2016 12.93 12.95 0.02 86.01
2/22/2016 --11.95 --87.01
7/18/2017 --12.05 --86.91
3/13/2018 11.73 11.75 0.02 87.23
8/24/2018 11.45 11.47 0.02 87.51
2/19/2019 10.98 11.00 0.02 87.98
7/30/2019 --10.93 --88.03
2/19/2020 --10.53 --88.43
8/26/2020 --10.73 --88.23
2/2/2021 --11.18 --87.78
8/16/2021 --11.31 --87.65
1/5/2022 --11.19 --87.77
9/8/2022 --11.23 --87.73
3/14/2023 --11.14 --87.82
NOTES:Prepared by: RMC 3/28/2023
1. Reported in feet below top of casing.Checked by: GLH 3/28/2023
2. Measured in feet relative to elevation from topographic map.
MW-4 98.96
3. Groundwater elevations were corrected by subtracting 80% of the free product thickness
from the depth to water.
no free product when skimmer removed
Page 4 of 4
TABLE 4SUMMARY OF LABORATORY ANALYTICAL RESULTS - MARCH 2023 Pisgah Elementary School1495 Pisgah HighwayCandler, North CarolinaWSP Project: 6252-16-0231C5-C8 aliphatics *C9-C18 aliphatics **C9-C22 aromatics C19-C36 aliphaticsGroundwater Standard 400 700 200 10,000MW-4 <100 102 B <100 <100Notes:1. Concentrations reported in micrograms per liter (g/L).2. <100 - Indicate analyte not detected at or above laboratory reporting limit.3. Groundwater Standard based on 15 North Carolina Administrative Code (NCAC) 02L.0202 Groundwater Classifications and Standards, dated April 1, 2022.4. Bold numbers indicate detected concentration is above the Groundwater Standard.5. B - The analyte was also detected in the laboratory method blank.5. MADEP - Massachusets Department of Environmental Protection; VPH - Volatile Petroleum Hydrocarbons; EPH - Extractable Petroleum Hydrocarbons 6. MADEP VPH and EPH Results calculated as indicated in North Carolina Department of Environmental Quality's UST Section's Assessment Guidelines, dated January 19, 2021 - Table 11 Worksheet for calculating MADEP Groundwater Results. (*) Calculated by adding C9-C12 Aliphatics and C9-C18 Aliphatics; (**) Calculated by adding C9-C10 Aromatics and C11-C22 AromaticsPrepared by: RMC 3/28/2023Checked by: GLH 3/28/2023
TABLE 5HISTORICAL ANALYTICAL RESULTSPisgah Elementary School1495 Pisgah HighwayCandler, North Carolina WSP Project: 6252-16-02311 600 600 500 6 300 60 200 5.6 400 700 200 10,00010/1/2010 ND ND ND 2.7 ND ND ND ND ND ND ND ND ND7/28/201111.95.8 2.6 75.712.8ND ND ND ND - 264 190.3 ND12/29/201122.76.0 7.2 116.519.9ND ND ND ND ND1,137 644ND11/8/2012 ND ND ND 1.1 ND ND ND ND ND ND ND ND ND6/27/2013 0.99 ND 1.8 18.3 ND ND ND ND ND ND2,706 1,915ND1/19/2015 ND ND ND 1.1 ND 9.3 8.1 9.1 ND -58,520 64,929 12,4007/30/2015 ND ND ND ND ND ND ND ND 5.6 ND20,721 8,308.24,7601/27/20161.02ND ND 3.56 1.87 ND ND ND ND ND1,359 7834019/28/2016 ND ND ND 3.53 2.40 ND ND ND ND ND735 5312022/22/2017 ND ND ND ND ND ND ND ND ND ND 122 ND ND7/18/2017 ND ND ND ND ND ND ND ND ND ND ND ND ND3/13/2018 ND ND ND ND 2.05 ND ND ND ND ND 3992331408/24/2018 ND ND ND ND 2.03 ND ND ND ND ND 129278ND2/18/2019 ND ND ND ND ND ND ND ND ND NA NA NA NA7/30/2019 ND ND ND ND ND ND ND ND ND NA NA NA NA2/19/2020 ND ND ND ND ND ND ND ND ND NA NA NA NA8/26/2020 NA NA NA NA NA NA NA NA NA ND1,339 4325342/2/2021 NA NA NA NA NA NA NA NA NA ND 156 139 ND8/16/2021 NA NA NA NA NA NA NA NA NA ND 101 ND ND1/5/2022 ND ND ND ND ND ND ND ND ND ND ND ND ND**C9-C22 aromaticsGroundwater StandardC5-C8 aliphaticsMW-1 C19-C36 aliphaticsbenzenetolueneethylbenzenexylenesnaphthalenefluorenephenanthrenebis-(2-ethylhexyl) phthalate*C9-C18 aliphaticspyrenePage 1 of 4
