Denver • Durango • Hotchkiss • Idaho www.eroresources.com Consultants in Natural Resources and the Environment Phase II Limited Site Investigation 8800 Washington Street Thornton, Colorado Prepared for— City of Thornton 9500 Civic Center Drive Thornton, Colorado 80229 Prepared by— ERO Resources Corporation 1842 Clarkson Street Denver, Colorado 80218 (303) 830-1188 ERO Project #10197 October 20, 2021
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5.0 References .............................................................................................................................................. 7 Tables Table 1. Work performed and rationale. ..................................................................................................... 9
Figure 2. Groundwater Well Locations and Groundwater Flow ................................................................ 15
Figure 3. ALTA Survey with LSI Points ........................................................................................................ 16
Appendices Appendix A Borehole Logs
Appendix B Laboratory Analytical Reports
Appendix C CDWR Documentation
Appendix D Survey Documentation
ERO Project #10197 1 ERO Resources Corporation
Phase II Limited Site Investigation 8800 Washington Street Thornton, Colorado
October 20, 2021
1.0 Introduction, Purpose, and Background
The City of Thornton retained ERO Resources Corporation (ERO) to conduct a Phase II Limited Site
Investigation (LSI) for portions of the Thornton Shopping Center property at 8800 Washington Street in
Thornton, Colorado (hereafter referred to as the property). The property is shown on Figure 1. This
report describes the purpose, objectives, methods, and results of the LSI. The purpose of the
assessment was to characterize the likely north and west boundaries of elevated tetrachloroethylene
(PCE) in soil, soil vapor and groundwater with respect to known PCE releases on the property.
Based on numerous reports dating back to at least 2006, a release of PCE associated with former dry
cleaner operations within several units on the property has resulted in PCE soil, soil vapor, and
groundwater contamination at up to two general locations on the property (Freedom Environmental
Consultants, Inc. [FEC] 2006; LT Environmental, Inc. [ LTE] 2017a, 2017b). The primary release location is
in the general location of Unit 8866 and/or 8876. In addition, a smaller secondary is suspected
associated with the former dry cleaner at Unit 8948, however the characterization of these release
locations is beyond the scope of this LSI. In general, the primary source groundwater contamination
flows to the southeast with a minor component reporting to flow easterly to northeasterly, near the
Unit 8948 location. The objective of the north and west boundary characterization is to fill data gaps
within existing documentation for upgradient impacts these releases have had to soil, groundwater and
soil vapor.
1.1 Limitations, Exceptions, and Assumptions
This investigation was conducted in general accordance with the Scope of Work provided to the City of
Thornton dated June 18, 2021 and updated in July 2021. This LSI is limited to the investigations
conducted by ERO between July and September, 2021.
The opinions and conclusions in this report are based on publicly available information and data
obtained during the course of conducting the assessment described herein at the time this LSI was
conducted. Future events or changes in publicly available information may alter the findings, opinions,
and conclusions of this report. No other warranty, expressed or implied, is made as to the professional
opinions included in this report.
Phase II Limited Site Investigation 8800 Washington Street Thornton, Colorado
ERO Project #10197 2 ERO Resources Corporation
1.2 User Reliance
This report is for the use and benefit of the City of Thornton and is not to be used by others without the
prior written consent of the City of Thornton or ERO.
2.0 Work Performed and Rationale
As part of this LSI, ERO supervised the drilling of seven groundwater monitoring wells (TMW-A through
TMW-G) and six soil vapor points (TVP-A through TVP-F) followed by the sampling of all installed wells
and soil vapor points as well as sampling five existing site groundwater wells (MW-1, MW-8, MW-10,
MW-17, and MW-27). ERO collected soil, soil vapor, and groundwater samples as part of this
investigation with all samples submitted to an independent laboratory for analysis by U.S.
Environmental Protection Agency (EPA) methods.
The groundwater well locations are shown on Figure 2 with both groundwater wells and soil vapor
points placed on the current ALTA survey attached as Figure 3. Site environmental reports have
consistently indicated a southeasterly groundwater flow direction (LTE 2017a, 2017b) with a slight
northeasterly flow in the eastern portion (FEC 2006). Based on this information and to meet the
objective of this LSI, groundwater monitoring wells were installed in hydraulically upgradient locations
to the north and westerly of historical source areas.
2.1 Soil Boring and Well Installation
Prior to any subsurface work, ERO notified Colorado 811 (CO811) and other appropriate entities as
directed by CO811 to locate all public and private underground utilities near the proposed subsurface
investigation locations. In addition, ERO submitted the appropriate notification and construction
reports to the Colorado Department of Natural Resources, Division of Water Resources (CDWR) of the
intent to install groundwater monitoring wells on the property (Nos. MH-62203 and MH-62407;
Appendix C).
All wells were installed using hollow-stem auger drilling technology. During drilling, continuous soil
cores were obtained using a 5-foot-long continuous sampler placed in the lead drill rod to allow for a
continuous core of the subsurface at each location. Upon completion of each 5-foot interval, the
sampler was removed, leaving the outer drill augers in the boring. The sampler was then opened,
revealing the soil core. The soils were logged for lithology, staining, and olfactory indications of
contamination, and the core was screened with a photoionization detector (PID) with a 10.6-
electronvolt lamp capable of detecting volatile organic compounds (VOCs). The sampler was then
placed back in the lead drill rod and the process was repeated.
Upon reaching the total depth of drilling, the groundwater monitoring wells consisted of new, factory-
slotted (0.010-inch), 2-inch-diameter polyvinyl chloride (PVC) and plain casing. A filter pack consisting of
10-20 graded silica sand was placed in the borehole to 2 feet above the screen interval. The annular
space in the borehole was sealed above the sand pack with a hydrated bentonite seal. The wells were
Phase II Limited Site Investigation 8800 Washington Street Thornton, Colorado
ERO Project #10197 3 ERO Resources Corporation
completed with a vehicle-rated manhole cover set in concrete at the surface. Well completion and
boring logs are included in Appendix A.
The soil vapor points were installed in general accordance with ASTM D7663-12 – Standard Practice for
Active Soil Gas Sampling in the Vadose Zone for Vapor Intrusion Evaluations (ASTM 2012). Soil vapor
points that were collocated with groundwater wells (Table 1) were installed with an offset from the
associated groundwater well. At each vapor point location, ERO supervised the drill rig to drill to a
depth of 5 feet bgs. The soil vapor point construction consisted of new ¼-inch Teflon® tubing connected
to a stainless-steel vapor point set within 1 foot of clean silica sand filter packed at the bottom of the
boring. The annular spacing above the sand pack was filled with a granular bentonite seal hydrated in 6-
inch lifts to the surface. The vapor points were completed with a vehicle-rated manhole cover set in
concrete at the surface. Because the vapor points were immediately adjacent to the collocated well, a
separate completion log is not included.
Groundwater monitoring wells and soil vapor points were professionally surveyed by Flatiron Surveying,
Inc. to facilitate the development of a site-wide groundwater elevation map. Survey information is
included in Appendix D.
2.2 Soil Sampling
During the drilling of the soil borings, no PID readings were noted, and no visual or olfactory indications
of contamination were observed. For this reason, ERO collected soil samples at the anticipated
groundwater table and from the total depths of the soil borings. In addition, because historical soil data
from within the former dry cleaning facility indicated varying contaminant concentrations with depth at
small intervals (LTE 2017b), soils from wells TMW-B and TMW-C were sampled at 2-foot intervals
between the approximate top of the water table (10 feet bgs) and the base of the bore. Sample depths
are shown on the boring logs in Appendix A. All samples were collected directly from the drill core
samples, labeled and placed directly in laboratory provided, certified pre-cleaned glass sample jars,
placed in an iced cooler, and submitted to Pace National laboratory in Mt. Juliet, Tennessee under chain-
of-custody protocol. All soil samples were analyzed for total VOCs by EPA method 8260.
2.3 Groundwater Sampling
The monitoring wells installed during the investigation were developed after installation by surging the
wells with 2-inch polyethylene disposable bailers and purging at least five well casing volumes from each
well. Groundwater samples were collected from each well at least three days after development. Prior
to sampling, three well-casing volumes were purged from each well using dedicated, disposable
polyethylene bailers. Groundwater samples were placed in laboratory-provided sample vials, labeled,
placed in an iced cooler, and submitted to Pace National laboratory in Mt. Juliet, Tennessee under chain-
of-custody protocol. All groundwater samples were analyzed for total VOCs by EPA method 8260. Upon
completion of the July 23 groundwater sample collection, groundwater parameters were measured in
each well using a decontaminated YSI-556 multi-parameter probe to obtain temperature, specific
conductivity, dissolved oxygen, pH, and ORP measurements. Groundwater parameters are listed in
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ERO Project #10197 4 ERO Resources Corporation
Table 2. Groundwater from well MW-5 was not sampled because purged groundwater contained
significant black sludge, suspected to be associated with faulty or damaged well completion and unlikely
to represent site groundwater. Groundwater parameters were not able to be measured due to
damaged well casings in wells MW-5 and MW-8 and were not measured from the three wells “step-out”
wells sampled in August 2021 (MW-E, MW-F, and MW-G).
2.4 Soil Vapor Sampling
Soil vapor points were sampled on July 23, 2021 in general accordance with the procedures outlined in
the ASTM D7663-12, “Standard Practice for Active Soil Gas Sampling in the Vadose Zone for Vapor
Intrusion Evaluations” (ASTM 2012). Prior to sampling, ERO conducted the following activities for each
vapor point:
• Vapor points were tested for feasibility for collection of a soil vapor sample by inducing a vacuum and monitoring the vacuum level; and
• Leak testing was performed on each vapor point and sampling apparatus prior to sample collection. Leak testing consists of vacuum testing of sampling components and tracer gas testing using helium to test the integrity of the vapor point seal.
Upon confirmation of soil vapor point and sampling apparatus integrity, samples were collected in 1-
Liter Summa canisters with a 200-cubic-centimeter (cc)/minute maximum flow rate. The samples were
submitted to Pace National laboratory in Mt. Juliet, Tennessee under chain-of-custody protocol to be
analyzed for VOCs by EPA Method TO-15. Prior to and upon completion sample collection, soil gas
parameters were measured using a PID and a LandTec Gem5000 to measure methane, carbon
dioxide, oxygen, hydrogen sulfide, and carbon monoxide. The range of results are included in Table
5.
3.0 Presentation and Evaluation of Results
3.1 Subsurface Conditions
In general, the lithology consisted primarily of clays and sands overlying olive-brown, weathered
claystone and sandstone. No elevated PID readings, soil staining, odors, or indications of suspected
contamination were encountered during drilling.
Groundwater is encountered between 7.9 feet below ground surface (bgs) and 13.22 feet bgs when
measured prior to groundwater sampling on July 23, 2021. Groundwater depths were also measured
independent of a sampling event on August 29, 2021 with these static water levels presented in Table 2
and used for groundwater flow mapping shown on Figure 2. Groundwater elevations indicate a general
southeasterly groundwater flow direction, however an easterly component appears to be present in the
northern portion of the project area, north of the building.
Phase II Limited Site Investigation 8800 Washington Street Thornton, Colorado
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3.2 Soil Sample Results
No VOCs were detected in the soil samples collected except for very low 2-butanone and methyl tert-
butyl ether (MTBE) concentrations well below the applicable Environmental Protection Agency (EPA)
Regional Screening Levels (RSLs) for soil. Detected analytes are summarized in Table 3 with laboratory
sheets included in Appendix B.
3.3 Groundwater Sample Results
No VOCs were detected above current CBGWS in the groundwater samples collected from the
monitoring wells. Detected groundwater analytes are shown in Table 4 with laboratory analytical
reports are included in Appendix B.
Because PCE was initially detected in samples from TMW-C, TMW-D, and MW-8, additional wells were
installed further upgradient in a “stepped-out” fashion to delineate the extent of detectable PCE in
groundwater. No PCE or degradation products were detected in the stepped-out wells (Table 4; TMW-E,
TMW-F, and TMW-G).
In general, groundwater sample results are consistent with historical data and surveyed groundwater
flow directions. Low PCE concentrations in TMW-C are consistent with a “fringe” area bounding the
adjunct primary source area to the south of this location. Low PCE concentrations in wells MW-8 and
TMW-D are consistent with a suspected secondary source within the northeast portion of the property.
The gasoline additive MTBE was detected in groundwater from several wells at low concentrations with
those at MW-E exceeding the Colorado Department of Labor and Employment, Division of Oil and Public
Safety (CDLE/OPS) taste and odor threshold value for MTBE of 20 µg/L (CDLE/OPS 2021).
3.4 Soil Vapor Sample Results
Table 5 lists the numerous VOCs detected in soil vapor samples collected from the property with
laboratory analytical reports included in Appendix B. Table 5 compares detected results against the
current U.S. EPA Vapor Intrusion Screening Level (VISL) values for Subslab-Near Source Soil Gas for both
commercial and residential land uses (EPA 2021).
In general, PCE and TCE were detected in soil vapor from TVP-C at a concentrations above both
commercial and industrial VISLs. Chloroform was detected in all vapor points sampled with
concentrations at TVP-C, TVP-D, and TVP-E above both commercial and industrial VISLs. Benzene was
detected in TVP-E at concentrations above both commercial and industrial VISLs.
3.5 Data Evaluation
Soil and groundwater sample results were consistent with field observations of the media sampled and
locations with respect to conditions identified in the project area. ERO reviewed laboratory case
narratives for sampling results, quality control procedures used during this assessment, and laboratory
quality control samples. Based on this review, there is no reason to suspect the laboratory data
Phase II Limited Site Investigation 8800 Washington Street Thornton, Colorado
ERO Project #10197 6 ERO Resources Corporation
presented in this report are not representative of site conditions. For these reasons, it is ERO’s
professional opinion that the level of investigation was appropriate for the conditions anticipated and
encountered in the project area.
3.6 Investigation Derived Wastes
Investigation derived wastes (IDW) consisted of soil cuttings, decontamination water and well
development/purge water. All IDW was containerized at the place of generation in DOT-rated 55-gallon
steel drums. Each drum was numbers and labeled with a completed Hazardous Waste label in
accordance with Colorado Hazardous Waste Regulations and stored within the Thornton Shopping
Center Facility used for IDW storage by the site remediation contractor. Laboratory data from wells
TMW-B and TMW-C were used to characterize these soils because of the number of samples from each
location. Targeted soil samples from the remaining wells were used in conjunction with composite
waste characterization samples collected from each set of soil drums generated to characterize the
remaining soil IDW. Groundwater results were used to characterize the liquid IDW. Upon receipt of
laboratory data, IDW was determined by ERO to not contain a listed hazardous waste in accordance with
CDPHE regulations and guidance and the waste was reclassified as non-hazardous waste and relabeled
accordingly. The IDW is currently stored as non-hazardous waste awaiting submittal of request for
concurrence of the waste determination for disposal by CDPHE. Upon receipt, the waste will be
disposed at a permitted Subtitle D solid waste disposal facility under non-hazardous waste manifest.
4.0 Conclusions
As part of this LSI, ERO supervised the drilling of seven groundwater monitoring wells, six soil vapor
points, and a site-wide groundwater sampling of 12 groundwater monitoring wells. Based on the
information obtained during this investigation, ERO presents the following conclusions with respect to
the objectives of this LSI:
• Neither PCE nor associated degradation products were detected in the soil sampled from borings drilled as part of this investigation, thereby providing additional data delineating the northerly and westerly extent of expected soil contamination associated with historical dry cleaning releases;
• Neither PCE nor associated degradation products were detected in groundwater from the “step-out” wells on the north side of the investigation area or on the westerly portions of this investigation, thereby delineating the northerly and westerly extent of groundwater impacts associated with historical dry cleaning releases;
• Surveyed groundwater flow directions are consistent with earlier reported groundwater flow directions to the southeast and easterly; and
• Soil vapor impacts are present within the investigation area and should be accounted for within any development scenario.
Phase II Limited Site Investigation 8800 Washington Street Thornton, Colorado
ERO Project #10197 7 ERO Resources Corporation
5.0 References
American Society for Testing and Materials (ASTM). 2012. D7663-12, “Standard Practice for Active Soil Gas Sampling in the Vadose Zone for Vapor Intrusion Evaluations.” June 18.
Colorado Department of Labor and Employment, Division of Oil and Public Safety (CDLE/OPS). 2021. Risked Based Screening Levels. https://ops.colorado.gov/sites/ops/files/TierI%20RBSLs.pdf.
Colorado Department of Public Health and Environment (CDPHE). 2020. Regulation No. 41 – The Basic Standards for Groundwater, Table A-Groundwater Organic Chemical Standards, and Table 3-Agricultural Standards. June 30.
Freedom Environmental Consultants, Inc. (FEC). 2006. Phase II Environmental Site Assessment, Thornton Shopping Center Property, Northeast Corner of 88th Avenue and Washington Street, Thornton, Colorado. April 7.
LT Environmental, Inc. (LTE). 2017a. Limited Site Assessment Report – Revision 1, Thornton Shopping Center, Northeast Corner of East 88th Avenue and Washington Street, Thornton, Colorado. January 11.
LT Environmental, Inc. (LTE). 2017b. Second Corrective Action Plan Modification, Thornton Shopping Center, Northeast Corner of East 88th Avenue and Washington Street, Thornton, Colorado. November 29.
U.S. Environmental Protection Agency (EPA). 2021. Vapor Intrusion Screening Levels (VISL) for Commercial Target Sub-Slab and Near-source Soil Gas Concentration. (TCR=1E-06 or THQ=0.1). https://www.epa.gov/vaporintrusion/vapor-intrusion-screening-level-calculator. October.
Phase II Limited Site Investigation 8800 Washington Street Thornton, Colorado
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Tables
Phase II Limited Site Investigation 8800 Washington Street Thornton, Colorado
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Table 1. Work performed and rationale.
Feature Well/Boring Media Sampled1 Purpose
West Boundary
MW-17 GW Confirm existing groundwater data.
MW-27 GW Confirm existing groundwater data.
TMW-A, TVP-A Soil, GW Evaluate gap between MW-5 and MW-17
North Boundary
MW-01 GW Confirm existing groundwater data.
MW-08 GW Confirm existing groundwater data.
MW-10 GW Confirm existing groundwater data.
TMW-B Soil, GW Evaluate subsurface conditions at head of known PCE plume
TMW-C Soil, GW Evaluate subsurface conditions at head of known PCE plume
TMW-D Soil, GW Evaluate subsurface conditions between MW-04 and MW-08
TVP-B Soil, SV Evaluate soil vapor migration at TMW-B area
TVP-C Soil, SV Evaluate soil vapor migration at TMW-C area
TVP-D Soil, SV Evaluate soil vapor migration at MW-10 area
TVP-E Soil, SV Evaluate soil vapor migration at MW-01 area 1GW = Groundwater; SV = Soil vapor All analysis by EPA method 8260 (soil and aqueous) or TO-15 (air)
Phase II Limited Site Investigation 8800 Washington Street Thornton, Colorado
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Table 2. Groundwater measurement data.
Well Depth to water
(9/29/2021)
Groundwater Parameters (July 23, 2021)
Temperature Specific Conductance Dissolved Oxygen pH ORP
Units Feet btoc Celsius mS/cm mg/L SI mV
TMW-A 13.82 16.37 5775 1.29 6.86 101.3
TMW-B 10.17 16.38 5794 0.9 7.0 122.5
TMW-C 10.23 15.36 4861 1.04 6.95 103.2
TMW-D 8.93 14.67 3594 4.09 7.05 108.4
MW-01 7.53 16.84 2617 0.24 7.38 -98.7
MW-10 10.24 16.31 6390 3.21 6.91 112.9
MW-17 11.96 16.41 5779 0.97 6.89 104.7
MW-27 9.24 16.04 6320 0.47 7.04 109.2
MW-08 8.40 NM NM NM NM NM
TMW-E 8.02 NM NM NM NM NM
TMW-F 8.72 NM NM NM NM NM
TMW-G 8.59 NM NM NM NM NM
btoc = below top of casing
Phase II Limited Site Investigation 8800 Washington Street Thornton, Colorado
1,2,3-Trimethylbenzene NS NA NA NA NA NA NA NA <1.00 <1.00 0.23 J
Xylenes, Total 1,400 <3.00 <3.00 <3.00 <3.00 <3.00 <3.00 <3.00 0.45 J 0.514 J 0.725 J 1Colroado Department of Public Health and Environment Regulation No. 41 – Colorado Basic Standards for Groundwater (CDPHE 2020) 2Concentration exceeds the Colorado Division of Labor and Employment (CDLE) Division of Oil and Public Safety (OPS) taste and odor threshold value of 20 µg/L (CDLE/OPS 2021). NS – No Standard; NA = Not Analyzed Shaded = Analyte detected Bold= Analyte exceeds CBGWS “<” = Analyte not detected above noted laboratory detection limit. “J” = Analyte detected at estimated concentration below laboratory reporting limit but above detection limit
Note: No VOCs were detected in groundwater samples from MW-1 and MW-27
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Table 5. Detected soil vapor results (VOCs in µg/m3).
