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September 03, 2020

RE:

Order No.: 2008275

SAMPLE IDENTIFICATION

Invoice No.: 154559 PO No.:

U.S. Fish & Wildlife

Attn: Cashell Villa

P.O. Box 576 Loleta, CA 95551

ELAP No.1247-Expires July 2021

ND = Not Detected at the Reporting Limit

Limit = Reporting Limit

All solid results are expressed on a wet-weight basis unless otherwise noted.

Flag = Explanation in Case Narrative

Fraction Client Sample Description

01A Treated

01B Treated

01C Treated

02A Raw

02B Raw

02C Raw

02H Raw

Approved for release by:

5680 West End Road ● Arcata, California 95521-9202 ● 707-822-4649 ● www.northcoastlabs.com

Roxanne Moore, Project Manager

CASE NARRATIVE

WorkOrder: 2008275

Date: 03-Sep-2020

Samples for pH, chlorine and dissolved oxygen analysis must be analyzed within 15 minutes of collection. Therefore, any samples requiring these analyses were analyzed past the official holding time.

The samples were received on ice with a temperature above the EPA recommended temperature of less than or equal to 6° C.

MBAS:

Sample Raw cound not be analzyed due to the sample matrix.

5680 West End Road ● Arcata, California 95521-9202 ● 707-822-4649 ● www.northcoastlabs.com

NORTH COAST LABORATORIES

Date: 03-Sep-2020 ANALYTICAL REPORT

Client Sample ID: Treated

Collected: 8/17/2020 8:50Lab ID: 2008275-01A

Received: 8/17/2020

Alkalinity SM 2320B, 1997. Revs 2011.Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Alkalinity 8/23/20201.0 mg/L CaCO3 1.0260

Anions by Ion Chromatography EPA 300.0 Rev 2.1 (1993)Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Chloride 8/18/20200.50 mg/L 5.067 8/18/2020

Fluoride 8/18/20200.10 mg/L 1.0ND 8/18/2020

Sulfate 8/18/20200.50 mg/L 1.0ND 8/18/2020

Conductivity SM 2510B, 1997. Revs 2011Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Conductivity 8/24/20201.0 µS/cm 1.0690

Corrosivity Calculation (@20ºC) SM 2330B, 2005. Revs 2010Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Corrosivity 9/2/2020N/A Langlier 1.0-0.46

Forms of Alkalinity SM 2320B, 1997. Revs 2011Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Bicarbonate 8/26/20201.0 mg/L CaCO3 1.0260

Carbonate 8/26/20201.0 mg/L CaCO3 1.0ND

Hydroxide 8/26/20201.0 mg/L CaCO3 1.0ND

Nitrate and/or Nitrite EPA 300.0 Rev 2.1 (1993)Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Nitrate (as Nitrogen) 8/18/20200.10 mg/L 1.0ND 8/18/2020

Nitrite (as Nitrogen) 8/18/20200.10 mg/L 1.0ND 8/18/2020 pH SM 4500-HB, 2000. Revs 2011Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag pH 8/17/2020N/A pH Units 1.07.2

Total Dissolved Solids SM 2540C, 1997. Revs 2011Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Total Dissolved Solids 8/24/202010 mg/L 1.0390

Client Sample ID: Treated

Collected: 8/17/2020 8:50Lab ID: 2008275-01B

Received: 8/17/2020

Hardness SM 2340B, 1997. Revs 2011Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Hardness 8/26/20201.0 mg/L CaCO3 1.0190 8/21/2020

5680 West End Road ● Arcata, California 95521-9202 ● 707-822-4649 ● www.northcoastlabs.com

Client Sample ID: Treated

Collected: 8/17/2020 8:50Lab ID: 2008275-01B

Received: 8/17/2020

ICAP Metals EPA 200.7 Rev 4.4 (1994)Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Aluminum 8/21/202050 µg/L 1.0ND 8/21/2020

Calcium 8/21/202020 µg/L 1.023,000 8/21/2020

Iron 8/21/202050 µg/L 1.01,600 8/21/2020

Magnesium 8/21/202020 µg/L 1.032,000 8/21/2020

Manganese 8/21/20201.0 µg/L 1.0160 8/21/2020

Potassium 8/21/202020 µg/L 1.07,300 8/21/2020

Silver 8/21/20205.0 µg/L 1.0ND 8/21/2020

Sodium 8/21/202020 µg/L 1.056,000 8/21/2020

ICP-MS Metals EPA 200.8 Rev 5.4 (1994)Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Antimony 8/22/20201.0 µg/L 1.0ND 8/21/2020

Arsenic 8/22/20202.0 µg/L 1.0ND 8/21/2020

Barium 8/22/20201.0 µg/L 1.0230 8/21/2020

Beryllium 8/22/20201.0 µg/L 1.0ND 8/21/2020

Cadmium 8/22/20201.0 µg/L 1.0ND 8/21/2020

Chromium 8/22/20201.0 µg/L 1.0ND 8/21/2020

Copper 8/22/20201.0 µg/L 1.040 8/21/2020

Lead 8/22/20201.0 µg/L 1.0ND 8/21/2020

Nickel 8/22/20202.0 µg/L 1.0ND 8/21/2020

Selenium 8/22/20205.0 µg/L 1.0ND 8/21/2020

Thallium 8/22/20201.0 µg/L 1.0ND 8/21/2020

Zinc 8/22/20205.0 µg/L 1.010 8/21/2020

Mercury EPA 245.1 Rev 3.0 (1994)Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Mercury 8/26/20201.0 µg/L 1.0ND 8/25/2020

Client Sample ID: Treated

Collected: 8/17/2020 8:50Lab ID: 2008275-01C

Received: 8/17/2020

Apparent Color SM 2120B, 2001. Revs 2011Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Apparent Color 8/18/20203.0 C.U. 1.030

Odor (at 60º C) SM 2150B, 1997. Revs 2011Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Odor 8/18/20201.0 TON 1.04.0

