Field Turf_Mayfield_m022326m
One
Beacon Street
, 17
th
Floor, Boston, MA
02108
|
617
-
395
-
5000
|
www.gradientcorp.com
Memorandum
To: Sara Marinelli, Josh Robinson (FieldTurf) Date: February 23, 2026 From: Catalina Restrepo, Michael Peterson, and Kim Reid (Gradient)
Subject: Mayfield Soccer Complex Total Organic Fluorine (TOF) Results
Executive Summary
This memorandum summarizes the validated laboratory testing results of FieldTurf's product intended for installation at the Mayfield Soccer Complex in Palo Alto, California. This testing was conducted to verify FieldTurf's claim that their synthetic turf product "FTVTP2-RE3-39-PFF-FS-STND, does not contain any intentionally added per - and poly -fluoroalkyl substances (PFAS) in its formulation or manufacturing process" (see Appendix A). To determine if the product contain s intentionally added per- and polyfluoroalkyl substances (PFAS), laboratory testing was conducted at Pace Labs in Minnesota and Massachusetts. All laboratories involved in this testing are accredited by the National Environmental Laboratory Accreditation Program (NELAP).
Laboratory testing for PFAS compounds in synthetic turf products is difficult due to the complex matrix of the products as well as the wide variety of PFAS compounds that could potentially be present in construction materials. In addition, there are not validated commercially available methods to test for the types of fluoropolymers that historically may have been used in some synthetic turf fibers. Due to these issues, testing for total organic fluorine (TOF) was recommended for this project, as California legislation has suggested that the presence of organic fluorine is an indicator of possible intentionally added PFAS compounds in products. TOF testing has significant limitations in that it can overestimate the presence of PFAS compounds, but it was still deemed the best available method for the purposes of this project.
The TOF results for the two Mayfield Soccer Complex FieldTurf product samples were 8.7 and 11 parts per million (ppm), which are both below regulatory guidelines that have been promulgated for consumer products1 in California and other states (TOF content limit of 100 or 50 ppm ; see, e.g., California bill AB 347 [California, State Assembly, 2024]).
Sample Collection and Analysis
Samples of the FieldTurf product intended for installation at the Mayfield Soccer Complex were collected on 12/18/2025 by FieldTurf staff in accordance with the Sampling and Analysis Plan (SAP), which was developed by Gradient in collaboration with FieldTurf and Pace Labs. See Table 1 for a summary of the sample information. Although there are no validated analytical me thods specifically designed to test synthetic field turf materials, Gradient designed the SAP to include testing of the material in solid form.
1 These regulatory limits are not specifically relevant to synthetic turf, but provide useful guidelines for comparison. In ge neral, the limits are intended to determine whether or not a product might contain intentionally added PFAS compounds.
2 Field Turf_Mayfield_m022326m
Determining TOF is a way of determining total PFAS levels in a sample; however, there currently are no validated methods available for testing for TOF in solid media or artificial field turf. Therefore, the samples first underwent cryomilling, followed by total fluorine analysis by combustion ion chromatography (CIC) and inorganic fluoride analysis by Method 121,4500F -BC. Then, we derived the TOF concentration in each sample by subtracting the inorganic fluoride results from the total fluorine results.
Table 1 FieldTurf Sample Information
Sample ID Product Name Product Description Date Collected Laboratory Report # Mayfield-1 Carpet retain Synthetic turf 12/18/2025 10760348 Mayfield-2
(duplicate)
Analytical Result Summary
Pace Labs reported the analysis results in laboratory report number 10760348 (see Appendix B). Duplicate samples were submitted to the laboratory for analysis according to the laboratory's corresponding standard operating procedure for each method.
Both samples Mayfield -1 and Mayfield -2 had detect ed levels of total fluorine (8.7 and 11 mg/kg, respectively) and non -detected levels of inorganic fluoride. Therefore, the calculated TOF is 8.7 and 11 mg/kg for samples Mayfield-1 and Mayfield-2, respectively. Table 2, below, summarizes the results of the analyses.
Data Validation
All the reported analytical data were validated according to the requirements listed in US EPA "Guidance on Environmental Data Verification and Data Validation " (US EPA, 2002) and the professional judgment of the reviewers. The laboratory provided a Level 2 analysis report; thus, raw data were not reviewed during the validation process. Table 2, below, presents a summary of the validated results for the Mayfield Soccer Complex FieldTurf sample analyses. In general, there was good agreement betwe en the primary and duplicate sample analyses performed across both methods, demonstrating that acceptable precision was achieved. Overall, no technical issues affecting the completeness, sensitivity, accuracy, or precision of the sample data were identifi ed during data validation. Appendix C contains the associated data validation report.
3 Field Turf_Mayfield_m022326m
Table 2 Summary of Validated Detected Results for Organic Fluorine Analyses of the Mayfield Soccer Complex FieldTurf Samples
Sample ID
TFa
(mg/kg)
IFb
(mg/kg) TOFc
(mg/kg) Result DV Qualifier RL Result DV Qualifierd RL
Mayfield-1 8.7 – 4 N/A – Result ND U 10 8.7
Mayfield-2 11 – 4 N/A – Result ND U 10 11
Notes:
CIC = Combustion Ion Chromatography; DV = Data Validation; IF = Inorganic Fluoride; N/A = Not Applicable; ND = Not Detected; RL = Reporting Limit; TF = Total Fluorine; TOF = Total Organic Fluorine.
DV Qualifier:
U = Not-detected.
(a) Solid media analysis. Extraction method: cryomilling. Analysis method: TF by CIC. (b) Solid media analysis. Extraction method: cryomilling. Analysis method: Method 121,4500F-BC. (c) Calculated as TF Concentration – IF Concentration. (d) Appendix C contains a full list of the DV qualifiers, including for detected and non-detected values.
Conclusion
PFAS are widespread in the environment and in commercial products. Historically, PFAS have been used as a processing aid during the production of synthetic turf products, which has led to concerns regarding potential exposures. In addition, s ome states have banned the sale of synthetic turf that contains PFAS.
This study provides investigation of the potential occurrence of intentionally added PFAS in product materials.
Because there is currently no analytical method for measuring TOF in solid media, we derived the TOF content of the samples by subtracting the concentration of inorganic fluoride from the concentration of total fluorine. The Mayfield -1 sample and its dupl icate sample (Mayfield-2) had detectable levels of total fluorine (8.7 and 11 mg/kg, respectively), and inorganic fluoride levels were non-detected in both samples.
Therefore, the calculated TOF concentrations are 8.7 and 11 mg/kg (equivalent to 8.7 and 1 1 ppm) for samples Mayfield-1 and Mayfield-2, respectively. These results are below all current regulatory standards for TOF. For example, California Proposition 65 settlements for PFAS generally specify that TOF content in textiles and other products should not exceed 100 ppm (0.01%) (see, e.g., BVCPS [2025]). California bill AB 347 limits TOF in textiles and juvenile products to less than 100 ppm (California, State Assembly, 2024). Vermont restricts TOF to less than 100 ppm in textiles, and will lower this value to 50 ppm in 2027 (Vermont, General Assembly, 2024).
Overall, these results are not indicative of the presence of intentionally added PFAS compounds in the tested FieldTurf product and support FieldTurf's claims (Appendix A).
4 Field Turf_Mayfield_m022326m
References
Bureau Veritas Consumer Products Services, Inc. (BVCPS). 2025. "California Proposition 65 Settlements." 25B-028. 1p., March.
California, State Assembly. 2024. "Assembly Bill No. 347: An act to amend Section 108945 of, to add Chapter 3 (commencing with Section 108075) to Part 3 of Division 104 of, to repeal the heading of Chapter 3 of Part 3 of Division 104 of, and to repeal Arti cle 7 (commencing with Section 108087) of Chapter 3 of Part 3 of Division 104 of, the Health and Safety Code, relating to consumer protection." AB 347. 6p., September 29.