Section 23, T2S, R68W; 6th PMUTM NAD 83: Zone 13N; 502054mE, 4411959mNLongitude 104.975982°W, Latitude 39.857657°NUSGS Commerce City, CO QuadrangleAdams County, Colorado ±0 2,0001,000
Phase II Limited Site Investigation 8800 Washington Street Thornton, Colorado
ERO Project #10197 ERO Resources Corporation
Appendix B Laboratory Analytical Reports
ANALYTICAL REPORTJuly 21 , 2021
Revised Report
ERO Resources
Sample Delivery Group: L1377626
Samples Received: 07/13/2021
Project Number: 10197
Description: Thronton SC
Report To: Jack Denman
1842 Clarkson Street
Denver, CO 80218
Entire Report Reviewed By:
July 21 , 2021
[Preliminary Report]
Chris WardPro ject 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 National12065 Lebanon Rd Mount Ju l ie t , TN 37122 615 -758-5858 800-767-5859 www.pacenat iona l . com
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July 22, 2021
Chris WardPro ject Manager
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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 withinthe report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental sampleshave 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]
Chris WardPro jec t Manager
Report Revision History
Level II Report - Version 1: 07/20/21 15:44
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Methylene Chloride U 0.00664 0.0250 1 07/15/2021 10:28 WG1705462
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250 1 07/15/2021 10:28 WG1705462
Methyl tert-butyl ether U 0.000350 0.00100 1 07/15/2021 10:28 WG1705462
Naphthalene U 0.00488 0.0125 1 07/15/2021 10:28 WG1705462
n-Propylbenzene U 0.000950 0.00500 1 07/15/2021 10:28 WG1705462
Styrene U 0.000229 0.0125 1 07/15/2021 10:28 WG1705462
1,1,1,2-Tetrachloroethane U 0.000948 0.00250 1 07/15/2021 10:28 WG1705462
1,1,2,2-Tetrachloroethane U 0.000695 0.00250 1 07/15/2021 10:28 WG1705462
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 1 07/15/2021 10:28 WG1705462
Tetrachloroethene U 0.000896 0.00250 1 07/15/2021 10:28 WG1705462
Toluene U 0.00130 0.00500 1 07/15/2021 10:28 WG1705462
1,2,3-Trichlorobenzene U 0.00733 0.0125 1 07/15/2021 10:28 WG1705462
1,2,4-Trichlorobenzene U 0.00440 0.0125 1 07/15/2021 10:28 WG1705462
1,1,1-Trichloroethane U 0.000923 0.00250 1 07/15/2021 10:28 WG1705462
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SAMPLE RESULTS - 08L 1 3 7 7 6 2 6
MW-C 18C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 0 8 : 3 8
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
1,1,2-Trichloroethane U 0.000597 0.00250 1 07/15/2021 10:28 WG1705462
Trichloroethene U 0.000584 0.00100 1 07/15/2021 10:28 WG1705462
Trichlorofluoromethane U 0.000827 0.00250 1 07/15/2021 10:28 WG1705462
1,2,3-Trichloropropane U 0.00162 0.0125 1 07/15/2021 10:28 WG1705462
1,2,4-Trimethylbenzene U 0.00158 0.00500 1 07/15/2021 10:28 WG1705462
1,2,3-Trimethylbenzene U J4 0.00158 0.00500 1 07/15/2021 10:28 WG1705462
1,3,5-Trimethylbenzene U 0.00200 0.00500 1 07/15/2021 10:28 WG1705462
Vinyl chloride U 0.00116 0.00250 1 07/15/2021 10:28 WG1705462
Xylenes, Total U 0.000880 0.00650 1 07/15/2021 10:28 WG1705462
(S) Toluene-d8 108 75.0-131 07/15/2021 10:28 WG1705462
(S) 4-Bromofluorobenzene 94.8 67.0-138 07/15/2021 10:28 WG1705462
(S) 1,2-Dichloroethane-d4 111 70.0-130 07/15/2021 10:28 WG1705462
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SAMPLE RESULTS - 09L 1 3 7 7 6 2 6
MW-C 22C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 0 8 : 5 5
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
Acetone U 0.0365 0.0500 1 07/15/2021 21:07 WG1705839
Acrylonitrile U 0.00361 0.0125 1 07/15/2021 21:07 WG1705839
Benzene U 0.000467 0.00100 1 07/15/2021 21:07 WG1705839
Bromobenzene U 0.000900 0.0125 1 07/15/2021 21:07 WG1705839
Bromodichloromethane U 0.000725 0.00250 1 07/15/2021 21:07 WG1705839
Bromoform U 0.00117 0.0250 1 07/15/2021 21:07 WG1705839
Bromomethane U 0.00197 0.0125 1 07/15/2021 21:07 WG1705839
n-Butylbenzene U 0.00525 0.0125 1 07/15/2021 21:07 WG1705839
sec-Butylbenzene U 0.00288 0.0125 1 07/15/2021 21:07 WG1705839
tert-Butylbenzene U 0.00195 0.00500 1 07/15/2021 21:07 WG1705839
Carbon tetrachloride U 0.000898 0.00500 1 07/15/2021 21:07 WG1705839
Chlorobenzene U 0.000210 0.00250 1 07/15/2021 21:07 WG1705839
Chlorodibromomethane U 0.000612 0.00250 1 07/15/2021 21:07 WG1705839
Chloroethane U 0.00170 0.00500 1 07/15/2021 21:07 WG1705839
Chloroform U 0.00103 0.00250 1 07/15/2021 21:07 WG1705839
Chloromethane U 0.00435 0.0125 1 07/15/2021 21:07 WG1705839
2-Chlorotoluene U 0.000865 0.00250 1 07/15/2021 21:07 WG1705839
4-Chlorotoluene U 0.000450 0.00500 1 07/15/2021 21:07 WG1705839
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250 1 07/15/2021 21:07 WG1705839
1,2-Dibromoethane U 0.000648 0.00250 1 07/15/2021 21:07 WG1705839
Dibromomethane U 0.000750 0.00500 1 07/15/2021 21:07 WG1705839
1,2-Dichlorobenzene U 0.000425 0.00500 1 07/15/2021 21:07 WG1705839
1,3-Dichlorobenzene U 0.000600 0.00500 1 07/15/2021 21:07 WG1705839
1,4-Dichlorobenzene U 0.000700 0.00500 1 07/15/2021 21:07 WG1705839
Dichlorodifluoromethane U 0.00161 0.00250 1 07/15/2021 21:07 WG1705839
1,1-Dichloroethane U 0.000491 0.00250 1 07/15/2021 21:07 WG1705839
1,2-Dichloroethane U 0.000649 0.00250 1 07/15/2021 21:07 WG1705839
1,1-Dichloroethene U 0.000606 0.00250 1 07/15/2021 21:07 WG1705839
cis-1,2-Dichloroethene U 0.000734 0.00250 1 07/15/2021 21:07 WG1705839
trans-1,2-Dichloroethene U 0.00104 0.00500 1 07/15/2021 21:07 WG1705839
1,2-Dichloropropane U 0.00142 0.00500 1 07/15/2021 21:07 WG1705839
1,1-Dichloropropene U 0.000809 0.00250 1 07/15/2021 21:07 WG1705839
1,3-Dichloropropane U 0.000501 0.00500 1 07/15/2021 21:07 WG1705839
cis-1,3-Dichloropropene U 0.000757 0.00250 1 07/15/2021 21:07 WG1705839
trans-1,3-Dichloropropene U 0.00114 0.00500 1 07/15/2021 21:07 WG1705839
2,2-Dichloropropane U 0.00138 0.00250 1 07/15/2021 21:07 WG1705839
Di-isopropyl ether U 0.000410 0.00100 1 07/15/2021 21:07 WG1705839
Ethylbenzene U 0.000737 0.00250 1 07/15/2021 21:07 WG1705839
Hexachloro-1,3-butadiene U 0.00600 0.0250 1 07/15/2021 21:07 WG1705839
Isopropylbenzene U 0.000425 0.00250 1 07/15/2021 21:07 WG1705839
p-Isopropyltoluene U 0.00255 0.00500 1 07/15/2021 21:07 WG1705839
2-Butanone (MEK) U 0.0635 0.100 1 07/15/2021 21:07 WG1705839
Methylene Chloride U 0.00664 0.0250 1 07/15/2021 21:07 WG1705839
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250 1 07/15/2021 21:07 WG1705839
Methyl tert-butyl ether U 0.000350 0.00100 1 07/15/2021 21:07 WG1705839
Naphthalene U 0.00488 0.0125 1 07/15/2021 21:07 WG1705839
n-Propylbenzene U 0.000950 0.00500 1 07/15/2021 21:07 WG1705839
Styrene U 0.000229 0.0125 1 07/15/2021 21:07 WG1705839
1,1,1,2-Tetrachloroethane U 0.000948 0.00250 1 07/15/2021 21:07 WG1705839
1,1,2,2-Tetrachloroethane U 0.000695 0.00250 1 07/15/2021 21:07 WG1705839
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 1 07/15/2021 21:07 WG1705839
Tetrachloroethene U 0.000896 0.00250 1 07/15/2021 21:07 WG1705839
Toluene U 0.00130 0.00500 1 07/15/2021 21:07 WG1705839
1,2,3-Trichlorobenzene U 0.00733 0.0125 1 07/15/2021 21:07 WG1705839
1,2,4-Trichlorobenzene U 0.00440 0.0125 1 07/15/2021 21:07 WG1705839
1,1,1-Trichloroethane U 0.000923 0.00250 1 07/15/2021 21:07 WG1705839
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
8
Al
9
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/21/21 17:36 23 of 69
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/22/21 10:11 23 of 69
SAMPLE RESULTS - 09L 1 3 7 7 6 2 6
MW-C 22C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 0 8 : 5 5
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
1,1,2-Trichloroethane U 0.000597 0.00250 1 07/15/2021 21:07 WG1705839
Trichloroethene U 0.000584 0.00100 1 07/15/2021 21:07 WG1705839
Trichlorofluoromethane U 0.000827 0.00250 1 07/15/2021 21:07 WG1705839
1,2,3-Trichloropropane U 0.00162 0.0125 1 07/15/2021 21:07 WG1705839
1,2,4-Trimethylbenzene U 0.00158 0.00500 1 07/15/2021 21:07 WG1705839
1,2,3-Trimethylbenzene U 0.00158 0.00500 1 07/15/2021 21:07 WG1705839
1,3,5-Trimethylbenzene U 0.00200 0.00500 1 07/15/2021 21:07 WG1705839
Vinyl chloride U 0.00116 0.00250 1 07/15/2021 21:07 WG1705839
Xylenes, Total U 0.000880 0.00650 1 07/15/2021 21:07 WG1705839
(S) Toluene-d8 108 75.0-131 07/15/2021 21:07 WG1705839
(S) 4-Bromofluorobenzene 103 67.0-138 07/15/2021 21:07 WG1705839
(S) 1,2-Dichloroethane-d4 77.2 70.0-130 07/15/2021 21:07 WG1705839
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
8
Al
9
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/21/21 17:36 24 of 69
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/22/21 10:11 24 of 69
SAMPLE RESULTS - 10L 1 3 7 7 6 2 6
MW-C 25C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 0 9 : 1 5
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
Acetone U J3 0.0365 0.0500 1 07/15/2021 12:17 WG1705859
Acrylonitrile U J3 0.00361 0.0125 1 07/15/2021 12:17 WG1705859
Benzene U 0.000467 0.00100 1 07/15/2021 12:17 WG1705859
Bromobenzene U 0.000900 0.0125 1 07/15/2021 12:17 WG1705859
Bromodichloromethane U 0.000725 0.00250 1 07/15/2021 12:17 WG1705859
Bromoform U 0.00117 0.0250 1 07/15/2021 12:17 WG1705859
Bromomethane U 0.00197 0.0125 1 07/15/2021 12:17 WG1705859
n-Butylbenzene U 0.00525 0.0125 1 07/15/2021 12:17 WG1705859
sec-Butylbenzene U 0.00288 0.0125 1 07/15/2021 12:17 WG1705859
tert-Butylbenzene U 0.00195 0.00500 1 07/15/2021 12:17 WG1705859
Carbon tetrachloride U 0.000898 0.00500 1 07/15/2021 12:17 WG1705859
Chlorobenzene U 0.000210 0.00250 1 07/15/2021 12:17 WG1705859
Chlorodibromomethane U 0.000612 0.00250 1 07/15/2021 12:17 WG1705859
Chloroethane U 0.00170 0.00500 1 07/15/2021 12:17 WG1705859
Chloroform U 0.00103 0.00250 1 07/15/2021 12:17 WG1705859
Chloromethane U 0.00435 0.0125 1 07/15/2021 12:17 WG1705859
2-Chlorotoluene U 0.000865 0.00250 1 07/15/2021 12:17 WG1705859
4-Chlorotoluene U 0.000450 0.00500 1 07/15/2021 12:17 WG1705859
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250 1 07/15/2021 12:17 WG1705859
1,2-Dibromoethane U 0.000648 0.00250 1 07/15/2021 12:17 WG1705859
Dibromomethane U 0.000750 0.00500 1 07/15/2021 12:17 WG1705859
1,2-Dichlorobenzene U 0.000425 0.00500 1 07/15/2021 12:17 WG1705859
1,3-Dichlorobenzene U 0.000600 0.00500 1 07/15/2021 12:17 WG1705859
1,4-Dichlorobenzene U 0.000700 0.00500 1 07/15/2021 12:17 WG1705859
Dichlorodifluoromethane U 0.00161 0.00250 1 07/15/2021 12:17 WG1705859
1,1-Dichloroethane U 0.000491 0.00250 1 07/15/2021 12:17 WG1705859
1,2-Dichloroethane U 0.000649 0.00250 1 07/15/2021 12:17 WG1705859
1,1-Dichloroethene U 0.000606 0.00250 1 07/15/2021 12:17 WG1705859
cis-1,2-Dichloroethene U 0.000734 0.00250 1 07/15/2021 12:17 WG1705859
trans-1,2-Dichloroethene U 0.00104 0.00500 1 07/15/2021 12:17 WG1705859
1,2-Dichloropropane U 0.00142 0.00500 1 07/15/2021 12:17 WG1705859
1,1-Dichloropropene U 0.000809 0.00250 1 07/15/2021 12:17 WG1705859
1,3-Dichloropropane U 0.000501 0.00500 1 07/15/2021 12:17 WG1705859
cis-1,3-Dichloropropene U 0.000757 0.00250 1 07/15/2021 12:17 WG1705859
trans-1,3-Dichloropropene U 0.00114 0.00500 1 07/15/2021 12:17 WG1705859
2,2-Dichloropropane U 0.00138 0.00250 1 07/15/2021 12:17 WG1705859
Di-isopropyl ether U 0.000410 0.00100 1 07/15/2021 12:17 WG1705859
Ethylbenzene U 0.000737 0.00250 1 07/15/2021 12:17 WG1705859
Hexachloro-1,3-butadiene U 0.00600 0.0250 1 07/15/2021 12:17 WG1705859
Isopropylbenzene U 0.000425 0.00250 1 07/15/2021 12:17 WG1705859
p-Isopropyltoluene U 0.00255 0.00500 1 07/15/2021 12:17 WG1705859
2-Butanone (MEK) U 0.0635 0.100 1 07/15/2021 12:17 WG1705859
Methylene Chloride U 0.00664 0.0250 1 07/15/2021 12:17 WG1705859
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250 1 07/15/2021 12:17 WG1705859
Methyl tert-butyl ether U 0.000350 0.00100 1 07/15/2021 12:17 WG1705859
Naphthalene U J3 0.00488 0.0125 1 07/15/2021 12:17 WG1705859
n-Propylbenzene U 0.000950 0.00500 1 07/15/2021 12:17 WG1705859
Styrene U 0.000229 0.0125 1 07/15/2021 12:17 WG1705859
1,1,1,2-Tetrachloroethane U 0.000948 0.00250 1 07/15/2021 12:17 WG1705859
1,1,2,2-Tetrachloroethane U 0.000695 0.00250 1 07/15/2021 12:17 WG1705859
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 1 07/15/2021 12:17 WG1705859
Tetrachloroethene U 0.000896 0.00250 1 07/15/2021 12:17 WG1705859
Toluene U 0.00130 0.00500 1 07/15/2021 12:17 WG1705859
1,2,3-Trichlorobenzene U J3 0.00733 0.0125 1 07/15/2021 12:17 WG1705859
1,2,4-Trichlorobenzene U J3 0.00440 0.0125 1 07/15/2021 12:17 WG1705859
1,1,1-Trichloroethane U 0.000923 0.00250 1 07/15/2021 12:17 WG1705859
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
8
Al
9
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/21/21 17:36 25 of 69
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/22/21 10:11 25 of 69
SAMPLE RESULTS - 10L 1 3 7 7 6 2 6
MW-C 25C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 0 9 : 1 5
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
1,1,2-Trichloroethane U 0.000597 0.00250 1 07/15/2021 12:17 WG1705859
Trichloroethene U 0.000584 0.00100 1 07/15/2021 12:17 WG1705859
Trichlorofluoromethane U 0.000827 0.00250 1 07/15/2021 12:17 WG1705859
1,2,3-Trichloropropane U 0.00162 0.0125 1 07/15/2021 12:17 WG1705859
1,2,4-Trimethylbenzene U 0.00158 0.00500 1 07/15/2021 12:17 WG1705859
1,2,3-Trimethylbenzene U J4 0.00158 0.00500 1 07/15/2021 12:17 WG1705859
1,3,5-Trimethylbenzene U 0.00200 0.00500 1 07/15/2021 12:17 WG1705859
Vinyl chloride U 0.00116 0.00250 1 07/15/2021 12:17 WG1705859
Xylenes, Total U 0.000880 0.00650 1 07/15/2021 12:17 WG1705859
(S) Toluene-d8 103 75.0-131 07/15/2021 12:17 WG1705859
(S) 4-Bromofluorobenzene 97.4 67.0-138 07/15/2021 12:17 WG1705859
(S) 1,2-Dichloroethane-d4 102 70.0-130 07/15/2021 12:17 WG1705859
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
8
Al
9
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/21/21 17:36 26 of 69
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/22/21 10:11 26 of 69
SAMPLE RESULTS - 11L 1 3 7 7 6 2 6
MW-B 10C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 0 : 5 2
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
Acetone U J3 0.0365 0.0500 1 07/15/2021 12:36 WG1705859
Acrylonitrile U J3 0.00361 0.0125 1 07/15/2021 12:36 WG1705859
Benzene U 0.000467 0.00100 1 07/15/2021 12:36 WG1705859
Bromobenzene U 0.000900 0.0125 1 07/15/2021 12:36 WG1705859
Bromodichloromethane U 0.000725 0.00250 1 07/15/2021 12:36 WG1705859
Bromoform U 0.00117 0.0250 1 07/15/2021 12:36 WG1705859
Bromomethane U 0.00197 0.0125 1 07/15/2021 12:36 WG1705859
n-Butylbenzene U 0.00525 0.0125 1 07/15/2021 12:36 WG1705859
sec-Butylbenzene U 0.00288 0.0125 1 07/15/2021 12:36 WG1705859
tert-Butylbenzene U 0.00195 0.00500 1 07/15/2021 12:36 WG1705859
Carbon tetrachloride U 0.000898 0.00500 1 07/15/2021 12:36 WG1705859
Chlorobenzene U 0.000210 0.00250 1 07/15/2021 12:36 WG1705859
Chlorodibromomethane U 0.000612 0.00250 1 07/15/2021 12:36 WG1705859
Chloroethane U 0.00170 0.00500 1 07/15/2021 12:36 WG1705859
Chloroform U 0.00103 0.00250 1 07/15/2021 12:36 WG1705859
Chloromethane U 0.00435 0.0125 1 07/15/2021 12:36 WG1705859
2-Chlorotoluene U 0.000865 0.00250 1 07/15/2021 12:36 WG1705859
4-Chlorotoluene U 0.000450 0.00500 1 07/15/2021 12:36 WG1705859
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250 1 07/15/2021 12:36 WG1705859
1,2-Dibromoethane U 0.000648 0.00250 1 07/15/2021 12:36 WG1705859
Dibromomethane U 0.000750 0.00500 1 07/15/2021 12:36 WG1705859
1,2-Dichlorobenzene U 0.000425 0.00500 1 07/15/2021 12:36 WG1705859
1,3-Dichlorobenzene U 0.000600 0.00500 1 07/15/2021 12:36 WG1705859
1,4-Dichlorobenzene U 0.000700 0.00500 1 07/15/2021 12:36 WG1705859
Dichlorodifluoromethane U 0.00161 0.00250 1 07/15/2021 12:36 WG1705859
1,1-Dichloroethane U 0.000491 0.00250 1 07/15/2021 12:36 WG1705859
1,2-Dichloroethane U 0.000649 0.00250 1 07/15/2021 12:36 WG1705859
1,1-Dichloroethene U 0.000606 0.00250 1 07/15/2021 12:36 WG1705859
cis-1,2-Dichloroethene U 0.000734 0.00250 1 07/15/2021 12:36 WG1705859
trans-1,2-Dichloroethene U 0.00104 0.00500 1 07/15/2021 12:36 WG1705859
1,2-Dichloropropane U 0.00142 0.00500 1 07/15/2021 12:36 WG1705859
1,1-Dichloropropene U 0.000809 0.00250 1 07/15/2021 12:36 WG1705859
1,3-Dichloropropane U 0.000501 0.00500 1 07/15/2021 12:36 WG1705859
cis-1,3-Dichloropropene U 0.000757 0.00250 1 07/15/2021 12:36 WG1705859
trans-1,3-Dichloropropene U 0.00114 0.00500 1 07/15/2021 12:36 WG1705859
2,2-Dichloropropane U 0.00138 0.00250 1 07/15/2021 12:36 WG1705859
Di-isopropyl ether U 0.000410 0.00100 1 07/15/2021 12:36 WG1705859
Ethylbenzene U 0.000737 0.00250 1 07/15/2021 12:36 WG1705859
Hexachloro-1,3-butadiene U 0.00600 0.0250 1 07/15/2021 12:36 WG1705859