TABLE 5HISTORICAL ANALYTICAL RESULTSPisgah Elementary School1495 Pisgah HighwayCandler, North Carolina WSP Project: 6252-16-02311 600 600 500 6 300 60 200 5.6 400 700 200 10,000**C9-C22 aromaticsGroundwater StandardC5-C8 aliphatics C19-C36 aliphaticsbenzenetolueneethylbenzenexylenesnaphthalenefluorenephenanthrenebis-(2-ethylhexyl) phthalate*C9-C18 aliphaticspyrene10/1/2010 ND ND 1.1 34.4 ND ND ND ND ND ND1,230 288ND7/28/2011 ND ND ND ND 3.7 ND ND ND ND - 114 ND ND12/29/2011 ND ND ND ND ND ND ND ND ND ND ND ND ND11/8/2012 ND ND ND ND ND ND ND ND ND ND ND ND ND6/27/2013 ND ND ND ND ND ND ND ND ND ND ND ND ND1/19/2015 ND ND ND ND ND ND ND ND ND - ND ND ND7/30/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND1/27/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND9/28/2016 ND ND ND ND 1.08 ND ND ND ND ND ND ND ND2/22/2017 ND ND ND ND ND ND ND ND ND ND ND ND ND7/18/2017 ND ND ND ND ND ND ND ND ND ND ND ND ND3/13/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND8/24/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND2/18/2019 ND ND ND ND ND ND ND ND ND NA NA NA NA7/30/2019 ND ND ND ND ND ND ND ND ND NA NA NA NA2/19/2020 ND ND ND ND ND ND ND ND ND NA NA NA NA1/5/2022 ND ND ND ND ND ND ND ND ND ND ND ND NDMW-2Page 2 of 4
TABLE 5HISTORICAL ANALYTICAL RESULTSPisgah Elementary School1495 Pisgah HighwayCandler, North Carolina WSP Project: 6252-16-02311 600 600 500 6 300 60 200 5.6 400 700 200 10,000**C9-C22 aromaticsGroundwater StandardC5-C8 aliphatics C19-C36 aliphaticsbenzenetolueneethylbenzenexylenesnaphthalenefluorenephenanthrenebis-(2-ethylhexyl) phthalate*C9-C18 aliphaticspyrene6/6/2011 ND ND ND ND ND ND ND ND ND ND ND ND ND7/28/2011 ND ND ND ND ND ND ND ND ND - ND ND ND12/29/2011 ND ND ND ND ND ND ND ND ND ND ND ND ND11/8/2012 ND ND ND ND ND ND ND ND ND ND ND ND ND6/27/2013 ND ND ND ND ND ND ND ND ND ND ND ND ND1/19/2015 ND ND ND ND ND ND ND ND ND - ND ND ND7/30/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND1/27/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND9/28/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND2/22/2017 ND ND ND ND ND ND ND ND ND ND ND ND ND7/18/2017 ND ND ND ND ND ND ND ND ND ND ND ND ND3/13/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND8/24/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND2/18/2019 ND ND ND ND ND ND ND ND ND NA NA NA NA7/30/2019 ND ND ND ND ND ND ND ND ND NA NA NA NA2/19/2020 ND ND ND ND ND ND ND ND ND NA NA NA NA1/5/2022 ND ND ND ND ND ND ND ND ND ND ND ND NDMW-3Page 3 of 4
TABLE 5HISTORICAL ANALYTICAL RESULTSPisgah Elementary School1495 Pisgah HighwayCandler, North Carolina WSP Project: 6252-16-02311 600 600 500 6 300 60 200 5.6 400 700 200 10,000**C9-C22 aromaticsGroundwater StandardC5-C8 aliphatics C19-C36 aliphaticsbenzenetolueneethylbenzenexylenesnaphthalenefluorenephenanthrenebis-(2-ethylhexyl) phthalate*C9-C18 aliphaticspyrene6/6/20112.512.1 22.5 98.410.8ND ND ND ND ND27,740 10,290ND2/22/2017 ND ND ND ND ND ND ND ND ND ND 4232931487/18/2017 ND ND ND ND ND ND ND ND ND ND 306 156 1027/30/2019 ND ND ND ND ND 1.73 ND 3.02 ND NA NA NA NA2/19/2020 ND ND ND ND ND