3__Attachment__2_-_Water_Sampling_Results.pdf
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- CA-SAN LUIS NWR-FIRE SYSTEM REHAB
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- 140FF027Q0035
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About this file
These are laboratory analytical reports from Alpha Analytical Laboratories documenting water quality testing results for U.S. Fish and Wildlife Service (USFWS) facilities. The first report covers investigative sampling from the San Luis National Wildlife Refuge Complex Visitor center in Los Banos, California (Work Order 25A4623), with a water sample collected on January 29, 2025, and received by the laboratory on January 30, 2025. The analysis was completed with a 10-day turnaround time and includes general mineral and physical parameters such as calcium (97 mg/L), total alkalinity as CaCO3 (140 mg/L), specific conductance (3500 umhos/cm), total dissolved solids (2100 mg/L), and pH (8.11). The Langelier Index values indicate water characteristics at different temperatures. All results are compared against Maximum Contaminant Levels (MCL) and Tiered Maximum Contaminant (TMC) standards established by California's Division of Drinking Water.
The second report documents water quality testing for the Merced National Wildlife Refuge Quarters/Shop in Merced, California (Work Order 25G4071), with a sample collected on July 23, 2025, and received on the same date. This analysis was completed with a 5-day turnaround time and includes microbiological parameters using APHA Standard Methods, specifically testing for total coliforms and E. coli. The results show total coliforms at 2.0 MPN/100mL and E. coli as not detected (ND). Both reports are signed by David S. Pingatore, Project Manager at Alpha Analytical Laboratories, and addressed to Scott Crist at the respective USFWS facilities. The reports include chain of custody documentation and must be reproduced in their entirety per laboratory protocol.
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USFWS San Luis NWR Complex Visitor
RE: Water Quality 10 day TAT
Los Banos, CA 93635
7376 S. Wolfsen Rd
Enclosed are the results of analyses for samples received by the laboratory on 01/30/25 08:10. If you have any questions concerning this report, please feel free to contact me.
Sincerely, 25 February 2025
Attn: Scott Crist
Work Order: 25A4623
Project Manager
David S. Pingatore
Date Sampled
Analytical Report for Samples
Date ReceivedMatrixLaboratory IDSample ID
USFWS San Luis NWR Complex Visitor
7376 S. Wolfsen Rd
Los Banos CA, 93635 02/25/25 12:20
Reported:
Water Quality 10 day TAT
Investigative Sampling
Scott Crist
Project:
Project #:
Project Mgr:
Well 01 25A4623-01 Water 01/29/25 11:30 01/30/25 08:10
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.
Sample Name:
Laboratory ID:
System Name:
PS Code:
Sampled by:
Employed by:
Report Date:
Sample Date:
Sample Received:
Well 01
25A4623-01
01/29/25 11:30
J. Ward
02/25/25 12:20
01/30/25 08:10
Data submitted to DDW via EDT
USFWS San Luis NWR Complex Visitor
Parameter Result MCL DLR Units Storet Test Method ELAP #RL
Temperature, deg F 66.6 Field° 1551*32.0
Langelier Index @ 60C 718131.25 LSINU. 1551*-10.00
General Mineral and Physical
Parameter Result MCL DLR Units Storet Test Method ELAP #RL
Calcium 0091697 EPA 200.7mg/L 15511.0
Carbonate 00445<5.0 SM2320Bmg/L 15515.0
Total Alkalinity as CaCO3 00410140 SM2320Bmg/L 15515.0
Hydroxide Alkalinity as CaCO3 71830<5.0 SM2320Bmg/L 15515.0
Carbonate Alkalinity as CaCO3 00445<5.0 SM2320Bmg/L 15515.0
Bicarbonate Alkalinity as CaCO3 00440140 SM2320Bmg/L 15515.0
Specific Conductance (EC) 00095TMC3500 SM2510Bumhos/cm 155120
Total Dissolved Solids 70300TMC2100 SM2540Cmg/L 155110 pH 004038.11 SM4500-H+ BpH Units 15511.68
Inorganic: Additional Analyses
Parameter Result MCL DLR Units Storet Test Method ELAP #RL
Langelier Index @ Source Temp 718140.51 LSINU. 1551*-10.00
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.
Notes and Definitions
TMC Tiered Maximum Contaminant and/or Action Levels: Sulfate and Chloride 250-500-600 mg/L, Specific
Conductance 900-1600-2200 umho/cm, TDS 500-1000-1500 mg/L.
* ELAP does not offer accreditation in this matrix for the requested analyte /method combination.
MCL
RL
DLR Detection limit for purposes of reporting set by the DDW
Laboratory reporting limit
Maximum contaminant level set by California
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.
Merced NWR Refuge Quarters/Shop
RE: Water Quality 5 day TAT
Merced, CA 95341
7430 W. Sandy Mush Rd
Enclosed are the results of analyses for samples received by the laboratory on 07/23/25 16:20. If you have any questions concerning this report, please feel free to contact me.
Sincerely, 30 July 2025
Attn: Scott Crist
Work Order: 25G4071
Project Manager
David S. Pingatore
7430 W. Sandy Mush Rd
07/30/25 13:13Merced, CA 95341 Non RegulatoryRepeats
Water Quality 5 day TAT Reported:
Project Manager:
Project Number:
Project:
Scott Crist
Sample ID Laboratory ID Matrix Date Sampled Date Received
ANALYTICAL REPORT FOR SAMPLES
Well 25G4071-01 Water 07/23/25 10:08 07/23/25 16:20
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.
07/30/25 13:13Merced, CA 95341 Non RegulatoryRepeats
Water Quality 5 day TAT Reported:
Project Manager:
Project Number:
Project:
Scott Crist
Result NoteDilution Batch Prepared Analyzed MethodReporting Limit ELAP#Units
Sample Type: Water Sampled: 07/23/25 10:08Well (25G4071-01)
Microbiological Parameters by APHA Standard Methods
Total Coliforms 2.0 1.0 MPN/100mL 1 AG54975 07/23/25 17:45 07/24/25 18:10 SM9223B2728
E. Coli ND 1.0 MPN/100mL 1 AG54975 07/23/25 17:45 07/24/25 18:10 SM9223B2728
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.
07/30/25 13:13Merced, CA 95341 Non RegulatoryRepeats
Water Quality 5 day TAT Reported:
Project Manager:
Project Number:
Project:
Scott Crist
Notes and Definitions
RPD Relative Percent Difference dry Sample results reported on a dry weight basis
ND Analyte NOT DETECTED at or above the reporting limit
* ELAP does not offer accreditation in this matrix for the requested analyte/method combination.
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.
| 25A4623_3 AlphaDW 02 25 25 1220.pdf |
| 25G4071_3 Alpha 07 30 25 1313.pdf |
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