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Perchlorate Background Information and Standards

Documents about perchlorate in drinking water
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Perchlorate - Final Standards

Drinking Water Standard for Perchlorate, Open PDF file, 230.74 KB (English, PDF 230.74 KB)
Final MCP Numerical Standards for Perchlorate, Open PDF file, 18.63 KB (English, PDF 18.63 KB)
Perchlorate Sampling Requirements for Public Water Systems, Open PDF file, 95.39 KB (English, PDF 95.39 KB)

Perchlorate - Sites, Sources & Monitoring Data

The Occurrence and Sources of Perchlorate in Massachusetts, Open PDF file, 2.71 MB (English, PDF 2.71 MB)
Perchlorate Report, Open PDF file, 24.4 KB (English, PDF 24.4 KB)
Report: Perchlorate Contamination at a Fireworks Display in Dartmouth, Massachusetts, Open PDF file, 1.43 MB (English, PDF 1.43 MB)
Report Appendices: Perchlorate Contamination at a Fireworks Display in Dartmouth, Massachusetts, Open PDF file, 175.52 KB (English, PDF 175.52 KB)
View Perchlorate Monitoring Results on EEA Online Data Portal

Background information about perchlorate in drinking water

ORS US Senate Testimony on Perchlorate, Open PDF file, 61.12 KB (English, PDF 61.12 KB)
US Senate Followup Questions on Perchlorate, Open PDF file, 31.51 KB (English, PDF 31.51 KB)
MassDEP Response to EPA's Preliminary Regulatory Determination on Perchlorate, Open PDF file, 77.04 KB (English, PDF 77.04 KB)
ORS Comments on Inspector General's Perchlorate Analysis, Open PDF file, 130.62 KB (English, PDF 130.62 KB)
Federal Register Summary of Perchlorate Effects
MassDEP Comments to EPA on Perchlorate, Open PDF file, 34.6 KB (English, PDF 34.6 KB)
Fireworks Best Environmental Management Practices, Open DOC file, 31 KB (English, DOC 31 KB)
Letter to Certified Labs Regarding Perchlorate Testing, Open PDF file, 36.57 KB (English, PDF 36.57 KB)
Perchlorate Toxicological Profile & Health Assessment - June 2006, Open PDF file, 407.28 KB (English, PDF 407.28 KB)
Addendum to the Perchlorate Toxicological Profile & Health Assessment - June 2006, Open PDF file, 156.6 KB (English, PDF 156.6 KB)
Letter to Public Water Suppliers Concerning New Perchlorate Regulations, Open DOC file, 28 KB (English, DOC 28 KB)
Perchlorate Fact Sheet for Public Water Suppliers, Open DOCX file, 20.38 KB (English, DOCX 20.38 KB)
Perchlorate Frequently Asked Questions
Response to Comments on the Public Hearing Draft of Perchlorate Regulations, Open PDF file, 169.81 KB (English, PDF 169.81 KB)
Potential Environmental Contamination from the Use of Perchlorate-Containing Explosive Products, Open PDF file, 284.38 KB (English, PDF 284.38 KB)
Environmental Health Perspectives: Basis of the Massachusetts Reference Dose and Drinking Water Standard for Perchlorate

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