Isopropylbenzene U 0.000425 0.00250 1 07/15/2021 12:36 WG1705859
p-Isopropyltoluene U 0.00255 0.00500 1 07/15/2021 12:36 WG1705859
2-Butanone (MEK) U 0.0635 0.100 1 07/15/2021 12:36 WG1705859
Methylene Chloride U 0.00664 0.0250 1 07/15/2021 12:36 WG1705859
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250 1 07/15/2021 12:36 WG1705859
Methyl tert-butyl ether U 0.000350 0.00100 1 07/15/2021 12:36 WG1705859
Naphthalene U J3 0.00488 0.0125 1 07/15/2021 12:36 WG1705859
n-Propylbenzene U 0.000950 0.00500 1 07/15/2021 12:36 WG1705859
Styrene U 0.000229 0.0125 1 07/15/2021 12:36 WG1705859
1,1,1,2-Tetrachloroethane U 0.000948 0.00250 1 07/15/2021 12:36 WG1705859
1,1,2,2-Tetrachloroethane U 0.000695 0.00250 1 07/15/2021 12:36 WG1705859
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 1 07/15/2021 12:36 WG1705859
Tetrachloroethene U 0.000896 0.00250 1 07/15/2021 12:36 WG1705859
Toluene U 0.00130 0.00500 1 07/15/2021 12:36 WG1705859
1,2,3-Trichlorobenzene U J3 0.00733 0.0125 1 07/15/2021 12:36 WG1705859
1,2,4-Trichlorobenzene U J3 0.00440 0.0125 1 07/15/2021 12:36 WG1705859
1,1,1-Trichloroethane U 0.000923 0.00250 1 07/15/2021 12:36 WG1705859
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
8
Al
9
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/21/21 17:36 27 of 69
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/22/21 10:11 27 of 69
SAMPLE RESULTS - 11L 1 3 7 7 6 2 6
MW-B 10C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 0 : 5 2
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
1,1,2-Trichloroethane U 0.000597 0.00250 1 07/15/2021 12:36 WG1705859
Trichloroethene U 0.000584 0.00100 1 07/15/2021 12:36 WG1705859
Trichlorofluoromethane U 0.000827 0.00250 1 07/15/2021 12:36 WG1705859
1,2,3-Trichloropropane U 0.00162 0.0125 1 07/15/2021 12:36 WG1705859
1,2,4-Trimethylbenzene U 0.00158 0.00500 1 07/15/2021 12:36 WG1705859
1,2,3-Trimethylbenzene U J4 0.00158 0.00500 1 07/15/2021 12:36 WG1705859
1,3,5-Trimethylbenzene U 0.00200 0.00500 1 07/15/2021 12:36 WG1705859
Vinyl chloride U 0.00116 0.00250 1 07/15/2021 12:36 WG1705859
Xylenes, Total U 0.000880 0.00650 1 07/15/2021 12:36 WG1705859
(S) Toluene-d8 104 75.0-131 07/15/2021 12:36 WG1705859
(S) 4-Bromofluorobenzene 94.3 67.0-138 07/15/2021 12:36 WG1705859
(S) 1,2-Dichloroethane-d4 95.3 70.0-130 07/15/2021 12:36 WG1705859
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
8
Al
9
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/21/21 17:36 28 of 69
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/22/21 10:11 28 of 69
SAMPLE RESULTS - 12L 1 3 7 7 6 2 6
MW-B 12C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 0 : 5 5
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
Acetone U J3 0.0365 0.0500 1 07/15/2021 12:55 WG1705859
Acrylonitrile U J3 0.00361 0.0125 1 07/15/2021 12:55 WG1705859
Benzene U 0.000467 0.00100 1 07/15/2021 12:55 WG1705859
Bromobenzene U 0.000900 0.0125 1 07/15/2021 12:55 WG1705859
Bromodichloromethane U 0.000725 0.00250 1 07/15/2021 12:55 WG1705859
Bromoform U 0.00117 0.0250 1 07/15/2021 12:55 WG1705859
Bromomethane U 0.00197 0.0125 1 07/15/2021 12:55 WG1705859
n-Butylbenzene U 0.00525 0.0125 1 07/15/2021 12:55 WG1705859
sec-Butylbenzene U 0.00288 0.0125 1 07/15/2021 12:55 WG1705859
tert-Butylbenzene U 0.00195 0.00500 1 07/15/2021 12:55 WG1705859
Carbon tetrachloride U 0.000898 0.00500 1 07/15/2021 12:55 WG1705859
Chlorobenzene U 0.000210 0.00250 1 07/15/2021 12:55 WG1705859
Chlorodibromomethane U 0.000612 0.00250 1 07/15/2021 12:55 WG1705859
Chloroethane U 0.00170 0.00500 1 07/15/2021 12:55 WG1705859
Chloroform U 0.00103 0.00250 1 07/15/2021 12:55 WG1705859
Chloromethane U 0.00435 0.0125 1 07/15/2021 12:55 WG1705859
2-Chlorotoluene U 0.000865 0.00250 1 07/15/2021 12:55 WG1705859
4-Chlorotoluene U 0.000450 0.00500 1 07/15/2021 12:55 WG1705859
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250 1 07/15/2021 12:55 WG1705859
1,2-Dibromoethane U 0.000648 0.00250 1 07/15/2021 12:55 WG1705859
Dibromomethane U 0.000750 0.00500 1 07/15/2021 12:55 WG1705859
1,2-Dichlorobenzene U 0.000425 0.00500 1 07/15/2021 12:55 WG1705859
1,3-Dichlorobenzene U 0.000600 0.00500 1 07/15/2021 12:55 WG1705859
1,4-Dichlorobenzene U 0.000700 0.00500 1 07/15/2021 12:55 WG1705859
Dichlorodifluoromethane U 0.00161 0.00250 1 07/15/2021 12:55 WG1705859
1,1-Dichloroethane U 0.000491 0.00250 1 07/15/2021 12:55 WG1705859
1,2-Dichloroethane U 0.000649 0.00250 1 07/15/2021 12:55 WG1705859
1,1-Dichloroethene U 0.000606 0.00250 1 07/15/2021 12:55 WG1705859
cis-1,2-Dichloroethene U 0.000734 0.00250 1 07/15/2021 12:55 WG1705859
trans-1,2-Dichloroethene U 0.00104 0.00500 1 07/15/2021 12:55 WG1705859
1,2-Dichloropropane U 0.00142 0.00500 1 07/15/2021 12:55 WG1705859
1,1-Dichloropropene U 0.000809 0.00250 1 07/15/2021 12:55 WG1705859
1,3-Dichloropropane U 0.000501 0.00500 1 07/15/2021 12:55 WG1705859
cis-1,3-Dichloropropene U 0.000757 0.00250 1 07/15/2021 12:55 WG1705859
trans-1,3-Dichloropropene U 0.00114 0.00500 1 07/15/2021 12:55 WG1705859
2,2-Dichloropropane U 0.00138 0.00250 1 07/15/2021 12:55 WG1705859
Di-isopropyl ether U 0.000410 0.00100 1 07/15/2021 12:55 WG1705859
Ethylbenzene U 0.000737 0.00250 1 07/15/2021 12:55 WG1705859
Hexachloro-1,3-butadiene U 0.00600 0.0250 1 07/15/2021 12:55 WG1705859
Isopropylbenzene U 0.000425 0.00250 1 07/15/2021 12:55 WG1705859
p-Isopropyltoluene U 0.00255 0.00500 1 07/15/2021 12:55 WG1705859
2-Butanone (MEK) U 0.0635 0.100 1 07/15/2021 12:55 WG1705859
Methylene Chloride U 0.00664 0.0250 1 07/15/2021 12:55 WG1705859
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250 1 07/15/2021 12:55 WG1705859
Methyl tert-butyl ether U 0.000350 0.00100 1 07/15/2021 12:55 WG1705859
Naphthalene U J3 0.00488 0.0125 1 07/15/2021 12:55 WG1705859
n-Propylbenzene U 0.000950 0.00500 1 07/15/2021 12:55 WG1705859
Styrene U 0.000229 0.0125 1 07/15/2021 12:55 WG1705859
1,1,1,2-Tetrachloroethane U 0.000948 0.00250 1 07/15/2021 12:55 WG1705859
1,1,2,2-Tetrachloroethane U 0.000695 0.00250 1 07/15/2021 12:55 WG1705859
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 1 07/15/2021 12:55 WG1705859
Tetrachloroethene U 0.000896 0.00250 1 07/15/2021 12:55 WG1705859
Toluene U 0.00130 0.00500 1 07/15/2021 12:55 WG1705859
1,2,3-Trichlorobenzene U J3 0.00733 0.0125 1 07/15/2021 12:55 WG1705859
1,2,4-Trichlorobenzene U J3 0.00440 0.0125 1 07/15/2021 12:55 WG1705859
1,1,1-Trichloroethane U 0.000923 0.00250 1 07/15/2021 12:55 WG1705859
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
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Al
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ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/21/21 17:36 29 of 69
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/22/21 10:11 29 of 69
SAMPLE RESULTS - 12L 1 3 7 7 6 2 6
MW-B 12C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 0 : 5 5
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
1,1,2-Trichloroethane U 0.000597 0.00250 1 07/15/2021 12:55 WG1705859
Trichloroethene U 0.000584 0.00100 1 07/15/2021 12:55 WG1705859
Trichlorofluoromethane U 0.000827 0.00250 1 07/15/2021 12:55 WG1705859
1,2,3-Trichloropropane U 0.00162 0.0125 1 07/15/2021 12:55 WG1705859
1,2,4-Trimethylbenzene U 0.00158 0.00500 1 07/15/2021 12:55 WG1705859
1,2,3-Trimethylbenzene U J4 0.00158 0.00500 1 07/15/2021 12:55 WG1705859
1,3,5-Trimethylbenzene U 0.00200 0.00500 1 07/15/2021 12:55 WG1705859
Vinyl chloride U 0.00116 0.00250 1 07/15/2021 12:55 WG1705859
Xylenes, Total U 0.000880 0.00650 1 07/15/2021 12:55 WG1705859
(S) Toluene-d8 104 75.0-131 07/15/2021 12:55 WG1705859
(S) 4-Bromofluorobenzene 98.0 67.0-138 07/15/2021 12:55 WG1705859
(S) 1,2-Dichloroethane-d4 101 70.0-130 07/15/2021 12:55 WG1705859
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
8
Al
9
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/21/21 17:36 30 of 69
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/22/21 10:11 30 of 69
SAMPLE RESULTS - 13L 1 3 7 7 6 2 6
MW-B 14C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 0 : 5 8
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
Acetone U J3 0.0365 0.0500 1 07/15/2021 13:14 WG1705859
Acrylonitrile U J3 0.00361 0.0125 1 07/15/2021 13:14 WG1705859
Benzene U 0.000467 0.00100 1 07/15/2021 13:14 WG1705859
Bromobenzene U 0.000900 0.0125 1 07/15/2021 13:14 WG1705859
Bromodichloromethane U 0.000725 0.00250 1 07/15/2021 13:14 WG1705859
Bromoform U 0.00117 0.0250 1 07/15/2021 13:14 WG1705859
Bromomethane U 0.00197 0.0125 1 07/15/2021 13:14 WG1705859
n-Butylbenzene U 0.00525 0.0125 1 07/15/2021 13:14 WG1705859
sec-Butylbenzene U 0.00288 0.0125 1 07/15/2021 13:14 WG1705859
tert-Butylbenzene U 0.00195 0.00500 1 07/15/2021 13:14 WG1705859
Carbon tetrachloride U 0.000898 0.00500 1 07/15/2021 13:14 WG1705859
Chlorobenzene U 0.000210 0.00250 1 07/15/2021 13:14 WG1705859
Chlorodibromomethane U 0.000612 0.00250 1 07/15/2021 13:14 WG1705859
Chloroethane U 0.00170 0.00500 1 07/15/2021 13:14 WG1705859
Chloroform U 0.00103 0.00250 1 07/15/2021 13:14 WG1705859
Chloromethane U 0.00435 0.0125 1 07/15/2021 13:14 WG1705859
2-Chlorotoluene U 0.000865 0.00250 1 07/15/2021 13:14 WG1705859
4-Chlorotoluene U 0.000450 0.00500 1 07/15/2021 13:14 WG1705859
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250 1 07/15/2021 13:14 WG1705859
1,2-Dibromoethane U 0.000648 0.00250 1 07/15/2021 13:14 WG1705859
Dibromomethane U 0.000750 0.00500 1 07/15/2021 13:14 WG1705859
1,2-Dichlorobenzene U 0.000425 0.00500 1 07/15/2021 13:14 WG1705859
1,3-Dichlorobenzene U 0.000600 0.00500 1 07/15/2021 13:14 WG1705859
1,4-Dichlorobenzene U 0.000700 0.00500 1 07/15/2021 13:14 WG1705859
Dichlorodifluoromethane U 0.00161 0.00250 1 07/15/2021 13:14 WG1705859
1,1-Dichloroethane U 0.000491 0.00250 1 07/15/2021 13:14 WG1705859
1,2-Dichloroethane U 0.000649 0.00250 1 07/15/2021 13:14 WG1705859
1,1-Dichloroethene U 0.000606 0.00250 1 07/15/2021 13:14 WG1705859
cis-1,2-Dichloroethene U 0.000734 0.00250 1 07/15/2021 13:14 WG1705859
trans-1,2-Dichloroethene U 0.00104 0.00500 1 07/15/2021 13:14 WG1705859
1,2-Dichloropropane U 0.00142 0.00500 1 07/15/2021 13:14 WG1705859
1,1-Dichloropropene U 0.000809 0.00250 1 07/15/2021 13:14 WG1705859
1,3-Dichloropropane U 0.000501 0.00500 1 07/15/2021 13:14 WG1705859
cis-1,3-Dichloropropene U 0.000757 0.00250 1 07/15/2021 13:14 WG1705859
trans-1,3-Dichloropropene U 0.00114 0.00500 1 07/15/2021 13:14 WG1705859
2,2-Dichloropropane U 0.00138 0.00250 1 07/15/2021 13:14 WG1705859
Di-isopropyl ether U 0.000410 0.00100 1 07/15/2021 13:14 WG1705859
Ethylbenzene U 0.000737 0.00250 1 07/15/2021 13:14 WG1705859
Hexachloro-1,3-butadiene U 0.00600 0.0250 1 07/15/2021 13:14 WG1705859
Isopropylbenzene U 0.000425 0.00250 1 07/15/2021 13:14 WG1705859
p-Isopropyltoluene U 0.00255 0.00500 1 07/15/2021 13:14 WG1705859
2-Butanone (MEK) U 0.0635 0.100 1 07/15/2021 13:14 WG1705859
Methylene Chloride U 0.00664 0.0250 1 07/15/2021 13:14 WG1705859
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250 1 07/15/2021 13:14 WG1705859
Methyl tert-butyl ether U 0.000350 0.00100 1 07/15/2021 13:14 WG1705859
Naphthalene U J3 0.00488 0.0125 1 07/15/2021 13:14 WG1705859
n-Propylbenzene U 0.000950 0.00500 1 07/15/2021 13:14 WG1705859
Styrene U 0.000229 0.0125 1 07/15/2021 13:14 WG1705859
1,1,1,2-Tetrachloroethane U 0.000948 0.00250 1 07/15/2021 13:14 WG1705859
1,1,2,2-Tetrachloroethane U 0.000695 0.00250 1 07/15/2021 13:14 WG1705859
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 1 07/15/2021 13:14 WG1705859
Tetrachloroethene U 0.000896 0.00250 1 07/15/2021 13:14 WG1705859
Toluene U 0.00130 0.00500 1 07/15/2021 13:14 WG1705859
1,2,3-Trichlorobenzene U J3 0.00733 0.0125 1 07/15/2021 13:14 WG1705859
1,2,4-Trichlorobenzene U J3 0.00440 0.0125 1 07/15/2021 13:14 WG1705859
1,1,1-Trichloroethane U 0.000923 0.00250 1 07/15/2021 13:14 WG1705859
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
8
Al
9
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/21/21 17:36 31 of 69
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/22/21 10:11 31 of 69
SAMPLE RESULTS - 13L 1 3 7 7 6 2 6
MW-B 14C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 0 : 5 8
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
1,1,2-Trichloroethane U 0.000597 0.00250 1 07/15/2021 13:14 WG1705859
Trichloroethene U 0.000584 0.00100 1 07/15/2021 13:14 WG1705859
Trichlorofluoromethane U 0.000827 0.00250 1 07/15/2021 13:14 WG1705859
1,2,3-Trichloropropane U 0.00162 0.0125 1 07/15/2021 13:14 WG1705859
1,2,4-Trimethylbenzene U 0.00158 0.00500 1 07/15/2021 13:14 WG1705859
1,2,3-Trimethylbenzene U J4 0.00158 0.00500 1 07/15/2021 13:14 WG1705859
1,3,5-Trimethylbenzene U 0.00200 0.00500 1 07/15/2021 13:14 WG1705859
Vinyl chloride U 0.00116 0.00250 1 07/15/2021 13:14 WG1705859
Xylenes, Total U 0.000880 0.00650 1 07/15/2021 13:14 WG1705859
(S) Toluene-d8 103 75.0-131 07/15/2021 13:14 WG1705859
(S) 4-Bromofluorobenzene 94.4 67.0-138 07/15/2021 13:14 WG1705859
(S) 1,2-Dichloroethane-d4 101 70.0-130 07/15/2021 13:14 WG1705859
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
8
Al
9
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/21/21 17:36 32 of 69
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/22/21 10:11 32 of 69
SAMPLE RESULTS - 14L 1 3 7 7 6 2 6
MW-B 16C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 1 : 1 0
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
Acetone U J3 0.0365 0.0500 1 07/15/2021 13:33 WG1705859
Acrylonitrile U J3 0.00361 0.0125 1 07/15/2021 13:33 WG1705859
Benzene U 0.000467 0.00100 1 07/15/2021 13:33 WG1705859
Bromobenzene U 0.000900 0.0125 1 07/15/2021 13:33 WG1705859
Bromodichloromethane U 0.000725 0.00250 1 07/15/2021 13:33 WG1705859
Bromoform U 0.00117 0.0250 1 07/15/2021 13:33 WG1705859
Bromomethane U 0.00197 0.0125 1 07/15/2021 13:33 WG1705859
n-Butylbenzene U 0.00525 0.0125 1 07/15/2021 13:33 WG1705859
sec-Butylbenzene U 0.00288 0.0125 1 07/15/2021 13:33 WG1705859
tert-Butylbenzene U 0.00195 0.00500 1 07/15/2021 13:33 WG1705859
Carbon tetrachloride U 0.000898 0.00500 1 07/15/2021 13:33 WG1705859
Chlorobenzene U 0.000210 0.00250 1 07/15/2021 13:33 WG1705859
Chlorodibromomethane U 0.000612 0.00250 1 07/15/2021 13:33 WG1705859
Chloroethane U 0.00170 0.00500 1 07/15/2021 13:33 WG1705859
Chloroform U 0.00103 0.00250 1 07/15/2021 13:33 WG1705859
Chloromethane U 0.00435 0.0125 1 07/15/2021 13:33 WG1705859
2-Chlorotoluene U 0.000865 0.00250 1 07/15/2021 13:33 WG1705859
4-Chlorotoluene U 0.000450 0.00500 1 07/15/2021 13:33 WG1705859
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250 1 07/15/2021 13:33 WG1705859
1,2-Dibromoethane U 0.000648 0.00250 1 07/15/2021 13:33 WG1705859
Dibromomethane U 0.000750 0.00500 1 07/15/2021 13:33 WG1705859
1,2-Dichlorobenzene U 0.000425 0.00500 1 07/15/2021 13:33 WG1705859
1,3-Dichlorobenzene U 0.000600 0.00500 1 07/15/2021 13:33 WG1705859
1,4-Dichlorobenzene U 0.000700 0.00500 1 07/15/2021 13:33 WG1705859
Dichlorodifluoromethane U 0.00161 0.00250 1 07/15/2021 13:33 WG1705859
1,1-Dichloroethane U 0.000491 0.00250 1 07/15/2021 13:33 WG1705859
1,2-Dichloroethane U 0.000649 0.00250 1 07/15/2021 13:33 WG1705859
1,1-Dichloroethene U 0.000606 0.00250 1 07/15/2021 13:33 WG1705859
cis-1,2-Dichloroethene U 0.000734 0.00250 1 07/15/2021 13:33 WG1705859
trans-1,2-Dichloroethene U 0.00104 0.00500 1 07/15/2021 13:33 WG1705859
1,2-Dichloropropane U 0.00142 0.00500 1 07/15/2021 13:33 WG1705859
1,1-Dichloropropene U 0.000809 0.00250 1 07/15/2021 13:33 WG1705859
1,3-Dichloropropane U 0.000501 0.00500 1 07/15/2021 13:33 WG1705859
cis-1,3-Dichloropropene U 0.000757 0.00250 1 07/15/2021 13:33 WG1705859
trans-1,3-Dichloropropene U 0.00114 0.00500 1 07/15/2021 13:33 WG1705859
2,2-Dichloropropane U 0.00138 0.00250 1 07/15/2021 13:33 WG1705859
Di-isopropyl ether U 0.000410 0.00100 1 07/15/2021 13:33 WG1705859
Ethylbenzene U 0.000737 0.00250 1 07/15/2021 13:33 WG1705859
Hexachloro-1,3-butadiene U 0.00600 0.0250 1 07/15/2021 13:33 WG1705859
Isopropylbenzene U 0.000425 0.00250 1 07/15/2021 13:33 WG1705859
p-Isopropyltoluene U 0.00255 0.00500 1 07/15/2021 13:33 WG1705859
2-Butanone (MEK) U 0.0635 0.100 1 07/15/2021 13:33 WG1705859
Methylene Chloride U 0.00664 0.0250 1 07/15/2021 13:33 WG1705859
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250 1 07/15/2021 13:33 WG1705859
Methyl tert-butyl ether U 0.000350 0.00100 1 07/15/2021 13:33 WG1705859
Naphthalene U J3 0.00488 0.0125 1 07/15/2021 13:33 WG1705859
n-Propylbenzene U 0.000950 0.00500 1 07/15/2021 13:33 WG1705859
Styrene U 0.000229 0.0125 1 07/15/2021 13:33 WG1705859
1,1,1,2-Tetrachloroethane U 0.000948 0.00250 1 07/15/2021 13:33 WG1705859
1,1,2,2-Tetrachloroethane U 0.000695 0.00250 1 07/15/2021 13:33 WG1705859