US EPA. 2002. "Guidance on Environmental Data Verification and Data Validation (Final)." Office of Environmental Information. EPA/240/R-02/004, EPA QA/G-8, 95p., November.
Vermont, General Assembly. 2024. "An act relating to regulating consumer products containing perfluoroalkyl and polyfluoroalkyl substances or other chemicals." No. 131. 29p., May 30.
Field Turf_Mayfield_m022326m
Appendix A
FieldTurf Confirmation Letter
FieldTurf
Tel (800) 724-2969
www.fieldturf.com
December 2, 2025
Ben Heistein
Assistant Director - Open Space, Parks, and Golf
Community Services Department
City of Palo Alto
Mayfield Soccer Complex
Subject: Confirmation of No Intentionally added PFAS
Mr. Heistein,
We are writing to confirm that our turf product, FTVTP2-RE3-39-PFF-FS-STND, does not contain any intentionally added per- and poly-fluoroalkyl substances (PFAS) in its formulation or manufacturing process.
At FieldTurf, we are committed to transparency, environmental stewardship, and the safety of the communities we serve. We remain vigilant in our materials selection and testing protocols to ensure our products meet the highest standards for health and environmental responsibility.
If you have any questions or would like to review the supporting documentation, please do not hesitate to contact us.
Sincerely,
Darren Gill
Executive Vice-President
[email protected]
(514) 375-2584
Field Turf_Mayfield_m022326m
Appendix B
Laboratory Report
1(612)607-6351
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
Enclosed are the analytical results for sample(s) received by the laboratory on December 22, 2025. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report.
Dear Catalina Restrepo:
RE:
Project:
223101 Field Turf (9) Mayfield
Pace Project No.:
10760348
Catalina Restrepo
Gradient Corporation
1 Beacon Street, 17th Floor
Boston, MA 02108
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Enclosures
Michael Peterson, Gradiant Corporation
Kim Reid, Gradient Corporation
cc:
January 14, 2026
Carolynne Trout
[email protected]
Project Manager
1700 Elm Street
Pace Analytical Services, LLC
Minneapolis, MN 55414
(612)607-1700
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. 1 of 6
10760348
Table of Contents
-2-
Section 1: Sample Summary ............................................................................................................. 3 Section 2: Chain of Custody .............................................................................................................. 4
2.1: Chain of Custody .................................................................................................................... 4 Sections:
12 2 of 6
10760348
Lab ID
Sample ID
Matrix
Date Collected
Date Received
10760348001
Mayfield-1
Solid
12/18/25 02:02
12/22/25 10:15
10760348002
Mayfield-1
Solid
12/18/25 02:10
12/22/25 10:15
10760348003
Mayfield-2
Solid
12/18/25 02:18
12/22/25 10:15
10760348004
Mayfield-2
Solid
12/18/25 02:25
12/22/25 10:15
SAMPLE SUMMARY
1700 Elm Street
Pace Analytical Services, LLC
Minneapolis, MN 55414
(612)607-1700
Project:
223101 Field Turf (9) Mayfield
Pace Project No.:
10760348
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Date: 01/14/2026 04:30 PM
1 3 of 6
10760348
22.1 4 of 6
10760348
12/23/25
2 2.1
5 of 6
10760348
2 2.1
6 of 6
10760348
39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Pace Analytical Services, LLC - East Longmeadow, Ma
January 9, 2026
Carolynne Trout
Pace Analytical Laboratory - MN
1700 Elm Street
Minneapolis, MN 55414
Project Location: 223101 Field Turf (task9)
Client Job Number:
Project Number: 10760348
Laboratory Work Order Number: 26A0197
Enclosed are results of analyses for samples as received by the laboratory on January 8, 2026. If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Rebecca Faust
Project Manager
Table of Contents
Sample Summary 3
Case Narrative 4
Sample Results 5
26A0197-01 5
26A0197-02 6
Sample Preparation Information 7
QC Data 8
Fluorine by Combustion Ion Chromatography (CIC) 8
B420497 8
Flag/Qualifier Summary 9
Certifications 10
Chain of Custody/Sample Receipt 11
39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Pace Analytical Services, LLC - East Longmeadow, Ma
ANALYTICAL SUMMARY
1/9/2026
Pace Analytical Laboratory - MN
1700 Elm Street
Minneapolis, MN 55414
ATTN: Carolynne Trout
10760348
26A0197
The results of analyses performed on the following samples submitted to Pace Analytical Services, LLC - East Longmeadow, Ma, are found in this report.
PROJECT LOCATION:
PURCHASE ORDER NUMBER:
PROJECT NUMBER:
REPORT DATE:
WORK ORDER NUMBER:
FIELD SAMPLE # LAB ID: MATRIX TESTSAMPLE DESCRIPTION SUB LAB 223101 Field Turf (task9)
10760348
Mayfield-1 26A0197-01 Product/Solid Total Fluorine by CIC Mayfield-2 26A0197-02 Product/Solid Total Fluorine by CIC [TOC_1]Sample Summary[TOC]
39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Pace Analytical Services, LLC - East Longmeadow, Ma
CASE NARRATIVE SUMMARY
All reported results are within defined laboratory quality control objectives unless listed below or otherwise qualified in this report. [TOC_1]Case Narrative[TOC]
The results of analyses reported only relate to samples submitted to Pace Analytical Services, LLC - East Longmeadow, Ma, for testing.
I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the best of my knowledge and belief, accurate and complete.
Lisa A. Worthington
Technical Representative
39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Pace Analytical Services, LLC - East Longmeadow, Ma
Date Received: 1/8/2026
Work Order: 26A0197Sample Description:Project Location: 223101 Field Turf (task9) Sample ID: 26A0197-01
Field Sample #: Mayfield-1
Sample Matrix: Product/Solid
Sampled: 12/18/2025 02:02
[TOC_2]26A0197-01[TOC]
AnalystAnalyzedDilution Flag/QualRLResultsAnalyte
Date/Time
Units
Date
PreparedMethod
Fluorine by Combustion Ion Chromatography (CIC)
8.7 4.0 1/8/26 20:20 MMHmg/Kg 1/8/26Total Fluorine by CIC1Total Fluorine (TF) [TOC_1]Sample Results[TOC]
39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Pace Analytical Services, LLC - East Longmeadow, Ma
Date Received: 1/8/2026
Work Order: 26A0197Sample Description:Project Location: 223101 Field Turf (task9) Sample ID: 26A0197-02
Field Sample #: Mayfield-2
Sample Matrix: Product/Solid
Sampled: 12/18/2025 02:18
[TOC_2]26A0197-02[TOC]
AnalystAnalyzedDilution Flag/QualRLResultsAnalyte
Date/Time
Units
Date
PreparedMethod
Fluorine by Combustion Ion Chromatography (CIC)
11 4.0 1/8/26 20:41 MMHmg/Kg 1/8/26Total Fluorine by CIC1Total Fluorine (TF) 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Pace Analytical Services, LLC - East Longmeadow, Ma
Sample Extraction Data
Prep Method:EPA 1621 (TF) Analytical Method:Total Fluorine by CIC Lab Number [Field ID] Batch DateInitial [mg] Final [Boat] B420497 01/08/2650.6 1.0026A0197-01 [Mayfield-1]
B420497 01/08/2650.5 1.0026A0197-02 [Mayfield-2]
[TOC_1]Sample Preparation Information[TOC]
39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Pace Analytical Services, LLC - East Longmeadow, Ma
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Fluorine by Combustion Ion Chromatography (CIC) - Quality Control
QUALITY CONTROL
[TOC_2]Fluorine by Combustion Ion Chromatography (CIC)[TOC] Batch B420497 - EPA 1621 (TF)
[TOC_3]B420497[TOC]
Blank (B420497-BLK1) Prepared & Analyzed: 01/08/26
Total Fluorine (TF) mg/Kg4.0ND
LCS (B420497-BS1) Prepared & Analyzed: 01/08/26
Total Fluorine (TF) mg/Kg3.9 36.84 70-13093.134.3
LCS (B420497-BS2) Prepared & Analyzed: 01/08/26
Total Fluorine (TF) mg/Kg3.9 36.55 70-13010337.7
LCS (B420497-BS3) Prepared & Analyzed: 01/08/26
Total Fluorine (TF) mg/Kg3.9 36.62 70-13010337.6
LCS Dup (B420497-BSD1) Prepared & Analyzed: 01/08/26
Total Fluorine (TF) mg/Kg3.9 36.13 70-130101 6.3536.5
[TOC_1]QC Data[TOC]
39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Pace Analytical Services, LLC - East Longmeadow, Ma
FLAG/QUALIFIER SUMMARY
* QC result is outside of established limits.
