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Indiana State Department of Health

Laboratories > Drinking Water Laboratory Certification Drinking Water Laboratory Certification

The ISDH Laboratories are responsible for certifying laboratories under the Safe Drinking Water Act.  This includes conducting on-site evaluations plus evaluating proficiency test samples.  We maintain lists of certified microbiology and chemistry labs. For more information, please contact the certification officers listed in the contacts section of this document.

Certified Microbiology Laboratories

Certified Chemistry Laboratories

Certification Program Documents

The Indiana Drinking Water Laboratory Certification Program is based on the EPA Manual for the Certification of Laboratories Analyzing Drinking Water; Criteria and Procedures Quality Assurance, 5th Edition (EPA 815-R-05-004), January 2005 (EPA Manual). The EPA Laboratory Certification Manual information site is at:

The EPA Laboratory Certification Manual describes the minimum requirements for the Drinking Water Laboratory Certification Program implementation procedures, laboratory procedures, and technical criteria laboratories must meet to analyze drinking water compliance samples. Chapter IV of the EPA manual lists the Critical Element for Chemistry and Chapter V of the EPA manual lists the Critical Elements for Microbiology. The following are links to the EPA Manual and Supplements:

ISDH Certification Program Application

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