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 1 07/15/2021 13:33 WG1705859
Tetrachloroethene U 0.000896 0.00250 1 07/15/2021 13:33 WG1705859
Toluene U 0.00130 0.00500 1 07/15/2021 13:33 WG1705859
1,2,3-Trichlorobenzene U J3 0.00733 0.0125 1 07/15/2021 13:33 WG1705859
1,2,4-Trichlorobenzene U J3 0.00440 0.0125 1 07/15/2021 13:33 WG1705859
1,1,1-Trichloroethane U 0.000923 0.00250 1 07/15/2021 13:33 WG1705859
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
8
Al
9
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/21/21 17:36 33 of 69
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/22/21 10:11 33 of 69
SAMPLE RESULTS - 14L 1 3 7 7 6 2 6
MW-B 16C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 1 : 1 0
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
1,1,2-Trichloroethane U 0.000597 0.00250 1 07/15/2021 13:33 WG1705859
Trichloroethene U 0.000584 0.00100 1 07/15/2021 13:33 WG1705859
Trichlorofluoromethane U 0.000827 0.00250 1 07/15/2021 13:33 WG1705859
1,2,3-Trichloropropane U 0.00162 0.0125 1 07/15/2021 13:33 WG1705859
1,2,4-Trimethylbenzene U 0.00158 0.00500 1 07/15/2021 13:33 WG1705859
1,2,3-Trimethylbenzene U J4 0.00158 0.00500 1 07/15/2021 13:33 WG1705859
1,3,5-Trimethylbenzene U 0.00200 0.00500 1 07/15/2021 13:33 WG1705859
Vinyl chloride U 0.00116 0.00250 1 07/15/2021 13:33 WG1705859
Xylenes, Total U 0.000880 0.00650 1 07/15/2021 13:33 WG1705859
(S) Toluene-d8 105 75.0-131 07/15/2021 13:33 WG1705859
(S) 4-Bromofluorobenzene 95.9 67.0-138 07/15/2021 13:33 WG1705859
(S) 1,2-Dichloroethane-d4 100 70.0-130 07/15/2021 13:33 WG1705859
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
8
Al
9
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/21/21 17:36 34 of 69
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/22/21 10:11 34 of 69
SAMPLE RESULTS - 15L 1 3 7 7 6 2 6
MW-B 18C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 1 : 1 4
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
Acetone U J3 0.0365 0.0500 1 07/15/2021 13:52 WG1705859
Acrylonitrile U J3 0.00361 0.0125 1 07/15/2021 13:52 WG1705859
Benzene U 0.000467 0.00100 1 07/15/2021 13:52 WG1705859
Bromobenzene U 0.000900 0.0125 1 07/15/2021 13:52 WG1705859
Bromodichloromethane U 0.000725 0.00250 1 07/15/2021 13:52 WG1705859
Bromoform U 0.00117 0.0250 1 07/15/2021 13:52 WG1705859
Bromomethane U 0.00197 0.0125 1 07/15/2021 13:52 WG1705859
n-Butylbenzene U 0.00525 0.0125 1 07/15/2021 13:52 WG1705859
sec-Butylbenzene U 0.00288 0.0125 1 07/15/2021 13:52 WG1705859
tert-Butylbenzene U 0.00195 0.00500 1 07/15/2021 13:52 WG1705859
Carbon tetrachloride U 0.000898 0.00500 1 07/15/2021 13:52 WG1705859
Chlorobenzene U 0.000210 0.00250 1 07/15/2021 13:52 WG1705859
Chlorodibromomethane U 0.000612 0.00250 1 07/15/2021 13:52 WG1705859
Chloroethane U 0.00170 0.00500 1 07/15/2021 13:52 WG1705859
Chloroform U 0.00103 0.00250 1 07/15/2021 13:52 WG1705859
Chloromethane U 0.00435 0.0125 1 07/15/2021 13:52 WG1705859
2-Chlorotoluene U 0.000865 0.00250 1 07/15/2021 13:52 WG1705859
4-Chlorotoluene U 0.000450 0.00500 1 07/15/2021 13:52 WG1705859
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250 1 07/15/2021 13:52 WG1705859
1,2-Dibromoethane U 0.000648 0.00250 1 07/15/2021 13:52 WG1705859
Dibromomethane U 0.000750 0.00500 1 07/15/2021 13:52 WG1705859
1,2-Dichlorobenzene U 0.000425 0.00500 1 07/15/2021 13:52 WG1705859
1,3-Dichlorobenzene U 0.000600 0.00500 1 07/15/2021 13:52 WG1705859
1,4-Dichlorobenzene U 0.000700 0.00500 1 07/15/2021 13:52 WG1705859
Dichlorodifluoromethane U 0.00161 0.00250 1 07/15/2021 13:52 WG1705859
1,1-Dichloroethane U 0.000491 0.00250 1 07/15/2021 13:52 WG1705859
1,2-Dichloroethane U 0.000649 0.00250 1 07/15/2021 13:52 WG1705859
1,1-Dichloroethene U 0.000606 0.00250 1 07/15/2021 13:52 WG1705859
cis-1,2-Dichloroethene U 0.000734 0.00250 1 07/15/2021 13:52 WG1705859
trans-1,2-Dichloroethene U 0.00104 0.00500 1 07/15/2021 13:52 WG1705859
1,2-Dichloropropane U 0.00142 0.00500 1 07/15/2021 13:52 WG1705859
1,1-Dichloropropene U 0.000809 0.00250 1 07/15/2021 13:52 WG1705859
1,3-Dichloropropane U 0.000501 0.00500 1 07/15/2021 13:52 WG1705859
cis-1,3-Dichloropropene U 0.000757 0.00250 1 07/15/2021 13:52 WG1705859
trans-1,3-Dichloropropene U 0.00114 0.00500 1 07/15/2021 13:52 WG1705859
2,2-Dichloropropane U 0.00138 0.00250 1 07/15/2021 13:52 WG1705859
Di-isopropyl ether U 0.000410 0.00100 1 07/15/2021 13:52 WG1705859
Ethylbenzene U 0.000737 0.00250 1 07/15/2021 13:52 WG1705859
Hexachloro-1,3-butadiene U 0.00600 0.0250 1 07/15/2021 13:52 WG1705859
Isopropylbenzene U 0.000425 0.00250 1 07/15/2021 13:52 WG1705859
p-Isopropyltoluene U 0.00255 0.00500 1 07/15/2021 13:52 WG1705859
2-Butanone (MEK) U 0.0635 0.100 1 07/15/2021 13:52 WG1705859
Methylene Chloride U 0.00664 0.0250 1 07/15/2021 13:52 WG1705859
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250 1 07/15/2021 13:52 WG1705859
Methyl tert-butyl ether U 0.000350 0.00100 1 07/15/2021 13:52 WG1705859
Naphthalene U J3 0.00488 0.0125 1 07/15/2021 13:52 WG1705859
n-Propylbenzene U 0.000950 0.00500 1 07/15/2021 13:52 WG1705859
Styrene U 0.000229 0.0125 1 07/15/2021 13:52 WG1705859
1,1,1,2-Tetrachloroethane U 0.000948 0.00250 1 07/15/2021 13:52 WG1705859
1,1,2,2-Tetrachloroethane U 0.000695 0.00250 1 07/15/2021 13:52 WG1705859
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 1 07/15/2021 13:52 WG1705859
Tetrachloroethene U 0.000896 0.00250 1 07/15/2021 13:52 WG1705859
Toluene U 0.00130 0.00500 1 07/15/2021 13:52 WG1705859
1,2,3-Trichlorobenzene U J3 0.00733 0.0125 1 07/15/2021 13:52 WG1705859
1,2,4-Trichlorobenzene U J3 0.00440 0.0125 1 07/15/2021 13:52 WG1705859
1,1,1-Trichloroethane U 0.000923 0.00250 1 07/15/2021 13:52 WG1705859
1
Cp
2
Tc
3
Ss
4
Cn
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Sr
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Qc
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Gl
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Al
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Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
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ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
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SAMPLE RESULTS - 15L 1 3 7 7 6 2 6
MW-B 18C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 1 : 1 4
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
1,1,2-Trichloroethane U 0.000597 0.00250 1 07/15/2021 13:52 WG1705859
Trichloroethene U 0.000584 0.00100 1 07/15/2021 13:52 WG1705859
Trichlorofluoromethane U 0.000827 0.00250 1 07/15/2021 13:52 WG1705859
1,2,3-Trichloropropane U 0.00162 0.0125 1 07/15/2021 13:52 WG1705859
1,2,4-Trimethylbenzene U 0.00158 0.00500 1 07/15/2021 13:52 WG1705859
1,2,3-Trimethylbenzene U J4 0.00158 0.00500 1 07/15/2021 13:52 WG1705859
1,3,5-Trimethylbenzene U 0.00200 0.00500 1 07/15/2021 13:52 WG1705859
Vinyl chloride U 0.00116 0.00250 1 07/15/2021 13:52 WG1705859
Xylenes, Total U 0.000880 0.00650 1 07/15/2021 13:52 WG1705859
(S) Toluene-d8 106 75.0-131 07/15/2021 13:52 WG1705859
(S) 4-Bromofluorobenzene 92.9 67.0-138 07/15/2021 13:52 WG1705859
(S) 1,2-Dichloroethane-d4 97.1 70.0-130 07/15/2021 13:52 WG1705859
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
8
Al
9
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
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ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
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SAMPLE RESULTS - 16L 1 3 7 7 6 2 6
MW-B 20C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 1 : 3 0
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
Acetone U J3 0.0365 0.0500 1 07/15/2021 14:11 WG1705859
Acrylonitrile U J3 0.00361 0.0125 1 07/15/2021 14:11 WG1705859
Benzene U 0.000467 0.00100 1 07/15/2021 14:11 WG1705859
Bromobenzene U 0.000900 0.0125 1 07/15/2021 14:11 WG1705859
Bromodichloromethane U 0.000725 0.00250 1 07/15/2021 14:11 WG1705859
Bromoform U 0.00117 0.0250 1 07/15/2021 14:11 WG1705859
Bromomethane U 0.00197 0.0125 1 07/15/2021 14:11 WG1705859
n-Butylbenzene U 0.00525 0.0125 1 07/15/2021 14:11 WG1705859
sec-Butylbenzene U 0.00288 0.0125 1 07/15/2021 14:11 WG1705859
tert-Butylbenzene U 0.00195 0.00500 1 07/15/2021 14:11 WG1705859
Carbon tetrachloride U 0.000898 0.00500 1 07/15/2021 14:11 WG1705859
Chlorobenzene U 0.000210 0.00250 1 07/15/2021 14:11 WG1705859
Chlorodibromomethane U 0.000612 0.00250 1 07/15/2021 14:11 WG1705859
Chloroethane U 0.00170 0.00500 1 07/15/2021 14:11 WG1705859
Chloroform U 0.00103 0.00250 1 07/15/2021 14:11 WG1705859
Chloromethane U 0.00435 0.0125 1 07/15/2021 14:11 WG1705859
2-Chlorotoluene U 0.000865 0.00250 1 07/15/2021 14:11 WG1705859
4-Chlorotoluene U 0.000450 0.00500 1 07/15/2021 14:11 WG1705859
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250 1 07/15/2021 14:11 WG1705859
1,2-Dibromoethane U 0.000648 0.00250 1 07/15/2021 14:11 WG1705859
Dibromomethane U 0.000750 0.00500 1 07/15/2021 14:11 WG1705859
1,2-Dichlorobenzene U 0.000425 0.00500 1 07/15/2021 14:11 WG1705859
1,3-Dichlorobenzene U 0.000600 0.00500 1 07/15/2021 14:11 WG1705859
1,4-Dichlorobenzene U 0.000700 0.00500 1 07/15/2021 14:11 WG1705859
Dichlorodifluoromethane U 0.00161 0.00250 1 07/15/2021 14:11 WG1705859
1,1-Dichloroethane U 0.000491 0.00250 1 07/15/2021 14:11 WG1705859
1,2-Dichloroethane U 0.000649 0.00250 1 07/15/2021 14:11 WG1705859
1,1-Dichloroethene U 0.000606 0.00250 1 07/15/2021 14:11 WG1705859
cis-1,2-Dichloroethene U 0.000734 0.00250 1 07/15/2021 14:11 WG1705859
trans-1,2-Dichloroethene U 0.00104 0.00500 1 07/15/2021 14:11 WG1705859
1,2-Dichloropropane U 0.00142 0.00500 1 07/15/2021 14:11 WG1705859
1,1-Dichloropropene U 0.000809 0.00250 1 07/15/2021 14:11 WG1705859
1,3-Dichloropropane U 0.000501 0.00500 1 07/15/2021 14:11 WG1705859
cis-1,3-Dichloropropene U 0.000757 0.00250 1 07/15/2021 14:11 WG1705859
trans-1,3-Dichloropropene U 0.00114 0.00500 1 07/15/2021 14:11 WG1705859
2,2-Dichloropropane U 0.00138 0.00250 1 07/15/2021 14:11 WG1705859
Di-isopropyl ether U 0.000410 0.00100 1 07/15/2021 14:11 WG1705859
Ethylbenzene U 0.000737 0.00250 1 07/15/2021 14:11 WG1705859
Hexachloro-1,3-butadiene U 0.00600 0.0250 1 07/15/2021 14:11 WG1705859
Isopropylbenzene U 0.000425 0.00250 1 07/15/2021 14:11 WG1705859
p-Isopropyltoluene U 0.00255 0.00500 1 07/15/2021 14:11 WG1705859
2-Butanone (MEK) U 0.0635 0.100 1 07/15/2021 14:11 WG1705859
Methylene Chloride U 0.00664 0.0250 1 07/15/2021 14:11 WG1705859
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250 1 07/15/2021 14:11 WG1705859
Methyl tert-butyl ether U 0.000350 0.00100 1 07/15/2021 14:11 WG1705859
Naphthalene U J3 0.00488 0.0125 1 07/15/2021 14:11 WG1705859
n-Propylbenzene U 0.000950 0.00500 1 07/15/2021 14:11 WG1705859
Styrene U 0.000229 0.0125 1 07/15/2021 14:11 WG1705859
1,1,1,2-Tetrachloroethane U 0.000948 0.00250 1 07/15/2021 14:11 WG1705859
1,1,2,2-Tetrachloroethane U 0.000695 0.00250 1 07/15/2021 14:11 WG1705859
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 1 07/15/2021 14:11 WG1705859
Tetrachloroethene U 0.000896 0.00250 1 07/15/2021 14:11 WG1705859
Toluene U 0.00130 0.00500 1 07/15/2021 14:11 WG1705859
1,2,3-Trichlorobenzene U J3 0.00733 0.0125 1 07/15/2021 14:11 WG1705859
1,2,4-Trichlorobenzene U J3 0.00440 0.0125 1 07/15/2021 14:11 WG1705859
1,1,1-Trichloroethane U 0.000923 0.00250 1 07/15/2021 14:11 WG1705859
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
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Al
9
Sc
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SAMPLE RESULTS - 16L 1 3 7 7 6 2 6
MW-B 20C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 1 : 3 0
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
1,1,2-Trichloroethane U 0.000597 0.00250 1 07/15/2021 14:11 WG1705859
Trichloroethene U 0.000584 0.00100 1 07/15/2021 14:11 WG1705859
Trichlorofluoromethane U 0.000827 0.00250 1 07/15/2021 14:11 WG1705859
1,2,3-Trichloropropane U 0.00162 0.0125 1 07/15/2021 14:11 WG1705859
1,2,4-Trimethylbenzene U 0.00158 0.00500 1 07/15/2021 14:11 WG1705859
1,2,3-Trimethylbenzene U J4 0.00158 0.00500 1 07/15/2021 14:11 WG1705859
1,3,5-Trimethylbenzene U 0.00200 0.00500 1 07/15/2021 14:11 WG1705859
Vinyl chloride U 0.00116 0.00250 1 07/15/2021 14:11 WG1705859
Xylenes, Total U 0.000880 0.00650 1 07/15/2021 14:11 WG1705859
(S) Toluene-d8 104 75.0-131 07/15/2021 14:11 WG1705859
(S) 4-Bromofluorobenzene 90.5 67.0-138 07/15/2021 14:11 WG1705859
(S) 1,2-Dichloroethane-d4 101 70.0-130 07/15/2021 14:11 WG1705859
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
8
Al
9
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
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ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
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SAMPLE RESULTS - 18L 1 3 7 7 6 2 6
MW-B 22C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 1 : 3 5
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
Acetone U J4 0.0365 0.0500 1 07/17/2021 12:13 WG1707043
Acrylonitrile U 0.00361 0.0125 1 07/17/2021 12:13 WG1707043
Benzene U J3 0.000467 0.00100 1 07/17/2021 12:13 WG1707043
Bromobenzene U 0.000900 0.0125 1 07/17/2021 12:13 WG1707043
Bromodichloromethane U 0.000725 0.00250 1 07/17/2021 12:13 WG1707043
Bromoform U 0.00117 0.0250 1 07/17/2021 12:13 WG1707043
Bromomethane U J3 0.00197 0.0125 1 07/17/2021 12:13 WG1707043
n-Butylbenzene U J3 0.00525 0.0125 1 07/17/2021 12:13 WG1707043
sec-Butylbenzene U J3 0.00288 0.0125 1 07/17/2021 12:13 WG1707043
tert-Butylbenzene U J3 0.00195 0.00500 1 07/17/2021 12:13 WG1707043
Carbon tetrachloride U J3 0.000898 0.00500 1 07/17/2021 12:13 WG1707043
Chlorobenzene U 0.000210 0.00250 1 07/17/2021 12:13 WG1707043
Chlorodibromomethane U 0.000612 0.00250 1 07/17/2021 12:13 WG1707043
Chloroethane U J3 0.00170 0.00500 1 07/17/2021 12:13 WG1707043
Chloroform U 0.00103 0.00250 1 07/17/2021 12:13 WG1707043
Chloromethane U J3 0.00435 0.0125 1 07/17/2021 12:13 WG1707043
2-Chlorotoluene U J3 0.000865 0.00250 1 07/17/2021 12:13 WG1707043
4-Chlorotoluene U 0.000450 0.00500 1 07/17/2021 12:13 WG1707043
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250 1 07/17/2021 12:13 WG1707043
1,2-Dibromoethane U 0.000648 0.00250 1 07/17/2021 12:13 WG1707043
Dibromomethane U 0.000750 0.00500 1 07/17/2021 12:13 WG1707043
1,2-Dichlorobenzene U 0.000425 0.00500 1 07/17/2021 12:13 WG1707043
1,3-Dichlorobenzene U 0.000600 0.00500 1 07/17/2021 12:13 WG1707043
1,4-Dichlorobenzene U 0.000700 0.00500 1 07/17/2021 12:13 WG1707043
Dichlorodifluoromethane U J3 0.00161 0.00250 1 07/17/2021 12:13 WG1707043
1,1-Dichloroethane U J3 0.000491 0.00250 1 07/17/2021 12:13 WG1707043
1,2-Dichloroethane U 0.000649 0.00250 1 07/17/2021 12:13 WG1707043
1,1-Dichloroethene U J3 0.000606 0.00250 1 07/17/2021 12:13 WG1707043
cis-1,2-Dichloroethene U 0.000734 0.00250 1 07/17/2021 12:13 WG1707043
trans-1,2-Dichloroethene U J3 0.00104 0.00500 1 07/17/2021 12:13 WG1707043
1,2-Dichloropropane U 0.00142 0.00500 1 07/17/2021 12:13 WG1707043
1,1-Dichloropropene U J3 0.000809 0.00250 1 07/17/2021 12:13 WG1707043
1,3-Dichloropropane U 0.000501 0.00500 1 07/17/2021 12:13 WG1707043
cis-1,3-Dichloropropene U 0.000757 0.00250 1 07/17/2021 12:13 WG1707043
trans-1,3-Dichloropropene U 0.00114 0.00500 1 07/17/2021 12:13 WG1707043
2,2-Dichloropropane U J3 0.00138 0.00250 1 07/17/2021 12:13 WG1707043
Di-isopropyl ether U 0.000410 0.00100 1 07/17/2021 12:13 WG1707043
Ethylbenzene U J3 0.000737 0.00250 1 07/17/2021 12:13 WG1707043
Hexachloro-1,3-butadiene U J3 0.00600 0.0250 1 07/17/2021 12:13 WG1707043
Isopropylbenzene U J3 0.000425 0.00250 1 07/17/2021 12:13 WG1707043
p-Isopropyltoluene U J3 0.00255 0.00500 1 07/17/2021 12:13 WG1707043
2-Butanone (MEK) U J4 0.0635 0.100 1 07/17/2021 12:13 WG1707043
Methylene Chloride U 0.00664 0.0250 1 07/17/2021 12:13 WG1707043
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250 1 07/17/2021 12:13 WG1707043
Methyl tert-butyl ether U 0.000350 0.00100 1 07/17/2021 12:13 WG1707043
Naphthalene U 0.00488 0.0125 1 07/17/2021 12:13 WG1707043
n-Propylbenzene U J3 0.000950 0.00500 1 07/17/2021 12:13 WG1707043
Styrene U 0.000229 0.0125 1 07/17/2021 12:13 WG1707043
1,1,1,2-Tetrachloroethane U 0.000948 0.00250 1 07/17/2021 12:13 WG1707043
1,1,2,2-Tetrachloroethane U 0.000695 0.00250 1 07/17/2021 12:13 WG1707043
1,1,2-Trichlorotrifluoroethane U J3 0.000754 0.00250 1 07/17/2021 12:13 WG1707043
Tetrachloroethene U J3 0.000896 0.00250 1 07/17/2021 12:13 WG1707043
Toluene U J3 0.00130 0.00500 1 07/17/2021 12:13 WG1707043
1,2,3-Trichlorobenzene U 0.00733 0.0125 1 07/17/2021 12:13 WG1707043
1,2,4-Trichlorobenzene U 0.00440 0.0125 1 07/17/2021 12:13 WG1707043
