Water Quality


Mayfly larvae 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.

U. S. Geological Survey Frequently Asked Questions

U. S. Geological Survey.

Answers to frequently asked questions on water quality and contamination and pollution.

Water drop Fate and Transport of Nutrients: Phosphorus

USDA. Natural Resource Conservation Service.

Discusses the soil phosphorus cycle, transport processes, the effect of phosphorus sources on fate and transport, impacts of phosphorus on the environment and use-efficiency to decrease negative impacts.

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.

Advisory Committee on Water Information

DOI. USGS. Water Information Coordination Program.

Lead agency tasked to "improve water information for decision making about natural resources management and environmental protection."

Variable-flow irrigation sprinkler head Agricultural Chemicals

DOI. United States Geological Survey. 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.

NIFA National Water Program

USDA. National Institute of Food and Agriculture.

A cooperative national program to improve the quality of the nation's water resources. The program is a partnership of the U.S. Department of Agriculture and land grant colleges and universities.

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."

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 Force.

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

Locate Your Watershed logo Surf Your Watershed

Environmental Protection Agency.

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.

Adopt Your Watershed

Environmental Protection Agency.

Part of the Environmental Protection Agency's Watersheds site where you can find the Catalog of Federal Funding Sources for Watershed Protection and Watershed Academy.

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.

Nutrient Pollution Policy and Data

Environmental Protection Agency.

Reports, tools, data and more on nutrients (nitrogen and phosphorus) in water.

Fish kill due to hypoxia Gulf of Mexico Hypoxia Watch

DOC. NOAA. National Coastal Data Development Center.

"Develops new near-real time map products using shipboard measurements of bottom dissolved oxygen in the North-central Gulf of Mexico."

Stressors: Hypoxia and Nutrient Pollution

DOC. NOAA. Center for Sponsored Coastal Ocean Research.

Building tools to enable coastal resource managers to make scientifically-based decisions to help mitigate the impact of hypoxia and nutrient pollution on aquatic ecosystems.

Hypoxia in the Gulf of Mexico: Progress Towards the Completion of an Integrated Assessment

DOC. NOAA. National Centers for Coastal Ocean Science.

Describes the assessment process and provides links to public comments and reports generated by the assessment.

Role of Nutrient Loading and Eutrophication in Estuarine Ecology (PDF | 756 KB)

DHHS. NIEHS. Environmental Health Perspectives.

Article from the Oct 2001 issue of Environmental Health Perspectives outlines the process of eutrophication and its consequences in estuarine ecosystems.

National Center for Water Quality Research

Heidelberg College.

Evaluates the success of nonpoint control programs, and studies land use and water quality trends, the hydrology of tile-drained agricultural lands and a variety of inorganic constituents, pesticides, volatile organic compounds, and metals.

National Drinking Water Clearinghouse logo National Drinking Water Clearinghouse

West Virginia University. National Environmental Services Center.

Provides low-cost technical assistance, products, and information services for small community drinking water systems.

National Onsige Demonstration Program logo National Onsite Demonstration Program

West Virginia University. National Environmental Services Center.

"Encourages the use of alternative, onsite and wastewater treatment technologies to protect public health, ensure water quality, and sustain the environment in small and rural communities."

National Small Flows Clearinghouse

West Virginia University. National Environmental Services Center.

Assists "small communities and individuals solve their wastewater problems to protect public health and the environment."

Global Environment Monitoring System

UNEP. Global Environment Monitoring System.

"The United Nations Global Environment Monitoring System (GEMS)
Water Programme is dedicated to providing environmental water quality
data and information of the highest integrity, accessibility and
interoperability. These data are used in water assessments and capacity
building initiatives around the world.