ND ND ND ND NA NA NA NA8/26/2020 NA NA NA NA NA NA NA NA NA ND1,060 5034852/2/2021 NA NA NA NA NA NA NA NA NA ND 7004272598/16/2021 NA NA NA NA NA NA NA NA NA ND729 3913691/5/2022 ND ND ND ND ND ND ND ND ND ND 102 ND 1109/8/2022 NA NA NA NA NA NA NA NA NA ND1,140 6855723/14/2023 NA NA NA NA NA NA NA NA NA ND 102 B ND NDNOTES:1. Concentrations reported in micrograms per liter g/L).2. ND - Indicate analyte not detected at or above laboratory reporting limit.3. Groundwater Standard based on 15 North Carolina Administrative Code (NCAC) 02L.0202 Groundwater Classifications and Standards, dated April 1, 2022.4. Bold numbers indicate detected concentration is above the Groundwater Standard5. MADEP - Massachusets Department of Environmental Protection; VPH - Volatile Petroleum Hydrocarbons; EPH - Extractable Petroleum Hydrocarbons 6. MADEP VPH and EPH Results calculated as indicated in North Carolina Department of Environmental Quality's UST Section's Assessment Guidelines, dated January 19, 2021 - Table 11 Worksheet for calculating MADEP Groundwater Results. (*) Calculated by adding C9 - C12 Aliphatics and C9-C18 Aliphatics (**) Calculated by adding C9-C10 Aromatics and C11-C22 Aromatics7. (-) Indicates WSP does not have record of laboratory analytical data from this date. 8. NA - Indicates constituent not analyzed. Prepared by: RMC 3/28/2023Checked by: GLH 3/28/2023MW-4Page 4 of 4

FIGURES
© OpenStreetMap (and)contributors, CC-BY-SASources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, OrdnanceSurvey, Esri Japan, METI, Esri China (Hong Kong), (c) OpenStreetMap contributors, and the GIS User CommunityFigure No.PREPARED BY: G. HUTCHINSMAP PROJECTION: NC State Plane (NAD83, feet)40500 1,000FeetAlthough every effort has been made to ensure the accuracy of information, errors and conditions originating from the physicalsources used to develop the database may be reflected in the data supplied. The requestor must be aware of data conditions andultimately bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collectionmethodology, currency of data, and other conditions specific to certain data. TITLE:1The map shown here has been created with all due and reasonable care and is strictly for use with WSP project 6252.16.0231. WSP assumes no liability, direct or indirect, whatsoever or any such third party or unintended use. TOPOGRAPHIC SITE MAPPISGAH ELEMENTARY1495 PISGAH HIGHWAYCANDLER, NORTH CAROLINACHECKED BY: M. WALLACEDATE: 4/6/2023DATE: 4/6/2023PROJECT NUMBER: 6252.16.0231Document Path: B:\projects\Buncombe County Schools\Pisgah Elementary\GIS\Figure 1 - Topo.mxdLegendSUBJECTPROPERTYSUBJECT PROPERTYCURTIS CREEK
© OpenStreetMap (and)contributors, CC-BY-SA@A@A@A@AMW-1MW-2MW-3MW-4Figure No.PREPARED BY: G. HUTCHINSMAP PROJECTION: NC State Plane (NAD83, feet)Ê02550FeetAlthough every effort has been made to ensure the accuracy of information, errors and conditions originating from the physicalsources used to develop the database may be reflected in the data supplied. The requestor must be aware of data conditions andultimately bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collectionmethodology, currency of data, and other conditions specific to certain data. TITLE:2The map shown here has been created with all due