Multiple Sources of Perchlorate in the Environment (PDF)

This article details efforts to identify sources of the contaminant in the environment the majority of which appear to be from non-Defense related discharges.
 

DoD 2009 Overview of Perchlorate Information, Issues and Activities (PDF)

Findings from Perchlorate Sampling - Article from EM Journal (PDF)

Article co-authored by California Regulators and DoD personnel summarizes the process and  findings of DoD-CA perchlorate prioritization effort and national efforts to find out if DoD a major contributor to perchlorate found in drinking water supplies.
 

EPA Health Advisory for Perchlorate - Jan 2009 (PDF)

EPA report on new Health Advisory Goal for perchlorate issued Jan 8, 2009
 

EPA Perchlorate Policy 2006 (PDF)

EPA Perchlorate guidance. This guidance replaces previous Office of Solid Waste and Emergency Response (OSWER) guidance and the accompanying questions and answers (referenced below) regarding perchlorate under the National Contingency Plan, 40 CFR Part 300.
 

Mass DEP perchlorate- 310CMR22-07282006 (PDF)

Massachusetts was the first state in the nation to promulgate drinking water and waste site cleanup standards for the chemical perchlorate, setting the standard at 2 parts per billion (ppb).
 

Mass DEP Promulgates Perchlorate Standards (PDF)

Massachusetts was the first state in the nation to promulgate drinking water and waste site cleanup standards for the chemical perchlorate, setting the standard at 2 parts per billion (ppb).
 

DoD Perchlorate Handbook (PDF)

DoD Perchlorate Handbook Aug 2007
 

California Code - Perchlorate (DOC)

The state of California has adopted an enforceable drinking water standards for perchlorate.  The MCL of 6 ug/L will be effective October 18, 2007.  The rule is at California Code of Regulations, Title 22, Chapter 15.
 

UPDATED INFORMATIVE DIGEST (DOC)

New Calif State Drinking Water Standard for Perchlorate
 

Statement of Reason (DOC)

New Calif State Drinking Water Standard for Perchlorate
 

ATSDR Toxicological Profile for Perchlorates, September 2008 (PDF)

The Agency for Toxic Substances and Disease Registry (ATSDR) has released a final perchlorate toxicological profile.  The 299 page profile discusses health effects public health risk of perchorate exposure.  The profile includes a Minimal Risk Level for oral exposures with a chronic reference dose (RfD) of 0.0007 mg/kg/day for the chronic oral MRL for the perchlorate anion.  This value is based on a 2005 National Academy of Sciences report and is the value that EPA has also adopted.  The results from newer studies did not change ATSDRs bottom-line recommendation.
 

General Information

DoD 2009 Perchlorate Response Policy (PDF)

Massachusetts Says DoD is Not Source of Perchlorate Contamination of Water Supplies (PDF)

Cover Letter to 2005 Report to Congress (PDF)

DoD 2005 Report to Congress on perchlorate in the southwest. DoD cover letter
 

Perchlorate Southwest (PDF)

DoD 2005 Report to Congress on perchlorate in the southwest