Text

NRR E-mail Capture - (External_Sender) Energy Northwest Columbia Generating Station 2021 Priority Pollutant Discharge Monitoring Report
	ML22020A080
Person / Time
Site:	Columbia
Issue date:	01/12/2022
From:	Schmitt M; Energy Northwest
To:	; Office of Nuclear Reactor Regulation
References
	WA002515-1
	Download: ML22020A080 (160)
	v • d • e

From: Schmitt, Marshall A. <maschmitt@energy-northwest.com>

Sent: Wednesday, January 12, 2022 12:40 PM To: Ritchie Graves - NOAA Federal Cc: Arlene, Briana; EndangeredSpecies Resource; Barfuss, Brad C.; Ramos, Mary Joy.; Hildman, Cynthia M.; LePage, Jane T.

Subject:

[External_Sender] Energy Northwest Columbia Generating Station 2021 Priority Pollutant Discharge Monitoring Report Attachments: GO2-22-004.pdf Mr. Graves, Condition 2.9.4(4)(a) of the Endangered Species Act 7(a)(2) Biological Opinion requires Energy Northwest to send a copy of reports submitted pursuant to NPDES Permit WA002515-1 to National Marine Fisheries Service (NMFS) and copy to the Nuclear Regulatory Commission (NRC). Please find the attached Columbia Generating Station Annual 2021 Priority Pollutant Discharge Monitoring Report (DMR). This letter and enclosed report are being provided as an electronic transmittal and the DMR has been submitted electronically to the State of Washington Department of Ecology (Ecology) via Ecologys Online Reporting System.

If you have any questions about this report, please contact me at (509) 372-5334 or maschmitt@energy-northwest.com Sincerely, Marshall Schmitt l Environmental Scientist Energy Northwest Environmental and Regulatory Programs 509-372-5334 l maschmitt@energy-northwest.com

Hearing Identifier: NRR_DRMA Email Number: 1495 Mail Envelope Properties (SA0PR09MB6969C288B989B2B7A9AD6F6C90529)

Subject:

[External_Sender] Energy Northwest Columbia Generating Station 2021 Priority Pollutant Discharge Monitoring Report Sent Date: 1/12/2022 12:39:30 PM Received Date: 1/12/2022 12:41:29 PM From: Schmitt, Marshall A.

Created By: maschmitt@energy-northwest.com Recipients:

"Arlene, Briana" <briana.arlene@nrc.gov>

Tracking Status: None "EndangeredSpecies Resource" <EndangeredSpecies.Resource@nrc.gov>

Tracking Status: None "Barfuss, Brad C." <bcbarfuss@energy-northwest.com>

Tracking Status: None "Ramos, Mary Joy." <mjoyramos@energy-northwest.com>

Tracking Status: None "Hildman, Cynthia M." <cmhildman@energy-northwest.com>

Tracking Status: None "LePage, Jane T." <jtlepage@energy-northwest.com>

Tracking Status: None "Ritchie Graves - NOAA Federal" <ritchie.graves@noaa.gov>

Tracking Status: None Post Office: SA0PR09MB6969.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 961 1/12/2022 12:41:29 PM GO2-22-004.pdf 4118035 Options Priority: Normal Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

ENERGY NORTHWEST INTEROFFICE MEMO GO2-22-004 DIC: 1316.20 DATE: January 10, 2022 TO: Columbia Generating Station, (CGS)

FROM: Jane LePage, (CGS)

SUBJECT:

COLUMBIA GENERATING STATION NPDES 2021 ANNUAL PRIORITY POLLUTANT DISCHARGE MONITORING REPORT

REFERENCE:

NPDES Permit No. WA 002515-1 Condition S3.A On September 7, 2021, Columbia Generating Station collected a 24-hr composite sample and grab samples of the circulating water blowdown (CWBD) water for annual priority pollutant testing in accordance with special condition S2.A of Permit No.

WA002515-1. Please find attached the NPDES Discharge Monitoring Report (DMR) for 2021 annual priority pollutant analysis. The report will be submitted electronically to the State of Washington Department of Ecology (Ecology) via Ecologys Online Reporting System.

If you have any questions concerning this information, please contact MA Schmitt at (509) 372-5334.

Enclosures:

1-Discharge Monitoring Report (DMR) for annual sample 2-Reports of Analysis NPDES annual priority pollutant sample 3-Energy Northwest Environmental Services Lab Scope of Accreditation 4-Edge Analytical, Burlington WA Scope of Accreditation 5-Anatek Labs, Inc., Moscow ID Scope of Accreditation 6-Pace Analytical, MN Scope of Accreditation CC:

National Marine Fisheries Service (NMFS)

Richie.Graves@noaa.gov Columbia Hydropower Branch National Marine Fisheries Service 1201 NE Lloyd Blvd, Suite 1100 Portland, OR 97232 P.O. Box 968 / Richland, WA 99352-0968 / (509) 372-5000 / www.energy-northwest.com Columbia Generating Station Page 2 of 2 January 10, 2022 CGS NPDES 2021 ANNUAL PRIORITY POLLUTANT DMR Briana.Grange@nrc.gov, and EndangeredSpecies.Resource@nrc.gov U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001 JTL I certify under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

Prepared by: Jane T. LePage, Environmental Scientist, Environmental Services Reviewed by: Kristopher Byers, Environmental Scientist, Environmental Services Reviewed by: Marshall Schmitt, Environmental Scientist, E&RP Reviewed by: Matthew Turner, Manager, Environmental Services Approved by: Brad C. Barfuss, Manager, Environmental & Regulatory Programs DISTRIBUTION LIST:

INTERNAL DISTRIBUTION: FILE COPY BCB LB Docket File PE20 MA Schmitt PE03 Columbia Files 964Y JT LePage 1025

I Washington State Department of Ecology Discharge Monitoring Report (DMR) Page: 1 of 5 Permit Number: WA0025151 Permittee: Energy Northwest Columbia Generating Station Facility County: Benton Receiving Waterbody:

Monitoring Period: 01/01/2021 - 12/31/2021 Outfall: 001 Version: 1 Sample Date: 9/7/2021 Monitoring Parameter Fraction Units Sample Qualifier Required Required Actual Actual Point Code Detection Quantitation Detection Quantitation Level Level Level Level CWB Antimony Total Micrograms/L 1.2 0.3 1.0 0.4 1 (ug/L)

CWB Arsenic Total Micrograms/L 5.6 0.1 0.5 0.5 0.5 (ug/L)

CWB Beryllium Total Micrograms/L < 0.12 U 0.1 0.5 0.12 0.3 (ug/L)

CWB Cadmium Total Micrograms/L < 0.09 U 0.05 0.25 0.09 0.25 (ug/L)

CWB Chromium, Hexavalent Total Micrograms/L M* NAF 0.3 1.2 (ug/L)

CWB Chromium Total Micrograms/L 2.8 0.2 1 0.36 1 (ug/L)

CWB Copper Total Micrograms/L 14.5 0.4 2 0.073 2 (ug/L)

CWB Lead Total Micrograms/L 0.31 J 0.1 0.5 0.091 0.5 (ug/L)

CWB Mercury Total Nanograms/L 4.07 0.2 ng/L 0.5 ng/L 0.2 0.5 (ng/L)

CWB Nickel Total Micrograms/L 10.4 0.1 0.5 0.1 0.5 (ug/L)

CWB Selenium Total Micrograms/L 2.7 1 1 0.22 1 (ug/L)

CWB Silver Total Micrograms/L < 0.2 U 0.04 0.2 0.2 0.2 (ug/L)

CWB Thallium Total Micrograms/L < 0.1 U 0.09 0.36 0.1 0.1 (ug/L)

CWB Zinc Total Micrograms/L 21.2 0.5 2.5 0.79 2.5 (ug/L)

CWB Cyanide Total Micrograms/L M* NAF 5 10 (ug/L)

CWB Phenolics (Total Phenols) Total Micrograms/L M* NAF 50 (ug/L)

CWB 2-Chlorophenol Micrograms/L < 0.1 U 1 2 0.1 1 (ug/L)

CWB 2,4-Dichlorophenol Micrograms/L < 0.2 U 0.5 1 0.2 1 (ug/L)

CWB 2,4-Dimethylphenol Micrograms/L < 0.4 U 0.5 1 0.4 1 (ug/L)

CWB 4,6-Dinitro Micrograms/L < 0.3 U 1 2 0.3 1 Methylphenol (4,6 dinitro- (ug/L) o-cresol)(2-methyl-4,6-dinitrophenol)

CWB 2,4-Dinitrophenol Micrograms/L < 0.5 U 1 2 0.5 1 (ug/L)

CWB 2-Nitrophenol Micrograms/L < 0.2 U 0.5 1 0.2 1 (ug/L)

CWB 4-Nitrophenol Micrograms/L < 0.3 U 0.5 1 0.3 1 (ug/L)

CWB 4-Chloro-3-Methylphenol Micrograms/L < 0.2 U 1 2 0.2 1 (Parachlorometa cresol) (ug/L)

CWB Pentachlorophenol Micrograms/L < 0.2 U 0.5 1 0.2 0.4 (ug/L)

CWB Phenol Micrograms/L < 0.1 U 2 4 0.1 1 (ug/L)

CWB 2,4,6-Trichlorophenol Micrograms/L < 0.1 U 2 4 0.1 1 (ug/L)

CWB Acrolein Micrograms/L < 0.42 U 5 10 0.42 2 (ug/L)

I Washington State Department of Ecology Discharge Monitoring Report (DMR) Page: 2 of 5 CWB Acrylonitrile Micrograms/L < 0.2 U 1 2 0.2 2 (ug/L)

CWB Benzene Micrograms/L < 0.1 U 1 2 0.1 0.4 (ug/L)

CWB Bromoform Micrograms/L < 0.3 U 1 2 0.3 0.4 (ug/L)

CWB Carbon Tetrachloride Micrograms/L < 0.16 U 1 2 0.16 0.4 (ug/L)

CWB Chlorobenzene Micrograms/L < 0.26 U 1 2 0.26 0.4 (ug/L)

CWB Chloroethane Micrograms/L < 0.17 U 1 2 0.17 0.4 (ug/L)

CWB 2-Chloroethylvinylether Micrograms/L < 0.29 U 1 2 0.29 2 (ug/L)

CWB Chloroform Micrograms/L 0.7 1 2 0.18 0.4 (ug/L)

CWB Dibromochloromethane Micrograms/L < 0.25 U 1 2 0.25 0.4 (chlorodibromomethane) (ug/L)

CWB 1,2-Dichlorobenzene Micrograms/L < 0.3 U 1.9 7.6 0.3 0.4 (ug/L)

CWB 1,3-Dichlorobenzene Micrograms/L < 0.27 U 1.9 7.6 0.27 0.4 (ug/L)

CWB 1,4-Dichlorobenzene Micrograms/L < 0.3 U 4.4 17.6 0.3 0.4 (ug/L)

CWB Dichlorobromomethane Micrograms/L < 0.23 U 1 2 0.23 0.4 (ug/L)

CWB 1,1-Dichloroethane Micrograms/L < 0.18 U 1 2 0.18 0.4 (ug/L)

CWB 1,2-Dichloroethane Micrograms/L < 0.21 U 1 2 0.21 0.4 (ug/L)

CWB 1,1-Dichloroethene (1,1- Micrograms/L < 0.17 U 1 2 0.17 0.4 dichloroethylene) (ug/L)

CWB 1,2-Dichloropropane Micrograms/L < 0.2 U 1 2 0.2 0.4 (ug/L)

CWB 1,3-Dichloropropene (1,3 Micrograms/L < 0.27* U 1 2 0.27 0.4 Dichloropropylene) (ug/L)

CWB Ethylbenzene Micrograms/L < 0.24 U 1 2 0.24 0.4 (ug/L)

CWB Bromomethane (methyl Micrograms/L < 0.23 U 5 10 0.23 0.4 bromide) (ug/L)

CWB Chloromethane (methyl Micrograms/L < 0.24 U 1 2 0.24 0.4 chloride) (ug/L)

CWB Methylene Chloride Micrograms/L < 0.23 U 5 10 0.23 0.4 (ug/L)

CWB 1,1,2,2-Tetrachloroethane Micrograms/L < 0.31 U 1.9 2 0.31 0.4 (ug/L)

CWB Tetrachloroethene Micrograms/L < 0.2 U 1 2 0.2 0.4 (tetrachloroethylene) (ug/L)

CWB Toluene Micrograms/L < 0.2 U 1 2 0.2 0.4 (ug/L)

CWB 1,2 Trans- Micrograms/L < 0.18 U 1 2 0.18 0.4 Dichloroethylene OR (ug/L)

Trans 1,2 Dichloroethene (Ethylene dichloride)

CWB 1,1,1-Trichloroethane Micrograms/L < 0.19 U 1 2 0.19 0.4 (ug/L)

CWB 1,1,2-Trichloroethane Micrograms/L < 0.27 U 1 2 0.27 0.4 (ug/L)

CWB Trichloroethene Micrograms/L < 0.2 U 1 2 0.2 0.4 (Trichloroethylene) (ug/L)

CWB Vinyl Chloride Micrograms/L < 0.13 U 1 2 0.13 0.4 (ug/L)

CWB Acenaphthene Micrograms/L < 0.04 U 0.2 0.4 0.04 0.4 (ug/L)

CWB Acenaphthylene Micrograms/L < 0.07 U 0.3 0.6 0.07 0.4 (ug/L)

I Washington State Department of Ecology Discharge Monitoring Report (DMR) Page: 3 of 5 CWB Anthracene Micrograms/L < 0.05 U 0.3 0.6 0.05 0.4 (ug/L)

CWB Benzidine Micrograms/L <9 U 12 24 9 10 (ug/L)

CWB Butyl benzyl phthalate Micrograms/L < 0.03 U 0.3 0.6 0.03 0.4 (Benzyl butyl phthalate) (ug/L)

CWB Benzo(a)anthracene Micrograms/L < 0.05 U 0.3 0.6 0.05 0.4 (ug/L)

CWB Benzo(b)fluoranthene (3,4 Micrograms/L < 0.08 U 0.8 1.6 0.08 0.4

-Benzofluoranthene) (ug/L)

CWB Benzo(j)fluoranthene Micrograms/L < 0.4 U 0.5 1 0.4 1 (ug/L)

CWB Benzo(k)fluoranthene Micrograms/L < 0.08 U 0.8 1.6 0.08 0.4 (11,12-benzofluoranthene) (ug/L)

CWB Benzo(r,s,t)pentaphene Micrograms/L < 0.3 U 0.5 1 0.3 1 (dibenzo(a,i) pyrene) (ug/L)

CWB Benzo(a)pyrene Micrograms/L < 0.05 U 0.5 1 0.05 0.4 (ug/L)

CWB Benzo(ghi)perylene Micrograms/L < 0.05 U 0.5 1 0.05 0.4 (ug/L)

CWB Bis(2- Micrograms/L < 0.06 U 5.3 21.2 0.06 0.4 Chloroethoxy)Methane (ug/L)

CWB Bis(2-Chloroethyl)Ether Micrograms/L < 0.06 U 0.3 1 0.06 0.4 (ug/L)

CWB Bis(2-chloro Micrograms/L < 0.06* U 5.7 17.1 0.06 0.4 methylethyl)Ether (ug/L)

CWB Bis(2-Ethylhexyl) Micrograms/L < 0.1 U 0.1 0.5 0.1 0.4 Phthalate (ug/L)

CWB 4-Bromophenyl phenyl Micrograms/L < 0.04 U 0.2 0.4 0.04 0.4 ether (ug/L)

CWB 2-Chloronaphthalene Micrograms/L < 0.05 U 0.3 0.6 0.05 0.4 (ug/L)

CWB 4-Chlorophenyl- Micrograms/L < 0.04 U 0.3 0.5 0.04 0.4 Phenylether (ug/L)

CWB Chrysene Micrograms/L < 0.06 U 0.3 0.6 0.06 0.4 (ug/L)

CWB Dibenzo (a,h)acridine Micrograms/L < 0.4* U 2.5 10 0.4 1 (ug/L)

CWB Dibenzo (a,j)acridine Micrograms/L < 0.4* U 2.5 10 0.4 1 (ug/L)

CWB Dibenzo(a,h)anthracene Micrograms/L < 0.05 U 0.8 1.6 0.05 0.4 (ug/L)

CWB Dibenzo(a,e)pyrene Micrograms/L < 0.5* U 2.5 10 0.5 1 (ug/L)

CWB Dibenzo(a,h)pyrene Micrograms/L < 0.3* U 2.5 10 0.3 1 (ug/L)

CWB 3,3'-Dichlorobenzidine Micrograms/L < 0.2 U 0.5 1 0.2 0.2 (ug/L)

CWB Diethyl phthalate Micrograms/L < 0.06 U 1.9 7.6 0.06 0.4 (ug/L)

CWB Dimethyl phthalate Micrograms/L < 0.05 U 1.6 6.4 0.05 0.4 (ug/L)

CWB Dibutyl phthalate (Di-n- Micrograms/L < 0.07 U 0.5 1 0.07 0.4 butyl phthalate) (ug/L)

CWB 2,4-Dinitrotoluene Micrograms/L < 0.07 U 0.2 0.4 0.07 0.4 (ug/L)

CWB 2,6-Dinitrotoluene Micrograms/L < 0.09 U 0.2 0.4 0.09 0.4 (ug/L)

CWB Di-N-Octyl Phthalate Micrograms/L < 0.02 U 0.3 0.6 0.02 0.4 (ug/L)

CWB 1,2-Diphenylhydrazine Micrograms/L < 0.06* U 5 20 0.06 0.4 (ug/L)

CWB Fluoranthene Micrograms/L < 0.05 U 0.3 0.6 0.05 0.4 (ug/L)

CWB Fluorene Micrograms/L < 0.05 U 0.3 0.6 0.05 0.4 (ug/L)

I Washington State Department of Ecology Discharge Monitoring Report (DMR) Page: 4 of 5 CWB Hexachlorobenzene Micrograms/L < 0.06 U 0.3 0.6 0.06 0.4 (ug/L)

CWB Hexachlorobutadiene Micrograms/L < 0.09 U 0.5 1 0.09 0.4 (ug/L)

CWB Hexachlorocyclopentadie Micrograms/L < 0.2 U 0.5 1 0.2 0.4 ne (ug/L)

(hexachloropentadiene)

CWB Hexachloroethane Micrograms/L < 0.09 U 0.5 1 0.09 0.4 (ug/L)

CWB Indeno(1,2,3-cd)pyrene Micrograms/L < 0.09 U 0.5 1 0.09 0.4 (ug/L)

CWB Isophorone Micrograms/L < 0.07 U 0.5 1 0.07 0.4 (ug/L)

CWB 3-Methyl cholanthrene Micrograms/L < 0.4 U 2 8 0.4 1 (1,2-dihydro-3-methyl- (ug/L)

Benz[j]aceanthrylene)

CWB Naphthalene Micrograms/L < 0.06 U 0.3 0.6 0.06 0.4 (ug/L)

CWB Nitrobenzene Micrograms/L < 0.05 U 0.5 1 0.05 0.4 (ug/L)

CWB N-Nitrosodimethylamine Micrograms/L < 0.3 U 2 4 0.3 0.4 (ug/L)

CWB N-Nitrosodi-n-propylamine Micrograms/L < 0.1 U 0.5 1 0.1 0.4 (ug/L)

CWB N-Nitrosodiphenylamine Micrograms/L < 0.05 U 0.5 1 0.05 0.4 (ug/L)

CWB Perylene Micrograms/L < 0.6 U 1.9 7.6 0.6 1 (ug/L)

CWB Phenanthrene Micrograms/L < 0.06 U 0.3 0.6 0.06 0.4 (ug/L)

CWB Pyrene Micrograms/L < 0.05 U 0.3 0.6 0.05 0.4 (ug/L)

CWB 1,2,4-Trichlorobenzene Micrograms/L < 0.05 U 0.3 0.6 0.05 0.4 (ug/L)

CWB TCDD - Dioxin Picograms/L <5 U 1.3 pg/L 5 pg/L 5 Reporting Codes Used: B - Below Detection Limit/No Detection, M - Monitoring Is Conditional/Not Req This MP Outfall: 001 -

Monitoring Parameter Sample Date/ Value Notes/Comment Point Statistical Base CWB Bis(2-chloro 9/7/2021 Bl< 0.06 Permit references CAS 39638-35-9 methylethyl)Ether Micrograms/L (ug/L)

CWB Dibenzo (a,h)acridine 9/7/2021 Bl< 0.4 Method 625.1 used Micrograms/L (ug/L)

CWB Dibenzo (a,j)acridine 9/7/2021 Bl< 0.4 Method 625.1 used Micrograms/L (ug/L)

CWB Dibenzo(a,e)pyrene 9/7/2021 Bl< 0.5 Method 625.1 used Micrograms/L (ug/L)

CWB Dibenzo(a,h)pyrene 9/7/2021 Bl< 0.3 Method 625.1 used Micrograms/L (ug/L)

CWB 1,2-Diphenylhydrazine 9/7/2021 Bl< 0.06 Method 625.1 used Micrograms/L (ug/L)

CWB Chromium, Hexavalent 9/7/2021 MlM Analysis not required Total Micrograms/L (ug/L)

CWB Cyanide 9/7/2021 MlM Analysis required only 1/permit cycle Total Micrograms/L (ug/L)

, Washington State Department of Ecology Discharge Monitoring Report (DMR) Page: 5 of 5 CWB Phenolics (Total Phenols) 9/7/2021 MlM Analysis required only 1/permit cycle Total Micrograms/L (ug/L)

CWB 1,3-Dichloropropene (1,3 9/7/2021 Bl< 0.27 cis-1,3-dichloropropene and trans-1,3-dichloropropene Dichloropropylene)

Micrograms/L (ug/L)

I certify under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

Signature Date

Report of Analysis For: Energy Northwest - Monthly Cooling Water Monthly Cooling Water enwonmental Attn: Jane LePage services Authorized Signature: 20-Oct-21 CW Samples include annual priority pollutant analysis Client Sample ID: CW 24-hr composite Lab Sample ID: 220182-01 Site: CW Collection Date: 9/7/2021 8:54 AM Analyte CAS # Sample Result Method PQL MDL Analyst Analysis Date Calcium 7440-70-2 See Attached mg/L EPA 200.7 0.1 Anatek 9/21/2021 Iron 7439-89-6 See Attached mg/L EPA 200.7 0.01 0.000023 Anatek 9/21/2021 Magnesium 7439-95-4 See Attached mg/L EPA 200.7 0.1 Anatek 9/21/2021 Potassium 7440-09-7 See Attached mg/L EPA 200.7 0.5 Anatek 9/21/2021 Silicon 7440-21-3 See Attached mg/L EPA 200.7 0.1 Anatek 9/21/2021 Sodium 7440-23-5 See Attached mg/L EPA 200.7 0.1 Anatek 9/21/2021 Antimony 7440-36-0 See Attached mg/L EPA 200.8 0.001 0.000026 Edge_Anal. 9/23/2021 Arsenic 7440-38-2 See Attached mg/L EPA 200.8 0.0005 0.00027 Edge_Anal. 9/23/2021 Barium 7440-39-3 See Attached mg/L EPA 200.8 0.001 0.000056 Anatek 9/16/2021 Beryllium 7440-41-7 See Attached mg/L EPA 200.8 0.0003 0.0000056 Edge_Anal. 9/23/2021 Cadmium 7440-43-9 See Attached mg/L EPA 200.8 0.00025 0.000038 Edge_Anal. 9/23/2021 Chromium 7440-47-3 See Attached mg/L EPA 200.8 0.001 0.00023 Edge_Anal. 9/23/2021 Copper 7440-50-8 See Attached mg/L EPA 200.8 0.002 0.00014 Edge_Anal. 9/23/2021 Lead 7439-92-1 See Attached mg/L EPA 200.8 0.0005 0.000038 Edge_Anal. 9/23/2021 Manganese 7439-96-5 See Attached mg/L EPA 200.8 0.001 0.000045 Anatek 9/16/2021 PQL = Practical Quantitation Limit, MDL = Method Detection Limit, ND = Not Detected 350 Hills Street, Suite 107 Page 1 of 6 Richland, WA 99354-5511 (509) 377-8058

Client Sample ID: CW 24-hr composite Lab Sample ID: 220182-01 Site: CW Collection Date: 9/7/2021 8:54 AM Analyte CAS # Sample Result Method PQL MDL Analyst Analysis Date Nickel 7440-02-0 See Attached mg/L EPA 200.8 0.0005 0.000016 Edge_Anal. 9/23/2021 Selenium 7782-49-2 See Attached mg/L EPA 200.8 0.001 0.00014 Edge_Anal. 9/23/2021 Silver 7440-22-4 See Attached mg/L EPA 200.8 0.0002 0.000011 Edge_Anal. 9/23/2021 Thallium 7440-28-0 See Attached mg/L EPA 200.8 0.0001 0.000028 Edge_Anal. 9/23/2021 Titanium 7440-32-6 See Attached mg/L EPA 200.8 0.001 0.0011 Anatek 10/12/2021 Zinc 7440-66-6 See Attached mg/L EPA 200.8 0.0025 0.00014 Edge_Anal. 9/23/2021 Bromide 24959-67-9 <2 mg/L EPA 300.0 2 0.0017 tkroupa 9/7/2021 Chloride 16887-00-6 37 mg/L EPA 300.0 2.5 0.042 tkroupa 9/7/2021 Fluoride 16984-48-8 0.67 mg/L EPA 300.0 0.04 0.00026 tkroupa 9/7/2021 Nitrate (as N) 14797-55-8 0.90 mg/L EPA 300.0 0.05 0.022 tkroupa 9/7/2021 Nitrite (as N) 14797-65-0 < 0.05 mg/L EPA 300.0 0.05 0.00034 tkroupa 9/7/2021 Sulfate 14808-79-8 510 mg/L EPA 300.0 30 0.12 tkroupa 9/7/2021 Priority Pollutants, Acid-Extractable See Attached _ EPA 625 Edge_Anal. 9/15/2021 Bicarbonate alkalinity 135 mg CaCO3/L SM 2320B 5 dsmith 9/14/2021 Carbonate alkalinity <5 mg CaCO3/L SM 2320B 5 dsmith 9/14/2021 Total alkalinity 135 mg CaCO3/L SM 2320B 5 dsmith 9/14/2021 Conductivity NA 1231 µS/cm SM 2510B 1 acervantes 9/21/2021 Total dissolved solids 970 mg/L SM 2540C 5 acervantes 9/8/2021 Total suspended solids 5.0 mg/L SM 2540D 2 acervantes 9/9/2021 Ammonia (as N) < 0.1 mg/L SM 4500 NH3 0.1 jlepage 9/24/2021 pH 8.4 pH Units SM 4500-H 0.1 jlepage 9/7/2021 PQL = Practical Quantitation Limit, MDL = Method Detection Limit, ND = Not Detected ENERGY Page 2 of 6 350 Hills Street, Suite 107

___ NORTHWEST Richland, WA 99354-5511 (509) 377-8058

Client Sample ID: CW Grab Lab Sample ID: 220182-02 Site: CW Grab Collection Date: 9/7/2021 9:30 AM Analyte CAS # Sample Result Method PQL MDL Analyst Analysis Date Mercury 7439-97-6 See Attached µg/L EPA 1631E 0.0005 Anatek 9/14/2021 VOCs Attached µg/L EPA 624 Edge_Anal. 9/14/2021 Turbidity 4.0 NTU SM 2130 B 0.1 acervantes 9/7/2021 PQL = Practical Quantitation Limit, MDL = Method Detection Limit, ND = Not Detected ENERGY Page 3 of 6 350 Hills Street, Suite 107

___ NORTHWEST Richland, WA 99354-5511 (509) 377-8058

Burlington, WA Corporate Laboratory (a) Portland, OR Microbiology/Chemistry (c) 1620 S Walnut St - Burlington, WA 98233 - 800.755.9295

360.757.1400 9150 SW Pioneer Ct Ste W - Wilsonville, OR 97070 - 503.682.7802 Bellingham, WA Microbiology (b) Corvallis, OR Microbiology/Chemistry (d) 805 Orchard Dr Ste 4 - Bellingham, WA 98225 - 360.715.1212 1100 NE Circle Blvd, Ste 130 - Corvallis, OR 97330 - 541.753.4946 Bend, OR Microbiology (e) 20332 Empire Blvd Ste 4 - Bend, OR 97701 - 541.639.8425 September 28, 2021 Page 1 of 1 Jane LePage Energy Northwest 350 Hills St #107 Richland, WA 99354 RE: 21-34505 - Priority Pollutants

Dear Jane LePage,

Your project: Priority Pollutants, was received on Thursday September 09, 2021.

All samples were analyzed within the accepted holding times and were appropriately preserved and analyzed according to approved analytical protocols, unless noted in the data or QC reports. The quality control data was within laboratory acceptance limits, unless specified in the data or QC reports.

If you have questions phone us at 800 755-9295.

Respectfully Lawrence J Henderson, PhD Director of Laboratories, Vice President

Enclosures:

Data Report QC Reports Chain of Custody FORM: COVER Rev 2

Burlington, WA Corporate Laboratory (a) Portland, OR Microbiology/Chemistry (c) 1620 S Walnut St - Burlington, WA 98233 - 800.755.9295

360.757.1400 9150 SW Pioneer Ct Ste W - Wilsonville, OR 97070 - 503.682.7802 f Bellingham, WA Microbiology (b) 805 Orchard Dr Ste 4 - Bellingham, WA 98225 - 360.715.1212 Corvallis, OR Microbiology/Chemistry (d) 1100 NE Circle Blvd, Ste 130 - Corvallis, OR 97330 - 541.753.4946 Bend, OR Microbiology (e)

ANALYTICAL 20332 Empire Blvd Ste 4 - Bend, OR 97701 - 541.639.8425 Revised 9.28.21 Page 1 of 1 Data Report Client Name: Energy Northwest Reference Number: 21-34505 350 Hills St #107 Project: Priority Pollutants Richland, WA 99354 Report Date: 9/27/21 Date Received: 9/9/21 Approved by: bj Authorized by:

Lawrence J Henderson, PhD Director of Laboratories, Vice President Sample

Description:

220182-01 CW 24hr Composite Matrix WW Sample Date: 9/7/21 8:54 am Lab Number: 66389 Sample Comment: Collected By:

CAS ID# Parameter Result PQL MDL Units DF Method Lab Analyzed Analyst Batch Comment 7440-41-7 BERYLLIUM ND 0.0003 0.00012 mg/L 1.0 200.8/TR a 9/23/21 BSP 200.8_210923B2 7440-47-3 CHROMIUM 0.0028 0.001 0.00036 mg/L 1.0 200.8/TR a 9/23/21 BSP 200.8_210923B2 7440-02-0 NICKEL 0.0104 0.0005 0.0001 mg/L 1.0 200.8/TR a 9/23/21 BSP 200.8_210923B2 7440-50-8 COPPER 0.0145 0.002 7.30E-05 mg/L 1.0 200.8/TR a 9/23/21 BSP 200.8_210923B2 7440-66-6 ZINC 0.0212 0.0025 0.00079 mg/L 1.0 200.8/TR a 9/23/21 BSP 200.8_210923B2 7440-38-2 ARSENIC 0.0056 0.0005 0.0005 mg/L 1.0 200.8/TR a 9/23/21 BSP 200.8_210923B2 7782-49-2 SELENIUM 0.0027 0.001 0.00022 mg/L 1.0 200.8/TR a 9/23/21 BSP 200.8_210923B2 7440-22-4 SILVER ND 0.0002 0.0002 mg/L 1.0 200.8/TR a 9/23/21 BSP 200.8_210923B2 7440-36-0 ANTIMONY 0.0012 0.001 0.0004 mg/L 1.0 200.8/TR a 9/23/21 BSP 200.8_210923B2 7440-43-9 CADMIUM ND 0.00025 9.00E-05 mg/L 1.0 200.8/TR a 9/23/21 BSP 200.8_210923B2 7439-92-1 LEAD 0.00031 J 0.0005 9.10E-05 mg/L 1.0 200.8/TR a 9/23/21 BSP 200.8_210923B2 7440-28-0 THALLIUM ND 0.0001 0.0001 mg/L 1.0 200.8/TR a 9/23/21 BSP 200.8_210923B2 7439-97-6 MERCURY ND 0.0002 5.10E-05 mg/L 1.0 245.1 a 9/17/21 TJB 245.1_210917 Notes:

ND = Not detected above the listed practical quantitation limit (PQL) or not above the Method Detection Limit (MDL), if requested.

PQL = Practical Quantitation Limit is the lowest level that can be achieved within specified limits of precision and accuracy during routine laboratory operating conditions.

D.F. - Dilution Factor If you have any questions concerning this report contact us at the above phone number.

Form: cRslt_2.rpt

Burlington, WA Corporate Laboratory (a) Portland, OR Microbiology/Chemistry (c) 1620 S Walnut St - Burlington, WA 98233 - 800.755.9295

360.757.1400 9150 SW Pioneer Ct Ste W - Wilsonville, OR 97070 - 503.682.7802 Bellingham, WA Microbiology (b) Corvallis, OR Microbiology/Chemistry (d) 805 Orchard Dr Ste 4 - Bellingham, WA 98225 - 360.715.1212 1100 NE Circle Blvd, Ste 130 - Corvallis, OR 97330 - 541.753.4946 Bend, OR Microbiology (e)

ANALYTICAL 20332 Empire Blvd Ste 4 - Bend, OR 97701 - 541.639.8425 Revised 9.28.21 WSDOE Lab C567 DATA REPORT Page 1 of 4 Client Name: Energy Northwest Reference Number: 21-34505 350 Hills St #107 Project: Priority Pollutants Richland, WA 99354 Lab Number: 66389 Report Date: 9/27/21 Field ID: 220182-01 Date Analyzed: 9/15/21 Sample

Description:

CW 24hr Composite Analyst: NML Matrix: Wastewater Analytical Method: 625.1 Sample Date: 9/7/21 Batch: 625_210913 Extraction Date: 9/13/21 Approved By: hy Extraction Method: 3510C Authorized by:

Lawrence J Henderson, PhD Director of Laboratories, Vice President Lab CAS Compound RESULT Flag UNITS QL MDL D.F. Lab COMMENT Acid Extractables 88-06-2 2,4,6-TRICHLOROPHENOL ND ug/L 1 0.1 1.00 a 120-83-2 2,4-DICHLOROPHENOL ND ug/L 1 0.2 1.00 a 105-67-9 2,4-DIMETHYLPHENOL ND ug/L 1 0.4 1.00 a 51-28-5 2,4-DINITROPHENOL ND ug/L 1 0.5 1.00 a 95-57-8 2-CHLOROPHENOL ND ug/L 1 0.1 1.00 a 88-75-5 2-NITROPHENOL ND ug/L 1 0.2 1.00 a 534-52-1 4,6-DINITRO-2-METHYLPHENOL ND ug/L 1 0.3 1.00 a 59-50-7 4-CHLORO-3-METHYLPHENOL ND ug/L 1 0.2 1.00 a 100-02-7 4-NITROPHENOL ND ug/L 1 0.3 1.00 a 87-86-5 PENTACHLOROPHENOL ND ug/L 0.4 0.2 1.00 a 108-95-2 PHENOL ND ug/L 1 0.1 1.00 a Base/Neutral Extractables 120-82-1 1,2,4-TRICHLOROBENZENE ND ug/L 0.4 0.05 1.00 a 122-66-7 1,2-DIPHENYLHYDRAZINE ND ug/L 0.4 0.06 1.00 a as Azobenzene 121-14-2 2,4-DINITROTOLUENE ND ug/L 0.4 0.07 1.00 a 606-20-2 2,6-DINITROTOLUENE ND ug/L 0.4 0.09 1.00 a 91-58-7 2-CHLORONAPHTHALENE ND ug/L 0.4 0.05 1.00 a 91-94-1 3,3-DICHLOROBENZIDINE ND ug/L 0.2 0.2 1.00 a 101-55-3 4-BROMOPHENYL PHENYL ETHER ND ug/L 0.4 0.04 1.00 a 7005-72-3 4-CHLOROPHENYL PHENYL ETHER ND ug/L 0.4 0.04 1.00 a 83-32-9 ACENAPHTHENE ND ug/L 0.4 0.04 1.00 a 208-96-8 ACENAPHTHYLENE ND ug/L 0.4 0.07 1.00 a 120-12-7 ANTHRACENE ND ug/L 0.4 0.05 1.00 a 56-55-3 BENZ[A]ANTHRACENE ND ug/L 0.4 0.05 1.00 a 92-87-5 BENZIDINE ND ug/L 10 9. 1.00 a screening method 50-32-8 BENZO(A)PYRENE ND ug/L 0.4 0.05 1.00 a 205-99-2 BENZO[B]FLUORANTHENE ND ug/L 0.4 0.08 1.00 a unresolved w/

Benzo(J)Fluoranthene Notes:

Flags are data qualifiers. If there are data qualifiers on your report definitions can be found on an accompanying sheet.

ND - indicates the compound was not detected above the PQL or MDL.

Lab QL = Laboratory Quantitation Limit is the lowest level that can be achieved within specified limits of precision and accuracy during routine laboratory operating conditions.

Permit QL = Quantitation Limt required by permit (listed in Appendix A) or other regulatory requirement.

D.F. - Dilution Factor.

If you have any questions concerning this report contact us at the above phone number.

Form: c608.rpt

Reference Number: 21-34505 Page 2 of 4 Lab Number: 66389 ANALYTICAL Report Date: 9/27/21 Lab Number: 66389 Report Date: 9/27/21 Field ID: 220182-01 Date Analyzed: 9/15/21 Sample

Description:

CW 24hr Composite Analyst: NML Matrix: Wastewater Analytical Method: 625.1 Sample Date: 9/7/21 Batch: 625_210913 Extraction Date: 9/13/21 Approved By: hy Extraction Method: 3510C Lab CAS Compound RESULT Flag UNITS QL MDL D.F. Lab COMMENT 191-24-2 BENZO[G,H,I]PERYLENE ND ug/L 0.4 0.05 1.00 a 207-08-9 BENZO[K]FLUORANTHENE ND ug/L 0.4 0.08 1.00 a 85-68-7 BENZYL BUTYL PHTHALATE ND ug/L 0.4 0.03 1.00 a 108-60-1 BIS(2-CHLORO-1-METHYLETHYL)ETHE ND ug/L 0.4 0.06 1.00 a R

111-91-1 Bis(2-CHLOROETHOXY)METHANE ND ug/L 0.4 0.06 1.00 a 111-44-4 BIS(2-CHLOROETHYL)ETHER ND ug/L 0.4 0.06 1.00 a 218-01-9 CHRYSENE ND ug/L 0.4 0.06 1.00 a 117-81-7 DI(2-ETHYLHEXYL)PHTHALATE ND ug/L 0.4 0.1 1.00 a 53-70-3 DIBENZO[A,H]ANTHRACENE ND ug/L 0.4 0.05 1.00 a 84-66-2 DIETHYL PHTHALATE ND ug/L 0.4 0.06 1.00 a 131-11-3 DIMETHYL PHTHALATE ND ug/L 0.4 0.05 1.00 a 84-74-2 DI-N-BUTYL PHTHALATE ND ug/L 0.4 0.07 1.00 a 117-84-0 DI-N-OCTYL PHTHALATE ND ug/L 0.4 0.02 1.00 a 206-44-0 FLUORANTHENE ND ug/L 0.4 0.05 1.00 a 86-73-7 FLUORENE ND ug/L 0.4 0.05 1.00 a 118-74-1 HEXACHLOROBENZENE ND ug/L 0.4 0.06 1.00 a 87-68-3 HEXACHLOROBUTADIENE ND ug/L 0.4 0.09 1.00 a 77-47-4 HEXACHLOROCYCLOPENTADIENE ND ug/L 0.4 0.2 1.00 a 67-72-1 HEXACHLOROETHANE ND ug/L 0.4 0.09 1.00 a 193-39-5 INDENO[1,2,3,C,D]PYRENE ND ug/L 0.4 0.09 1.00 a 78-59-1 ISOPHORONE ND ug/L 0.4 0.07 1.00 a 91-20-3 NAPHTHALENE ND ug/L 0.4 0.06 1.00 a 98-95-3 NITROBENZENE ND ug/L 0.4 0.05 1.00 a 62-75-9 N-NITROSODIMETHYLAMINE ND ug/L 0.4 0.3 1.00 a 621-64-7 N-NITROSODI-N-PROPYLAMINE ND ug/L 0.4 0.1 1.00 a 86-30-6 N-NITROSODIPHENYLAMINE ND ug/L 0.4 0.05 1.00 a as Diphenylamine 85-01-8 PHENANTHRENE ND ug/L 0.4 0.06 1.00 a 129-00-0 PYRENE ND ug/L 0.4 0.05 1.00 a Ecology Priority Toxic Chemicals 56-49-5 3-METHYL CHOLANTHRENE ND ug/L 1 0.4 1.00 a 205-82-3 BENZO(J)FLUORANTHENE ND ug/L 1 0.4 1.00 a unresolved w/

Benzo(B)Fluoranthene 189-55-9 BENZO(R,S,T)PENTAPHENE ND ug/L 1 0.3 1.00 a 192-65-4 DIBENZO(A,E)PYRENE ND ug/L 1 0.5 1.00 a 226-36-8 DIBENZO(A,H)ACRIDINE ND ug/L 1 0.4 1.00 a 189-64-0 DIBENZO(A,H)PYRENE ND ug/L 1 0.3 1.00 a 224-42-0 DIBENZO(A,J)ACRIDINE ND ug/L 1 0.4 1.00 a 198-55-0 PERYLENE ND ug/L 1 0.6 1.00 a Notes:

Flags are data qualifiers. If there are data qualifiers on your report definitions can be found on an accompanying sheet.

ND - indicates the compound was not detected above the PQL or MDL.

Lab QL = Laboratory Quantitation Limit is the lowest level that can be achieved within specified limits of precision and accuracy during routine laboratory operating conditions.

Permit QL = Quantitation Limt required by permit (listed in Appendix A) or other regulatory requirement.

D.F. - Dilution Factor.

Form: c608.rpt

Reference Number: 21-34505 Page 3 of 4 Lab Number: 66390 ANALYTICAL Report Date: 9/27/21 Lab Number: 66390 Report Date: 9/27/21 Field ID: 220182-02 Date Analyzed: 9/14/21 Sample

Description:

CW Grab Analyst: GSL Matrix: Wastewater Analytical Method: 624(pH4)

Sample Date: 9/7/21 Batch: 624_210914 Extraction Date: 9/14/21 Approved By: hy Extraction Method: 5030B Lab CAS Compound RESULT Flag UNITS QL MDL D.F. Lab COMMENT 107-02-8 ACROLEIN ND ug/L 2.0 0.42 1.00 a 107-13-1 ACRYLONITRILE ND ug/L 2.0 0.2 1.00 a Notes:

Flags are data qualifiers. If there are data qualifiers on your report definitions can be found on an accompanying sheet.

ND - indicates the compound was not detected above the PQL or MDL.

Lab QL = Laboratory Quantitation Limit is the lowest level that can be achieved within specified limits of precision and accuracy during routine laboratory operating conditions.

Permit QL = Quantitation Limt required by permit (listed in Appendix A) or other regulatory requirement.

D.F. - Dilution Factor.

Form: c608.rpt

Reference Number: 21-34505 Page 4 of 4 Lab Number: 66390 ANALYTICAL Report Date: 9/27/21 Lab Number: 66390 Report Date: 9/27/21 Field ID: 220182-02 Date Analyzed: 9/14/21 Sample

Description:

CW Grab Analyst: GSL Matrix: Wastewater Analytical Method: 624.1 Sample Date: 9/7/21 Batch: 624_210914 Extraction Date: 9/14/21 Approved By: hy Extraction Method: 5030B Lab CAS Compound RESULT Flag UNITS QL MDL D.F. Lab COMMENT 71-43-2 BENZENE ND ug/L 0.4 0.1 1.00 a 75-27-4 BROMODICHLOROMETHANE ND ug/L 0.4 0.23 1.00 a 75-25-2 BROMOFORM ND ug/L 0.4 0.3 1.00 a 74-83-9 BROMOMETHANE ND ug/L 0.4 0.23 1.00 a 56-23-5 CARBON TETRACHLORIDE ND ug/L 0.4 0.16 1.00 a 108-90-7 CHLOROBENZENE ND ug/L 0.4 0.26 1.00 a 75-00-3 CHLOROETHANE ND ug/L 0.4 0.17 1.00 a 110-75-8 2-CHLOROETHYL VINYL ETHER ND ug/L 2.0 0.29 1.00 a 67-66-3 CHLOROFORM 0.7 ug/L 0.4 0.18 1.00 a 74-87-3 CHLOROMETHANE ND ug/L 0.4 0.24 1.00 a 124-48-1 CHLORODIBROMOMETHANE ND ug/L 0.4 0.25 1.00 a 95-50-1 1,2-DICHLOROBENZENE ND ug/L 0.4 0.3 1.00 a 541-73-1 1,3-DICHLOROBENZENE ND ug/L 0.4 0.27 1.00 a 106-46-7 1,4-DICHLOROBENZENE ND ug/L 0.4 0.3 1.00 a 75-34-3 1,1 - DICHLOROETHANE ND ug/L 0.4 0.18 1.00 a 107-06-2 1,2 - DICHLOROETHANE ND ug/L 0.4 0.21 1.00 a 75-35-4 1,1 - DICHLOROETHYLENE ND ug/L 0.4 0.17 1.00 a 156-60-5 T - 1,2 - DICHLOROETHYLENE ND ug/L 0.4 0.18 1.00 a 75-71-8 DICHLORODIFLUOROMETHANE ND ug/L 0.5 0.21 1.00 a 78-87-5 1,2 - DICHLOROPROPANE ND ug/L 0.4 0.2 1.00 a 10061-01-5 CIS - 1,3 - DICHLOROPROPENE ND ug/L 0.4 0.24 1.00 a 10061-02-6 TRANS- 1,3 - DICHLOROPROPENE ND ug/L 0.4 0.27 1.00 a 100-41-4 ETHYLBENZENE ND ug/L 0.4 0.24 1.00 a 75-09-2 METHYLENE CHLORIDE ND ug/L 0.4 0.23 1.00 a 100-42-5 STYRENE ND ug/L 0.4 0.28 1.00 a 79-34-5 1,1,2,2 - TETRACHLOROETHANE ND ug/L 0.4 0.31 1.00 a 127-18-4 TETRACHLOROETHYLENE ND ug/L 0.4 0.2 1.00 a 108-88-3 TOLUENE ND ug/L 0.4 0.2 1.00 a 71-55-6 1,1,1 - TRICHLOROETHANE ND ug/L 0.4 0.19 1.00 a 79-00-5 1,1,2 - TRICHLOROETHANE ND ug/L 0.4 0.27 1.00 a 79-01-6 TRICHLOROETHYLENE ND ug/L 0.4 0.2 1.00 a 75-01-4 VINYL CHLORIDE ND ug/L 0.4 0.13 1.00 a Notes:

Flags are data qualifiers. If there are data qualifiers on your report definitions can be found on an accompanying sheet.

ND - indicates the compound was not detected above the PQL or MDL.

Lab QL = Laboratory Quantitation Limit is the lowest level that can be achieved within specified limits of precision and accuracy during routine laboratory operating conditions.

Permit QL = Quantitation Limt required by permit (listed in Appendix A) or other regulatory requirement.

D.F. - Dilution Factor.

Form: c608.rpt

Page 1 of 8 SAMPLE INDEPENDENT QUALITY CONTROL REPORT Reference Number: 21-34505 Report Date: 09/28/21 True % QC QC Batch Analyte Result Value Units Method Recovery Limits* Qualifier Type Comment Calibration Check 200.8_210923B2 0 ANTIMONY 0.00101 0.001 mg/L 200.8 101 80-120 CAL 0 ARSENIC 0.00101 0.001 mg/L 200.8 101 80-120 CAL 0 BERYLLIUM 0.001 0.001 mg/L 200.8 100 80-120 CAL 0 CADMIUM 0.00104 0.001 mg/L 200.8 104 80-120 CAL 0 CHROMIUM 0.00102 0.001 mg/L 200.8 102 80-120 CAL 0 COPPER 0.00102 0.001 mg/L 200.8 102 80-120 CAL 0 LEAD 0.001 0.001 mg/L 200.8 100 80-120 CAL 0 NICKEL 0.00105 0.001 mg/L 200.8 105 80-120 CAL 0 SELENIUM 0.001 0.001 mg/L 200.8 100 80-120 CAL 0 SILVER 0.00088 0.001 mg/L 200.8 88 80-120 CAL 0 THALLIUM 0.00101 0.001 mg/L 200.8 101 80-120 CAL 0 ZINC 0.00117 0.001 mg/L 200.8 117 80-120 CAL 245.1_210917 0 MERCURY 0.00199 0.002 mg/L 245.1 100 95-105 CAL

Notation:

% Recovery = (Result of Analysis)/(True Value)

100 NA = Indicates % Recovery could not be calculated.

Limits are intended for water matrices only. These criteria are for guidance only when reported with soils/solids.