and reasonable care and is strictly for use with WSP project 6252.16.0231 WSP assumes no liability, direct or indirect, whatsoever or any such third party or unintended use. MONITORING WELL LOCATION MAPPISGAH ELEMENTARY1495 PISGAH HIGHWAYCANDLER, NORTH CAROLINACHECKED BY: M. WALLACEDATE: 4/6/2023DATE: 4/6/2023PROJECT NUMBER: 6225.16.0231Document Path: B:\projects\Buncombe County Schools\Pisgah Elementary\GIS\Figure 2 - Site Map.mxdLegendSUBJECTPROPERTY@AMONITORINGWELLLOCATION PISGAH HWYACTIVE FUEL OIL USTMW-1

APPENDIX A 

FIELD DATA RECORDS 

APPENDIX B 

LABORATORY REPORT 
AND CHAIN‐OF‐CUSTODY RECORD 
ANALYTICAL REPORT
March 22, 2023
WSP - Asheville, NC
Sample Delivery Group: L1595196
Samples Received:03/15/2023
Project Number:6252-16-0231.06
Description:Pisgah Elementary
Site:STF INCIDENT 28870
Report To:Rodney Clark
1308-C Patton Avenue
Asheville, NC 28806
Entire Report Reviewed By:
March 22, 2023
[Preliminary Report]
Heather J Wagner
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received.
Pace Analytical National
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
WSP - Asheville, NC 6252-16-0231.06 L1595196 03/22/23 08:11 1 of 12
March 22, 2023
Heather J Wagner
Project Manager
ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE:
WSP - Asheville, NC 6252-16-0231.06 L1595196 03/22/23 15:15 1 of 12
TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Sr: Sample Results 5
MW-4 L1595196-01 5
TRIP BLANK L1595196-02 6
Qc: Quality Control Summary 7
Volatile Petroleum Hydrocarbons by Method MADEPV 7
TPH by Method MADEPE 8
Gl: Glossary of Terms 10
Al: Accreditations & Locations 11
Sc: Sample Chain of Custody 12
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-4 L1595196-01 GW Rodney M. Clark 03/14/23 14:30 03/15/23 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Petroleum Hydrocarbons by Method MADEPV WG2025365 1 03/17/23 15:35 03/17/23 15:35 ACG Mt. Juliet, TN
TPH by Method MADEPE WG2025343 1 03/17/23 05:21 03/20/23 20:28 DMG Mt. Juliet, TN
TPH by Method MADEPE WG2025343 1 03/17/23 05:21 03/20/23 20:50 DMG Mt. Juliet, TN
Collected by Collected date/time Received date/time
TRIP BLANK L1595196-02 GW Rodney M. Clark 03/14/23 00:00 03/15/23 09:00
Method Batch Dilution Preparation Analysis Analyst Location
date/time date/time
Volatile Petroleum Hydrocarbons by Method MADEPV WG2025365 1 03/17/23 15:03 03/17/23 15:03 ACG Mt. Juliet, TN
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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CASE NARRATIVE
All sample aliquots were received at the correct temperature, in the proper containers, with the
appropriate preservatives, and within method specified holding times, unless qualified or notated within
the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples
have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control
are within established criteria except where addressed in this case narrative, a non-conformance form
or properly qualified within the sample results. By my digital signature below, I affirm to the best of my
knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the
quality of the data have been identified by the laboratory, and no information or data have been
knowingly withheld that would affect the quality of the data.
