The CLERC Lab
The CLERC Lab is the only accredited microbiology lab in Lake County. The lab is setup to report results to the Division of Drinking Water when required.
CLERC operates a water quality testing laboratory at the Carnegie Library in Lakeport, CA. The CLERC Lab offers the service of analyzing drinking water and wastewater for total coliform and E. coli. The CLERC Lab is accredited through the California Environmental Laboratory Accreditation Program (ELAP), Certificate No. 3056, for the following tests:
Our Lab Services
Receiving samples by appointment only
If you are interested in having your water tested at the CLERC Lab, please contact
the Lab Manager at:
707-530-6251 or email lab@clerc.co
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Water Quality
Total coliform P/A - E. coli P/A
Total coliform enumeration - E. coli enumerationWaste Water
Total coliform enumeration - E. coli enumeration
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Download the Chain of Custody PDF form
Download the Chain of Custody Excel (.xls) file
Download the Instructions for Completing the Chain of Custody Form -
Download Sampling Instructions
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CLERC is a 501(c)3 nonprofit organization - Tax Identification Number (TIN): 47-1489147
CLERC Insurance provisions include comprehensive liability and Errors and Omissions coverage.
CLERC is registered with the U.S. General Services Administration’s SAM (System for Award Management) system, ID # 8GTL9
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