MassDEP-Certified Perchlorate Laboratories

Effective October 5, 2007, MassDEP offers certification for the analysis of perchlorate in potable water. Laboratories that MassDEP had approved for perchlorate analysis are now certified and listed in the online searchable database.
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Laboratories approved for analysis of perchlorate in potable drinking water under the EPA Unregulated Contaminant Monitoring Rule (UCMR)

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Summary Report of the first Low-Level Perchlorate Proficiency Test Study conducted by the MassDEP

Assesses the analytical performance of the 7 MassDEP approved laboratories and 10 additional laboratories in the analysis of perchlorate in state water supplies.
MS Word 274 KB | PDF 235 KB

Letter to certified laboratories regarding perchlorate testing - February 18, 2004

Approval process and quality control requirements for laboratories analyzing perchlorate in public water supplies under the MassDEP drinking water program's emergency perchlorate regulations.
MS Word  47 KB  | PDF  37 KB

Perchlorate information from the Drinking Water Program

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