1,1,1-Trichloroethane U J3 0.000923 0.00250 1 07/17/2021 12:13 WG1707043
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Qc
7
Gl
8
Al
9
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
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ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
ERO Resources 10197 L1377626 07/22/21 10:11 39 of 69
SAMPLE RESULTS - 18L 1 3 7 7 6 2 6
MW-B 22C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 1 : 3 5
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
1,1,2-Trichloroethane U 0.000597 0.00250 1 07/17/2021 12:13 WG1707043
Trichloroethene U J3 0.000584 0.00100 1 07/17/2021 12:13 WG1707043
Trichlorofluoromethane U J3 0.000827 0.00250 1 07/17/2021 12:13 WG1707043
1,2,3-Trichloropropane U 0.00162 0.0125 1 07/17/2021 12:13 WG1707043
1,2,4-Trimethylbenzene U J3 0.00158 0.00500 1 07/17/2021 12:13 WG1707043
1,2,3-Trimethylbenzene U 0.00158 0.00500 1 07/17/2021 12:13 WG1707043
1,3,5-Trimethylbenzene U J3 0.00200 0.00500 1 07/17/2021 12:13 WG1707043
Vinyl chloride U J3 0.00116 0.00250 1 07/17/2021 12:13 WG1707043
Xylenes, Total U 0.000880 0.00650 1 07/17/2021 12:13 WG1707043
(S) Toluene-d8 99.0 75.0-131 07/17/2021 12:13 WG1707043
(S) 4-Bromofluorobenzene 85.9 67.0-138 07/17/2021 12:13 WG1707043
(S) 1,2-Dichloroethane-d4 91.6 70.0-130 07/17/2021 12:13 WG1707043
1
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SAMPLE RESULTS - 19L 1 3 7 7 6 2 6
MW-B 25C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 1 : 4 2
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
Acetone U J3 J4 0.0365 0.0500 1 07/17/2021 12:34 WG1707043
Acrylonitrile U J3 0.00361 0.0125 1 07/17/2021 12:34 WG1707043
Benzene U 0.000467 0.00100 1 07/17/2021 12:34 WG1707043
Bromobenzene U 0.000900 0.0125 1 07/17/2021 12:34 WG1707043
Bromodichloromethane U 0.000725 0.00250 1 07/17/2021 12:34 WG1707043
Bromoform U 0.00117 0.0250 1 07/17/2021 12:34 WG1707043
Bromomethane U 0.00197 0.0125 1 07/17/2021 12:34 WG1707043
n-Butylbenzene U 0.00525 0.0125 1 07/17/2021 12:34 WG1707043
sec-Butylbenzene U 0.00288 0.0125 1 07/17/2021 12:34 WG1707043
tert-Butylbenzene U 0.00195 0.00500 1 07/17/2021 12:34 WG1707043
Carbon tetrachloride U 0.000898 0.00500 1 07/17/2021 12:34 WG1707043
Chlorobenzene U 0.000210 0.00250 1 07/17/2021 12:34 WG1707043
Chlorodibromomethane U 0.000612 0.00250 1 07/17/2021 12:34 WG1707043
Chloroethane U 0.00170 0.00500 1 07/17/2021 12:34 WG1707043
Chloroform U 0.00103 0.00250 1 07/17/2021 12:34 WG1707043
Chloromethane U 0.00435 0.0125 1 07/17/2021 12:34 WG1707043
2-Chlorotoluene U 0.000865 0.00250 1 07/17/2021 12:34 WG1707043
4-Chlorotoluene U 0.000450 0.00500 1 07/17/2021 12:34 WG1707043
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250 1 07/17/2021 12:34 WG1707043
1,2-Dibromoethane U 0.000648 0.00250 1 07/17/2021 12:34 WG1707043
Dibromomethane U 0.000750 0.00500 1 07/17/2021 12:34 WG1707043
1,2-Dichlorobenzene U 0.000425 0.00500 1 07/17/2021 12:34 WG1707043
1,3-Dichlorobenzene U 0.000600 0.00500 1 07/17/2021 12:34 WG1707043
1,4-Dichlorobenzene U 0.000700 0.00500 1 07/17/2021 12:34 WG1707043
Dichlorodifluoromethane U 0.00161 0.00250 1 07/17/2021 12:34 WG1707043
1,1-Dichloroethane U 0.000491 0.00250 1 07/17/2021 12:34 WG1707043
1,2-Dichloroethane U 0.000649 0.00250 1 07/17/2021 12:34 WG1707043
1,1-Dichloroethene U 0.000606 0.00250 1 07/17/2021 12:34 WG1707043
cis-1,2-Dichloroethene U 0.000734 0.00250 1 07/17/2021 12:34 WG1707043
trans-1,2-Dichloroethene U 0.00104 0.00500 1 07/17/2021 12:34 WG1707043
1,2-Dichloropropane U 0.00142 0.00500 1 07/17/2021 12:34 WG1707043
1,1-Dichloropropene U 0.000809 0.00250 1 07/17/2021 12:34 WG1707043
1,3-Dichloropropane U 0.000501 0.00500 1 07/17/2021 12:34 WG1707043
cis-1,3-Dichloropropene U 0.000757 0.00250 1 07/17/2021 12:34 WG1707043
trans-1,3-Dichloropropene U 0.00114 0.00500 1 07/17/2021 12:34 WG1707043
2,2-Dichloropropane U 0.00138 0.00250 1 07/17/2021 12:34 WG1707043
Di-isopropyl ether U 0.000410 0.00100 1 07/17/2021 12:34 WG1707043
Ethylbenzene U 0.000737 0.00250 1 07/17/2021 12:34 WG1707043
Hexachloro-1,3-butadiene U 0.00600 0.0250 1 07/17/2021 12:34 WG1707043
Isopropylbenzene U 0.000425 0.00250 1 07/17/2021 12:34 WG1707043
p-Isopropyltoluene U 0.00255 0.00500 1 07/17/2021 12:34 WG1707043
2-Butanone (MEK) U J4 0.0635 0.100 1 07/17/2021 12:34 WG1707043
Methylene Chloride U 0.00664 0.0250 1 07/17/2021 12:34 WG1707043
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250 1 07/17/2021 12:34 WG1707043
Methyl tert-butyl ether U 0.000350 0.00100 1 07/17/2021 12:34 WG1707043
Naphthalene U 0.00488 0.0125 1 07/17/2021 12:34 WG1707043
n-Propylbenzene U 0.000950 0.00500 1 07/17/2021 12:34 WG1707043
Styrene U 0.000229 0.0125 1 07/17/2021 12:34 WG1707043
1,1,1,2-Tetrachloroethane U 0.000948 0.00250 1 07/17/2021 12:34 WG1707043
1,1,2,2-Tetrachloroethane U 0.000695 0.00250 1 07/17/2021 12:34 WG1707043
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 1 07/17/2021 12:34 WG1707043
Tetrachloroethene U 0.000896 0.00250 1 07/17/2021 12:34 WG1707043
Toluene U 0.00130 0.00500 1 07/17/2021 12:34 WG1707043
1,2,3-Trichlorobenzene U 0.00733 0.0125 1 07/17/2021 12:34 WG1707043
1,2,4-Trichlorobenzene U 0.00440 0.0125 1 07/17/2021 12:34 WG1707043
1,1,1-Trichloroethane U 0.000923 0.00250 1 07/17/2021 12:34 WG1707043
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Cp
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Tc
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Ss
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Cn
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Sr
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Qc
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Gl
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Al
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Sc
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SAMPLE RESULTS - 19L 1 3 7 7 6 2 6
MW-B 25C o l l e c t e d d a t e / t i m e : 0 7 / 0 9 / 2 1 1 1 : 4 2
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
1,1,2-Trichloroethane U 0.000597 0.00250 1 07/17/2021 12:34 WG1707043
Trichloroethene U 0.000584 0.00100 1 07/17/2021 12:34 WG1707043
Trichlorofluoromethane U 0.000827 0.00250 1 07/17/2021 12:34 WG1707043
1,2,3-Trichloropropane U 0.00162 0.0125 1 07/17/2021 12:34 WG1707043
1,2,4-Trimethylbenzene U 0.00158 0.00500 1 07/17/2021 12:34 WG1707043
1,2,3-Trimethylbenzene U 0.00158 0.00500 1 07/17/2021 12:34 WG1707043
1,3,5-Trimethylbenzene U 0.00200 0.00500 1 07/17/2021 12:34 WG1707043
Vinyl chloride U 0.00116 0.00250 1 07/17/2021 12:34 WG1707043
Xylenes, Total U 0.000880 0.00650 1 07/17/2021 12:34 WG1707043
(S) Toluene-d8 99.3 75.0-131 07/17/2021 12:34 WG1707043
(S) 4-Bromofluorobenzene 85.4 67.0-138 07/17/2021 12:34 WG1707043
(S) 1,2-Dichloroethane-d4 95.6 70.0-130 07/17/2021 12:34 WG1707043
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
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Qc
7
Gl
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Al
9
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QUALITY CONTROL SUMMARYWG1705462V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 7 7 6 2 6 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6 , 0 7 , 0 8
Method Blank (MB)
(MB) R3681629-2 07/15/21 03:31
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Acetone U 0.0365 0.0500
Acrylonitrile U 0.00361 0.0125
Benzene U 0.000467 0.00100
Bromobenzene U 0.000900 0.0125
Bromodichloromethane U 0.000725 0.00250
Bromoform U 0.00117 0.0250
Bromomethane U 0.00197 0.0125
n-Butylbenzene U 0.00525 0.0125
sec-Butylbenzene U 0.00288 0.0125
tert-Butylbenzene U 0.00195 0.00500
Carbon tetrachloride U 0.000898 0.00500
Chlorobenzene U 0.000210 0.00250
Chlorodibromomethane U 0.000612 0.00250
Chloroethane U 0.00170 0.00500
Chloroform U 0.00103 0.00250
Chloromethane U 0.00435 0.0125
2-Chlorotoluene U 0.000865 0.00250
4-Chlorotoluene U 0.000450 0.00500
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250
1,2-Dibromoethane U 0.000648 0.00250
Dibromomethane U 0.000750 0.00500
1,2-Dichlorobenzene U 0.000425 0.00500
1,3-Dichlorobenzene U 0.000600 0.00500
1,4-Dichlorobenzene U 0.000700 0.00500
Dichlorodifluoromethane U 0.00161 0.00250
1,1-Dichloroethane U 0.000491 0.00250
1,2-Dichloroethane U 0.000649 0.00250
1,1-Dichloroethene U 0.000606 0.00250
cis-1,2-Dichloroethene U 0.000734 0.00250
trans-1,2-Dichloroethene U 0.00104 0.00500
1,2-Dichloropropane U 0.00142 0.00500
1,1-Dichloropropene U 0.000809 0.00250
1,3-Dichloropropane U 0.000501 0.00500
cis-1,3-Dichloropropene U 0.000757 0.00250
trans-1,3-Dichloropropene U 0.00114 0.00500
2,2-Dichloropropane U 0.00138 0.00250
Di-isopropyl ether U 0.000410 0.00100
Ethylbenzene U 0.000737 0.00250
Hexachloro-1,3-butadiene U 0.00600 0.0250
Isopropylbenzene U 0.000425 0.00250
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Cp
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Tc
3
Ss
4
Cn
5
Sr
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Qc
7
Gl
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Al
9
Sc
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QUALITY CONTROL SUMMARYWG1705462V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 7 7 6 2 6 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6 , 0 7 , 0 8
Method Blank (MB)
(MB) R3681629-2 07/15/21 03:31
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
p-Isopropyltoluene U 0.00255 0.00500
2-Butanone (MEK) U 0.0635 0.100
Methylene Chloride U 0.00664 0.0250
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250
Methyl tert-butyl ether U 0.000350 0.00100
Naphthalene U 0.00488 0.0125
n-Propylbenzene U 0.000950 0.00500
Styrene U 0.000229 0.0125
1,1,1,2-Tetrachloroethane U 0.000948 0.00250
1,1,2,2-Tetrachloroethane U 0.000695 0.00250
Tetrachloroethene U 0.000896 0.00250
Toluene U 0.00130 0.00500
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250
1,2,3-Trichlorobenzene U 0.00733 0.0125
1,2,4-Trichlorobenzene U 0.00440 0.0125
1,1,1-Trichloroethane U 0.000923 0.00250
1,1,2-Trichloroethane U 0.000597 0.00250
Trichloroethene U 0.000584 0.00100
Trichlorofluoromethane U 0.000827 0.00250
1,2,3-Trichloropropane U 0.00162 0.0125
1,2,3-Trimethylbenzene U 0.00158 0.00500
1,2,4-Trimethylbenzene U 0.00158 0.00500
1,3,5-Trimethylbenzene U 0.00200 0.00500
Vinyl chloride U 0.00116 0.00250
Xylenes, Total U 0.000880 0.00650
(S) Toluene-d8 105 75.0-131
(S) 4-Bromofluorobenzene 95.1 67.0-138
(S) 1,2-Dichloroethane-d4 112 70.0-130
Laboratory Control Sample (LCS)
(LCS) R3681629-1 07/15/21 02:33
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte mg/kg mg/kg % %
Acetone 0.625 0.616 98.6 10.0-160
Acrylonitrile 0.625 0.775 124 45.0-153
Benzene 0.125 0.123 98.4 70.0-123
Bromobenzene 0.125 0.143 114 73.0-121
Bromodichloromethane 0.125 0.126 101 73.0-121
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Cn
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Qc
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Gl
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Al
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QUALITY CONTROL SUMMARYWG1705462V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 7 7 6 2 6 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6 , 0 7 , 0 8
Laboratory Control Sample (LCS)
(LCS) R3681629-1 07/15/21 02:33
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
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QUALITY CONTROL SUMMARYWG1705462V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 7 7 6 2 6 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6 , 0 7 , 0 8
Laboratory Control Sample (LCS)
(LCS) R3681629-1 07/15/21 02:33
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
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QUALITY CONTROL SUMMARYWG1705859V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 7 7 6 2 6 - 1 0 , 1 1 , 1 2 , 1 3 , 1 4 , 1 5 , 1 6
Method Blank (MB)
(MB) R3681398-3 07/15/21 10:13
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Acetone U 0.0365 0.0500
Acrylonitrile U 0.00361 0.0125
Benzene U 0.000467 0.00100
Bromobenzene U 0.000900 0.0125
Bromodichloromethane U 0.000725 0.00250
Bromoform U 0.00117 0.0250
Bromomethane U 0.00197 0.0125
n-Butylbenzene U 0.00525 0.0125
sec-Butylbenzene U 0.00288 0.0125
tert-Butylbenzene U 0.00195 0.00500
Carbon tetrachloride U 0.000898 0.00500
Chlorobenzene U 0.000210 0.00250
Chlorodibromomethane U 0.000612 0.00250
Chloroethane U 0.00170 0.00500
Chloroform U 0.00103 0.00250
Chloromethane U 0.00435 0.0125
2-Chlorotoluene U 0.000865 0.00250
4-Chlorotoluene U 0.000450 0.00500
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250
1,2-Dibromoethane U 0.000648 0.00250
Dibromomethane U 0.000750 0.00500
1,2-Dichlorobenzene U 0.000425 0.00500
1,3-Dichlorobenzene U 0.000600 0.00500
1,4-Dichlorobenzene U 0.000700 0.00500
Dichlorodifluoromethane U 0.00161 0.00250
1,1-Dichloroethane U 0.000491 0.00250
1,2-Dichloroethane U 0.000649 0.00250
1,1-Dichloroethene U 0.000606 0.00250
cis-1,2-Dichloroethene U 0.000734 0.00250
trans-1,2-Dichloroethene U 0.00104 0.00500
1,2-Dichloropropane U 0.00142 0.00500
1,1-Dichloropropene U 0.000809 0.00250
1,3-Dichloropropane U 0.000501 0.00500
cis-1,3-Dichloropropene U 0.000757 0.00250
trans-1,3-Dichloropropene U 0.00114 0.00500
2,2-Dichloropropane U 0.00138 0.00250
Di-isopropyl ether U 0.000410 0.00100
Ethylbenzene U 0.000737 0.00250
Hexachloro-1,3-butadiene U 0.00600 0.0250
Isopropylbenzene U 0.000425 0.00250
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
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Qc
7
Gl
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Al
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Sc
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QUALITY CONTROL SUMMARYWG1705859V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 7 7 6 2 6 - 1 0 , 1 1 , 1 2 , 1 3 , 1 4 , 1 5 , 1 6
Method Blank (MB)
(MB) R3681398-3 07/15/21 10:13
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
p-Isopropyltoluene U 0.00255 0.00500
2-Butanone (MEK) U 0.0635 0.100
Methylene Chloride U 0.00664 0.0250
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250
Methyl tert-butyl ether U 0.000350 0.00100
Naphthalene U 0.00488 0.0125
n-Propylbenzene U 0.000950 0.00500
Styrene U 0.000229 0.0125
1,1,1,2-Tetrachloroethane U 0.000948 0.00250
1,1,2,2-Tetrachloroethane U 0.000695 0.00250
Tetrachloroethene U 0.000896 0.00250
Toluene U 0.00130 0.00500
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250
1,2,3-Trichlorobenzene U 0.00733 0.0125
1,2,4-Trichlorobenzene U 0.00440 0.0125
1,1,1-Trichloroethane U 0.000923 0.00250
1,1,2-Trichloroethane U 0.000597 0.00250
Trichloroethene U 0.000584 0.00100
Trichlorofluoromethane U 0.000827 0.00250
1,2,3-Trichloropropane U 0.00162 0.0125
1,2,3-Trimethylbenzene U 0.00158 0.00500
1,2,4-Trimethylbenzene U 0.00158 0.00500
1,3,5-Trimethylbenzene U 0.00200 0.00500
Vinyl chloride U 0.00116 0.00250
Xylenes, Total U 0.000880 0.00650
(S) Toluene-d8 105 75.0-131
(S) 4-Bromofluorobenzene 95.3 67.0-138
(S) 1,2-Dichloroethane-d4 96.6 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
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QUALITY CONTROL SUMMARYWG1705859V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 7 7 6 2 6 - 1 0 , 1 1 , 1 2 , 1 3 , 1 4 , 1 5 , 1 6
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
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QUALITY CONTROL SUMMARYWG1705859V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 7 7 6 2 6 - 1 0 , 1 1 , 1 2 , 1 3 , 1 4 , 1 5 , 1 6
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
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QUALITY CONTROL SUMMARYWG1705859V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 7 7 6 2 6 - 1 0 , 1 1 , 1 2 , 1 3 , 1 4 , 1 5 , 1 6
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QUALITY CONTROL SUMMARYWG1705859V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 7 7 6 2 6 - 1 0 , 1 1 , 1 2 , 1 3 , 1 4 , 1 5 , 1 6
Xylenes, Total 0.375 U 0.206 0.295 54.9 78.7 1 10.0-160 35.5 38
(S) Toluene-d8 94.7 93.8 75.0-131
(S) 4-Bromofluorobenzene 88.8 82.6 67.0-138
(S) 1,2-Dichloroethane-d4 99.6 98.9 70.0-130
1
Cp
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Tc
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Ss
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Cn
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Sr
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Qc
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Gl
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Al
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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.
