Laboratory_Report_Example.pdf

126 KB Posted

Attached to
SCWA - Water Well Testing
Solicitation number
2025-RFB-0025
Issued by
Sacramento County, San Francisco City, California

About this file

Written by GovTribe AI ·

This document is a Certificate of Analysis from BSK Associates Laboratory in Fresno, detailing water quality testing results for multiple groundwater wells associated with the Arden Park Vista Well Testing project. The laboratory analyzed water samples from eight different wells on 11/14/2024, including Tolenas W-2, Fitch W-4, Las Cruces W-5, Los Alamos W-7, Stewart W-8, Latham W-9, Northrop W-22, and La Sierra Park W-35. The samples were collected by Sean Johnson and underwent general chemistry, metals, and organics testing using various EPA-approved methods.

The analysis focused on detecting levels of specific contaminants including fluoride, uranium, conductivity, nitrate, nitrite, hexavalent chromium, perchlorate, and 1,2,3-Trichloropropane. Most samples showed non-detectable (ND) levels for many analytes, with some wells like Fitch W-4 showing 1.3 ug/L of uranium and Stewart W-8 having 3.4 mg/L of nitrate as N. The testing appears to be part of a comprehensive groundwater monitoring program, likely related to the Sacramento County Water Agency's water quality compliance requirements, with results compared against primary and secondary Maximum Contaminant Levels (MCLs) to ensure safe drinking water standards are met.

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Certificate of Analysis

SHK0326

Arden Park Vista Well Testing

Arden Park Vista Well Testing

Sample Description: Tolenas W-2 // CA3410002_001_001

Sample ID: SHK0326-01 11/14/2024 - 10:18

Sampled By:

Grab

Sean Johnson Ground Water

Sample Date - Time:

Matrix:

Sample Type:

BSK Associates Laboratory Fresno

General Chemistry

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

Fluoride 11/16/24 11/16/24AHK1028ND 1 20.10 mg/LEPA 300.0

SHK0326 FINAL 01082025 1538

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.

TY

PIC

AL

Arden Park Vista Well Testing

Arden Park Vista Well Testing

Sample Description: Fitch W-4 // CA3410002_003_003

Sample ID: SHK0326-02 11/14/2024 - 12:15

Sampled By:

Grab

Sean Johnson Ground Water

Sample Date - Time:

Matrix:

Sample Type:

BSK Associates Laboratory Fresno

General Chemistry

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

Fluoride 11/16/24 11/16/24AHK1028ND 1 20.10 mg/LEPA 300.0

Metals

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

Uranium 11/20/24 11/21/24AHK13511.3 1 301.0 ug/LEPA 200.8

Uranium, Radiological 0.89 200.67 pCi/L

SHK0326 FINAL 01082025 1538

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.

TY

Arden Park Vista Well Testing

Arden Park Vista Well Testing

Sample Description: Las Cruces W-5 // CA3410002_004_004

Sample ID: SHK0326-03 11/14/2024 - 12:51

Sampled By:

Grab

Sean Johnson Ground Water

Sample Date - Time:

Matrix:

Sample Type:

BSK Associates Laboratory Fresno

General Chemistry

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

Conductivity @ 25C 11/22/24 11/22/24AHK1447420 1 9005.0 umhos/cmSM 2510B

Fluoride 11/16/24 11/16/24AHK1028ND 1 20.10 mg/LEPA 300.0

Hexavalent Chromium 11/22/24 11/23/24AHK15164.2 1 100.050 ug/LEPA 218.7

Perchlorate 11/27/24 11/27/24AHK17071.5 1 61.0 ug/LEPA 314.0

Metals

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

Iron 11/20/24 11/26/24AHK1351ND 1 30030 ug/LEPA 200.7

Organics

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

1,2,3-Trichloropropane by GC-MS SIM

1,2,3-Trichloropropane 11/18/24 11/18/24AHK1064ND 1 0.0050.0050 ug/LSRL 524M-TCP

SHK0326 FINAL 01082025 1538

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.