[Preliminary Report]
Heather J Wagner
Project Manager
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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Heather J Wagner
Project Manager
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SAMPLE RESULTS - 01
L1595196
MW-4
Collected date/time: 03/14/23 14:30
Volatile Petroleum Hydrocarbons by Method MADEPV
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Unadjusted C5-C8 Aliphatics ND 100 1 03/17/2023 15:35 WG2025365
Unadjusted C9-C12 Aliphatics ND 100 1 03/17/2023 15:35 WG2025365
Unadjusted C9-C10 Aromatics ND 100 1 03/17/2023 15:35 WG2025365
Total VPH ND 100 1 03/17/2023 15:35 WG2025365
(S) 2,5-Dibromotoluene(FID) 93.9 70.0-130 03/17/2023 15:35 WG2025365
(S) 2,5-Dibromotoluene(PID) 92.3 70.0-130 03/17/2023 15:35 WG2025365
TPH by Method MADEPE
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Unadjusted C9-C18 Aliphatics 102 B 100 1 03/20/2023 20:28 WG2025343
Unadjusted C19-C36 Aliphatics ND 100 1 03/20/2023 20:28 WG2025343
Unadjusted C11-C22 Aromatics ND 100 1 03/20/2023 20:50 WG2025343
Unadjusted Total Petroleum
Hydrocarbons 262 100 1 03/20/2023 20:50 WG2025343
(S) o-Terphenyl 66.8 40.0-140 03/20/2023 20:50 WG2025343
(S) 1-Chloro-octadecane 63.8 40.0-140 03/20/2023 20:28 WG2025343
(S) 2-Fluorobiphenyl 82.1 40.0-140 03/20/2023 20:50 WG2025343
(S) 2-Bromonaphthalene 90.3 40.0-140 03/20/2023 20:50 WG2025343
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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SAMPLE RESULTS - 02
L1595196
TRIP BLANK
Collected date/time: 03/14/23 00:00
Volatile Petroleum Hydrocarbons by Method MADEPV
Result Qualifier RDL Dilution Analysis Batch
Analyte ug/l ug/l date / time
Unadjusted C5-C8 Aliphatics ND 100 1 03/17/2023 15:03 WG2025365
Unadjusted C9-C12 Aliphatics ND 100 1 03/17/2023 15:03 WG2025365
Unadjusted C9-C10 Aromatics ND 100 1 03/17/2023 15:03 WG2025365
Total VPH ND 100 1 03/17/2023 15:03 WG2025365
(S) 2,5-Dibromotoluene(FID) 96.5 70.0-130 03/17/2023 15:03 WG2025365
(S) 2,5-Dibromotoluene(PID) 95.2 70.0-130 03/17/2023 15:03 WG2025365
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG2025365
Volatile Petroleum Hydrocarbons by Method MADEPV L1595196-01,02
Method Blank (MB)
(MB) R3903567-2 03/17/23 10:38
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Unadjusted C5-C8 Aliphatics U 33.3 100
Unadjusted C9-C12 Aliphatics U 33.3 100
Unadjusted C9-C10 Aromatics U 33.3 100
Total VPH U 33.3 100
(S) 2,5-Dibromotoluene(FID) 93.9 70.0-130
(S) 2,5-Dibromotoluene(PID) 92.4 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3903567-1 03/17/23 09:33 • (LCSD) R3903567-3 03/17/23 13:57
Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
Unadjusted C5-C8 Aliphatics 1200 1080 1080 90.0 90.0 70.0-130 0.000 25
Unadjusted C9-C12 Aliphatics 1400 1360 1340 97.1 95.7 70.0-130 1.48 25
Unadjusted C9-C10 Aromatics 200 214 216 107 108 70.0-130 0.930 25
Total VPH 2800 2650 2640 94.6 94.3 70.0-130 0.378 25
(S) 2,5-Dibromotoluene(FID) 98.9 91.5 70.0-130
(S) 2,5-Dibromotoluene(PID) 97.0 91.7 70.0-130
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG2025343
TPH by Method MADEPE L1595196-01
Method Blank (MB)
(MB) R3903306-1 03/20/23 14:13
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Unadjusted C9-C18 Aliphatics 38.7 J 33.3 100
Unadjusted C19-C36 Aliphatics U 33.3 100
(S) 1-Chloro-octadecane 87.8 40.0-140
Method Blank (MB)
(MB) R3903306-4 03/20/23 15:19
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Unadjusted C11-C22 Aromatics 38.7 J 33.3 100
(S) o-Terphenyl 85.4 40.0-140
(S) 2-Fluorobiphenyl 93.8 40.0-140
(S) 2-Bromonaphthalene 89.8 40.0-140
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3903306-2 03/20/23 14:35 • (LCSD) R3903306-3 03/20/23 14:57
Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
Unadjusted C9-C18 Aliphatics 600 380 388 63.3 64.7 40.0-140 2.08 25
Unadjusted C19-C36 Aliphatics 800 694 700 86.8 87.5 40.0-140 0.861 25
(S) 1-Chloro-octadecane 81.1 80.6 40.0-140
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3903306-5 03/20/23 15:41 • (LCSD) R3903306-10 03/20/23 16:03
Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l %%%%%
Unadjusted C11-C22 Aromatics 1700 1250 1290 73.5 75.9 40.0-140 3.15 25
(S) o-Terphenyl 76.1 76.5 40.0-140
(S) 2-Fluorobiphenyl 81.9 84.3 40.0-140
(S) 2-Bromonaphthalene 87.9 90.3 40.0-140
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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QUALITY CONTROL SUMMARYWG2025343
TPH by Method MADEPE L1595196-01
L1594121-06 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1594121-06 03/20/23 19:00 • (MS) R3903306-6 03/20/23 19:22 • (MSD) R3903306-7 03/20/23 19:44
Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l ug/l %%%%%
Unadjusted C9-C18 Aliphatics 600 ND 382 403 57.2 60.7 1 40.0-140 5.35 50
Unadjusted C19-C36 Aliphatics 800 ND 676 725 80.7 86.9 1 40.0-140 7.00 50