Wide recovery limits established for difficult compound. Wide RPD limits established for difficult compound.
# Data exceeded client recommended or regulatory level
Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the calculation which have not been rounded.
No results have been blank subtracted unless specified in the case narrative section.
RL Reporting Limit is at the level of quantitation (LOQ) DL Detection Limit is the lower limit of detection determined by the MDL study MCL Maximum Contaminant Level
ND Not Detected
[TOC_1]Flag/Qualifier Summary[TOC]
39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Pace Analytical Services, LLC - East Longmeadow, Ma
CertificationsAnalyte
CERTIFICATIONS
Certified Analyses included in this Report
No certified Analyses included in this Report
[TOC_1]Certifications[TOC]
Pace Analytical Services, LLC - East Longmeadow, Ma, operates under the following certifications and accreditations:
Code Description Number Expires
L2601022
Pace Analytical Minnesota
10760348
223101 FIELD TURF (TASK 9)
Client:
Project Name:
Project Number:
01/14/26
Eight Walkup Drive, Westborough, MA 01581-1019
Lab Number:
Report Date:
508-898-9220 (Fax) 508-898-9193 800-624-9220 - www.alphalab.com 1700 Elm Street
Minneapolis, MN 55414
Carolynne TroutATTN:
ANALYTICAL REPORT
(612) 607-6351Phone:
The original project report/data package is held by Pace Analytical Services. This report/data package is paginated and should be reproduced only in its entirety. Pace Analytical Services holds no responsibility for results and/or data that are not consistent with the original.
Certifications & Approvals: MA (M-MA086), NH NELAP (2064), CT (PH-0826), IL (200077), IN (C-MA-03), KY (KY98045), ME (MA00086), MD (348), NJ (MA935), NY (11148), NC (25700/666), OR (MA-1316), PA (68-03671), RI (LAO00065), TX (T104704476), VT (VT-0935), VA (460195), USDA (Permit #525-23-122-91930A1).
Serial_No:01142612:02
L2601022-01
L2601022-02
Lab
Sample ID
MAYFIELD-1
MAYFIELD-2
Client ID
MN
MN
Sample
Location
223101 FIELD TURF (TASK 9)
10760348
Project Name:
Project Number:
Lab Number:
Report Date:
L2601022
01/14/26
12/18/25 14:02
12/18/25 14:18
Collection
Date/TimeMatrix Receive Date
SOLID
SOLID
01/08/26
01/08/26
Serial_No:01142612:02
223101 FIELD TURF (TASK 9)
10760348
Project Name:
Project Number:
Lab Number:
Report Date:
L2601022
01/14/26
Case Narrative
The samples were received in accordance with the Chain of Custody and no significant deviations were encountered during the preparation or analysis unless otherwise noted. Sample Receipt, Container Information, and the Chain of Custody are located at the back of the report.
Results contained within this report relate only to the samples submitted under this Pace Lab Number and meet NELAP requirements for all NELAP accredited parameters unless otherwise noted in the following narrative. The data presented in this report is organized by parameter (i.e. VOC, SVOC, etc.). Sample specific Quality Control data (i.e. Surrogate Spike Recovery) is reported at the end of the target analyte list for each individual sample, followed by the Laboratory Batch Quality Control at the end of each parameter. Tentatively Identified Compounds (TICs), if requested, are reported for compounds identified to be present and are not part of the method/program Target Compound List, even if only a subset of the TCL are being reported. If a sample was re-analyzed or re-extracted due to a required quality control corrective action and if both sets of data are reported, the Laboratory ID of the re-analysis or re-extraction is designated with an "R" or "RE", respectively.
When multiple Batch Quality Control elements are reported (e.g. more than one LCS), the associated samples for each element are noted in the grey shaded header line of each data table. Any Laboratory Batch, Sample Specific % recovery or RPD value that is outside the listed Acceptance Criteria is bolded in the report. In reference to questions H (CAM) or 4 (RCP) when "NO" is checked, the performance criteria for CAM and RCP methods allow for some quality control failures to occur and still be within method compliance. In these instances, the specific failure is not narrated but noted in the associated QC Outlier Summary Report, located directly after the Case Narrative. QC information is also incorporated in the Data Usability Assessment table (Format 11) of our Data Merger tool, where it can be reviewed in conjunction with the sample result, associated regulatory criteria and any associated data usability implications.
Soil/sediments and solids are reported on a dry weight basis unless otherwise noted. Tissues are reported "as received" or on a wet weight basis, unless otherwise noted. Definitions of all data qualifiers and acronyms used in this report are provided in the Glossary located at the back of the report.
HOLD POLICY - For samples submitted on hold, Pace's policy is to hold samples (with the exception of Air canisters) free of charge for 21 calendar days from the date the project is completed. After 21 calendar days, we will dispose of all samples submitted including those put on hold unless you have contacted your Pace Project Manager and made arrangements for Pace to continue to hold the samples. Air canisters will be disposed after 3 business days from the date the project is completed.
Please contact Project Management at 800-624-9220 with any questions.
Serial_No:01142612:02
Case Narrative (continued)
223101 FIELD TURF (TASK 9)
10760348
Project Name:
Project Number:
Lab Number:
Report Date:
L2601022
01/14/26
Report Submission
The laboratory does not hold certification for the analysis of Fluoride in the state of California.
I, the undersigned, attest under the pains and penalties of perjury that, to the best of my knowledge and belief and based upon my personal inquiry of those responsible for providing the information contained in this analytical report, such information is accurate and complete. This certificate of analysis is not complete unless this page accompanies any and all pages of this report.
Authorized Signature:
Title: Technical Director/Representative Date: 01/14/26 Serial_No:01142612:02
INORGANICS
&
MISCELLANEOUS
Serial_No:01142612:02
FF
MAYFIELD-1Client ID:
12/18/25 14:02Date Collected:
01/08/26Date Received:
Parameter Result
Dilution
Factor
Matrix: Solid
MNSample Location:
L2601022-01Lab ID:
Qualifier Units RL
SAMPLE RESULTS
Project Name:
Project Number:
Lab Number:
Report Date:
223101 FIELD TURF (TASK 9)
10760348
L2601022
Field Prep:
Date
Analyzed
Analytical
Method Analyst
Not Specified
General Chemistry - Westborough Lab
Fluoride ND mg/kg 110 01/11/26 07:18 121,4500F-BC DTH
Date
Prepared
01/11/26 03:01
01/14/26
MDL
--
Sample Depth:
Percent Solids: Results reported on an 'AS RECEIVED' basis.
