Drinking Water Laboratory Certification
The IDOH 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 Chemistry/Microbiology 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: https://www.epa.gov/dwlabcert
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:
- Manual for the Certification of Laboratories Analyzing Drinking Water, Fifth Edition (PDF) (209 pp, 4MB) EPA 815-R-05-004, January 2005.
- Supplement 1 to the Fifth Edition of the Manual for the Certification of Laboratories Analyzing Drinking Water (PDF) (9 pp, 59K) EPA 815-F-08-006, June 2008.
- Supplement 2 to the Fifth Edition of the Manual for the Certification of Laboratories Analyzing Drinking Water (PDF) (82 pp, 2.5MB) EPA 815-F-12-006, November 2012.