Turbidity EPA 180.1Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Turbidity 8/18/20200.050 NTU 1.08.7

5680 West End Road ● Arcata, California 95521-9202 ● 707-822-4649 ● www.northcoastlabs.com

Client Sample ID: Raw

Collected: 8/17/2020 9:00Lab ID: 2008275-02A

Received: 8/17/2020

Alkalinity SM 2320B, 1997. Revs 2011.Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Alkalinity 8/23/20201.0 mg/L CaCO3 1.0260

Anions by Ion Chromatography EPA 300.0 Rev 2.1 (1993)Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Chloride 8/18/20200.50 mg/L 5.067 8/18/2020

Fluoride 8/18/20200.10 mg/L 1.0ND 8/18/2020

Sulfate 8/18/20200.50 mg/L 1.00.58 8/18/2020

Conductivity SM 2510B, 1997. Revs 2011Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Conductivity 8/24/20201.0 µS/cm 1.0670

Corrosivity Calculation (@20ºC) SM 2330B, 2005. Revs 2010Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Corrosivity 9/2/2020N/A Langlier 1.0-0.66

Forms of Alkalinity SM 2320B, 1997. Revs 2011Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Bicarbonate 8/26/20201.0 mg/L CaCO3 1.0260

Carbonate 8/26/20201.0 mg/L CaCO3 1.0ND

Hydroxide 8/26/20201.0 mg/L CaCO3 1.0ND

Nitrate and/or Nitrite EPA 300.0 Rev 2.1 (1993)Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Nitrate (as Nitrogen) 8/18/20200.10 mg/L 1.0ND 8/18/2020

Nitrite (as Nitrogen) 8/18/20200.10 mg/L 1.0ND 8/18/2020 pH SM 4500-HB, 2000. Revs 2011Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag pH 8/17/2020N/A pH Units 1.07.0

Total Dissolved Solids SM 2540C, 1997. Revs 2011Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Total Dissolved Solids 8/24/202010 mg/L 1.0370

Client Sample ID: Raw

Collected: 8/17/2020 9:00Lab ID: 2008275-02B

Received: 8/17/2020

Hardness SM 2340B, 1997. Revs 2011Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Hardness 8/27/20201.0 mg/L CaCO3 1.0200 8/24/2020

5680 West End Road ● Arcata, California 95521-9202 ● 707-822-4649 ● www.northcoastlabs.com

Client Sample ID: Raw

Collected: 8/17/2020 9:00Lab ID: 2008275-02B

Received: 8/17/2020

ICAP Metals EPA 200.7 Rev 4.4 (1994)Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Aluminum 8/27/202050 µg/L 1.0870 8/24/2020

Calcium 8/27/202020 µg/L 1.023,000 8/24/2020

Iron 8/27/202050 µg/L 1.04,400 8/24/2020

Magnesium 8/27/202020 µg/L 1.036,000 8/24/2020

Manganese 8/27/20201.0 µg/L 1.0160 8/24/2020

Potassium 8/27/202020 µg/L 1.07,300 8/24/2020

Silver 8/27/20205.0 µg/L 1.0ND 8/24/2020

Sodium 8/27/202020 µg/L 1.072,000 8/24/2020

ICP-MS Metals EPA 200.8 Rev 5.4 (1994)Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Antimony 8/26/20201.0 µg/L 1.0ND 8/24/2020

Arsenic 8/26/20202.0 µg/L 1.0ND 8/24/2020

Barium 8/26/20201.0 µg/L 1.0260 8/24/2020

Beryllium 8/26/20201.0 µg/L 1.0ND 8/24/2020

Cadmium 8/26/20201.0 µg/L 1.0ND 8/24/2020

Chromium 8/26/20201.0 µg/L 1.01.8 8/24/2020

Copper 8/26/20201.0 µg/L 1.04.2 8/24/2020

Lead 8/26/20201.0 µg/L 1.0ND 8/24/2020

Nickel 8/26/20202.0 µg/L 1.02.8 8/24/2020

Selenium 8/26/20205.0 µg/L 1.0ND 8/24/2020

Thallium 8/26/20201.0 µg/L 1.0ND 8/24/2020

Zinc 8/26/20205.0 µg/L 1.07.3 8/24/2020

Mercury EPA 245.1 Rev 3.0 (1994)Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Mercury 8/26/20201.0 µg/L 1.0ND 8/25/2020

Client Sample ID: Raw

Collected: 8/17/2020 9:00Lab ID: 2008275-02C

Received: 8/17/2020

Apparent Color SM 2120B, 2001. Revs 2011Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Apparent Color 8/18/20203.0 C.U. 1.010

Odor (at 60º C) SM 2150B, 1997. Revs 2011Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Odor 8/18/20201.0 TON 1.01.0

Turbidity EPA 180.1Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Turbidity 8/18/20200.10 NTU 2.041

5680 West End Road ● Arcata, California 95521-9202 ● 707-822-4649 ● www.northcoastlabs.com

Client Sample ID: Raw

Collected: 8/17/2020 9:00Lab ID: 2008275-02H

Received: 8/17/2020

Nitrogen-Phosphorous Containing Pesticides EPA 507Test Name: Reference:

Parameter Result UnitsLimit DF AnalyzedExtractedFlag

Molinate 8/29/20200.50 µg/L 1.0ND 8/25/2020

Propachlor 8/29/20200.50 µg/L 1.0ND 8/25/2020

Dimethoate 8/29/20200.050 µg/L 1.0ND 8/25/2020

Simazine 8/29/20200.25 µg/L 1.0ND 8/25/2020

Atrazine 8/29/20200.25 µg/L 1.0ND 8/25/2020

Diazinon 8/29/20200.050 µg/L 1.0ND 8/25/2020

Metribuzin 8/29/20200.25 µg/L 1.0ND 8/25/2020

Alachlor 8/29/20201.0 µg/L 1.0ND 8/25/2020

Prometryn 8/29/20200.25 µg/L 1.0ND 8/25/2020

Bromacil 8/29/20201.0 µg/L 1.0ND 8/25/2020

Thiobencarb 8/29/20200.50 µg/L 1.0ND 8/25/2020

Metolachlor 8/29/20201.0 µg/L 1.0ND 8/25/2020

Butachlor 8/29/20201.0 µg/L 1.0ND 8/25/2020

Surrogate: 1,3-Dimethyl-2-nitrobenzene 8/29/202070-130 % Rec 1.078.5 8/25/2020

5680 West End Road ● Arcata, California 95521-9202 ● 707-822-4649 ● www.northcoastlabs.com

Date: 9/3/2020North Coast Laboratories, Ltd.