FORM: QCIndependent4.rpt

Page 2 of 8 SAMPLE INDEPENDENT QUALITY CONTROL REPORT Reference Number: 21-34505 Report Date: 09/28/21 True % QC QC Batch Analyte Result Value Units Method Recovery Limits* Qualifier Type Comment Laboratory Fortified Blank 200.8_210923B2 0 ANTIMONY 0.0117 0.0125 mg/L 200.8 94 85-115 LFB 0 ARSENIC 0.0127 0.0125 mg/L 200.8 102 85-115 LFB 0 BERYLLIUM 0.0131 0.0125 mg/L 200.8 105 85-115 LFB 0 CADMIUM 0.0135 0.0125 mg/L 200.8 108 85-115 LFB 0 CHROMIUM 0.0127 0.0125 mg/L 200.8 102 85-115 LFB 0 COPPER 0.0128 0.0125 mg/L 200.8 102 85-115 LFB 0 LEAD 0.0129 0.0125 mg/L 200.8 103 85-115 LFB 0 NICKEL 0.0132 0.0125 mg/L 200.8 106 85-115 LFB 0 SELENIUM 0.0125 0.0125 mg/L 200.8 100 85-115 LFB 0 SILVER 0.00565 0.00625 mg/L 200.8 90 85-115 LFB 0 THALLIUM 0.0126 0.0125 mg/L 200.8 101 85-115 LFB 0 ZINC 0.0134 0.0125 mg/L 200.8 107 85-115 LFB 245.1_210917 0 MERCURY 0.00166 0.00167 mg/L 245.1 99 85-115 LFB 624_210914 0 1,1 - DICHLOROETHANE 3.9 4 ug/L 624.1 98 59-155 LFB 0 1,1 - DICHLOROETHYLENE 4.0 4 ug/L 624.1 100 1-234 LFB 0 1,1,1 - TRICHLOROETHANE 4.0 4 ug/L 624.1 100 52-162 LFB 0 1,1,2 - TRICHLOROETHANE 4.1 4 ug/L 624.1 103 52-150 LFB 0 1,1,2,2 - TETRACHLOROETHANE 3.8 4 ug/L 624.1 95 46-157 LFB 0 1,2 - DICHLOROETHANE 4.1 4 ug/L 624.1 103 49-155 LFB 0 1,2 - DICHLOROPROPANE 3.8 4 ug/L 624.1 95 1-210 LFB 0 1,2-DICHLOROBENZENE 3.8 4 ug/L 624.1 95 18-190 LFB 0 1,3-DICHLOROBENZENE 3.7 4 ug/L 624.1 93 59-156 LFB 0 1,4-DICHLOROBENZENE 3.7 4 ug/L 624.1 93 18-190 LFB 0 2-CHLOROETHYL VINYL ETHER 9.6 10 ug/L 624.1 96 2-305 LFB 0 BENZENE 4.0 4 ug/L 624.1 100 37-151 LFB 0 BROMODICHLOROMETHANE 4.0 4 ug/L 624.1 100 35-155 LFB 0 BROMOFORM 3.9 4 ug/L 624.1 98 45-169 LFB 0 BROMOMETHANE 3.4 4 ug/L 624.1 85 1-242 LFB 0 CARBON TETRACHLORIDE 4.1 4 ug/L 624.1 103 70-140 LFB 0 CHLOROBENZENE 3.9 4 ug/L 624.1 98 37-160 LFB 0 CHLORODIBROMOMETHANE 3.9 4 ug/L 624.1 98 53-149 LFB 0 CHLOROETHANE 3.7 4 ug/L 624.1 93 14-230 LFB 0 CHLOROFORM 3.8 4 ug/L 624.1 95 15-138 LFB 0 CHLOROMETHANE 4.1 4 ug/L 624.1 103 1-273 LFB 0 CIS - 1,3 - DICHLOROPROPENE 3.8 4 ug/L 624.1 95 1-227 LFB 0 ETHYLBENZENE 3.5 4 ug/L 624.1 88 37-162 LFB 0 METHYLENE CHLORIDE 4.0 4 ug/L 624.1 100 1-221 LFB 0 STYRENE 3.6 4 ug/L 624.1 90 70-130 LFB 0 T - 1,2 - DICHLOROETHYLENE 3.9 4 ug/L 624.1 98 54-156 LFB 0 TETRACHLOROETHYLENE 4.1 4 ug/L 624.1 103 64-148 LFB 0 TOLUENE 3.9 4 ug/L 624.1 98 47-150 LFB 0 TRANS- 1,3 - DICHLOROPROPENE 4.0 4 ug/L 624.1 100 17-183 LFB 0 TRICHLOROETHYLENE 3.8 4 ug/L 624.1 95 71-157 LFB

Notation:

% Recovery = (Result of Analysis)/(True Value)

100 NA = Indicates % Recovery could not be calculated.

Limits are intended for water matrices only. These criteria are for guidance only when reported with soils/solids.

FORM: QCIndependent4.rpt

Page 3 of 8 SAMPLE INDEPENDENT QUALITY CONTROL REPORT Reference Number: 21-34505 Report Date: 09/28/21 True % QC QC Batch Analyte Result Value Units Method Recovery Limits* Qualifier Type Comment Laboratory Fortified Blank 624_210914 0 VINYL CHLORIDE 4.0 4 ug/L 624.1 100 1-251 LFB 0 ACROLEIN 12.0 10 ug/L 624.1 120 60-140 LFB 0 ACRYLONITRILE 20.0 20 ug/L 624.1 100 60-140 LFB 625_210913 0 2 - FLUOROBIPHENYL (Surr) 72 % 625.1 53-140 LFB 0 2 - FLUOROPHENOL (Surr) 49 % 625.1 29-140 LFB 0 2,4,6 - TRIBROMOPHENOL (Surr) 71 % 625.1 39-140 LFB 0 d5-NITROBENZENE (Surr) 80 % 625.1 50-140 LFB 0 d5-PHENOL (Surr) 35 % 625.1 23-140 LFB 0 p-TERPHENYL-d14 (Surr) 68 % 625.1 60-140 LFB 0 2,4,6-TRICHLOROPHENOL 7.5 10 ug/L 625.1 75 52-129 LFB 0 2,4-DICHLOROPHENOL 8.6 10 ug/L 625.1 86 53-122 LFB 0 2,4-DIMETHYLPHENOL 8.7 10 ug/L 625.1 87 42-120 LFB 0 2,4-DINITROPHENOL 4.7 10 ug/L 625.1 47 1-173 LFB 0 2-CHLOROPHENOL 7.5 10 ug/L 625.1 75 36-120 LFB 0 2-NITROPHENOL 8.6 10 ug/L 625.1 86 45-167 LFB 0 4,6-DINITRO-2-METHYLPHENOL 6.4 10 ug/L 625.1 64 53-130 LFB 0 4-CHLORO-3-METHYLPHENOL 8.1 10 ug/L 625.1 81 41-128 LFB 0 4-NITROPHENOL 3.3 10 ug/L 625.1 33 13-129 LFB 0 PENTACHLOROPHENOL 4.1 10 ug/L 625.1 41 38-152 LFB 0 PHENOL 4.1 10 ug/L 625.1 41 17-120 LFB 0 1,2,4-TRICHLOROBENZENE 7.7 10 ug/L 625.1 77 57-130 LFB 0 1,2-DIPHENYLHYDRAZINE 8.0 10 ug/L 625.1 80 71-125 LFB 0 2,4-DINITROTOLUENE 8.0 10 ug/L 625.1 80 48-127 LFB 0 2,6-DINITROTOLUENE 7.9 10 ug/L 625.1 79 68-137 LFB 0 2-CHLORONAPHTHALENE 7.5 10 ug/L 625.1 75 65-120 LFB 0 3,3-DICHLOROBENZIDINE 0.9 1 ug/L 625.1 90 8-213 LFB 0 4-BROMOPHENYL PHENYL ETHER 8.0 10 ug/L 625.1 80 65-120 LFB 0 4-CHLOROPHENYL PHENYL ETHER 7.9 10 ug/L 625.1 79 38-145 LFB 0 ACENAPHTHENE 7.9 10 ug/L 625.1 79 60-132 LFB 0 ACENAPHTHYLENE 7.7 10 ug/L 625.1 77 54-126 LFB 0 ANTHRACENE 8.0 10 ug/L 625.1 80 43-120 LFB 0 BENZ[A]ANTHRACENE 8.1 10 ug/L 625.1 81 42-133 LFB 0 BENZIDINE 12.2 25 ug/L 625.1 49 1-125 LFB 0 BENZO(A)PYRENE 7.9 10 ug/L 625.1 79 32-148 LFB 0 BENZO[B]FLUORANTHENE 15.6 20 ug/L 625.1 78 42-140 LFB 0 BENZO[G,H,I]PERYLENE 6.5 10 ug/L 625.1 65 1-195 LFB 0 BENZO[K]FLUORANTHENE 8.0 10 ug/L 625.1 80 25-146 LFB 0 BENZYL BUTYL PHTHALATE 5.4 10 ug/L 625.1 54 1-140 LFB 0 BIS(2-CHLORO-1-METHYLETHYL)ETHER 8.2 10 ug/L 625.1 82 63-139 LFB 0 Bis(2-CHLOROETHOXY)METHANE 8.9 10 ug/L 625.1 89 49-165 LFB 0 BIS(2-CHLOROETHYL)ETHER 8.2 10 ug/L 625.1 82 43-126 LFB 0 CHRYSENE 8.1 10 ug/L 625.1 81 44-140 LFB 0 DI(2-ETHYLHEXYL)PHTHALATE 5.6 10 ug/L 625.1 56 29-137 LFB

Notation:

% Recovery = (Result of Analysis)/(True Value)

100 NA = Indicates % Recovery could not be calculated.

Limits are intended for water matrices only. These criteria are for guidance only when reported with soils/solids.

FORM: QCIndependent4.rpt

Page 4 of 8 SAMPLE INDEPENDENT QUALITY CONTROL REPORT Reference Number: 21-34505 Report Date: 09/28/21 True % QC QC Batch Analyte Result Value Units Method Recovery Limits* Qualifier Type Comment Laboratory Fortified Blank 625_210913 0 DIBENZO[A,H]ANTHRACENE 6.3 10 ug/L 625.1 63 1-200 LFB 0 DIETHYL PHTHALATE 6.3 10 ug/L 625.1 63 1-120 LFB 0 DIMETHYL PHTHALATE 4.3 10 ug/L 625.1 43 1-120 LFB 0 DI-N-BUTYL PHTHALATE 7.4 10 ug/L 625.1 74 8-120 LFB 0 DI-N-OCTYL PHTHALATE 5.3 10 ug/L 625.1 53 19-132 LFB 0 FLUORANTHENE 7.9 10 ug/L 625.1 79 43-121 LFB 0 FLUORENE 8.0 10 ug/L 625.1 80 70-120 LFB 0 HEXACHLOROBENZENE 7.7 10 ug/L 625.1 77 8-142 LFB 0 HEXACHLOROBUTADIENE 6.1 10 ug/L 625.1 61 38-120 LFB 0 HEXACHLOROCYCLOPENTADIENE 6.1 10 ug/L 625.1 61 14-170 LFB 0 HEXACHLOROETHANE 6.8 10 ug/L 625.1 68 55-120 LFB 0 INDENO[1,2,3,C,D]PYRENE 6.7 10 ug/L 625.1 67 1-151 LFB 0 ISOPHORONE 8.8 10 ug/L 625.1 88 47-180 LFB 0 NAPHTHALENE 7.6 10 ug/L 625.1 76 36-120 LFB 0 NITROBENZENE 8.6 10 ug/L 625.1 86 54-158 LFB 0 N-NITROSODIMETHYLAMINE 5.2 10 ug/L 625.1 52 20-116 LFB 0 N-NITROSODI-N-PROPYLAMINE 8.6 10 ug/L 625.1 86 14-198 LFB 0 N-NITROSODIPHENYLAMINE 8.5 10 ug/L 625.1 85 65-137 LFB 0 PHENANTHRENE 7.8 10 ug/L 625.1 78 65-120 LFB 0 PYRENE 7.7 10 ug/L 625.1 77 70-120 LFB 0 3-METHYL CHOLANTHRENE 7.0 10 ug/L 625.1 70 57-119 LFB 0 BENZO(J)FLUORANTHENE 15.6 20 ug/L 625.1 78 42-140 LFB 0 BENZO(R,S,T)PENTAPHENE 3.6 10 ug/L 625.1 36 1-172 LFB 0 DIBENZO(A,E)PYRENE 3.7 10 ug/L 625.1 37 1-199 LFB 0 DIBENZO(A,H)ACRIDINE 8.1 10 ug/L 625.1 81 60-131 LFB 0 DIBENZO(A,H)PYRENE 2.7 10 ug/L 625.1 27 4-160 LFB 0 DIBENZO(A,J)ACRIDINE 8.4 10 ug/L 625.1 84 55-136 LFB 0 PERYLENE 7.6 10 ug/L 625.1 76 57-125 LFB Laboratory Reagent Blank 200.8_210923B2 0 ANTIMONY ND mg/L 200.8 0-0 LRB 0 ARSENIC ND mg/L 200.8 0-0 LRB 0 BERYLLIUM ND mg/L 200.8 0-0 LRB 0 CADMIUM ND mg/L 200.8 0-0 LRB 0 CHROMIUM ND mg/L 200.8 0-0 LRB 0 COPPER ND mg/L 200.8 0-0 LRB 0 LEAD ND mg/L 200.8 0-0 LRB 0 NICKEL ND mg/L 200.8 0-0 LRB 0 SELENIUM ND mg/L 200.8 0-0 LRB 0 SILVER ND mg/L 200.8 0-0 LRB 0 THALLIUM ND mg/L 200.8 0-0 LRB 0 ZINC ND mg/L 200.8 0-0 LRB 245.1_210917 0 MERCURY ND mg/L 245.1 0-0 LRB

Notation:

% Recovery = (Result of Analysis)/(True Value)

100 NA = Indicates % Recovery could not be calculated.

Limits are intended for water matrices only. These criteria are for guidance only when reported with soils/solids.

FORM: QCIndependent4.rpt

Page 5 of 8 SAMPLE INDEPENDENT QUALITY CONTROL REPORT Reference Number: 21-34505 Report Date: 09/28/21 True % QC QC Batch Analyte Result Value Units Method Recovery Limits* Qualifier Type Comment Method Blank 200.8_210923B2 0 ANTIMONY ND mg/L 200.8 0-0 MB 0 ARSENIC 0.00013 mg/L 200.8 0-0 MB 0 BERYLLIUM ND mg/L 200.8 0-0 MB 0 CADMIUM ND mg/L 200.8 0-0 MB 0 CHROMIUM ND mg/L 200.8 0-0 MB 0 COPPER ND mg/L 200.8 0-0 MB 0 LEAD ND mg/L 200.8 0-0 MB 0 NICKEL ND mg/L 200.8 0-0 MB 0 SELENIUM ND mg/L 200.8 0-0 MB 0 SILVER ND mg/L 200.8 0-0 MB 0 THALLIUM ND mg/L 200.8 0-0 MB 0 ZINC 0.00016 mg/L 200.8 0-0 MB 624_210914 0 1,1 - DICHLOROETHANE ND ug/L 624.1 0-0 MB 0 1,1 - DICHLOROETHYLENE ND ug/L 624.1 0-0 MB 0 1,1,1 - TRICHLOROETHANE ND ug/L 624.1 0-0 MB 0 1,1,2 - TRICHLOROETHANE ND ug/L 624.1 0-0 MB 0 1,1,2,2 - TETRACHLOROETHANE ND ug/L 624.1 0-0 MB 0 1,2 - DICHLOROETHANE ND ug/L 624.1 0-0 MB 0 1,2 - DICHLOROPROPANE ND ug/L 624.1 0-0 MB 0 1,2-DICHLOROBENZENE ND ug/L 624.1 0-0 MB 0 1,3-DICHLOROBENZENE ND ug/L 624.1 0-0 MB 0 1,4-DICHLOROBENZENE ND ug/L 624.1 0-0 MB 0 2-CHLOROETHYL VINYL ETHER ND ug/L 624.1 0-0 MB 0 BENZENE ND ug/L 624.1 0-0 MB 0 BROMODICHLOROMETHANE ND ug/L 624.1 0-0 MB 0 BROMOFORM ND ug/L 624.1 0-0 MB 0 BROMOMETHANE ND ug/L 624.1 0-0 MB 0 CARBON TETRACHLORIDE ND ug/L 624.1 0-0 MB 0 CHLOROBENZENE ND ug/L 624.1 0-0 MB 0 CHLORODIBROMOMETHANE ND ug/L 624.1 0-0 MB 0 CHLOROETHANE ND ug/L 624.1 0-0 MB 0 CHLOROFORM ND ug/L 624.1 0-0 MB 0 CHLOROMETHANE ND ug/L 624.1 0-0 MB 0 CIS - 1,3 - DICHLOROPROPENE ND ug/L 624.1 0-0 MB 0 ETHYLBENZENE ND ug/L 624.1 0-0 MB 0 METHYLENE CHLORIDE ND ug/L 624.1 0-0 MB 0 STYRENE ND ug/L 624.1 0-0 MB 0 T - 1,2 - DICHLOROETHYLENE ND ug/L 624.1 0-0 MB 0 TETRACHLOROETHYLENE ND ug/L 624.1 0-0 MB 0 TOLUENE ND ug/L 624.1 0-0 MB 0 TRANS- 1,3 - DICHLOROPROPENE ND ug/L 624.1 0-0 MB 0 TRICHLOROETHYLENE ND ug/L 624.1 0-0 MB 0 VINYL CHLORIDE ND ug/L 624.1 0-0 MB

Notation:

% Recovery = (Result of Analysis)/(True Value)

100 NA = Indicates % Recovery could not be calculated.

Limits are intended for water matrices only. These criteria are for guidance only when reported with soils/solids.

FORM: QCIndependent4.rpt

Page 6 of 8 SAMPLE INDEPENDENT QUALITY CONTROL REPORT Reference Number: 21-34505 Report Date: 09/28/21 True % QC QC Batch Analyte Result Value Units Method Recovery Limits* Qualifier Type Comment Method Blank 624_210914 0 ACROLEIN ND ug/L 624.1 0-0 MB 0 ACRYLONITRILE ND ug/L 624.1 0-0 MB 1 1,1 - DICHLOROETHANE ND ug/L 624.1 0-0 MB TB: 21-34505 1 1,1 - DICHLOROETHYLENE ND ug/L 624.1 0-0 MB TB: 21-34505 1 1,1,1 - TRICHLOROETHANE ND ug/L 624.1 0-0 MB TB: 21-34505 1 1,1,2 - TRICHLOROETHANE ND ug/L 624.1 0-0 MB TB: 21-34505 1 1,1,2,2 - TETRACHLOROETHANE ND ug/L 624.1 0-0 MB TB: 21-34505 1 1,2 - DICHLOROETHANE ND ug/L 624.1 0-0 MB TB: 21-34505 1 1,2 - DICHLOROPROPANE ND ug/L 624.1 0-0 MB TB: 21-34505 1 1,2-DICHLOROBENZENE ND ug/L 624.1 0-0 MB TB: 21-34505 1 1,3-DICHLOROBENZENE ND ug/L 624.1 0-0 MB TB: 21-34505 1 1,4-DICHLOROBENZENE ND ug/L 624.1 0-0 MB TB: 21-34505 1 2-CHLOROETHYL VINYL ETHER ND ug/L 624.1 0-0 MB TB: 21-34505 1 BENZENE ND ug/L 624.1 0-0 MB TB: 21-34505 1 BROMODICHLOROMETHANE ND ug/L 624.1 0-0 MB TB: 21-34505 1 BROMOFORM ND ug/L 624.1 0-0 MB TB: 21-34505 1 BROMOMETHANE ND ug/L 624.1 0-0 MB TB: 21-34505 1 CARBON TETRACHLORIDE ND ug/L 624.1 0-0 MB TB: 21-34505 1 CHLOROBENZENE ND ug/L 624.1 0-0 MB TB: 21-34505 1 CHLORODIBROMOMETHANE ND ug/L 624.1 0-0 MB TB: 21-34505 1 CHLOROETHANE ND ug/L 624.1 0-0 MB TB: 21-34505 1 CHLOROFORM ND ug/L 624.1 0-0 MB TB: 21-34505 1 CHLOROMETHANE ND ug/L 624.1 0-0 MB TB: 21-34505 1 CIS - 1,3 - DICHLOROPROPENE ND ug/L 624.1 0-0 MB TB: 21-34505 1 ETHYLBENZENE ND ug/L 624.1 0-0 MB TB: 21-34505 1 METHYLENE CHLORIDE ND ug/L 624.1 0-0 MB TB: 21-34505 1 STYRENE ND ug/L 624.1 0-0 MB TB: 21-34505 1 T - 1,2 - DICHLOROETHYLENE ND ug/L 624.1 0-0 MB TB: 21-34505 1 TETRACHLOROETHYLENE ND ug/L 624.1 0-0 MB TB: 21-34505 1 TOLUENE ND ug/L 624.1 0-0 MB TB: 21-34505 1 TRANS- 1,3 - DICHLOROPROPENE ND ug/L 624.1 0-0 MB TB: 21-34505 1 TRICHLOROETHYLENE ND ug/L 624.1 0-0 MB TB: 21-34505 1 VINYL CHLORIDE ND ug/L 624.1 0-0 MB TB: 21-34505 1 ACROLEIN ND ug/L 624.1 0-0 MB TB: 21-34505 1 ACRYLONITRILE ND ug/L 624.1 0-0 MB TB: 21-34505 625_210913 0 2 - FLUOROBIPHENYL (Surr) 50 % 625.1 53-140 SA MB 0 2 - FLUOROPHENOL (Surr) 37 % 625.1 29-140 MB 0 2,4,6 - TRIBROMOPHENOL (Surr) 48 % 625.1 39-140 MB 0 d5-NITROBENZENE (Surr) 56 % 625.1 50-140 MB 0 d5-PHENOL (Surr) 25 % 625.1 23-140 MB 0 p-TERPHENYL-d14 (Surr) 55 % 625.1 60-140 SA MB 0 2,4,6-TRICHLOROPHENOL ND ug/L 625.1 0-0 MB 0 2,4-DICHLOROPHENOL ND ug/L 625.1 0-0 MB

Notation:

% Recovery = (Result of Analysis)/(True Value)

100 NA = Indicates % Recovery could not be calculated.

Limits are intended for water matrices only. These criteria are for guidance only when reported with soils/solids.

FORM: QCIndependent4.rpt

Page 7 of 8 SAMPLE INDEPENDENT QUALITY CONTROL REPORT Reference Number: 21-34505 Report Date: 09/28/21 True % QC QC Batch Analyte Result Value Units Method Recovery Limits* Qualifier Type Comment Method Blank 625_210913 0 2,4-DIMETHYLPHENOL ND ug/L 625.1 0-0 MB 0 2,4-DINITROPHENOL ND ug/L 625.1 0-0 MB 0 2-CHLOROPHENOL ND ug/L 625.1 0-0 MB 0 2-NITROPHENOL ND ug/L 625.1 0-0 MB 0 4,6-DINITRO-2-METHYLPHENOL ND ug/L 625.1 0-0 MB 0 4-CHLORO-3-METHYLPHENOL ND ug/L 625.1 0-0 MB 0 4-NITROPHENOL ND ug/L 625.1 0-0 MB 0 PENTACHLOROPHENOL ND ug/L 625.1 0-0 MB 0 PHENOL ND ug/L 625.1 0-0 MB 0 1,2,4-TRICHLOROBENZENE ND ug/L 625.1 0-0 MB 0 1,2-DIPHENYLHYDRAZINE ND ug/L 625.1 0-0 MB 0 2,4-DINITROTOLUENE ND ug/L 625.1 0-0 MB 0 2,6-DINITROTOLUENE ND ug/L 625.1 0-0 MB 0 2-CHLORONAPHTHALENE ND ug/L 625.1 0-0 MB 0 3,3-DICHLOROBENZIDINE ND ug/L 625.1 0-0 MB 0 4-BROMOPHENYL PHENYL ETHER ND ug/L 625.1 0-0 MB 0 4-CHLOROPHENYL PHENYL ETHER ND ug/L 625.1 0-0 MB 0 ACENAPHTHENE ND ug/L 625.1 0-0 MB 0 ACENAPHTHYLENE ND ug/L 625.1 0-0 MB 0 ANTHRACENE ND ug/L 625.1 0-0 MB 0 BENZ[A]ANTHRACENE ND ug/L 625.1 0-0 MB 0 BENZIDINE ND ug/L 625.1 0-0 MB 0 BENZO(A)PYRENE ND ug/L 625.1 0-0 MB 0 BENZO[B]FLUORANTHENE ND ug/L 625.1 0-0 MB 0 BENZO[G,H,I]PERYLENE ND ug/L 625.1 0-0 MB 0 BENZO[K]FLUORANTHENE ND ug/L 625.1 0-0 MB 0 BENZYL BUTYL PHTHALATE ND ug/L 625.1 0-0 MB 0 BIS(2-CHLORO-1-METHYLETHYL)ETHER ND ug/L 625.1 0-0 MB 0 Bis(2-CHLOROETHOXY)METHANE ND ug/L 625.1 0-0 MB 0 BIS(2-CHLOROETHYL)ETHER ND ug/L 625.1 0-0 MB 0 CHRYSENE ND ug/L 625.1 0-0 MB 0 DI(2-ETHYLHEXYL)PHTHALATE ND ug/L 625.1 0-0 MB 0 DIBENZO[A,H]ANTHRACENE ND ug/L 625.1 0-0 MB 0 DIETHYL PHTHALATE ND ug/L 625.1 0-0 MB 0 DIMETHYL PHTHALATE ND ug/L 625.1 0-0 MB 0 DI-N-BUTYL PHTHALATE ND ug/L 625.1 0-0 MB 0 DI-N-OCTYL PHTHALATE ND ug/L 625.1 0-0 MB 0 FLUORANTHENE ND ug/L 625.1 0-0 MB 0 FLUORENE ND ug/L 625.1 0-0 MB 0 HEXACHLOROBENZENE ND ug/L 625.1 0-0 MB 0 HEXACHLOROBUTADIENE ND ug/L 625.1 0-0 MB 0 HEXACHLOROCYCLOPENTADIENE ND ug/L 625.1 0-0 MB 0 HEXACHLOROETHANE ND ug/L 625.1 0-0 MB

Notation:

% Recovery = (Result of Analysis)/(True Value)

100 NA = Indicates % Recovery could not be calculated.

Limits are intended for water matrices only. These criteria are for guidance only when reported with soils/solids.

FORM: QCIndependent4.rpt

Page 8 of 8 SAMPLE INDEPENDENT QUALITY CONTROL REPORT Reference Number: 21-34505 Report Date: 09/28/21 True % QC QC Batch Analyte Result Value Units Method Recovery Limits* Qualifier Type Comment Method Blank 625_210913 0 INDENO[1,2,3,C,D]PYRENE ND ug/L 625.1 0-0 MB 0 ISOPHORONE ND ug/L 625.1 0-0 MB 0 NAPHTHALENE ND ug/L 625.1 0-0 MB 0 NITROBENZENE ND ug/L 625.1 0-0 MB 0 N-NITROSODIMETHYLAMINE ND ug/L 625.1 0-0 MB 0 N-NITROSODI-N-PROPYLAMINE ND ug/L 625.1 0-0 MB 0 N-NITROSODIPHENYLAMINE ND ug/L 625.1 0-0 MB 0 PHENANTHRENE ND ug/L 625.1 0-0 MB 0 PYRENE ND ug/L 625.1 0-0 MB 0 3-METHYL CHOLANTHRENE ND ug/L 625.1 0-0 MB 0 BENZO(J)FLUORANTHENE ND ug/L 625.1 0-0 MB 0 BENZO(R,S,T)PENTAPHENE ND ug/L 625.1 0-0 MB 0 DIBENZO(A,E)PYRENE ND ug/L 625.1 0-0 MB 0 DIBENZO(A,H)ACRIDINE ND ug/L 625.1 0-0 MB 0 DIBENZO(A,H)PYRENE ND ug/L 625.1 0-0 MB 0 DIBENZO(A,J)ACRIDINE ND ug/L 625.1 0-0 MB 0 PERYLENE ND ug/L 625.1 0-0 MB Quality Control Sample 200.8_210923B2 0 ANTIMONY 0.0386 0.04 mg/L 200.8 97 90-110 QCS 0 ARSENIC 0.0408 0.04 mg/L 200.8 102 90-110 QCS 0 BERYLLIUM 0.0423 0.04 mg/L 200.8 106 90-110 QCS 0 CADMIUM 0.0437 0.04 mg/L 200.8 109 90-110 QCS 0 CHROMIUM 0.0431 0.04 mg/L 200.8 108 90-110 QCS 0 COPPER 0.0426 0.04 mg/L 200.8 107 90-110 QCS 0 LEAD 0.0427 0.04 mg/L 200.8 107 90-110 QCS 0 NICKEL 0.0437 0.04 mg/L 200.8 109 90-110 QCS 0 SELENIUM 0.0408 0.04 mg/L 200.8 102 90-110 QCS 0 SILVER 0.0195 0.02 mg/L 200.8 98 90-110 QCS 0 THALLIUM 0.0411 0.04 mg/L 200.8 103 90-110 QCS 0 ZINC 0.0426 0.04 mg/L 200.8 107 90-110 QCS 245.1_210917 0 MERCURY 0.00249 0.00248 mg/L 245.1 100 90-110 QCS

Notation:

% Recovery = (Result of Analysis)/(True Value)

100 NA = Indicates % Recovery could not be calculated.

Limits are intended for water matrices only. These criteria are for guidance only when reported with soils/solids.

FORM: QCIndependent4.rpt

,c Reference Number: 21-34505 Report Date: 9/28/2021

......_ ..** l(

ANALYTICAL Page 1 of 6 SAMPLE DEPENDENT QUALITY CONTROL REPORT Duplicate, Matrix Spike/Matrix Spike Duplicate and Confirmation Result Report Duplicate Duplicate QC Batch Sample Analyte Result Result Units %RPD Limits Qualifier Type Comments 200.8_210923B2 7440-36-0 66389 ANTIMONY 0.0012 0.0012 mg/L 0.0 0-20 DUP 7440-38-2 66389 ARSENIC 0.0056 0.0053 mg/L 5.5 0-20 DUP 7440-41-7 66389 BERYLLIUM ND ND mg/L NA 0-20 DUP 7440-43-9 66389 CADMIUM ND ND mg/L NA 0-20 DUP 7440-47-3 66389 CHROMIUM 0.0028 0.0031 mg/L 10.2 0-20 DUP 7440-50-8 66389 COPPER 0.0145 0.0140 mg/L 3.5 0-20 DUP 7439-92-1 66389 LEAD 0.00031 0.00031 mg/L 0.0 0-20 DUP 7440-02-0 66389 NICKEL 0.0104 0.0108 mg/L 3.8 0-20 DUP 7782-49-2 66389 SELENIUM 0.0027 0.0024 mg/L 11.8 0-20 DUP 7440-22-4 66389 SILVER ND ND mg/L NA 0-20 DUP 7440-28-0 66389 THALLIUM ND ND mg/L NA 0-20 DUP 7440-66-6 66389 ZINC 0.0212 0.0210 mg/L 0.9 0-20 DUP 7440-50-8 66697 COPPER 284 288 ug/L 1.4 0-20 DUP 7440-02-0 66697 NICKEL 27.1 27.8 ug/L 2.6 0-20 DUP 7440-66-6 66697 ZINC 855 867 ug/L 1.4 0-20 DUP 7440-50-8 67388 COPPER 0.0069 0.0069 mg/L 0.0 0-20 DUP 7440-66-6 67388 ZINC 0.0663 0.0662 mg/L 0.2 0-20 DUP 625_210913 321-60-8 66395 2 - FLUOROBIPHENYL (Surr) 72 56 % 25.0 0-40 DUP 1718-51-0 66395 p-TERPHENYL-d14 (Surr) 67 59 SA % 12.7 0-40 DUP 56-49-5 66395 3-METHYL CHOLANTHRENE ND ND ug/L NA 0-40 DUP 205-82-3 66395 BENZO(J)FLUORANTHENE ND ND ug/L NA 0-40 DUP 189-55-9 66395 BENZO(R,S,T)PENTAPHENE ND ND ug/L NA 0-40 DUP 192-65-4 66395 DIBENZO(A,E)PYRENE ND ND ug/L NA 0-40 DUP 226-36-8 66395 DIBENZO(A,H)ACRIDINE ND ND ug/L NA 0-40 DUP 189-64-0 66395 DIBENZO(A,H)PYRENE ND ND ug/L NA 0-40 DUP 224-42-0 66395 DIBENZO(A,J)ACRIDINE ND ND ug/L NA 0-40 DUP

%RPD = Relative Percent Difference NA = Indicates %RPD could not be calculated Matrix Spike (MS)/Matrix Spike Duplicate (MSD) analyses are used to determine the accuracy (MS) and precision (MSD) of a analytical method in a given sample matrix. Therefore, the usefulness of this report is limited to samples of similar matrices analyzed in the same analytical batch.

Only Duplicate sample with detections are listed in this report Limits are intended for water matrices only. These criteria are for guidance only when reported with soils/solids.

FORM: QC Dependent.rpt

Page 2 of 6 Reference Number: 21-34505 Report Date: 9/28/2021 Duplicate Duplicate QC Batch Sample Analyte Result Result Units %RPD Limits Qualifier Type Comments 198-55-0 66395 PERYLENE ND ND ug/L NA 0-40 DUP

%RPD = Relative Percent Difference NA = Indicates %RPD could not be calculated Matrix Spike (MS)/Matrix Spike Duplicate (MSD) analyses are used to determine the accuracy (MS) and precision (MSD) of a analytical method in a given sample matrix. Therefore, the usefulness of this report is limited to samples of similar matrices analyzed in the same analytical batch.

Only Duplicate sample with detections are listed in this report Limits are intended for water matrices only. These criteria are for guidance only when reported with soils/solids.

FORM: QC Dependent.rpt

Page 3 of 6 Reference Number: 21-34505 Report Date: 9/28/2021 Laboratory Fortified Matrix (MS)

Duplicate Spike Spike Percent Recovery QC Batch/CAS Sample Analyte Result Result Result Conc Units MS MSD Limits* %RPD Limits* Qualifier Type Comments 200.8_210923B2 7440-36-0 66389 ANTIMONY 0.0012 0.0121 0.0125 mg/L 87 70-130 NA 0-20 LFM 7440-38-2 66389 ARSENIC 0.0056 0.0179 0.0125 mg/L 98 70-130 NA 0-20 LFM 7440-41-7 66389 BERYLLIUM ND 0.0128 0.0125 mg/L 102 70-130 NA 0-20 LFM 7440-43-9 66389 CADMIUM ND 0.0130 0.0125 mg/L 104 70-130 NA 0-20 LFM 7440-47-3 66389 CHROMIUM 0.0028 0.0143 0.0125 mg/L 92 70-130 NA 0-20 LFM 7440-50-8 66389 COPPER 0.0145 0.0255 0.0125 mg/L 88 70-130 NA 0-20 LFM 7439-92-1 66389 LEAD 0.00031 0.0124 0.0125 mg/L 97 70-130 NA 0-20 LFM 7440-02-0 66389 NICKEL 0.0104 0.0221 0.0125 mg/L 94 70-130 NA 0-20 LFM 7782-49-2 66389 SELENIUM 0.0027 0.0144 0.0125 mg/L 94 70-130 NA 0-20 LFM 7440-22-4 66389 SILVER ND 0.0046 0.00625 mg/L 74 70-130 NA 0-20 LFM 7440-28-0 66389 THALLIUM ND 0.0120 0.0125 mg/L 96 70-130 NA 0-20 LFM 7440-66-6 66389 ZINC 0.0212 0.0347 0.0125 mg/L 108 70-130 NA 0-20 LFM 7440-50-8 66697 COPPER 284 314 12.5 ug/L 240 70-130 NA 0-20 IS LFM 7440-02-0 66697 NICKEL 27.1 40.8 12.5 ug/L 110 70-130 NA 0-20 LFM 7440-66-6 66697 ZINC 855 909 12.5 ug/L 432 70-130 NA 0-20 IS LFM 7440-50-8 67388 COPPER 0.0069 0.0201 0.0125 mg/L 106 70-130 NA 0-20 LFM 7440-66-6 67388 ZINC 0.0663 0.0808 0.0125 mg/L 116 70-130 NA 0-20 LFM 245.1_210917 7439-97-6 64721 MERCURY ND 0.00160 0.00159 0.00167 mg/L 96 95 70-130 0.6 0-20 LFM 624_210914 75-34-3 66390 1,1 - DICHLOROETHANE ND 4.0 4.1 4 ug/L 100 103 59-155 2.5 0-40 LFM 75-35-4 66390 1,1 - DICHLOROETHYLENE ND 3.9 4.0 4 ug/L 98 100 1-234 2.5 0-32 LFM 71-55-6 66390 1,1,1 - TRICHLOROETHANE ND 3.9 4.1 4 ug/L 98 103 52-162 5.0 0-36 LFM 79-00-5 66390 1,1,2 - TRICHLOROETHANE ND 4.2 4.5 4 ug/L 105 113 52-150 6.9 0-45 LFM 79-34-5 66390 1,1,2,2 - TETRACHLOROETHANE ND 4.1 4.4 4 ug/L 103 110 46-157 7.1 0-61 LFM 107-06-2 66390 1,2 - DICHLOROETHANE ND 4.3 4.3 4 ug/L 108 108 49-155 0.0 0-49 LFM 78-87-5 66390 1,2 - DICHLOROPROPANE ND 4.0 4.2 4 ug/L 100 105 1-210 4.9 0-55 LFM 95-50-1 66390 1,2-DICHLOROBENZENE ND 4.0 4.2 4 ug/L 100 105 18-190 4.9 0-57 LFM 541-73-1 66390 1,3-DICHLOROBENZENE ND 3.8 4.1 4 ug/L 95 103 59-156 7.6 0-43 LFM 106-46-7 66390 1,4-DICHLOROBENZENE ND 3.8 4.0 4 ug/L 95 100 18-190 5.1 0-57 LFM 110-75-8 66390 2-CHLOROETHYL VINYL ETHER ND 9.9 10.2 10 ug/L 99 102 2-305 3.0 0-20 LFM 107-02-8 66390 ACROLEIN ND 5.4 4.4 10 ug/L 54 44 40-160 20.4 0-60 M2 LFM 107-13-1 66390 ACRYLONITRILE ND 11.2 11.8 10 ug/L 112 118 40-160 5.2 0-60 LFM 71-43-2 66390 BENZENE ND 3.9 4.1 4 ug/L 98 103 37-151 5.0 0-61 LFM 75-27-4 66390 BROMODICHLOROMETHANE ND 4.2 4.3 4 ug/L 105 108 35-155 2.4 0-56 LFM

%RPD = Relative Percent Difference NA = Indicates %RPD could not be calculated Matrix Spike (MS)/Matrix Spike Duplicate (MSD) analyses are used to determine the accuracy (MS) and precision (MSD) of a analytical method in a given sample matrix. Therefore, the usefulness of this report is limited to samples of similar matrices analyzed in the same analytical batch.

Only Duplicate sample with detections are listed in this report Limits are intended for water matrices only. These criteria are for guidance only when reported with soils/solids.

FORM: QC Dependent.rpt

Page 4 of 6 Reference Number: 21-34505 Report Date: 9/28/2021 Laboratory Fortified Matrix (MS)

Duplicate Spike Spike Percent Recovery QC Batch/CAS Sample Analyte Result Result Result Conc Units MS MSD Limits* %RPD Limits* Qualifier Type Comments 75-25-2 66390 BROMOFORM ND 3.8 3.9 4 ug/L 95 98 45-169 2.6 0-42 LFM 74-83-9 66390 BROMOMETHANE ND 3.0 3.2 4 ug/L 75 80 1-242 6.5 0-61 LFM 56-23-5 66390 CARBON TETRACHLORIDE ND 4.0 4.1 4 ug/L 100 103 70-140 2.5 0-41 LFM 108-90-7 66390 CHLOROBENZENE ND 4.0 4.2 4 ug/L 100 105 37-160 4.9 0-53 LFM 124-48-1 66390 CHLORODIBROMOMETHANE ND 4.3 4.4 4 ug/L 108 110 53-149 2.3 0-50 LFM 75-00-3 66390 CHLOROETHANE ND 3.7 3.8 4 ug/L 93 95 14-230 2.7 0-78 LFM 67-66-3 66390 CHLOROFORM 0.7 6.2 6.4 4 ug/L 138 143 51-138 3.6 0-54 LFM 74-87-3 66390 CHLOROMETHANE ND 3.6 3.9 4 ug/L 90 98 1-273 8.0 0-60 LFM 10061-01-5 66390 CIS - 1,3 - DICHLOROPROPENE ND 4.1 4.3 4 ug/L 103 108 1-227 4.8 0-58 LFM 100-41-4 66390 ETHYLBENZENE ND 3.4 3.7 4 ug/L 85 93 37-162 8.5 0-63 LFM 75-09-2 66390 METHYLENE CHLORIDE ND 4.0 4.2 4 ug/L 100 105 1-221 4.9 0-28 LFM 100-42-5 66390 STYRENE ND 3.6 3.9 4 ug/L 90 98 70-130 8.0 0-20 LFM 156-60-5 66390 T - 1,2 - DICHLOROETHYLENE ND 3.7 3.9 4 ug/L 93 98 54-156 5.3 0-45 LFM 127-18-4 66390 TETRACHLOROETHYLENE ND 4.0 4.2 4 ug/L 100 105 64-148 4.9 0-39 LFM 108-88-3 66390 TOLUENE ND 3.9 4.1 4 ug/L 98 103 47-150 5.0 0-41 LFM 10061-02-6 66390 TRANS- 1,3 - DICHLOROPROPENE ND 4.2 4.4 4 ug/L 105 110 17-183 4.7 0-86 LFM 79-01-6 66390 TRICHLOROETHYLENE ND 3.9 4.0 4 ug/L 98 100 70-157 2.5 0-48 LFM 75-01-4 66390 VINYL CHLORIDE ND 3.6 3.8 4 ug/L 90 95 1-251 5.4 0-66 LFM 625_210913 321-60-8 66389 2 - FLUOROBIPHENYL (Surr) 60 73 % NA 53-140 NA 0-20 LFM 367-12-4 66389 2 - FLUOROPHENOL (Surr) 12 SA 11 SA % NA 29-140 NA 0-20 LFM 118-79-6 66389 2,4,6 - TRIBROMOPHENOL (Surr) 21 SA 19 SA % NA 39-140 NA 0-20 LFM 98-95-3 66389 d5-NITROBENZENE (Surr) 64 78 % NA 50-140 NA 0-20 LFM 108-95-2 66389 d5-PHENOL (Surr) 14 SA 16 SA % NA 23-140 NA 0-20 LFM 1718-51-0 66389 p-TERPHENYL-d14 (Surr) 56 SA 48 SA % NA 60-140 NA 0-20 LFM 120-82-1 66389 1,2,4-TRICHLOROBENZENE ND 7.7 10 ug/L 77 NA 44-142 NA 0-50 LFM 122-66-7 66389 1,2-DIPHENYLHYDRAZINE ND 7.8 10 ug/L 78 NA 67-127 NA 0-40 LFM 88-06-2 66389 2,4,6-TRICHLOROPHENOL ND 1.8 10 ug/L 18 NA 37-144 NA 0-58 M2 LFM 120-83-2 66389 2,4-DICHLOROPHENOL ND 2.6 10 ug/L 26 NA 39-135 NA 0-50 M2 LFM 105-67-9 66389 2,4-DIMETHYLPHENOL ND 8.0 10 ug/L 80 NA 32-120 NA 0-58 LFM 51-28-5 66389 2,4-DINITROPHENOL ND 1.5 10 ug/L 15 NA 1-191 NA 0-132 LFM 121-14-2 66389 2,4-DINITROTOLUENE ND 7.6 10 ug/L 76 NA 39-139 NA 0-42 LFM 606-20-2 66389 2,6-DINITROTOLUENE ND 8.3 10 ug/L 83 NA 50-158 NA 0-48 LFM 91-58-7 66389 2-CHLORONAPHTHALENE ND 7.7 10 ug/L 77 NA 60-120 NA 0-24 LFM 95-57-8 66389 2-CHLOROPHENOL ND 2.2 10 ug/L 22 NA 23-134 NA 0-61 M2 LFM 88-75-5 66389 2-NITROPHENOL ND 2.7 10 ug/L 27 NA 29-182 NA 0-55 M2 LFM

%RPD = Relative Percent Difference NA = Indicates %RPD could not be calculated Matrix Spike (MS)/Matrix Spike Duplicate (MSD) analyses are used to determine the accuracy (MS) and precision (MSD) of a analytical method in a given sample matrix. Therefore, the usefulness of this report is limited to samples of similar matrices analyzed in the same analytical batch.

Only Duplicate sample with detections are listed in this report Limits are intended for water matrices only. These criteria are for guidance only when reported with soils/solids.

FORM: QC Dependent.rpt

Page 5 of 6 Reference Number: 21-34505 Report Date: 9/28/2021 Laboratory Fortified Matrix (MS)

Duplicate Spike Spike Percent Recovery QC Batch/CAS Sample Analyte Result Result Result Conc Units MS MSD Limits* %RPD Limits* Qualifier Type Comments 91-94-1 66389 3,3-DICHLOROBENZIDINE ND 0.8 1 ug/L 80 NA 1-262 NA 0-108 LFM 56-49-5 66389 3-METHYL CHOLANTHRENE ND 2.7 10 ug/L 27 NA 5-125 NA 0-40 LFM 534-52-1 66389 4,6-DINITRO-2-METHYLPHENOL ND 1.6 10 ug/L 16 NA 1-181 NA 0-203 LFM 101-55-3 66389 4-BROMOPHENYL PHENYL ETHER ND 8.0 10 ug/L 80 NA 53-127 NA 0-43 LFM 59-50-7 66389 4-CHLORO-3-METHYLPHENOL ND 5.6 10 ug/L 56 NA 22-147 NA 0-73 LFM 7005-72-3 66389 4-CHLOROPHENYL PHENYL ETHER ND 7.9 10 ug/L 79 NA 25-158 NA 0-61 LFM 100-02-7 66389 4-NITROPHENOL ND 1.4 10 ug/L 14 NA 1-132 NA 0-131 LFM 83-32-9 66389 ACENAPHTHENE ND 7.7 10 ug/L 77 NA 47-145 NA 0-48 LFM 208-96-8 66389 ACENAPHTHYLENE ND 7.7 10 ug/L 77 NA 33-145 NA 0-74 LFM 120-12-7 66389 ANTHRACENE ND 7.9 10 ug/L 79 NA 27-133 NA 0-66 LFM 56-55-3 66389 BENZ[A]ANTHRACENE ND 6.5 10 ug/L 65 NA 33-143 NA 0-53 LFM 92-87-5 66389 BENZIDINE ND 4.0 J 25 ug/L 16 NA 1-59 NA 0-40 LFM 50-32-8 66389 BENZO(A)PYRENE ND 4.4 10 ug/L 44 NA 17-163 NA 0-72 LFM 205-82-3 66389 BENZO(J)FLUORANTHENE ND 9.1 20 ug/L 46 NA 21-123 NA 0-40 LFM 189-55-9 66389 BENZO(R,S,T)PENTAPHENE ND 1.1 10 ug/L 11 NA 1-156 NA 0-40 LFM 205-99-2 66389 BENZO[B]FLUORANTHENE ND 9.1 20 ug/L 46 NA 24-159 NA 0-71 LFM 191-24-2 66389 BENZO[G,H,I]PERYLENE ND 2.9 10 ug/L 29 NA 1-219 NA 0-97 LFM 207-08-9 66389 BENZO[K]FLUORANTHENE ND 4.6 10 ug/L 46 NA 11-162 NA 0-63 LFM 85-68-7 66389 BENZYL BUTYL PHTHALATE ND 6.9 10 ug/L 69 NA 1-152 NA 0-60 LFM 108-60-1 66389 BIS(2-CHLORO-1-METHYLETHYL)ETHER ND 8.1 10 ug/L 81 NA 36-166 NA 0-76 LFM 111-91-1 66389 Bis(2-CHLOROETHOXY)METHANE ND 8.5 10 ug/L 85 NA 33-184 NA 0-54 LFM 111-44-4 66389 BIS(2-CHLOROETHYL)ETHER ND 8.0 10 ug/L 80 NA 12-158 NA 0-108 LFM 218-01-9 66389 CHRYSENE ND 6.5 10 ug/L 65 NA 17-168 NA 0-87 LFM 117-81-7 66389 DI(2-ETHYLHEXYL)PHTHALATE ND 2.1 10 ug/L 21 NA 8-158 NA 0-82 LFM 192-65-4 66389 DIBENZO(A,E)PYRENE ND 1.3 10 ug/L 13 NA 1-154 NA 0-40 LFM 226-36-8 66389 DIBENZO(A,H)ACRIDINE ND 5.2 10 ug/L 52 NA 25-133 NA 0-40 LFM 189-64-0 66389 DIBENZO(A,H)PYRENE ND 0.8 J 10 ug/L 8 NA 4-160 NA 0-40 LFM 224-42-0 66389 DIBENZO(A,J)ACRIDINE ND 6.3 10 ug/L 63 NA 31-139 NA 0-40 LFM 53-70-3 66389 DIBENZO[A,H]ANTHRACENE ND 2.6 10 ug/L 26 NA 1-227 NA 0-126 LFM 84-66-2 66389 DIETHYL PHTHALATE ND 7.4 10 ug/L 74 NA 1-120 NA 0-100 LFM 131-11-3 66389 DIMETHYL PHTHALATE ND 6.4 10 ug/L 64 NA 1-120 NA 0-183 LFM 84-74-2 66389 DI-N-BUTYL PHTHALATE ND 7.7 10 ug/L 77 NA 1-120 NA 0-47 LFM 117-84-0 66389 DI-N-OCTYL PHTHALATE ND 1.6 10 ug/L 16 NA 4-146 NA 0-69 LFM 206-44-0 66389 FLUORANTHENE ND 7.8 10 ug/L 78 NA 26-137 NA 0-66 LFM 86-73-7 66389 FLUORENE ND 8.0 10 ug/L 80 NA 59-121 NA 0-38 LFM 118-74-1 66389 HEXACHLOROBENZENE ND 7.7 10 ug/L 77 NA 1-152 NA 0-55 LFM

%RPD = Relative Percent Difference NA = Indicates %RPD could not be calculated Matrix Spike (MS)/Matrix Spike Duplicate (MSD) analyses are used to determine the accuracy (MS) and precision (MSD) of a analytical method in a given sample matrix. Therefore, the usefulness of this report is limited to samples of similar matrices analyzed in the same analytical batch.