(S) 1-Chloro-octadecane 56.1 59.5 40.0-140
L1594121-06 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD)
(OS) L1594121-06 03/20/23 22:18 • (MS) R3903306-8 03/20/23 21:34 • (MSD) R3903306-9 03/20/23 21:56
Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits
Analyte ug/l ug/l ug/l ug/l %%%%%
Unadjusted C11-C22 Aromatics 1700 ND 1250 1270 71.4 72.6 1 40.0-140 1.59 50
(S) o-Terphenyl 72.9 73.1 40.0-140
(S) 2-Fluorobiphenyl 80.4 84.6 40.0-140
(S) 2-Bromonaphthalene 87.9 91.4 40.0-140
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not
intended as a comprehensive explanation, and if you have additional questions please contact your project representative.
Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name,
Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and
Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.
Abbreviations and Definitions
MDL Method Detection Limit.
ND Not detected at the Reporting Limit (or MDL where applicable).
RDL Reported Detection Limit.
Rec.Recovery.
RPD Relative Percent Difference.
SDG Sample Delivery Group.
(S)
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and
Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be
detected in all environmental media.
U Not detected at the Reporting Limit (or MDL where applicable).
Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes
reported.
Dilution
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the
standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the
laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the
result reported has already been corrected for this factor.
Limits
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal
for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or
duplicated within these ranges.
Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control
sample. The Original Sample may not be included within the reported SDG.
Qualifier
This column provides a letter and/or number designation that corresponds to additional information concerning the result
reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and
potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
Result
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was
no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL”
(Below Detectable Levels). The information in the results column should always be accompanied by either an MDL
(Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect
or report for this analyte.
Uncertainty
(Radiochemistry)Confidence level of 2 sigma.
Case Narrative (Cn)
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol
observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will
be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.
Quality Control
Summary (Qc)
This section of the report includes the results of the laboratory quality control analyses required by procedure or
analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not
being performed on your samples typically, but on laboratory generated material.
Sample Chain of
Custody (Sc)
This is the document created in the field when your samples were initially collected. This is used to verify the time and
date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This
chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the
samples from the time of collection until delivery to the laboratory for analysis.
Sample Results (Sr)
This section of your report will provide the results of all testing performed on your samples. These results are provided
by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for
each sample will provide the name and method number for the analysis reported.
Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and
times of preparation and/or analysis.
Qualifier Description
B The same analyte is found in the associated blank.
J The identification of the analyte is acceptable; the reported value is an estimate.
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122
Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹DW21704
Georgia NELAP North Carolina ³41
Georgia ¹923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶KY90010 South Carolina 84004002
Kentucky ²16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵LAB0152
Maryland 324 Utah TN000032021-11
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 110033
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 998093910
Montana CERT0086 Wyoming A2LA
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003
ACCREDITATIONS & LOCATIONS

¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable
* Not all certifications held by the laboratory are applicable to the results reported in the attached report.
* Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical.
1 Cp
2Tc
3Ss
4Cn
5Sr
6Qc
7Gl
8Al
9Sc
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