Project:

CLIENT: U.S. Fish & Wildlife

Work Order: 2008275

QC SUMMARY REPORT

Method Blank

Sample ID MB-38954 Batch ID: 38954 Test Code: 507W Analysis Date 8/28/2020 11:28:22 PM Prep Date 8/25/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: ORGC13_200828A SeqNo: 1487413

Molinate 0.50ND

Propachlor 0.50ND

Dimethoate 0.050ND

Simazine 0.25ND

Atrazine 0.25ND

Diazinon 0.050ND

Metribuzin 0.25ND

Alachlor 1.0ND

Prometryn 0.25ND

Bromacil 1.0ND

Thiobencarb 0.50ND

Metolachlor 1.0ND

Butachlor 1.0ND

Surrogate: 1,3-Dimethyl-2-nitrobenze 1.00 73.7% 70 1300.20 0 00.737

Sample ID MBLK Batch ID: R104252 Test Code: ALKW Analysis Date 8/23/2020 1:00:00 PM Prep Date

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: mg/L CaCO3

Limit

Client ID: Run ID: WC_200823A SeqNo: 1486215

Alkalinity 1.0ND

Sample ID MBLK-081820 Batch ID: R104215 Test Code: ICIONW Analysis Date 8/18/2020 6:20:42 PM Prep Date 8/18/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: mg/L

Limit

Client ID: Run ID: INIC2_200818B SeqNo: 1485616

Chloride 0.10ND

Fluoride 0.10ND

Sulfate 0.50ND

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

CLIENT: U.S. Fish & Wildlife

Work Order: 2008275

QC SUMMARY REPORT

Method Blank

Sample ID MBLK-081820 Batch ID: R104212 Test Code: ICNOW Analysis Date 8/18/2020 6:20:42 PM Prep Date 8/18/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: mg/L

Limit

Client ID: Run ID: INIC2_200818A SeqNo: 1485556

Nitrate (as Nitrogen) 0.10ND

Nitrite (as Nitrogen) 0.10ND

Sample ID MB-38938 Batch ID: 38938 Test Code: ICPMSDW Analysis Date 8/22/2020 11:11:25 AM Prep Date 8/21/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: ICPMS2_200822B SeqNo: 1486243

Antimony 1.0ND

Arsenic 2.0ND

Barium 1.0ND

Beryllium 1.0ND

Cadmium 1.0ND

Chromium 1.0ND

Copper 1.0ND

Lead 1.0ND

Nickel 2.0ND

Selenium 5.0ND

Thallium 1.0ND

Zinc 5.0ND

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

Work Order: 2008275

QC SUMMARY REPORT

Method Blank

Sample ID MB-38945 Batch ID: 38945 Test Code: ICPMSDW Analysis Date 8/26/2020 12:33:27 PM Prep Date 8/24/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: ICPMS2_200826A SeqNo: 1486899

Antimony 1.0ND

Arsenic 2.0ND

Barium 1.0ND

Beryllium 1.0ND

Cadmium 1.0ND

Chromium 1.0ND

Copper 1.0ND

Lead 1.0ND

Nickel 2.0ND

Selenium 5.0ND

Thallium 1.0ND

Zinc 5.0ND

Sample ID MB-38938 Batch ID: 38938 Test Code: ICPW Analysis Date 8/21/2020 1:40:10 PM Prep Date 8/21/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: INICP2_200821A SeqNo: 1486164

Aluminum 50ND

Calcium 100ND

Iron 50ND

Magnesium 100ND

Manganese 1.0ND

Potassium 100ND

Silver 5.0ND

Sodium 100ND

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

Work Order: 2008275

QC SUMMARY REPORT

Method Blank

Sample ID MB-38945 Batch ID: 38945 Test Code: ICPW Analysis Date 8/27/2020 9:46:52 AM Prep Date 8/24/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: INICP2_200827B SeqNo: 1487045

Aluminum 50ND

Calcium 100ND

Iron 50ND

Magnesium 100ND

Manganese 1.0ND

Potassium 100ND

Silver 5.0ND

Sodium 100ND

Sample ID MB-38951 Batch ID: 38951 Test Code: MERCW Analysis Date 8/26/2020 3:16:57 PM Prep Date 8/25/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: CVAA2_200826A SeqNo: 1486938

Mercury 1.0ND

Sample ID MBLK Batch ID: R104355 Test Code: TDS Analysis Date 8/24/2020 8:45:00 PM Prep Date

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: mg/L

Limit

Client ID: Run ID: WC_200824E SeqNo: 1487994

Total Dissolved Solids 10ND

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

CLIENT: U.S. Fish & Wildlife

Work Order: 2008275

QC SUMMARY REPORT

Sample Matrix Spike

Sample ID 2008275-02HMS Batch ID: 38954 Test Code: 507W Analysis Date 8/29/2020 2:23:05 AM Prep Date 8/25/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Raw Run ID: ORGC13_200828A SeqNo: 1487434