Serial_No:01142612:02
FF
MAYFIELD-2Client ID:
12/18/25 14:18Date Collected:
01/08/26Date Received:
Parameter Result
Dilution
Factor
Matrix: Solid
MNSample Location:
L2601022-02Lab ID:
Qualifier Units RL
SAMPLE RESULTS
Project Name:
Project Number:
Lab Number:
Report Date:
223101 FIELD TURF (TASK 9)
10760348
L2601022
Field Prep:
Date
Analyzed
Analytical
Method Analyst
Not Specified
General Chemistry - Westborough Lab
Fluoride ND mg/kg 110 01/11/26 07:18 121,4500F-BC DTH
Date
Prepared
01/11/26 03:01
01/14/26
MDL
--
Sample Depth:
Percent Solids: Results reported on an 'AS RECEIVED' basis.
Serial_No:01142612:02
FF
Parameter Result
Dilution
FactorQualifier Units RL
Method Blank Analysis
Batch Quality Control
Project Name:
Project Number:
Lab Number:
Report Date:
223101 FIELD TURF (TASK 9)
10760348
L2601022
Date
Analyzed
Analytical
Method Analyst
Date
Prepared
01/14/26
Fluoride ND mg/kg 110 01/11/26 07:18 121,4500F-BC DTH01/11/26 03:01 General Chemistry - Westborough Lab for sample(s): 01-02 Batch: WG2163790-1 MDL
--
Serial_No:01142612:02
Fluoride 95 - 80-120 -
Parameter
LCS
%Recovery
LCSD
%Recovery
%Recovery
Limits RPD RPD Limits
General Chemistry - Westborough Lab Associated sample(s): 01-02 Batch: WG2163790-2 Lab Control Sample Analysis
Batch Quality Control
Project Name:
Project Number:
Lab Number:
Report Date:
223101 FIELD TURF (TASK 9)
10760348
L2601022
01/14/26
Qual Qual Qual
Serial_No:01142612:02
Fluoride ND 40 40 - - 70-130 -
Parameter
Native
Sample
MS
Found
MS
%Recovery
MSD
Found
MSD
%Recovery
Recovery
Limits RPD
RPD
Limits
General Chemistry - Westborough Lab Associated sample(s): 01-02 QC Batch ID: WG2163790-4 QC Sample: L2601020-01 Client ID: MS Sample
99.7 MS
Added
Matrix Spike Analysis
Batch Quality Control
Project Name:
Project Number:
Lab Number:
Report Date:
223101 FIELD TURF (TASK 9)
10760348
L2601022
01/14/26
Qual
Q
Qual Qual
Serial_No:01142612:02
Fluoride ND ND mg/kg NC 20
Units RPDParameter Native Sample Duplicate Sample RPD Limits General Chemistry - Westborough Lab Associated sample(s): 01-02 QC Batch ID: WG2163790-3 QC Sample: L2601020-01 Client ID: DUP Sample 223101 FIELD TURF (TASK 9)
10760348
Project Name:
Project Number:
L2601022Lab Number:
Report Date:
Lab Duplicate Analysis
Batch Quality Control
01/14/26
Qual
Serial_No:01142612:02
*Values in parentheses indicate holding time in days
L2601022-01A
L2601022-02A
Plastic 120ml unpreserved
Plastic 120ml unpreserved
NA
NA
NA
NA
Y
Y
Absent
Absent
A Absent
Cooler Custody Seal
Cooler Information
223101 FIELD TURF (TASK 9)
10760348
F-4500(28),TS100()
F-4500(28),TS100()
Project Name:
Project Number:
L2601022Lab Number:
Report Date:
Sample Receipt and Container Information
Container ID Container Type Cooler
Temp
deg C Pres Seal
Container Information
Analysis(*)
01/14/26
Were project specific reporting limits specified? YES
Frozen
Date/Time
Final
pH
Initial
pH
Serial_No:01142612:02
Report Format: Data Usability Report
GLOSSARY
Project Name:
Project Number:
Lab Number:
Report Date:
L2601022223101 FIELD TURF (TASK 9)
10760348 01/14/26
Acronyms
DL
EDL
EMPC
EPA
LCS
LCSD
LFB
LOD
LOQ
MDL
MS
MSD
NA
NC
NDPA/DPA
NI
NP
NR
RL
RPD
SRM
STLP
TEF
TEQ
TIC
Detection Limit: This value represents the level to which target analyte concentrations are reported as estimated values, when those target analyte concentrations are quantified below the limit of quantitation (LOQ). The DL includes any adjustments from dilutions, concentrations or moisture content, where applicable. (DoD report formats only.) Estimated Detection Limit: This value represents the level to which target analyte concentrations are reported as estimated values, when those target analyte concentrations are quantified below the reporting limit (RL). The EDL includes any adjustments from dilutions, concentrations or moisture content, where applicable. The use of EDLs is specific to the analysis of PAHs using Solid-Phase Microextraction (SPME).
Estimated Maximum Possible Concentration: The concentration that results from the signal present at the retention time of an analyte when the ions meet all of the identification criteria except the ion abundance ratio criteria. An EMPC is a worst-case estimate of the concentration.
Environmental Protection Agency.
Laboratory Control Sample: A sample matrix, free from the analytes of interest, spiked with verified known amounts of analytes or a material containing known and verified amounts of analytes.
Laboratory Control Sample Duplicate: Refer to LCS.
Laboratory Fortified Blank: A sample matrix, free from the analytes of interest, spiked with verified known amounts of analytes or a material containing known and verified amounts of analytes.
Limit of Detection: This value represents the level to which a target analyte can reliably be detected for a specific analyte in a specific matrix by a specific method. The LOD includes any adjustments from dilutions, concentrations or moisture content, where applicable. (DoD report formats only.)
Limit of Quantitation: The value at which an instrument can accurately measure an analyte at a specific concentration. The LOQ includes any adjustments from dilutions, concentrations or moisture content, where applicable. (DoD report formats only.)
Limit of Quantitation: The value at which an instrument can accurately measure an analyte at a specific concentration. The LOQ includes any adjustments from dilutions, concentrations or moisture content, where applicable. (DoD report formats only.)
Method Detection Limit: This value represents the level to which target analyte concentrations are reported as estimated values, when those target analyte concentrations are quantified below the reporting limit (RL). The MDL includes any adjustments from dilutions, concentrations or moisture content, where applicable.
Matrix Spike Sample: A sample prepared by adding a known mass of target analyte to a specified amount of matrix sample for which an independent estimate of target analyte concentration is available. For Method 332.0, the spike recovery is calculated using the native concentration, including estimated values.
Matrix Spike Sample Duplicate: Refer to MS.
Not Applicable.
Not Calculated: Term is utilized when one or more of the results utilized in the calculation are non-detect at the parameter's reporting unit.
N-Nitrosodiphenylamine/Diphenylamine.
Not Ignitable.
Non-Plastic: Term is utilized for the analysis of Atterberg Limits in soil.
No Results: Term is utilized when 'No Target Compounds Requested' is reported for the analysis of Volatile or Semivolatile Organic TIC only requests.
Reporting Limit: The value at which an instrument can accurately measure an analyte at a specific concentration. The RL includes any adjustments from dilutions, concentrations or moisture content, where applicable.
Relative Percent Difference: The results from matrix and/or matrix spike duplicates are primarily designed to assess the precision of analytical results in a given matrix and are expressed as relative percent difference (RPD). Values which are less than five times the reporting limit for any individual parameter are evaluated by utilizing the absolute difference between the values; although the RPD value will be provided in the report.
Standard Reference Material: A reference sample of a known or certified value that is of the same or similar matrix as the associated field samples.
Semi-dynamic Tank Leaching Procedure per EPA Method 1315.
Toxic Equivalency Factors: The values assigned to each dioxin and furan to evaluate their toxicity relative to 2,3,7,8-TCDD.
Toxic Equivalent: The measure of a sample's toxicity derived by multiplying each dioxin and furan by its corresponding TEF and then summing the resulting values.
