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Lead, Aquatic Life | Water Quality Criteria | US EPA05-19-2009

Following are the references available to the Agency for developing or revising aquatic life criteria for Lead... The use of life-tables for evaluating the chronic toxicity of pollutants to Mysidopsis bahia ...

http://www.epa.gov/waterscience/criteria/lead/pbref.html (HTML)

Final Water Quality Guidance for the Great Lakes System05-07-2008

Similar ranges and disparities exist for chronic aquatic life criteria, and for water quality criteria to protect human health ... Specifically, the final Guidance specifies numeric criteria for selected pollutants to protect aquatic life, wildlife and human health within the Great Lakes System and provides methodologies to derive numeric criteria for additional pollutants discharged to these waters ...

http://www.epa.gov/owow/tmdl/1995mar23fedreg.html (HTML)

WebTrends(tm) Summary Report for NCERQA03-20-1998

The number of hits for the home page is the number of actual successful hits for the HTML document that is your home page ...

http://www.epa.gov/ncer/stats/ncer/ncsumfeb98.htm (HTML)

WebTrends(tm) Summary Report for NCERQA03-09-1998

The number of hits for the home page is the number of actual successful hits for the HTML document that is your home page ...

http://www.epa.gov/ncer/stats/ncer/ncsjan98.htm (HTML)

Contaminated Sediments | Great Lakes | US EPA02-11-2009

As discussed below, the potential for penetration into the cap by burrowing animals is far greater for unconsolidated, fine grained sediments than it is for sandy sediments with little organic matter ...

http://www.epa.gov/greatlakes/sediment/iscmain/three.html (HTML)