Only Duplicate sample with detections are listed in this report Limits are intended for water matrices only. These criteria are for guidance only when reported with soils/solids.

FORM: QC Dependent.rpt

Page 6 of 6 Reference Number: 21-34505 Report Date: 9/28/2021 Laboratory Fortified Matrix (MS)

Duplicate Spike Spike Percent Recovery QC Batch/CAS Sample Analyte Result Result Result Conc Units MS MSD Limits* %RPD Limits* Qualifier Type Comments 87-68-3 66389 HEXACHLOROBUTADIENE ND 5.9 10 ug/L 59 NA 24-120 NA 0-62 LFM 77-47-4 66389 HEXACHLOROCYCLOPENTADIENE ND 5.9 10 ug/L 59 NA 1-142 NA 0-40 LFM 67-72-1 66389 HEXACHLOROETHANE ND 6.6 10 ug/L 66 NA 40-120 NA 0-52 LFM 193-39-5 66389 INDENO[1,2,3,C,D]PYRENE ND 2.9 10 ug/L 29 NA 1-171 NA 0-99 LFM 78-59-1 66389 ISOPHORONE ND 8.6 10 ug/L 86 NA 21-196 NA 0-93 LFM 91-20-3 66389 NAPHTHALENE ND 7.5 10 ug/L 75 NA 21-133 NA 0-65 LFM 98-95-3 66389 NITROBENZENE ND 8.4 10 ug/L 84 NA 35-180 NA 0-62 LFM 62-75-9 66389 N-NITROSODIMETHYLAMINE ND 5.5 10 ug/L 55 NA 19-109 NA 0-40 LFM 621-64-7 66389 N-NITROSODI-N-PROPYLAMINE ND 8.4 10 ug/L 84 NA 1-230 NA 0-87 LFM 86-30-6 66389 N-NITROSODIPHENYLAMINE ND 8.2 10 ug/L 82 NA 61-139 NA 0-40 LFM 87-86-5 66389 PENTACHLOROPHENOL ND 1.6 10 ug/L 16 NA 14-176 NA 0-86 LFM 198-55-0 66389 PERYLENE ND 4.5 10 ug/L 45 NA 18-114 NA 0-40 LFM 85-01-8 66389 PHENANTHRENE ND 7.8 10 ug/L 78 NA 54-120 NA 0-39 LFM 108-95-2 66389 PHENOL ND 1.9 10 ug/L 19 NA 5-120 NA 0-64 LFM 129-00-0 66389 PYRENE ND 7.7 10 ug/L 77 NA 52-120 NA 0-49 LFM

%RPD = Relative Percent Difference NA = Indicates %RPD could not be calculated Matrix Spike (MS)/Matrix Spike Duplicate (MSD) analyses are used to determine the accuracy (MS) and precision (MSD) of a analytical method in a given sample matrix. Therefore, the usefulness of this report is limited to samples of similar matrices analyzed in the same analytical batch.

Only Duplicate sample with detections are listed in this report Limits are intended for water matrices only. These criteria are for guidance only when reported with soils/solids.

FORM: QC Dependent.rpt

Page 1 of 1 QUALITY CONTROL REPORT SURROGATE REPORT Reference Number: 21-34505 Report Date: 09/28/21 Lab No Analyte Result Qualifier Units Method Limit 625_210913 66389 2,4,6 - TRIBROMOPHENOL (Surr) 21 SA % 625.1 2 - FLUOROBIPHENYL (Surr) 60 %

2 - FLUOROPHENOL (Surr) 12 SA %

d5-PHENOL (Surr) 14 SA %

p-TERPHENYL-d14 (Surr) 56 SA %

d5-NITROBENZENE (Surr) 64 %

624_210914 66390 1,2 - DICHLOROETHANE-d4 (SURR) 111 % 624.1 Acceptance Limit 70-130%

4-BROMOFLUOROBENZENE (Surr) 82 % Acceptance Limit 70-130%

d8-TOLUENE (Surr) 100 % Acceptance Limit 70-130%

d8-TOLUENE (SURR) 100 % 624(pH4)

Notation:

Page 1 of 1 Qualifier Definitions Reference Number: 21-34505 Report Date: 09/28/21 Qualifier Definition IS The ratio of the spike concentration to sample background was too low to meet performance criteria J The analyte was positively identified; the associated numerical value is the approximate concentration of the analyte in the sample.

M2 Matrix spike recovery was low; the associated blank spike recovery was acceptable.

SA Surrogate recovery outside method acceptance limits. CCV target compound recovery meets method requirements.

Note: Some qualifier definitions found on this page may pertain to results or QC data which are not printed with this report.

FORM: QualifierDefs

Page \ of \

Chain of Custod / Anal sis Re uest 21-34505

_R_ep_o_rt_to_:_ _E_n_ergy Northw_e_s t_ _ _ _ __

Address: 350 Hills St Bill to:

Lab Ref#

Energy Northw~~~t - - - - - - - - - - 1 Address: 350 Hills St #107 F\F\'.'IP..Q

F\4'.:IQC'l Client Code: ENE01 ANALYTI CA L E

City: Richland St: WA Zi : 99354 Attn: Jane LePage Attn: P.O.#: D Safe Drinking Water Act Microliology(888-725-1212) 005 W. 0-cra-d Dr. Sute4 Belirghan WA 98225 Patland Lab (50~2-711121 Phone: Phone: 5 0 '1' *3'9t,. ~oS1? (;a Clean Water Act 91SJ SWPlcmerCt Slite WWIS01Vlle, OR 97070 1--- - - - - - - - - - - - - - - -- -+-- ----- - Corvalfis La> (541-753-49461 Email: jtlepage@energy-northwest.com Email: ea_ ' .>t\ ~ S Q -ln<.r

t1ur~...:1c.st . to!W\ RCRA / CERCLA 1100 NE Ci"cle 81\d, Sle 130. Cavalls, OR 9733J Bend Lab (541-639-8425)

Pro*ect Priorit Pollutants Card#: Expires / other al332 8rpre Ave Ste F4, BErn. OR97703

1. Use one line per sample Location . Analyses Requested 2 Be spec,"f1c .1n ana Iys1s

3. List each metal individually

. reques t s. - -----

Turn Around Time Reguired

'ii, ~ 1111111111111111111111111111111111

4. Check off analyses to be performed for each l '"fJ !s tandard 0 Q)

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CO049508 sample Location.

L Half-time (50% surcharge)

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5. Enter number of containers. :.::: 0

6. (NEW) Report to_ MDL or_ PQL (NEW) O auickest (100% surcharge) Phone Call Req.

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...,Are there known hazardous or dangerous wastes in these samples? YES/ NO If YES, indicate type on reverse of this form; samples may be returned to you. /(p Total Containers Sampled ~ . 1~ Phone: 5'CfJ * '31 1 * ~ I FAX: Email: ti f J~ p a._1e..Q., -ent..rq '1 ~r, 0 .,--fh \AXJ J-

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surface water ST - storm water WW - waste water SL ': salt water S- soil OL-oif Other:

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- Relinquished by Date Time I Received by Date Time Custody seals intact C1 1-1 ___.

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' Samples received intact Chain of custody & labels agree Lr LJ FORM: COC Rev 2-2-2 1

Page 41 of 46 Permit No. WA002515-l Pollutant & CAS No. (if Recommended Detection Quantitation available) Analytical Protocol (DL) 1 µg/L Level (QL)2 µg/L unless unless specified specified Tin Total (7440-3 1-5) 200.8 0.3 1.5 Tit nium, Total (7440-32-6) 200.8 0.5 2.5 PRIORITY POLLUTANTS ollutant & CAS No. (if Recommended Detection Quantitation available) Analytical Protocol (DL) 1 µglL Level (QL) 2 µg/L unless specified unless specified METALS, CYANIDE & TOTAL PHENOLS An imony, Total (7440-36-0) 200.8 0.3 1.0 Ar enic, Total (7440-38-2) 200.8 0.1 0.5 Be llium,Total(7440-41-7) 200.8 0.1 0.5 mium, Total 7440-43-9) 200.8 0.05 0.25 fTTfiEm e~ issolved- SM9500=Cr EC 0.3 1.2

( 18540-29-9) mium, Total (7440-47-3) 200.8 0.2 1.0 per, Total (7440-50-8) 200.8 0.4 2.0 Le d, Total (7439-92-1) 200.8 0.1 0.5 Me cury, Total (7439-97-6) 1631E 0.0002 0.0005 Nie el, Total (7440-02-0) 200.8 0.1 0.5 Sel nium, Total (7782-49-2) 200.8 1.0 1.0 Sil er, Total (7440-22-4) 200.8 0.04 0.2 Th Ilium, Total (7440-28-0) 200.8 0.09 0.36 Zin , Total (7440-66-6) 200.8 0.5 2.5 otal 57-12-5) 335.4 5 10 Cy nide, Weak Acid 1s e ...S 500-CN I 5 10 Cy nide, Free ~ e able to SM4500-C 10 Chi l ri nat.!9A'{A"vailable Cyanide)

Ph .AOf("Total EPA 420.1 ollutant & CAS No. (if Recommended Detection Quantitation available) Analytical Protocol (DL) 1 µglL Level (QL) 2 µg/L unless specified unless specified

~l-J" 2- hlorophenol (95-57-8)

ACID COMPOUNDS 625 1.0 2.0 2,4 Dichlorophenol (120-83-2) 625 0.5 1.0 2,4 Dimethyl phenol ( 105-67-9) 625 0.5 1.0 4,6 dinitro-o-cresol (534-52-1) 625/16258 1.0 2.0 (2-m thyl-4,6,-dinitrophenol) 2,4 dinitrophenol (51-28-5) 625 1.0 2.0 2- itrophenol (88-75-5) 625 0.5 1.0 4-n trophenol ( 100-02-7) 625 0.5 1.0 Pa chlorometa cresol (59-50-7) 625 1.0 2.0 (4-c loro-3-methylphenol)

Pe tachlorophenol (87-86-5) 625 0.5 1.0 Ph nol ( 108-95-2) 625 2.0 4.0

Page 43 of 46 Permit No. WA002515-l Detection (DL) 1 Quantitation Pollutant & CAS No. (if Recommended µg/L unless Level (QL) 2 available) Analytical Protocol specified µg/L unless specified VOLATILE COMPOUNDS Vir !YI chloride (75-0 1-4) 624/SM6200B 1.0 2.0 PRIORITY POLLUTANTS (continued)

Detection (DL)1 Quantitation Pollutant & CAS No. (if Recommended µg/L unless Level (QL) 2 available) Analytical Protocol specified µg/L unless specified BASE/NEUTRAL COMPOUNDS (compounds in bold are Ecology PBTs)

Ac enaphthene (83-32-9) 625 0.2 0.4 Ac enaohthvlene (208-96-8) 625 0.3 0.6 An hracene (120-12-7) 625 0.3 0.6 Be hzidine (92-87-5) 625 12 24 Be nzvl butyl phthalate (85-68-7) 625 0 .3 0.6 Be nzo(a)anthracene (56-55-3) 625 0.3 0.6 Be nzo(b )fluoranthene 610/625 0.8 1.6 (3,4 benzofluoranthene) (205-99-2) 7 Be r,zoU)fluoranthene (205-82-3) 625 0.5 1.0 7

Be hzo(k)fluoranthene 6 10/625 0.8 1.6 (11, 2-benzofluoranthene) (207-08-9) 7 Be r,zo( r,s, t)pentaphene 625 0.5 1.0 (1S9-55-9)

Be nzo(a)pyrene (50-32-8) 610/625 0.5 1.0 Be nzo(ah,) Perylene (1 91-24-2) 610/625 0.5 1.0 Bis 2-chloroethoxy)methane 625 5.3 21.2 (11 1-91-1 )

Bis 2-chloroethy/)ether (111 611/625 0.3 1.0 4)

Bis 2-ch/oroisopropyether 625 0.3 0.6 (39638-32-9)

Bis 2-ethy/hexy/)phthalate 625 0.1 0.5 (11r?-81-7) 4-E romophenyl phenyl ether 625 0.2 0.4 (101 3) 2-C hloronaphthalene (91-58-7) 625 0.3 0.6 4-C hlorophenyl phenyl ether 625 0 .3 0.5 (7005-72-3)

Chi ysene (2 18-01-9) 610/625 0.3 0.6 Di t enzo (a,h)acridine (226-36-8) 610M/625M 2.5 10.0 Di t enzo (a,j)acridine (224-42-0) 610M/625M 2.5 10.0 Dib~nzo(a-h)anthracene 625 0.8 1.6 (53 70-3)(1,2,5,6-dibenzanthracene)

Dib enzo(a,e)ovrene (192-65-4) 610M/625M 2 .5 10.0 Dib enzo(a,h)ovrene (189-64-0) 625M 2.5 10.0

Packing List Page 1 of 1 49508 Energy Northwest Pro ect Name: Priority Pollutants Number of Analysis Container Preservative Container Sets Sample N t Provided (624) Neutral rip Blank 40mL Vial <6C 1 1 (624) pH2 Tri Blank 40mLVial HCLACID ONLY<6C 1 1 (624) Trip Bia k 40mL Vial Ascorbic acid ONLY <4C 1 1 1631E 250ml Plastic (Clean) BrCI (A381-02) 1 1 1631E Field B ank 250ml Plastic (Clean) BrCI {A381-02) 1 1 218.6 (Cr+6) ILTERED 100ml Plastic <4 C, pH 9, Amm. Buffer 3 1 624 40mLVial Ascorbic acid ONLY <4C 3 1 624 Neutral 40mL Vial <6C 3 1 624 pH2 40mLVial HCLACID ONLY<6C 3 1 625 BNA 1LBR <4C 2 1 Buffer SmL Green cap Amm. Buffer 1 1 Field Blank W ter 1LClean H2O None 1 1 Filter 0.45 for yringe 1 1 Gloves (Clean 2 Pair) Double Ziplock bag 1 1 Gloves (Dirty, Pair) Double Ziplock bag 1 1 Plastic Pipette 1 1 Syringe 10mL 1 1 Total Metals 500mL Plastic HN03 pH<4 (In-Lab) 1 1 TRIP BLANK ( OCs) 40mL Vial SAME AS CONTAINER 1 1 UNFILTERED 18.6 (Cr+6) 250mL Plastic 1 1 FORM : Container rderPackinflist.rpt

Anatek Labs, Inc.

1282 Alturas Drive - Moscow, ID 83843 - (208) 883-2839 - Fax (208) 8829246 - email moscow@anateklabs.com 504 E Sprague Ste. D - Spokane, WA 99202 - (509) 838-3999 - fax (509) 838-4433 - email spokane@anateklabs.com Client: Energy Northwest Work Order: MBI0287 Address: 350 Hills St Suite 107 Project: 220182 Richland, WA 99354 Reported: 10/20/2021 08:23 Attn: Environmental Services Analytical Results Report Sample Location: 220182-01 (CW 24-hr composite)

Lab/Sample Number: MBI0287-01 Collect Date: 09/07/21 08:54 Date Received: 09/08/21 12:16 Collected By:

Matrix: Wastewater Metals by ICP-MS Analyte CAS Number Result Units PQL Analyzed Analyst Method Qualifier Silver 7440-22-4 ND mg/L 0.00100 9/16/21 20:48 MYM EPA 200.8 Arsenic 7440-38-2 0.00567 mg/L 0.00100 9/16/21 20:48 MYM EPA 200.8 Barium 7440-39-3 0.250 mg/L 0.00100 9/16/21 20:48 MYM EPA 200.8 Cadmium 7440-43-9 ND mg/L 0.00100 9/16/21 20:48 MYM EPA 200.8 Chromium 7440-47-3 0.00110 mg/L 0.00100 9/16/21 20:48 MYM EPA 200.8 Copper 7440-50-8 0.0110 mg/L 0.00100 9/16/21 20:48 MYM EPA 200.8 Manganese 7439-96-5 0.0364 mg/L 0.00100 9/16/21 20:48 MYM EPA 200.8 Nickel 7440-02-0 0.00276 mg/L 0.00100 9/16/21 20:48 MYM EPA 200.8 Lead 7439-92-1 ND mg/L 0.00100 9/16/21 20:48 MYM EPA 200.8 Selenium 7782-49-2 0.00178 mg/L 0.00100 9/17/21 17:11 MYM EPA 200.8 Titanium 7440-32-6 0.00938 mg/L 0.00100 10/12/21 13:52 TEC EPA 200.8 Zinc 7440-66-6 0.0201 mg/L 0.00100 9/16/21 20:48 MYM EPA 200.8 Metals by ICP Analyte CAS Number Result Units PQL Analyzed Analyst Method Qualifier Calcium 7440-70-2 177 mg/L 0.100 9/21/21 15:34 MYM EPA 200.7 Iron 7439-89-6 0.357 mg/L 0.0100 9/21/21 15:34 MYM EPA 200.7 Potassium 7440-09-7 6.77 mg/L 0.500 9/21/21 15:34 MYM EPA 200.7 Magnesium 7439-95-4 40.3 mg/L 0.100 9/21/21 15:34 MYM EPA 200.7 Sodium 7440-23-5 43.3 mg/L 0.100 9/21/21 15:34 MYM EPA 200.7 Silica (as SiO2) 40.2 mg/L 0.214 9/21/21 15:34 MYM EPA 200.7 Silicon 7440-21-3 18.8 mg/L 0.100 9/21/21 15:34 MYM EPA 200.7 This data not used for annual priority pollutant results.

Required PQL not met.

Page 1 of 12

Anatek Labs, Inc.

1282 Alturas Drive - Moscow, ID 83843 - (208) 883-2839 - Fax (208) 8829246 - email moscow@anateklabs.com 504 E Sprague Ste. D - Spokane, WA 99202 - (509) 838-3999 - fax (509) 838-4433 - email spokane@anateklabs.com Analytical Results Report (Continued)

Sample Location: 220182-02 Lab/Sample Number: MBI0287-02 Collect Date: 09/07/21 08:54 Date Received: 09/08/21 12:16 Collected By:

Matrix: Wastewater Mercury Analyte CAS Number Result Units PQL Analyzed Analyst Method Qualifier Mercury 7439-97-6 0.00407 ug/L 0.000500 9/14/21 13:14 BSM EPA 1631 E Page 2 of 12

Anatek Labs, Inc.

1282 Alturas Drive - Moscow, ID 83843 - (208) 883-2839 - Fax (208) 8829246 - email moscow@anateklabs.com 504 E Sprague Ste. D - Spokane, WA 99202 - (509) 838-3999 - fax (509) 838-4433 - email spokane@anateklabs.com Analytical Results Report (Continued)

Sample Location: 220182-05 (Field Blank Hg)

Lab/Sample Number: MBI0287-05 Collect Date: 09/07/21 08:54 Date Received: 09/08/21 12:16 Collected By:

Matrix: Wastewater Mercury Analyte CAS Number Result Units PQL Analyzed Analyst Method Qualifier Mercury 7439-97-6 ND ug/L 0.000500 9/14/21 13:38 BSM EPA 1631 E U

[TOC_1]Quality Assurance Results[TOC]

Authorized Signature, Justin Doty For Todd Taruscio, Laboratory Manager M3 Spike recovery value is unusable. Analyte concentration disproportionate to the spike level. Blank spike recovery acceptable.

U Compound was analyzed for but not detected PQL Practical Quantitation Limit ND Not Detected MCL EPA's Maximum Contaminant Level Dry Sample results reported on a dry weight basis

Not a state-certified analyte RPD Relative Percent Difference

%REC Percent Recovery Source Sample that was spiked or duplicated.

This report shall not be reproduced except in full, without the written approval of the laboratory The results reported related only to the samples indicated.

Page 5 of 12

Anatek Labs, Inc.

1282 Alturas Drive - Moscow, ID 83843 - (208) 883-2839 - Fax (208) 8829246 - email moscow@anateklabs.com 504 E Sprague Ste. D - Spokane, WA 99202 - (509) 838-3999 - fax (509) 838-4433 - email spokane@anateklabs.com Quality Control Data Metals by ICP-MS Reporting Spike Source %REC RPD Analyte Result Qual Limit Units Level Result %REC Limits RPD Limit Batch: BBI0507 - ICP-MS Blank (BBI0507-BLK1) Prepared & Analyzed: 9/16/2021 Copper ND 0.00100 mg/L Silver ND 0.000200 mg/L Zinc ND 0.00100 mg/L Arsenic ND 0.00100 mg/L Lead ND 0.000500 mg/L Barium ND 0.00100 mg/L Nickel ND 0.000500 mg/L Cadmium ND 0.000250 mg/L Manganese ND 0.00100 mg/L Chromium ND U 0.00100 mg/L LCS (BBI0507-BS1) Prepared & Analyzed: 9/16/2021 Zinc 0.0481 0.00100 mg/L 0.0500 96.2 85-115 Lead 0.0475 0.000500 mg/L 0.0500 95.0 85-115 Manganese 0.0513 0.00100 mg/L 0.0500 103 85-115 Copper 0.0481 0.00100 mg/L 0.0500 96.2 85-115 Chromium 0.0476 0.00100 mg/L 0.0500 95.2 85-115 Nickel 0.0459 0.000500 mg/L 0.0500 91.8 85-115 Cadmium 0.0516 0.000250 mg/L 0.0500 103 85-115 Barium 0.0531 0.00100 mg/L 0.0500 106 85-115 Arsenic 0.0492 0.00100 mg/L 0.0500 98.3 85-115 Silver 0.0492 0.000200 mg/L 0.0500 98.5 85-115 Matrix Spike (BBI0507-MS1) Source: MBI0166-01 Prepared & Analyzed: 9/16/2021 Zinc 0.0631 0.00100 mg/L 0.0500 0.0112 104 70-130 Cadmium 0.0534 0.000250 mg/L 0.0500 ND 107 70-130 Copper 0.0650 0.00100 mg/L 0.0500 0.0133 103 70-130 Barium 0.0604 0.00100 mg/L 0.0500 0.00648 108 70-130 Manganese 0.0589 0.00100 mg/L 0.0500 0.00666 105 70-130 Nickel 0.0491 0.000500 mg/L 0.0500 0.000869 96.4 70-130 Arsenic 0.0521 0.00100 mg/L 0.0500 0.000423 103 70-130 Lead 0.0492 0.000500 mg/L 0.0500 0.000322 97.8 70-130 Silver 0.0534 0.000200 mg/L 0.0500 ND 107 70-130 Chromium 0.0519 0.00100 mg/L 0.0500 ND 104 70-130 Page 6 of 12

Anatek Labs, Inc.

1282 Alturas Drive - Moscow, ID 83843 - (208) 883-2839 - Fax (208) 8829246 - email moscow@anateklabs.com 504 E Sprague Ste. D - Spokane, WA 99202 - (509) 838-3999 - fax (509) 838-4433 - email spokane@anateklabs.com Quality Control Data (Continued)

Metals by ICP-MS (Continued)

Reporting Spike Source %REC RPD Analyte Result Qual Limit Units Level Result %REC Limits RPD Limit Batch: BBI0507 - ICP-MS (Continued)

Matrix Spike (BBI0507-MS2) Source: MBI0317-01 Prepared & Analyzed: 9/16/2021 Cadmium 0.0500 0.000250 mg/L 0.0500 ND 100 70-130 Silver 0.0501 0.000200 mg/L 0.0500 ND 100 70-130 Manganese 0.0581 0.00100 mg/L 0.0500 0.00626 104 70-130 Zinc 0.0726 0.00100 mg/L 0.0500 0.0253 94.6 70-130 Arsenic 0.0528 0.00100 mg/L 0.0500 0.000554 104 70-130 Copper 0.0496 0.00100 mg/L 0.0500 0.00183 95.6 70-130 Nickel 0.0494 0.000500 mg/L 0.0500 0.00155 95.6 70-130 Barium 0.0566 0.00100 mg/L 0.0500 0.00553 102 70-130 Chromium 0.0482 0.00100 mg/L 0.0500 ND 96.4 70-130 Lead 0.0475 0.000500 mg/L 0.0500 0.000179 94.6 70-130 Matrix Spike Dup (BBI0507-MSD1) Source: MBI0166-01 Prepared & Analyzed: 9/16/2021 Copper 0.0626 0.00100 mg/L 0.0500 0.0133 98.5 70-130 3.82 20 Manganese 0.0546 0.00100 mg/L 0.0500 0.00666 95.9 70-130 7.61 20 Nickel 0.0449 0.000500 mg/L 0.0500 0.000869 88.1 70-130 8.81 20 Cadmium 0.0519 0.000250 mg/L 0.0500 ND 104 70-130 2.92 20 Barium 0.0597 0.00100 mg/L 0.0500 0.00648 106 70-130 1.21 20 Chromium 0.0489 0.00100 mg/L 0.0500 ND 97.8 70-130 6.01 20 Lead 0.0475 0.000500 mg/L 0.0500 0.000322 94.3 70-130 3.60 20 Arsenic 0.0489 0.00100 mg/L 0.0500 0.000423 97.0 70-130 6.39 20 Zinc 0.0594 0.00100 mg/L 0.0500 0.0112 96.4 70-130 5.99 20 Silver 0.0498 0.000200 mg/L 0.0500 ND 99.7 70-130 6.84 20 Matrix Spike Dup (BBI0507-MSD2) Source: MBI0317-01 Prepared & Analyzed: 9/16/2021 Copper 0.0502 0.00100 mg/L 0.0500 0.00183 96.7 70-130 1.09 20 Cadmium 0.0535 0.000250 mg/L 0.0500 ND 107 70-130 6.72 20 Arsenic 0.0537 0.00100 mg/L 0.0500 0.000554 106 70-130 1.74 20 Chromium 0.0486 0.00100 mg/L 0.0500 ND 97.2 70-130 0.876 20 Silver 0.0510 0.000200 mg/L 0.0500 ND 102 70-130 1.79 20 Barium 0.0578 0.00100 mg/L 0.0500 0.00553 104 70-130 1.99 20 Nickel 0.0511 0.000500 mg/L 0.0500 0.00155 99.1 70-130 3.46 20 Zinc 0.0732 0.00100 mg/L 0.0500 0.0253 95.9 70-130 0.888 20 Manganese 0.0620 0.00100 mg/L 0.0500 0.00626 111 70-130 6.47 20 Lead 0.0504 0.000500 mg/L 0.0500 0.000179 100 70-130 5.89 20 Page 7 of 12

Anatek Labs, Inc.

1282 Alturas Drive - Moscow, ID 83843 - (208) 883-2839 - Fax (208) 8829246 - email moscow@anateklabs.com 504 E Sprague Ste. D - Spokane, WA 99202 - (509) 838-3999 - fax (509) 838-4433 - email spokane@anateklabs.com Quality Control Data (Continued)

Metals by ICP-MS (Continued)

Reporting Spike Source %REC RPD Analyte Result Qual Limit Units Level Result %REC Limits RPD Limit Batch: BBI0528 - ICP-MS Blank (BBI0528-BLK1) Prepared & Analyzed: 9/17/2021 Selenium ND 0.00100 mg/L LCS (BBI0528-BS1) Prepared & Analyzed: 9/17/2021 Selenium 0.0467 0.00100 mg/L 0.0500 93.5 85-115 Matrix Spike (BBI0528-MS1) Source: MBI0166-01 Prepared & Analyzed: 9/17/2021 Selenium 0.0501 0.00100 mg/L 0.0500 0.000589 99.1 70-130 Matrix Spike Dup (BBI0528-MSD1) Source: MBI0166-01 Prepared & Analyzed: 9/17/2021 Selenium 0.0465 0.00100 mg/L 0.0500 0.000589 91.7 70-130 7.60 20 Batch: BBI0740 - ICP-MS Blank (BBI0740-BLK1) Prepared: 9/23/2021 Analyzed: 10/12/2021 Titanium ND 0.00100 mg/L LCS (BBI0740-BS1) Prepared: 9/23/2021 Analyzed: 10/12/2021 Titanium 0.0471 0.00100 mg/L 0.0500 94.3 85-115 Matrix Spike (BBI0740-MS1) Source: MBI0402-02 Prepared: 9/23/2021 Analyzed: 10/12/2021 Titanium 0.0505 0.00100 mg/L 0.0500 0.00152 97.9 70-130 Matrix Spike Dup (BBI0740-MSD1) Source: MBI0402-02 Prepared: 9/23/2021 Analyzed: 10/12/2021 Titanium 0.0533 0.00100 mg/L 0.0500 0.00152 104 70-130 5.48 20 Quality Control Data (Continued)

Mercury Reporting Spike Source %REC RPD Analyte Result Qual Limit Units Level Result %REC Limits RPD Limit Batch: BBI0380 - Hg Trace Blank (BBI0380-BLK1) Prepared & Analyzed: 9/14/2021 Mercury ND U 0.000500 ug/L LCS (BBI0380-BS1) Prepared & Analyzed: 9/14/2021 Mercury 0.00480 0.000500 ug/L 0.00500 96.1 77-123 Matrix Spike (BBI0380-MS1) Source: MBI0287-02 Prepared & Analyzed: 9/14/2021 Mercury 0.00854 0.000500 ug/L 0.00500 0.00407 89.6 71-125 Matrix Spike Dup (BBI0380-MSD1) Source: MBI0287-02 Prepared & Analyzed: 9/14/2021 Mercury 0.00862 0.000500 ug/L 0.00500 0.00407 91.0 71-125 0.839 24 Quality Control Data (Continued)

Metals by ICP Page 8 of 12

Anatek Labs, Inc.

1282 Alturas Drive - Moscow, ID 83843 - (208) 883-2839 - Fax (208) 8829246 - email moscow@anateklabs.com 504 E Sprague Ste. D - Spokane, WA 99202 - (509) 838-3999 - fax (509) 838-4433 - email spokane@anateklabs.com Reporting Spike Source %REC RPD Analyte Result Qual Limit Units Level Result %REC Limits RPD Limit Batch: BBI0613 - ICP Blank (BBI0613-BLK1) Prepared: 9/20/2021 Analyzed: 9/21/2021 Potassium ND 0.500 mg/L Calcium ND 0.100 mg/L Silicon ND 0.100 mg/L Silica (as SiO2) ND 0.214 mg/L Iron ND 0.0100 mg/L Magnesium ND 0.100 mg/L Sodium ND 0.100 mg/L LCS (BBI0613-BS1) Prepared: 9/20/2021 Analyzed: 9/21/2021 Magnesium 10.4 0.100 mg/L 10.0 104 85-115 Sodium 10.2 0.100 mg/L 10.0 102 85-115 Calcium 10.3 0.100 mg/L 10.0 103 85-115 Silicon 10.0 0.100 mg/L 10.0 100 85-115 Iron 0.212 0.0100 mg/L 0.200 106 85-115 Potassium 10.3 0.500 mg/L 10.0 103 85-115 Matrix Spike (BBI0613-MS1) Source: MBI0317-01 Prepared: 9/20/2021 Analyzed: 9/21/2021 Silicon 16.0 0.100 mg/L 10.0 5.71 103 70-130 Calcium 46.8 0.100 mg/L 10.0 35.3 114 70-130 Sodium 93.7 0.100 mg/L 10.0 81.8 119 70-130 Magnesium 24.5 0.100 mg/L 10.0 13.9 106 70-130 Iron 0.254 0.0100 mg/L 0.200 0.0388 108 70-130 Potassium 26.6 0.500 mg/L 10.0 15.8 108 70-130 Matrix Spike Dup (BBI0613-MSD1) Source: MBI0317-01 Prepared: 9/20/2021 Analyzed: 9/21/2021 Silicon 16.5 0.100 mg/L 10.0 5.71 108 70-130 2.89 20 Sodium 95.9 M3 0.100 mg/L 10.0 81.8 141 70-130 2.35 20 Magnesium 25.2 0.100 mg/L 10.0 13.9 113 70-130 2.90 20 Potassium 27.2 0.500 mg/L 10.0 15.8 115 70-130 2.45 20 Iron 0.259 0.0100 mg/L 0.200 0.0388 110 70-130 1.76 20 Calcium 48.1 0.100 mg/L 10.0 35.3 128 70-130 2.80 20 Page 9 of 12

MBI0287 Page 10 of 12 350 Hills Street. Suite 107 Metals's Sample Routing Sheet Ill IllIIIIIIIIIIIIIIIIIllII Richland, WA 99354-55 1l 91712021 Due 09/22/21

,ST

[509) 377-8058 Fox: (509) 377-8464 ans tpleID Cntoar ID Site s..,i, 1.ocatioi Matrix Date/11ae Colfd l'reienafie 220182--03 SSWB Spray Pond 0 Water/Waste Water 9/7/202 l 8:20 HN03 ( 1) Lead EPA 200.8 HN03 ( 1) Selenium EPA 200.8 HN03 ( 1) Titanium EPA 200.8 HN03 ( 1) Zinc EPA 200.8 2201 82-04 TMU TMU Water/Waste Water 9nt202 I 8:55 ICP Prep EPA 200.2 HN03 ( I) Silver EPA 200.8 HN03 ( I) Arsenic EPA 200.8 HN03 (I) Barium EPA 200.8 HN03 (I) Calcium EPA 200.8 HN03 (l) Cadmium EPA 200.8 HN03 (I)

HN03 ( 1), ship Chromium Copper EPA 200.8 EPA 200.8 HN03 ( I), ship Iron EPA 200.8 HN03 (I) Potassium EPA 200.8 HN03 (I) ~gnesium

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Page 11 of 12 350 Hills Street. Suite 107 Metals 's Sample Routing Sheet A ENERGY Richland. WA 99354-551 1 9ll/2021 W NORTHWEST.

(509) 377-8058 Fax: (509) 377-8464 People* Vision

Solutions Ciiloaerm -Siplel.ocadcii 'Miirli "Dialilrlme Coll'd Praenadve Panaetin Mdliod 220182--01 CW 24-hr composite CW Water/Waste Water 9/7/2021 8:54 ICP Prep EPA 200.2 HNO3 (I) Silver EPA 200.8 HNO3 ( I) Arsenic EPA 200.8 I-INO3( 1) Bariwn EPA 200.8 HNO3 ( 1) ~ EPA 200.8 HNO3 (I) Calcium EPA 200.8 I-INO3 ( I) Cadmiwn EPA 200.8 I-IN03 (I) Chromium EPA 200.8 HNO3 (I), ship Copper EPA 200.8 HNO3 (I), ship Iron EPA 200.8 HNO3 (I) ~ EPA 200.8 HNO3 (I) Potassium EPA 200.8 HNO3 ( 1) Magnesium EPA 200.8 HN03 ( I ) Manganese EPA 200.8 HNO3(1 ) Sodium EPA 200.8 Al So : l>>..:> l.t...,a..\ fv1e..r'\.v .Q \~~ \ 6 HNO3 (I)

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A&lillililll Selenium EPA 200.8 EPA 200.8 HNO3 (I) Silicon EPA 200.8 HN03 ( 1) Titanium EPA 200.8 HNO3 ( 1) llllmllim:: EPA 200.8 HNO3 ( 1) Zinc EPA 200.8 220182-03 SSWB Spray Pond B Water/Waste Water 9/7/2021 8:20 ICP Prep EPA 200.2 I-IN03 ( I) Silver EPA 200.8 I-INO3 (I) Arsenic EPA 200.8 I-INO3 (I) Bariwn EPA 200.8 I-INO3 (I) Cadmium EPA 200.8 HNO3 (I) Chromium EPA 200.8 HNO3 (I), ship Copper EPA 200.8 HN03 ( I), ship Iron EPA 200.8 HNO3 (I) Potassiwn EPA 200.8 1-INOJ (1) Magncsiwn EPA 200.8 I-INO3 ( I) Manganese EPA 200.8 HNO3 ( 1) Sodium EPA 200.8 HNO3 (I) Nickel EPA 200.8 12-e\i,1 utllli.1 lvd ~ _ _ _ __ __ . -- Dti1,H / 1 1 rn,e o'1 I U 1 / 2. I I 3L/ 0 ~ CCl\') H ol t?vJ w #1(~~ /zk,

MBI0287 Anatek Lab.~, Jue. Sample Receipt and Preservation Form IllIllIIIIIllllll/111111111 Due 09/22/21

!5~7 .'1/VV TAT: e Client Name: ___*_*- *_.1 Samples Received From:

RUSH: _ __ days UPS Project:

USPS Client Courier Other: _ _ _ _ __

Custody Seal on Cooler/Box: Yes Custody Seals Intact: Yes No @.

Number of Coolers/lBoxes: _ _ _ _ _ _ __ Type of Ice: lce/@s Blue Ice Dry Ice None Packing Material: B~ Bags Foam/Peanuts None Other: _ _ _ _ __

Cooler Temp As Read (°C): t), 1 Cooler Temp Corrected (°C): __-- __ Thermometer Used: _ _ _ _ __

Comments:

Samples Received Intact? No N/A Chain of Custody Present? No N/A Samples Received Within Hold Time? No N/A Samples Properly Preserved? No NIA voe Vials Free of Headspace (<6mm)?

voe Trip Blanks Present? Yes No No j Labels and Chains Agree?

Total Number of Sample Bottles Received:

5 No N/A Chain of Custody Fully Completed?

Correct Containers Received?

Anatek Bottles Used?

i~ No No

~

N/A NIA Unknown Record preservative*s (and lot numbers, if known) for containers below:

~ {Zfa.;t/{1 )- tb/tll-Ft,"SlA1 ~C-

{MJJ?, _ }Adr.,t ff1(?J:. I ~ S Notes, comments, etc. (also use this space if contactinq the client - record names and date/time)

Received/Inspected By: - - - ~- -- -- - Date/Time: _ ~_ _ __f&;

(00 _,z;,,

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Form F19.00 - Eff 8 Feb 2019 Page 1 of 1 Page 12 of 12

SampleNumber Matrix Test Method Customername Units Qualifier Param CAS Result DetectionLimit RDL RepLimit ExtractDate CollectDate CollectTime ReceiveDate CustomerSampleNumber MBI0287-01 Water Ag 200.8 EPA 200.8 Energy Northwest mg/L Silver 7440-22-4 <0.00100 0.0000660 0.0000660 0.00100 9/16/2021 2:39:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water As 200.8 EPA 200.8 Energy Northwest mg/L Arsenic 7440-38-2 0.00567 0.0000820 0.0000820 0.00100 9/16/2021 2:39:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Ba 200.8 EPA 200.8 Energy Northwest mg/L Barium 7440-39-3 0.250 0.0000600 0.0000600 0.00100 9/16/2021 2:39:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Ca 200.7 EPA 200.7 Energy Northwest mg/L Calcium 7440-70-2 177 0.0182 0.0182 0.100 9/20/2021 4:30:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Cd 200.8 EPA 200.8 Energy Northwest mg/L Cadmium 7440-43-9 <0.00100 0.0000390 0.0000390 0.00100 9/16/2021 2:39:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Cr 200.8 EPA 200.8 Energy Northwest mg/L Chromium 7440-47-3 0.00110 0.0000400 0.0000400 0.00100 9/16/2021 2:39:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Cu 200.8 EPA 200.8 Energy Northwest mg/L Copper 7440-50-8 0.0110 0.0000650 0.0000650 0.00100 9/16/2021 2:39:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Fe 200.7 EPA 200.7 Energy Northwest mg/L Iron 7439-89-6 0.357 0.00720 0.00720 0.0100 9/20/2021 4:30:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water K 200.7 EPA 200.7 Energy Northwest mg/L Potassium 7440-09-7 6.77 0.0521 0.0521 0.500 9/20/2021 4:30:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Mg 200.7 EPA 200.7 Energy Northwest mg/L Magnesium 7439-95-4 40.3 0.0154 0.0154 0.100 9/20/2021 4:30:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Mn 200.8 EPA 200.8 Energy Northwest mg/L Manganese 7439-96-5 0.0364 0.000100 0.000100 0.00100 9/16/2021 2:39:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Na 200.7 EPA 200.7 Energy Northwest mg/L Sodium 7440-23-5 43.3 0.0124 0.0124 0.100 9/20/2021 4:30:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Ni 200.8 EPA 200.8 Energy Northwest mg/L Nickel 7440-02-0 0.00276 0.000180 0.000180 0.00100 9/16/2021 2:39:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Pb 200.8 EPA 200.8 Energy Northwest mg/L Lead 7439-92-1 <0.00100 0.0000150 0.0000150 0.00100 9/16/2021 2:39:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Se 200.8 EPA 200.8 Energy Northwest mg/L Selenium 7782-49-2 0.00178 0.000290 0.000290 0.00100 9/17/2021 10:17:35 AM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Si 200.7 EPA 200.7 Energy Northwest mg/L Silica (as SiO2) 40.2 0.0931 0.0931 0.214 9/20/2021 4:30:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Si 200.7 EPA 200.7 Energy Northwest mg/L Silicon 7440-21-3 18.8 0.0435 0.0435 0.100 9/20/2021 4:30:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Ti 200.8 EPA 200.8 Energy Northwest mg/L Titanium 7440-32-6 0.00938 0.000100 0.000100 0.00100 9/23/2021 10:17:14 AM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-01 Water Zn 200.8 EPA 200.8 Energy Northwest mg/L Zinc 7440-66-6 0.0201 0.000200 0.000200 0.00100 9/16/2021 2:39:00 PM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-01 (CW 24-hr composite)

MBI0287-02 Water Hg 1631 EPA 1631 E Energy Northwest ug/L Mercury 7439-97-6 0.00407 0.000200 0.000200 0.000500 9/14/2021 8:39:00 AM 09/07/2021 08:54 9/8/2021 12:16:00 PM 220182-02 Sample 220182-02; Sample 220182-01 data not used.

Excerpt from Anatek EDD file for Mercury grab sample detection limit

Pace Analytical Services, LLC.

1700 Elm Street Minneapolis, MN 55414 ace Analytical' Phone: 612.607.1700 Fax: 612.607.6444 www.pacelabs.com Report Prepared for: Report Information:

Jane LePage Pace Project #: 10577831 Energy Northwest Environmental Ser Sample Receipt Date: 09/08/2021 76 N Power Plant Loop Client Project #: 220182 NPDES Priority Richland WA 99354 Client Sub PO #: N/A State Cert #: C486 Invoicing & Reporting Options:

REPORT OF The report provided has been invoiced as a Level 2 LABORATORY 2,3,7,8-TCDD Report. If an upgrade of this report package is requested, an additional charge may be ANALYSIS FOR applied.

TCDD Please review the attached invoice for accuracy and forward any questions to Carolynne Trout, your Pace Project Manager.

This report has been reviewed by:

October 01, 2021 Carolynne Trout, Project Manager (612) 607-6351 (612) 607-6444 (fax)

Carolynne.Trout@pacelabs.com Report of Laboratory Analysis Report Prepared Date:

Thisreportshouldn o tbereproduced,exceptinfull, September 24, 2021 withoutthewrittenconsento fPaceAnalyticalServices,Inc.

T h eresultsrelateonlyt othesamplesincludedinthisreport.

Report No.....10577831_1613TCDD_DFR Page 1 of 15

Pace Analytical Services, LLC.

1700 Elm Street Minneapolis, MN 55414 Phone: 612.607.1700 Fax: 612.607.6444 DISCUSSION This report presents the results from the analysis performed on one sample submitted by a representative of Energy Northwest. The sample was analyzed for the presence or absence of 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD) using USEPA Method 1613B. Per request, the reporting limits were set to 5 pg/L.

The isotopically-labeled TCDD internal standard in the sample extract was recovered at 68%. All of the labeled standard recoveries obtained for this project were within the target ranges specified in Method 1613B. Also, since the quantification of the native TCDD was based on isotope dilution, the data were automatically corrected for recovery and accurate values were obtained.

A laboratory method blank was prepared and analyzed with the sample batch as part of our routine quality control procedures. The results show the blank to be free of 2,3,7,8-TCDD at the reporting limit.

Laboratory spike samples were also prepared using clean reference matrix that had been fortified with native standard material. The results show that the spiked native TCDD was recovered at 98-111% with a relative percent difference of 12.4%. These results were within the target ranges for the method. Matrix spikes were not prepared with the sample batch.

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent o f Pace Analytical Services, Inc.

Report No.....10577831_1613TCDD_DFR Page 2 of 15

Pace Analytical Services, LLC TM 1700 Elm Street - Suite 200 Minneapolis, MN 55414 Tel: 612-607-1700 Fax: 612- 607-6444 Minnesota Laboratory Certifications Authority Certificate # Authority Certificate #

Missouri 10100 A2LA 2926.01 Montana CERT0092 Alabama 40770 Nebraska NE-OS-18-06 Alaska-DW MN00064 Nevada MN00064 Alaska-UST 17-009 New Hampshire 2081 Arizona AZ0014 New Jersey MN002 Arkansas - WW 88-0680 New York 11647 Arkansas-DW MN00064 North Carolina- 27700 California 2929 North Carolina- 530 Colorado MN00064 North Dakota R-036 Connecticut PH-0256 Ohio-DW 41244 Florida E87605 Ohio-VAP (170 CL101 Georgia 959 Ohio-VAP (180 CL110 Hawaii MN00064 Oklahoma 9507 Idaho MN00064 Oregon- rimary MN300001 Illinois 200011 Oregon-Second MN200001 Indiana C-MN-01 Pennsylvania 68-00563 Iowa 368 Puerto Rico MN00064 Kansas E-10167 South Carolina 74003 Kentucky-DW 90062 Tennessee TN02818 Kentucky-WW 90062 Texas T104704192 Louisiana-DEQ AI-84596 Utah MN00064 Louisiana-DW MN00064 Vermont VT-027053137 Maine MN00064 Virginia 460163 Maryland 322 Washington C486 Michigan 9909 West Virginia-D 382 Minnesota 027-053-137 West Virginia-D 9952C Minnesota-Ag via MN 027-053 Wisconsin 999407970 Minnesota-Petr 1240 Wyoming-UST via A2LA 2926.

Mississippi MN00064 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent o f Pace Analytical Services, Inc.

Report No.....10577831_1613TCDD_DFR Page 3 of 15

Appendix A Sample Management Report No.....10577831_1613TCDD_DFR Pace Analytical Services, Inc. Page 4 of 15

\

,---.:::;:--------------------+---------~-----------,----------------------\.

' CHAIN-OF-CUSTODY Analytic~, Request Document [AB USE 0N_LY-Affix wo:rkorder/Login Label Here or List Pace Workorder Number or MT~lel(!g,in Number Here i _, aceAna!yticar -

l Chain-of-Custody is a LEGAL 'ooCUMENT I Complete all relevent fields Report No.....10577831_1613TCDD_DFR Cor)J,12any: N _ _ Billing Information: I ALL SHADED AREAS are-for LAB.USE ONLY t:::n~q V\ I <> ,~~~ l,C. 1'~()~*--..,.. ': ' **'"

Addres? i::, ~~ "I<... i 12..:'-'h\'-....J.. vJ ~ e..o.j Dl\-<..S ~ ~~re,:r (\~-.> i~ Container PreservativeT~pe ** .. Lab Project Manager:

Report To: \

'-1 Gl..t\ G--

L "":)IL-.

<. \ * ,e._

E~il To\:

\ 't L Y-

<l /"I

&\. &\ , ~ <?.('lfy"~

_ ,.M. "'*"-- ** Preservative Types: (1) nitric acid, (2) sulfuric acid, (3) hydrochloric acid, (4) sodium hydroxide, (5) zinc acetate, i"\"'rl\l\,v,.,r. '~methanol, (7) sodium bisulfate, (8) sodium thiosulfate, (9) hexane, (A) ascorbic acid, (B) ammonium sulfate, Copy To: -..., Si~C,ollectiC?n lnioTAdt'::~" ~v 1,-:.(C:..:.l..:a..:m..:m.:.:o..:n..:iu..:m..:h:..:.Y..:dr..:o..:xi..:de:..:.,..:.(D:;l..:T.:S;_:P,..:_(U::;l..:U:.:.n:.:::p.:.:re::se::rv..:.e::d::.,.:..:(O:..:.l..:O..:th.:.:e::.r=:::;::===;.._---~~~----------1 "t"l.i ~ * * ~() * *

1-"'\ """ ,r- L,;i.:, 0 Analyses Lab Profile/Line: i4 JI 4 Q Customer Project Name/Number: State: i ~o~ntyS/Cf\ityf Time Zone Collected: **:_,Lab Sample Receipt Checklist:

N ?DBS r,,-:-.../;\.,?.i\. WIT 1 \.A I 'M)>T [ l MT [ l CT [ l ET ,.-.