Tentatively Identified Compound: A compound that has been identified to be present and is not part of the target compound list (TCL) for the method and/or program. All TICs are qualitatively identified and reported as estimated concentrations. -
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Serial_No:01142612:02
Report Format: Data Usability Report
Project Name:
Project Number:
Lab Number:
Report Date:
L2601022223101 FIELD TURF (TASK 9)
10760348 01/14/26
Terms
Analytical Method: Both the document from which the method originates and the analytical reference method. (Example: EPA 8260B is shown as 1,8260B.) The codes for the reference method documents are provided in the References section of the Addendum.
Chlordane: The target compound Chlordane (CAS No. 57-74-9) is reported for GC ECD analyses. Per EPA,this compound "refers to a mixture of chlordane isomers, other chlorinated hydrocarbons and numerous other components." (Reference: USEPA Toxicological Review of Chlordane, In Support of Summary Information on the Integrated Risk Information System (IRIS), December 1997.) Difference: With respect to Total Oxidizable Precursor (TOP) Assay analysis, the difference is defined as the Post-Treatment value minus the Pre-Treatment value.
Final pH: As it pertains to Sample Receipt & Container Information section of the report, Final pH reflects pH of container determined after adjustment at the laboratory, if applicable. If no adjustment required, value reflects Initial pH.
Frozen Date/Time: With respect to Volatile Organics in soil, Frozen Date/Time reflects the date/time at which associated Reagent Water- preserved vials were initially frozen. Note: If frozen date/time is beyond 48 hours from sample collection, value will be reflected in 'bold'.
Gasoline Range Organics (GRO): Gasoline Range Organics (GRO) results include all chromatographic peaks eluting from Methyl tert butyl ether through Naphthalene, with the exception of GRO analysis in support of State of Ohio programs, which includes all chromatographic peaks eluting from Hexane through Dodecane.
Initial pH: As it pertains to Sample Receipt & Container Information section of the report, Initial pH reflects pH of container determined upon receipt, if applicable.
PAH Total: With respect to Alkylated PAH analyses, the 'PAHs, Total' result is defined as the summation of results for all or a subset of the following compounds: Naphthalene, C1-C4 Naphthalenes, 2-Methylnaphthalene, 1-Methylnaphthalene, Biphenyl, Acenaphthylene, Acenaphthene, Fluorene, C1-C3 Fluorenes, Phenanthrene, C1-C4 Phenanthrenes/Anthracenes, Anthracene, Fluoranthene, Pyrene, C1-C4 Fluoranthenes/Pyrenes, Benz(a)anthracene, Chrysene, C1-C4 Chrysenes, Benzo(b)fluoranthene, Benzo(j)+(k)fluoranthene, Benzo(e)pyrene, Benzo(a)pyrene, Perylene, Indeno(1,2,3-cd)pyrene, Dibenz(ah)+(ac)anthracene, Benzo(g,h,i)perylene. If a 'Total' result is requested, the results of its individual components will also be reported.
PFAS Total: With respect to PFAS analyses, the 'PFAS, Total (5)' result is defined as the summation of results for: PFHpA, PFHxS, PFOA, PFNA and PFOS. In addition, the 'PFAS, Total (6)' result is defined as the summation of results for: PFHpA, PFHxS, PFOA, PFNA, PFDA and PFOS. For MassDEP DW compliance analysis only, the 'PFAS, Total (6)' result is defined as the summation of results at or above the RL. Note: If a 'Total' result is requested, the results of its individual components will also be reported.
Total: With respect to Organic analyses, a 'Total' result is defined as the summation of results for individual isomers or Aroclors. If a 'Total' result is requested, the results of its individual components will also be reported. This is applicable to 'Total' results for methods 8260, 8081 and 8082.
Data Qualifiers
A
B
C
D
E
F
G
H
I
J
M
-
-
-
-
-
-
-
-
-
-
-
Spectra identified as "Aldol Condensates" are byproducts of the extraction/concentration procedures when acetone is introduced in the process.
The analyte was detected above the reporting limit in the associated method blank. Flag only applies to associated field samples that have detectable concentrations of the analyte at less than ten times (10x) the concentration found in the blank. For MCP-related projects, flag only applies to associated field samples that have detectable concentrations of the analyte at less than ten times (10x) the concentration found in the blank. For DOD-related projects, flag only applies to associated field samples that have detectable concentrations of the analyte at less than ten times (10x) the concentration found in the blank AND the analyte was detected above one-half the reporting limit (or above the reporting limit for common lab contaminants) in the associated method blank. For NJ-Air- related projects, flag only applies to associated field samples that have detectable concentrations of the analyte above the reporting limit. For NJ-related projects (excluding Air), flag only applies to associated field samples that have detectable concentrations of the analyte, which was detected above the reporting limit in the associated method blank or above five times the reporting limit for common lab contaminants (Phthalates, Acetone, Methylene Chloride, 2-Butanone).
Co-elution: The target analyte co-elutes with a known lab standard (i.e. surrogate, internal standards, etc.) for co-extracted analyses.
Concentration of analyte was quantified from diluted analysis. Flag only applies to field samples that have detectable concentrations of the analyte.
Concentration of analyte exceeds the range of the calibration curve and/or linear range of the instrument.
The ratio of quantifier ion response to qualifier ion response falls outside of the laboratory criteria. Results are considered to be an estimated maximum concentration.
The concentration may be biased high due to matrix interferences (i.e, co-elution) with non-target compound(s). The result should be considered estimated.
The analysis of pH was performed beyond the regulatory-required holding time of 15 minutes from the time of sample collection.
The lower value for the two columns has been reported due to obvious interference.
Estimated value. This represents an estimated concentration for Tentatively Identified Compounds (TICs).
Reporting Limit (RL) exceeds the MCP CAM Reporting Limit for this analyte. 1 The reference for this analyte should be considered modified since this analyte is absent from the target analyte list of the original method.
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Footnotes
Serial_No:01142612:02
Report Format: Data Usability Report
Project Name:
Project Number:
Lab Number:
Report Date:
L2601022223101 FIELD TURF (TASK 9)
10760348 01/14/26
Data Qualifiers
ND
NJ
P
Q
R
RE
S
V
Z
-
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-
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-
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Not detected at the reporting limit (RL) for the sample.
Presumptive evidence of compound. This represents an estimated concentration for Tentatively Identified Compounds (TICs), where the identification is based on a mass spectral library search.
The RPD between the results for the two columns exceeds the method-specified criteria.
The quality control sample exceeds the associated acceptance criteria. For DOD-related projects, LCS and/or Continuing Calibration Standard exceedences are also qualified on all associated sample results. Note: This flag is not applicable for matrix spike recoveries when the sample concentration is greater than 4x the spike added or for batch duplicate RPD when the sample concentrations are less than 5x the RL. (Metals only.)
Analytical results are from sample re-analysis.
Analytical results are from sample re-extraction.
Analytical results are from modified screening analysis.
The surrogate associated with this target analyte has a recovery outside the QC acceptance limits. (Applicable to MassDEP DW Compliance samples only.)
The batch matrix spike and/or duplicate associated with this target analyte has a recovery/RPD outside the QC acceptance limits. (Applicable to MassDEP DW Compliance samples only.)
Serial_No:01142612:02
Pace Analytical Services performs services with reasonable care and diligence normal to the analytical testing laboratory industry. In the event of an error, the sole and exclusive responsibility of Pace Analytical Services shall be to re-perform the work at it's own expense. In no event shall Pace Analytical Services be held liable for any incidental, consequential or special damages, including but not limited to, damages in any way connected with the use of, interpretation of, information or analysis provided by Pace Analytical Services.
We strongly urge our clients to comply with EPA protocol regarding sample volume, preservation, cooling, containers, sampling procedures, holding time and splitting of samples in the field.
LIMITATION OF LIABILITIES
121 Standard Methods for the Examination of Water and Wastewater. APHA-AWWA-WEF.
Standard Methods Online.