Molinate 2.50 74.6% 70 1300.50 0 01.864

Propachlor 2.50 75.3% 70 1300.50 0 01.882

Dimethoate 0.250 79.6% 70 1300.050 0 00.1991

Simazine 1.25 76.4% 70 1300.25 0 00.9549

Atrazine 1.25 73.1% 70 1300.25 0 00.9141

Diazinon 0.250 72.4% 70 1300.050 0 00.1811

Metribuzin 1.25 73.3% 70 1300.25 0 00.9164

Alachlor 5.00 74.8% 70 1301.0 0 03.740

Prometryn 1.25 73.3% 70 1300.25 0 00.9167

Bromacil 5.00 75.7% 70 1301.0 0 03.783

Thiobencarb 2.50 72.8% 70 1300.50 0 01.820

Metolachlor 5.00 74.1% 70 1301.0 0 03.707

Butachlor 5.00 73.2% 70 1301.0 0 03.659

Surrogate: 1,3-Dimethyl-2-nitrobenze 1.00 73.1% 70 1300.20 0 00.731

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

Work Order: 2008275

QC SUMMARY REPORT

Sample Matrix Spike Duplicate

Sample ID 2008275-02HMSD Batch ID: 38954 Test Code: 507W Analysis Date 8/29/2020 3:06:45 AM Prep Date 8/25/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Raw Run ID: ORGC13_200828A SeqNo: 1487435

Molinate 2.50 80.8% 70 130 300.50 0 1.86 8.03%2.020

Propachlor 2.50 77.2% 70 130 300.50 0 1.88 2.55%1.931

Dimethoate 0.250 80.9% 70 130 300.050 0 0.199 1.55%0.2022

Simazine 1.25 79.5% 70 130 300.25 0 0.955 4.01%0.9940

Atrazine 1.25 76.0% 70 130 300.25 0 0.914 3.79%0.9494

Diazinon 0.250 75.5% 70 130 300.050 0 0.181 4.17%0.1888

Metribuzin 1.25 75.8% 70 130 300.25 0 0.916 3.28%0.9470

Alachlor 5.00 78.7% 70 130 301.0 0 3.74 5.05%3.934

Prometryn 1.25 77.5% 70 130 300.25 0 0.917 5.54%0.9689

Bromacil 5.00 79.3% 70 130 301.0 0 3.78 4.75%3.967

Thiobencarb 2.50 77.8% 70 130 300.50 0 1.82 6.64%1.946

Metolachlor 5.00 78.3% 70 130 301.0 0 3.71 5.45%3.915

Butachlor 5.00 78.2% 70 130 301.0 0 3.66 6.65%3.911

Surrogate: 1,3-Dimethyl-2-nitrobenze 1.00 80.0% 70 130 300.20 0 0.731 9.03%0.800

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

CLIENT: U.S. Fish & Wildlife

Work Order: 2008275

QC SUMMARY REPORT

Laboratory Control Spike

Sample ID LCS-38954 Batch ID: 38954 Test Code: 507W Analysis Date 8/29/2020 12:12:02 AM Prep Date 8/25/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: ORGC13_200828A SeqNo: 1487414

Molinate 2.50 76.8% 70 1300.50 0 01.919

Propachlor 2.50 75.2% 70 1300.50 0 01.880

Dimethoate 0.250 77.9% 70 1300.050 0 00.1948

Simazine 1.25 77.6% 70 1300.25 0 00.9699

Atrazine 1.25 74.5% 70 1300.25 0 00.9313

Diazinon 0.250 75.1% 70 1300.050 0 00.1878

Metribuzin 1.25 75.2% 70 1300.25 0 00.9399

Alachlor 5.00 76.9% 70 1301.0 0 03.846

Prometryn 1.25 75.9% 70 1300.25 0 00.9487

Bromacil 5.00 76.9% 70 1301.0 0 03.843

Thiobencarb 2.50 75.7% 70 1300.50 0 01.891

Metolachlor 5.00 75.5% 70 1301.0 0 03.777

Butachlor 5.00 75.6% 70 1301.0 0 03.781

Surrogate: 1,3-Dimethyl-2-nitrobenze 1.00 74.3% 70 1300.20 0 00.743

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

Work Order: 2008275

QC SUMMARY REPORT

Laboratory Control Spike Duplicate

Sample ID LCSD-38954 Batch ID: 38954 Test Code: 507W Analysis Date 8/29/2020 12:55:43 AM Prep Date 8/25/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: ORGC13_200828A SeqNo: 1487415

Molinate 2.50 75.7% 70 130 300.50 0 1.92 1.39%1.892

Propachlor 2.50 73.1% 70 130 300.50 0 1.88 2.81%1.828

Dimethoate 0.250 75.6% 70 130 300.050 0 0.195 2.97%0.1891

Simazine 1.25 75.2% 70 130 300.25 0 0.970 3.07%0.9406

Atrazine 1.25 72.1% 70 130 300.25 0 0.931 3.24%0.9016

Diazinon 0.250 71.8% 70 130 300.050 0 0.188 4.56%0.1794

Metribuzin 1.25 71.8% 70 130 300.25 0 0.940 4.66%0.8970

Alachlor 5.00 74.2% 70 130 301.0 0 3.85 3.54%3.712

Prometryn 1.25 73.1% 70 130 300.25 0 0.949 3.81%0.9132

Bromacil 5.00 74.2% 70 130 301.0 0 3.84 3.53%3.710

Thiobencarb 2.50 72.6% 70 130 300.50 0 1.89 4.07%1.816

Metolachlor 5.00 73.1% 70 130 301.0 0 3.78 3.25%3.656

Butachlor 5.00 73.0% 70 130 301.0 0 3.78 3.49%3.651

Surrogate: 1,3-Dimethyl-2-nitrobenze 1.00 76.8% 70 130 300.20 0 0.743 3.30%0.768

Sample ID LCS WL-08232001 Batch ID: R104252 Test Code: ALKW Analysis Date 8/23/2020 1:00:00 PM Prep Date