. ,custody seals Present/I_ntact Y N NA Phone: Sc::ici. 3?'1 ,,./.;; (.:,) Site/Facility ID#: ~pliance Monitoring? ** custody Signatures Present Y N NA

'"*'collector Signature Present Y N NA Email: Jf"Yes [ ] No

.._Bottles Intact Y N NA I'tollected By (print): Purchase Order#: ~W PWS ID#: ,correct Bottles Y N NA U<A/\l... k 7 "- ~ Quote#: ~W Location Code: ':sufficient Volume

_. _: .:samples Received on I"e Y

Y N

N NA NA Collected By (signature): Turnaround Date Required: , If mediately Packed on Ice: VOA - Headspace Acceptable Y N NA

' ~ t}_~ / 2* 3 j

2,..e; -z-J ~Yes [ ] No USDA Regulated Soils Samples in Holding Time Y

Y N

N NA NA Um pie Disposal: Rush: ~ield Filtered (if applicable): Residual chlorine Present Y N NA

.,l:)4f>ispose as appropriate [ ] Return [ ] Same Day [ ] Next D~y ] Yes ~ No Cl Strips:

Sample pH Acceptable Y N NA

[ ] Archive:_____ [ ] 2 Day [ ] 3 Day [ ] 4 Day ' [ ] 5 Day .

pH Strips:

[ l Hold:_______ (Expedite Charges Apply) nalysis: - - - - - - - -

Sulfide Present Y N NA

Matrix Codes {Insert in Matrix box below): Drinking Water (DW}, Grou'nd Water (GjN), Wastewater (WW), -Lead Acetate Strips:

Product (P), Soil/Solid (SL), Oil (OL), Wipe (WP), Air (AR), Tissue (TS), Bloassay (B), ~apor {V), Other (OT)

Comp/ Collected (or I Composite End Res #of *~<

.Ll LAB USE ONLY:

Lab Sample#/ Comments:

pc::.

Customer Sample ID Matrix* Grab Composite Start) Cl Ctns Date Time I Date Time ml WO#:10577831 Ill III1111111111111111 10577831

>-1 r-Tl Customer Remarks/ Special Conditions/ Possible Haza_rds: Type i-;_of_

le~,:_

Used: 'et_) Blue_ _

_ _.;.:*...,::.;___;_ *t1 Dry Norie SHORT HOLDS

.;__.;__.;___..;._,_;+-;..;__,;__;__PRESENT holirs):

{<72___

_____;.;,;_ Y _

...:.._;___ N _N/A

,___...;._-I Lab Sample Temperature Info:

fl 2 s* Si 9 9-s 8 Packing Mkterial Used: -.*- __ Lab Tracking#: Temp Blank Received: N NA I, -* . *. : . _**

Therm ID#: ~f......,~~-----

Cooler 1 Temp Upon Receipt: 1, J oC Radchem ~ample(s) scr,_ ened (<500 cpm): y N NA Samples received via: Cooler 1 Therm Corr. Factor: -.:,<( oC

, FEDEX UPS Client ' Courier Pace Courier Cooler 1 Corrected Temp: J--:;:-oc Page 5 of 15 Comments:

r~(~

Relinquished by/Company: (Signature) Date/Time: R1ceived by/Company: (Signature) Date/Time: MTJLLAB USE ONLY ii"\.. ,j_o,__ Gn.w-~ . 1 NJr#lOQ~ 9 }1-Ji-1 1301) /Pc,,.r.(.. ~Jr~ '((Jr-i< ()11Sl) Table#:

1::;fl~::..:=::::;~::...-=:!.:'...:::~J_l::J_..:_::.:..:.:...:.=..=.:_-1-.L!.,.1:....::.!..~~=-==---1-+...::.---.:.:_-..:__:_.::.:_!::._:'.:___:.!..:___...i,....:.._:.JL.:..!:::....__..J,lJ6~~Acctnum:

,~inquished by/Company: (Sigrt'at"'d're) Date/Time: R,ceived by/Company: (Signature) Date/Time:

I V Template: Trip Blank Received: Y N NA HCL MeOH TSP Other 1--,----,--,-,--,-----,------,-------t----::::-------1r--,---:--:---:-----,---------+---,--------l Prelogin:

Relinquished by/Company: {Signature) Date/Time: R,ceived by/Company: (Signature) Date/Time: PM:

PB:

Non Conformance{s):

YES / NO I

Page: _ __

of: _ __

Document Name: Document Revised: 14Apr2021 Sample Condition Upon Receipt (SCUR) - MN Page 1 of 1

~AnIJ/yticaJ' Document No.: Pace Analytical Services -

ENV-FRM-MIN4-0150 Rev.02 Minneapolis Sample Condition Client Name: Project#:

Upon Receipt WO#"10577831 Courier: USPS client PM: CT1 Due Dale: 09/29/21 Ocommercial CLIENT: Energy NW See Exceptions D Tracking Number: -~-<\~'J~~~\-~i>>_:/"_S_r__f~.J~7~l)___ ENV-FRM-MIN4-0142

~------------------- ----'

Custody Seal on Cooler/Box Present? [4ves Seals Intact? r{JYes Biological Tissue Frozen? 0Yes 0No 12IN/A Packing Material: Qaubble Wrap Bubble Bags 0None Oother: _ _ _ _ _ _ __ Temp Blank? @Yes 0 T1{0461) [2TT2{1336) 0T3{0459) 005418-LS Type Thermometer: y!Wet Blue 0None Dry Melted 0 T4{0254) 0 T5{0489) D160285052 of Ice:

Did Samples Originate in West Virginia? Yes J2jNo Were All Container Temps Taken? Yes 0No ~N/A Temp should be above freezing to 6'C Cooler Temp Read w/temp blank: '),',} oc Average Corrected Osee Exceptions Temp (no temp blank ENV-FRM-MIN4-D142 Correction Factor: -<),( Cooler Temp Corrected w/temp blank: :/,{/ oc only): oc D1 Container USDA Regulated Soil: (,Cl N/A, ~pie/Other:_ _ _ _ _ _~ Date/Initials of Person Examining Contents: '1 /7; ~,

t-r-r Did samples originate in a quarantine zone within the United States: AL, AR, CA, FL, GA, Did samples originate from a foreign source (internationally, including ID, LA. MS, NC, NM, NY, OK, OR, SC, TN, TX or VA (check maps)? Yes 0No Hawaii and Puerto Rico)? Yes 0No If Yes to either question, fill out a Regulated Soil Checklist (F-MN-Q-338) and include with SCUR/COC paperwork.

COMMENTS:

i Chain of Custody Present and Filled Out? 121Yes nNo 1.

Chain of Custody Relinquished? 0ves 0No 2.

Sampler Name and/or Signature on COC? 121Yes No ON/A 3.

Samples Arrived within Hold Time? ,E::!Yes No 4.

Short Hold Time Analysis (<72 hr)? 0Yes (Jtqo 5. Fecal Coliform 0HPC Total Coliform/E coli 0BOD/cBOD 0Hex Chrome i

I Turbidity Nitrate Nitrite Oorthophos Oother I

Rush Tum Around Time Requested? 0Yes QNo 6.

Sufficient Volume? [dves No 7.

Correct Containers Used? i21Yes 0No 8.

-Pace Containers Used? (21Yes []No Containers Intact? [afes nNo 9.

Field Filtered Volume Received for Dissolved Tests? 0Yes No i;af,J/A 10. Is sediment visible in the dissolved container? 0Yes 0No Is sufficient information available to reconcile the samples 11. If no, write ID/ Date/Time on Container Below: See Exception D ENV-FRM-MIN4-0142

~es 0No tothe~~t IVl'("-I Matrix: ater J;lsoil Doil Other All containers needing acid/base preservation have been 0Yes 0No r:)N/A 12. Sample#

checked?

,<\~_containers needing preservation are found to be in 0Yes 0No 0 NaOH.. 0 HN03 DH2S04 . 0Zinc Acetate j:JN/A compliance with EPA recommendation?

(HN0 3, HzS0 4, <2pH, NaOH >9 Sulfide, NaOH>lO Cyanide)

.@,,,- ,,~

Positive for Res. 0Yes See Exception D Exceptions : VOA, Colifo~DOC Oil and Grease, ENV-FRM-MIN4-D142 DRO/BOlS (water) and i FAS IL *hi Chlorine?

Res. Chlorine 0No I 0-6Roll I pH Paper Lot#

0-6 Strip I 0-14 Strip Extra labels present on soil VOA or WIDRO containers? 0Yes 0No [dN/A 13. See Exception D Headspace in VOA Vials (greater than 6mm)? 0Yes 0No ILIN/A ENV-FRM-MIN4-0140 Trip Blank Present? 0Yes 0No 12fN/A 14.

Trip Blank Custody Seals Present? 0Yes 0No @N/A Pace Trip Blank Lot# (if purchased):

CLIENT NOTIFICATION/RESOLUTION Field Data Required? Yes 0No Person Contacted: Date/Time:

Comments/Resolution:

Project Manager Review: G,,J 1,it;J-- Date: 9/8/21 Note: Whenever there is a discrepancy affectin;= -Carolina compliance samples, a copy of this form will be sent to the North Carolina DEHNR Certification Office (i.e out of hold, incorrect preservative, out of temp, incorrect containers).

Labeled by: _J__t+-1e(j),,.1_ _ _ _ _ __

Report No.....10577831_1613TCDD_DFR Page 6 of 15

Page 45 of 46 Permit No. WA002515-1 Detection (DL) 1 Quantitation Pollutant & CAS No. (if Recommended µg/L unless Level (QL) 2 available) Analytical Protocol specified µg/L unless specified DIOXIN.

2,3, 7,8-Tetra-Chlorodibenzo-P- 16138 1.3 pg/L 5 pg/L Dioxin (176-40-16) (2,3,7,8 TCDD)

PRIORITY POLLUTANTS (continued)

" Detection (DL) 1 Quantitation

' ~ ! a n t & CAS No. (if Recommended µg/L unless Level (QL) 2 available) Analytical Protocol specified µg/L unless

.. . .. specified Aldrin (309-0~

alpha-BHC (319-134.::6)

PESTICIDESIPCBs 608 608 0.025 0.025 0.05 0.05 beta-BHC (319-85-7~ 608 0.025 0.05 gamma-BHC (58-89-9) "-.. 608 0.025 0.05 delta-BHC (319-86-8)

Chlordane (57-74-9) 8

"- 608 0.025 0.025 0.05 0.05 4,4'-DDT (50-29-3) 4,4' -ODE (72-55-9)

"'" I"-.

"'-... 608 608 608 0.-025 0.025 0.05 0.05 10 4,4' DOD (72-54-8) "'-..608 0.025 0.05 Dieldrin (60-57-1) 668 0.025 0.05 aloha-Endosulfan (959-98-8) 608"'-.. 0.025 0.05 beta-Endosulfan (33213-65-9)

Endosulfan Sulfate (1031-07-8)

Endrin (72-20-8) 608 608 608

' "' 0.025 0.025 0.025 0.05 0.05 0.05 Endrin Aldehyde (7421-93-4)

Heptachlor (76-44-8) 608 608

' ""-. 0.025

'Q..025 0.05 0.05 Heptachlor Epoxide (1024-57-3) 608 O.~ 0.05 EC!ht242 (5346~2-1-9' 9 _.2!)'-, n i:::

-60~ -*-

PCB-1254 (11097-69-1) 608 0.25 0.5 PCB-1221 (11104-28-2) 608 0.25 ..... '- 0.5 PCB-1232 (11141-16-5) 608 0.25 0.5 PCB-1248 ( 12672-29-6) 608 0.25 ~ 0.5 PCB-1260 ( 11096-82-5) 608 0.13 ""Q.5 PCB-1016 (12674-11-2) 9 608 0.13 0.9' Toxaphene (8001-35-2) 608 0.24 0.5 '\.

I. Detection level (DL) or detection limit means the minimum concentration of an analyte (substa~hat can be measured and reported with a 99% confidence that the analyte concentration is greater than zero as determined by the procedure given in 40 CPR part 136, Appendix B.

2. Ouantitation Level {OL) also known as Minimum Level of Quantitation (ML)-The lowest level at which the entire analytical system must give a recognizable signal and acceptable calibration point for the analyte. It is equivalent to the concentration of the lowest calibration standard, assuming that the lab has used all method-specified sample weights, volumes, and cleanup procedures. The QL is calculated Report No.....10577831_1613TCDD_DFR Page 7 of 15

Page 46 of 46 Permit No. WA002515-1 by. multiplyingJhe,,MDLbyt3.J.8 and . roundingthe resulUo.the numbernearestJo. (1, 2, or_5}xJ0n, where n is an integer. (64 FR 30417).

ALSO GIVEN AS:

The smallest detectable concentration of analyte greater than the Detection Limit (DL) where the accuracy (precision & bias) achieves the objectives of the intended purpose. (Report of the Federal Advisory Committee on Detection and Quantitation Approaches and Uses in Clean Water Act Programs Submitted to the US Environmental Protection Agency December 2007).

3. Soluble Biochemical Oxygen Demand method note: First, filter the sample through a Millipore Nylon filter ( or equivalent) - pore size of 0.45-0.50 um (prep all filters by filtering 250 ml oflaboratory grade deionized water through the filter and discard). Then, analyze sample as per method 5210-B.

4. NWTPH Dx*Northwest Total Petroleum Hydrocarbons Diesel Extended Range- see https://fortress.wa.gov/ecy/publications/publications/97602.pdf

5. NWTPH Gx - Northwest Total Petroleum Hydrocarbons Gasoline Extended Range- see https ://fortress. wa. gov/ecy/pub lications/pub lications/97 602. pdf

6. 1, 3-dichloroproylene (mixed isomers) You may report this parameter as two separate parameters: cis-1, 3-dichlorpropropene (10061-01-5) and trans-1, 3-dichloropropene (10061-02-6).

7. Total Benzofluoranthenes - Because Benzo(b)fluoranthene, BenzoG)fluoranthene and Benzo(k)fluoranthene co-elute you may report these three isomers as total benzofluoranthenes.

8. Chlordane - You may report alpha-chlordane (5103-71-9) and gamma-chlordane (5103-74-2) in place of chlordane (57-74-9). If you report alpha and gamma-chlordane, the DL/PQLs that apply are 0.025/0.050.

PCB 1016 & PCB 1242 - You may report these two PCB compounds as one parameter called PCB 1016/1242.

Report No.....10577831_1613TCDD_DFR Page 8 of 15

Pace Analytical Services, LLC 1700 Elm Street - Suite 200 Minneapolis, MN 55414 ace Analvtica/TM Tel: 612-607-1700 Fax: 612- 607-6444 Reporting Flags A = Reporting Limit based on signal to noise (EDL)

B = Less than 10x higher than method blank level C = Result obtained from confirmation analysis D = Result obtained from analysis of diluted sample E = Exceeds calibration range I = Interferencepresent J = Estimated value L= Suppressive interference, analyte may be biased low Nn = Value obtained from additional analysis P = PCDEInterference R = Recovery outside target range S = Peak saturated U = Analyte not detected V = Result verified by confirmation analysis X = %D Exceeds limits Y = Calculated using average of daily RFs

= SeeDiscussion REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent o f Pace Analytical Services, Inc.

Report No.....10577831_1613TCDD_DFR Page 9 of 15

Appendix B Sample Analysis Summary Report No.....10577831_1613TCDD_DFR Pace Analytical Services, Inc. Page 10 of 15

Pace Analytical Services, LLC 1700 Elm Street - Suite 200 Minneapolis, MN 55414 ace Analvtica/TM Tel: 612-607-1700 Fax: 612- 607-6444 Method 1613B Sample Analysis Results Client - Energy Northwest Environmental Services Lab Client's Sample ID 220182-01 Lab Sample ID 10577831001 Filename Y210921A_16 Injected By SMT Total Amount Extracted 973 mL Matrix Water

% Moisture NA Dilution NA Dry Weight Extracted NA Collected 09/07/2021 08:54 ICAL ID Y210721 Received 09/08/2021 08:50 CCal Filename(s) Y210921A_02 Extracted 09/10/2021 11:00 Method Blank ID BLANK-92958 Analyzed 09/21/2021 19:25 Native Conc EMPC RL Internal ng's Percent Isomers pg/L pg/L pg/L Standards Added Recovery 2,3,7,8-TCDD ND ----- 5.0 2,3,7,8-TCDD-13C 2.00 68 Recovery Standard 1,2,3,4-TCDD-13C 2.00 NA Cleanup Standard 2,3,7,8-TCDD-37Cl4 0.20 85 Conc = Concentration (Totals include 2,3,7,8-substituted isomers). ND = Not Detected EMPC = Estimated Maximum Possible Concentration NA = Not Applicable RL = Reporting Limit NC = Not Calculated REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent o f Pace Analytical Services, Inc.

Report No.....10577831_1613TCDD_DFR Page 11 of 15

Pace Analytical Services, LLC 1700 Elm Street - Suite 200 Minneapolis, MN 55414 ace Analvtica/TM Tel: 612-607-1700 Fax: 612- 607-6444 Method 1613B Blank Analysis Results Lab Sample Name DFBLKRF Lab Sample ID BLANK-92958 Matrix Water Filename U210921A_09 Dilution NA Total Amount Extracted 1030 mL Extracted 09/10/2021 11:00 ICAL ID U210629 Analyzed 09/21/2021 16:39 CCal Filename(s) U210921A_04 Injected By SMT Native Conc EMPC RL Internal ng's Percent Isomers pg/L pg/L pg/L Standards Added Recovery 2,3,7,8-TCDD ND ----- 5.0 2,3,7,8-TCDD-13C 2.00 70 Recovery Standard 1,2,3,4-TCDD-13C 2.00 NA Cleanup Standard 2,3,7,8-TCDD-37Cl4 0.20 86 Conc = Concentration (Totals include 2,3,7,8-substituted isomers).

EMPC = Estimated Maximum Possible Concentration RL = Reporting Limit REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent o f Pace Analytical Services, Inc.

Report No.....10577831_1613TCDD_DFR Page 12 of 15

Pace Analytical Services, LLC 1700 Elm Street - Suite 200 Minneapolis, MN 55414 ace Analvtica/TM Tel: 612-607-1700 Fax: 612- 607-6444 Method 1613B Laboratory Control Spike Results Lab Sample ID LCS-92959 Filename F210920A_07 Matrix Water Total Amount Extracted 1000 mL Dilution NA ICAL ID F210611 Extracted 09/10/2021 11:00 CCal Filename F210920A_01 Analyzed 09/20/2021 18:25 Method Blank ID BLANK-92958 Injected By SMT Lower Upper %

Compound Cs Cr Limit Limit Rec.

2,3,7,8-TCDD 10 9.8 7.3 14.6 98 2,3,7,8-TCDD-37Cl4 10 8.3 3.7 15.8 83 2,3,7,8-TCDD-13C 100 77 25.0 141.0 77 C s = Concentration Spiked (ng/mL)

Cr = Concentration Recovered (ng/mL)

Rec. = Recovery (Expressed a s Percent)

Control Limit

Reference:

Method 1613, Table 6, 10/94 Revision R = Recovery outside of control limits Nn = Value obtained from additional analysis

= See Discussion REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent o f Pace Analytical Services, Inc.

Report No.....10577831_1613TCDD_DFR Page 13 of 15

Pace Analytical Services, LLC 1700 Elm Street - Suite 200 Minneapolis, MN 55414 ace Analvtica/TM Tel: 612-607-1700 Fax: 612- 607-6444 Method 1613B Laboratory Control Spike Results Lab Sample ID LCSD-92960 Filename F210921C_02 Matrix Water Total Amount Extracted 1020 mL Dilution NA ICAL ID F210611 Extracted 09/10/2021 11:00 CCal Filename F210921C_01 Analyzed 09/21/2021 14:55 Method Blank ID BLANK-92958 Injected By SMT Lower Upper %

Compound Cs Cr Limit Limit Rec.

2,3,7,8-TCDD 10 11 7.3 14.6 111 2,3,7,8-TCDD-37Cl4 10 9.0 3.7 15.8 90 2,3,7,8-TCDD-13C 100 76 25.0 141.0 76 C s = Concentration Spiked (ng/mL)

Cr = Concentration Recovered (ng/mL)

Rec. = Recovery (Expressed a s Percent)

Control Limit

Reference:

Method 1613, Table 6, 10/94 Revision R = Recovery outside of control limits Nn = Value obtained from additional analysis

= See Discussion REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent o f Pace Analytical Services, Inc.

Report No.....10577831_1613TCDD_DFR Page 14 of 15

Pace Analytical Services, LLC 1700 Elm Street - Suite 200 Minneapolis, MN 55414 ace Analvtica/TM Tel: 612-607-1700 Fax: 612- 607-6444 Method 1613B Spike Recovery Relative Percent Difference (RPD) Results Client Energy Northwest Environmental Services Lab Spike 1 ID LCS-92959 Spike 2 ID LCSD-92960 Spike 1 Filename F210920A_07 Spike 2 Filename F210921C_02 Spike 1 Spike 2 Compound %REC %REC %RPD 2,3,7,8-TCDD 98 111 12.4

%REC = Percent Recovered RPD = The difference between the t w o values divided by the mean value REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent o f Pace Analytical Services, Inc.

Report No.....10577831_1613TCDD_DFR Page 15 of 15

5'1,\11:- OF WASHL"l(;TUN DEPARTMENT OF ECOLOGY

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MJ1Kl1es/er, WA 'iH1';:l-041/lf * (1{,fJJ H7 T-IIH41J April 20, 2021 Matt Turner Energy Northwest Environmental Services Lab 350 Hills Street, Suite 107 Richland, WA 99354

Dear Matt Turner:

Thank you for your application for renewal in the Environmental Laboratory Accreditation Program.

Attached is a new Certificate of Accreditation covering the one-year period beginning April 12, 2021 and a current Scope of Accreditation.

A number of parameters have been denied for EPA Method 200.8 and EPA Method 353.2, in drinking water matrix, since PT results were not submitted.

Calcium by EPA Method 200.8 in Non-Potable Water, was denied since the only PT result submitted was unacceptable.

Parameters for Biochemical Oxygen Demand and Dissolved Oxygen have been upgraded from provisional status to good standing, due to the submission of an acceptable SOP and acceptable PT results.

Total Organic Carbon by SM 531OB-2011, in Drinking Water has been upgraded from provisional status to good standing, with the resolution of audit findings and acceptable PT results.

Total Kjeldahl Nitrogen by EPA Method 351.2 has been upgraded from provisional status to good standing. Please see the accompanying technical report.

Congratulations on the resolution of all findings from the 2019 onsite audit. That audit is now closed.

Renewal of accreditation is based in part on review of your lab's performance over the past year as evidenced by participation in proficiency testing (PT) studies. In general, full accreditation is awarded for those parameters for which the two most recent PT results, if applicable, were rated satisfactory.

Provisional accreditation is awarded if the latest of the two most recent PT results was rated "Not Acceptable" or only one PT result was submitted during the past twelve months. Accreditation is withheld for those parameters for which the two most recent PT results were rated "Not Acceptable" or no PT results were submitted during the past twelve months.

As a reminder, continued participation in the Ecology Lab Accreditation Program requires the lab to:

Submit a renewal application and fees annually

Report significant changes in facility, personnel, analytical methods, equipment, the lab's quality assurance (QA) manual or QA procedures as they occur

Participate in proficiency testing studies semi-annually, with the following exception: For each parameter where all PT results were satisfactory, you are required to submit only one PT result over this next year, and in subsequent years, as long as the results are satisfactory.

YOUR RIGHT TO APPEAL You have a right to appeal Ecology's decision to the Pollution Control Hearing Board (PC! 113) within 30 days of the date of receipt of this decision letter. The appeal process is governed by Chapter 43.21 B RCW and Chapter 371-08 WAC. "Date of receipt" is defined in RCW 43.2 ll3.001(2).

To appeal you must do the following within 30 days of the date of receipt of this decision:

File your appeal and a copy of this decision with the PCHB (see addresses below). Filing means actual receipt by the PCHB during regular business hours.

Serve a copy of your appeal and this decision on Ecology in paper form - by mail or in person. (Sec addresses below.) E-mail is not accepted.

You must also comply with other applicable requirements in Chapter 43 .218 RCW and Chapter 371-08 WAC.

ADDRESS AND LOCATION INFORMATION Street Addresses Mailin~ Addresses Department of Ecology Department of Ecology Attn: Appeals Processing Desk Attn: Appeals Processing Desk 300 Desmond Drive SE PO Box 47608 Lacey, WA 98503 Olympia, WA 98504-7608 Pollution Control Hearings Board Pollution Control Hearings Board 1111 Israel Road SW PO Box 40903 STE 301 Olympia, WA 98504-0903 Tumwater, WA 9850 I If you have any questions concerning the accreditation of your lab, please contact Rebecca Wood at (360) 871-88 l 1, fax (360) 871-8849, or by e-mail at rebecca.wood@ecy.wa.gov.

Sincerely,

~~

Rebecca Wood Lab Accreditation Unit Supervisor RW:RW:rw Enclosures

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~ - 0f Eco Iogy Energy Northwest Environmental Services Lab Richland, WA has complied with provisions set forth in Chapter 173-50 WAC and is hereby recogniz.ed by the Department of Ecology as an ACCREDITED LABORATORY for the analytical parameters listed on the accompanying Scope of Accreditation. This certificate is effective April 12, 2021 and shall expire April 11, 2022.

Witnessed under my hand on April 20, 2021

~~

Rebecca Wood Lab Accreditation Unit Supervisor Laboratory ID C866

WASHINGTON STATE DEPARTMENT OF ECOLOGY ENVIRONMENTAL LABORATORY ACCREDITATION PROGRAM SCOPE OF ACCREDITATION Energy Northwest Environmental Services Lab Richland, WA is accredited for the analytes listed below using the methods indicated. Full accreditation 1s granted unless stated otherwise in a note. EPA is the U.S. Environmental Protection Agency. SM is "Standard Methods for the Examination of Water and Wastewater." SM refers to EPA approved method versions. ASTM is the American Society for Testing and Materials. USGS is the U.S. Geological Survey. AOAC is the Association of Official Analytical Chemists. Other references are described in notes.

Matrix/Analyte Method Notes Drinking Water Chloride EPA 300 0_21_1 993 Fluoride EPA 300.0_2.1_1993 Nitrate EPA 300.0_2.1 _1993 Nitrate + Nitrite EPA 300.0_2.1_1993 Nitrite EPA 300.0_2.1 _1993 Sulfate EPA 300.0_2.1 _1993 Solids, Total Dissolved SM 2540 C-2011 Solids, Total Suspended SM 2540 D-2011 Total Organic Carbon SM 5310 B-2011 Non-Potable Water Bromide EPA 300.0_2.1 _1993 Chloride EPA 300.0_2.1 _1993 Fluoride EPA 300.0_2 1_1993 Nitrate EPA 300.0_2.1 _1993 Nitrate + Nitrite EPA 300.0_2.1 _1993 Nitrite EPA 300.0_2.1 _1993 Sulfate EPA 300.0_2.1_1993 Nitrogen, Total Kjeldahl EPA 351.2_2_1993 Nitrale EPA 353.2_2_1993 Nitrate+ Nitrite EPA 353.2_2_1993 Nitrite EPA 353.2_2_1993 Chemical Oxygen Demand {COD) EPA 410.4_2_1993 Turbidity SM2130 B-2011 Alkalinity SM 2320 8-2011 Specific Conductance SM2510 B-2011 Solids, Total Dissolved SM 2540 C-2011 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 4/12/2021 Page 1 of 3 Scope of Accreditation Report for Energy North11-1esl Environmental Services Lab Scope Expires: 4/1112022 C866-21

Energy Northwest Environmental Services Lab Matrix/Ana/yte Method Notes Non-Potable Water Solids, Total Suspended SM 2540 D-2011 Chromium, Hexavalent SM 3500-Cr B-2011 pH SM 4500-H+ B-2011 Ammonia SM 4500-NH3 D-2011 Dissolved Oxygen SM 4500-0 G-2011 Orthophosphate SM 4500-P E-2011 Phosphorus, Total SM 4500-P E-2011 Biochemical Oxygen Demand (BOD) SM 5210 B-2011 Carbonaceous BOD (CBOD) SM 5210 B-2011 TotaI Organic Carbon SM 5310 B-2011 Aluminum EPA 200.8_5.4_1994 Antimony EPA 200.8_5.4_1994 Arsenic EPA 200.8_5.4_1994 Barium EPA 200.8_5.4_1994 Beryllium EPA 200.8_5.4_1994 Cadmium EPA 200.8_5.4_1994 Chromium EPA 200.8_5.4_1994 Cobalt EPA 200.8_5 4_1994 Copper EPA 200.8_5,4_1994 Iron EPA 200.8_5.4_1994 Lead EPA 200.8_5.4_1994 Magnesium EPA 200.8_5.4_1994 Manganese EPA 200.8_5.4_1994 Molybdenum EPA 200.8_5.4_1994 Nickel EPA 200.8_5.4_1994 Potassium EPA 200.8_5.4_1994 Selenium EPA 200.8_5.4_1994 Silver EPA 200.8_5.4_1994 Sodium EPA 200.8_5.4_1994 Thallium EPA 200.8_5.4_1994 Tin EPA 200.8_5,4_1994 Titanium EPA 200.8_5.4_1994 Vanadium EPA 200.8_5.4_1994 Zinc EPA 200.8_5.4_1994 Gross Alpha SM 7110 8-00 Gross Beta SM 7110 B-00 Cesium 137 SM 7120 B Washington State Department of Ecology Laboratory Accrealtation Unit Effective Date: 4/12/2021 Page 2 of 3 Scope of Accreditation Report for Energy Northwest Environmental Services Lab Scope Expires: 4/11/2022 C866-21

Energy Northwest Environmental Services Lab Matrix/Analyte Method Notes Non-Potable Water Cesium-134 SM 7120 B Gamma Emitters SM 7120 B Tritium SM 7500-3H B Solid and Chemical Materials Cesium 137 SM 7120 B Cesium-134 SM 7120 B Gamma Emitters SM 7120 8 Accredited Parameter Note Detail 04/20/2021 Authentication Signature Date Rebecca Wood, Lab Accreditation Unit Supervisor Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 4/12/2021 Page 3 of 3 Scope of Accreditation Report for Energy Northwest Environmental Services Lab Scope Expires: 4111 /2 022 CB66-21

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~asfringtnn Department ~ of Ecology Edge Analytical, Incorporated Burlington, WA has complied with provisions set forth in Chapter 173-50 WAC and is hereby recogniz.ed by the Department of Ecology as an ACCREDITED LAB ORATORY for the analytical parameters listed on the accompanying Scope of Accreditation.

This certificate is effective January 19, 2021 and shall expire January 18, 2022.

Witnessed under my hand on February O1, 2021 .

~~

Rebecca Wood Lab Accreditation Unit Supervisor Laboratory ID C567

WASHINGTON STATE DEPARTMENT OF ECOLOGY ENVIRONMENTAL LABORATORY ACCREDITATION PROGRAM SCOPE OF ACCREDITATION Edge Analytical, Incorporated Burlington, WA is accredited for the analytes listed below using the methods indicated. Full accreditation is granted unless stated otherwise in a note. EPA is the U.S. Environmental Protection Agency. SM is "Standard Methods for the Examination of Water and Wastewater." SM refers to EPA approved method versions. ASTM is the American Society for Testing and Materials. USGS is the U.S. Geological Survey. AOAC is the Association of Official Analytical Chemists. other references are described in notes.

Matrix/Analyte Method Notes Air Benzene EPA 325B Drinking Water pH EPA 150.1_1982 Turbidity EPA 180.1_2_1993 Chromium, Hexavalent EPA 218.6_3.3_1994 Chloride EPA 300.0_2.1_1993 Fluoride EPA 300.0_2.1 _1993 Nitrate EPA 300.0_2.1_1993 Nitrate* Nitrite EPA 300.0_2.1_1993 Nitrite EPA 300.0_2.1 _1993 Orthophosphate EPA 300.0_2.1_1993 Sulfate EPA 300.0_2.1 _1993 Bromate EPA 300.1_1_1997 Bromide EPA 300.1_1_1997 Chlorate EPA 300. 1_1_1997 Chlorite EPA 300.1_1_1997 Cyanide, Available OIA 1677 Color SM 2120 8-2011 1,88 Alkalinity SM 2320 8-2011 1,88 Hardness (calc.) SM 2340 8-2011 1,88 Specific Conductance SM 2510 8-2011 1,8a Solids, Total Dissolved SM 2540 C-2011 1,88 Chlorine (Residual), Free SM 4500-CI G-2011 5,88 Chlorine Dioxide SM 4500-CI02 D-93 5 pH SM 4500-H+8-2011 1,88 Nitrate SM 4500-N03- F-2011 1,88 Washington State Oepartment of Ecology Laboratory Accreditation Unit Effective Date: 1/19/2021 Page 1 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 111 a/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Drinking Water NiIrate + Nitrite SM 4500-Nor F-2011 1,88 Nitrite SM 4500-NorF-2011 1,88 Orthophosphate SM 4500-P F-2011 1,8B Dissolved Organic Carbon SM 5310 B-2011 1 Total Organic Carbon SM 5310 B-2011 UV Absorbing Organics SM 5910 B-00 Aluminum EPA 200. 7_4.4_1994 Barium EPA 200.7_4.4_1994 Beryllium EPA 200,7_4.4_1994 Cadmium EPA 200.7_4.4_1994 Calcium EPA 200.7_4.4_1994 Chromium EPA 200.7_4.4_1994 Copper EPA 200 7_4.4_1994 Hardness, Total (as CaCO3) EPA 200,7_4.4_1994 Iron EPA 200.7_4.4_1994 Magnesium EPA 200.7_4.4_1994 Manganese EPA 200. 7_4.4_1994 Nickel EPA 200.7_4.4_1994 Silica EPA 200.7_4.4_1994 Silver EPA 200.7_4.4_1994 Sodium EPA 200.7_4.4_1994 Zinc EPA 200.7_4.4_1994 Aluminum EPA 200,8_5.4_1994 Antimony EPA 200.8_5.4_1994 Arsenic EPA 200.8_5.4_1994 Barium EPA 200.8_5.4_1994 Beryllium EPA 200.8_5.4_1994 Cadmium EPA 200.8_5.4_1994 Chromium EPA 200.8_5.4_1994 Copper EPA 200.8_5.4_1994 Lead EPA 200.8_5,4_1994 Manganese EPA 200.8_5.4_1994 Mercury EPA 200.8_5.4_1994 Nickel EPA 200.8_5.4_1994 Selenium EPA 200.8_5.4_1994 Silver EPA 200.8_5,4_1994 Thallium EPA 200.8_5.4_1994 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1/19/2021 Page 2 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1/1812022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Drinking Water Total Uranium EPA 200.8_5.4_1994 Zinc EPA 200.8_5.4_1994 Mercury EPA 245.1 _3_1994 1, 2,3-Trichloropropane EPA 504.1_1.1 _1995 1 1,2-0ibromoethane (EDB, Ethylene dibromide) EPA 504.1 _1.1_1995 1,2 Dibromochloropropane EPA 504. U .1_1995 1,2 4.4'-DDD EPA 508.1_2_1995 4,4'-DDE EPA 508. 1_2_1995 4.4'-DDT EPA 508.1_2_1995 Aldrin EPA 508. 1_2_1995 alpha-BHC (alpha-Hexachlorocyclohexane) EPA 508.1 _2_1995 Aroclor-1016 (PCB-1016) EPA 508 1__2_1995 Aroclor-1221 (PCB-1221) EPA 508.1 _2_1995 Aroclor-1232 (PCB-1232) EPA 508.1_2_1995 Aroclor-1242 (PCB-1242) EPA 508.1 _2_1995 Aroclor-124B (PCB-124B) EPA 508.1 _2_1995 Aroclor-1254 (PCB-1254) EPA 508.1_2_1995 Aroclor-1260 (PCB-1260) EPA 508.1 _2_1995 beta-SHC (beta-H exachi orocycl oh exan e) EPA 508.1_2_1995 Chlordane (tech.) EPA 508.1_2_1995 1,2 delta-BHC EPA 508. 1_2_1995 Dieldrin EPA 508. 1__2_1995 End os ulfan I EPA 508, 1_2_1995 End os ulfan 11 EPA 508.1_2_1995 Endosutfan sulfate EPA 508.1_2_1995 Endrin EPA 508.1_2_1995 Endrin aldehyde EPA 508.1_2_1995 gamma-BHC (Lindane, gamma-Hexachlarocyclohexane) EPA 508.1_2_1995 Heptachlor EPA 508.1_2_1995 Heptachlor epoxide EPA 50B.1_2_1995 Methoxychlor EPA 508.1_2_1995 PCBs EPA 508.1_2_1995 1,2 Toxaphene (Chlorinated camphene) EPA 508.1_2_1995 1,2 2,4,5-T EPA 515.4_1_2000 1,2 2,4-D EPA 515.4_1_2000 1,2 2,4-DB EPA 515.4_1_2000 3,5-Dichlorobenzoic acid EPA 515.4_1_2000 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date 111912021 Page 3 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires 1/1 8/2 022 C567-21

Edge Analytical, Incorporated Matrhc/Analyte Method Notes Drinking Water Acifluorfen EPA 515.4_1_2000 Benlazon EPA 515.4_1_2000 Dacthal (DCPA) EPA 515.4_1_2000 1,2 Dalapon EPA 515.4_1_2000 1,2 Dicamba EPA 515.4_1_2000 Dichloroprop (Di chlo rp rop) EPA 515.4_1_2000 Dinoseb (2-sec"butyl-4,6-dinitrophenol, DNBP) EPA 515.4_1_2000 1,2 Pen tac hlorophenol EPA 515.4_1_2000 1,2 Picloram EPA 515.4_1_2000 1,2 Silvex (2,4,5-TP) EPA 515.4_1_2000 1,2 3-Hydroxycarbofuran EPA 531.2_1_2001 1 Aldicarb (Temik) EPA 531.2_1_2001 1 Aldicarb sulfone EPA 531.2_1_2001 Aldicarb sulfoxide EPA 531.2_1_2001 Carbary! (Sevin) EPA 531.2_1_2001 Carbofuran (Furaden) EPA 531.2_1_2001 Methomyl (Lannate) EPA 531.2_1_2001 Oxamyl EPA 531.2_1_2001 Propoxur (Baygon) EPA 531.2_1 _2001 1 Glyphosate EPA 547_1990 1,2 Diqual EPA 549.2_1_1997 1,2 Paraquat EPA 549.2__1_1997 Bromoacetic acid (MBAA, BAA) EPA 552.3 Rev 1 (2003) 1,2 Bromochloroacetic acid (BCAA) EPA 552.3 Rev 1 (2003) 1 Chloroacetic acid (MCAA, CAA) EPA 552.3 Rev 1 (2003) 1,2 Dibromoacetic acid (DBAA) EPA 552.3 Rev 1 (2003) 1,2 Dichloroacelic acid (CAA) EPA 552.3 Rev 1 (2003) 1,2 Trichloroacetic acid (TCAA) EPA 552.3 Rev 1 (2003) 1,2 1,1, 1,2-Telrachloroethane EPA 524.2_4. 1_1995 1,1, 1-Trichloroethane EPA 524.2_4.1_1995 1,2 1, 1, 2,2-Tetrachloroethane EPA 524.2_4, 1_1995 1 1, 1,2"Trichloroethane EPA 524.2_4.1 _1995 1,2 1, 1-Dichloroethane EPA 524.2_4.1 _1995 1 1, 1-Dichloroethylene EPA 524.2_4.1_1995 1,2 1, 1-Dichloropropene EPA 524.2_4. 1_1995 1 1,2,3-Trichlorobenzene EPA 524.2_4.1 _1995 1,2,4-Trichlorobenzene EPA 524.2_4 1_1995 1,2 Washington Stcite Department of Ecology Laboratory Ace rad ltation Un it Effective Date: 1/19/2021 Page 4 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1/18/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Drinking Water 1,2,4-Trimethylbenzene EPA 524.2_4. 1_1995 1,2-Dichlorobenzene EPA 524.2_4. U 995 1,2 1,2-Dichloroethane {Ethylene dichloride) EPA 524.2_4. 1_1995 1,2 1,2-Dichloropropane EPA 524.2_4. U 995 1,2 1,3,5-Trimethylbenzene EPA 524.2_4. 1_1995 1 1,3-Dichlorobenzene EPA 524.2_4. U 9% 1 1,3-DichIoropro pane EPA 524.2_4.1 _1995 1,4-Dichlorobenzene EPA 524.2_4.1 _1995 1,2 2,2-Dichlorapropane EPA 524.2_4.1 _1995 1 2-Chlorotoluene EPA 524.2_4.1 _1995 1 4-Chlorotoluene EPA 524.2_4.1 _1995 4-lsopropyltoluene (p-Cymene) EPA 524.2_4.1 _1995 Benzene EPA 524.2_4. U 995 1,2 Brom oben ze ne EPA 524.2_4.1 _1995 1 Brom och loremethane EPA 524.2_4.1 _1995 1 Bromodichloromethane EPA 524, 2_4.1 _1995 1,2 Bromoform EPA 524,2_4.1 _1995 1,2 Carbon tetrachloride EPA 524.2_4.1 _1995 1,2 Chlorobenzene EPA 524,2_4.1 _1995 1,2 Chlorodibromomethane EPA 524.2_4.1 _1995 1,2 Chloroethane (Ethyl chloride) EPA 524.2_4.1 _1995 Chloroform EPA 524.2_4.1_1995 1,2 cis-1, 2-Dichloro ethylene EPA 524.2_4.1 _1995 1,2 cis-1,3-Dichloropropene EPA 524.2_4.1 _1995 Dibromomethane EPA 524.2_4.1 _1995 Dichlorodifluoromethane (Freon-12) EPA 524.2_4.1 _1995 Dichloromelhane (DCM, Methylene chloride) EPA 524.2_4.1 _1995 1,2 Ethylbenzene EPA 524.2_4.1 _1995 1,2 Hexachlorobutadiene EPA 524.2_4.1 _1995 lsopropylbenzene EPA 524.2_4.1 _1995 m-+-p-xylene EPA 524.2_4.1 _1995 Methyl bromide {Bromomethane) EPA 524.2_4.1 _1995 Methyl chloride (Chloromethane) EPA 524.2_4.1 _1995 Naphthalene EPA 524.2_4. 1_1995 n-Butylbenzene EPA 524.2_4.1 _1995 n-Propylbenzene EPA 524.2_4.1 _1995 a-Xylene EPA 524, 2_4.1 _1995 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1119/2021 Page 5 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 111812022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Drinking Water sec-Butylbenzene EPA 524.2_4.1 _1995 Styrene EPA 524.2_4.1 _1995 1,2 tert-Butylbenzene EPA 524.2_4.1 _1995 Tetrachloroethylene (Perchloroeth ylene) EPA 524,2_4.1_1995 1,2 Toluene EPA 524.2_4.1_1995 1,2 Total Trihalome!hanes EPA 524.2_4, 1_1995 1,2 trans-1,2-D ichloroethylene EPA 524.2_4.1 _1995 1,2 Tri chlo roethen e (Trichl oroethy lene) EPA 524.2_4.1 _1995 1,2 Trichlorofluoromethane (Freon 11) EPA 524,2_4.1_1995 Vinyl chi orid e EPA 524.2_4.1_1995 1,2 Xylene (total) EPA 524.2_4.1 _1995 1,2 4,4'-DDD EPA 525.2_2_1995 4,4'-DDE EPA 525.2_2_1995 4,4'-DDT EPA 525.2_2_1995 Acenaphthylene EPA 525.2_2_1995 Alachlor EPA 525.2_2_1995 Aldrin EPA 525.2_2_1995 Ametryn EPA 525.2_2_1995 Anthracene EPA 525.2_2_1995 1 Atrazine EPA 525.2_2_1995 1,2 Benzo(a)anthracene EPA 525.2_2_1995 1 Benzo(a)pyrene EPA 525.2_2_1995 1,2 Benzo(g, h,i)perylene EPA 525.2_2_1995 Benzo(k)fluoranthene EPA 525.2_2_1995 Benzo[b)fluoranthene EPA 525.2_2_1995 bis(2-Ethylhexyl) phthalate (DEHP) EPA 525.2_2_1995 Bromacil EPA 525.2_2_1995 Butachlor EPA 525.2_2_1995 Butyl benzyl phthalate EPA 525.2_2_1995 Butylate EPA 525.2_2_1995 Chlorobenzilate EPA 525.2_2_1995 Chlorcneb EPA 525.2_2_1995 Chloropropham EPA 525.2_2_1995 Chlorothalonil EPA 525.2_2_1995 Chlorpyrifos EPA 525.2_2_1995 Chrysene EPA 525.2_2_1995 cis-Permethrin EPA 525.2_2_1995 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 111912021 Page 6 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1/1 B/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Drinking Water Cyanazine EPA 525.2_2_1995 Cycloate EPA 525.2_2_1995 Dacthal (OCPA) EPA 525.2_2_1995 1 Di(2-thylhexyl)adipate EPA 525.2_2_1995 1,2 Di(2-thylhexyl)phlhalate EPA 525,2_2_1995 1,2 Dibenz(a,h) anthracene EPA 525.2_2_1995 1 Dieldrin EPA 525.2_2_1995 Diethyl phthalate EPA 525.2_2_1995 Dimethyl phthalate EPA 525.2_2_1995 Di-n-butyl phthalate EPA 525.2_2_1995 Diphenamid EPA 525.2_2_1995 Endosulfan I EPA 525.2_2_1995 Endosulfan II EPA 525.2_2_1995 Endosulfan sulfate EPA 525.2_2_1995 Endrin EPA 525.2_2_1995 1,2 Endrin aldehyde EPA 525.2_2_1995 EPTC (Eptam, s-ethyl-dipropyl thio cartlamate) EPA 525.2_2_1995 Ethoprop EPA 525.2_2_1995 Etridiazole EPA 525.2_2_1995 Fenarimol EPA 525.2_2_1995 Fluoranthene EPA 525.2_2_1995 Fluorene EPA 525.2_2_1995 gamma-BHC {Lindane, gamma-Hexachlorocyclohexane) EPA 525.2_2_1995 1,2 Heptachlor EPA 525.2_2_1995 1,2 HeptachIor epoxide EPA 525.2_2_1995 1,2 Hexachloroben zene EPA 525.2_2_1995 1,2 Hexachlorocyclopen tad iene EPA 525.2_2_1995 1,2 Hexazinone EPA 525.2_2_1995 lndeno(1,2,3-cd) pyrene EPA 525.2_2_1995 Methoxychlor EPA 525.2_2_1995 1,2 Metolachlor EPA 525.2_2_1995 1 Metribuzin EPA 525.2_2_1995 Mevinphos EPA 525.2_2_1995 MGK-264 EPA 525.2_2_1995 Molinate EPA 525.2_2_1995 Napropamide EPA 525.2_2_1995 Norflurazon EPA 525.2_2_1995 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1119/2021 Page 7 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 111 B/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Drinking Water Pebulate EPA 525.2_2_1995 Pentachlorophenol EPA 525.2_2_1995 1,2 Phenanthrene EPA 525.2_2_1995 Prometryn EPA 525.2__2_1995 Pronarnide (Kerb) EPA 525.2_2_1995 Propachlor (Ramrod) EPA 525.2_2_1995 Propazine EPA 525.2_2_1995 Pyrene EPA 525.2_2_1995 Simazine EPA 525 2_2_1995 1,2 Simetryn EPA 525.2_2_1995 Terbacil EPA 525.2_2_1995 Terbutryn EPA 525.2_2_1995 trans Permethrin EPA 525,2_2_1995 Triademefon EPA 525.2_2_1995 Trifiuralin {Treflan) EPA 525.2_2_1995 Vernolate EPA 525.2_2_1995 Endothall EPA 548.1_1_1992 1,2 Total coli/E.coli - detect SM 9223 B Colilert 18 (PA)