Project Name:
Project Number:
Lab Number:
Report Date:
L2601022223101 FIELD TURF (TASK 9)
10760348
REFERENCES
01/14/26
Serial_No:01142612:02
ENV-FORM-WES2-0065 v02 Certificate/Approval Program Summary Qualtrax ID: 335524Effective Date: 01/06/26 Page 1 of 2 Pace® Analytical Services, LLC (PAS)
Certification Information
The following analytes are not included in our Primary NELAP Scope of Accreditation:
PAS-WES2 Westborough Facility – 8 Walkup Dr. Westborough, MA 01581 EPA 624.1: m/p-xylene, o-xylene, Naphthalene
EPA 625.1: alpha-Terpineol
EPA 8260D: NPW: 1,2,4,5-Tetramethylbenzene; 4-Ethyltoluene; SCM: Iodomethane (methyl iodide), 1,2,4,5-Tetramethylbenzene; 4-Ethyltoluene.
EPA 8270E: NPW: Dimethylnaphthalene,1,4-Diphenylhydrazine, alpha-Terpineol, Azobenzene; SCM: Dimethylnaphthalene,1,4-Diphenylhydrazine.
SM4500: NPW: Amenable Cyanide; SCM: Total Phosphorus, TKN, NO2, NO3.
PAS-MANS Mansfield Facility – 320 Forbes Blvd. Mansfield, MA 02048 SM 2540D: TSS.
Biological Tissue Matrix: EPA 3050B
PAS-MAN1 Mansfield Facility – 120 Forbes Blvd. Mansfield, MA 02048 EPA TO-15: Halothane, 2,4,4-Trimethyl-2-pentene, 2,4,4-Trimethyl-1-pentene, Thiophene, 2-Methylthiophene, 3-Methylthiophene, 2-Ethylthiophene, 1,2,3-Trimethylbenzene, Indan, Indene, 1,2,4,5-Tetramethylbenzene, Benzothiophene, 1-Methylnaphthalene.
MADEP-APH.
PAS-ELON East Longmeadow Facility – 39 Spruce Street East Longmeadow, MA 01028 EPA 524.2: 1,3,5-Trichlorobenzene, m/p-Xylene, o-xylene.
EPA 625.1: 1,2-Dichlorobenzene, 1,3-Dichlorobenzene, 1,4-Dichlorobenzene, N-Nitrosodiphenylamine.
EPA 8081B NPW and SCM: Alachlor, Endrin Ketone, Hexachlorobenzene.
EPA 8260D NPW: Tetrahydrofuran, 1,3,5-Trichlorobenzene; SCM: TAME, TBEE, Diethyl ether, DIPE, Tetrahydrofuran. 1,3,5-Trichlorobenzene, Freon- 113.
EPA 8270E: NPW: Carbazole, 1-Methylnaphthalene, Pentachloronitrobenzene; SCM: Carbazole, 1-Methylnaphthalene.
EPA TO-13: Air: Benzo(e)pyrene, 1-Methylnaphthalene, 2-Methylnaphthalene, Perylene.
EPA TO-4A Pesticide Air: delta-BHC, Endosulfan I, Endosulfan II, Endosulfan Sulfate, Endrin, Endrin Aldehyde, Endrin Ketone, Hexachlorobenzene, Methoxychlor.
SM4500: NPW: Amenable Cyanide; SCM: Total Phosphorus, TKN, NH3, NECi: NO2, NO3, ASTMD516.
The following test method is not included in our New Jersey Secondary NELAP Scope of Accreditation:
PAS-MANS Mansfield Facility – 320 Forbes Blvd. Mansfield, MA 02048 Determination of Selected Perfluorinated Alkyl Substances by Solid Phase Extraction and Liquid Chromatography/Tandem Mass Spectrometry Isotope Dilution (via Alpha SOP 23528)
The following analytes are included in our Massachusetts DEP Scope of Accreditation:
PAS-WES2 Westborough Facility – 8 Walkup Dr. Westborough, MA 01581 Drinking Water
EPA 300.0: Chloride, Nitrate-N, Fluoride, Sulfate; EPA 353.2: Nitrate-N, Nitrite-N; SM4500NO3-F: Nitrate-N, Nitrite-N; SM4500F-C, SM4500CN-CE, EPA 180.1, SM2130B, SM4500Cl-D, SM2320B, SM2540C, SM4500H-B, SM4500NO2-B EPA 524.2: THMs and VOCs; EPA 504.1: EDB, DBCP.
Microbiology: SM9215B; SM9223-P/A, SM9223B-Colilert-QT,SM9222D.
Non-Potable Water
SM4500H,B, EPA 120.1, SM2510B, SM2540C, SM2320B, SM4500CL-E, SM4500F-BC, SM4500NH3-BH: Ammonia-N and Kjeldahl-N, EPA 350.1:
Ammonia-N, LACHAT 10-107-06-1-B: Ammonia-N, EPA 351.1, SM4500NO3-F, EPA 353.2: Nitrate-N, SM4500P-E, SM4500P-B, E, SM4500SO4-E, SM5220D, EPA 410.4, SM5210B, SM5310C, SM4500CL-G, EPA 1664, EPA 420.1, SM4500-CN-CE, SM2540D, EPA 300: Chloride, Sulfate, Nitrate.
EPA 624.1: Volatile Halocarbons & Aromatics,
EPA 608.3: Chlordane, Toxaphene, Aldrin, alpha-BHC, beta-BHC, gamma-BHC, delta-BHC, Dieldrin, DDD, DDE, DDT, Endosulfan I, Endosulfan II, Endosulfan sulfate, Endrin, Endrin Aldehyde, Heptachlor, Heptachlor Epoxide, PCBs EPA 625.1: SVOC (Acid/Base/Neutral Extractables).
Microbiology: SM9223B-Colilert-QT; Enterolert-QT.
Serial_No:01142612:02
ENV-FORM-WES2-0065 v02 Certificate/Approval Program Summary Qualtrax ID: 335524Effective Date: 01/06/26 Page 2 of 2 Pace® Analytical Services, LLC (PAS)
PAS-MANS Mansfield Facility – 320 Forbes Blvd. Mansfield, MA 02048 Drinking Water
EPA 200.7: Al, Ba, Cd, Cr, Cu, Fe, Mn, Ni, Na, Ag, Ca, Zn. EPA 200.8: Al, Sb, As, Ba, Be, Cd, Cr, Cu, Pb, Mn, Ni, Se, Ag, TL, Zn. EPA 245.1 Hg.
EPA 522, EPA 537.1.
Non-Potable Water
EPA 200.7: Al, Sb, As, Be, Cd, Ca, Cr, Co, Cu, Fe, Pb, Mg, Mn, Mo, Ni, K, Se, Ag, Na, Sr, TL, Ti, V, Zn.
EPA 200.8: Al, Sb, As, Be, Cd, Ca, Cr, Cu, Fe, Pb, Mg, Mn, Ni, K, Se, Ag, Na, TL, Zn.
EPA 245.1: Hg. EPA 245.7: Hg.
SM2340B
PAS-ELON East Longmeadow Facility – 39 Spruce Street East Longmeadow, MA 01028 Drinking Water
EPA 300.0: NO3, NO2, Fl, Cl, SO4. NECI Reductase: NO3, NO2.
SM4500F-C, SM4500Cl-B, ASTM D516, SM4500CN-C,E, EPA 180.1, SM2320B, SM 2540C, SM4500H-B, SM4500SO4-E.
EPA 537.1; EPA 524.2: THMs and VOCs; EPA 504.1: EDB, DBCP.
Microbiology: SM9223-P/A: TC/EC; SM9223B-Colilert-enumeration: TC/EC; HPC-Simplate.