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: mg/L CaCO3

Limit

Client ID: Run ID: WC_200823A SeqNo: 1486216

Alkalinity 100 95.6% 90 1101.0 0 095.60

Sample ID LCS WL-081820-1 Batch ID: R104215 Test Code: ICIONW Analysis Date 8/18/2020 6:53:59 PM Prep Date 8/18/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: mg/L

Limit

Client ID: Run ID: INIC2_200818B SeqNo: 1485618

Chloride 5.00 95.5% 90 1100.10 0 04.776

Fluoride 5.00 98.6% 90 1100.10 0 04.929

Sulfate 50.0 98.9% 90 1100.50 0 049.43

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

Work Order: 2008275

QC SUMMARY REPORT

Laboratory Control Spike Duplicate

Sample ID LCSD WL-081820- Batch ID: R104215 Test Code: ICIONW Analysis Date 8/18/2020 7:10:37 PM Prep Date 8/18/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: mg/L

Limit

Client ID: Run ID: INIC2_200818B SeqNo: 1485619

Chloride 5.00 97.2% 90 110 100.10 0 4.78 1.75%4.861

Fluoride 5.00 100% 90 110 100.10 0 4.93 1.73%5.015

Sulfate 50.0 100% 90 110 100.50 0 49.4 1.28%50.07

Sample ID LCS WL-081820-1 Batch ID: R104212 Test Code: ICNOW Analysis Date 8/18/2020 6:53:59 PM Prep Date 8/18/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: mg/L

Limit

Client ID: Run ID: INIC2_200818A SeqNo: 1485558

Nitrate (as Nitrogen) 5.00 97.8% 90 1100.10 0 04.889

Nitrite (as Nitrogen) 5.00 100% 90 1100.10 0 05.013

Sample ID LCSD WL-081820- Batch ID: R104212 Test Code: ICNOW Analysis Date 8/18/2020 7:10:37 PM Prep Date 8/18/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: mg/L

Limit

Client ID: Run ID: INIC2_200818A SeqNo: 1485559

Nitrate (as Nitrogen) 5.00 98.0% 90 110 100.10 0 4.89 0.275%4.902

Nitrite (as Nitrogen) 5.00 101% 90 110 100.10 0 5.01 0.715%5.049

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

Work Order: 2008275

QC SUMMARY REPORT

Laboratory Control Spike

Sample ID LCS-38938 Batch ID: 38938 Test Code: ICPMSDW Analysis Date 8/22/2020 11:15:34 AM Prep Date 8/21/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: ICPMS2_200822B SeqNo: 1486244

Antimony 500 102% 85 1155.0 0 0508.8

Arsenic 500 102% 85 11510 0 0509.6

Barium 500 93.0% 85 1155.0 0 0464.9

Beryllium 500 99.9% 85 1155.0 0 0499.3

Cadmium 500 101% 85 1155.0 0 0506.3

Chromium 500 97.0% 85 1155.0 0 0484.9

Copper 500 95.6% 85 1155.0 0 0477.8

Lead 500 98.1% 85 1155.0 0 0490.3

Nickel 500 96.5% 85 11510 0 0482.5

Selenium 500 107% 85 11525 0 0532.6

Thallium 500 98.4% 85 1155.0 0 0492.0

Zinc 500 101% 85 11525 0 0504.9

Sample ID LCSD-38938 Batch ID: 38938 Test Code: ICPMSDW Analysis Date 8/22/2020 11:19:43 AM Prep Date 8/21/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: ICPMS2_200822B SeqNo: 1486245

Antimony 500 104% 85 115 205.0 0 509 2.33%520.8

Arsenic 500 104% 85 115 2010 0 510 2.44%522.2

Barium 500 96.2% 85 115 205.0 0 465 3.36%480.8

Beryllium 500 104% 85 115 205.0 0 499 4.03%519.8

Cadmium 500 104% 85 115 205.0 0 506 2.77%520.6

Chromium 500 101% 85 115 205.0 0 485 4.01%504.7

Copper 500 99.3% 85 115 205.0 0 478 3.80%496.4

Lead 500 101% 85 115 205.0 0 490 2.89%504.6

Nickel 500 101% 85 115 2010 0 482 4.87%506.6

Selenium 500 108% 85 115 2025 0 533 1.44%540.3

Thallium 500 101% 85 115 205.0 0 492 2.73%505.6

Zinc 500 103% 85 115 2025 0 505 2.17%516.0

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

Work Order: 2008275

QC SUMMARY REPORT

Laboratory Control Spike

Sample ID LCS-38945 Batch ID: 38945 Test Code: ICPMSDW Analysis Date 8/26/2020 12:07:23 PM Prep Date 8/24/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: ICPMS2_200826A SeqNo: 1486894

Antimony 500 105% 85 1155.0 0.291 0524.2

Arsenic 500 99.8% 85 11510 0 0498.8

Barium 500 96.6% 85 1155.0 0 0482.9

Beryllium 500 102% 85 1155.0 0 0510.1

Cadmium 500 102% 85 1155.0 0 0508.6

Chromium 500 100% 85 1155.0 0.402 0501.4

Copper 500 101% 85 1155.0 0 0503.7

Lead 500 99.5% 85 1155.0 0 0497.7

Nickel 500 99.1% 85 11510 0 0495.4

Selenium 500 97.7% 85 11525 0 0488.5

Thallium 500 100% 85 1155.0 0 0500.0

Zinc 500 102% 85 11525 0 0508.1

Sample ID LCSD-38945 Batch ID: 38945 Test Code: ICPMSDW Analysis Date 8/26/2020 12:11:32 PM Prep Date 8/24/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: ICPMS2_200826A SeqNo: 1486895