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.
LimitsThese 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.
QualifierThis column provides a letter and/or number designation that corresponds to additional information concerning the resultreported. 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 foreach 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 andtimes of preparation and/or analysis.
Qualifier Description
J The identification of the analyte is acceptable; the reported value is an estimate.
J3 The associated batch QC was outside the established quality control range for precision.
J4 The associated batch QC was outside the established quality control range for accuracy.
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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122Alabama 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 ¹ TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹ DW21704
Georgia NELAP North Carolina ³ 41
Georgia ¹ 923 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 ⁶ KY90010 South Carolina 84004002
Kentucky ² 16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴ 2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵ LAB0152
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 ⁵ 1461.02 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.
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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 National12065 Lebanon Rd Mount Ju l ie t , TN 37122 615 -758-5858 800-767-5859 www.pacenat iona l . com
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July 20, 2021
Chris WardPro ject Manager
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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 withinthe report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental sampleshave 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]
Chris WardPro jec t Manager
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Chris WardPro jec t Manager
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Xylenes, Total 6.45 U 2.95 5.41 45.7 83.9 20 10.0-160 J3 58.9 38
(S) Toluene-d8 106 107 75.0-131
(S) 4-Bromofluorobenzene 101 101 67.0-138
(S) 1,2-Dichloroethane-d4 85.6 84.1 70.0-130
Sample Narrative:
OS: Non-target compounds too high to run at a lower dilution.
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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.
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.
LimitsThese 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.
QualifierThis column provides a letter and/or number designation that corresponds to additional information concerning the resultreported. 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 foreach 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 andtimes of preparation and/or analysis.
Qualifier Description
J The identification of the analyte is acceptable; the reported value is an estimate.
J3 The associated batch QC was outside the established quality control range for precision.
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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122Alabama 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 ¹ TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹ DW21704
Georgia NELAP North Carolina ³ 41
Georgia ¹ 923 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 ⁶ KY90010 South Carolina 84004002
Kentucky ² 16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴ 2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵ LAB0152
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 ⁵ 1461.02 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.
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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 National12065 Lebanon Rd Mount Ju l ie t , TN 37122 615 -758-5858 800-767-5859 www.pacenat iona l . com
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July 29, 2021
Chris WardPro ject Manager
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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 withinthe report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental sampleshave 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]
Chris WardPro jec t Manager
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(S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 96.7 WG1711789
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QUALITY CONTROL SUMMARYWG1711789V o l a t i l e O r g a n i c C o m p o u n d s ( M S ) b y M e t h o d T O - 1 5 L 1 3 8 2 5 9 6 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6
Method Blank (MB)
(MB) R3684187-3 07/26/21 09:36
MB Result MB Qualifier MB MDL MB RDL
Analyte ppbv ppbv ppbv
Acetone U 0.584 1.25
Allyl Chloride U 0.114 0.200
Benzene U 0.0715 0.200
Benzyl Chloride U 0.0598 0.200
Bromodichloromethane U 0.0702 0.200
Bromoform U 0.0732 0.600
Bromomethane U 0.0982 0.200
1,3-Butadiene U 0.104 2.00
Carbon disulfide U 0.102 0.200
Carbon tetrachloride U 0.0732 0.200
Chlorobenzene U 0.0832 0.200
Chloroethane U 0.0996 0.200
Chloroform U 0.0717 0.200
Chloromethane U 0.103 0.200
2-Chlorotoluene U 0.0828 0.200
Cyclohexane U 0.0753 0.200
Dibromochloromethane U 0.0727 0.200
1,2-Dibromoethane U 0.0721 0.200
1,2-Dichlorobenzene U 0.128 0.200
1,3-Dichlorobenzene U 0.182 0.200
1,4-Dichlorobenzene U 0.0557 0.200
1,2-Dichloroethane U 0.0700 0.200
1,1-Dichloroethane U 0.0723 0.200
1,1-Dichloroethene U 0.0762 0.200
cis-1,2-Dichloroethene U 0.0784 0.200
trans-1,2-Dichloroethene U 0.0673 0.200
1,2-Dichloropropane U 0.0760 0.200
cis-1,3-Dichloropropene U 0.0689 0.200
trans-1,3-Dichloropropene U 0.0728 0.200
1,4-Dioxane U 0.0833 0.200
Ethylbenzene U 0.0835 0.200
4-Ethyltoluene U 0.0783 0.200
Trichlorofluoromethane U 0.0819 0.200
Dichlorodifluoromethane U 0.137 0.200
1,1,2-Trichlorotrifluoroethane U 0.0793 0.200
1,2-Dichlorotetrafluoroethane U 0.0890 0.200
Heptane U 0.104 0.200
Hexachloro-1,3-butadiene U 0.105 0.630
n-Hexane U 0.206 0.630
Isopropylbenzene U 0.0777 0.200
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QUALITY CONTROL SUMMARYWG1711789V o l a t i l e O r g a n i c C o m p o u n d s ( M S ) b y M e t h o d T O - 1 5 L 1 3 8 2 5 9 6 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6
Method Blank (MB)
(MB) R3684187-3 07/26/21 09:36
MB Result MB Qualifier MB MDL MB RDL
Analyte ppbv ppbv ppbv
Methylene Chloride U 0.0979 0.200
Methyl Butyl Ketone U 0.133 1.25
2-Butanone (MEK) U 0.0814 1.25
4-Methyl-2-pentanone (MIBK) U 0.0765 1.25
Methyl Methacrylate U 0.0876 0.200
MTBE U 0.0647 0.200
Naphthalene U 0.350 0.630
2-Propanol U 0.264 1.25
Propene 0.318 J 0.0932 1.25
Styrene U 0.0788 0.200
1,1,2,2-Tetrachloroethane U 0.0743 0.200
Tetrachloroethylene U 0.0814 0.200
Tetrahydrofuran U 0.0734 0.200
Toluene U 0.0870 0.500
1,2,4-Trichlorobenzene U 0.148 0.630
1,1,1-Trichloroethane U 0.0736 0.200
1,1,2-Trichloroethane U 0.0775 0.200
Trichloroethylene U 0.0680 0.200
1,2,4-Trimethylbenzene U 0.0764 0.200
1,3,5-Trimethylbenzene U 0.0779 0.200
2,2,4-Trimethylpentane U 0.133 0.200
Vinyl chloride U 0.0949 0.200
Vinyl Bromide U 0.0852 0.200
Vinyl acetate U 0.116 0.200
m&p-Xylene U 0.135 0.400
o-Xylene U 0.0828 0.200
Ethanol U 0.265 1.25
(S) 1,4-Bromofluorobenzene 92.6 60.0-140
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
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QUALITY CONTROL SUMMARYWG1711789V o l a t i l e O r g a n i c C o m p o u n d s ( M S ) b y M e t h o d T O - 1 5 L 1 3 8 2 5 9 6 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
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QUALITY CONTROL SUMMARYWG1711789V o l a t i l e O r g a n i c C o m p o u n d s ( M S ) b y M e t h o d T O - 1 5 L 1 3 8 2 5 9 6 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
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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.
LimitsThese 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.
QualifierThis column provides a letter and/or number designation that corresponds to additional information concerning the resultreported. 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 foreach 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 andtimes of preparation and/or analysis.
Qualifier Description
E The analyte concentration exceeds the upper limit of the calibration range of the instrument established by the initial calibration (ICAL).
J The identification of the analyte is acceptable; the reported value is an estimate.
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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122Alabama 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 ¹ TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹ DW21704
Georgia NELAP North Carolina ³ 41
Georgia ¹ 923 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 ⁶ KY90010 South Carolina 84004002
Kentucky ² 16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴ 2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵ LAB0152
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 ⁵ 1461.02 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.
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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 National12065 Lebanon Rd Mount Ju l ie t , TN 37122 615 -758-5858 800-767-5859 www.pacenat iona l . com
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August 02, 2021
Chris WardPro ject Manager
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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 withinthe report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental sampleshave 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]
Chris WardPro jec t Manager
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Naphthalene U 0.00100 0.00500 1 07/27/2021 02:36 WG1712027
n-Propylbenzene U 0.0000993 0.00100 1 07/27/2021 02:36 WG1712027
Styrene U 0.000118 0.00100 1 07/27/2021 02:36 WG1712027
1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1 07/27/2021 02:36 WG1712027
1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1 07/27/2021 02:36 WG1712027
Tetrachloroethene U 0.000300 0.00100 1 07/27/2021 02:36 WG1712027
Toluene U 0.000278 0.00100 1 07/27/2021 02:36 WG1712027
1,2,3-Trichlorobenzene U J4 0.000230 0.00100 1 07/27/2021 02:36 WG1712027
1,2,4-Trichlorobenzene U 0.000481 0.00100 1 07/27/2021 02:36 WG1712027
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SAMPLE RESULTS - 08L 1 3 8 2 6 3 1
MW-17C o l l e c t e d d a t e / t i m e : 0 7 / 2 3 / 2 1 1 3 : 5 5
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
1,1,1-Trichloroethane U 0.000149 0.00100 1 07/27/2021 02:36 WG1712027
1,1,2-Trichloroethane U 0.000158 0.00100 1 07/27/2021 02:36 WG1712027
Trichloroethene U 0.000190 0.00100 1 07/27/2021 02:36 WG1712027
Trichlorofluoromethane U 0.000160 0.00500 1 07/27/2021 02:36 WG1712027
1,2,3-Trichloropropane U 0.000237 0.00250 1 07/27/2021 02:36 WG1712027
1,2,4-Trimethylbenzene U 0.000322 0.00100 1 07/27/2021 02:36 WG1712027
1,3,5-Trimethylbenzene U 0.000104 0.00100 1 07/27/2021 02:36 WG1712027
Vinyl chloride U 0.000234 0.00100 1 07/27/2021 02:36 WG1712027
Xylenes, Total U 0.000174 0.00300 1 07/27/2021 02:36 WG1712027
(S) Toluene-d8 96.4 80.0-120 07/27/2021 02:36 WG1712027
(S) 4-Bromofluorobenzene 98.7 77.0-126 07/27/2021 02:36 WG1712027
(S) 1,2-Dichloroethane-d4 109 70.0-130 07/27/2021 02:36 WG1712027
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SAMPLE RESULTS - 09L 1 3 8 2 6 3 1
MW-27C o l l e c t e d d a t e / t i m e : 0 7 / 2 3 / 2 1 1 3 : 2 0
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Acetone U 0.0113 0.0500 1 07/27/2021 02:55 WG1712027
Acrolein U 0.00254 0.0500 1 07/27/2021 02:55 WG1712027
Acrylonitrile U 0.000671 0.0100 1 07/27/2021 02:55 WG1712027
Benzene U 0.0000941 0.00100 1 07/27/2021 02:55 WG1712027
Bromobenzene U 0.000118 0.00100 1 07/27/2021 02:55 WG1712027
Bromodichloromethane U 0.000136 0.00100 1 07/27/2021 02:55 WG1712027
Bromoform U 0.000129 0.00100 1 07/27/2021 02:55 WG1712027
Bromomethane U 0.000605 0.00500 1 07/27/2021 02:55 WG1712027
n-Butylbenzene U J4 0.000157 0.00100 1 07/27/2021 02:55 WG1712027
sec-Butylbenzene U 0.000125 0.00100 1 07/27/2021 02:55 WG1712027
tert-Butylbenzene U 0.000127 0.00100 1 07/27/2021 02:55 WG1712027
Carbon tetrachloride U 0.000128 0.00100 1 07/27/2021 02:55 WG1712027
Chlorobenzene U 0.000116 0.00100 1 07/27/2021 02:55 WG1712027
Chlorodibromomethane U 0.000140 0.00100 1 07/27/2021 02:55 WG1712027
Chloroethane U 0.000192 0.00500 1 07/27/2021 02:55 WG1712027
2-Chloroethyl vinyl ether U 0.000575 0.0500 1 07/27/2021 02:55 WG1712027
Chloroform U 0.000111 0.00500 1 07/27/2021 02:55 WG1712027
Chloromethane U 0.000960 0.00250 1 07/27/2021 02:55 WG1712027
2-Chlorotoluene U 0.000106 0.00100 1 07/27/2021 02:55 WG1712027
4-Chlorotoluene U 0.000114 0.00100 1 07/27/2021 02:55 WG1712027
1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1 07/27/2021 02:55 WG1712027
1,2-Dibromoethane U 0.000126 0.00100 1 07/27/2021 02:55 WG1712027
Dibromomethane U 0.000122 0.00100 1 07/27/2021 02:55 WG1712027
1,2-Dichlorobenzene U 0.000107 0.00100 1 07/27/2021 02:55 WG1712027
1,3-Dichlorobenzene U 0.000110 0.00100 1 07/27/2021 02:55 WG1712027
1,4-Dichlorobenzene U 0.000120 0.00100 1 07/27/2021 02:55 WG1712027
Dichlorodifluoromethane U 0.000374 0.00500 1 07/27/2021 02:55 WG1712027
1,1-Dichloroethane U 0.000100 0.00100 1 07/27/2021 02:55 WG1712027
1,2-Dichloroethane U 0.0000819 0.00100 1 07/27/2021 02:55 WG1712027
1,1-Dichloroethene U 0.000188 0.00100 1 07/27/2021 02:55 WG1712027
cis-1,2-Dichloroethene U 0.000126 0.00100 1 07/27/2021 02:55 WG1712027
trans-1,2-Dichloroethene U 0.000149 0.00100 1 07/27/2021 02:55 WG1712027
1,2-Dichloropropane U 0.000149 0.00100 1 07/27/2021 02:55 WG1712027
1,1-Dichloropropene U 0.000142 0.00100 1 07/27/2021 02:55 WG1712027
1,3-Dichloropropane U 0.000110 0.00100 1 07/27/2021 02:55 WG1712027
cis-1,3-Dichloropropene U 0.000111 0.00100 1 07/27/2021 02:55 WG1712027
trans-1,3-Dichloropropene U 0.000118 0.00100 1 07/27/2021 02:55 WG1712027
2,2-Dichloropropane U 0.000161 0.00100 1 07/27/2021 02:55 WG1712027
Di-isopropyl ether U 0.000105 0.00100 1 07/27/2021 02:55 WG1712027
Ethylbenzene U 0.000137 0.00100 1 07/27/2021 02:55 WG1712027
Hexachloro-1,3-butadiene U 0.000337 0.00100 1 07/27/2021 02:55 WG1712027
Isopropylbenzene U 0.000105 0.00100 1 07/27/2021 02:55 WG1712027
p-Isopropyltoluene U 0.000120 0.00100 1 07/27/2021 02:55 WG1712027
2-Butanone (MEK) U 0.00119 0.0100 1 07/27/2021 02:55 WG1712027
Methylene Chloride U 0.000430 0.00500 1 07/27/2021 02:55 WG1712027
4-Methyl-2-pentanone (MIBK) U 0.000478 0.0100 1 07/27/2021 02:55 WG1712027
Methyl tert-butyl ether U 0.000101 0.00100 1 07/27/2021 02:55 WG1712027
Naphthalene U 0.00100 0.00500 1 07/27/2021 02:55 WG1712027
n-Propylbenzene U 0.0000993 0.00100 1 07/27/2021 02:55 WG1712027
Styrene U 0.000118 0.00100 1 07/27/2021 02:55 WG1712027
1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1 07/27/2021 02:55 WG1712027
1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1 07/27/2021 02:55 WG1712027
Tetrachloroethene U 0.000300 0.00100 1 07/27/2021 02:55 WG1712027
Toluene U 0.000278 0.00100 1 07/27/2021 02:55 WG1712027
1,2,3-Trichlorobenzene U J4 0.000230 0.00100 1 07/27/2021 02:55 WG1712027
1,2,4-Trichlorobenzene U 0.000481 0.00100 1 07/27/2021 02:55 WG1712027
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SAMPLE RESULTS - 09L 1 3 8 2 6 3 1
MW-27C o l l e c t e d d a t e / t i m e : 0 7 / 2 3 / 2 1 1 3 : 2 0
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
1,1,1-Trichloroethane U 0.000149 0.00100 1 07/27/2021 02:55 WG1712027
1,1,2-Trichloroethane U 0.000158 0.00100 1 07/27/2021 02:55 WG1712027
Trichloroethene U 0.000190 0.00100 1 07/27/2021 02:55 WG1712027
Trichlorofluoromethane U 0.000160 0.00500 1 07/27/2021 02:55 WG1712027
1,2,3-Trichloropropane U 0.000237 0.00250 1 07/27/2021 02:55 WG1712027
1,2,4-Trimethylbenzene U 0.000322 0.00100 1 07/27/2021 02:55 WG1712027
1,3,5-Trimethylbenzene U 0.000104 0.00100 1 07/27/2021 02:55 WG1712027
Vinyl chloride U 0.000234 0.00100 1 07/27/2021 02:55 WG1712027
Xylenes, Total U 0.000174 0.00300 1 07/27/2021 02:55 WG1712027
(S) Toluene-d8 95.3 80.0-120 07/27/2021 02:55 WG1712027
(S) 4-Bromofluorobenzene 99.9 77.0-126 07/27/2021 02:55 WG1712027
(S) 1,2-Dichloroethane-d4 110 70.0-130 07/27/2021 02:55 WG1712027
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QUALITY CONTROL SUMMARYWG1712027V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 8 2 6 3 1 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6 , 0 7 , 0 8 , 0 9
Method Blank (MB)
(MB) R3686403-3 07/26/21 21:49
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
Acetone U 0.0113 0.0500
Acrolein U 0.00254 0.0500
Acrylonitrile U 0.000671 0.0100
Benzene U 0.0000941 0.00100
Bromobenzene U 0.000118 0.00100
Bromodichloromethane U 0.000136 0.00100
Bromoform U 0.000129 0.00100
Bromomethane U 0.000605 0.00500
n-Butylbenzene U 0.000157 0.00100
sec-Butylbenzene U 0.000125 0.00100
tert-Butylbenzene U 0.000127 0.00100
Carbon tetrachloride U 0.000128 0.00100
Chlorobenzene U 0.000116 0.00100
Chlorodibromomethane U 0.000140 0.00100
Chloroethane U 0.000192 0.00500
2-Chloroethyl vinyl ether U 0.000575 0.0500
Chloroform U 0.000111 0.00500
Chloromethane U 0.000960 0.00250
2-Chlorotoluene U 0.000106 0.00100
4-Chlorotoluene U 0.000114 0.00100
1,2-Dibromo-3-Chloropropane U 0.000276 0.00500
1,2-Dibromoethane U 0.000126 0.00100
Dibromomethane U 0.000122 0.00100
1,2-Dichlorobenzene U 0.000107 0.00100
1,3-Dichlorobenzene U 0.000110 0.00100
1,4-Dichlorobenzene U 0.000120 0.00100
Dichlorodifluoromethane U 0.000374 0.00500
1,1-Dichloroethane U 0.000100 0.00100
