1. Perchlorate: Environmental Problems and Solutions 2007
2. Drinking Water Standards and Regulations - Perchlorate https://www.epa.gov/dwstandardsregulations/perchlorate 2016
3. Potential Environmental Contamination from the Use of Perchlorate-Containing Explosive Products 2008 http://www.mass.gov/eea/agencies/massdep/cleanup/regulations/contamination-perchlorate-containing-explosive-products.html
4. Current Regulatory Limit - Perchlorate 2004 http://www.mass.gov/eea/agencies/massdep/water/drinking/standards/perchlorate.html
5. Public Health Goal for Perchlorate in Drinking Water 2012 http://oehha.ca.gov/media/downloads/water/public-health-goal/120612perchloratedraft.pdf