Non-Potable Water Cyanide, Total ASTM D7511-12 3,9 n-Hexane Extractable Material (O&G) EPA 1664A_1_1999 Turbidity EPA 1ao.1_2_1993 Chromium, Hexavalent EPA 218,6_3.3_1994 Chloride EPA 300.0_2.1 _1993 Fluoride EPA 300.0_2.1_1993 Nitrate EPA 300.0_2,1 _1993 Nitrate + Nitrite EPA 300.0_2.1 _1993 Nitrite EPA 300.0_2.1_1993 Orthophosphate EPA 300.0_2.1_1993 Sulfate EPA 300.0_2.1_1993 Bromate EPA 300.1 _1_1997 Bromide EPA 300.1 _1_1997 Chlorate EPA 300.1 _1_1997 Alkalinity EPA 310.2_1974 Ammonia EPA 350.1_2_1993 Nitrogen, Total Kjeldahl EPA 351.2_2_1993 Dissolved Oxygen Hach 10360 rev 1.2 Washington State Department of Ecology Lc1boratory Accreditation Unit Effective Date: 1119/2021 Page 8 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 111812022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Non-Potable Water Cyanide, Available OIA 1677 Color SM 2120 8-2011 Acidity SM 2310 8-2011 Alkalinity SM 2320 8-2011 Hardness (calc) SM 2340 8-2011 Specific Conductance SM 2510 B-2011 Salinity SM 2520 8-2011 Solids, Total SM 2540 8-2011 Solids, Total Dissolved SM 2540 C-2011 Solids, Settleable SM 2540 F-2011 Chlorine (Residual), Free SM 4500-CI G-2011 5 Chlorine (Residual), Total SM 4500-CI G-2011 5 Chlorine Dioxide SM 4500-CIO2 D-93 5 Cyanide, Weak Acid Dissociable SM 4500-CN- 1-97 pH SM 4500-H+ B-2011 Nitrate SM 4500-NO3- F-2011 Nitrate+ Nitrite SM 4500-NO3- F-2011 Nitrite SM 4500-NO3- F-2011 Orthophosphate SM 4500-P F-2011 Phosphorus, Total SM 4500-P F-2011 Sulfide SM 4500-S2- F-2011 9 Sulfite SM 4500-S03- 8-2011 Biochemical Oxygen Demand (BOD) SM 5210 B-2011 Chemical Oxygen Demand (COD) SM 5220 D-2011 Total Organic Carbon SM 5310 B-2011 Solids, Total Suspended USGS 1-3765-85 Aluminum EPA 200.7_4.4_1994 Antimony EPA 200.7_4.4_1994 Arsenic EPA 200.7_4.4_1994 Barium EPA 200.7_4.4_1 994 Beryllium EPA 200.7_4.4_1 994 Boron EPA 200,7_4.4_1 994 Cadmium EPA 200.7_4.4_1994 Calcium EPA 200 7_4.4_1994 Chromium EPA 200.7_4.4_1994 Cobalt EPA 200.7_4.4_1994 Copper EPA 200.7_4.4_1994 Washington Stc,te Department of Ecology Laboratory Accreditation Unit Effective Date: 1119/2021 Page 9 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1/18/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Non-Potable Water Hardness, Total (as CaCOJ) EPA 200.7_4.4_1994 3 Iron EPA 200.7_4.4_1994 Lead EPA 200.7_4.4_1994 Magnesium EPA 200.7_4.4_1994 Manganese EPA 200.7_4.4_1994 Molybdenum EPA 200.7_4.4_1994 Nickel EPA 200.7_4.4_1994 Phosphorus EPA 200.7_4.4_ 1994 Potassium EPA 200.7_4.4_1994 Selenium EPA 200 7_4.4_1994 Silica EPA 200.7_4.4_1994 Silver EPA 200. 7_4.4_1994 Sodium EPA 200.7_4.4_1994 Strontium EPA 200.7_4.4_1994 Thallium EPA 200.7_4.4_1994 Tin EPA 200.7_4.4_1994 Titanium EPA 200.7_4.4_1994 Zinc EPA 200.7_4.4_1994 Aluminum EPA 200.8_5.4_1994 Antimony EPA 200.B_S.4_1994 Arsenic EPA 200.8_5.4_1994 Barium EPA 200.8_5.4_1994 Beryllium EPA 200.8_5.4_1994 Cadmium EPA 200.8_5.4_1994 Chromium EPA 200.8_5.4_1994 Cobalt EPA 200.8_5.4_1994 Copper EPA 200.8_5.4_1994 Lead EPA 200.8_5.4_1994 Manganese EPA 200.8_5.4_1994 Molybdenum EPA 200.8_5.4_1994 Nickel EPA 200.8_5.4_1994 Selenium EPA 200.8_5.4_1994 Silver EPA 200.8_5.4_1994 Strontium EPA 200.8_5.4_1994 Thallium EPA 200.8_5.4_1994 Thorium EPA 200.8_5.4_1994 Tin EPA 200.8_5.4_1994 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1/1912021 Page 10 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1/18/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Non-Potable Water Titanium EPA 200.8_5.4_1994 Total Uranium EPA 200.8_5.4_1994 Vanadium EPA 200.8_5.4_1994 Zinc EPA 200.8_5.4_1994 Mercury EPA 245.1_3_1994 4,4'-DDD EPA 608.3 14 4,4'-DDE EPA 608.3 14 4,4'-DDT EPA 608.3 14 Alachlor EPA 608.3 14 Aldrin EPA 608.3 14 alp ha-BH C(alpha-Hexachl orocyc loh ex ane) EPA 608.3 14 alpha-Chlordane EPA 608.3 14 Aroclor-1016 (PCB-1016) EPA 608.3 14 Aroclor-1221 (PCB-1221) EPA 608.3 14 Aroclor-1232 (PCB-1232) EPA 60B.3 14 Aroclor-1242 (PCB-1242) EPA 60B.3 14 Aroclor-1248 (PCB-1248) EPA 608.3 14 Aroclor-1254 (PCB-1254) EPA 608,3 14 Aroclor-1260 (PCB-1260) EPA608.3 14 Atrazine EPA 608.3 14 beta-SH C (bela-Hexachlorocyclohexane) EPA 608,3 14 Chlordane (tech.) EPA 608.3 14 delta-BHC EPA 608.3 14 Dieldrin EPA 608.3 14 Endosulfan I EPA 608.3 14 Endosulfan 11 EPA 608.3 14 Endosulfan sulfate EPA 608.3 14 Endrin EPA 608.3 14 Endrin aldehyde EPA 608.3 14 gamma-BHC (Lindane, gamma-Hexachlorocyclohexane) EPA 608.3 14 gamma-Chlordane EPA 608.3 14 Heplachlor EPA 608.3 14 Hepta ch lor epo xide EPA 608.3 14 Methoxychlor EPA 608.3 14 Metribuzin EPA 608.3 14 Propachlor (Ramrcd) EPA 608.3 14 Simazine EPA 608.3 14 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1/19/2021 Page 11 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1/18/2022 C567-21

Edge Analytical, Incorporated Matrix/An alyte Method Notes Non-Potable Water Toxaphene (Chlorinated camphene) EPA 608.3 14 Trifluralin (Treflan) EPA 608.3 14 2,4,5-T EPA 615 2,4-D EPA 615 2,4-DB EPA 615 Dalapon EPA 615 Dicamba EPA 615 Dichloroprop (Dichlorprop) EPA 615 Dinoseb (2-sec-butyl-4,6-dinitrophenol, DNBP) EPA 615 MCPA EPA 615 3,8 MCPP EPA 615 3,8 Silvex (2,4,5-TP) EPA 615 Trichlopyr EPA 615 Diesel range organics (DRO) WDOE NWTPH-Dx_(1997) 4,17,18 Gasoline range organics (GRO) WDOE NWTPH-Gx_(1997) 4,17,19 1, 1, 1,2-Tetrachloroethane EPA 624.1 13 1,1, 1-Trichloroethane EPA 624.1 13 1,1,2,2-Tetrachloroethane EPA 624.1 13 1,1,2-Trichloroethane EPA 624.1 13 1,1-Dichloroethane EPA 624.1 13 1,1-Dichloroethylene EPA 624.1 13 1,2,3-Trichlorobenzene EPA 624.1 13 1,2-Dibromoethane (EDB, Ethylene dibromide) EPA 624,1 13 1,2-Dichlorobenzene EPA 624.1 13 1,2-Dichloroethane (Ethylene dichloride) EPA 624.1 13 1,2-Dichloropropane EPA624.1 13 1,3-Dichlorobenzene EPA 624.1 13 1,4-Dichlorobenzene EPA 624.1 13 2-Butanone (Methyl ethyl ketone, MEK) EPA 624.1 13 2-Chloro-1,3-butadiene (Chloroprene) EPA 624.1 13 2-Chloroethyl vinyl ether EPA 624.1 13 2-Picoline (2-Methylpyridine) EPA 624.1 13 4-lsopropyltoluene (p-Cyrnene) EPA624.1 13 Acetone EPA 624.1 13 Acetonitrile EPA 624.1 13 Ac:rolein (Propenal) EPA 624.1 13 Acrylonitrile EPA 624.1 13 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1/19/2021 Page 12 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires 1118/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Non-Potable Water Benzene EPA 624.1 13 Bromodichloromethane EPA 624.1 13 Bromoforrn EPA 624.1 13 Carbon tetrachloride EPA 624.1 13 Chlorobenzene EPA 624.1 13 Chlorodibromomethane EPA624.1 13 Chloroethane (Ethyl chloride) EPA624.1 13 Chloroform EPA624.1 13 cis-1,3-Dichloropropene EPA624,1 13 Dibromochloropropane EPA 624.1 13 Dichloromethane (DCM, Methylene chloride) EPA624,1 13 Diethyl ether EPA 624.1 13 Epichlorohydrin (1-Chloro-2,3-epoxypropane) EPA 624.1 13 Ethylbenzene EPA 624.1 13 MethyI bromide (Bromometh ane) EPA 624.1 13 Methyl chloride (Chloromethane) EPA 624.1 13 Methyl tert-butyl ether (MTBE) EPA 624.1 13 Methylene chloride (Dichloromethane) EPA 624.1 13 p-Dioxane EPA 624,1 13 Styrene EPA 624.1 13 Tetrachloroethylene (Perchloroethylene) EPA 624.1 13 Toluene EPA 624.1 13 trans-1,2-Dichloroethylene EPA 624.1 13 trans-1,J-Dichloropropylene EPA 624.1 13 Trichloroethene (Trichloroethylene) EPA 624.1 13 Trichlorofluoromethane (Freon 11) EPA 624.1 13 Vinyl chloride EPA 624.1 13 1,2, 4-Tnchloroben zene EPA 625.1 15 1,2-Diphenylhydrazine EPA 625.1 15 2,3,6-Trichlorophenol (4C) EPA 625.1 15 2,4, 5-Trichlorophenol EPA 625.1 15 2,4, 6-Trichlorophenol EPA 625.1 15 2,4-Dich lorophen ol EPA 625.1 15 2, 4-Di methylph en ol EPA 625,1 15 2,4-Dinitrophenol EPA 625.1 15 2,4-Dinilfotoluene (2,4-DNT) EPA 625.1 15 2,6-Dinitrotoluene (2,6-DNT) EPA 625.1 15 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1/19/2021 Page 13 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1/18/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Non-Potable Water 2-Chloronaphthalene EPA 625.1 15 2-Chlorophenol EPA 625.1 15 2-Methylnaphthalene EPA 625.1 15 2-Nitrophenol EPA 625.1 15 3,3'-Dichlorobenzidine EPA 625.1 15 3-Methylcholanthrene EPA 625.1 15 4,4'-DDD EPA 625.1 15 4,4'-DDE EPA 625.1 15 4,4'-DDT EPA 625.1 15 4,6-Dinitro-2-methylphenol EPA 625.1 15 4-Bromophenyl phenyl ether (BDE-3) EPA 625.1 15 4-Chloro-3-methylphenol EPA 625.1 15 4-Chlorophenol EPA 625.1 15 4-Chlorophenyl phenylether EPA 625.1 15 4-Nitrophenol EPA 625.1 15 Acenaphthene EPA 625.1 15 Acenaphthylene EPA 625.1 15 Aldrin EPA 625.1 15 alpha-BH C (alpha-Hexachlorocyclohexane) EPA 625.1 15 alpha-Terpineol EPA 625.1 15 Anthracene EPA 625.1 15 Benzidine EPA 625.1 15 Benzo(a)anthracen e EPA 625.1 15 Benzo(a)pyrene EPA 625.1 15 Benzo(g,h ,i)perylene EPA 625.1 15 BenzoU)~uoranthen e EPA 625.1 15 Benzo(k)fluoranthene EPA 625.1 15 Benzo(r,s,t)pentaph ene EPA 625.1 15 Benzo[b]fluoranthene EPA 625.1 15 Benzoic acid EPA 625.1 15 beta-BH C (beta-Hexachlorocyclohexane) EPA 625.1 15 Biphenyl EPA 625.1 15 bis(2-Chloroethoxy) melhane EPA 625.1 15 bis(2-Chloroethyl) ether EPA 625.1 15 bis(2-Chloroisopropyl) ether EPA 625.1 15 bis(2-Ethylhexyl) phthalate (DEHP) EPA 625.1 15 Butyl benzyl phthalate EPA 625,1 15 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1/19/2021 Page 14 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1118/2022 C567-21

Edge Analytical, Incorporated MatrixJAnalyte Method Notes Non-Potable Water Carbazole EPA 625.1 15 Chrysene EPA 625.1 15 delta-BHC EPA 625.1 15 Di(2-ethylhexyl)adipale EPA 625,1 15 Dibenz(a,h) acridine EPA 625.1 15 Dibenz(a,h) anthracene EPA 625.1 15 Dibenz(a,j) acridine EPA 625.1 15 Diben zo(a, e} py rene EPA 625.1 15 Dibenzo(a,h) pyrene EPA 625.1 15 Diben zofu ran EPA 625.1 15 Dieldrin EPA 625.1 15 Diethyl phthalate EPA 625.1 15 Dimethyl phthalate EPA 625.1 15 Di-n-butyl phthalate EPA 625.1 15 Di-n-octyl phthalate EPA 625.1 15 Endosulfan I EPA 625.1 15 Endosulfan 11 EPA 625.1 15 Endosulfan sulfate EPA 625.1 15 Endrin EPA 625.1 15 Fluoranthene EPA 625.1 15 Fluorene EPA 625.1 15 gamma-BHC (Lindane, gamma-Hexachlorocyclohexane) EPA 625.1 15 Heptachlor EPA 625.1 15 Heptachlor epoxide EPA 625.1 15 Hexachlorobenzene EPA 625.1 15 Hexachi orobu tadiene EPA 625.1 15 Hexachlorocyclopentadiene EPA 625.1 15 Hexachloroethane EPA 625.1 15 lndeno(1,2,3-cd) pyrene EPA 625.1 15 lsophorone EPA 625.1 15 Methoxychlor EPA 625.1 15 Naphthalene EPA 625.1 15 n-Docosane EPA 625.1 15 n-Dodecane EPA 625.1 15 n-Eicosane EPA 625,1 15 n-Hexadecane EPA 6251 15 Nitrobenzene EPA 625.1 15 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1/19/2021 Page 15 of 31 Scope of Accreditation Report for Eclge Analytical, lncorporatecl Scope Expires: 1/1 B/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Non-Potable Water n-Nitrosodimethy/amine EPA 625.1 15 N-N itroso-di-n-propyIamine EPA 625.1 15 n-N itrosodiphenylamine EPA 625.1 15 n-Octadecane EPA 625.1 15 n-Tetrad ecane EPA 625.1 15 Pentachloroethane EPA 625.1 15 Pentachlorophenol EPA 625.1 15 Perylene EPA 625.1 15 Phenanthrene EPA 625.1 15 Phenol EPA 625,1 15 Pyrene EPA 625.1 15 Pyridine EPA 625.1 15 lgnitability ASTM D93-02 Solid and Chemical Materials Ammonia EPA 350.1_2_1993 Nitrogen, Total Kjeldahl EPA 351.2_2_1993 9 Sulfide, Acid-Soluble EPA 9034_1996 Aluminum EPA 6010D_(7I14) 9, 1()

Antimony EPA 60100_(7/14) 9,10 Arsenic EPA 60100_(7/14) 10 Barium EPA 60100_(7/14) 9,10 Beryllium EPA 6010D_(?/14) 9,10 Boron EPA 6010D_(7l14) 10 Cadmium EPA 6010D_(7/14) 10 Calcium EPA 6010D_(7I14) 10 Chromium EPA 60100_(7/14) 9,10 Cobalt EPA 60100_(7/14) 9,10 Copper EPA 60100_(7/14) 10 Iron EPA 60100_(7/14) 9,10 Lead EPA 60100_(7114) 9,10 Magnesium EPA 60100_(7114) 9,10 Manganese EPA 60100_(7114) 9,10 Molybdenum EPA 60100_(7/14) 10 Nickel EPA 60100_(7/14) 9,10 Phosphorus, Total EPA 60100_(7114) 10 Potassium EPA 60100_(7114) 10 Selenium EPA 6010O_(7l14) 9,10 Washington State Department of Ecology Laboratory Accreditation Unit Effective Dale: 1119/2021 Page16of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires 1118/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Solid and Chemical Materials Silver EPA 60100_(7/14) 9,10 Sodium EPA 60100_(7/14) 10 Strontium EPA 60100_(7/14) 9,10 Thallium EPA 60100_(7/14) 10 Tin EPA 60100_(7/14) 10 Titanium EPA 6010D_(7/14) 10 Vanadium EPA 6010D_(7/14) 9,10 Zinc EPA 60100_(7/14) 9,10 Aluminum EPA 60208_(7/14) 9,10 Antimony EPA 60208_(7/14) 10 Arsenic EPA 60208_(7/14) 9,10 Barium EPA 60208_(7/14) 9,10 Beryllium EPA 60208_(7/14) 9,10 Cadmium EPA 60208_(7/14) 10 Chromium EPA 60208_(7/14) 9,10 Cobalt EPA 60208_(7/14) 9,10 Copper EPA 60208_(7/14) 9,10 Lead EPA 60208_(7/14) 9,10 Manganese EPA 60208_(7/14) 9,10 Molybdenum EPA 60208_(7/14) 9,10 Nickel EPA 60208_(7/14) 9,10 Selenium EPA 60208_(7/14) 9,10 Silver EPA 60208_(7/14) 10 Strontium EPA 60208_(7/14) 9,10 Thallium EPA 60208_(7/14) 10 Titanium EPA 60208_(7/14) 10 Vanadium EPA 60208_(7/14) 9,10 Zinc EPA 60208_(7/14) 9,10 Mercury EPA 7470A_1_1994 Mercury EPA 74718_(1/98)

Aroclor-1016 (PCB-1016) EPA 600/4-81-045 Aroclor-1221 (PCB-1221) EPA 600/4-81-045 Aroclor-1232 (PCB-1232) EPA 600/4-81-045 Aroclor-1242 (PCB-1242) EPA 600/4-81--045 Aroclor-1248 (PCB-1248) EPA 600/4-81-045 Aroclor-1254 (PCB-1254) EPA 600/4-81-045 Aroclor-1260 (PCB-1260) EPA 600/4-81-045 Washington State Department of Ecology Laborato,y Accreditation Unit Effective Date: 1119/2021 Page 17 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1/18/2022 C567-21

Edge Analytical, Incorporated Matrix/An alyte Method Notes Solid and Chemical Materials 4,4'-DDD EPA 80818_(2/07) 4,4'-DDE EPA 80818_(2107) 4,4'-DDT EPA 80818_(2/07)

Aldrin EPA 80818_(2/07) alph a-BHG(alph a-Hexachlorocyclohexane) EPA 80B18_(2/07) alpha-Chlordane EPA 8081 B_(2/07) beta-8HC (be ta-Hexac hlorocyclohexan e) EPA 80818_(2107)

Captafol EPA 80818_(2107)

Ch lordane (tech.) EPA 80818_(2/07)

Chlorobenzilate EPA 80818_(2/07)

Chloroneb EPA 80818_(2/07)

Chloropropylate EPA 80B18_(2107)

Chlo rothaIonii EPA 80818_(2107)

Dacthal (DCPA) EPA 8081 B_(2/07) delta-BHC EPA 80818_(2107)

Diallate EPA 8081 B_(2/07)

Dichlone EPA 80819_(2/07)

Dicofol EPA 8081 B_(2/07)

Dieldrin EPA 80818_(2/07)

Endosulfan I EPA 80819_(2/07)

Endosulfan II EPA 80818_(2107)

Endosulfan sulfate EPA 80818_(2107)

Endrin EPA 80818_(2/07)

Endrin aldehyde EPA 80818_(2/07)

Endrin ketone EPA 80818_(2/07)

Elridiazole EPA 80818_(2/07) gamma-BHC (Lindane, gamma-Hexachlorocyclohexane) EPA 80818_(2/07) gamma-Chlordane EPA 8081 B_(2/07)

Halowax-1000 EPA 80818_(2107)

Halowax-1001 EPA 80818_(2/07)

Halowax-1013 EPA 80819_(2/07)

Halowax-1014 EPA 80818_(2/07)

Halowax-1051 EPA 80818_(2/07)

Halowax-1 099 EPA 80818_(2/07)

Heptachlor EPA 80818_(2/07)

Heptachlor epoxide EPA 8081 B_(2/07) lsodrin EPA 80818_(2107)

Washington St.ite Department of Ecology Lc1boratory Accreditation Unit Effective Date: 1/19/2021 Page18of 31 Scope of Accreditation Report for Edge AnalY1ical, Incorporated Scope Expires: 1/18/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Solid and Chemical Materials Metho xych lor EPA 80818_(2107)

Mirex EPA 80816_(2107)

Nitrofen EPA 80818_(2107)

Permethrin (total) EPA 80818_(2107)

Perthane EPA 80818_(2/07)

Strobane EPA 80818_(2/07)

Toxaphene (Chlorinated camphene) EPA 80818_(2107) trans-Nonachlor EPA 80818_(2107)

Aroclor-1016 (PCB-1016) EPA 8082A_(2/07)

Aroclor-1221 (PCB-1221) EPA 8082A_(2/07)

Aroclor-1232 (PCB-1232) EPA 8082A_(2/07)

Aroclor-1242 (PCB-1242) EPA 8082A_(2/07)

Aroclor-1248 (PCB-1248) EPA 8082A_(2107)

Aroclor-1254 (PCB-1254) EPA 8082A_(2107)

Aroclor-1260 (PCB-1260) EPA 8082A_(2/07) 2,4,5-T EPA 8151 A_(1198) 2,4-D EPA 8151 A_(1198) 2,4-D8 EPA 8151 A_(1/98) 3,5-Dichlorobenzoic acid EPA 8151A_(1/98) 4-Nitrophencl EPA 8151A_(1/98) 5-Hydroxydicamba EPA 8151 A_(1198)

Acifluorfen EPA 8151A_(1198)

Bentazon EPA 8151A_(1198)

Chloramben EPA 8151A_(1/98}

Dacthal (DCPA} EPA 8151 A_(1/98)

Dalapon EPA 8151A_(1/98)

DCPA di acid degradate EPA 8151A_(1198)

Dicamba EPA 8151A_(1/98)

Dichloroprop {Dichlorprop) EPA 8151A_(1198)

Dinoseb {2-sec-butyl-4,6-dinitrophenol, DNBP) EPA 8151A_{1198)

MCPA EPA 8151A_(1/98) 8 MCPP EPA 8151A_(1198) 8 Pentachlorophenol EPA 8151A_(1198)

Picloram EPA 8151A_(1/98)

Silvex (2,4,5-TP) EPA 8151A_(1/98)

Trichlopyr EPA 8151A_(1/98)

Diesel range organics (ORO) WDOE NWTPH-Dx_(1997) 4 Washington State Department of Ecology Laborato,y Accreditation Unit Effective Date: 111912021 Page 19 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1/1 B/2022 C567-21

Edge Analytical, Incorporated Matrix/An alyte Method Notes Solid and Chemical Materials Gasoline range organics (GRO) WDOE NWTPH-Gx_/1997) 4 Azinphos-methyl (Guthion) EPA 81418_2_(2/07) 7 80Is!ar (Sulprofos) EPA 81418_2_(2/07) 7 Chlorpyrifos EPA B141 B_2_(2/07) 7 Coumaphos EPA 8141 B_2_(2/07) 7 Demeton EPA 81418_2_(2/07) 7 Diazinon EPA 8141 B_2_{2/07) 7 Dichlorovos {DDVP, Dichlorvos) EPA 8141 B_2_(2l07) 7 Dimethoate EPA 81418_2_(2/07) 7 Disulfoton EPA 81418_2_(2/07) 7 EPN EPA 81418_2_(2107) 7 Ethoprop EPA 81418_2_(2107) 7 Fensulfolhion EPA 8141 B_2_(2107) 7 Fenthion EPA 8141 B_2_(2107) 7 Malathion EPA 8141 B_2_(2/07) 7 Merphos EPA 81418_2_(2107) 7 Methyl parathion (Parathion, methyl) EPA 81416_2_(2/07) 7 Mevinphos EPA 81418_2_(2/07) 7 Monocrotophos EPA 81418_2_(2/07) 7 Parathion, ethyl EPA 8141 B_2_(2/07) 7 Phorate EPA 8141 B_2_(2/07) 7 Ronne! EPA 8141 B_2_(2/07) 7 Sulfotepp EPA 81419_2_(2107) 7 Tetrachlorvinphos (Stirophos, Gardona) EPA 81418_2_(2/07) 7 Tokuthion (Prothiophos) EPA 81418_2_(2107) 7 Tri chloron ate EPA 81418_2_(2/07) 7 1, 1, 1,2-Tetrachloroethane EPA 8260D_4_(6/18) 1, 1, 1-Trichloro-2,2, 2-trifiuoroethane EPA B260D_4_(6118) 1, 1, 1-Trichloro-2-propanone EPA 8260D_4_(6118) 1, 1, 1-Trichloroethane EPA 8260D_4_(6118) 1, 1,2,2-Tetrachloroethane EPA 8260D_4_(6118) 1, 1, 2-Trichloro-1,2,2-trifluoroethane (Freon 113) EPA 8260D_4_(6118) 1, 1, 2-Trichloroelhane EPA 8260D_4_(6118) 1, 1,2-Trichlorofluoroelhane EPA 8260D_4_(6/18) 1, 1-Dichloro-1-fiuoroethane EPA 8260D_4_(6/18) 1, 1-Dichloroethane EPA 8260D_4_(6/18) 1, 1-Dichloroethylene EPA 8260D_4_(6/18)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Dale: 1/1912021 Page 20 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1118/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Solid and Chemical Materials 1, 1-Dichloropropene EPA 8260D_4_(6118) 1,2,3,4-Diepoxybutane EPA 8260D_4_(6118) 1,2, 3-Trichlorobenzene EPA 82600_4_(6118) 1,2,3-Trichloropropane EPA 8260D_4_(6/18) 11 1,2,3-Trimethylbenzene EPA 8260D_4_(6/18) 1,2,4-Trichlorotienzene EPA 82600_4_(6118) 1,2,4-Trimethylbenzene EPA 8260D_4_(6118) 1, 2-Dibromo-3-chloropropane (DBCP) EPA 8260D_4_(6/18) 11 1,2-Dibromoethane (EDB, Ethylene dibromide) EPA 8260D_4_(6/18) 11 1,2-0ichloro-1,1,2,2-letrafluoroelhane (Freon 114) EPA 8260D_4_(6118) 1,2-0ichloro-1,1,2-trifiuoroethane EPA 8260D_4_(6118) 1,2-Dichlorobenzene EPA 8260D_4_(6118) 1,2-0ichlornethane (Ethylene dichloride) EPA 8260D_4_(6/18) 1,2-Dichloropropane EPA 82600_4_(6/18) 1, 2-Dimethoxyethane EPA 8260D_4_(6/18) 1,3, 5-Trimethylbenzene EPA 8260D_4_(6/18) 1,3-Butanediol EPA 82600_4_(6/18) 1,3-Dichloro-2-propanol EPA 82600_4_(6118) 1,3-Dichlorobenzene EPA 8260D_4_(6/18) 1,3-Dichloropropane EPA 82600_4_(6/18) 1,3-Dichloropropene EPA 8260D_4_(6/18) 1,4-Butanediol EPA 8260D_4_(6/18) 1,4-Dichloro-2-butene EPA 8260D_4_(6/18) 1,4-Dichlorobenzene EPA 82600_4_(6/18) 1,4-Dilluorobenzene EPA 8260D_4_(6/1 B) 1,4-Dioxane (1,4- Diethyleneoxide) EPA 8260D_4_(6/18) 11 1-Butene EPA 8260D_4_(6/18) 1-Chloro-1,2,2-trifluoroethane (Freon 133) EPA 8260D_4_(6118) 1-Chlorabulane EPA 8260D_4_(6/18) 1-Heptene EPA 8260D_4_(6/18) 1-Hexene EPA 8260D_4_(6/18) 1-Methy1-2-n-propylbenzene EPA 8260D_4_(6/18) 1-Propene EPA 82600_4_(6118) 2, 2,4-Tri methylpentane EPA 82600_4_(6/18) 2,2-Dichloro-1,1, 1-trifluoroethane (Freon 123) EPA 8260D_4_(6118) 2,2-Dichloropropane EPA 82600_4_(6/18) 2,2-Dimethylbutane EPA 8260D_4_(6/18)

Washington State Department of Ecology Laboratory Accreditation Unil Effective Date : 1/1912021 Page 21 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 111812022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Solid and Chemical Materials 2, 2'-Oxybis(1-chloro propane) EPA 8260D_4_(6/18) 2,3,4-Trimethylpentane EPA 8260D_4_(6118) 2,3-Dichloropropene EPA 8260D_4_(6118) 2,3-Dimethylbutane EPA 8260D_4_(6118) 2,3-Dimethylpentane EPA 8260D_4_(6118) 2,4-Dimethylpentane EPA 82600_4_(6/18) 2-Brom oft uorobenzen e EPA 8260D_4_(6118) 2-Butanone (Methyl ethyl ketone, MEK) EPA 8260D_4_(6118) 2-Chloro-2-methybutane (tert-Amyl chloride) EPA 82600_4_(6/18) 2-Chloroethanol EPA 8260D_4_(6118) 2-Chloroethyl vinyl ether EPA 8260D_4_(6/18) 11 2-Chlorotoluene EPA 8260D_4_(6/18) 2-Ethylhexanol (2-Ethyl-1-hexanol) EPA 82600_4_(6/18) 2-Ethyltoluene EPA 82600_4_(6/18) 2-Hexanone EPA 8260D_4_(6/18) 2-Hexene EPA 8260D_4_(6118) 2-Hydroxypropionitrile EPA 82600_4_(6118) 2-Methoxyethanol (Methyl cellosolve) EPA 8260D_4_(6118) 2-Methyl-1,3-dioxolane EPA 8260D_4_(6/18) 2-Methyl-2-Butene EPA 8260D_4_(6118) 2-Methylaniline (o-Toluidine) EPA 8260D_4_(6118) 2-Methylbutadiene (lsoprene) EPA 8260D_4_(6118) 2-Methylbulane (lsopentane) EPA B260D_4_(6118) 2-Methylheptane EPA 8260D_4_(6118) 2-Methylhexane EPA 8260D_4_(6118) 2-Methylpentane (lsohexane) EPA 8260D_4_{6118) 2-methylpropane (lsobutane) EPA 8260D_4_(6/18) 2-Nitropropane EPA 8260D_4_(6/18) 2-Penlanone EPA 8260D_4_(6/18) 2-Picoline (2-Methylpyridine) EPA 8260D_4_(6/18) 3-B ram ofl uorobenzene EPA 8260D_4_(6118) 3-Butene-1-ol EPA 8260D_4_(611 B) 3-Chlompropionitrile EPA 8260D_4_(6/18) 3-Ethyltoluene EPA 8260D_4_(6118) 3-Methyl-1-Butene EPA 8260D_4_(6118) 3-Methylheplane EPA 82600_4_(6/18) 3-Methylhexane EPA 8260D_4_(6/18)

Washington State Cepartment of Ecology Laboratory Accreditation Unit Effective Date: 111912021 Page 22 of 31 Scope of Accreditation Report for Edge Analyticc1I, Incorporated Scope Expires: 111812022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Solid and Chemical Materials 3-Methylpentane EPA 8260D_4_(6118) 4-8rom ofl uorobenzene EPA 8260D_4_(6118) 4--Chlorololuene EPA 8260D_4_(6/18) 4-Ethyltoluene EPA 82600_4_(6/18) 4-lsopropyltoluene (~Cymene) EPA 8260D_4_(6/18) 4-Methyl-1-Pentene EPA 82600_4_(6/18) 4-Methyl-2-penlanone (MIBK) EPA 8260D_4_(6118) 4-Methylaniline (p-Toluidine) EPA 8260D_4_(6118)

Acetamide EPA 8260D_4_(6/18)

Acetone EPA 8260D_4_(6/18)

Acetylene EPA 8260D_4_(6118)

Acrolein (Propenal) EPA 82600_4_(6/18)

Acrylamide EPA 82600_4_(6118)

Acrylic acid EPA 82600_4_(6/18)

Acrylon itriIe EPA 8260D_4_(6118) 11 Adsorbable Organic Halides (AOX) EPA 8260D_4_(6/18)

Allyl alcohol EPA 8260D_4_(6118)

Allyl chloride (3-Chloropropene) EPA 8260D_4_(6118) al pha-Methylstyrene EPA 8260D_4_(6/18)

Benzene EPA 82600_4_(6/18) 11 beta-Propiolactone EPA 82600_4_(6118) bis(2-Chloroethyl) sulfide EPA 82600_4_(6/18) bis(ChIaramethyl)ether EPA 8260D_4_(6118)

Bromoacetone EPA 8260D_4_(6118)

Bromobenzene EPA 8260D_4_(6118)

Brom och lorometh an e EPA 8260D_4_(6/18)

Bromodichloromethane EPA 8260D_4_(6118)

Bromoethane (Ethyl Bromide) EPA 8260D_4_(6/18)

Bromoethene EPA 8260D_4_(6/18)

Bromoform EPA 8260D_4_(6/18)

Butyl acetate EPA 82600_4_(6118)

Carbon disulfide EPA 82600_4_(6/18)

Carbon lelrachIoride EPA 82600_4_(6118)

Chloral hydrate EPA 82600_4_(6/18)

Chi oroacetonitrile EPA 82600_4_(6/18)

Chi oro benzene EPA 82600_4_(6/18)

Chlorodibromomethane EPA 82600_4_(6118)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1/19/2021 Page23of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1/1812022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Solid and Chemical Materials Chlorodifiuoromethane (Freon-22) EPA 82600_4_{6/18)

Chloroethane {Ethyl chloride) EPA 8260D_4_(6/18)

Chloroform EPA 8260D_4_(6118)

Chloromethyl methyl ether EPA 8260D_4_(6/18)

Chloropicrin EPA 82600_4_(6118)

Chloroprene (2-Chloro-1,3-butadiene) EPA 82600_4_(6/18) cis & trans-1,2-Dichloroethene EPA 82600_4_(6/18) cis-1,2-Dichloroethylene EPA 8260D_4_(6118) cis-1 ,3-Dichloropropene EPA 8260D_4_(6/18) cis-2-Butene EPA 8260D_4_(6118) cis-2-Hexene EPA 82600_4_(6118) cis-2-pentene EPA 82600_4_(6/18)

Cycloate EPA 8260D_4_(6/18)

Cyclohexanol EPA 8260D_4_(6118)

Cyclhexanone EPA 8260D_4_(6/18)

Cyclopentane EPA 8260D_4_(6/18)

Cyclopentene EPA 82600_4_(6/18)

Decanal EPA 82600_4_(6/18)

Dibrom oc hi oropropane EPA 8260D_4_(6/18)

Dibro mofluoromethane EPA 82600_4_(6118)

Dibromomethane EPA 8260D_4_(6118)

Dichlorodifluoromethane {Freon-12) EPA 8260D_4_(6/18)

Dichlorofluoromethane (Freon 21) EPA 8260D_4_(6118)

Dichlorotetrafluoroethane EPA 82600_4_(6118)

Dicyclopenladiene EPA 82600_4_(6118)

Diethyl ether EPA 82600_4_(6118)

Diethylamine EPA 8260D_4_(6118)

Diethylene glycol EPA 8260D_4_(6118)

Dimethyl disulfide EPA 8260D_4_(6/18)

Dimethyl sulfoxide EPA 82600_4_(6/18)

Epichlorohydrin (1-Chloro-2, 3-epoxypropane) EPA 8260D_4_(6l18)

Ethane EPA 8260D_4_(6118)

Elhene EPA 8260D_4_(6118)

Ethyl acetate EPA 8260D_4_(6/18)

Ethy! acrylate EPA 8260D_4_(6118)

Ethyl methacrylate EPA 8260D_4_(6/18)

Ethylbenzene EPA 82600_4_(6118) 11 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1/1912021 Page 24 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 111 B/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Solid and Chemical Materials Ethylene glycol EPA 8260D_4_(6/18)

Ethylene oxide EPA 82600_4_(6/18)

Ethylene thiourea EPA 8260D_4_(6118)

Ethyleneimine EPA 8260D_4_(6/18)

Fluorobenzene EPA 8260D_4_(6118)

Fluoromethane (Freon 41) EPA 82600_4_(6118)

Heplanal EPA 8260D_4_(6/18)

Hexachlorobu tadi ene EPA 8260D_4_(6118)

HexachloIoethane EPA 82600_4_(6118) lodomethane {Methyl iodide) EPA 82600_4_(6118) lsopropyl acetate EPA 82600_4_(6118) lsopropyl alcohol (2-Propanol, lsopropanol) EPA 82600_4_(6/18) lsopropylbenzene EPA 82600_4_(6/18) m+p-xylene EPA 82600_4_(6/18) 11 Malononitrile EPA 82600_4_(6/18)

Methacrylonitrile EPA 8260D_4_(6/18)

Methane EPA 82600_4_(6118)

Methanol EPA 82600_4_(6118)

Methyl acrylate EPA 82600_4_(6118)

Methyl bromide (Bromomethane) EPA 82600_4_(6118)

Methyl chloride (Chloromethane) EPA 82600_4_(6/18)

Methyl formate EPA 82600_4_(6118)

Methyl methacrylate EPA 82600_4_(611 B)

Methyl tert-butyl ether (MTBE) EPA 8260D_4_(6118)

Methylcyclopentane EPA 8260D_4_(6/18)

Methylene chloride (Dichloromethane) EPA 8260D_4_(6/18) n, n-Dim ethylformamide EPA 82600_4_(6118) n-Amyl acetate EPA 82600_4_(6118) n-Amyl alcohol EPA 82600_4_(6118)

Naphthalene EPA 8260D_4_(6/18) n-Bulane EPA 8260D_4_(6/18) n-Butyl alcohol (1-Bulanol, n-Butanol) EPA 8260D_4_(6118) n-Butylbenzene EPA 8260D_4_(6118) n-ButylcycIopenta ne EPA 8260D_4_(6/1B) n-Heplane EPA 82600_4_(6118)

Nitrobenzene EPA 8260D_4_(6118) n-Nitros o-d i-n-butylamine EPA 82600_4_{6118)

Washington State Department of Ecology Laborato,y Accreditation Unit Effective Date: 1119/2021 Page 25 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires 1/18/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Solid and Chemical Materials n-Nonane EPA 82600_4_(6/18) n-Octane EPA 8260D_4_(6/18) n-Pentane EPA 8260D_4_(6/18) n-Propane EPA 8260D_4_(6118) n-Propanol (1-Propanol) EPA 82600_4_(6/18) n-Prop yla mine EPA 8260D_4_(6/18) n-Propylbenzene EPA 82600_4_(6/18) o-Xylene EPA 8260D_4_(6/18) 11 p-Diethylbenzene EPA 8260D_4_(6/18)

Pentachloroethane EPA 8260D_4_{6/18)

Pentafluorobenzene EPA 8260D_4_(6/18)

Propargyl alcohol EPA 8260D_4_(6/18)

Propyne EPA 82600_4_(6/18)

Purgeable Organic Halides EPA 8260D_4_(6/18)

Pyridine EPA 82600_4_(6/18)

Sec-Amyl Alcohol (2-Pentanol) EPA 8260D_4_(6/18) sec-Butylbenzene EPA 8260D_4_(6/18)

S-Methyl thioacetate (S-Methyl etanethioate) EPA 8260D_4_(6/18)

Styrene EPA B260D_4_(6/18) 11 tert-Amyl ethyl ether (TAEE) EPA 82600_4_(6/18) tert-Butylbenzene EPA 82600_4_(6118)

Telrachloroethylene (Perchloroethylene) EPA 8260_4_(6/18)

Tetrahydrofuran (THF) EPA 8260D_4_(6118)

Toluene EPA 8260D_4_(6I18)

Total Trihalomethanes EPA 8260D_4_(6/18)

Total Volatile Petroleum Hydrocarbons (VPH) EPA 8260D_4_(6/18) trans-t ,2-Dichloroethylene EPA 8260D_4_(6/18) trans-1,3-Dichloropropylene EPA 82600_4_(6l18) trans-1,4-Dichloro-2-butene EPA 82600_4_(6/18) trans-2-Butene EPA 82600_4_(6/18) trans-2-Hexene EPA 82600_4_(6118) trans-2-penlene EPA 8260D_4_(6/18)

TrichIoroethene (T rich loroethylene) EPA 8260D_4_(6/18)

Trichlorotluoromethane (Freon 11) EPA 82600_4_(6/18)

Triethylamine EPA 8260D_4_(6/18)

Trifluoromethane (Freon 23) EPA 8260D_4_(6/18)

Vinyl acetate EPA 8260D_4_(6/18)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1119/2021 Page 26 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1/18/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Solid and Chemical Materials Vinyl bromide EPA 8260D_4_(6/18)

Vinyl chloride EPA 8260D_4_(6/18) 11 Xylene (total) EPA 8260D_4_(6/18) 1,2,4-Trichlorobenzene EPA 8270E_6_(6/18) 1,2-Dibromo-3-chloropropane (DBCP) EPA 8270E_6_(6/18) 1,2-Dichlorobenzene EPA 8270E_6_(6/18) 1,2-Dinitrobenzene EPA 8270E_6_(6/18) 1,2-Diphenylhydrazine EPA 8270E_6_(5/18) 1,3-Dichlorobenzene EPA 8270E_6_(6/18) 1,4-Dichlorobenzene EPA 8270E_6_(6/18) 1,4-Dinitrobenzene EPA 8270E_6_(6/18) 1,4-Phenylenediamine EPA 8270E_6_(6/18) 1-Acetyl-2-thiourea EPA 8270E_6_(6/18) 2,3,4,6-Tetrachlorophenol EPA 8270E_6_(6/18) 2,4,5-Trichlorophenol EPA 8270E_6_(6/18) 2,4, 5-Trimethylaniline EPA 8270E_6_(6/18) 2,4,6-Trichlorophenol EPA 8270E_6_(6/18) 2,4-Diaminotoluene EPA 8270E_6_(6/18) 2, 4-Dichloroph en ol EPA 8270E_6_(6/18) 2, 4-Dimethylphenol EPA 8270E_6_(6/18) 2,4-Dinitrophenol EPA 8270E_6_(6/18) 2,4-Dinitrotoluene (2,4-DNT) EPA 8270E_6_(6/18) 2,6-Dichlorophenol EPA 8270E_6_(5/18) 2,6-Dinitrotoluene (2,6-DNT) EPA 8270E_6_(6/18) 2-Aminoanthraquinone EPA 8270E_6_(6/18) 2-Chloronaphthal en e EPA 8270E_6_(6/18) 2-Chlorophenol EPA 8270E_6_(6/18) 2-Cyclohexyl-4, 6-dinitrophenol EPA 8270E_6_(6/18) 2-Methylaniline (o-Toluidine) EPA 8270E_6_(6/1 B) 2-Methylnaphthalene EPA 8270E_6_(5/1 B) 2-Methylphenol (o-Cresol) EPA 8270E_6_(6/18) 2-N itrophenol EPA 8270E_6_(6/18) 3-(Chloromethyl) pyridine hydrochloride EPA 8270E_6_(6/18) 3,3'-Dichlorobenzidine EPA 8270E_6_(6l18) 3,3'-Dimethoxybenzidine EPA 8270E_6_(6/18) 3-Amino-9-ethylcarbazole EPA 827DE_6_(6/18) 3-Methylcholanthrene EPA 8270E_6_(6/1 B)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1/19/2021 Page 27 of 31 Scope of Accreditation Report for Ectge Analytical, lncorporatect Scope Expires: 1/18/2022 C567-21

Edge Analytical, Incorporated Matrix/An alyte Method Notes Solid and Chemical Materials 4,4'-DDD EPA 8270E_6_(6118) 4,4'-DDE EPA 8270E_6_(6/18) 4,4'-DDT EPA 8270E_6_(6/18) 4, 4' -Methylen ebis(2-chIoroan iii ne) EPA 8270E_6_(6/18) 4,4'-Methylenebis(n, n-dimethylaniline) EPA 8270E_6_(6/18) 4,4'-0xydianiline EPA 8270E_6_(6/1 B) 4,6-Dinitro-2-methylphenol EPA 8270E_6_(6/18) 4-Chloro-1,2-phenylenediamine EPA B270E_6_(6/18) 4-Chloro-t ,3-phenylenediamine EPA 8270E_6_(6l18) 4-Chloro-3-methylphenol EPA 8270E_6_(6/18) 4-Chlorophenol EPA 8270E_6_(6/18) 4-Chlorophenyl phenylether EPA 8270E_6_(6/18) 4-Dimethyl aminoazobenzene EPA 8270E_6_(6/18) 4-N itrobiphenyl EPA 8270E_6_(6/18) 4-Nitrophenol EPA 8270E_6_(6/18) 5,5-Diphenylhy dantoin EPA 8270E_6_(6l18) 5-Chloro-2-methylaniline EPA B270E_6_(6/18) 5-Nitroacenaphthene EPA 8270E_6_(6/18) 5-N itro-o-anisidine EPA 8270E_6_(6/18)

Acenaphthene EPA 8270E_6_(6/18)

Acen aphthylene EPA 8270E_6_(6118) alpha-Terpineol EPA 8270E_6_(6/18)

Aminoazobenzene EPA 8270E_6_(6/18)

Anilazine EPA 8270E_6_{6/18)

Anthracene EPA 8270E_6_(6/18)

Aramite EPA 8270E_6_(6/18)

Barban EPA 8270E_6_(6/18)

Benzi dine EPA 8270E_6_(6/18)

Benzo( a)anthractlne EPA 8270E_6_(6/18)

Benzo(a)pyrene EPA 8270E_6_(6/16)

Benzo(g,h,i)perylene EPA 8270E_6_(6/18)

Benzo(k)fluoranthene EPA 8270E_6_(6/18)

Benzolb)H uora nthene EPA 8270E_6_(6/18)

Benzoic acid EPA 8270E_6_(6/18)

Benzyl alcohol EPA 8270E_6_(6/t 8)

Biphenyl EPA 8270E_6_(6/18) bis(2-Chloroelhoxy)methane EPA 8270E_6_(6/18)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1119/2021 Page 28 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1/18/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Solid and Chemical Materials bis(2-Chloroethyl) ether EPA 8270E_6_(6/18) bis(2-Chloroisopropyl) ether EPA 8270E_6_(6/18)

Bromoxynil octanate EPA 8270E_6_(6/18)

Butyl benzyl phthalate EPA 8270E_6_(6/18)

Captafol EPA 8270E_6_(6118)

Caplan EPA 8270E_6_(611 B)

Carbazole EPA 8270E_6_(611 B)

Carbophenothion EPA 8270E_6_(6/1 B)

Chrysene EPA 8270E_6_(6118)

Di(2-ethylhexyl)adipate EPA 8270E_6_(6/1 B)

Di(2-ethylhexyl)phthalate EPA 8270E_6_(6/18)

Dibenz(a,h) acridine EPA 8270E_6_(6/18)

Dibenz(a,h) anthracene EPA 8270E_6_(6/18)

Dibenz(a,j) acridine EPA 8270E_6_(6/18)

Dibenzo(a,e} pyrene EPA 8270E_6_(6/18)

Dibenzofuran EPA 8270E_6_(6/18)

Dibenzothiophene EPA 8270E_6_(6/1B)

Dichlone EPA 8270E_6_(6I18)

Diethyl phthalate EPA 8270E_6_(6/18)

Diethyl sulfate EPA 8270E_6_(6/1B)

DiethyIs ti lbestrol EPA 8270E_6_(6/18)

Dihydrosafrole EPA 8270E_6_(6/18)

Dimethyl phthalale EPA 8270E_6_(6/1B)

Di-n-butyl phthalate EPA 8270E_6_(6I18)

Dinocap EPA B270E_6_(6/18)

Di-n-octyl phthalate EPA 8270E_6_(6/18)

Diphenylamine EPA 8270E_6_(6/18)

Fluchloralin EPA 8270E_6_(6I18)

Fluoranlhene EPA 8270E_6_(6/18)

Fluorene EPA 8270E_6_(6/18)

Hexachlorobenzene EPA 8270E_6_(6/18)

Hexachlorobutadien e EPA 8270E_6_(6/18)

Hexachlorocyclopentadiene EPA 8270E_6_(6/18)

Hexachloroethane EPA 8270E_6_(6/18)

Hexamethylphosphoramide (HMPA) EPA 8270E_6_(6/18)

Hydroquinone EPA 8270E_6_(6/18) lndeno(1,2,3-cd) pyrene EPA 8270E_6_(6/18)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1/19/2021 Page 29 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 111812022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Solid and Chemical Materials lsophorone EPA 8270E_6_(6/18) m+p Cresol EPA 8270E_6_(6/18)

Mestranol EPA 8270E_6_(6l18)

Mexacarbate EPA 8270E_6_(6l18)

Mirex EPA 8270E_6_(6/18)

Naphthalene EPA 8270E_6_(6/18) n-Hexadecane EPA 8270E_6_(6/18)

Nicotine EPA 8270E_6_(6/18)

Nitrobenzene EPA 8270E_6_(6/18)

Nitrofen EPA 8270E_6_(6l18)

Nitroquinoline-1-oxide EPA 8270E_6_(6118) n-Nitrosodimethylamine EPA 8270E_6_(6l18)

N-Nitroso-di-n-propylamine EPA 8270E_6_(6/18) n-Nitrosodiphenylamine EPA 8270E_6_(6/18) n-Tetradecane EPA 8270E_6_(6/18) o-Anisidine EPA 8270E_6_(6/1 B)

Octamelhyl pyrophosphoramide EPA 8270E_6_(6/18) p-Benzoquinone EPA 8270E_6_(6/18) p-Cresidine EPA 8270E_6_(6/18)

Pentachlorophenol EPA 8270E_6_(6I18)

Phenanthrene EPA 8270E_6_(6/18)

Phenobarbital EPA 8270E_6_(6/18)

Phenol EPA 8270E_6_(6/18)

Phosafone EPA 8270E_6_(6/18)

Phosmel (lmidan) EPA 8270E_6_(6/18)

Phosphamidon EPA 8270E_6_(6/18)

Phthalic anhydride EPA 8270E_6_(6118)

Piperonyl sulfoxide EPA 8270E_6_(6/I8)

Propylthiouracil EPA 8270E_6_(6/18)

Pyrene EPA 8270E_6_(6l1B)

Pyridine EPA 8270E_6_(6/1 B)

Resorcinol EPA 8270E_6_(6/18)

Strychnine EPA 8270E_6_(6/18)

Sulfallate EPA 8270E_6_(6l18)

Terbufos EPA 8270E_6_(6/18)

Tetraelhyl dilhiopyrophosphate EPA 8270E_6_(6/18)

Thiophenol (Benzenethiol) EPA 8270E_6_(6l18)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 111912021 Page 30 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1118/2022 C567-21

Edge Analytical, Incorporated Matrix/Analyte Method Notes Sotid and Chemical Materials Toluene diisocyanate EPA 8270E_6_(6/18)

Trifluralin (Treflan) EPA 8270E_6_(6/18)

Trimetllyl phosphate EPA 8270E_6_(6/18)

Tri-p-tolyl phosphate EPA 8270E_6_(6/18}

tris-(2,3-0ibromopropyl) phosphate (Iris-BP) EPA 8270E_6_(6/18) 4-Bromophenyl phenyl ether {BDE-3) EPA 8270E_6_(6/18) SIM Accredited Parameter Note Detail (1) Accreditation based in part on recognition of Oregon NE LAP accreditation. (2) Accreditation based in part on recognition of EPA Region 10 certification. (3) Me1hod not approved for NPDES testing. (4) Washington Department of Ecology Analytical Methods for Petroleum Hydrocarbons, Publication Number ECY 97-602, June 1997. (5) Approved for compliance testing only when holding time is met. (7) Method modified to determine this analyte. (8) Results for MCPP and MCPA reported from GC/MS SIM data. (9) Provisional accreditation pending submittal of additional, acceptable Proficiency Testing (PT) results {WAC 173*50-11 D). (1 O) Provisional accreditation pending completion of update to SW 846 Update V. (11) includes SIM (13) Provisional status pending completion of update to EPA Method 624.1 (14) Provisional status pending completion of update to EPA Method 608.3 (15) Provisional status pending completion of update to EPA Method 625.1 (17) Interim accreditation pending the successful completion of an on-site audit to verify method capabilities (WAC 173*50-100). (18)

Provisional accreditation pending acceptable SOP. (19) Provisional accreditation pending submittal of acceptable SOP and IDC. (19) Provisional accreditation pending submittal of acceptable SOP and IDC. (88) Interim Washington accreditation pending receipt of an updated Scope from your other recognized accreditor (Oregon NELAP). This accreditation is based in part on recognition of your currently held accreditations for previous method versions.