TY

Arden Park Vista Well Testing

Arden Park Vista Well Testing

Sample Description: Los Alamos W-7 // CA3410002_005_005

Sample ID: SHK0326-04 11/14/2024 - 11:25

Sampled By:

Grab

Sean Johnson Ground Water

Sample Date - Time:

Matrix:

Sample Type:

BSK Associates Laboratory Fresno

General Chemistry

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

Fluoride 11/16/24 11/16/24AHK1028ND 1 20.10 mg/LEPA 300.0

Organics

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

1,2,3-Trichloropropane by GC-MS SIM

1,2,3-Trichloropropane 11/18/24 11/18/24AHK1064ND 1 0.0050.0050 ug/LSRL 524M-TCP

SHK0326 FINAL 01082025 1538

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.

TY

Arden Park Vista Well Testing

Arden Park Vista Well Testing

Sample Description: Stewart W-8 // CA3410002_006_006

Sample ID: SHK0326-05 11/14/2024 - 13:38

Sampled By:

Grab

Sean Johnson Ground Water

Sample Date - Time:

Matrix:

Sample Type:

BSK Associates Laboratory Fresno

General Chemistry

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

Conductivity @ 25C 11/22/24 11/22/24AHK1447360 1 9005.0 umhos/cmSM 2510B

Fluoride 11/15/24 11/15/24AHK1017ND 1 20.10 mg/LEPA 300.0

Nitrate as N 11/15/24 17:57 11/15/24AHK10173.4 1 100.23 mg/LEPA 300.0

Nitrite as N 11/15/24 17:57 11/15/24AHK1017ND 1 10.050 mg/LEPA 300.0

Perchlorate 11/27/24 11/27/24AHK1707ND 1 61.0 ug/LEPA 314.0

Metals

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

Uranium 11/20/24 11/21/24AHK13511.5 1 301.0 ug/LEPA 200.8

Uranium, Radiological 1.0 200.67 pCi/L

SHK0326 FINAL 01082025 1538

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.

TY

Arden Park Vista Well Testing

Arden Park Vista Well Testing

Sample Description: Latham W-9 // CA3410002_007_007

Sample ID: SHK0326-06 11/14/2024 - 09:20

Sampled By:

Grab

Sean Johnson Ground Water

Sample Date - Time:

Matrix:

Sample Type:

BSK Associates Laboratory Fresno

General Chemistry

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

Fluoride 11/16/24 11/16/24AHK1028ND 1 20.10 mg/LEPA 300.0

SHK0326 FINAL 01082025 1538

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.

TY

Arden Park Vista Well Testing

Arden Park Vista Well Testing

Sample Description: Northrop W-22 // CA3410002_013_013

Sample ID: SHK0326-07 11/14/2024 - 08:20

Sampled By:

Grab

Sean Johnson Ground Water

Sample Date - Time:

Matrix:

Sample Type:

BSK Associates Laboratory Fresno

General Chemistry

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

Fluoride 11/16/24 11/16/24AHK1028ND 1 20.10 mg/LEPA 300.0

Metals

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

Uranium 11/20/24 11/21/24AHK1351ND 1 301.0 ug/LEPA 200.8

Uranium, Radiological < 0.67 200.67 pCi/L

SHK0326 FINAL 01082025 1538

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.

TY

Arden Park Vista Well Testing

Arden Park Vista Well Testing

Sample Description: La Sierra Park W-35 // CA3410002_014_014

Sample ID: SHK0326-08 11/14/2024 - 11:02

Sampled By:

Grab

Sean Johnson Ground Water

Sample Date - Time:

Matrix:

Sample Type:

BSK Associates Laboratory Fresno

General Chemistry

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

Fluoride 11/16/24 11/16/24AHK1028ND 1 20.10 mg/LEPA 300.0

Metals

ResultAnalyte RL Prepared Analyzed

RL

MultUnitsMethod Batch Qual

1°

MCL

2°

MCL

Uranium 11/20/24 11/21/24AHK1351ND 1 301.0 ug/LEPA 200.8

Uranium, Radiological < 0.67 200.67 pCi/L

SHK0326 FINAL 01082025 1538

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.

TY

Laboratory Report-111424.pdf

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