Non-Potable Water
SM4500H-B, SM2510B, SM2540C, SM2320B, SM4500Cl-B, ASTMD516, SM4500NH3-B, C, EPA 350.1, NECi: NO3, SM4500NH3-B, C: TKN, SM4500P-E: Ortho Phosphate, SM4500P-B, E: Total Phosphorus, EPA 410.4, SM5210B, SM5310C, SM4500CN-C, E, SM2540D, SM4500Cl-G, SM4500SO4-E, EPA 1664, EPA 420.1, EPA 300.0: Cl, SO4, NO3.
EPA 624.1: Volatile Halocarbons, Volatile Aromatics.
EPA 608.3: Chlordane, Toxaphene, Aldrin, Alpha-BHC, Beta-BHC, Gamma-BHC, Delta-BHC, Dieldrin, DDD, DDE, DDT, Endosulfan I, Endosulfan II, Endosulfan Sulfate, Endrin, Endrin Aldehyde, Heptachlor, Heptachlor Epoxide, PCBs.
EPA 625.1: SVOC-Acid Extractables and Base/Neutrals
Microbiology: SM9223B-Colilert: E. coli (Ambient and Wastewater), SM9223B-Colilert-18: Fecal Coliform (Wastewater).
Certification IDs:
PAS-WES2 Westborough Facility – 8 Walkup Dr. Westborough, MA 01581 CT PH-0826, IL 200077, IN C-MA-03, KY kY98045, ME MA00086, MD 348, MA M-MA086, NH 2064, NJ MA935, NY 11148, NC (DW) 25700, NC (NPW/SCM) 666, OR MA-1316, PA 68-03671, RI LAO00065, TX T104704476, VT VT-0935, VA 460195.
PAS-MANS Mansfield Facility – 320 Forbes Blvd. Mansfield, MA 02048 ANAB/DoD L2474, CA 3117, CO MA00030, CT PH-0825, IL 200081, IN C-MA-04, KY KY98046, LA 85084, ME MA00030, MD 350, MA M-MA00030, MI 9110, MN 025-999-495, NH 2062, NJ MA015, NY 11627, NC (NPW/SCM) 685, OR MA-0262, PA 68-02089, RI LAO00299, TX T-104704419, UT MA00030, VT VT-0015, VA 460194, WA C954.
PAS-MAN1 Mansfield Air Lab Facility – 120 Forbes Blvd. Mansfield, MA 02048 ANAB/DoD L2474, LA 245052, ME MA01156, MN 025-999-498, NH 2249, NJ MA025, NY 12191, OR 4203, TX T104704583, VA 460311, WA C1104.
PAS-ELON East Longmeadow Facility – 39 Spruce St. East Longmeadow, MA 01028 CT PH-0821, ME MA00100, MI 9100, NC (DENR) 652, NC (DW) 25703, MA M-MA100, NH (Secondary) 2516, NH (Primary) 2557, NJ MA007, NY 10899, PA 68-05812, RI LAO00373, VA 460217, VT-255716, WV DEP 419, WV-DW 9979C, LA 05130, LA-DW LA042, MD-DW 373, OH 87781.
For a complete listing of analytes and methods, please contact your Project Manager.
Serial_No:01142612:02
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Sample Delivery Group Summary
Sample Delivery Group Summary
Pace Job Number : L2601022 Received : 08-JAN-2026 Reviewer : Harmony Evans
Account Name : Pace Analytical Minnesota
Project Number : 10760348
Project Name : 223101 FIELD TURF (TASK 9)
Delivery Information
Samples Delivered By: Express Ship
FedEx (424355846224)
Chain of Custody : Present
Cooler Information
Cooler Seal/Seal# Preservation Temperature(°C) Additional Information A Absent/ Ice 4.8
Condition Information
1) All samples on COC received? YES
2) Extra samples received? NO
3) Are there any sample container discrepancies? NO
4) Are there any discrepancies between COC & sample labels? NO 5) Are samples in appropriate containers for requested analysis? YES 6) Are samples properly preserved for requested analysis? YES 7) Are samples within holding time for requested analysis? YES 8) All sampling equipment returned? NA
Volatile Organics/VPH
1) Reagent Water Vials Frozen by Client? NA
Serial_No:01142612:02
Field Turf_Mayfield_a022326m
Appendix C
Data Validation Checklist:
Fluorine Analysis in Solid Samples
Laboratory Report No. 10760348
C-1
Field Turf_Mayfield_a022326m
Project Location: Mayfield Soccer Complex, Palo Alto, CA Sampling Date: 12/18/2025
Matrices: Solid
Methods: Total Fluorine (TF) by Combustion Ion Chromatography (CIC) Inorganic Fluoride (IF) by Method 121,4500F-BC
Laboratory: Pace Labs
Report or Job ID: 10760348
Data Validation Level: Level 2
Initial Date Validation
Reviewer/Completion Date:
William Dowd – 1/20/2025
Senior Data Validation
Reviewer/Completion Date:
Stephanie Kukolich – 1/23/2026
This Level 2 data validation checklist provides the findings of a data quality review of the laboratory deliverables for the site and samples referenced below. Raw data were not reviewed as part of this Level 2 review; rather, data reporting forms were reviewed to determine whether validation criteria were met.
The data validation review was conducted according to procedures defined in the Sampling and Analysis Plan (SAP) and with reference to the requirements listed in the United States Environmental Protection Agency (US EPA) "Guidance on Environmental Data Verification and Data Validation " (US EPA, 2002) and the professional judgment of the reviewers . General sampling and analysis information is provided below, and a summary of the samples validated are provided in Table C.1.
The following data qualifiers have been used to qualify the data, when appropriate.
J+ = Data result is estimated due to potential high bias.
J- = Data result is estimated due to potential low bias.
J = Data result is estimated and may be inaccurate or imprecise.
UJ = Data result is not detected above the level of the associated value. The result is estimated and may be inaccurate or imprecise.
X = Exclusion of data is recommended.
C-2
Field Turf_Mayfield_a022326m
Table C.1 Sample Summary – Laboratory Report No. 10760348 Client Sample ID Laboratory
Sample ID Matrix Sample Description
or Parent Sample
Date
Collected
Date
Received
Date
Prepared
Date
Analyzed Batch #
TF by CIC
Mayfield-1 26A0197-01 Solid – 12/18/2025 1/8/2026 1/8/2026 1/8/2026 B420497 Mayfield-2 26A0197-02 Solid FD of Mayfield-1 12/18/2025 1/8/2026 1/8/2026 1/8/2026 B420497 IF by Method 121,4500F-BC
Mayfield-1 L2601022-01 Solid – 12/18/2025 1/8/2026 1/11/2026 1/11/2026 WG2163790 Mayfield-2 L2601022-02 Solid FD of Mayfield-1 12/18/2025 1/8/2026 1/11/2026 1/11/2026 WG2163790 Notes:
CIC = Combustion Ion Chromatography; FD = Field Duplicate; IF = Inorganic Fluoride; TF = Total Fluorine.
C-3
Field Turf_Mayfield_a022326m
Executive Summary
Overall Summary of Data Usability
A. Summary of Technical Usability
No technical issues were noted during the data validation review.
B. Technical Issues Affecting Accuracy
No technical issues affecting accuracy were noted during the data validation review.
C. Technical Issues Affecting Sensitivity
No technical issues affecting sensitivity were noted during the data validation review.
D. Completeness
No technical issues affecting completeness were noted during the data validation review.
E. Other Technical Issues
No additional technical issues were identified during the data validation review.
C-4
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C.1 Total Fluorine by Combustion Ion Chromatography (CIC) C.1.1 Chain-of-Custody (COC) and Sample Documentation Completeness Review Questions Yes No N/A Sample and Analytes Affected/Comments Flag
1. Were safe storage and preservation requirements met? If temperature >6°C, then J-flag detects, and UJ-flag nondetects.