Antimony 500 105% 85 115 205.0 0.291 524 0.106%523.6

Arsenic 500 101% 85 115 2010 0 499 1.03%504.0

Barium 500 96.4% 85 115 205.0 0 483 0.176%482.1

Beryllium 500 102% 85 115 205.0 0 510 0.137%509.4

Cadmium 500 103% 85 115 205.0 0 509 1.00%513.7

Chromium 500 99.1% 85 115 205.0 0.402 501 1.15%495.7

Copper 500 99.2% 85 115 205.0 0 504 1.50%496.2

Lead 500 99.9% 85 115 205.0 0 498 0.387%499.7

Nickel 500 99.2% 85 115 2010 0 495 0.131%496.0

Selenium 500 100% 85 115 2025 0 488 2.73%502.0

Thallium 500 100% 85 115 205.0 0 500 0.147%500.8

Zinc 500 101% 85 115 2025 0 508 0.772%504.2

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

Work Order: 2008275

QC SUMMARY REPORT

Laboratory Control Spike

Sample ID LCS-38938 Batch ID: 38938 Test Code: ICPW Analysis Date 8/21/2020 1:42:13 PM Prep Date 8/21/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: INICP2_200821A SeqNo: 1486165

Aluminum 500 93.7% 85 11550 0 0468.5

Calcium 500 97.3% 85 115100 0 0486.4

Iron 500 99.1% 85 11550 1.30 0497.0

Magnesium 500 99.2% 85 115100 0 0495.9

Manganese 500 97.9% 85 1151.0 0 0489.6

Potassium 2,500 88.8% 85 115100 0 02,220

Silver 62.5 96.5% 85 1155.0 0 060.29

Sodium 500 94.9% 85 115100 0 0474.6

Sample ID LCSD-38938 Batch ID: 38938 Test Code: ICPW Analysis Date 8/21/2020 1:44:33 PM Prep Date 8/21/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: INICP2_200821A SeqNo: 1486166

Aluminum 500 93.7% 85 115 2050 0 468 0.0158%468.6

Calcium 500 96.7% 85 115 20100 0 486 0.565%483.7

Iron 500 99.0% 85 115 2050 1.30 497 0.105%496.4

Magnesium 500 99.9% 85 115 20100 0 496 0.681%499.3

Manganese 500 97.8% 85 115 201.0 0 490 0.0879%489.2

Potassium 2,500 89.3% 85 115 20100 0 2,220 0.557%2,232

Silver 62.5 95.7% 85 115 205.0 0 60.3 0.802%59.81

Sodium 500 95.2% 85 115 20100 0 475 0.284%476.0

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

Work Order: 2008275

QC SUMMARY REPORT

Laboratory Control Spike

Sample ID LCS-38945 Batch ID: 38945 Test Code: ICPW Analysis Date 8/27/2020 9:48:46 AM Prep Date 8/24/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: INICP2_200827B SeqNo: 1487046

Aluminum 500 97.5% 85 11550 0 0487.7

Calcium 500 100% 85 115100 0 0501.2

Iron 500 102% 85 11550 1.36 0510.9

Magnesium 500 103% 85 115100 0 0514.1

Manganese 500 99.4% 85 1151.0 0 0497.1

Potassium 2,500 97.8% 85 115100 0 02,446

Silver 62.5 100% 85 1155.0 0 062.73

Sodium 500 99.1% 85 115100 0 0495.7

Sample ID LCSD-38945 Batch ID: 38945 Test Code: ICPW Analysis Date 8/27/2020 9:51:07 AM Prep Date 8/24/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: INICP2_200827B SeqNo: 1487047

Aluminum 500 97.2% 85 115 2050 0 488 0.388%485.8

Calcium 500 98.5% 85 115 20100 0 501 1.79%492.3

Iron 500 102% 85 115 2050 1.36 511 0.296%512.5

Magnesium 500 102% 85 115 20100 0 514 0.732%510.3

Manganese 500 98.5% 85 115 201.0 0 497 0.958%492.4

Potassium 2,500 97.4% 85 115 20100 0 2,450 0.431%2,435

Silver 62.5 100% 85 115 205.0 0 62.7 0.330%62.52

Sodium 500 99.0% 85 115 20100 0 496 0.151%494.9

Sample ID LCS-38951 Batch ID: 38951 Test Code: MERCW Analysis Date 8/26/2020 3:18:49 PM Prep Date 8/25/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: CVAA2_200826A SeqNo: 1486939

Mercury 5.00 99.3% 85 1151.0 0 04.966

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

Work Order: 2008275

QC SUMMARY REPORT

Laboratory Control Spike Duplicate

Sample ID LCSD-38951 Batch ID: 38951 Test Code: MERCW Analysis Date 8/26/2020 3:20:35 PM Prep Date 8/25/2020

Analyte Result SPK value SPK Ref Val % Rec RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

Limit

Client ID: Run ID: CVAA2_200826A SeqNo: 1486940

Mercury 5.00 96.6% 85 115 201.0 0 4.97 2.77%4.830

Qualifiers:

J - Analyte detected below quantitation limits

B - Analyte detected in the associated Method BlankS - Spike Recovery outside accepted recovery limits

R - RPD outside accepted recovery limits

ND - Not Detected at the Reporting Limit

EMSL Analytical, Inc.

464 McCormick Street San Leandro, CA 94577

Phone/Fax: (510) 895-3675 / (510) 895-3680 http://www.EMSL.com / sanleandrolab@emsl.com

NORT99

092014186

2008275

EMSL Order ID:

Customer ID:

Customer PO:

Project ID:

Attn: Phone: (707) 822-4649

Fax: (707) 822-6831

Received: 08/18/2020

Analyzed: 09/01/2020

Results

North Coast Laboratories, LTD.