1,2-Dichloroethane U 0.0000819 0.00100
1,1-Dichloroethene U 0.000188 0.00100
cis-1,2-Dichloroethene U 0.000126 0.00100
trans-1,2-Dichloroethene U 0.000149 0.00100
1,2-Dichloropropane U 0.000149 0.00100
1,1-Dichloropropene U 0.000142 0.00100
1,3-Dichloropropane U 0.000110 0.00100
cis-1,3-Dichloropropene U 0.000111 0.00100
trans-1,3-Dichloropropene U 0.000118 0.00100
2,2-Dichloropropane U 0.000161 0.00100
Di-isopropyl ether U 0.000105 0.00100
Ethylbenzene U 0.000137 0.00100
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QUALITY CONTROL SUMMARYWG1712027V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 8 2 6 3 1 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6 , 0 7 , 0 8 , 0 9
Method Blank (MB)
(MB) R3686403-3 07/26/21 21:49
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
Hexachloro-1,3-butadiene U 0.000337 0.00100
Isopropylbenzene U 0.000105 0.00100
p-Isopropyltoluene U 0.000120 0.00100
2-Butanone (MEK) U 0.00119 0.0100
Methylene Chloride U 0.000430 0.00500
4-Methyl-2-pentanone (MIBK) U 0.000478 0.0100
Methyl tert-butyl ether U 0.000101 0.00100
Naphthalene U 0.00100 0.00500
n-Propylbenzene U 0.0000993 0.00100
Styrene U 0.000118 0.00100
1,1,1,2-Tetrachloroethane U 0.000147 0.00100
1,1,2,2-Tetrachloroethane U 0.000133 0.00100
Tetrachloroethene U 0.000300 0.00100
Toluene U 0.000278 0.00100
1,2,3-Trichlorobenzene U 0.000230 0.00100
1,2,4-Trichlorobenzene U 0.000481 0.00100
1,1,1-Trichloroethane U 0.000149 0.00100
1,1,2-Trichloroethane U 0.000158 0.00100
Trichloroethene U 0.000190 0.00100
Trichlorofluoromethane U 0.000160 0.00500
1,2,3-Trichloropropane U 0.000237 0.00250
1,2,4-Trimethylbenzene U 0.000322 0.00100
1,3,5-Trimethylbenzene U 0.000104 0.00100
Vinyl chloride U 0.000234 0.00100
Xylenes, Total U 0.000174 0.00300
(S) Toluene-d8 96.7 80.0-120
(S) 4-Bromofluorobenzene 102 77.0-126
(S) 1,2-Dichloroethane-d4 98.9 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
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QUALITY CONTROL SUMMARYWG1712027V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 8 2 6 3 1 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6 , 0 7 , 0 8 , 0 9
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
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QUALITY CONTROL SUMMARYWG1712027V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 8 2 6 3 1 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6 , 0 7 , 0 8 , 0 9
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
Xylenes, Total 0.0150 0.0137 0.0132 91.3 88.0 79.0-123 3.72 20
(S) Toluene-d8 98.7 98.8 80.0-120
(S) 4-Bromofluorobenzene 104 104 77.0-126
(S) 1,2-Dichloroethane-d4 109 107 70.0-130
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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.
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.
LimitsThese 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.
QualifierThis column provides a letter and/or number designation that corresponds to additional information concerning the resultreported. 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 foreach 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 andtimes of preparation and/or analysis.
Qualifier Description
J The identification of the analyte is acceptable; the reported value is an estimate.
J4 The associated batch QC was outside the established quality control range for accuracy.
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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122Alabama 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 ¹ TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹ DW21704
Georgia NELAP North Carolina ³ 41
Georgia ¹ 923 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 ⁶ KY90010 South Carolina 84004002
Kentucky ² 16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴ 2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵ LAB0152
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 ⁵ 1461.02 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.
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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 National12065 Lebanon Rd Mount Ju l ie t , TN 37122 615 -758-5858 800-767-5859 www.pacenat iona l . com
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September 08, 2021
Chris WardPro ject Manager
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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 withinthe report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental sampleshave 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]
Chris WardPro jec t Manager
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Naphthalene U J4 0.00488 0.0125 1 09/05/2021 02:46 WG1735230
n-Propylbenzene U 0.000950 0.00500 1 09/05/2021 02:46 WG1735230
Styrene U 0.000229 0.0125 1 09/05/2021 02:46 WG1735230
1,1,1,2-Tetrachloroethane U 0.000948 0.00250 1 09/05/2021 02:46 WG1735230
1,1,2,2-Tetrachloroethane U 0.000695 0.00250 1 09/05/2021 02:46 WG1735230
1,1,2-Trichlorotrifluoroethane U J4 0.000754 0.00250 1 09/05/2021 02:46 WG1735230
Tetrachloroethene U 0.000896 0.00250 1 09/05/2021 02:46 WG1735230
Toluene U 0.00130 0.00500 1 09/05/2021 02:46 WG1735230
1,2,3-Trichlorobenzene U J4 0.00733 0.0125 1 09/05/2021 02:46 WG1735230
1,2,4-Trichlorobenzene U 0.00440 0.0125 1 09/05/2021 02:46 WG1735230
1,1,1-Trichloroethane U 0.000923 0.00250 1 09/05/2021 02:46 WG1735230
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SAMPLE RESULTS - 06L 1 3 9 6 7 0 1
TMW-G 25'C o l l e c t e d d a t e / t i m e : 0 8 / 2 6 / 2 1 1 3 : 2 0
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte mg/kg mg/kg mg/kg date / time
1,1,2-Trichloroethane U 0.000597 0.00250 1 09/05/2021 02:46 WG1735230
Trichloroethene U 0.000584 0.00100 1 09/05/2021 02:46 WG1735230
Trichlorofluoromethane U 0.000827 0.00250 1 09/05/2021 02:46 WG1735230
1,2,3-Trichloropropane U 0.00162 0.0125 1 09/05/2021 02:46 WG1735230
1,2,4-Trimethylbenzene U 0.00158 0.00500 1 09/05/2021 02:46 WG1735230
1,2,3-Trimethylbenzene U 0.00158 0.00500 1 09/05/2021 02:46 WG1735230
1,3,5-Trimethylbenzene U 0.00200 0.00500 1 09/05/2021 02:46 WG1735230
Vinyl chloride U 0.00116 0.00250 1 09/05/2021 02:46 WG1735230
Xylenes, Total U 0.000880 0.00650 1 09/05/2021 02:46 WG1735230
(S) Toluene-d8 103 75.0-131 09/05/2021 02:46 WG1735230
(S) 4-Bromofluorobenzene 102 67.0-138 09/05/2021 02:46 WG1735230
(S) 1,2-Dichloroethane-d4 104 70.0-130 09/05/2021 02:46 WG1735230
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QUALITY CONTROL SUMMARYWG1735230V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 9 6 7 0 1 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6
Method Blank (MB)
(MB) R3701657-3 09/05/21 00:33
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Acetone U 0.0365 0.0500
Acrylonitrile U 0.00361 0.0125
Benzene U 0.000467 0.00100
Bromobenzene U 0.000900 0.0125
Bromodichloromethane U 0.000725 0.00250
Bromoform U 0.00117 0.0250
Bromomethane U 0.00197 0.0125
n-Butylbenzene U 0.00525 0.0125
sec-Butylbenzene U 0.00288 0.0125
tert-Butylbenzene U 0.00195 0.00500
Carbon tetrachloride U 0.000898 0.00500
Chlorobenzene U 0.000210 0.00250
Chlorodibromomethane U 0.000612 0.00250
Chloroethane U 0.00170 0.00500
Chloroform U 0.00103 0.00250
Chloromethane U 0.00435 0.0125
2-Chlorotoluene U 0.000865 0.00250
4-Chlorotoluene U 0.000450 0.00500
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250
1,2-Dibromoethane U 0.000648 0.00250
Dibromomethane U 0.000750 0.00500
1,2-Dichlorobenzene U 0.000425 0.00500
1,3-Dichlorobenzene U 0.000600 0.00500
1,4-Dichlorobenzene U 0.000700 0.00500
Dichlorodifluoromethane U 0.00161 0.00250
1,1-Dichloroethane U 0.000491 0.00250
1,2-Dichloroethane U 0.000649 0.00250
1,1-Dichloroethene U 0.000606 0.00250
cis-1,2-Dichloroethene U 0.000734 0.00250
trans-1,2-Dichloroethene U 0.00104 0.00500
1,2-Dichloropropane U 0.00142 0.00500
1,1-Dichloropropene U 0.000809 0.00250
1,3-Dichloropropane U 0.000501 0.00500
cis-1,3-Dichloropropene U 0.000757 0.00250
trans-1,3-Dichloropropene U 0.00114 0.00500
2,2-Dichloropropane U 0.00138 0.00250
Di-isopropyl ether U 0.000410 0.00100
Ethylbenzene U 0.000737 0.00250
Hexachloro-1,3-butadiene U 0.00600 0.0250
Isopropylbenzene U 0.000425 0.00250
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QUALITY CONTROL SUMMARYWG1735230V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 9 6 7 0 1 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6
Method Blank (MB)
(MB) R3701657-3 09/05/21 00:33
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
p-Isopropyltoluene U 0.00255 0.00500
2-Butanone (MEK) U 0.0635 0.100
Methylene Chloride U 0.00664 0.0250
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250
Methyl tert-butyl ether U 0.000350 0.00100
Naphthalene U 0.00488 0.0125
n-Propylbenzene U 0.000950 0.00500
Styrene U 0.000229 0.0125
1,1,1,2-Tetrachloroethane U 0.000948 0.00250
1,1,2,2-Tetrachloroethane U 0.000695 0.00250
Tetrachloroethene U 0.000896 0.00250
Toluene U 0.00130 0.00500
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250
1,2,3-Trichlorobenzene U 0.00733 0.0125
1,2,4-Trichlorobenzene U 0.00440 0.0125
1,1,1-Trichloroethane U 0.000923 0.00250
1,1,2-Trichloroethane U 0.000597 0.00250
Trichloroethene U 0.000584 0.00100
Trichlorofluoromethane U 0.000827 0.00250
1,2,3-Trichloropropane U 0.00162 0.0125
1,2,3-Trimethylbenzene U 0.00158 0.00500
1,2,4-Trimethylbenzene 0.00190 J 0.00158 0.00500
1,3,5-Trimethylbenzene U 0.00200 0.00500
Vinyl chloride U 0.00116 0.00250
Xylenes, Total U 0.000880 0.00650
(S) Toluene-d8 102 75.0-131
(S) 4-Bromofluorobenzene 103 67.0-138
(S) 1,2-Dichloroethane-d4 99.0 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
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QUALITY CONTROL SUMMARYWG1735230V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 9 6 7 0 1 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
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QUALITY CONTROL SUMMARYWG1735230V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 9 6 7 0 1 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
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QUALITY CONTROL SUMMARYWG1735230V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 9 6 7 0 1 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6
1,1,2,2-Tetrachloroethane 1.00 U 27.7 27.3 2770 2730 8 10.0-160 E J5 E J5 1.45 35
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QUALITY CONTROL SUMMARYWG1735230V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 9 6 7 0 1 - 0 1 , 0 2 , 0 3 , 0 4 , 0 5 , 0 6
Xylenes, Total 3.00 U 1.43 1.41 47.7 47.0 8 10.0-160 1.41 38
(S) Toluene-d8 95.3 93.7 75.0-131
(S) 4-Bromofluorobenzene 224 228 67.0-138 J1 J1
(S) 1,2-Dichloroethane-d4 113 111 70.0-130
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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.
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.
LimitsThese 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.
QualifierThis column provides a letter and/or number designation that corresponds to additional information concerning the resultreported. 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 foreach 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 andtimes of preparation and/or analysis.
Qualifier Description
E The analyte concentration exceeds the upper limit of the calibration range of the instrument established by the initial calibration (ICAL).
J The identification of the analyte is acceptable; the reported value is an estimate.
J1 Surrogate recovery limits have been exceeded; values are outside upper control limits.
J3 The associated batch QC was outside the established quality control range for precision.
J4 The associated batch QC was outside the established quality control range for accuracy.
J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high.
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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122Alabama 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 ¹ TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹ DW21704
Georgia NELAP North Carolina ³ 41
Georgia ¹ 923 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 ⁶ KY90010 South Carolina 84004002
Kentucky ² 16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴ 2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵ LAB0152
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 ⁵ 1461.02 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.
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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 National12065 Lebanon Rd Mount Ju l ie t , TN 37122 615 -758-5858 800-767-5859 www.pacenat iona l . com
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September 09, 2021
Chris WardPro ject Manager
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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 withinthe report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental sampleshave 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]
Chris WardPro jec t Manager
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Chris WardPro jec t Manager
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Vinyl chloride U 0.000234 0.00100 1 09/06/2021 02:22 WG1735518
Xylenes, Total 0.000725 J 0.000174 0.00300 1 09/06/2021 02:22 WG1735518
(S) Toluene-d8 97.8 80.0-120 09/06/2021 02:22 WG1735518
(S) 4-Bromofluorobenzene 96.6 77.0-126 09/06/2021 02:22 WG1735518
(S) 1,2-Dichloroethane-d4 114 70.0-130 09/06/2021 02:22 WG1735518
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QUALITY CONTROL SUMMARYWG1735518V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 9 7 7 6 0 - 0 1 , 0 2 , 0 3
Method Blank (MB)
(MB) R3702172-2 09/05/21 23:20
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
Acetone U 0.0113 0.0500
Acrolein U 0.00254 0.0500
Acrylonitrile U 0.000671 0.0100
Benzene U 0.0000941 0.00100
Bromobenzene U 0.000118 0.00100
Bromodichloromethane U 0.000136 0.00100
Bromoform U 0.000129 0.00100
Bromomethane U 0.000605 0.00500
n-Butylbenzene U 0.000157 0.00100
sec-Butylbenzene U 0.000125 0.00100
tert-Butylbenzene U 0.000127 0.00100
Carbon tetrachloride U 0.000128 0.00100
Chlorobenzene U 0.000116 0.00100
Chlorodibromomethane U 0.000140 0.00100
Chloroethane U 0.000192 0.00500
Chloroform U 0.000111 0.00500
Chloromethane U 0.000960 0.00250
2-Chlorotoluene U 0.000106 0.00100
4-Chlorotoluene U 0.000114 0.00100
1,2-Dibromo-3-Chloropropane U 0.000276 0.00500
1,2-Dibromoethane U 0.000126 0.00100
Dibromomethane U 0.000122 0.00100
1,2-Dichlorobenzene U 0.000107 0.00100
1,3-Dichlorobenzene U 0.000110 0.00100
1,4-Dichlorobenzene U 0.000120 0.00100
Dichlorodifluoromethane U 0.000374 0.00500
1,1-Dichloroethane U 0.000100 0.00100
1,2-Dichloroethane U 0.0000819 0.00100
1,1-Dichloroethene U 0.000188 0.00100
cis-1,2-Dichloroethene U 0.000126 0.00100
trans-1,2-Dichloroethene U 0.000149 0.00100
1,2-Dichloropropane U 0.000149 0.00100
1,1-Dichloropropene U 0.000142 0.00100
1,3-Dichloropropane U 0.000110 0.00100
cis-1,3-Dichloropropene U 0.000111 0.00100
trans-1,3-Dichloropropene U 0.000118 0.00100
2,2-Dichloropropane U 0.000161 0.00100
Di-isopropyl ether U 0.000105 0.00100
Ethylbenzene U 0.000137 0.00100
Hexachloro-1,3-butadiene U 0.000337 0.00100
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QUALITY CONTROL SUMMARYWG1735518V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 9 7 7 6 0 - 0 1 , 0 2 , 0 3
Method Blank (MB)
(MB) R3702172-2 09/05/21 23:20
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
Isopropylbenzene U 0.000105 0.00100
p-Isopropyltoluene U 0.000120 0.00100
2-Butanone (MEK) U 0.00119 0.0100
Methylene Chloride U 0.000430 0.00500
4-Methyl-2-pentanone (MIBK) U 0.000478 0.0100
Methyl tert-butyl ether U 0.000101 0.00100
Naphthalene U 0.00100 0.00500
n-Propylbenzene U 0.0000993 0.00100
Styrene U 0.000118 0.00100
1,1,1,2-Tetrachloroethane U 0.000147 0.00100
1,1,2,2-Tetrachloroethane U 0.000133 0.00100
Tetrachloroethene U 0.000300 0.00100
Toluene U 0.000278 0.00100
1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100
1,2,3-Trichlorobenzene U 0.000230 0.00100
1,2,4-Trichlorobenzene U 0.000481 0.00100
1,1,1-Trichloroethane U 0.000149 0.00100
1,1,2-Trichloroethane U 0.000158 0.00100
Trichloroethene U 0.000190 0.00100
Trichlorofluoromethane U 0.000160 0.00500
1,2,3-Trichloropropane U 0.000237 0.00250
1,2,3-Trimethylbenzene U 0.000104 0.00100
1,2,4-Trimethylbenzene U 0.000322 0.00100
1,3,5-Trimethylbenzene U 0.000104 0.00100
Vinyl chloride U 0.000234 0.00100
Xylenes, Total U 0.000174 0.00300
(S) Toluene-d8 98.9 80.0-120
(S) 4-Bromofluorobenzene 89.6 77.0-126
(S) 1,2-Dichloroethane-d4 109 70.0-130
Laboratory Control Sample (LCS)
(LCS) R3702172-1 09/05/21 22:39
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
Analyte mg/l mg/l % %
Acetone 0.0250 0.0265 106 19.0-160
Acrolein 0.0250 0.0357 143 10.0-160
Acrylonitrile 0.0250 0.0250 100 55.0-149
Benzene 0.00500 0.00510 102 70.0-123
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QUALITY CONTROL SUMMARYWG1735518V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 9 7 7 6 0 - 0 1 , 0 2 , 0 3
Laboratory Control Sample (LCS)
(LCS) R3702172-1 09/05/21 22:39
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
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QUALITY CONTROL SUMMARYWG1735518V o l a t i l e O r g a n i c C o m p o u n d s ( G C / M S ) b y M e t h o d 8 2 6 0 B L 1 3 9 7 7 6 0 - 0 1 , 0 2 , 0 3
Laboratory Control Sample (LCS)
(LCS) R3702172-1 09/05/21 22:39
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier
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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.
