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Bioassessment of Water Resources
USDA. NAL. Water Quality Information Center.
Offers a dynamic search of NAL catalog (AGRICOLA) article citations on bioassesment of water resources, from 2000 to the present. Try a book citation search from 2000 to the present. Earlier versions cover 1994-1999 (articles), 1994-1999 (books), 1990-1995 and 1985-1993.

 Researching Water Quality
USDA. NAL. Water Quality Information Center.
A bibliography of 149 citations from the NAL catalog (AGRICOLA) covering 1989-1993.
 CSREES National Water Quality Program
USDA. Cooperative State Research, Education, and Extension Service.
"Applies knowledge to improve the quality of water resources throughout the United States and its territories, particularly in agriculturally managed watersheds."
Water drop Phosphorus Index: A Phosphorus Assessment Tool
USDA. Natural Resources Conservation Service.
"An assessment tool to be used by planners and landusers to assess the risk that exists for phosphorus leaving the landform site and travelling toward a water body. It also can be used to identify the critical parameters of soil, topography, and management that most influence the movement."
 Agricultural Phosphorus and Eutrophication
(PDF | 432 KB)

USDA. Agricultural Research Service.
Describes source and transport management and targeting remediation methods to reduce the loss of phosphorus in agricultural runoff.
Variable-flow irrigation sprinkler head Agricultural Chemicals
DOI. USGS. Toxic Substances Hydrology Program.
Delivers research data and reports "characterizing the processes that affect dispersal of chemicals in the atmosphere, ground water, and surface water; identifying persistent degradation products; and developing methods to measure these compounds in water samples at environmentally relevant concentrations."
 USGS Water Quality Information
DOI. United States Geological Survey.
Provides links to publications, data, techniques, and USGS laboratories and programs supporting research in the quality of surface water and groundwater.
 National Water-Quality Assessment Program
DOI. United States Geological Survey.
The NAWQA program "develops long-term consistent and comparable information on streams, ground water, and aquatic ecosystems to support sound management and policy decisions."
Gulf of Mexico sunset Nutrients in the Mississippi River
Basin (MRB) and Hypoxia in the Gulf of Mexico

DOI. United States Geological Survey.
"Provides a range of scientific information to support management decision-making aimed at reducing excess nutrients in the Mississippi River Basin and hypoxia in the Gulf of Mexico."
 Mississippi River Basin and Gulf of Mexico Hypoxia
EPA. Mississippi River/Gulf of Mexico Watershed Nutrient
Task Force.

Inter-agency site outlines the effects of excess nutrients, from sub-basin and main-stem watersheds to the gulf.
Locate Your Watershed logo

Locate Your Watershed
EPA. Office of Wetlands, Oceans, and Watersheds.
Offers four ways to find geographic locations of watersheds. For each watershed, furnishes watershed profiles which include watershed health assessments, restoration efforts and monitoring data.

 EPA Microbiology
Environmental Protection Agency.
Provides microbiology-related information developed or managed by the Agency including EPA test methods for bacteria, viruses, and protozoans.
 Water Quality Standards
EPA. Office of Water.
"Defining the goals for a waterbody by designating its uses, setting criteria to protect those uses, and establishing provisions to protect waterbodies from pollutants."
 Safe Drinking Water Information System:
Query Form

EPA. Envirofacts Data Warehouse.
Contains information about public water systems and their violations of EPA's drinking water regulations, as reported to EPA by the states. This query will help you to find your drinking water supplier and view its violations and enforcement history since 1993.
Last Modified: Tuesday, 03-Jun-2008 11:09:07 EDT

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See Also
    Constructed Wetlands and Other Approaches to Protecting Water Quality
    Environmental Protection Agency: Low Impact Development (LID)
    Environmental Protection Agency: Office of Water
    Environmental Protection Agency Publications Source
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