02/01/2021 Authentication Signature Date Rebecca Wood, Lab Accreditation Unit Supervisor Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 1/1912021 Page 31 of 31 Scope of Accreditation Report for Edge Analytical, Incorporated Scope Expires: 1118/2022 C567-21

m:4£ ~tat£ of ~azJringtnn Department of Ecology Anatek Labs, Inc - Moscow Moscow, ID has complied with provisions set forth in Chapter 173-50 WAC and is hereby recognized by the Department of Ecology as an ACCREDITED LABORATORY for the analytical parameters listed on the accompanying Scope of Accreditation. This certificate is effective March 21, 202 J and shall expire March 20, 2022.

Witnessed under my hand on April 12, 2021

~~

Rebecca Wood Lab Accreditation Unit Supervisor Laboratory ID C595

WASHINGTON STATE DEPARTMENT OF ECOLOGY ENVIRONMENTAL LABORATORY ACCREDITATION PROGRAM SCOPE OF ACCREDITATION Anatek Labs, Inc - Moscow Moscow, ID is accredited for the analytes listed below using the methods indicated. Full accreditation is granted unless stated otherwise in a note. EPA is the U.S. Environmental Protection Agency. SM is "Standard Methods for the Examination of Water and Wastewater." SM refers to EPA approved method versions. ASTM is the American Society for Testing and Materials. USGS is the U.S. Geological Survey. AOAC is the Association of Official Analytical Chemists. Other references are described in notes.

Matrix/Analyte Method Notes Drinking Water Turbidity EPA 180.1_2_1993 1,8 Bromide EPA 300.0_2.1 _1993 9 Chloride EPA 300.0_2.1 _1993 Fluoride EPA 300.0_2.1_1993 1,8 Nitrate EPA 300.0_2.1_1993 1,8 Nitrate+ Nitrite EPA 300.0_2.1_1993 Nitrite EPA 300.0_2.1_1993 1,8 Orthophosphate Sulfate EPA 300.0_2.1_1993 EPA 300.0_2.1_1993 ,

Perchlorate EPA 331.0_1.0_2005 1 Cyanide, Total EPA 3354_1_1993 1,8 Color SM 2120 B-2011 1,9 Alkalinity SM 2320 B-2011 Hardness (calc.) SM 2340 B-2011 Specitic Conductance SM 2510 B-2011 Solids, Total Dissolved SM 2540 C-2011 Cyanide, Weak Acid Dissociable SM 4500 CN- 1-2011 pH SM 4500-H+ B-2011 1,6,9 Nitrate SM 4500-NO3- F-2011 1,8 Nitrate + Nilrite SM 4500-NO3- F-2011 1 Nitrite SM 4500-NO3- F-2011 1,8 Total Organic Carbon SM 5310 B-2011 Anionic Surfactants (MBAS)

Aluminum SM 5540 C-2011 EPA 200.7_4.4_1994 ,

Barium EPA 200.7_4.4_1994 1,8 Beryllium EPA 200.7_4 4_1994 1,8 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 3/21/2021 Page 1 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Scape Expires: 3/2012022 C595-21

Ana1ek Labs, Inc - Moscow Matrix/Analyte Method Notes Drinking Water Cadmium EPA 200.7_4.4_1994 1.B Calcium EPA 200.7_4.4_1994 1 Chromium EPA 200.7_4.4_1994 1,8 Copper EPA 200.7_4.4_1994 1,8 Iron EPA 200,7_4.4_1 994 Magnesium EPA 200.7_4.4_1994 Manganese EPA 200.7_4.4_1994 Nickel EPA 200.7_4.4_1994 1,8 Potassium EPA 200.7_4.4_1994 Silver EPA 200.7_4.4_1994 Sodium EPA 200.7_4.4_1994 1,8 Zinc EPA 200.7_4.4_1994 Aluminum EPA 200.8_5.4_1994 1 Antimony EPA 200.8_5.4_1994 1,8 Arsenic EPA 200.8_5.4_1994 1,8 Barium EPA 200.8_5.4_1994 1,8 Beryllium EPA 200.8_54_1994 1,8 Cadmium EPA 200.8_5.4_1994 1,8 Chromium EPA 200.8_5.4_1994 1,8 Copper EPA 200.8_5.4_1994 1,8 Lead EPA 200.8_5.4_1994 1,8 Manganese EPA 200.8_5.4_1994 1 Mercury EPA 200.8_5.4_1994 1,8 Nickel EPA 200.8_5.4_1994 1,8 Selenium EPA 200.8_5.4_1994 1,8 Silver EPA 200.8 _5.4_1994 1 Thallium EPA 200.8_5.4_1994 1,8 Total Uranium EPA 200.8_5.4_1994 1,8 Zinc EPA 200.8_5.4_1994 1,2,3-Trichloropropane EPA 504.1 _1.1_1995 1,9 1,2-Dibromo-3-chloropropane (DBCP) EPA 504 U .1_1995 1,8,9 1,2-Dibromoethane (EDB, Ethylene dibromide) EPA504.1_1.1_1995 1,8,9 Aldrin EPA 505_21_1995 1 Aroclor-1016 (PCB-1016) EPA 505..,2.1 _1995 1,8 Aroclor-1221 (PCB-1221) EPA 505_2.1_1995 1,8 Aroclor-1232 (PCB-1232) EPA 505_2.1 _1995 1,8 Aroclor-1242 (PCB-1242) EPA 505_2.1 _1995 1,8 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 3/21/2021 Page 2 of 25 Scope of Accreditation Report for Anatek Labs. Inc - Moscow Scope Expires: 3/20/2022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Drinking Water Aroclor-1248 (PCB-1248) EPA 505_2.1_1995 1,8 Aroclor-1254 (PCB-1254) EPA 505_2.1_1995 1,8 Aroclor-1260 (PCB-1260) EPA 505_2.1_1995 1,8 Chlordane (tech.) EPA 505_2.1 _1995 1,8 Dieldrin EPA 505_2.1_1995 1 Endrin EPA 505_2.1_1995 1,8 gamma-BHC (Lindane, garnrna-Hexachlorocyclohexane) EPA 505_2.1 _1995 1,8 Heptachlor EPA 505_2.1 _1995 1,8 Heptachlor epoxide EPA 505_2.1 _1995 1,8 Methoxychlor EPA 505_2.1 _1995 1,8 Toxaphene (Chlorinated camphene} EPA 505_2.1_1995 1,8 2,4,5-T EPA 515.4_1_2000 2,4-D EPA 515.4_1_2000 1,8 2,4-DB EPA 515.4_1_2000 3,5-0ichlorobenzoic acid EPA 515.4_1_2000 Acifluorfen EPA 515.4_1_2000 Bentazon EPA 515.4_1_2000 Chloramben EPA 515.4_1_2000 Dacthal Acid Metabolites EPA 515.4_1_2000 Dalapon EPA 515.4_1_2000 1,8 Dicamba EPA 515.4_1_2000 1 Dichloroprop (Dichlorprop) EPA 515.4_1_2000 1 Dinoseb (2-sec-butyl-4,6-dinitrophenol, DNBP) EPA 515.4_1_2000 1,8 PentachIorophe noI EPA 515.4_1_2000 1,8 Picloram EPA 515.4_1_2000 1,8 Silvex (2,4,5-TP) EPA 515.4_1_2000 1,8 3-Hydroxycarbofu ran Aldicarb (Ternik)

EPA 531.2_1_2001 EPA 531.2_1_2001 ,

1 Aldicarb sulfone EPA 531.2_1_2001 Aldicarb sulfoxide EPA 531.2_1_2001 Carbary! (Sevin) EPA 531.2_1_2001 1 Carbofuran (Furaden) EPA 531.2_1_2001 1,8 Methiocarb (Mesurol) EPA 531.2_1_2001 Methomyl (Lannate) EPA 531.2_1_2001 Oxamyl EPA 531.2_1_2001 1,8 Propoxur (Baygon) EPA 531.2_1_2001 1 Glyphosate EPA547_1990 1,8 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 3/2112021 Page 3 of 25 Scope of Accreditation Report for Anatek Laos, Inc - Moscow Scope Expires: 3/20/2022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Drinking Water Diquat EPA 549.2_1_1997 1,8 Bromoacetic acid (MBAA, BAA) SM 6251 B-05 1,8 Bromachloroacetic acid (BCAA) SM 6251 B-05 1 Chloroacebc acid (MCAA, CAA) SM 6251 B-05 1,8 Dibromoacetic acid (DBAA) SM 6251 B-05 1,8 Dichloroacetic acid (DCAA) SM 6251 B--05 1,8 Total haloacetic acids (HAA5) SM 6251 B-05 1,8 Tri chlo roacetic acid (TCAA} SM 6251 B-05 1,8 1, 1, 1,2-Tetrachloroethane EPA 524.3_1.0_2009 1, 1,1-Trichloroethane EPA 524.3_1.0_2009 1, 1,2,2-Tetrachloroethane EPA 524.3_1.0_2009 1, 1,2-Trichloroethane EPA 524.3_1.0_2009 1,1-Dichloroethane EPA 524.3_1.0_2009 1,1-Dichloroethylene EPA 524.3_1.0_2009 1, 1-Dichloropropene EPA 524.3_1.0_2009 1,2,3-Trichlorobenzene EPA 524.3_1.0_2009 1,2,3-Trichloropropane EPA 524.3_1.0_2009 1,2,4-Trichlorobenzene EPA 524.3_1.0_2009 1,2,4-Trimelhylbenzene EPA 524.3_1.0_2009 1,2-Dichlorobenzene EPA 524.3_1.0_2009 1,2-Dichloroelhane (Ethylene dichloride) EPA 524.3_1.0_2009 1,2-Dichloropropane EPA 524.3_1.0_2009 1,3,5-Trimethylbenzene EPA 524.3_1.0_2009 1,3-Dichlorobenzene EPA 524.3_1.0_2009 1,3-Dichloropropane EPA 524.3_1.0_2009 1,4-Dichlorobenzene EPA 524.3_1.0_2009 2,2-Dichloropropane EPA 524.3_1.0_2009 2-Chlorotoluene EPA 524.3_1.0_2009 4-Chlorotoluene EPA 524.3_1.0_2009 4-lsopropyltotuene (p-Cymene) EPA 524.3_1.0_2009 Benzene EPA 524.3_1.0_2009 Bromobenzene EPA 524.3_1.0_2009 1 Bromochloromethane EPA 524.3_1.0_2009 1 Bromodichloromethane EPA 524.3_1.0_2009 1,8 Bromoform EPA 524.3_1.0_2009 1,8 Carbon disulfide EPA 524.3_1.0_2009 Carbon tetrachloride EPA 524.3_1.0_2009 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 3/2112021 Page 4 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Scope Expires: 312012022 C595-21

Anatek Labs, Inc- Moscow Matrix/Analyte Method Notes Drinking Water Chlo roben zen e EPA 524.3_1.0_2009 1 Ch lorod ibromom ethane EPA 524.3_1. 0_2009 1,8 Chloroethane (Ethyl chloride) EPA 524.3_1.0_2009 Chloroform EPA 524.3_1.0_2009 1,8 cis-1,2-Dichloroethylene EPA 524.3_1.0_2009 1 cis-1,3-Dichloropropene EPA 524.3_1.0_2009 Dibromomethane EPA 524.3_1.0_2009 Dichlorodifluoromethane (Freon-12) EPA 524.3_ 1.0_2009 Diethyl ether EPA 524.3_1.0_2009 Ethylbenzene EPA 524.3_1 .0 _2009 Hexachlorobutacliene EPA 524.3_1.0_2009 lodomethane (Methyl iodide) EPA 524.3_1.0_2009 lsopropylbenzene EPA 524.3_1.0_2009 m+p-xylene EPA 524.3_1.0_2009 Methyl bromide (Bromomethane) EPA 524.3_1.0_2009 Methyl chloride (Chloromethane) EPA 524.3_1.0_2009 Methyl tert-butyl ether (MTBE) EPA 524.3_1.0_2009 Methylene chloride (Dichloromethane) EPA 524.3_1.0_2009 Naphthalene EPA 524.3_1.0_2009 n-8utylben zene EPA 524,3_1.0_2009 n-Propylbenzene EPA 524.3_1.0_2009 a-Xylene EPA 524. 3_1.0_2009 sec-Butylbenzene EPA 524.3_1.0_2009 Styrene EPA 524.3_1.0_2009 tert-Butylbenzene EPA 524.3_1.0_2009 Tetrachloroethylene (Perchloroethylene) EPA 524.3_1.0_2009 Toluene EPA 524.3_1.0_2009 Total Trihalomethanes EPA 524.3_1.0_2009 1,8 trans-1,2-Dichloroethylene EPA 524.3_1.0_2009 trans-1,3-Dichloropropylene EPA 524.3_1.0_2009 Trichloroethene (Trichloroethylene) EPA 524.3_1.0_2009 Trichlorofluoromethane (Freon 11) EPA 524.3_1.0_2009 Vinyl chloride EPA 524.3_1.0_2009 1,8 Xylene {total} EPA 524.3_1.0_2009 1 2,4-Dinitrotoluene (2,4-DNT) EPA 525.2_2_1995 2,6-Dinitrotoluene (2,6-DNT) EPA 525.2_2_1995 4,4'-DDD EPA 525.2_2_1995 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 3/21/2021 Page 5 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Scope Expires 3/2012022 C595-21

Anatek Labs, Inc - Moscow Matrix/An alyte Method Notes Drinking Water 4,4'-DDE EPA 525.2_2_1995 4,4'-DDT EPA 525.2_2_1995 Acenaphthylene EPA 525.2_2_1995 Acetochlor EPA 525.2_2_1995 1 Alachlor EPA 525.2_2_1995 1,8 alpha-SH C (alph a-Hexachlorocyclo hexane) EPA 525.2_2_1995 alpha-Chlordane EPA 525.2_2_1995 Anlhracena EPA 525.2_2_1995 Atrazine EPA 525.2_2_1995 1,8 Benzo(a)an th racene EPA 525.2_2_1995 1 Benzo(a}pyrene EPA 525.2_2_1995 Benzo(g,h,i)peryle ne EPA 525.2_2_1995 Benzo(k)fluoranthene EPA 525.2_2_1995 Benzo[b]fluoranthene EPA 525.2_2_1995 beta-8HC (beta-Hexachlorocyclohexane) EPA 525.2_2_1995 bis(2-Ethylhexyl) phthalate (DEH P) EPA 525.2_2_ 1995 1,8 Bromacil EPA 525.2_2_1995 Butachlor EPA 525.2_2_1995 Butyl benzyl phthalate EPA 525.2_2_1995 1,B Chlorolhalonil EPA 525.2_2_1995 1 Chrysene EPA 525.2_2_1995 Cyanazine EPA 525.2_2_1995 delta-BHC EPA 525.2_2_1995 Di(2~Ihylhexyl)adipate EPA 525.2_2_1995 1,8 Diazinon EPA 525.2_2_1995 Dibenz(a,h) anlhracene EPA 525.2_2_1995 Diethyl phlhalate EPA 525.2_2_1995 1,8 Dimethyl phthalate EPA 525.2_2_1995 1,8 Di-n-butyl phthalate EPA 525.2_2_1995 1,8 EPTC (Eptam, s-ethyl-dipropyl thio carbamate) EPA 525.2_2_1995 Fluorene EPA 525.2_2_1995 1 gamma-Chlordane EPA 525.2_2_1995 1 Hexachlorobenzene EPA 525.2_2_1995 1,8 Hexachlorocyclopentadiene EPA 525.2_2_1995 1,8 lndeno(1,2,3-cd) pyrene EPA 525.2_2_1995 Metolachlor EPA 525.2_2_1995 Metribuzin EPA 525.2_2_1995 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 3/2112021 Page 6 of 25 Scope of Accreelilation Report for Anatek Labs, Inc - Moscow Scope Expires: 312012022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Drinking Water Molinate EPA 525.2_2_1995 Phenanthrene EPA 525.2_2_1995 Prometon EPA 525.2_2_1995 Propachlor (Ramrod) EPA 525.2_2_1995 Pyrene EPA 525.2_2_1995 Simazine EPA 525.2_2_1995 1,B Terbacil EPA 525.2_2_1995 trans-Nonachlor EPA 525,2_2_1995 11-Chloroeicos alluoro-3-oxaundecane-1-sulfonic acid (11-CI-PF30UdS) EPA 533 1H, 1H,2H,2H,-Perfluorodecanesulfonic acid (8:2 FTS) EPA 533 1H,1H,2H,2H ,-Perfluorooctansulfonic acid (6:2 FTS) EPA 533 1H, 1H,2H,2H-Perfluorohexanesulfonic acid (4:2 FTS) EPA 533 4,B-Dioxa-3H-perfluorononanoic acid (ADONA) EPA 533 9-Ch lorohexadecafluoro-3-<Jx an on an e-1-su lfon ic acid (9-CI-PF 3ON S) EPA 533 Hexafluoropropylene oxide dimer acid (H FPO-DA) EPA 533 Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) EPA 533 Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA) EPA 533 Perfluoro-3-methoxypropanoic acid (PFMPA) EPA 533 Perfluoro-4-methoxybutanoic acid {PFMBA) EPA 533 Perfluorobutane sulfonic acid (PFBS) EPA 533 Perfluorobutanoic acid (PFBA) EPA 533 Perfluorodecanoic acid (PFDA) EPA 533 Perfluorododecanoic acid (PFDoA) EPA 533 Perfluoroheptane sulfonic acid (PFHpS) EPA 533 Perfluoroheptanoic acid (PFH pA) EPA 533 Perfluorohexane sulfonic acid (PFHxS) EPA 533 Perfluorohexanoic acid (PFHxA) EPA 533 Perfluorononanoic acid (PFNA) EPA 533 Perfluorooctane sulfonic acid (PFOS) EPA 533 Perfluorooclanoic acid (PFOA) EPA 533 Perfluoropentane sulfonic acid (PFPeS) EPA 533 Perfluoropentanoic acid (PFPeA) EPA 533 Perfluoroundecanoic acid (PFUnA) EPA 533 N-Ethylperfluorooclane sulfonamido acetic acid (NEIFOSAA) EPA 537_1.1_2009 N-Methylperfl uorooctane sulfonamido acetic acid (NMeFOSAA) EPA 537_1.1_2009 Perfluorobutane sulfonic acid (PFBS) EPA 537_1.1 _2009 Perfluorodecanoic acid (PFDA) EPA 537_1.1 _2009 Washington State Department of Ecology Laboratory Accreditation Unit Effective Dale: 3121 /2021 Page 7 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Scope Expires 312012022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Drinking Water Perfluorododecanoic acid (PFDoA) EPA 537_11_2009 Perfluoroheptanoic acid (PFHPA) EPA 537_1.1_2009 Perfluorohexane sulfonic acid (PFHxS) EPA 537_1,1_2009 Perfluorohexanoic acid (PFHxA) EPA 537_1.1 _2009 Perfluorononanoic acid (PFNA) EPA 537_1.1_2009 Perfluorooctane sulfonic acid (PFOS) EPA 537_1.1_2009 Perfluorooctanoic acid (PFOA) EPA537_1.1_2009 Perfluorotetradecanoic acid (PFTeDA) EPA 537_1. 1_2009 Perfluorotridecanoic acid (PFTrDA) EPA 537_1.1_2009 Perfluoroundecanoic acid (PFUnA) EPA 537_1.1_2009 Endothall EPA 548.1 _1_1992 1,8 Total coli/E.coli - detect SM 9223 B Colilert 18 (PA} 8 E.coli-count SM 9223 B Colilert 18 QTray 8 Non-Potable Water n-Hexane Extractable Material (O&G) EPA 1664A_1_1999 n-Hexane Extractable Material (O&G) EPA 16648-10 (HEM) 1,9 Turbidity EPA 180.1_2_1993 Chloride EPA 300.0_21 _1993 Fluoride EPA 300.0_2.1 _1993 Nitrate EPA 300.0_2.1_1993 Nitrate + Nitrite EPA 300.0_2.1 _1993 Nitrite EPA 300.0_2. 1_1993 Orthoph OSphate EPA 300.0_2.1_1993 Sulfate EPA 300.0_2.1_1993 Perchlorate EPA 331.0_1.0_2005 Cyanide, Total EPA 335.4_1_1993 Phenolics, Total EPA 420.1_1978 Perchlorate EPA 6850-07 Alkalinity SM 2320 B-2011 Hardness (calc.) SM 2340 B-2011 Specific Conductance SM 2510 8-2011 Solids, Total Dissolved SM 2540 C-2011 Solids, Total Suspended SM 2540 D-2011 1,9 Cyanide, Weak Acid Dissociable SM 4500 CN- 1-2011 Cyanides, Amenable to Chlorination SM 4500-CN- G-2011 pH SM 4500-H+ B-2011 1,6 Ammonia SM 4500-NH3 G-2011 1 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 312112021 Page 8 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Scope Expires: 3/2012022 C595-21

Anatek Labs. Inc - Moscow Matrix/Analyte Method Notes Non-Potable Water Nitrate SM 4500-NO3- F-2011 Nitrate .. Nitrite SM 4500-NO3- F-2011 Nitrite SM 4500-NO3- F-2011 Nitrogen, Total Kjeldahl SM 4500-Norg C-2011 Orthophosphate SM 4500-P F-2011 Phosphorus, total SM 4500-P F-2011 Sulfide SM 4500-S2- F-2011 9 Total Organic Carbon SM 5310 B-2011 1 Phenolics, Total SM 5530 D-2010 Mercury EPA 1631 E-02 Aluminum EPA 200.7_4.4_1994 Arsenic EPA 200.7_4.4_1994 Barium EPA 200.7_4.4_1994 Beryllium EPA 200. 7_4.4_1994 Boron EPA 200.7 _4.4_1994 Cadmium EPA 200.7_4.4_1994 Calcium EPA 200.7_4.4_1994 Chromium EPA 200.7_4.4_1994 Cobalt EPA 200.7_4.4_1994 Copper EPA 200.7_4.4_1994 Iron EPA 200.7_4.4_1994 Lead EPA 200.7_4.4_1994 Lithium EPA 200.7_4.4_1994 Magnesium EPA 200.7_4.4_1994 Manganese EPA 200.7_4.4_1994 Molybdenum EPA 200.7_4.4_1994 Nickel EPA 200.7_4.4_1994 Sodium EPA 200.7_4.4_1994 Tin EPA 200.7_4.4_1994 Titanium EPA 200.7_4.4_1994 Vanadium EPA 200.7_4.4_1994 Zinc EPA 200.7_4.4_1994 Aluminum EPA 200.8_5.4_1994 Antimony EPA 200.8_5.4_1994 Arsenic EPA 200.8_5.4_1994 Barium EPA 200.8_5.4_1994 1 Beryllium EPA 200.8_5.4_1994 1,9 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 312112021 Page 9 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Scope Expires: 312012022 C595-21

Anatek Labs, Inc- Moscow Matrix/Analyte Method Notes Non-Potable Water Cadmium EPA 200.8_5.4_1994 Calcium EPA 200.8_5.4_1994 Chromium EPA 200.8_5.4_1 994 Cobalt EPA 200.8_5.4_1 994 Copper EPA 200.8_5.4_1994 Iron EPA 200.8_5.4_1 994 Lead EPA 200.8_5.4_1994 Magnesium EPA 200.8_5.4_1994 Manganese EPA 200.8_5.4_1994 Mercury EPA 200.8_5.4_1994 1 Molybdenum EPA 200.8_5.4_1994 1,9 Nickel EPA 200.8_5.4_1994 Potassium EPA 200.8_5.4_1994 Selenium EPA 200.8_5.4_1994 Silver EPA 200.8_5.4_1994 Sodium EPA 200.8_5.4_1994 Strontium EPA 200.8_5.4_1994 Thallium EPA 200.8_5.4_1994 Tin EPA 200.8_5.4_1994 Titanium EPA 200.8_5.4_1994 Total Uranium EPA 200.8_5.4_1994 Vanadium EPA 200.8_5.4_1994 Zinc EPA 200.8_5.4_1994 Mercury EPA 245.7_2005 4,4'.DDD EPA 608.3 4,4'*DDE EPA 608.3 4,4'-DDT EPA 608.3 Aldrin EPA 608.3 alpha-8HC (alph a-Hexachlorocyclohexa ne) EPA 6083 Aroclor-1016 (PCB-1016) EPA 6083 Aroclor-1221 (PCB*1221) EPA608.3 Aroclor-1232 (PCB.1232) EPA608.3 Aroclor.1242 (PC8*1242) EPA 608.3 Aroclor-1248 (PCB*1248) EPA608.3 Aroclor*1254 (PCB-1254) EPA 608.3 Aroclor-1260 (PCB-1260) EPA608.3 beta-BH C (beta-H exachlorocyclohexane) EPA608.3 Washington State Department of Ecology Laboratory Accreditation Unit Effective Dale: 3/21/2021 Page 10 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Scope Expires: 312012022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Non-Potable Water Chlordane (tech.) EPA 608.3 delta-BHC EPA 608.3 Dieldrin EPA 608.3 Endosulfan I EPA 608.3 Endosulfan 11 EPA 608.3 Endosulfan sulfate EPA 608.3 Endrin EPA 608.3 Endrin aldehyde EPA 608.3 Endrin ketone EPA 608.3 gamma-BHC (Lindane, gamma-Hexachlorocyclohexane) EPA 608.3 Heptachlor EPA 608.3 Heptachlor epoxide EPA 608.3 Methoxychlor EPA 608.3 Toxaphene (Chlorinated camphene) EPA 608.3 1, 1, 1,2-Tetrachloroethane EPA 624.1 1, 1, 1-Trichloroethane EPA 624.1 1, 1,2,2-Tetrachloroethane EPA 624.1 1,1,2-Trichloroelhane EPA 624.1 1,1-Dichloroethan e EPA 624.1 1,1-Dichloroethylene EPA 624.1 1, 1-Dichloropropene EPA 624.1 1,2,3-Trichlorobenzene EPA 624.1 1,2,3-Trichloropropane EPA 624.1 1 1,2,4-Trimethylbenzene EPA 624.1 1 1,2-Dibromo-3-chloropropane (DBCP) EPA 624.1 1,2-Dibromoethane (EDB, Ethylene dibromide) EPA 624.1 1,2-Dichlorobenzene EPA 624.1 1,2-Dichloroettiane (Ethylene dichloride) EPA 624.1 1,2-Dichloropropane EPA 624.1 1,3,5-Trimelhylbenzene EPA 624.1 1,3-Dichlorobenzene EPA 624.1 1,3-Dichloropropane EPA 624.1 1,4-Dichlorobenzene EPA 624.1 2,2-Dichloropropane EPA 624.1 2-Butanone (Methyl ethyl ketone, MEK) EPA 624.1 2-Chloroethyl vinyl ether EPA 624.1 2-Chlorotoluene EPA 624.1 Washington State Departmerit of Ecology Laboratory Accreditation Uoit Effective Date: 3/2112021 Page 11 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Scope Expires: 312012022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Non-Potable Water 2-Hexanone EPA 624.1 4-Chlorololuene EPA 624.1 4-lsopropyltoluene (p-Cymene) EPA 624.1 4-Methyl-2-pentanone (MIBK) EPA 624.1 Acrolein (Propenal) EPA 624.1 Acrylon itrile EPA624.1 Benzene EPA 624.1 Bromobenzene EPA 624.1 Bromochloromethane EPA 624,1 Bromodichloromethane EPA 624.1 Bromoform EPA 624.1 Carbon disulfide EPA 624.1 Carbon tetrachloride EPA624.1 Chlorobenzene EPA 624.1 Chlorodibromomethane EPA 624.1 Chloroelhane (Ethyl chloride) EPA 624.1 Chloroform EPA 624.1 cis-1,2-Dichloroethylene EPA 624.1 cis-1,3-Dichloropropene EPA 624.1 Dibromomethane EPA 624.1 Diethyl ether EPA 624.1 Ethylbenzene EPA624.1 lodomelhane (Methyl iodide) EPA 624.1 lsopropylbenzene EPA624.1 m+p-xylene EPA 624.1 Methyl bromide (Bromomethane) EPA624.1 Methyl chloride (Chloromethane) EPA 624.1 Methyl tart-butyl ether (MTBE) EPA624.1 Methylene chloride (Dichloromethane) EPA624.1 n-8utylben zene EPA624.1 n-Propylbenzene EPA6241 sec-Bulylbenzene EPA624.1 Styrene EPA6241 tert-Butylbenzene EPA 624.1 Tetrachloroethylene (Perchloroethylene) EPA 624.1 Toluene EPA 624.1 trans-1,2-Dichloroethylene EPA 624.1 Washington State Department of Ecology Laboratory Accreclitation Unit Effective Date: 3/21/2021 Page 12of 25 Scope of Accreditation Report for Analek Labs, Inc - Moscow Scope Expires: 3120/2022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Non-Potable Water trans-1,3-Dichloropropylene EPA 624.1 trans-1,4-Dichloro-2-butene EPA624.1 Tri chloroeth en e (Trich loroethylen e) EPA624.t Trichlorofluoromethane (Freon 11) EPA 624.1 Vinyl chloride EPA 624.1 Xylene (total) EPA 624.1 1,2,4-Trichlorobenzene EPA 625.1 1,2-Dinitrobenzene EPA 625.1 1,2-Diphenylhydrazine EPA 625.1 1,3-Dinilrobenzene (1,3-DNB) EPA625.1 1-Methylnaphthalene EPA 625.1 2,3, 4, 6-Tetrachlorophen ol EPA 625.1 2,3,5,6-Tetrachlorophenol EPA 625.1 2,4,5-Trichlorophenol EPA 625.1 2.4,6-Trichlorophenol EPA 625,1 2,4-Dichlorophenol EPA 625.1 2,4-Dimethylpll en ol EPA 625.1 2,4-Dinitrophenol EPA 625.1 2,4-Dinitrotoluene (2,4-DNT) EPA 625.1 2,6-Dinitrotoluene (2,6-DNT) EPA 625.1 2-Chloronaphthalene EPA 625.1 2-Chlorophenol EPA 625.1 2-Methylnaphthalene EPA 625.1 2-Methylphenol (o-Cresol) EPA 625.1 2-Nitroaniline EPA 625.1 2-Nilrophenol EPA 625.1 3,3'-Dichlorobenzidine EPA 625.1 J-Nilroaniline EPA 625.1 4, 6-Dini1ro-2-m ethylphenol EPA 625.1 4-Bromophenyl phenyl ether (BDE-3) EPA 625.1 4-Chloro-3-rnethyIphenol EPA 625.1 4-Chloroaniline EPA 625.1 4-Chlorophenyl phenylether EPA 625.1 4-Methylphenol (p-Cresol) EPA 625.1 4-Nitroaniline EPA 625.1 4-Nitrophenol EPA 625.1 Acenaphthene EPA 625.1 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 3/21/2021 Page 13 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Seope Expires: 3/2012022 C595-21

Anatek Labs, Inc - Moscow Matrix/Ana lyte Method Notes Non-Potable Water Acenaphthylene EPA 625.1 Aniline EPA 625.1 Anthracene EPA 625.1 Benzidine EPA 625.1 Benzo( a)an th racen e EPA 625.1 Benzo(a)pyrene EPA 625.1 Ben zo{g, h,i)perylene EPA 625.1 Benzo(k)fluoranthene EPA 625.1 Ben zo [b]fluoran thene EPA 625.1 Benzoic acid EPA 625.1 Benzyl alco hoI EPA 625.1 bis(2-Chloroethoxy)methane EPA 625.1 bis(2-Chloroisopropyl) ether EPA 625.1 bis(2-Ethylhexyl} phthalate (DEHP) EPA 625.1 Butyl benzyl phthalate EPA 625.1 Carbazole EPA 625.1 Chrysene EPA 625.1 Dibenz(a,h) anthracene EPA 625.1 Diethyl phthalate EPA 625.1 Dimethyl phthalate EPA 625.1 Di-n-butyl phthalate EPA 625.1 Di-n-octyl phthalate EPA625.1 Fluoranthene EPA625.1 Fluorene EPA625.1 Hexachlorobenzene EPA 625.1 Hexachlorobu tad iene EPA 625.1 Hexachlorocyclopentad iene EPA 625.1 Hexachloroethane EPA 625.1 Indeno(1,2,3-cd) pyrene EPA 625.1 lsophorone EPA 625.1 m+p Cresol EPA 625.1 Naphthalene EPA 625.1 Nitrobenzene EPA 625.1 N-N itrosodimethylamine EPA 625.1 N-Nitroso-di-n-propylamine EPA 625,1 N-Nitrosodiphenylamine EPA 6251 Pen tac hloroph en ol EPA 625.1 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 3/21/2021 Page 14 of 25 Scope of Accreditation Report for Analek Labs, Inc - Moscow Scope Expires: 3/20/2022 C595-21

Ana1ek Labs, Inc- Moscow Matrix/Analyte Method Notes Non-Potable Water Phenanthrene EPA 625.1 Phenol EPA 625.1 Pyrene EPA 625.1 Pyridine EPA 625.1 Fecal coliform-count SM 9221 B+E1..C (LTB/BGB/EC-MPN)

Total coliforms-count SM 9221 B+E 1..C (LTB/BGB/EC-MPN)

E.coli-count SM 9221 B+F..C (L TB/BGB/EC Mug-MPN)

Total coliforms-<:ount SM 9221 B+F+C (LTB/BG8/EC Mug-MPN)

Solid and Chemical Materials Nitfate EPA 300.0_2.1_1993 Cyanide, Total EPA 335.4_1_1993 Phenolics, Total EPA 420. 1_1978 4 Cyanide, Total EPA 9012 8-04 Cyanide, Total SM 4500-CN- E-2011 Ammonia SM 4500-NH3 G-2011 Nitrogen, Total Kjeldahl SM 4500-Norg C-2011 9 Phosphorus, total SM 4500-P F-2011 Sulfide SM 4500-S2- F-2011 9 Aluminum EPA 60100_(7/14)

Barium EPA 60100_(7/14)

Beryllium EPA 60100_(7/14)

Cadmium EPA 60100_(7/14)

Calcium EPA 60100_(7/14)

Chromium EPA 60100_(7/14)

Cobalt EPA 60100_(7/14)

Copper EPA 60100_(7/14)

Iron EPA 60100_(7/14)

Lead EPA 6010D_(?/14)

Lithium EPA 60100_(7/14}

Magnesium EPA 60100_(7/14)

Manganese EPA 60100_(7/14)

Molybdenum EPA 60100_(7/14)

Nickel EPA 60100_(7/14)

Sodium EPA 60100_(7/14)

Strontium EPA 6010D_(l/14)

Thallium EPA 60100_(7/14)

Titanium EPA 60100_(7/14)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: J/21/2021 Page 15 of 25 Scope of Accreditation Report for Anatek Labs. Inc, Moscow Scope Expires: 3/20/2022 C595-21

Anatek labs, Inc - Moscow Matrix/Analyte Method Notes Solid and Chemical Materials Vanadium EPA 60100_(7/14}

Zinc EPA 60100_{7/14)

Aluminum EPA 60208_(7/14)

Antimony EPA 60208_{7/14)

Arsenic EPA 60208_(7/14)

Barium EPA 60208_(7/14)

Beryllium EPA 60208_(7/14)

Boron EPA 60208_(7/14)

Cadmium EPA 60208_(7/14}

Calcium EPA 60208_(7/14)

Chromium EPA 60208_(7/14)

Cobalt EPA 60208_(7114)

Copper EPA 60208_(7114)

Iron EPA 60208_(7/14)

Lead EPA 60208_(7/14)

Magnesium EPA 60208_(7l14)

Manganese EPA 60208_(7/14)

Mercury EPA 60206_(7/14)

Molybdenum EPA 60208_(7/14)

Nickel EPA 60208_(7/14)

Potassium EPA 60208_(7114)

Selenium EPA 6020B_(?/14)

Silver EPA 6020B_{?l14)

Sodium EPA 6020B_(?/14)

Strontium EPA 6020B_(?l14)

Thallium EPA 60206_(7/14)

Tin EPA 6020B_(?/14)

Titanium EPA 6020B_(?/14)

Vanadium EPA 60208_(7l14)

Zinc EPA 60208_(7/14)

Methamphetamine ALI SOP 602 4,4'-DDD EPA 80818_(2/07) 4,4'-DDE EPA 80818_{2107) 4,4'-DDT EPA 80818_(2/07)

Alachlor EPA 80818_(2107)

Aldrin EPA 80818_(2/07) alpha-8HC (alpha-H exachlorocyclo hexane) EPA 80816_(2/07)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 3/2112021 Page 16 of 25 Scope of Accreditation Report for Anatek Labs, Inc- Moscow Scope Expires: 3/2012022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Solid and Chemical Materials alpha-Chlordane EPA 80818_(2/07) bela-BHC (b eta-HexachIorocyc lohexane) EPA 80818_(2/07)

Chlordane (tech.) EPA 80818_(2/07)

Dacthal {DCPA) EPA 80818_(2/07) delta-BHC EPA 80818_(2/07)

Diallate EPA 80818_(2/07)

Oieldrin EPA 80818_(2107)

Endosulfan I EPA 8081 B_(2/07)

Endosulfan 11 EPA 8081 B_(2/07)

Endosulfan sulfate EPA 80818_(2l07)

Endrin EPA 80818_(2/07)

Endrin aldehyde EPA 80818_(2/07)

Endrin ketone EPA 8081 B_(2107) gamma-BHC (Lindane, gamma-Hexachlorocyclohexane) EPA 8081 B_(2/07) gamma-Chiardane EPA 80818_(2/07)

Heptachlor EPA 8081 B_(2/07)

Heptachlor epaxide EPA 80819_(2107) lsodrin EPA 80818_(2/07)

Methaxychlar EPA 80818_(2/07)

Taxaphene (Chlorinated camphene) EPA 80818_(2/07)

Aroclor-1016 (PCB-1016) EPA 8082A_(2/07)

Aroclor-1221 (PCB-1221) EPA 80B2A_(2/07)

Aroclar-1232 (PCB-1232) EPA 8082A_(2/07)

Aroclor-1242 (PCB-1242) EPA 8082A_(2/07)

Aroclor-1248 (PCB-1248) EPA 8082A_(2/07)

Araclor-1254 (PCB-1254) EPA 8082A_(2107)

Aroclor-1260 (PC8-1260) EPA 8082A_(2/07}

Azinphos-ethyl (Ethyl gulhion) EPA 81418_2_(2107)

Azinphos-methyl (Guthion) EPA 81419_2_(2/07)

Bolstar (Sulprofos) EPA 81418_2_(2/07)

Carboph en othion EPA 81418_2_(2/07)

Chlorfenvinphos EPA 81418_2_(2/07)

Chlorpyrifos EPA 81419_2_(2107)

Caumaphos EPA 81418_2_(2/07)

Demeton EPA 81418_2_(2/07)

Demelon-a EPA 81418_2_(2/07)

Demeton-s EPA 81418_2_(2/07)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 3/21/2021 Page 17 of 25 Scope of Accreditation Report for Analek Labs, Inc - Moscow Scope Expires: 3/2012022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Solid and Chemical Materials Diazinon EPA 81418_2_(2/07)

Dichlorovos (DDVP, Dichlorvos) EPA 8141 B_2_(2/07)

Dimethoate EPA 8141 B_2_(2/07)

Dioxathion EPA 8141 B_2_(2/07)

Oisulfoton EPA 8141 B_2_(2/07)

EPN EPA 81416_2_(2/07)

Ethion EPA 8141B_2_(2/07) 4 Ethoprop EPA 81418_2_(2/07)

Famphur EPA 81418_2_(2/07)

Fensulfolhion EPA 8141 B_2_(2107)

Fenthion EPA 81418_2_(2107)

Hexamethylphosph oram ide (H MPA) EPA 81418_2_(2/07)

Malathion EPA 81418_2_(2/07)

Merphos EPA 81418_2_(2/07)

Methyl parathion (Parathion, methyl) EPA 81418_2_(2107)

Mevinphos EPA 81418_2_(2/07)

Monocrotophos EPA 81418_2_(2107) 4 Naled EPA 81418_2_(2107)

Parathion, ethyl EPA 8141B_2_(2107)

Phorate EPA 8141B_2_(2/07)

Phosmel (lmidan) EPA 81418_2_(2107) 4 Ronne! EPA 81419_2_(2107)

Sulfotepp EPA 81416_2_(2/07)

Terbufos EPA 81418_2_(2/07) 4 Tetrachlorvinphos (Stirophos, Gardena) EPA 81418_2_(2/07)

Tetraethyl pyrophosphate (TEPP) EPA 8141 B_2_(2/07)

Tokuthion (Prothiophos) EPA 81418_2_(2/07)

Trichloronate EPA 81418_2_(2/07) 2,4,5-T EPA 8151A_(1/98) 2.4-D EPA 8151A_(1198) 2,4-DB EPA 8151A_(1/98) 5-Hydroxydicamba EPA 8151A_(1/98)

Acifluorfen EPA 8151A_(1/9B)

Bentazon EPA 8151A_(1/98)

Chloramben EPA 8151A_(1198)

Dacthal (DCPA) EPA 8151A_(1/98)

Dalapon EPA 8151A_(1/98)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 3/21/2021 Page 18 of 25 Scope of Accreditation Report for Analek Labs, Inc - Moscow Scope Expires: 3/2012022 C595-21

Anatek Labs, Inc - Moscow Matrix/Ana lyte Method Notes Solid and Chemical Materials OCPA di acid deg radate EPA 8151A_(1/98)

Dicamba EPA 8151A_(1/98)

Dichloroprop (Dichlorprop) EPA 8151A_(1/98)

Dinoseb {2-sec-butyl-4,6-dinitrophenol, DNBP) EPA 8151A_(1/98)

MCPA EPA 8151A_(1/98)

MCPP EPA 8151A_(1ffi8)

PentachIorop henol EPA 8151A_(1/98)

Picloram EPA 8151A_(1/98)

Silvex (2,4,5-TP) EPA 8151A_(1/98) 1,3,5-Trinitrobenzene {1,3,5-TNB) EPA 83308_(10/06) 4 1,3-Dinitrobenzene (1,3-DNB) EPA 83308_(10/06) 4 2,4,6-Trinitrobenzene EPA 83308_(10/06) 4 2,4,6-Trinitrotoluene (2.4,6-TNT) EPA 83308_(10/06) 4 2,4-Dinitrotoluene (2,4-DNT) EPA 83308_(10106) 4 2,6-Dinitratoluene (2,6-DNT) EPA 83308_(10106) 4 2-Amino-4, 6--0initrotoluene (2-a m-dnl) EPA 8330B_( 10106) 4 2-Nitrololuene EPA 83308_(10/06) 4 3-N itrotoluene EPA 83308_(10106) 4 4-Arnino-2,6-dinitrotoluene (4-am-dnt) EPA 83308_(10106) 4 4-Nitrotoluene EPA 83308_(10/06) 4 Methy1-2,4, 6-trinitroph enylnitram ine (letryl) EPA 83308_(10/06) 4 Nitrobenzene EPA 83308_(10/06) 4 Oclahydro-1 ,3,5, 7-tetran itro-1,3, 5, 7-telrazocin e (HMX) EPA 83308_(10/06) 4 RDX (hexahydro-1,3,5-trinitro-1,3,5-triazine) EPA 83308_(10/06) 4 Tetryl (methyl-2,4,6-trinitrophenylnitramine) EPA 83308_(10/06) 4 1, 1, 1,2-Tetrachloroethane EPA 8260D_4_(6/18) 1, 1, 1-Trichloroethane EPA 8260D_4_(6/18) 1, 1,2,2-Tetrachloraethane EPA 8260D_4_(6/18) 1,1,2-Tri chloroeth ane EPA 8260D_4_(6118) 1,1-Dichloroelhane EPA 8260D_4_(6118) 1,1-Dichloroethylene EPA 82600_4_(6/18) 1, 1-Dichloropropene EPA 8260D_4_(6/18) t ,2,3-Tlichlorobenzene EPA 8260D_4_(6118}

1,2,3-Trichloroprapane EPA 8260D_4_(6118) 1,2,4-Trichlorobenzene EPA 8260D_4_(6/18) 1,2,4-Trimethylbenzene EPA 8260D_4_(6/18) 1,2-Dibromo-3-<:hloropropane (DBCP) EPA 8260D_4_(6/18)

Washington Stale Department of Ecology Laboratory Accreditation Unit Effective Date: 3121/2021 Page 19 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Scope Expires: 3/20/2022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Solid and Chemical Materials 1,2-Dibromoethane (EDB, Ethylene dibromide} EPA 8260D_4_(6118) 1,2-0ichlorobenzene EPA 8260D_4_(6118) 1,2-Dichloroethane (Ethylene dichloride) EPA 8260D_4_(6/18) 1,2-Dichloropropane EPA 8260D_4_(6/18) 1,3,5-Trimethylbenzene EPA 8260D_4_(6118) 1,3-0ichlorobenzene EPA 8260D _4_(6118) 1,3-Dichloropropane EPA 8260D_4_(6118) 1,4-Dichlorobenzene EPA 82600_4_(6118) 2,2-Dichloropropane EPA 8260D_4_(6/18) 2-Butanone (Methyl ethyl ketone, MEK) EPA 8260D_4_(6/18) 2-Chlorotoluene EPA 8260D_4_(6/18) 2-Hexanone EPA 8260D_4_(6/18) 4-Chlorotoluene EPA 8260D_4_(6118) 4-lsopropyltoluene (p-Cymene) EPA 82600_4_(6118) 4-Methyl-2-penlanone (MIBK) EPA 8260D_4_(6118)

Acetone EPA 8260D_4_(6118)

Acetonitrile EPA 8260D_4_(6118)

Acrolein (Propenal) EPA 8260D_4_(6/18)