X
2. Were all COC records signed, indicating that COC was maintained for all samples?
X
3. Were there any problems noted in the laboratory data package concerning the condition of samples upon receipt?
X The laboratory noted that the sample containers
lacked dates or times. However, based on
communications with the samplers, no qualifiers are
necessary due to the sample container labels.
4. Were the COCs filled out correctly? X
5. Were field QC samples included? X
Notes:
COC = Chain of Custody; N/A = Not Applicable; QC = Quality Control.
C.1.2 Sample Result Review
Review Questions Yes No N/A Sample and Analytes Affected/Comments Flag
6. Was a narrative summary of QA or sample problems provided by the laboratory?
X
7. Are the units correct? X
Notes:
N/A = Not Applicable; QA = Quality Assurance.
C-5
Field Turf_Mayfield_a022326m
C.1.3 Blanks
Review Questions Yes No N/A Sample and Analytes Affected/Comments Flag
8. Was a method blank (MB) extracted with each analysis batch (i.e., 1 per 20 samples, per batch, per matrix)?
X
9. Were detections in the samples below the MB contamination level?
If yes, U-flag positive sample results reported at the RL, and J+-flag results >RL but <5X the MB concentration. No flags are assigned if the sample result is >RL and >5X the MB
concentration.
X
Notes:
N/A = Not Applicable; RL = Reporting Limit.
C.1.4 Field Duplicates
Review Questions Yes No N/A Sample and Analytes Affected/Comments Flag
10. Were field duplicates collected in association with the samples in this data report?
X
11. If so, was precision deemed acceptable (i.e., <50% RPD in aqueous matrices and 100% in soil matrices)?
Analytes with RPDs outside acceptable limits will be J-flagged (detects) or UJ-flagged (nondetects) when sample results are >5X the average RL. If the sample results are ≤5X the average RL, then precision is based on the absolute difference between duplicate results. J-flag sample results whenever the absolute difference is greater than the average RL.
X
Notes:
N/A = Not Applicable; RL = Reporting Limit; RPD = Relative Percent Different.
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C.1.5 Laboratory Control Samples (LCSs) and Laboratory Control Sample Duplicates (LCSDs) Review Questions Yes No N/A Sample and Analytes Affected/Comments Flag
12. Were laboratory control samples (LCSs) and laboratory control sample duplicates (LCSDs) analyzed at the proper frequency and were the recoveries summarized?
LCSs and LCSDs should be prepared per 20 samples, per batch, per matrix.
X
13. Were LCS and LCSDs recoveries within the acceptable criteria? If the LCS or LCSDs percentage recoveries were greater than the upper control limit, J+-flag detects for the analyte in the associated samples. Nondetects should not be qualified. If the LCS or LCSDs percentage recoveries were less than the lower control limit, flag detects for the analyte in the associated samples as estimated with a negative bias (J-) and flag nondetects as X.
X
Note:
N/A = Not Applicable.
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C.2 Inorganic Fluoride by Method 121,4500F-BC
C.2.1 Chain-of-Custody (COC) and Sample Documentation Completeness Review Questions Yes No N/A Sample and Analytes Affected/Comments Flag
14. Were safe storage and preservation requirements met? If temperature >6°C, then J-flag detects, and UJ-flag nondetects.
X
15. Were all COC records signed, indicating that COC was maintained for all samples?
X
16. Were there any problems noted in the laboratory data package concerning the condition of samples upon receipt?
X The laboratory noted that the sample containers
lacked dates or times. However, based on
communications with the samplers, no qualifiers are
necessary due to the sample container labels.
17. Were the COCs filled out correctly? X
18. Were field QC samples included? X
Notes:
COC = Chain of Custody; N/A = Not Applicable; QC = Quality Control.
C.2.2 Sample Result Review
Review Questions Yes No N/A Sample and Analytes Affected/Comments Flag
19. Was a narrative summary of QA or sample problems provided by the laboratory?
X
20. Are the units correct? X
Notes:
N/A = Not Applicable; QA = Quality Assurance.
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C.2.3 Blanks
Review Questions Yes No N/A Sample and Analytes Affected/Comments Flag
21. Was a method blank (MB) extracted with each analysis batch (i.e., 1 per 20 samples, per batch, per matrix)?
X
22. Were detections in the samples below the MB contamination level?
If yes, U-flag positive sample results reported at the RL, and J+-flag results >RL but <5X the MB concentration. No flags are assigned if the sample result is >RL and >5X the MB
concentration.
X
Notes:
N/A = Not Applicable; RL = Reporting Limit.
C.2.4 Field Duplicates
Review Questions Yes No N/A Sample and Analytes Affected/Comments Flag
23. Were field duplicates collected in association with the samples in this data report?
X
24. If so, was precision deemed acceptable (i.e., <50% RPD in aqueous matrices and 100% in soil matrices)?
Analytes with RPDs outside acceptable limits will be J-flagged (detects) or UJ-flagged (nondetects) when sample results are >5X the average RL. If the sample results are ≤5X the average RL, then precision is based on the absolute difference between duplicate results. J-flag sample results whenever the absolute difference is greater than the average RL.
X
Notes:
N/A = Not Applicable; RL = Reporting Limit; RPD = Relative Percent Different.
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C.2.5 Laboratory Control Samples (LCSs) and Laboratory Control Sample Duplicates (LCSDs) Review Questions Yes No N/A Sample and Analytes Affected/Comments Flag
25. Were laboratory control samples (LCSs) and laboratory control sample duplicates (LCSDs) analyzed at the proper frequency and were the recoveries summarized?
LCSs and LCSDs should be prepared per 20 samples, per batch, per matrix.
X Only one LCS was reported in the data package.
Because the LCS met the recovery criteria, and all
other data validation criteria were met, no actions
were taken.
26. Were LCS and LCSDs recoveries within the acceptable criteria? If the LCS or LCSDs percentage recoveries were greater than the upper control limit, J+-flag detects for the analyte in the associated samples. Nondetects should not be qualified. If the LCS or LCSDs percentage recoveries were less than the lower control limit, flag detects for the analyte in the associated samples as estimated with a negative bias (J-) and flag nondetects as X.
X
Note:
N/A = Not Applicable.
C.2.6 Matrix Spike/Matrix Spike Duplicate (MS/MSD) Analysis Review Questions Yes No N/A Sample and Analytes Affected/Comments Flag
27. Were matrix spikes (MSs)/matrix spike duplicates (MSDs) analyzed at the appropriate frequency and were the
recoveries summarized?
X It appears that the reported MS was not associated with the Mayfield Soccer Complex FieldTurf samples in this data package. The laboratory listed the QC sample ID
associated with the MS as "L2601020-01," whereas the
laboratory sample ID associated with the Mayfield Soccer Complex FieldTurf samples was listed as "L2601022." No actions were taken except to note this discrepancy.
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Review Questions Yes No N/A Sample and Analytes Affected/Comments Flag
28. Are the MS/MSD recoveries within the defined
acceptance criteria?
If the MS or MSD percentage recoveries were greater
than the upper control limit, flag detects for the analyte in the associated parent sample as estimated J+.
Nondetects should not be qualified.
If the MS or MSD percentage recoveries were less than
the lower acceptance limit but ≥10%, flag detects for the analyte in the associated parent sample as estimated J- and nondetects as estimated UJ. If the percentage
recoveries were <10%, flag detects for the analyte in the associated parent sample as estimated J- and nondetects as X.
X
29. Was the RPD for the MS/MSD summarized? X
30. Is the MS/MSD RPD within the defined acceptance
criteria?
If the RPD was above the accepted RPD criteria, flag
detects for the analyte in the associated sample(s) as J and nondetects as estimated UJ.
X
Notes:
N/A = Not Applicable; QC = Quality Control; RPD = Relative Percent Difference.
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References
US EPA. 2002. "Guidance on Environmental Data Verification and Data Validation (Final)." Office of Environmental Information. EPA/240/R-02/004, EPA QA/G-8, 95p., November.