5680 West End Road

Arcata, CA 95521-9202

2008275Proj:

Test Report: Determination of Asbestos Structures >10µm in Drinking Water

Performed by the 100.2 Method (EPA 600/R-94/134)

Sample

Filtration

Date/Time

Sample ID

Client / EMSL

ASBESTOS

Confidence

Limits

ConcentrationAnalytical

Sensitivity

Fibers

Detected

Asbestos

Types Area

Analyzed

(mm²)

Effective

Filter

Area

(mm²)

Original

Sample Vol.

Filtered

(ml) MFL (million fibers per liter)

0.54ND <0.54 0.00 - 2.00None Detected8/18/2020

11:22 AM

1296 0.2420102008275-02E

092014186-0001

08/17/2020 09:00 AMCollection Date/Time:

Page 1 of 1Test Report: TEM100.2-2.2.0.2 Printed: 9/01/2020 12:40PM

Analyst(s)

Cecilia Yu, Laboratory Manager or Other Approved Signatory

Any questions please contact Cecilia Yu.

EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. This report relates only to the samples reported above, and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. The report reflects the samples as received. Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted. Estimation of uncertainty is available on request. Sample collection and containers provided by the client, acceptable bottle blank level is defined as ≤0.01MFL>10um. ND=None Detected. No Fibers Detected: the value will be reported as less than 369% of the concentration equivalent to one fiber. 1 to 4 fibers: The result will be reported as less than the corresponding upper 95% confidence limit (Poisson),5 to 30 fibers: Mean and 95% confidence intervals will be reported on the basis of the Poisson assumption. When more than 30 fibers are counted, both the Gaussian 95% confidence interval and the Poisson 95% confidence interval will be calculated. The large of these two intervals will be selected for data reporting. When the Gaussian 95% confidence interval is selected for data reporting, the Poisson will also be noted.

Samples analyzed by EMSL Analytical, Inc San Leandro, CA CA ELAP 1620, HI reciprocity, ID CA 01477, WA C884

Nonette Patron (1)

Initial report from: 09/01/2020 12:40:10

Thank you for using BSK Associates for your analytical testing needs. In the following pages, you will find the test results for the samples submitted to our laboratory on 8/18/2020. The results have been approved for release by our Laboratory Director as indicated by the authorizing signature below.

The samples were analyzed for the test(s) indicated on the Chain of Custody (see attached) and the results relate only to the samples analyzed. BSK certifies that the testing was performed in accordance with the quality system requirements specified in the 2009 TNI Standard. Any deviations from this standard or from the method requirements for each test procedure performed will be annotated alongside the analytical result or noted in the Case Narrative. Unless otherwise noted, the sample results are reported on an �as received� basis.

This certificate of analysis shall not be reproduced except in full, without written approval of the laboratory.

If additional clarification of any information is required, please contact your Project Manager, Heather S. White , at 559-497-2888.

Thank you again for using BSK Associates. We value your business and appreciate your loyalty.

Sincerely, North Coast Laboratories

Arcata, CA 95521

5680 West End Rd.

Dear Ron Canady, Ron Canady

8/28/2020

ADH1717

RE: Report for ADH1717 General

Heather S. White, Project Manager

Accredited in Accordance with NELAP

ORELAP #4021-009

BSK Associates Laboratory Fresno

1414 Stanislaus St

Fresno, CA 93706

559-497-2888 (Main)

559-485-6935 (FAX)

Invoice: AD17369 www.BSKAssociates.com

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

ADH1717 FINAL 08282020 1652

ADH1717

General

Case Narrative

Project and Report Details

Client: North Coast Laboratories

Report To:

Project #:

Received: 8/18/2020 - 11:01

Ron Canady

Invoice To:

Invoice Attn:

North Coast Laboratories

Accounts Payable

Project PO#: 2008275

Report Due: 9/01/2020

Invoice Details

2008275

Sample Receipt Conditions

Default CoolerCooler:

Temperature on Receipt ºC: 2.5

Containers Intact

COC/Labels Agree

Preservation Confirmed

Received On Wet Ice

Received On Blue Ice

Packing Material - Bubble Wrap

Sample(s) were received in temperature range.

Initial receipt at BSK-FAL

Data Qualifiers

The following qualifiers have been applied to one or more analytical results:

***None applied***

Recipient(s) Report Format

Report Distribution

CC:

Ron Canady FINAL.RPT

Reporting FINAL.RPT www.BSKAssociates.com

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

ADH1717 FINAL 08282020 1652

Certificate of Analysis

General

2008275

Sample Description: 2008275-02F // Raw

Sample ID: ADH1717-01 08/17/2020 - 09:00

Sampled By:

Grab

Cashell Villa Drinking Water

Sample Date - Time:

Matrix:

Sample Type:

BSK Associates Laboratory Fresno

General Chemistry

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch QualMDL

0.0050 mg/LCyanide (total) SM 4500-CN E 08/19/20 08/21/20ADH1049ND 10.0022 www.BSKAssociates.com

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

ADH1717 FINAL 08282020 1652

Certificate of Analysis

General

2008275

Sample Description: 2008275-02G // Raw

Sample ID: ADH1717-02 08/17/2020 - 09:00

Sampled By:

Grab

Cashell Villa Drinking Water

Sample Date - Time:

Matrix:

Sample Type:

BSK Associates Laboratory Fresno

General Chemistry

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch QualMDL

1.0 umhos/cmConductivity @ 25C SM 2510B 08/19/20 08/19/20ADH1014690 1

2.0 ug/LPerchlorate EPA 314.0 08/27/20 08/27/20ADH1455ND 1 www.BSKAssociates.com

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

ADH1717 FINAL 08282020 1652

General Chemistry Quality Control Report

BSK Associates Laboratory Fresno

Analyte Result Units Level

Spike

Result %REC Limits RPD Limit QualRL

Source %REC RPD Date

AnalyzedMDL

Batch: ADH1455 Prepared: 8/27/2020

Analyst: SELPrep Method: Method Specific Preparation

EPA 314.0 - Quality Control

Blank (ADH1455-BLK1)