Aery IonitriIe EPA 8260D _4_(6/18)

Benzene EPA 8260D _4_(6/18)

Bromobenzene EPA 8260D_4_{6118)

Bromochloromethane EPA 82600_4_(6118)

Bromodichloromethane EPA 82600_4_(6118)

Bromoform EPA 82600_4_(6/18)

Carbon disulfide EPA 8260D_4_(6/18)

Carbon tetrachloride EPA 8260D_4_(6/18)

Chlorobenzene EPA 8260D_4_(6118)

Chlorodibromomethane EPA 8260D _4_(6/18)

Chlorodibromomethane EPA 8260D_4_(6118)

Chlorodilluorometh an e (Freon-22) EPA 82600_4_(6118)

Chloroethane (Ethyl chloride) EPA 8260D_4_(6/18)

Chloroethane (Ethyl chloride) EPA 8260D_4_(6118)

Chloroform EPA 8260D_4_(6/18)

Chloroform EPA 8260D_4_(6/18) cis-1, 2-Dichloroethylene EPA 8260D_4_(6118) cis-1,3-Dichloropropene EPA 8260D_4_(6118)

Dibromochloropropane EPA 8260D_4_{6118)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date 3/21/2021 Page 20 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Scope Expires: 3/20/2022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Solid and Chemical Materials Dibromomethane EPA 82600 _4_(6/18)

Dichlorodifluoromethane (Freon-12) EPA 8260D_4_(6118)

Diethyl ether EPA 8260D_4_(6/18)

Ethylbenzene EPA 82600_4_(6/18)

Hexachlorobutadiene EPA 82600_4_(6118) lodomethane (Methyl iodide) EPA 82600_4_(6118) lodomelhane (Methyl iodide) EPA 8260D_4_(6118) lsopropylbenzene EPA 8260D _4_(6118) m+p-xylene EPA 8260D_4_(6118)

Methyl bromide (Bromomethane) EPA 8260D_4_(6/18)

Methyl chloride (Chloromethane) EPA 8260D_4_(6118)

Methyl tert-butyl ether (MTBE) EPA 8260D_4_(6118)

Methylene chloride (Dichlaromethane) EPA 8260D_4_{6118)

Naphthalene EPA 8260D_4_(6/18) n-Butylbenzene EPA 82600_4_(6/18)

Nitrobenzene EPA 82600 _4_(6/18) n-Nitroso-di-n-butylamine EPA 82600_4_(6/18) n-Pro pylben zene EPA 8260D_4_(6/18) a-Xylene EPA 8260D_4_(6118) p-Xylene EPA 8260D_4_{6118)

Pyridine EPA 8260D_4_(6118) s ec-8utylbenzene EPA 82600 _4_(611 B)

Styrene EPA 82600 _4_(6118) tert-Butylbenzene EPA 82600_4_(6/18)

Tetrachloroethylene (Perchlaroethylene) EPA 8260D_4_(6/18)

Toluene EPA 8260D_4_(6/18)

Total Trihalamethanes EPA 8260D_4_(6/18)

Total Volatile Petroleum Hydrocarbons (VPH) EPA B260D_4_(6/18) lrans-1,2-Dichloroethylene EPA 82600_4_(6118) trans-1,3-0 ichloropropylene EPA 8260D_4_(6118) trans-1,4-Dichloro-2-bulene EPA 82600_4_(6/18)

Trichloroethene (Trichloroethylene) EPA 82600_4_(6/18)

Trichlorofluoromethane (Freon 11) EPA 82600_4_(6/18)

Vinyl chloride EPA 8260D_4_(6/18)

Xylene (total) EPA 82600 _4_(6/18) 1,2, 4-Tri chloroben ze ne EPA 8270E_6_(6/18) 1,2-0ibromo-3-chloropropane {DBCP) EPA 8270E_6_(6/18)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 3/21/2021 Page 21 of 25 Scope of Accreditation Report for Analek Labs, Inc - Moscow Scope Expires: 3/20/2022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Solid and Chemical Materials 1,2-Dichlorobenzene EPA 8270E_6_(6/18) 1,2-Dinitrobenzene EPA 8270E_6_(6/1 BJ 1,2-Diphenylhydrazine EPA 8270E_6_(6/18) 1,3,5-Trinitrobenzene (1,3,5-TNB) EPA 8270E_6_(6118) 1,3-Dichlorobenzene EPA 8270E_6_(6/18) 1,3-Dinitrobenzene (1,3-DN B) EPA 8270E_6_(6/18) 1,4-Dichlorobenzene EPA 8270E_6_(6/18) 1,4-Dinilrobenzene EPA 8270E_6_(6/18) 1-Methylnaphthalene EPA 8270E_6_(6/18) 2, 3,4.6-Tetrachloroph enoI EPA 8270E_6_(6/18) 2,3,5, 6-Tetrachlorophenol EPA 8270E_6_(6/18) 2,4,5-Trich Iorophe nol EPA 8270E_6_(6/18) 2,4,6-Trichlorophenol EPA 8270E_6_(6/18) 2,4-Dichlorophenol EPA 8270E_6_(6/18}

2,4-Dimethylphenol EPA 8270E_6_(6118) 2,4-Dinitrophenol EPA 8270E_6_{6118) 2,4-Dinitrotoluene (2,4-DNT) EPA 8270E_6_{6118) 2,6-Dinitrotoluene {2,6-DNTJ EPA 8270E_6_(6/18) 2-Chloronaphthalene EPA B270E_6_(6/18) 2-Chlorophenol EPA 8270E_6_(6/18) 2-Melhylnaphthalene EPA 8270E_6_(6/18) 2-Methylphenol (o-Cresol) EPA 8270E_6_(6/18) 2-Naphthylamine EPA 8270E_6_(6/18) 2-Nitroaniline EPA 8270E_6_(6/18) 2-Nitrophenol EPA 8270E_6_(6/18) 3,3'-Dichlorobenzidine EPA 8270E_6_(6/18) 3-NitroaniIine EPA 8270E_6_{6/18) 4,6-Dinilro-2-methyIphenoI EPA 8270E_6_(6/18) 4-Bromophenyl phenyl elher (BDE-3) EPA 8270E_6_(6/18) 4-ChIoro-3-melhylphenoI EPA 8270E_6_(6/18) 4-Chloroaniline EPA 8270E_6_(6/18) 4-Chlorophenyl phenylether EPA 8270E_6_(6/18) 4-Methylphenol (p-Cresol) EPA 8270E_6_(6/18) 4-Nitroaniline EPA 8270E_6_(6/18) 4-Nitrophenol EPA 8270E_6_(6/18)

Acenaphthene EPA 8270E_6_(6118)

Acenaphthylene EPA 8270E_6_(6/18)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 3/2112021 Page 22 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Scope Expires: 3/20/2022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Solid and Chemical Materials Aniline EPA 8270E_6_(6/18)

Anthracene EPA 8270E_6_(6/18)

Azinphos-methyl (Guthion) EPA 8270E_6_(6/18) 3 8enzidine EPA 8270E_6_(6/18) 8enzo(a)anthracene EPA 8270E_6_(6/18)

Benzo(a)pyrene EPA 8270E_6_(6/18)

Benzo(g, h, i)perylene EPA 8270E_6_(6/18)

Benzo(k)fluoranthene EPA 8270E_6_(611 B)

Benzo[b]fluoranthene EPA 8270E_6_(6/18)

Benzyl alcohol EPA 8270E_6_(6/18) beta-SH C (beta-H exachlorocycl oh ex ane) EPA 8270E_6j6/18) 3 bis(2-Chloroethoxy)methane EPA 8270E_6_(6118) bis(2-Chloroethyl) ether EPA 8270E_6_(6/18) bis(2-Chloroisopropyl) ether EPA 8270E_6_(6/18)

Butyl benzyl phthalate EPA 8270E_6_(6I18)

Carbazole EPA 8270E_6_(6/18)

Carbophenothion EPA 8270E_6_(6/18}

Chlorpyrifos EPA 8270E_6_(6/18) 3 Chrysene EPA 8270E_6_(6I18)

Coumaphos EPA 8270E_6_(6/18) 3 Demeton-s EPA 8270E_6_(6/18)

Di(2-ethylhexyl)adipate EPA 8270E_6_(6/18)

Di(2-ethylhexyl)phthalate EPA 8270E_6_(6/18)

Dibenz(a,h) anthracene EPA 8270E_6_(6/18)

Dibenzofuran EPA 8270E_6_(6/1 B)

Dichlorovos (DDVP, Dichlorvos) EPA 827DE_6_(6/18) 3 Diethyl phthalate EPA 8270E_6_(6/18)

Dimethoate EPA 8270E_6_(6/18) 3 Dimethyl ph th alate EPA 8270E_6_(6/18)

Di-n-butyl phihalate EPA 8270E_6_(6/18)

Di-n--0clyl phthalate EPA 8270E_6_(6I18}

Dioxathion EPA 8270E_6_(6/18) 3,4 Disulfoton EPA 8270E_6_(6/18) 3 EPN EPA 8270E_6_(6l18)

Famphur EPA 8270E_6_(6/18)

Fensulfothion EPA 8270E_6_(6/18) 3 Fenthion EPA B270E_6_(6/18) 3 Washington State Department Of Ecology Laboratory Accreditation Unit Effective Date: 3/2112021 Page 23 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Scope Expires: 3120/2022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Solid and Chemical Materials Fluoranthene EPA 8270E_6_(6/18)

Fluorene EPA 8270E_6_(6118)

Hexach lorobenzene EPA 8270E_6_{6/18)

Hexachlorobutadiene EPA B270E_6_(6/18)

Hexachlarocyclopentadiene EPA 8270E_6_(6l18)

Hexachloroelhane EPA 8270E_6_(6/18) lndeno(1,2,3-cd) pyrene EPA 8270E_6_(6/18) lsophorone EPA 8270E_6_(6/18) rn,p Cresol EPA 8270E_6_(6/18)

Malathion EPA 8270E_6_(6/18) 3 Methyl parathion (Parathion, methyl) EPA 8270E_6_{6118) 3 Mevinphos EPA 8270E_6_{6/18) 3 Monocrotophos EPA 8270E_6_(6/18) 3,4 Naled EPA 8270E_6_(6/18) 3 Naphthalene EPA 8270E_6_(6/18)

Nitrobenzene EPA 8270E_6_(6/18) n-Nitrosodimethylamine EPA 8270E_6_(6/18) n-Nitroso-<.li-n-butylamine EPA 8270E_6_(6/18)

N-N itros o-<.li-n-propylamine EPA 8270E_6_(6/18) n-Nitrosodiphenylamine EPA 8270E_6_(6/18)

Parathion EPA 8270E_6_(6/18) 3 Pentachlorophenol EPA 8270E_6_(6/18)

Phenanthrene EPA 8270E_6_(6/18)

Phenol EPA 8270E_6_(6/18)

Phorate EPA 8270E_6_(6l18) 3 Phosmet (lmidan) EPA 8270E_6_(6/18) 3,4 Pyrene EPA 8270E_6_(6/18)

Pyridine EPA 8270E_6_(6/18}

Sulfotepp EPA 8270E_6_(6118) 3 Terbufos EPA 8270E_6_(6/18) 3.4 Tetrachlorvinphos (Stirophos, Gardona) EPA 8270E_6_(6/18) 3 Diesel range organics {DRO) WDOE NWTPH-Dx_(1997) 2 Gasoline range organics (GRO) WDOE NWTPH-Gx_(1997) 2 Washington State Department of Ecology Laboratory Accreditation Unit Elfecli 11e Date: 3121 /2021 Page 24 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Scope Expires: 312012022 C595-21

Anatek Labs, Inc - Moscow Matrix/Analyte Method Notes Accredited Parameter Note Detail (1) Accreditation is based in part on recognition of Florida Department of Health NELAP accreditation. (2) Analytical Methods for Petroleum Hydrocarbons, Publication No. ECY 97-602, June 1997. (3) Tributyl phosphate used for internal standard and normal 8270 surrogates used. {4) Accreditation is limited to water only. (5) Anatek Labs, Inc.

SOP for determination of methamphetamine by HPLC-MS. (6) Approved for compliance testing only when holding time is met.(7) Method not approved for NPDES testing. (8)Accreditation based in part on recognition of Idaho Department of Health and Welfare accreditation. (9) Provisional accreditation pending submittal of acceptable Proficiency Testing (PT) results (WAC 173-50-110).

04/13/2021 Authentication Signature Date Rebecca Wood, Lab Accreditation Unit Supervisor Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 312112021 Page 25 of 25 Scope of Accreditation Report for Anatek Labs, Inc - Moscow Scope Expires: 3/2012022 C595-21

'Ollf£ ~fad£ of ~aslfington Department of Ecology Pace Analytical Services, LLC - Minneapolis MN Minneapolis, MN has complied with provisions set forth in Chapter 173-50 WAC and is hereby recognized by the Department of Ecology as an ACCREDITED LABORATORY for the analytical parameters listed on the accompanying Scope of Accreditation. This certificate is effective February 19, 2021 and shall expire February 18, 2022.

Witnessed under my hand on February 23, 202] .

~~

Rebecca Wood Lab Accreditation Unit Supervisor Laboratory ID C486

WASHINGTON STATE DEPARTMENT OF ECOLOGY ENVIRONMENTAL LABORATORY ACCREDITATION PROGRAM SCOPE OF ACCREDITATION Pace Analytical Services, LLC - Minneapolis MN Minneapolis, MN is accredited for the analytes listed below using the methods indicated. Full accreditation is granted unless stated otherwise in a note. EPA is the U.S. Environmental Protection Agency. SM is "Standard Methods for the Examination of Water and Wastewater." SM refers to EPA approved method versions. ASTM is the American Society for Testing and Materials. USGS is the U.S Geological Survey. AOAC is the Association of Official Analytical Chemists. Other references are described in notes.

Matrix/Analyte Method Notes Air Carbon dioxide EPA 3C Carbon monoxide EPA 3C Helium EPA3C Methane EPA3C Nitrogen EPA3C Oxygen EPA 3C 1,2.4-Trimethylbenzene EPA T0-3 Benzene EPA T0-3 Ethane EPA T0-3 Ethene EPA T0-3 Ethylbenzene EPA T0-3 m+p-xylene EPA T0-3 Methane EPA T0-3 Methyl tert-butyl ether (MTBE) EPA T0-3 n-Hexane EPA T0-3 o-Xylene EPA T0-3 Toluene EPA T0-3 Total Hydrocarbons C1-C4 EPA T0-3 Total Hydrocarbons C6-C10 EPA T0-3 Xylene (total) EPA T0-3 1,1,1-Trichloroethane EPA T0-15 Rev. 2 (1999) 1,1,2,2-Tetrachloroethane EPA T0-15 Rev. 2 (1999) 1, 1,2-Trichloro-1,2,2-trifluoroethane {Freon 113) EPA T0-15 Rev. 2 (1999) 1, 1,2-Trichloroethane EPA T0-15 Rev. 2 (1999) 1, 1-Dichloroethane EPA T0-15 Rev. 2 (1999) 1, 1-Dichloroethylene EPA T0-15 Rev. 2 (1999)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/19/2021 Page 1 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/18/2022 C486-21

Pace Analytical Services, LLC

Minneapolis MN Matrix/Analyte Method Notes Air 1,2,3-Trimethylbenzene EPA T0-15 Rev. 2 (1999) 1,2.4-Trichlorobenzene EPA T0-15 Rev. 2 (1999) 1,2,4-Trimethylbenzene EPA T0-15 Rev. 2 (1999) 1,2-Dibromoethane (EDB, Ethylene dibromide) EPA T0-15 Rev. 2 (1999) 1,2-Dichloro-1, 1,2,2-tetrafiuoroethane (Freon 114) EPA T0-15 Rev 2 (1999) 1,2-Dichlorobenzene EPA T0-15 Rev. 2 (1999) 1,2-Dichloroethane (Ethylene dichloride) EPA T0-15 Rev. 2 (1999) 1,2-Dichloropropane EPA T0-15 Rev. 2 (1999) 1,3,5-Trimethylbenzene EPA T0-15 Rev. 2(1999) 1,3-Butadiene EPA T0-15 Rev. 2 (1999) 1,3-Dichlorobenzene EPA T0-15 Rev. 2 (1999) 1,4-Dichlorobenzene EPA T0-15 Rev. 2 (1999) 1,4-Dioxane (1,4- Diethyleneoxide) EPA T0-15 Rev. 2 (1999) 1-Propene EPA T0-15 Rev. 2 (1999) 2,2,4-Trimethylpentane EPA T0-15 Rev. 2 (1999) 2-Butanone (Methyl ethyl ketone, MEK) EPA T0-15 Rev. 2 (1999) 2-Hexanone EPA T0-15 Rev. 2 (1999) 4-Ethyltoluene EPA T0-15 Rev. 2 (1999) 4-lsopropyltoluene (p-Cymene) EPA T0-15 Rev. 2 (1999) 4-Methyl-2-pentanone (MIBK) EPA T0-15 Rev. 2 (1999)

Acetone EPA T0-15 Rev. 2 (1999)

Acrolein (Prcpenal) EPA T0-15 Rev. 2 (1999)

Acrylonitrile EPA T0-15 Rev. 2 (1999)

Allyl chloride (3-Chloropropene) EPA T0-15 Rev. 2 (1999)

Benzene EPA T0-15 Rev. 2 (1999)

Benzyl chloride EPA T0-15 Rev. 2 (1999)

Bromodichloromethane EPA T0-15 Rev. 2 (1999)

Bromoform EPA T0-15 Rev. 2 (1999)

Carbon disulfide EPA T0-15 Rev. 2 (1999)

Carbon tetrachloride EPA T0-15 Rev. 2 (1999)

Chlorobenzene EPA T0-15 Rev. 2 (1999)

ChIorod ibromomethane EPA T0-15 Rev. 2 (1999)

Chlorodifluoromethane (Freon-22) EPA T0-15 Rev. 2 (1999)

Chloroethane EPA T0-15 Rev. 2 (1999)

Chlorofonn EPA T0-15 Rev. 2 (1999) ci s-1, 2-Dichloroethylene EPA T0-15 Rev. 2 (1999) cis-1, 3-Dichloropropene EPA T0-15 Rev. 2 (1999)

Washington State Department of Ecology Laboratory Accreditation Unit Effeclive Date: 2/19/2021 Page 2 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC

Minneapolis MN Scope Expires: 2/18/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN MatrixfAnalyte Method Notes Air Cyclohexane EPA T0-15 Rev. 2 (1999)

Dichlorodifluoromethane (Freon-12) EPA T0-15 Rev. 2 (1999)

Di-isopropylether (DIPE) EPA T0-15 Rev. 2 (1999)

Ethanol EPA T0-15 Rev. 2 (1999)

Ethyl acetate EPA T0-15 Rev. 2 (1999)

Ethylbenzene EPA T0-15 Rev. 2 (1999)

Ethyl-t-butylether (ETBE) EPA T0-15 Rev. 2 (1999)

Hexachlorobutadiene EPA T0-15 Rev. 2 (1999) lsopropyl alcohol (2-Propanol) EPA T0-15 Rev. 2 (1999) lsopropylbenzene EPA T0-15 Rev. 2 (1999) m+p-xylene EPA T0-15 Rev. 2 (1999)

Methyl bromide (Bromomethane) EPA T0-15 Rev. 2 (1999)

Methyl chloride (Chloromethane) EPA T0-15 Rev. 2 (1999)

Methyl methacrylate EPA T0-15 Rev. 2 (1999)

Methyl tert-butyl ether (MTBE) EPA T0-15 Rev. 2 (1999)

Methylcyclohexane EPA T0-15 Rev. 2 (1999)

Methylene chloride (Dichloromethane) EPA T0-15 Rev. 2 (1999)

Naphthalene EPA T0-15 Rev. 2 (1999) n-Butylbenzene EPA T0-15 Rev. 2 (1999) n-Heptane EPA T0-15 Rev. 2 (1999) n-Hexane EPA T0-15 Rev. 2 (1999) n-Propylbenzene EPA T0-15 Rev. 2 (1999) a-Xylene EPA T0-15 Rev. 2 (1999) sec-Butylbenzene EPA T0-15 Rev. 2 (1999)

Styrene EPA T0-15 Rev. 2 (1999) lert-amylmethylether (TAME) EPA T0-15 Rev. 2 (1999) tert-Butyl alcohol EPA T0-15 Rev. 2 (1999) tert-Bulylbenzene EPA T0-15 Rev. 2 (1999)

Tetrachl oro ethylene (PerchIoroethylene) EPA T0-15 Rev 2 (1999)

Tetrahydrofu ran (THF) EPA T0-15 Rev. 2 (1999)

Toluene EPA T0-15 Rev. 2 (1999)

Total Hydrocarbons C1-C4 EPA T0-15 Rev. 2 (1999)

Total Hydrocarbons C6-C 10 EPA T0-15 Rev. 2 (1999) trans-1,2-Dichloroethylene EPA T0-15 Rev. 2 (1999) lrans-1,3-Dichloropropylene EPA T0-15 Rev. 2 (1999)

Trichloroethene (Trichloroethylene) EPA T0-15 Rev 2 (1999)

Trichlorofluoromethane (Freon 11) EPA T0-15 Rev. 2 (1999)

Washington Slate Department of Ecology Laboratory Accreditation Unit Effective Date: 2/19/2021 Page 3 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/18/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Air Vinyl acetate EPA T0-15 Rev. 2 (1999)

Vinyl bromide EPA T0-15 Rev. 2 (1999)

Vinyl chloride EPA T0-15 Rev. 2 (1999)

Xylene (total) EPA T0-15 Rev. 2 (1999)

Drinking Water Turbidity EPA 180.1_2_1993 Bromide EPA 3000_2.1_1993 Chloride EPA 300.0_2. U 993 Fluoride EPA 300.0_2.1_1993 Nitrate EPA 300 0_2.1_1993 Nitrite EPA 300.0_2.1_1993 Sulfate EPA 300.0_2.1_1993 Nitrate EPA 353.2_2_1993 Nitrite EPA 353.2_2_1 993 Alkalinity SM 2320 B-2011 Specific Conductance SM 2510 B-2011 Solids, Total Dissolved SM 2540 C-2011 Chlorine (Residual), Total SM 4500-CI G-2011 Chloride SM 4500-CI- E-2011 Cyanide, Total SM 4500-CN- E-2011 Fluoride SM 4500-F- C-2011 pH SM 4500-H+ B-2011 1,3 Nitrite SM 4500-NO2- B-2011 Aluminum EPA 200.8_5.4_1994 Antimony EPA 200.8_5.4_1994 Arsenic EPA 200.8_5.4_1994 Barium EPA 200.8_5.4_1994 Beryllium EPA 200.8 _5.4_1994 Cadmium EPA 200.8_5.4_1994 Chromium EPA 200.8_5.4_1994 Copper EPA 200.8_5.4_1994 lead EPA 200.6_5.4_1994 Manganese EPA 200.8_5.4_1994 Nickel EPA 200.8_5.4_1994 Selenium EPA 200.8_5.4_1994 Silver EPA 200.8_5.4_1 994 Thallium EPA 200.8_5.4_1994 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/19/2021 Page4of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 211B12022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Drinking Water Total Uranium EPA 200.8_5.4_1994 Zinc EPA 200.8_5.4_1994 Mercury EPA 245.1 _3_1994 2,3,7,8-Tetrachlorodibenzo-p-<lioxin (TCDD) EPA 16138_1994 1,1, 1,2-Tetrachloroethane EPA 524.2_4.1 _1995 1,1,! -Trichloroethane EPA 524.2_4.1_1995 1,1,2,2-Tetrachloroethane EPA 524.2_4.1 _1995 1,1,2-Trichloroethane EPA 524.2_4.1 _1995 1,1-Dichloroelhane EPA 524.2_4.1 _1995 1,1-Dichloroethylene EPA 524.2_4.1 _1995 1,1-Dichloropropene EPA 524.2_4.1 _1995 1,2,3-Trichlorobenzene EPA 524.2_4.1 _1995 1,2,3-Trichloropropane EPA 524.2_4.1 _1995 1,2,4-Trichlorobenzene EPA 524.2_4.1 _1995 1,2,4-Trimethy!benzene EPA 524.2_4.1 _1995 1,2-Dichlorobenzene EPA 524.2_4.1 _1995 1,2-Dichloroethane (Ethylene dichloride) EPA 524.2_4.1 _1995 1,2-DichIoropro pane EPA 524.2_4.1 _1995 1,3-Dichlorobenzene EPA 524.2_4.1 _1995 1,4-Dichlorobenzene EPA 524.2_4.1 _1995 2,2-Dichloropropane EPA 524.2_4. 1_1 995 2-Chlorotoluene EPA 524.2_4.1 _1995 4-Chlorotol uene EPA 524.2_4.1 _1995 Benzene EPA 524.2_4.1 _1995 Bromobenzene EPA 524.2_4.1 _1 995 Bromochlorometh ane EPA 524.2_4.1 _1995 Bromodichloromethane EPA 524.2_4.1 _1 995 Bromoform EPA 524.2_4.1 _1995 Carbon tetrachloride EPA 524.2_4.1 _1995 Chlorobenzene EPA 524.2_4.1 _1995 Chlorodibromomethane EPA 524.2_4.1 _1995 Chloroethane (Ethyl chloride) EPA 524.2_4.1 _1995 Chloroform EPA 524.2_4.1_1995 cis-1,2-Dichloroethylene EPA 524.2_4.1 _1995 cis-1, 3-Dichloroprope ne EPA 524.2_4.1_1995 Dibromomethane EPA 524.2_4.1_1995 Dichlorodilluoromethane (Freon-12) EPA 524.2_4.1_1995 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/1912021 Page 5 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2118/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Drinking Water Dichloromethane (DCM, Methylene chloride) EPA 524.2_4. U 995 Ethylbenzene EPA 524.2_4.1 _1995 Hexachlorobu tadie ne EPA 524.2_4.1 _1995 lsopropylbenzene EPA 524.2_4.1 _1995 Methyl bromide (Bromomethane) EPA 524.2_4.1 _1995 Methyl chloride (Chloromelhane) EPA 524.2_4.1_1995 Methyl tert-butyl ether (MTBE) EPA 524.2_4.1_1995 Naphthalene EPA 524.2_4.1_1995 n-Butylbenzene EPA 524,2_4.1 _1995 n-Propylbenzene EPA 524.2_4.1_1995 sec-Butylbenzene EPA 524,2_4.1 _1995 Styrene EPA 5242_4 U 995 tert-Butylbenzene EPA 524.2_4.1 _1995 Tetrachloroethylene (Perchloroethylene) EPA 524.2_4.1_1995 Toluene EPA 524.2_4.1 _1995 Total Trihalomethanes EPA 524.2_4.1_1995 trans-1,2-Dichloroethylene EPA 524.2_41_1995 trans-1,3-Dichloropropylene EPA 524.2_4.1_1995 Trichloroethene (Trichloroethylene) EPA 524.2_4.1_1995 Trichlorofiuoromelhane (Freon 11) EPA 524.2_4.1_1995 Vinyl chloride EPA 524.2_4.1 _1995 Xylene (total) EPA 524.2_4.1_1995 N-Ethylpertluorooctane sulfonamido acetic acid (NEtFOSAA) EPA 537.1_(11118)

N-Methylperfluorooctane sulfonamide acetic acid (N MeFOSAA) EPA 537.1_(11118)

Perlluorobutane sulfonate (PFBS) EPA 537.1_(11118)

Perlluorodecanoic acid (PFDA) EPA 537.1_(11118)

Perfluorododecanoic acid (PFDoA) EPA 537.1_(11118)

Perfluoroheplanoic acid (PFHpA) EPA 537.1_(11/18)

Perfluorohexane sulfonate (PFHxS) EPA 537.1_(11/18)

Perlluorohexanoic acid (PFHxA) EPA 537.1_(11/18)

Perfluorononanoic acid (PFNA) EPA 537.1_(11/18)

Perfluorooctane su,tonate (PFOS) EPA 537.1-(11118)

Perfluorooctanoic acid (PFOA) EPA 537.1_(11118)

Perfluorotetradecanoic acid (PFTeDA) EPA 537.1_(11118)

Perfluorolridecanoic acid (PFTrDA) EPA 537.1_(11118)

Perfluoroundecanoic acid (PFU nA) EPA 537.1_(11118)

Non-Potable Water Washington State Department of Ecology Laboratory Accreditation Unit Effective Dale: 2/19/2021 Page6of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/1812022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Non-Potable Water Sulfate ASTM D516-11 Specific Conductance EPA 120.1_1982 Solids, Total Volatile EPA 160.4_1971 non-Polar Extractable Material (TPH) EPA 16648 (SGT-HEM) n-Hexane Extractable Material (O&G) EPA 16648 -10 (HEM)

Turbidity EPA 180.1_2_1993 Bromide EPA 300.0_2.1 _1993 Chloride EPA 300.0_2.1 _1993 Fluoride EPA 300.0_2.1 _1993 Nitrate EPA 300.0_2.1_1993 Nitrite EPA 300.0_2.1 _1993 Sulfate EPA 300.0_2.1_1993 Ammonia EPA 350.1_2_1993 Nitrate EPA 353.2_2_1993 Nitrate + Nitrite EPA 353.2_2_ 1993 Nitrite EPA 353.2_2_1993 Chemical Oxygen Demand (COD) EPA 410.4_2_1993 Alkalinity SM 2320 B-2011 Hardness (calc.) SM 2340 B-2011 Specific Co nductanee SM 2510 B-2011 Solids, Total SM 2540 B-2011 Solids, Total Dissolved SM 2540 C-2011 Solids, Total Suspended SM 2540 D-2011 Solids, Settleable SM 2540 F-2011 Chromium, Hexavalent SM 3500-Cr B-2011 Chloride SM 4500-CI- E-2011 Cyanide, Total SM 4500-CN- E-2011 Cyanides, Amenable to Chlorination SM 4500*CN- G-2011 Fluoride SM 4500-F- C-2011 1 pH SM 4500-H+ B-2011 1,3 Nitrite SM 4500-NO2- 8-2011 Nitrate + Nitrite SM 4500-NO3- H-2011 Phosphorus, Total SM 4500-P F-2011 Orthophosphate SM 4500-P G-2011 Chemical Oxygen Demand (COD) SM 5220 D-2011 Aluminum EPA 200.7_4.4_1994 Antimony EPA 200.7_4.4_1994 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/19/2021 Page 7 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/18/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Non-Potable Water Arsenic EPA 200 7_4.4_1994 Barium EPA 2007_4.4_1994 Beryllium EPA 200.7_4.4_1994 Boron EPA 200.7_4.4_1994 Cadmium EPA 200.7_4.4_1994 Calcium EPA 200.7_4.4_1994 Chromium EPA 200.7_4.4_1994 Cobalt EPA 200.7 _4.4_1994 Copper EPA 200.7_4.4_1994 Hardness, Total (as CaCO3) EPA 200.7 _4.4_1994 Iron EPA 200.7 _4.4_1994 Lead EPA 200.7 _4.4_1994 Magnesium EPA 200.7 _4.4_1994 Manganese EPA 200.7 _4.4_1 994 Molybdenum EPA 200.7 _4.4_1994 Nickel EPA 200.7 _4.4_1994 Potassium EPA 200.7_4.4_1994 Selenium EPA 200.7_4.4_1994 Silver EPA 200.7_4.4_1994 Sodium EPA 200.7_4.4_1994 Thallium EPA 200.7_4.4_1994 Tin EPA 200.7_4.4_1994 Titanium EPA 200.7_4.4_1994 Vanadium EPA 200.7_4.4_ 1994 Zinc EPA 200.7 _4.4_1994 Aluminum EPA 200.8_5.4_1994 Antimony EPA 200.8_5.4_1994 Arsenic EPA 200.8_5.4_1994 Barium EPA 200.8_5.4_1994 Beryllium EPA 200.8_5.4_1994 Bismuth EPA 200.8_5.4_1994 Boron EPA 200.8_5.4_1994 Cadmium EPA 200.8_5.4_1994 Calcium EPA 200.8_5.4_1994 Chromium EPA 200.8_5.4_1994 Cobalt EPA 200.8_5.4_1994 Copper EPA 200.8_5.4_1994 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2119/2 021 Page 8 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/1812022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Non-Potable Water Iron EPA 200.8_5.4_t 994 Lead EPA 200.8_5.4_1994 Lithium EPA 200.8_5.4_1994 Magnesium EPA 200.8_5.4_1994 Manganese EPA 200.8_5.4_1994 Molybdenum EPA 200.8_5.4_1994 Nickel EPA 200.8_5.4_1994 Palladium EPA 200.8_5.4_1994 Platinum EPA 200.8_5.4_1994 Potassium EPA 200.8_5.4_1994 Selenium EPA 200 8_5 4_1994 Silicon EPA 200.8_5.4_1994 Silver EPA 200.8_5.4_1994 Sodium EPA 200.8_5.4_1994 Strontium EPA 200.8_5.4_1994 Thallium EPA 200.8_5.4_1994 Tin EPA 200.8_5.4_1994 Titanium EPA 200.8_5.4_1994 Uranium EPA 200.8_5.4_1994 Vanadium EPA 200.8_5.4_1994 Zinc EPA 200.8_5.4_1994 Mercury EPA 245.1 _3_1994 Diesel range organics (DRO) WDOE NWTPH-Dx_(1997) 2,5 Gasoline range organics (GRO) WDOE NWTPH-Gx_(1997) 2,5 1,2,3,4,6,7,8,9-0ctachlorodibenzofuran (OCDF) EPA 16138_1994 1,2,3,4,6,7,8,9-0ctachlorodibenzo-p-dioxin (OCDD) EPA 16138_1994 1,2,3,4,6,7,8-Hpcdd EPA 1613B_1994 1,2,3,4,6,7,8-Hpcdf EPA 16138_1994 1,2,3,4,7,8,9-Hpcdf EPA 16138_1994 1,2,3,4,7,8-Hxcdd EPA 16138_1994 1,2,3,4,7,8-Hxcdf EPA 16138_1994 1,2,3,6, 7,8-Hxcdd EPA 1613B_1994 1,2,3,6,7,8-Hxcdf EPA 16138_1994 1,2,3,7,8,9-Hxcdd EPA 16138_1994 1,2,3,7,8,9-Hxcdf EPA 1613B_1994 1,2,3,7,8-Pecdd EPA 1613B_1994 1,2,3,7,8-Pecdf EPA 16138_1994 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/1912021 Page 9 of 31 Scope of Accreditation Report for Pace Analytical SeNices, LLC" Minneapolis MN Scope Expires: 2118/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Non-Potable Water 2,3.4, 6, 7,8-Hxcdf EPA 16138_1994 2,3,4,7,8-Pecdf EPA 16138_1994 2,3,7,8-TCDD EPA 16138_1994 2,3,7,8-TCDF EPA 16138_1994 Hpcdd, total EPA 16138_1994 Hpcdf, total EPA 1613B_1994 Hxcdd, total EPA 16138_1994 Hxcdf, total EPA 1613B_1994 Pecdd, total EPA 16138_1994 Pecdf, total EPA 16138_1994 TCDD, total EPA 16136_1994 TCDF, total EPA 16138_1994 2,2',3,3',4,4',5,5',6-Nonachlorobiphenyl (BZ-206) EPA 1668C_2010 2,2' ,3,3',4,4' ,5,5'-Octachlorobiphenyl (BZ-194) EPA 1668C_2010 2,2',3,3'.4,4',5,6,6'-Nonachlorobiphenyl (BZ-207) EPA 1668C__2010 2,2',3,3'.4,4',5,6-Octachlorobiphenyl (BZ-195) EPA 1668C__2010 2,2',3,3',4,4',5,6'-Octachlorobiphenyl (BZ-196) EPA 1668C_2010 2,2',3,3',4,4',5-Heptachlorobiphenyl (BZ-170) EPA 1668C_2010 2,2',3,3',4,5,5',6,6'-Nonachlorobiphenyl (BZ-208) EPA 1668C_2010 2,2' ,3,3',4,5,5'-Heptachlorobiphenyl (BZ-172) EPA 1668C_2010 2,2',3,3',4,5',6,6'-Octachlorobiphenyl (BZ-201) EPA 1668C_2010 2,2',3,3',4,5,6'-Heptachlorobiphenyl (BZ-174) EPA 1668C__.2010 2,2',3,3',4,5',6-Heptachlorobiphenyl (BZ-175) EPA 1668C_2010 2,2',3,3',4,5',6'-Heptachlorobiphenyl (BZ-177) EPA 1668C_2010 2,2' ,3,3',4,5'-Hexachlorobiphenyl (82-130) EPA 166BC_2010 2,2' ,3,3',4,6,6'-Heptachlorobiphenyl (82-176) EPA 1668C_2010 2,2',3,3',4,6-Hexachlorobiphenyl (82-131) EPA 1668C_2010 2,2',3,3',4,6'-Hexachlorobiphenyl (BZ-132) EPA 1668C_2010 2, 2',3,3', 4-Pentachloro bi phenyl (BZ-82) EPA 1668C_2010 2,2',3,3',5,5',6,6'-Octachlorobiphenyl (BZ-202) EPA 1668C_2010 2,2' ,3,3',5,5',6-Heptachlorobiphenyl (BZ-178) EPA 1668C_2010 2,2',3,3',5,5'-Hexachlorobiphenyl (82-133) EPA 1668C_2010 2,2',3,3',5,6,6'-Heptachlorobiphenyl (BZ-179) EPA 1668C_2010 2,2',3,3',5-Pentachlorobiphenyl (BZ-83) EPA 1668C_2010 2,2', 3,3',6,6'-Hexachlorobiphenyl (BZ-136) EPA 1668C_2010 2,2',3,3',6-Pentachlorobiphenyl (BZ-84) EPA 1668C_2010 2,2' ,3,4,4',5,5',6-0ctachlorobiphenyl (8Z-203) EPA 1668C_2010 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/1912021 Page 10 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 211612022 C486-21

Pace Analytical Services. LLC - Minneapolis MN Matrix{Analyte Method Notes Non-Potable Water 2,2' ,3,4,4',5,6,6'-Octachlorobiphenyl (BZ-204) EPA 1668C_2010 2,2' ,3,4,4',5,6-Heptachlorobiphenyl {BZ-181) EPA 1668C_2010 2,2',3,4,4',5,6'-Heptachlorobiphenyl (BZ-182) EPA 1668C_2010 2,2',3,4,4',5-Hexachlorobiphenyl {BZ-137) EPA 1668C_2010 2,2',3,4,4'.6,6'-Heptachlorobiphenyl (BZ-184) EPA 1668C_2010 2,2',3,4',5,5' ,6-Heptachlorobiphenyl (BZ-187) EPA 1668C_2010 2,2',3,4,5,5'-Hexachlorobiphenyl (BZ-141) EPA 1668C_2010 2,2',3,4',5,5'-Hexachlorobiphenyl (BZ-146) EPA 1668C_2010 2,2',3,4,5,6,6'-Heptachlorobiphenyl (BZ-186) EPA 1668C_2010 2,2',3,4',5,6,6'-Heptachlorobiphenyl (BZ-188) EPA 1668C_2010 2,2' ,3,4,5,6-Hexachlorobi phenyl (BZ-142) EPA 1668C_2010 2,2' ,3,4,5',6-Hexachlorobiphenyl (BZ-144) EPA 1668C_2010 2,2',3,4',5,6'-Hexachlorobiphenyl (BZ-148) EPA 1668C_2010 2,2',3,4,6,6'-Hexachlorobiphenyl (BZ-145) EPA 1668C_2010 2,2',3,4',6,6'-Hexachlorobiphenyl (BZ-150) EPA 1668C_2010 2,2',3,4,6'-Pentachlorobiphenyl (BZ-89) EPA 1668C_2010 2,2',3,4'-Tetrachlorobiphenyl (BZ-42) EPA 1668C_2010 2,2',3, 5, 5'-Pentachlorobi phenyl (BZ-92) EPA 1668C_2010 2,2',3,5,6,6'-Hexachlorobiphenyl (BZ-152) EPA 1668C_2010 2, 2', 3, 5, 6'-Pentachlorobiph enyl (BZ-94) EPA 1668C_2010 2,2' ,3,5',6-Pentachlorobiphenyl (BZ-95) EPA 166BC_2010 2,2',3,6,6'-Pentachlorobiphenyl (BZ-96) EPA 1668C_2010 2,2',3,6'-Tetrachlorobiphenyl (BZ-46) EPA 1668C_2010 2,2',3-Trichlorobiphenyl (BZ-16) EPA 1668C_2010 2,2',4,4',5,6'-Hexachlorobiphenyl (BZ-154) EPA 1668C_2010 2,2'.4.4',5-Pentachlorobiphenyl (BZ-99) EPA 1668C_2010 2,2',4,4',6,6'-Hexachlorobiphenyl (BZ-155) EPA 1668C_2010 2,2',4,5',6-Pentachlorobiphenyl (BZ-103) EPA 1668C_2010 2,2',4,5-Tetrachlorobiphenyl (BZ-48} EPA 1668C_2010 2,2',4,6,6'-Pentachlorobiphenyl (BZ-104) EPA 1668C_2010 2,2' ,4-Trichlorobiphenyl (BZ-17) EPA 1668C_2010 2,2',5,5'-Tetrachlorobiphenyl (BZ-52) EPA 1668C_2010 2,2',6,6'-Tetrachlorobiphenyl (BZ-M) EPA 1668C_2010 2,2',6-Trichlorobiphenyl (BZ-19) EPA 1668C__2010 2,2'-Dichlorobiphenyl (BZ-4) EPA 1668C_2010 2,3,3',4,4',5,5',6-Octachlorobiphenyl (BZ-205) EPA 1668C_2010 2,3,3',4,4',5,5'-Heptachlorobiphenyl (BZ-189) EPA 1668C_2010 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2119/2021 Page 11 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/18/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Non-Potable Water 2,3,3',4,4',5,6-Heptachlorobiphenyl (BZ-190) EPA 1668C_2010 2,3,3',4,4',5',6-Heptachlorobiphenyl {BZ-191) EPA 1668C_2010 2,3,3',4,4',6-Hexachlorobiphenyl (BZ-158) EPA 1668C_2010 2,3,3',4,4'-Pentachlorobiphenyl (BZ-105) EPA 1668C_2010 2,3,3',4,5,5',6-Heptachlorobiphenyl (BZ-192) EPA 1668C_2010 2,3,3',4,5,5'-Hexachlorobiphenyl (BZ-159) EPA 1668C_2010 2,3,J' ,4',5,5'-Hexachlorobiphenyl (BZ-162) EPA 1668C_2010 2,3,3',4,5,6-Hexachlorobiphenyl (BZ-160) EPA 1668C_2010 2,3,3',4',5',6-Hexachlorobiphenyl (BZ-164) EPA 1668C_2010 2,3,3',4,5',6-Hexachlorobiphenyl (BZ-161) EPA 1668C_2010 2,3,3',4,5-Pentachlorobiphenyl (BZ-106) EPA 1668C_2010 2,3,J',4',5'-Pentachlarobiphenyl (BZ-122) EPA 1668C_2010 2,3,3',4,6-Pentachlorobiphenyl (BZ-109) EPA 1668C_2010 2,3,3',4-Tetrachlarobiphenyl (BZ-55) EPA 1668C_2010 2,3,3'.4'-Tetrachlorobiphenyl (BZ-56) EPA 1668C_2010 2,3,3' ,5,5',6-Hexachlorobiphenyl (BZ-165) EPA 1668C_2010 2,3,3',5,5'-Pentachlarobiphenyl (BZ-111) EPA 1668C_2010 2,3,3',5,6-Pentachlarobiphenyl (BZ-112) EPA 1668C_2010 2,3,3',5-Tetrachlarobiphenyl (BZ-57) EPA 1668C_2010 2,3,3',5'-Tetrachlorobiphenyl (BZ-58) EPA 1668C_2010 2,3'.4,4',5,5'-Hexachlorobiphenyl (BZ-167) EPA 1668C_2010 2,3,4,4' ,5-Pentachlorobiphenyl (BZ-114) EPA 1668C_2010 2,3'.4.4',5-Pentachlorobiphenyl (BZ-118) EPA 1668C_2010 2,3',4,4',5'-Pentachlorobiphenyl (BZ-123) EPA 1668C_2010 2,3,4,4'-Tetrachlorobiphenyl (BZ-60) EPA 1668C_2010 2,3',4,4'-Tetrachlorobiphenyl (BZ-66) EPA 1668C_2010 2,3',4,5,5'-Pentachlorobiphenyl (BZ-120) EPA 1668C_2010 2,3',4.5',6-Pentachlorobiphenyl (BZ-121) EPA 1668C_2010 2,3,4',5-Tetrachlorobiphenyl (BZ-63) EPA 1668C_2010 2,3',4,5'-Tetrachlorobiphenyl (BZ-68) EPA 1668C_2010 2,3',4, 5-Tetrachlorabi phenyl (BZ-67) EPA 1668C_2010 2,3,4',6-Tetrachlarabiphenyl (BZ-64) EPA 1668C_2010 2,3,4'-Trichlorabiphenyl (BZ-22) EPA 1668C_2010 2,3' ,4-Trichlarobiphenyl (BZ-25) EPA 1668C_2010 2,3',5,5'-Tetrachlorobiphenyl (BZ-72) EPA 1668C_2010 2,3',5',6-Tetrachlarobiphenyl (BZ-73) EPA 1668C_2010 2,3,5-Trichlorobiphenyl (BZ-23) EPA 1668C_2010 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/19/2021 Page 12 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/1812022 C466-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Non-Potable Water 2,3',5'-T richlorobiphenyl (BZ-34) EPA 1668C_2010 2,3,6-Trichlorobiphenyl (BZ-24) EPA 1668C_2010 2,3',6-Trichlorobiphenyl (BZ-27) EPA 1668C_2010 2,3-Dichlorobiphenyl (BZ-5) EPA 1668C_2010 2,3'-Dichlorobiphenyl (BZ-6) EPA 1668C_2010 2,4' ,5-Trichlorobiphenyl (BZ-31) EPA 1668C_2010 2,4',6-Trichlorobiphenyl (BZ-32) EPA 1668C_2010 2,4-Dichlorobiphenyl (BZ-7) EPA 1668C_2010 2,4'-Dichlorobiphenyl (BZ-8) EPA 1668C_2010 2,5-Dichlorobiphenyl (BZ-9) EPA 1668C_2010 2,6-Dichlorobiphenyl (BZ-10) EPA 1668C_2010 2-Chlorobiphenyl (BZ-1) EPA 1668C_2010 3,3',4.4',5,5'-Hexachlorobiphenyl (BZ-169) EPA 1668C_2010 3,3',4,4',5-Pentachlorobiphenyl (BZ-126) EPA 1668C_2010 3,3',4,4'-Tetrachlorobiphenyl (BZ-77) EPA 1668C_2010 3,3',4,5, 5'-Pentachlorobi phenyl (BZ-127) EPA 1668C_2010 3,3',4,5-Tetrachlorobiphenyl (BZ-78) EPA 1668C__2010 3,3' ,4,5'-Telrachlorobiphenyl (BZ-79) EPA 1668C_2010 3,3',4-Trichlorobiphenyl (BZ-35) EPA 1668C_2010 3,3',5,5'-Tetrachlorobiphenyl (BZ-80) EPA 1668C_2010 3,3',5-Trichlorobiphenyl (BZ-36) EPA 1668C_2010 3,3'-Dichlorobiphenyl (BZ-11) EPA 1668C_2010 3,4,4' ,5-Tetrachlorobiphenyl (BZ-81) EPA 1668C_2010 3,4,4'-Trichlorobiphenyl (BZ-37) EPA 1668C_2010 3,4,5-Trichlorobiphenyl (BZ-38) EPA 1668C_2010 3,4',5-Trichlorobiphenyl (BZ-39) EPA 1668C__2010 3,5-Dichlorobiphenyl (BZ-14) EPA 1668C_2010 3-Chlorobiphenyl (BZ-2) EPA 1668C_2010 4.4'-Dichlorobiphenyl (BZ-15) EPA 1668C_2010 4-Chlorobiphenyl (BZ--3) EPA 1668C_2010 Coelulion - Dichlorobiphenyls (BZ-12-+13) EPA 1668C_2010 Coelution - Heptachlorobiphenyls (BZ-171 + BZ-173) EPA 1668C_2010 Coelution - Heptachlorobiphenyls (BZ-180 + BZ-193) EPA 1668C_2010 Coelution - Heptachlorobiphenyls (BZ-183 + BZ-185) EPA 1668C_2010 Coelution - Hexachlorobiphenyls (BZ-128 + BZ-166) EPA 1668C_2010 Coolulion - Hexachlorobiphenyls (BZ-129 + BZ138 + BZ-163) EPA 1668C_2010 Coelulion -Hexachlombiphenyls (BZ-134 +BZ-143) EPA 1668C_2010 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/19/2021 Page 13 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/18/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Non-Potable Water Coelution - Hexachlorobiphenyls (BZ-135 + BZ-151) EPA 1668C_2010 Coelution - Hexachlorobiphenyls (BZ-139 + BZ-140) EPA 1668C_2010 Coelution - Hexachlorobiphenyls (BZ-147 + BZ-149) EPA 166BC_2010 Coelution - Hexachlorobiphenyls (BZ-153 +BZ-168) EPA 1668C_2010 Coelution - Hexachlorobiphenyls (BZ-156 + BZ-157) EPA 1668C_2010 Coelution - Octachlorobiphenyls (BZ-197 +BZ-200) EPA 1668C_2010 Coelution - Octachlorobiphenyls (BZ-198 + BZ-199) EPA 1668C_2010 Coelulion - Pentachlorobiphenyls (BZ-107 + BZ-124) EPA 1668C_2010 Coelution - Pentachlorobiphenyls (BZ-110 + BZ-115) EPA 1668C_2010 Coelution - Pentachlorobiphenyls (BZ-85 + BZ-116 + BZ-117) EPA 1668C_2010 Coelution - Pentachlorobiphenyls (BZ-88 + BZ-91) EPA 1668C_2010 Coelution - Pentachlorobiphenyls (BZ-90 + BZ-101 + BZ-113) EPA 1668C__.2010 Coelution - Tetrachlorobiphenyls (BZ-40 + BZ-41 + BZ-71) EPA 1668C_2010 Coelution - Tetrachlorobiphenyls (BZ-44 + BZ-47 + BZ-65) EPA 1668C__.2010 Coelution - Tetrachlorobiphenyls (BZ-45 + BZ-51) EPA 1668C_2010 Coelution - Telrachlorobiphenyls (BZ-49 + BZ-69) EPA 1668C_2010 Coelution - Tetrachlorobiphenyls (BZ-50 + BZ-53) EPA 1668C_2010 Coelution - Tetrachlorobiphenyls (BZ-59 + BZ-62 + BZ-75) EPA 1668C__.2010 Coelution - Tetrachlorobiphenyls (BZ-61 + BZ-70 + BZ-74 + BZ-76) EPA 1668C_2010 Coelulion - Tetrachlorobiphenyls (BZ-70 + BZ-74 + BZ-76) EPA 1668C_2010 Coelulion - Trichlorobiphenyls (BZ-18 + BZ-30) EPA 1668C_2010 Coelution - Trichlorobiphenyls (BZ-20 + BZ-28) EPA 1668C_2010 Coelution - Trichlorobiphenyls (BZ-21 + BZ-33) EPA 1668C_2010 Coelution - Trichlorobiphenyls (BZ-26 + BZ-29) EPA 1668C_2010 Decachlorobiphenyl (BZ-209) EPA 1668C_2010 PCBs, as cong ene/S EPA 1668C_2010 1,1,1-Trichloroethane EPA 624.1 1, 1,2,2-Tetrachloroethane EPA624.1 1, 1,2-Trichloroethane EPA624.1 1, 1-Dichloroelhane EPA624.1 1, 1-Dichloroethylene EPA 6241 1,2-Dichlorobenzene EPA 624.1 1,2-Dichloroethane (Ethylene dichloride) EPA 624.1 1,2-Dichloropropane EPA 624.1 1,3-Dichlorobenzene EPA 624.1 1,4-Dichlorobenzene EPA624.1 2-Butanone (Methyl ethyl ketone, MEK) EPA 624.1 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/19/2021 Page 14of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2118/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Non-Potable Water 4-Methyl-2-pentanone (MIBK) EPA 6241 Acetone EPA 624,1 Acrolein (Propenal) EPA 624.1 Acrylonitrile EPA 6241 Benzene EPA 6241 BromodichIorometh ane EPA 624.1 Bromoform EPA 624.1 Carbon tetrachloride EPA 624.1 Chlorobenzene EPA 624.1 Chi orodibromometh an e EPA 624.1 Chloroethane (Ethyl chloride) EPA 6241 Chloroform EPA 624.1 cis-1,3-Dichloropropene EPA 624.1 Ethylbenzene EPA 6241 lsopropylbenzene EPA 624.1 m+p-xylene EPA 624.1 Methyl bromide (Bromomethane) EPA 624.1 Methyl chloride (Chloromethane) EPA 624.1 Methylene chloride (Dichloromethane) EPA 624.1 o-Xylene EPA 6241 Tetrachloroethylene (Perchloroethylene) EPA 6241 Telrahydrofuran (THF) EPA 624.1 Toluene EPA 624.1 lrans-1,2-Dichloroethylene EPA 624.1 trans-1,3-Dichloropropylene EPA 624.1 Tric hloroethe ne (Trich loroethylene) EPA 624.1 Trichlorofluoromethane (Freon 11) EPA 624.1 Vinyl chloride EPA 624.1 Xylene (total) EPA 624.1 1,2,4-Trichloroben ze ne EPA 625.1 2,2'-Oxybis(1-chloropropane) EPA 625.1 2,4,5-Trichlorophenol EPA 625.1 2,4,6-Trich larophenol EPA 625.1 2,4-Dichlorophenol EPA 625.1 2,4-Dimethylphen ol EPA 625.1 2,4-Dinitrophenol EPA 625.1 2,4-Dinitrotoluene (2,4-DNT) EPA 625.1 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/19/2021 Page 15 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scape Expires: 2/18/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Non-Potable Water 2,6-Dinilrotoluene (2,6-DNT) EPA 625.1 2-Chloronaphthalene EPA 625.1 2-Chlorophenol EPA 625.1 2-Methyl-4,6-dinitrophenol EPA 625.1 2-Nitrophenol EPA 625,1 3,3'-Dichlorobenzidine EPA 625.1 4-Bromophenyl phenyl ether (BDE-3) EPA 625.1 4-Chloro-3-methylphenol EPA 625.1 4-Chlorophenyl phenylether EPA 625.1 4-Nilrophenol EPA 625.1 Acenaphthene EPA 625.1 Acenaphthylene EPA 625.1 Anthracene EPA 625.1 Benzi dine EPA 625.1 Benzo(a)anthracene EPA 625.1 Benzo(a)pyrene EPA 625.1 Benzo(g,h,i)perylene EPA 625.1 Benzo(k)fiuoranlhene EPA 625.1 Benzo[b)fluoranthene EPA 625.1 bis (2-C hloroethoxy)methane EPA 625.1 bis(2-Chloroethyl) ether EPA 625.1 Butyl benzyl phthalate EPA 625.1 Chrysene EPA 625.1 Di(2-ethylhexyI)phthaIate EPA 625.1 Dibenz(a, h) anthracene EPA 625.1 Diethyl phthalate EPA 625.1 Dimethyl phthalate EPA 625.1 Di-n-butyl phthalate EPA 625.1 Di-n-0ctyl phthalate EPA 6251 Fluoranthene EPA 625.1 Fluorene EPA 625.1 Hexachloroben zen e EPA 625.1 Hexachlorobutadiene EPA 625.1 Hexachlorocycl ope ntadiene EPA625.1 Hexachloroethane EPA 625.1 lndeno(1,2,3-cd) pyrene EPA625.1 lsophorone EPA 625.1 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/1912021 Page 16 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/1812022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Non-Potable Water Naphthalene EPA 625.1 Nitrobenzene EPA 625.1 N-Nitrosodimethylamine EPA 625.1 N-Nitroso-di-n-propylamine EPA 625.1 N-Nitrosodiphenytamine EPA 625.1 Pentachlorophen ol EPA 625.1 Phenanthrene EPA 625.1 Phenol EPA 625.1 Pyrane EPA 625.1 Ethane EPA RSK-175 Ethene EPA RSK-175 Methane EPA RSK-175 n-Propane EPA RSK-175 Solid and Chemical Materials pH EPA 9045D_2002 Bromide EPA 9056A_(02107) 1,4 Chloride EPA 9056A_(02/07) 1,4 Fluoride EPA 9056A_(02I07) 1,4 Nitrate EPA 9056A_(02/07)

