Please visit these other sources of information about federal and state regulatory programs and policies.
U.S. EPA, Region 1 http://www.epa.gov/region1/
Superfund http://www.epa.gov/superfund/
Federal Surface Water Discharge (NPDES)
http://cfpub.epa.gov/npdes/
Brownfields http://cfpub.epa.gov/npdes/
Water & Wetlands http://www.mass.gov/dep/water/
Solid Waste (Landfills) http://www.mass.gov/dep/recycle/index.htm
Air Quality http://www.mass.gov/dep/air/index.htm
Hazardous Waste http://www.mass.gov/dep/toxics/index.htm
Connecticut Department of Environmental Protection
http://dep.state.ct.us/
Maine Department of Environmental Protection http://www.state.me.us/dep/index.shtml
New Hampshire Department of Environmental Services http://www.des.state.nh.us/
Rhode Island Department of Environmental Management http://www.state.ri.us/dem/
Vermont Department of Environmental Conservation http://www.anr.state.vt.us/dec/dec.htm
MA DEP Office of Research & Standards Documents http://www.mass.gov/dep/toxics/chemical.htm
MA DEP Risk Assessment Guidance and other risk documents http://www.mass.gov/dep/cleanup/laws/orspub03.htm
Agency for Toxic Substances and Disease Registry http://www.atsdr.cdc.gov/
TOXNET http://www.toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?HSDB