Perchlorate ND ug/L2.0 08/27/20

Blank Spike (ADH1455-BS1)

85-115104Perchlorate 1516 ug/L2.0 ND 08/27/20

Matrix Spike (ADH1455-MS1), Source: ADH1765-01

80-12093Perchlorate 6.37.2 ug/L2.0 ND 08/27/20

Matrix Spike Dup (ADH1455-MSD1), Source: ADH1765-01

1580-120104 9Perchlorate 6.37.9 ug/L2.0 ND 08/27/20

Batch: ADH1014 Prepared: 8/19/2020

Analyst: CEGPrep Method: Method Specific Preparation

SM 2510B - Quality Control

Blank Spike (ADH1014-BS1)

90-11098Conductivity @ 25C 14001400 umhos/c m

1.0 ND 08/19/20

Blank Spike Dup (ADH1014-BSD1)

590-11098 0Conductivity @ 25C 14001400 umhos/c m

1.0 ND 08/19/20

Duplicate (ADH1014-DUP1), Source: ADH1752-02

50Conductivity @ 25C 510 umhos/c m

1.0 500 08/19/20

Batch: ADH1049 Prepared: 8/19/2020

Analyst: CEGPrep Method: Total Cyanide Distillation

SM 4500-CN E - Quality Control

Blank (ADH1049-BLK1)

Cyanide (total) ND mg/L0.0050 08/21/200.0022

Blank Spike (ADH1049-BS1)

80-120100Cyanide (total) 0.250.25 mg/L0.0050 08/21/200.0022

Blank Spike Dup (ADH1049-BSD1)

2080-120101 1Cyanide (total) 0.250.25 mg/L0.0050 08/21/200.0022

Matrix Spike (ADH1049-MS1), Source: VDH0274-04

80-120102Cyanide (total) 0.250.25 mg/L0.0050 ND 08/21/200.0022

Matrix Spike Dup (ADH1049-MSD1), Source: VDH0274-04

2080-12097 4Cyanide (total) 0.250.24 mg/L0.0050 ND 08/21/200.0022 www.BSKAssociates.com

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

ADH1717 FINAL 08282020 1652

Certificate of Analysis

Notes:

· The Chain of Custody document and Sample Integrity Sheet are part of the analytical report.

· Any remaining sample(s) for testing will be disposed of according to BSK's sample retention policy unless other arrangements are made in advance.

· All positive results for EPA Methods 504.1 and 524.2 require the analysis of a Field Reagent Blank (FRB) to confirm that the results are not a contamination error from field sampling steps. If Field Reagent Blanks were not submitted with the samples, this method requirement has not been performed.

· Samples collected by BSK Analytical Laboratories were collected in accordance with the BSK Sampling and Collection Standard Operating

Procedures.

· J-value is equivalent to DNQ (Detected, not quantified) which is a trace value. A trace value is an analyte detected between the MDL and the laboratory reporting limit. This result is of an unknown data quality and is only qualitative (estimated). Baseline noise, calibration curve extrapolation below the lowest calibrator, method blank detections, and integration artifacts can all produce apparent DNQ values, which contribute to the un-reliability of these values.

· (1) - Residual chlorine and pH analysis have a 15 minute holding time for both drinking and waste water samples as defined by the EPA and

40 CFR 136. Waste water and ground water (monitoring well) samples must be field filtered to meet the 15 minute holding time for dissolved metals.

· Field tests are outside the scope of laboratory accreditation and there is no certification available for field testing.

· Summations of analytes (i.e. Total Trihalomethanes) may appear to add individual amounts incorrectly, due to rounding of analyte values occurring before or after the total value is calculated, as well as rounding of the total value.

· RL Multiplier is the factor used to adjust the reporting limit (RL) due to variations in sample preparation procedures and dilutions required for matrix interferences.

· Due to the subjective nature of the Threshold Odor Method , all characterizations of the detected odor are the opinion of the panel of analysts. The characterizations can be found in Standard Methods 2170B Figure 2170:1.

· The MCLs provided in this report (if applicable) represent the primary MCLs for that analyte.

· (2) - Formerly known as Bis(2-Chloroisopropyl) ether.

Definitions mg/L: Milligrams/Liter (ppm) mg/Kg: Milligrams/Kilogram (ppm) µg/L: Micrograms/Liter (ppb) µg/Kg: Micrograms/Kilogram (ppb)

%: Percent

NR: Non-Reportable

MDL: Method Detection Limit

RL: Reporting Limit: DL x Dilution

ND: None Detected below MRL/MDL pCi/L: PicoCuries per Liter

RL Mult: RL Multiplier

MCL: Maximum Contaminant Limit

MDA95: Min. Detected Activity

MPN: Most Probable Number

CFU: Colony Forming Unit

Absent: Less than 1 CFU/100mLs

Present: 1 or more CFU/100mLs

U: The analyte was not detected at or above the reported sample quantitation limit.

BSK is not accredited under the NELAP program for the following parameters: **NA**

Please see the individual Subcontract Lab's report for applicable certifications.

www.BSKAssociates.com

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

ADH1717 FINAL 08282020 1652

Certificate of Analysis

Certifications: Please refer to our website for a copy of our Accredited Fields of Testing under each certification.

Fresno

1180State of California - ELAP 4021State of Hawaii

9254479Los Angeles CSD 4021-014NELAP certified

CA000792020-2State of Nevada 4021-014State of Oregon - NELAP

CA00079EPA - UCMR4 C997-20bState of Washington

Sacramento

2435State of California - ELAP

San Bernardino

2993State of California - ELAP 9254478Los Angeles CSD

4119-005NELAP certified 4119-005State of Oregon - NELAP

Vancouver

WA100008-012NELAP certified WA100008-013State of Oregon - NELAP

C824-19State of Washington www.BSKAssociates.com

The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

ADH1717 FINAL 08282020 1652