Nitrite EPA 9056A_(02l07)

Sulfate EPA 9056A_(02/07) 1,4 n-Hexane Extractable Material (O&G) EPA 9071 8_2_1999 Paint Filter Liquids EPA 9095 8-04 Aluminum EPA 60100_2018 Antimony EPA 60100_2018 Arsenic EPA 6010D_2018 Barium EPA 60100_2018 Beryllium EPA 6010_2018 Boron EPA 6010_2018 Cadmium EPA 60100_2018 Calcium EPA 6010D_2018 Chromium EPA 60100_2018 Cobalt EPA 60100_2018 Copper EPA 60100_2018 Iron EPA 60100_2018 Lead EPA 6010D_2018 Magnesium EPA 60100_2018 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/19/2021 Page 17 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2118/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Solid and Chemical Materials Manganese EPA 6010D_2018 Molybdenum EPA 6010D_2018 Natural uranium EPA 6010D_2018 Nickel EPA 6010D_2018 Phosphorus, Total EPA 60100_2018 Potassium EPA 60100_2018 Selenium EPA 60100_2018 Silicon EPA 6010D_2018 Silver EPA 60100_2018 Sodium EPA 6010D_2018 Strontium EPA 6010D_2018 Sulfur EPA 6010D_2018 Thallium EPA 60100_2018 Tin EPA 60100_2018 Titanium EPA 60100_2018 Vanadium EPA 60100_2018 Zinc EPA 60100_2018 Aluminum EPA 6020B_(7/14)

Antimony EPA 60206_(7/14)

Arsenic EPA 60208_(7/14)

Barium EPA 60208_(7l14)

Beryllium EPA 60208_(7/14)

Bismuth EPA 6020B_(?/14) 1,4 Boron EPA 60208_(7/14) 1 Cadmium EPA 60209_(7114)

Calcium EPA 60208_(7114)

Chromium EPA 6020B_(?/14)

Cobalt EPA 60208_(7114)

Copper EPA 60208_(7/14)

Iron EPA 60208_(7l14)

Lead EPA 60208_(7/14)

Lithium EPA 60208_(7/14)

Magnesium EPA 60208_(7/14)

Manganese EPA 60208_(7/14)

Mercury EPA 60208_(7/14)

Molybdenum EPA 6020B_(?/14)

Nickel EPA 60209_(7/14)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2119/2021 Page 18 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/1812022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Solid and Chemical Materials Palladium EPA 60208_(7114} 1,4 Platinum EPA 60208_(7/14)

Potassium EPA 60208_(7114)

Selenium EPA 60208_(7114)

Silicon EPA 60208_(7/14)

Silver EPA 60208_(7114)

Sodium EPA 60208_(7114)

Strontium EPA 60208_(7/14)

Sulfur EPA 60206_(7/14)

Thallium EPA 60208_(7/14)

Tin EPA 60208_(7/14)

Titanium EPA 60206_(7/14)

Uranium EPA 60208_(7/14)

Vanadium EPA 60206_(7/14)

Zinc EPA 60208_(7/14}

Mercury EPA 7470A_1_1994 1 Mercury EPA 74718_(1198) i 1,2-Dibromo-3-<:hloropropane (DBCP) EPA 8011-92 1,4 1,2-Dibromoethane (EDB, Ethylene dibromide) EPA 8011-92 1,4 Gasoline range organics (GRO) EPA 8015C_(11/00)

Diesel range organics (ORO) EPA BO 15D_4_(6103) 4,4'-DDD EPA 80818_(2107) 4,4'-DDE EPA 80818_(2107) 4,4'-DDT EPA 80818_(2107)

Aldrin EPA 80818_(2107) alpha-BHC (alpha-Hexachlorocyclohexane) EPA 80818_(2/07) alpha-Chlo rd an e EPA 80818_(2107) beta-BH C (beta-Hex achlorocyclohe,i:an e) EPA 80818_(2/07)

Chlordane (tech.) EPA 80818_(2107) delta-BHC EPA 80818_(2/07)

Dieldrin EPA 80818_(2107)

Endosulfan I EPA 80818_(2107)

Endosulfan II EPA 80818_(2107)

Endosulfan sulfate EPA 80818_(2107)

Endrin EPA 80818_(2107)

Endrin aldehyde EPA 80818_(2/07)

Endrin ketone EPA 80818_(2/07)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/1912021 Page 19 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/1812022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Solid and Chemical Materials gamma-BHC (Lindane, gamma-Hexachlorocyclohexane) EPA 80818_(2/07) gamma-Chlordane EPA 80818_(2/07)

Heptachlor EPA 80818_(2/07)

Heptachlor epoxide EPA 80818_(2/07)

Methoxychlor EPA 8081 B_(2/07)

Toxaphene (Chlorinated camphene) EPA 80818_{2/07)

Aroclor-1016 (PCB-1016) EPA 8082A_(2/07)

Aroclor-1221 (PCB-1221) EPA 8082A_(2I07)

Aroclor-1232 (PCB-1232) EPA 8082A_(2/07)

Aroclor-1242 (PCB-1242) EPA 8082A_(2l07)

Aroclor-1248 (PCB-1248) EPA 8082A_(2/07)

Aroclor-1254 (PCB-1254) EPA 8082A_(2/07)

Aroclor-1260 (PCB-1260) EPA 8082A_(2/07)

Aroclor-1262 (PCB-1262) EPA 8082A_(2/07)

Aroclor-1268 (PCB-1268) EPA 8082A_(2/07)

Diesel range organics (DRO) WDOE NWTPH-Dx_(1997) 2,5 Motor Oil WDOE NWTPH-Dx_(1997) 2,5 Gasoline range organics (GRO) WDOE NWTPH-Gx_(1997) 2,5 2,2',3,3',4,4',5,5',6-Nonachlorobiphenyl (BZ-206) EPA 1668C_2010 1 2,2',3,3',4,4' ,5,5'-0ctachlorobiphenyl (BZ-194) EPA 1668C_2010 2,2',3,3',4,4',5,6,6'-Nonachlorobiphenyl (BZ-207) EPA 1668C_2010 2,2',3,3',4,4',5,6-0ctachlorobiphenyl (BZ-195) EPA 1668C_2010 2,2',3,3'.4.4',5,6'-0clachlorobiphenyl (BZ-196) EPA 1668C_2010 2,2',3,3',4,4',5-Heptachlorobiphenyl (BZ-170) EPA 1668C_2010 2,2',3,3',4,5,5',6,6'-Nonachlorobiphenyl (BZ-208) EPA 1668C_2010 2,2',3,3',4,5,5'-Heptachlorobiphenyl (BZ-172) EPA 1668C_2010 2,2',3,3',4,5' ,6,6'-0ctachlorobiphenyl (BZ-201) EPA 1668C_2010 2,2' ,3,3',4,5,6'-Heptachlorobiphenyl (BZ-174) EPA 1668C_2010 2,2',3,3',4,5',6-Heptachlorobiphenyl (BZ-175) EPA 1668C_2010 2,2',3,3',4,5',6'-Heptachlorobiphenyl (BZ-177) EPA 1668C_2010 2,2',3,3',4,5'-Hexachlorobiphenyl (BZ-130) EPA 1668C_2010 2,2',3,3',4,6,6'-Heptachlorobiphenyl (BZ-176) EPA 1668C_2010 2,2',3,3',4,6-Hexachlorobiphenyl (BZ-131) EPA 1668C_2010 2,2' ,3,3',4,6'-Hexachlorobiphenyl (BZ-132) EPA 1668C_2010 2,2',3,3',4-Pentachlorobiphenyl (BZ-82) EPA 1668C_2010 2,2',3,3',5,5',6,6'-0ctachlorobiphenyl (BZ-202) EPA 1668C_2010 2,2',3,3',5,5',6-Heptachlorobiphenyl (BZ-178) EPA 1668C_2010 Washington State Department of Ecology Laboratory Accreditation Unit Effective Dale: 2119/2021 Page 20 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2118/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Solid and Chemical Materials 2,2' ,3,3',5,5'-Hexachlorobiphenyl (BZ-133) EPA 1668C_2010 2,2',3,3',5,6,6'-Heptachlorobiphenyl (BZ-179) EPA 1668C_2010 2,2',3,3',5-Pentachlorobiphenyl (BU3) EPA 1668C_2010 2,2',3,3',6,6'-Hexachlorobiphenyl (BZ-136) EPA 1668C_2010 2,2',3,3', 6-Pentachlorobiphenyl (BZ-84} EPA 1668C_2010 2,2',3,4,4',5,5',6-0ctachlorobiphenyl (BZ-203) EPA 1668C_2010 2,2',3,4,4',5,6,6'-0ctachlorobiphenyl (BZ-204) EPA 1668C_2010 2,2' ,3,4,4',5,6-Heptachlorobiphenyl (BZ-181) EPA 1668C_2010 2,2' ,3,4,4',5,6'-Heptachlorobiphenyl (BZ-182) EPA 1668C_2010 2,2',3,4,4',5-Hexachlorobiphenyl {BZ-137) EPA 1668C_2010 2,2',3,4,4',6,6'-Heptachlorobiphenyl (BZ-184) EPA 1668C_2010 2,2',3,4,5,5'-Hexachlorobiphenyl (BZ-141) EPA 1668C_2010 2,2',3,4',5,5'-Hexachlorobiphenyl (BZ-146) EPA 1668C_2010 2,2',3,4,5,6,6'-Heptachlorobiphenyl (BZ-186) EPA 1668C_2010 2,2',3,4',5,6,6'-Heptachlorobiphenyl (BZ-1 BB) EPA 1668C_2010 2,2' ,3,4,5,6-Hexachlorobiphenyl (BZ-142) EPA 1668C_2010 2,2',3,4,5',6-Hexachlorobiphenyl (BZ-144) EPA 1668C_2010 2,2',3,4',5,6'-Hexachlorobiphenyl (BZ-148) EPA 1668C_2010 2,2',3,4,6,6'-Hexachlorobiphenyl (BZ-145) EPA 1668C_2010 2,2',3,4',6,6'-Hexachlorobiphenyl (BZ-150) EPA 1668C_2010 2,2',3, 4, 6'-Pentachlorobiphenyl (BZ-89) EPA 1668C_2010 2, 2', 3,4'-T elrachlorobiphenyl (BZ-42) EPA 1668C_2010 2,2',3,5,5'-Pentachlorobiphenyl (BZ-92) EPA 1668C_2010 2,2',3,5,6,6'-Hexachlorobiphenyl (BZ-152) EPA 1668C_2010 2,2',3,5,6'-Penlachlorobiphenyl (BZ-94) EPA 1668C_2010 2,2',3,5',6-Pentachlorobiphenyl (BZ-95) EPA 1668C_2010 2,2',3,6,6'-Penlachlorobiphenyl (BZ-96) EPA 1668C_2010 2,2',3,6'-Tetrachlorobiphenyl (BZ-46) EPA 1668C_2010 2,2',3-Trichlorobiphenyl {BZ-16) EPA 1668C_2010 2,2',4,4',5,6'-Hexachlorobiphenyl (BZ-154) EPA 1668C_2010 2,2',4,4',5-Pentachlorobiphenyl (BZ-99) EPA 1668C_2010 2,2',4,4' ,6,6'-Hexachlorobiphenyl (BZ-155) EPA 1668C_2010 2,2',4,5',6-Pentachlorobiphenyl (BZ-103) EPA 1668C_2010 2,2',4,5-Tetrachlorobiphenyl (BZ-48) EPA 1668C_2010 2,2'.4.6,6'-Pentachlorobiphenyl {BZ-104) EPA 1668C_2010 2,2',4-Trichlorobiphenyl {BZ-17) EPA 1668C_2010 2, 2', 5,5'-T etrachIorob iphenyl (BZ-52) EPA 1668C_2010 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date 2119/2021 Page 21 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/18/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/An alyte Method Notes Solid and Chemical Materials 2,2',6,6'-Tetrachlorobiphenyl (BZ-54) EPA 1668C_2010 2,2',6-Trichlorobiphenyl (BZ-19) EPA 1668C_2010 2,2'-Dichlorobiphenyl (BZ-4) EPA 1668C_2010 2,3,3',4,4',5,5',6-Octachlorobiphenyl (BZ-205) EPA 1668C_2010 2,3,3' ,4,4',5,5'-Heptachlorobiphenyl (BZ-189) EPA 1668C_2010 2,3,3',4,4',5, 6-Heptachlorobiphenyl (BZ- t 90) EPA 1668C_2010 2,3,3',4,4',5',6-Heptachlorobiphenyl (BZ-191) EPA 1668C_2010 2,3,3',4,4',6-Hexachlorobiphenyl (BZ-158) EPA 1668C_2010 2,3,3',4,4'-Pentachlorobiphenyl (BZ-105) EPA 166BC_2010 2,3,3',4,5,5',6-Heptachlorobiphenyl (BZ-192) EPA 1668C_2010 2,3,3' ,4,5,5'-Hexachlorobiphenyl (BZ-159) EPA 1668C_2010 2,3,3' ,4',5,5'-Hexachlorobiphenyl (BZ-162) EPA 1668C_2010 2,3,3',4,5,6-Hexachlorobiphenyl (BZ-160) EPA 1668C_2010 2.3.3',4',5',6-Hexachlorobiphenyl (BZ-164) EPA 1668C_2010 2,3,3',4,5',6-Hexachlorobiphenyl (BZ-161) EPA 1668C_2010 2,3,3',4,5-Pentachlorobiphenyl (BZ-106) EPA 1668C_2010 2,3,3' ,4',5'-Pentachlorobiphenyl (BZ-122) EPA 1668C_2010 2,3,3' ,4,6-Pentachlorobiphenyl (BZ-109) EPA 1668C_2010 2,3 ,3',4-Tetrachlorobiphenyl (BZ-55) EPA 1668C_2010 2,3,3',4'-Tetrachlorobiphenyl (BZ-56) EPA 1668C_2010 2,3,3',5,5',6-Hexachlorobiphenyl (BZ-165) EPA 1668C_2010 2,3,3',5,5'-Pentachlorobiphenyl (BZ-111) EPA 1668C_2010 2,3,3',5,6-Pentachlorobiphenyl (BZ-112) EPA 1668C_2010 2, 3, 3' ,5-Tetrachlorobiphenyl (BZ-57) EPA 1668C_2010 2, 3,3',5'-Tetrachlorobiphenyl (BZ-58) EPA 1668C_2010 2,3',4,4',5, 5'-Hexachlorobiphenyl (BZ-167) EPA 1668C_2010 2,3,4,4',5-Pentachlorobiphenyl (BZ-114) EPA 1668C_.2010 2,3',4,4',5-Penlachlorobiphenyl (BZ-118) EPA 1668C_.2010 2,3',4,4',5'-Pentachlorobiphenyl (BZ-123) EPA 1668C_2010 2, 3, 4, 4'-Tetrachlorobiphenyl (BZ-60) EPA 1668C_.2010 2,3' ,4,4'-Tetrachlorobiphenyl (BZ-66) EPA 1668C_2010 2,3' ,4,5,5'-Pentachlorobiphenyl (BZ-120) EPA 1668C_2010 2,3',4, 5', 6-Pentachlorobiphenyl {BZ-121 } EPA 1668C_2010 2,3,4',5-Tetrachlorobiphenyl (BZ-63) EPA 1668C_2010 2,3',4,5'-Telrachlorobiphenyl (BZ-68) EPA 1668C_2010 2,3',4, 5-T etrachlarobiphenyl (BZ-67) EPA 1668C_2010 2, 3, 4', 6-Tetrachlorobiphenyl (BZ-64) EPA 1668C_2010 Washington State Department of Ecology Laboratory Accreclitation Unit Effective Date: 2/1912021 Page 22 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/1812022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrlx/Analyte Method Notes Solid and Chemical Materials 2,3,4'-Trichlorobiphenyl {BZ-22) EPA 1668C_2010 2,3',4-Trichlorobiphenyl (BZ-25) EPA 1668C_2010 2,3' ,5,5'-Tetrachlorobiphenyl (BZ-72) EPA 1668C_2010 2,3',5',6-Tetrachlorobiphenyl {BZ-73) EPA 1668C_2010 2,3,5-Trichlorobiphenyl (BZ-23) EPA 1668C_2010 2,3',5'-Trichlorobiphenyl (BZ-34) EPA 1668C_2010 2,3,6-Trichlorobiphenyl (BZ-24) EPA 1668C_2010 2,3',6-Trichlorobiphenyl (BZ-27) EPA 1668C_2010 2,3-Dichlorobiphenyl (BZ-5) EPA 1668C_2010 2,3'-Dichlorobiphenyl (BZ-6) EPA 1668C_2010 2.4',5-Trichlorobiphenyl (BZ-31) EPA 1668C_2010 2,4',6-Trichlorobiphenyl (BZ-32) EPA 1668C_2010 2,4-Dichlorobiphenyl (BZ-7) EPA 1668C_2010 2,4'-Dichlorobiphenyl (BZ-8) EPA 1668C_2010 2,5-Dichlorobiphenyl (BZ-9) EPA 1668C_2010 2,6-Dichlorobiphenyl {BZ-10) EPA 1668C_2010 2-Chlorcbiphenyl (BZ-1) EPA 1668C_2010 3,3',4,4',5,5'-Hexachlorobiphenyl (BZ-169) EPA 1668C_2010 3,3'.4.4',5-Pentachlorobiphenyl (BZ-126) EPA 1668C_2010 3,3'.4,4'-Tetrachlorobiphenyl (BZ-77) EPA 1668C_2010 3,3',4,5,5'-Pentachlorcbiphenyl (BZ-127) EPA 1668C_2010 3,3' ,4,5-Tetrachlorobiphenyl (BZ-78) EPA 166BC_2010 3,3',4,5'-Tetrachlorobiphenyl (BZ-79) EPA 1668C_2010 3,3',4-Trichlorobiphenyl (BZ-35) EPA 1668C_2010 3,3',5, 5'-Tetra ch lorobi phenyl (BZ-80) EPA 1668C_2010 3,3',5-Trichlorobiphenyl (BZ-36) EPA 1668C_2010 3,3'-Dichlorobiphenyl (BZ-11) EPA 1668C_2010 3,4,4',5-Tetrachlorobiphenyl (BZ-81) EPA 1668C_2010 3,4,4'-Trichlorobiphenyl (BZ-37) EPA 1668C_2010 3,4,5-Trichlorobiphenyl (BZ-38) EPA 1668C_2010 3,4',5-Trichlorobiphenyl (BZ-39) EPA 1668C_2010 3,5-Dichlorobiphenyl (BZ-14) EPA 1668C_2010 3-Chlorcbiphenyl (BZ-2) EPA 1668C_2010 4,4'-Dichlorcbiphenyl (BZ-15) EPA 1668C_2010 4-Chlorcbiphenyl (BZ-3) EPA 1668C_2010 Coelution - Dichlorobiphenyls (BZ-12-+13) EPA 1668C_2010 Coelution - Heptachlorobiphenyls (BZ-171 + BZ-173) EPA 1668C_2010 Washington State Depaitment of Ecology Laboratory Accreditation Unit Effective Dale: 2/1912021 Page 23 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC- Minneapolis MN Scope Expires: 2/18/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Solid and Chemical Materials Coelution - Heptachlorobiphenyls (BZ-180 + BZ-193) EPA 1668C_2010 Coelution - Heptachlorobiphenyls (BZ-183 + BZ-185) EPA 1668C_2010 Coelution - Hexachlorobiphenyls (BZ-128 + BZ-166) EPA 1668C_201D Coelution - Hexachlorobiphenyls (BZ-129 + B2138 +BZ-163) EPA 1668C__2010 Coelution -Hexachlorobiphenyls (BZ-134 +BZ-143) EPA 1668C_201D Coelution - Hexachlorobiphenyls (BZ-135 + BZ-151) EPA 1668C_2010 Coelution - Hexachlorobiphenyls (BZ-139 +BZ-140) EPA 1668C_2010 Coelution - Hexachlorobiphenyls (BZ-147 +BZ-149) EPA 1668C_2010 Coelution - Hexachlorobiphenyls (BZ-153 + BZ-168) EPA 1668C_2010 Coelution - Hexachlorobiphenyls (BZ-156 + BZ-157) EPA 166BC_2010 Coelution - Octachlorobiphenyls (BZ-197 + BZ-200) EPA 1668C_2010 Coelution - Octachlorobiphenyls (BZ-198 +BZ-199) EPA 1668C_2010 Coelution - Pentachlorobiphenyls (BZ-107 + BZ-124) EPA 1668C_2010 Coelution - Pentachlorobiphenyls (BZ-110 + BZ-115) EPA 1668C_2010 Coelution - Pentachlorobiphenyls (BZ-85 + BZ-116 + BZ-117) EPA 1668C_2010 Coelution - Penlachlorobiphenyls (BZ~8.,. BZ-91) EPA 1668C_2010 Coelution - Pentachlorobiphenyls (BZ-90 + BZ-101 + BZ-113) EPA 1668C_2010 Coelulion - Telrachlorobiphenyls (BZ-40 + BZ-41 + BZ-71) EPA 1668C_2010 Coelulion - Tetrachlorobiphenyls (BZ-44 + BZ-47 + BZ-65) EPA 1668C_2010 Coelution - Tetrachlorobiphenyls (BZ-45 + BZ-51) EPA 1668C_2010 Coelution - Tetrachlorobiphenyls (BZ-49 + BZ-69) EPA 1668C_2010 Coelution - Tetrachlorobiphenyls (BZ-50 + BZ-53) EPA 1668C_2010 Coelulion - Telrachlorobiphenyls (BZ-59 + BZ-62 + BZ-75) EPA 1668C_2010 Coelulion - Telrachlarobiphenyls (BZ-61 + BZ-70 + BZ-74 + BZ-76) EPA 1668C_2010 Coelulian -Trichlorobiphenyls (BZ-18 +BZ-30) EPA 1668C_2010 Coelulian - Trichlorobiphenyls (BZ-20 + BZ-28) EPA 1668C_2010 Coelutian - Trichlorobiphenyls (BZ-21 + BZ-33) EPA 1668C_2010 Coelulion - Trichlorobiphenyls {BZ-26 + BZ-29) EPA 1668C_2010 Coelulion-Hexachlorobiphen yls (BZ-129+BZ-138+BZ-160+BZ-163) EPA 1668C_2010 Coelulion-Pentachlarobiphenyls (BZ-93 + BZ-98 + BZ-100 + BZ-102) EPA 1668C_2010 Decachlorobiphenyl (BZ-209) EPA 1668C_2010 PCBs, as congeners EPA 1668C_2010 1, 1, 1,2-Tetrachloroethane EPA 8260D_4_(6118) 1, 1, 1-Trichloroethane EPA 8260D_4_(6/18) 1, 1,2,2-Tetrachlaroelhane EPA 8260D_4_(6/18) 1, 1,2-Trichloro-1,2,2-trifluaroethane (Freon 113) EPA 8260D_4_(6118) 1, 1,2-Trichloroelhane EPA 82600_4_(6118)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date 2119/2021 Page 24 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 21181202 2 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Solid and Chemical Materials 1,1-0ichlo roethane EPA 8260D_4_(6118) 1, 1-0ichloroethylene EPA 82600_4_(6118) 1,1-Dichloroprope ne EPA 8260D_4_(6118) 1,2,3-Trichlorobenzene EPA 82600_4_{6/18) 1,2,3-Trichloropropane EPA 8260D_4_(6/18) 1,2,3-Trimethylbenzene EPA 8260D_4_(6/18) 1,2,4-Trichlorobenzene EPA 82600_4_(6/18) 1,2,4-Trimeth yIbenzemi EPA 8260D_4_(6/18) 1,2-Dibromo-3-<:hloropropane (DBCP) EPA 82600_4_(6/18) 1,2-Dibromoethane (EDB, Ethylene dibromide) EPA 82600_4_(6118) 1,2-Dichlorobenzene EPA 82600_4_{6/18) 1,2-Dichloroethane (Ethylene dichloride) EPA 82600_4_{6118) 1,2-Dichloropropane EPA 82600_4_(6118) 1,3,5-Trimethylbenzene EPA 8260D_4_(6/18) 1,3-Butadiene EPA 82600_4_(6/18) 1,3-Dichlorobenzene EPA 82600_4_(6/18) 1,3-Dichloropropane EPA B2600_4_(6/18) 1,4-Dichlorobenzene EPA 8260D_4_(6118) 1,4-Dioxane (1,4- Diethyleneoxide) EPA 8260D_4_{6/18) 1-Methylnaphlhalene EPA 82600_4_{6/18} 1,4 1-Propene EPA 8260D_4_(6/18) 2, 2,4-Tri melh yl pe nta ne EPA 82600_4_(8118) 1,4 2, 2-DichIoropropane EPA 82600_4_(6118) 1 2-Butanone (Methyl ethyl ketone, MEK) EPA B2600_4_(611 B) 2-Chloroethyl vinyl ether EPA 82600_4_(6/18) 2-Chlorotoluene EPA 8260D_4_(6/18) 2-Hexanone EPA 82600_4_(6/18) 2-Methylnaphthalene EPA 82600_4_(6/18) 2-Nitropropan e EPA 82600_4_(6118) 1,4 4-Chlorotol uene EPA 82600_4_(6118) 1 4-Ethyltoluene EPA B2600_4_(6118) 4-lsopropyltoluene (p-Cymene) EPA 82600_4_(6/18) 4-Methyl-2-pentanone (M IBK) EPA 82600_4_(6/18)

Acetone EPA 82600_4_(6118)

Acetonitrile EPA 82600_4_(6/18) 1,4 Acrolein (Propenal) EPA 82600_4_(6/18)

Acrylonitrile EPA 82600_4_(6/18)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/19/2021 Page 25 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/1812022 C486-21

Pace Analy1ical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Solid and Chemical Materials Allyl chloride (3-Chloropropene) EPA 8260D_4_(6118)

Benzene EPA 8260D_4_(6/18)

Bnomobenzene EPA 8260D_4_(6/18)

BromochIoromethane EPA 8260D_4_(6118)

Bromodichloromethane EPA 82600_4_(6/18)

Bromoform EPA 82600_4_(6118)

Carbon disulfide EPA 8260D_4_(6/18)

Carbon tetrachloride EPA 8260D_4_(6118)

Chlorobenzen e EPA 8260D_4_(6118)

Chlorodibromomethane EPA 8260D _4_(6/18)

Chloroelhane (Ethyl chloride) EPA 8260D _4_(6/18)

Chloroform EPA 8260D_4_{6118)

Chloroprene (2-Chloro-1,3-butadiene) EPA 82600_4_(6118) cis & trans-1,2-0ichloroethene EPA 8260D_4_(6/18) cis-1,2-Dichloroethylene EPA 8260D_4_(6/18) cis-1,3-Dichlonopropene EPA 8260D_4_(6/18) cis-1,4-Dichloro-2-butene EPA 8260D_4_(6/18) 1,4 Cyclohexane EPA 8260D _4_(6/18)

Dibromomethane EPA 8260D_4_{6118)

Dichlonodifluoromethane (Freon-12) EPA 82600_4_(6118)

Dichlorofiuonomethane (Freon 21) EPA 8260D _4_(6118)

Dicyclopentadiene EPA 8260D_4_(6118)

Diethyl ether EPA 8260D _4_(6/18)

Di-isopropylelher (DIPE) EPA 8260D_4_(6/18)

Ethanol EPA 8260D _4_(6/18)

Ethyl acetate EPA 8260D_4_(6118) 1 Ethyl methacrylate EPA 8260D_4_(6118) 1,4 Elhylbenzene EPA 82600_4_(6118)

Ethyl-t-butylether (ETBE) EPA 8260D_4_(6118)

Hexachlorobutacliene EPA 82600_4_(6118) lodomelhane (Methyl iodide) EPA 8260D_4_(6/18) lsobutyl alcohol (2-Melhyl-1-propanol) EPA 8260D_4_(6/18) lsopropyl alcohol (2-Propanol) EPA 8260D _4_(6/18) 1,4 lsopropylbenzene EPA 8260D_4_{6118) m+p-xylene EPA 82600_4_(6118)

Methacrylonitrile EPA 8260D_4_(6/18) 1,4 MethyI acetate EPA 82600_4_(6/18) 1 Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/19/2021 Page 26 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2/1812022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Solid and Chemical Materials Methyl bromide (Bromomethane) EPA 8260D_4_(6/18)

Methyl chloride (Chloromethane) EPA 8260D_4_(6118)

Methyl methacrylate EPA 8260D_4_(6118) 1,4 Methyl tert-butyl ether (MTBE) EPA 8260D_4_(6118) 1 Methylcyclohexane EPA 82600_4_{6118) 1.4 Methylene chloride (Dichloromethane) EPA 82600 _4_(6/18)

Naphthalene EPA 82600_4_(6/18) n-Butyl alcohol (1-Butanol, n-Butanol) EPA 8260D_4_(6/18) 1,4 n-Butylbenzene EPA 8260D_4_(6/18) n-Hexane EPA 8260D_4_(6118) n-Propylamine EPA 8260D_4_(6/18) n-Propy Ibenzene EPA 8260D_4_(6118) o-Xylene EPA 82600_4_(6/18)

Propionitrile (Ethyl cyanide) EPA 8260D_4_(6118) 1,4 sec-8utylbenzene EPA 82600 _4_(6118)

Styrene EPA 82600 _4_(6/18) tert-amylmethylether (TAME) EPA 82600_4_(6118) tert-Butyl alcohol EPA 82600_4_(6/18) tert-Butylbenzene EPA 8260D_4_(6/18)

Tetrachloroethylene (Perthloroelhylene) EPA 82600_4_(6/18)

Tetrahydrofuran (THF) EPA 82600_4_(6/18)

Toluene EPA 82600_4_(6/18) trans-1,2-Dichloroethylene EPA 82600_4_(6/18) trans-1,3-Dichloropropylene EPA 82600_4_(6118) trans-1,4-Dichloro-2-butene EPA 82600 _4_(6/18)

TrichIoroethe ne (T rich Ioroethylene) EPA 82600_4_(6/18)

Trichlorofluoromethane (Freon 11) EPA 82600_4_(6118)

Vinyl acetate EPA 82600_4_(6/18)

Vinyl chloride EPA 82600_4_(6/18)

Xylene (total) EPA 82600_4_(6/18) 1,2,4-Trichlorobenzene EPA 8270E_6_(6/18) 1,2-Dichlorobenzene EPA 8270E_6_(6/18) 1,2-Diphenylhydrazine EPA B270E_6_(6/18) 1,3-D ichloroben zene EPA 8270E_6_(6/18) 1,3-Dinitrobenzene (1,3-DNB) EPA 8270E_6_(6/18}

1.4-Dichlorobenzene EPA 8270E_6_(6/18) 1A-Diox.ane (1,4- Diethyleneoxide) EPA 8270E_6_(6/18) 1A Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/1912021 Page 27 or 31 Scope of Accreditation Report for Pace Analytical Services. LLC- Minneapolis MN Scope Expires: 2/18/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Solid and Chemical Materials 1-Methylnaphthalene EPA 8270E_6_(6/18}

2, 2' -Oxybis (1-chIoropropane) EPA 8270E_6_(6/18) 2,4,5-Trichlorophenol EPA 8270E_6_(6/18) 2,4,6-Trichlorophenol EPA 8270E_6_(6/18) 2,4-Dichlorophenol EPA 8270E_6_(6/18) 2,4-Dimethylphenol EPA 8270E_6_(6/18}

2,4-DinitrophenoI EPA 8270E_6_(6/18) 2,4-Din itrotoluene (2,4-DNT} EPA 8270E_6_(6/18) 2,6-0initrotoluene (2,6-DNT) EPA 8270E_6_(6/18) 2-Chloronaphthalene EPA 8270E_6_(6/18) 2-Chlorophenol EPA 8270E_6_(6/18) 2-Methylnaphthalene EPA 8270E_6_(6/18) 2-Methylphenol (o-Cresol) EPA 8270E_6_(6/18) 2-Nitroaniline EPA 8270E_6_(6/18) 2-Nitrophen ol EPA 8270E_6_(6/18) 3,3'-Dichlorobenzidine EPA 8270E_6_(6/18) 3-Methylcholanthre ne EPA 8270E_6_(6118) 3-Methylphenol (m-Cresol) EPA 8270E_6_{6/18) 3-Nitroaniline EPA 8270E_6_(6/18) 4,6-Dinitro-2-methylphenol EPA 8270E_6_(6/18) 4-Bromophenyl phenyl ether (BOE-3) EPA 8270E_6_(6/18) 4-Chloro-3-melhylphenoI EPA 8270E_6_(6/18) 4-Chloroaniline EPA 8270E_6_(6/18) 4-Chlorophenyl phenylether EPA 8270E_6_(6118) 4-Methylphenol (p-Cresol) EPA 8270E_6_(6/18) 4-Nitroaniline EPA 8270E_6_(6/18) 4-Nitrophenol EPA 8270E_6_(6/18}

5-Methylchrysene EPA 8270E_6_(6/18) 5-Nilroacenaphlh ene EPA 8270E_6_(6/18) 6-Nitrochrysene EPA 8270E_6_(6/18) 7,12-Dimethylbenz{a) anthracene EPA 6270E_6_(611 B) 7h-Dibenzo(c, g} carbazole EPA 8270E_6_(6118)

Acenaphthene EPA 8270E_6_(6118)

Acenaphthylene EPA 8270E_6_(6/18)

Anthracene EPA 8270E_6_(6/18}

Benzi dine EPA 8270E_6_(6/1 B) 8 en zo (a)a nthracene EPA 8270E_6_(6/18)

Washington State Department of Ecology Laboratory Accreditation Unit Effective Date: 2/19/2021 Page 28 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Seope Expires: 2118/2 022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Solid and Chemical Materials Benzo(a)pyrene EPA 8270E_6_(6/18)

Benzo(e)pyrene EPA 8270E_6_(6/18)

Benzo(g, h, i)perylene EPA 8270E_6_(6/1 B)

BenzoU)fluoranlhene EPA 8270E_6_(6/18)

Benzo(k)fluoranlhene EPA 8270E_6_(6/18)

Benzo[b]fluoranthe ne EPA 8270E_6_(6/18)

Benzoic acid EPA 8270E_6_(6l18)

Benzyl alcohol EPA 8270E_6_(6/18) bis(2-Chloroethoxy)methane EPA 8270E_6_(6/18}

bis(2-Chloroethyl) ether EPA 8270E_6_(6l18) bis(2-Chloroisopropyl) ether EPA 8270E_6_(6/18)

Butyl benzyl phthalate EPA 8270E_6_{6/18)

Carbazole EPA 8270E_6_{6/18)

Chrysene EPA 8270E_6_(6/18)

Di(2-ethylhexyl)phth alate EPA 8270E_6_(6/18)

Dibenz(a,h) acridine EPA 8270E_6_(6/18}

Dibenz(a,h) anthracene EPA 8270E_6_(6/18)

Dibenz(a,j) acridine EPA 8270E_6_(6/18)

Dibenzo(a,e) pyrene EPA 8270E_6_(6118)

Dibenzo(a,h) pyrene EPA 8270E_6_(6/18)

Dibenzo(a,i) pyrene EPA 8270E_6_(6/1 B)

Dibenzo( a,I)pyre ne EPA 8270E_6_(6/1 B)

Dibenzofuran EPA 8270E_6_(6/18)

Diethyl phth al ate EPA 8270E_6_(6/18)

Dimethyl phlhalate EPA 8270E_6_(6/18)

Di-n-butyl phthalate EPA 8270E_6_(6/18)

Di-n-octyl phthalate EPA 8270E_6_(6/18)

Fluoranthene EPA 8270E_6_(6/18)

Fluorene EPA 8270E_6_(6/18)

Hexachlorobenzene EPA 8270E_6_(6/18)

Hexachlorobutadien e EPA 8270E_6_(6/18)

Hexachlorocycl open tad iene EPA 8270E_6_(6118)

Hexachloroethane EPA 8270E_6_(6/18) lndeno(1,2,3~d) pyrene EPA 8270E_6_(6118) lsophorone EPA 8270E_6_(6/18) m+p Cresol EPA 8270E_6_{6/18)

Naphthalene EPA 8270E_6_(6/18)

Washington State Department of Ecology- Laboratory Accre'11tatlon Unit Effective Date: 2/19/2021 Page 29 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC- Minneapolis MN Scope Expires: 2/1 B/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Solid and Chemical Materials Nitrobenzene EPA 8270E_6_(6/18) n-Nitrosodimethylamine EPA 8270E_6_(6/18)

N-Nitroso-di-n-propylamine EPA 8270E_6_(6/18) n-Nitrosodiphenylamine EPA 8270E_6_(6/18)

Pentachloroph en ol EPA 8270E_6_(6/t 8)

Perylene EPA 8270E_6_(6/18)

Phenanthrene EPA 8270E_6_(6/18)

Phenol EPA 8270E_6_(6/18)

Pyrene EPA 8270E_6_(6/18)

Pyridine EPA 8270E_6_(6/18)

Quinoline EPA 8270E_6_(6/18) 1,2,3,4,6,7,8,9-Octachlorodibenzofuran (OCDF) EPA 8280B_2_(2/07) 1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin (OCDD) EPA 82808_2_(2/07) 1,2,J,4.6,7,8-Hpcdd EPA 82808_2_(2/07) 1,2,3,4, 6, 7,8-Hpcdf EPA 82808_2_(2/07) 1,2,3,4,7,8,9-Hpcdf EPA 82806_2_(2/07) 1,2,3,4,7,8-Hxcdd EPA 82808_2_(2/07) 1,2,3,4,7,8-Hxcdf EPA 8280B_2_(2/07) 1,2,3, 6, 7,8-Hxcdd EPA 8280B_2_(2/07) 1,2,3,6,7,8-Hxcdf EPA 8280B_2_(2107) 1,2,3,7, 8,9-Hxcdd EPA 82808_2_(2107) 1,2,3,7,8,9-Hxcdf EPA 82806_2_(2/07) 1,2,3,7,8-Pecdd EPA 82808_2_(2/07) 1,2,3,7,8-Pecdf EPA 82808_2_(2l07) 2,3,4, 6, 7,8-Hxcdf EPA 82808_2_(2107) 2,3,4,7,8-Pecdf EPA 82808_2_(2l07) 2,3,7,8-TCDD EPA 82808_2_(2/07) 2,3,7,8-TCDF EPA 82808_2_(2/07)

Hpcdd, total EPA 82808_2_(2/07)

Hpcdf, total EPA 82808_2_(2/07)

Hxcdd, total EPA 82808_2_(2/07)

Hxcdf, total EPA 82808_2_(2/07)

Pecdd, total EPA 82808_2_(2/07)

Pecdf, total EPA 82808_2_(2/07)

TCDD, total EPA 82808_2_(2/07)

TCDF, total EPA 62808_2_(2/07) 1,2,3.4,6,7,8,9-Octachlorodibenzofuran (OCDF) EPA 8290A_1_(2/07}

Washington State Department of Ecology Laboratory Accreditation Unit Effective Dale: 2/19/2021 Page 30 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC - Minneapolis MN Scope Expires: 2118/2022 C486-21

Pace Analytical Services, LLC - Minneapolis MN Matrix/Analyte Method Notes Solid and Chemical Materials 1,2,3,4,6, 7,8,9-Octachlorodibenzo-p-0ioxin (OCDD) EPA 8290A_1_(2/07) 1,2,3.4,6.7,8-Hpcdd EPA 8290A_1_(2/07) 1,2,3,4.6,7,8-Hpcdf EPA 8290A_1_(2107) 1,2,3,4,7,8,9-Hpcdf EPA 8290A_1_(2107) 1,2,3,4,7,B-Hxcdd EPA 8290A_1_(2107) 1,2,3.4,7,8-Hxcdf EPA 8290A_1_(2107) 1,2,3,6,7,8-Hxcdd EPA 8290A_1_(2107) 1,2,3,6,7,8-Hxcdf EPA 8290A_1_(2107) 1,2,3,7,8,9-Hxcdd EPA 8290A_1_(2/07) 1,2,3,7,8,9-Hxcdf EPA 8290A_1_(2107) 1,2 ,3,7,8-Pecdd EPA 8290A_1_{2107) 1,2,3,7,8-Pecdf EPA 8290A_1_(2107) 2,3,4,6, 7,8-Hxcdf EPA 8290A_1_(2107) 2,3,4,7,8-Pecdf EPA 8290A_1_(2107) 2,3,7,8-TCDD EPA 8290A_1_(2107) 2,3,7,8-TCDF EPA 8290A_1_(2l07)

Hpcdd, total EPA 8290A_1_(2/07)

Hpcdf, total EPA 8290A_1_(2/07)

Hxcdd, IolaI EPA 8290A_1_(2107)

Hxcdf, total EPA 8290A_1_(2107)

Pecdd, IolaI EPA 8290A_1_(2107)

Peed!, total EPA 8290A_1_(2/07)

TCDD, total EPA 8290A_1_(2107)

TCDF, total EPA 8290A_1_(2/07)

Accredited Parameter Note Detail (1) Accreditation based in part on recognition of Minnesota NELAP accreditation. (2) Washington Department of Ecology Analytical Methods for Petroleum Hydrocarbons, Publication Number ECY 97-602, June 1997. (3)

Approved for compliance testing only when holding time is met. (4) Accreditation limited to water. (5) Accreditation based in part on recognition of Oregon NELAP accreditation.

02/23/2021 Authentication Signature Date Rebecca Wood, Lab Accreditation Unit Supervisor Washington State Depanment of Ecology Laboratory Accreditation Unit Effective Date: 2/1912021 Page 31 of 31 Scope of Accreditation Report for Pace Analytical Services, LLC- Minneapolis MN Scope Expires: 2/18/2022 C486-21

A002515, NRR E-mail Capture - (External Sender) Energy Northwest Columbia Generating Station 2021 Priority Pollutant Discharge Monitoring Report

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A002515, NRR E-mail Capture - (External Sender) Energy Northwest Columbia Generating Station 2021 Priority Pollutant Discharge Monitoring Report

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