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.
LimitsThese 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.
QualifierThis column provides a letter and/or number designation that corresponds to additional information concerning the resultreported. 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 foreach 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 andtimes of preparation and/or analysis.
Qualifier Description
J The identification of the analyte is acceptable; the reported value is an estimate.
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Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122Alabama 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 ¹ TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹ DW21704
Georgia NELAP North Carolina ³ 41
Georgia ¹ 923 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 ⁶ KY90010 South Carolina 84004002
Kentucky ² 16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴ 2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵ LAB0152
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 ⁵ 1461.02 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.
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Anticipated Date of Construction: __________________
Date Notice Submitted: ___________________________
(Must be at least 3 days prior to construction)
ACKNOWLEDGEMENT FROM STATE ENGINEER'S OFFICE FOR OFFICE USE ONLY
_____________________________________________ - MH PROCESSED BY __________________________________
DIV. WD BAS MD DATE ACKNOWLEDGED _______________________________
CONDITIONS OF MONITORING HOLE ACKNOWLEDGEMENT
A COPY OF THE WRITTEN NOTICE OR ACKNOWLEDGEMENT SHALL BE AVAILABLE AT THE DRILLING SITE.
1) Notice was provided to the State Engineer at least 72 hours prior to construction of monitoring & observation hole(s).
2) Construction of the hole(s) must be completed within 90 days of the date notice was given to the State Engineer. Testing and/or pumping shall not exceed a total of 200 hours unless prior written approval is obtained from the State Engineer. Water diverted during testing must not be used for beneficial purposes. The owner of the hole(s) is responsible for obtaining permit(s) and complying with all
rules and regulations pertaining to the discharge of fluids produced during testing.
3) All work must comply with the Water Well Construction Rules, 2 CCR 402-2. Standard permit application and work report forms are found on the DWR website at dwr.colorado.gov. Well Construction and Yield Estimate Reports (GWS-31) must be completed for each
hole drilled. The licensed contractor or authorized individual must submit the completed forms to this office within 60 days of monitoring
hole completion. Aquifer testing information must be submitted on Well Yield Test Report (GWS-39).
4) Unless a well permit is obtained or variance approved, the hole(s) must be plugged and sealed within eighteen (18) months after construction. An Abandonment Report (GWS-09) must be submitted within 60 days of plugging & sealing. The above MH acknowledgement number, owner's structure name, and owner's name and address must be provided on all well permit application(s),
well construction and abandonment reports.
5) A MONITORING HOLE CANNOT BE CONVERTED TO A PRODUCTION WATER WELL, except for purposes of remediation (recovery) or as a permanent dewatering system, if constructed in accordance with the Water Well Construction Rules and policies of the State Engineer.
6) IF HOLES WILL NOT BE CONSTRUCTED UNDER THIS NOTICE WITHIN 90 DAYS, PLEASE WRITE “NO HOLES CONSTRUCTED” ON A COPY
OF THE ACKNOWLEDGED NOTICE WITH THE FILE NUMBER AND EMAIL TO THE DIVISION OF WATER RESOURCES AT
Anticipated Date of Construction: __________________
Date Notice Submitted: ___________________________
(Must be at least 3 days prior to construction)
ACKNOWLEDGEMENT FROM STATE ENGINEER'S OFFICE FOR OFFICE USE ONLY
_____________________________________________ - MH PROCESSED BY __________________________________
DIV. WD BAS MD DATE ACKNOWLEDGED _______________________________
CONDITIONS OF MONITORING HOLE ACKNOWLEDGEMENT
A COPY OF THE WRITTEN NOTICE OR ACKNOWLEDGEMENT SHALL BE AVAILABLE AT THE DRILLING SITE.
1) Notice was provided to the State Engineer at least 72 hours prior to construction of monitoring & observation hole(s).
2) Construction of the hole(s) must be completed within 90 days of the date notice was given to the State Engineer. Testing and/or pumping shall not exceed a total of 200 hours unless prior written approval is obtained from the State Engineer. Water diverted during testing must not be used for beneficial purposes. The owner of the hole(s) is responsible for obtaining permit(s) and complying with all
rules and regulations pertaining to the discharge of fluids produced during testing.
3) All work must comply with the Water Well Construction Rules, 2 CCR 402-2. Standard permit application and work report forms are found on the DWR website at dwr.colorado.gov. Well Construction and Yield Estimate Reports (GWS-31) must be completed for each
hole drilled. The licensed contractor or authorized individual must submit the completed forms to this office within 60 days of monitoring
hole completion. Aquifer testing information must be submitted on Well Yield Test Report (GWS-39).
4) Unless a well permit is obtained or variance approved, the hole(s) must be plugged and sealed within eighteen (18) months after construction. An Abandonment Report (GWS-09) must be submitted within 60 days of plugging & sealing. The above MH acknowledgement number, owner's structure name, and owner's name and address must be provided on all well permit application(s),
well construction and abandonment reports.
5) A MONITORING HOLE CANNOT BE CONVERTED TO A PRODUCTION WATER WELL, except for purposes of remediation (recovery) or as a permanent dewatering system, if constructed in accordance with the Water Well Construction Rules and policies of the State Engineer.
6) IF HOLES WILL NOT BE CONSTRUCTED UNDER THIS NOTICE WITHIN 90 DAYS, PLEASE WRITE “NO HOLES CONSTRUCTED” ON A COPY
OF THE ACKNOWLEDGED NOTICE WITH THE FILE NUMBER AND EMAIL TO THE DIVISION OF WATER RESOURCES AT
Incomplete forms or Notice provided less than 72 hours prior to well construction will not be acknowledged
RCVD DWR08/23/2021
624071 2 08/24/2021
Form No. GWS-31
/201
7. Ground Surface Elevation: feet
9. Advance Notification: Was Notification Required Prior to Construction? Yes No, Date Notification Given: ______________10. Aquifer Type: Type I (One Confining Layer) Type I (Multiple Confining Layers) Laramie-Fox Hills
(Check one) Type II (Not overlain by Type III) Type II (Overlain by Type III) Type III (alluvial/colluvial)
Depth Grain Size Water Loc.
13. Plain CasingOD (in) Kind From (ft) To (ft)
Perforated CasingOD (in) Kind From (ft) To (ft)
14. Filter Pack: 15. Packer Placement: Material Type Size Interval __________ Depth _________16. Grouting Record
Material Amount Density IntervalRemarks:
18. Well Yield Estimate Data: Well Yield Estimate Method: _______________________________________________
19. I have read the statements made herein and know the contents thereof, and they are true to my knowledge. This document is signed (or name entered iffiling online) and certified in accordance with Rule 17.4 of the Water Well Construction Rules, 2 CCR 402 2. The filing of a document that contains false statements is a violation of section 37 91 108(1)(e), C.R.S., and is punishable by fines up to $1,000 and/or revocation of the contracting license. If filing online the State Engineer considers the entry of the licensed contractor’s name to be compliance with Rule 17.4.
Date/Time measured: ________________________
Sign (or enter name if filing online) Print Name and Title Date:
3. Well Owner Name:
For Office Use Only
8. Completed Aquifer Name : Total Depth: feet Depth Completed: feet
Wall Size (in)
Wall Size (in)
Mailing Address:
Phone w/area code: License Number:
17. Disinfection: Type Amt. Used
Company Name: Email:
Check box if Test Data is submitted on Form Number GWS-39, Well Yield Test Report
Screen Slot Size (in): _______
MH-62203TMW-A
City of Thornton- EcoDev8800 Washington Street, Thornton, CO 80229
Jack Denman Jack Denman, Geologist/Principal 11/15/2021
Form No. GWS-31
/201
7. Ground Surface Elevation: feet
9. Advance Notification: Was Notification Required Prior to Construction? Yes No, Date Notification Given: ______________10. Aquifer Type: Type I (One Confining Layer) Type I (Multiple Confining Layers) Laramie-Fox Hills
(Check one) Type II (Not overlain by Type III) Type II (Overlain by Type III) Type III (alluvial/colluvial)
Depth Grain Size Water Loc.
13. Plain CasingOD (in) Kind From (ft) To (ft)
Perforated CasingOD (in) Kind From (ft) To (ft)
14. Filter Pack: 15. Packer Placement: Material Type Size Interval __________ Depth _________16. Grouting Record
Material Amount Density IntervalRemarks:
18. Well Yield Estimate Data: Well Yield Estimate Method: _______________________________________________
19. I have read the statements made herein and know the contents thereof, and they are true to my knowledge. This document is signed (or name entered iffiling online) and certified in accordance with Rule 17.4 of the Water Well Construction Rules, 2 CCR 402 2. The filing of a document that contains false statements is a violation of section 37 91 108(1)(e), C.R.S., and is punishable by fines up to $1,000 and/or revocation of the contracting license. If filing online the State Engineer considers the entry of the licensed contractor’s name to be compliance with Rule 17.4.
Date/Time measured: ________________________
Sign (or enter name if filing online) Print Name and Title Date:
3. Well Owner Name:
For Office Use Only
8. Completed Aquifer Name : Total Depth: feet Depth Completed: feet
Wall Size (in)
Wall Size (in)
Mailing Address:
Phone w/area code: License Number:
17. Disinfection: Type Amt. Used
Company Name: Email:
Check box if Test Data is submitted on Form Number GWS-39, Well Yield Test Report
Screen Slot Size (in): _______
MH-62203TMW-B
City of Thornton- EcoDev8800 Washington Street, Thornton, CO 80229
9. Advance Notification: Was Notification Required Prior to Construction? Yes No, Date Notification Given: ______________10. Aquifer Type: Type I (One Confining Layer) Type I (Multiple Confining Layers) Laramie-Fox Hills
(Check one) Type II (Not overlain by Type III) Type II (Overlain by Type III) Type III (alluvial/colluvial)
Depth Grain Size Water Loc.
13. Plain CasingOD (in) Kind From (ft) To (ft)
Perforated CasingOD (in) Kind From (ft) To (ft)
14. Filter Pack: 15. Packer Placement: Material Type Size Interval __________ Depth _________16. Grouting Record
Material Amount Density IntervalRemarks:
18. Well Yield Estimate Data: Well Yield Estimate Method: _______________________________________________
19. I have read the statements made herein and know the contents thereof, and they are true to my knowledge. This document is signed (or name entered iffiling online) and certified in accordance with Rule 17.4 of the Water Well Construction Rules, 2 CCR 402 2. The filing of a document that contains false statements is a violation of section 37 91 108(1)(e), C.R.S., and is punishable by fines up to $1,000 and/or revocation of the contracting license. If filing online the State Engineer considers the entry of the licensed contractor’s name to be compliance with Rule 17.4.
Date/Time measured: ________________________
Sign (or enter name if filing online) Print Name and Title Date:
3. Well Owner Name:
For Office Use Only
8. Completed Aquifer Name : Total Depth: feet Depth Completed: feet
Wall Size (in)
Wall Size (in)
Mailing Address:
Phone w/area code: License Number:
17. Disinfection: Type Amt. Used
Company Name: Email:
Check box if Test Data is submitted on Form Number GWS-39, Well Yield Test Report
Screen Slot Size (in): _______
MH-62203TMW-C
City of Thornton- EcoDev8800 Washington Street, Thornton, CO 80229
Jack Denman Jack Denman, Geologist/Prinicpal 11/15/2021
Form No. GWS-31
/201
7. Ground Surface Elevation: feet
9. Advance Notification: Was Notification Required Prior to Construction? Yes No, Date Notification Given: ______________10. Aquifer Type: Type I (One Confining Layer) Type I (Multiple Confining Layers) Laramie-Fox Hills
(Check one) Type II (Not overlain by Type III) Type II (Overlain by Type III) Type III (alluvial/colluvial)
Depth Grain Size Water Loc.
13. Plain CasingOD (in) Kind From (ft) To (ft)
Perforated CasingOD (in) Kind From (ft) To (ft)
14. Filter Pack: 15. Packer Placement: Material Type Size Interval __________ Depth _________16. Grouting Record
Material Amount Density IntervalRemarks:
18. Well Yield Estimate Data: Well Yield Estimate Method: _______________________________________________
19. I have read the statements made herein and know the contents thereof, and they are true to my knowledge. This document is signed (or name entered iffiling online) and certified in accordance with Rule 17.4 of the Water Well Construction Rules, 2 CCR 402 2. The filing of a document that contains false statements is a violation of section 37 91 108(1)(e), C.R.S., and is punishable by fines up to $1,000 and/or revocation of the contracting license. If filing online the State Engineer considers the entry of the licensed contractor’s name to be compliance with Rule 17.4.
Date/Time measured: ________________________
Sign (or enter name if filing online) Print Name and Title Date:
3. Well Owner Name:
For Office Use Only
8. Completed Aquifer Name : Total Depth: feet Depth Completed: feet
Wall Size (in)
Wall Size (in)
Mailing Address:
Phone w/area code: License Number:
17. Disinfection: Type Amt. Used
Company Name: Email:
Check box if Test Data is submitted on Form Number GWS-39, Well Yield Test Report
Screen Slot Size (in): _______
MH-62203TMW-D
City of Thornton- EcoDev8800 Washington Street, Thornton, CO 80229
Jack Denman Jack Denman, Geologist/Principal 11/15/2021
Form No. GWS-31
/201
7. Ground Surface Elevation: feet
9. Advance Notification: Was Notification Required Prior to Construction? Yes No, Date Notification Given: ______________10. Aquifer Type: Type I (One Confining Layer) Type I (Multiple Confining Layers) Laramie-Fox Hills
(Check one) Type II (Not overlain by Type III) Type II (Overlain by Type III) Type III (alluvial/colluvial)
Depth Grain Size Water Loc.
13. Plain CasingOD (in) Kind From (ft) To (ft)
Perforated CasingOD (in) Kind From (ft) To (ft)
14. Filter Pack: 15. Packer Placement: Material Type Size Interval __________ Depth _________16. Grouting Record
Material Amount Density IntervalRemarks:
18. Well Yield Estimate Data: Well Yield Estimate Method: _______________________________________________
19. I have read the statements made herein and know the contents thereof, and they are true to my knowledge. This document is signed (or name entered iffiling online) and certified in accordance with Rule 17.4 of the Water Well Construction Rules, 2 CCR 402 2. The filing of a document that contains false statements is a violation of section 37 91 108(1)(e), C.R.S., and is punishable by fines up to $1,000 and/or revocation of the contracting license. If filing online the State Engineer considers the entry of the licensed contractor’s name to be compliance with Rule 17.4.
Date/Time measured: ________________________
Sign (or enter name if filing online) Print Name and Title Date:
3. Well Owner Name:
For Office Use Only
8. Completed Aquifer Name : Total Depth: feet Depth Completed: feet
Wall Size (in)
Wall Size (in)
Mailing Address:
Phone w/area code: License Number:
17. Disinfection: Type Amt. Used
Company Name: Email:
Check box if Test Data is submitted on Form Number GWS-39, Well Yield Test Report
Screen Slot Size (in): _______
MH-62407TMW-E
City of Thornton- EcoDev8800 Washington Street, Thornton, CO 80229
Jack Denman Jack Denman, Geologist/Principal 11/15/2021
Form No. GWS-31
/201
7. Ground Surface Elevation: feet
9. Advance Notification: Was Notification Required Prior to Construction? Yes No, Date Notification Given: ______________10. Aquifer Type: Type I (One Confining Layer) Type I (Multiple Confining Layers) Laramie-Fox Hills
(Check one) Type II (Not overlain by Type III) Type II (Overlain by Type III) Type III (alluvial/colluvial)
Depth Grain Size Water Loc.
13. Plain CasingOD (in) Kind From (ft) To (ft)
Perforated CasingOD (in) Kind From (ft) To (ft)
14. Filter Pack: 15. Packer Placement: Material Type Size Interval __________ Depth _________16. Grouting Record
Material Amount Density IntervalRemarks:
18. Well Yield Estimate Data: Well Yield Estimate Method: _______________________________________________
19. I have read the statements made herein and know the contents thereof, and they are true to my knowledge. This document is signed (or name entered iffiling online) and certified in accordance with Rule 17.4 of the Water Well Construction Rules, 2 CCR 402 2. The filing of a document that contains false statements is a violation of section 37 91 108(1)(e), C.R.S., and is punishable by fines up to $1,000 and/or revocation of the contracting license. If filing online the State Engineer considers the entry of the licensed contractor’s name to be compliance with Rule 17.4.
Date/Time measured: ________________________
Sign (or enter name if filing online) Print Name and Title Date:
3. Well Owner Name:
For Office Use Only
8. Completed Aquifer Name : Total Depth: feet Depth Completed: feet
Wall Size (in)
Wall Size (in)
Mailing Address:
Phone w/area code: License Number:
17. Disinfection: Type Amt. Used
Company Name: Email:
Check box if Test Data is submitted on Form Number GWS-39, Well Yield Test Report
Screen Slot Size (in): _______
MH-62407TMW-F
City of Thornton- EcoDev8800 Washington Street, Thornton, CO 80229
Jack Denman Jack Denman, Geologist/Principal 11/15/2021
Form No. GWS-31
/201
7. Ground Surface Elevation: feet
9. Advance Notification: Was Notification Required Prior to Construction? Yes No, Date Notification Given: ______________10. Aquifer Type: Type I (One Confining Layer) Type I (Multiple Confining Layers) Laramie-Fox Hills
(Check one) Type II (Not overlain by Type III) Type II (Overlain by Type III) Type III (alluvial/colluvial)
Depth Grain Size Water Loc.
13. Plain CasingOD (in) Kind From (ft) To (ft)
Perforated CasingOD (in) Kind From (ft) To (ft)
14. Filter Pack: 15. Packer Placement: Material Type Size Interval __________ Depth _________16. Grouting Record
Material Amount Density IntervalRemarks:
18. Well Yield Estimate Data: Well Yield Estimate Method: _______________________________________________
19. I have read the statements made herein and know the contents thereof, and they are true to my knowledge. This document is signed (or name entered iffiling online) and certified in accordance with Rule 17.4 of the Water Well Construction Rules, 2 CCR 402 2. The filing of a document that contains false statements is a violation of section 37 91 108(1)(e), C.R.S., and is punishable by fines up to $1,000 and/or revocation of the contracting license. If filing online the State Engineer considers the entry of the licensed contractor’s name to be compliance with Rule 17.4.
Date/Time measured: ________________________
Sign (or enter name if filing online) Print Name and Title Date:
3. Well Owner Name:
For Office Use Only
8. Completed Aquifer Name : Total Depth: feet Depth Completed: feet
Wall Size (in)
Wall Size (in)
Mailing Address:
Phone w/area code: License Number:
17. Disinfection: Type Amt. Used
Company Name: Email:
Check box if Test Data is submitted on Form Number GWS-39, Well Yield Test Report
Screen Slot Size (in): _______
MH-62407TMW-G
City of Thornton- EcoDev8800 Washington Street, Thornton, CO 80229
■
SW SW502077.5 4411968.6
Adams23 2 ■ 68 6■
5300.7 08/26/2021 Hollow Stem AugerAlluvial 25 25
■ 08/23/2021
0-0.33 Asphalt Gravel Black0.33-2 Clay Clay Olive Brown