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USGS Water-Quality Information

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 [Photo: USGS scientist collects water-quality samples.]

USGS scientists deploy SPMD and POCIS samplers to collect waterborne contaminants in Manoa Stream on Oahu, Hawaii.


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Water Quality Data

Today's Water Conditions

Get continuous real-time water-quality measurements from Water-Quality Watch maps.
[Sample Water-Quality Watch Map]

Water Quality Portal (WQP)

Get current and historical USGS and EPA water-quality data at the WQP.


Get stream ecosystem aquatic bioassessment data from BioData.

For More Data

View a complete list of USGS water-quality data resources.

USGS in Your Area

USGS Water Science Centers are located in each state.

 [Map: There is a USGS Water Science Center office in each State.] Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii and Pacific Islands New York Vermont New Hampshire Maine Massachusetts South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.

Selected Water-Quality Publications

National Field Manual for the Collection of Water-Quality Data

National field manual for the collection of water-quality data: USGS Techniques of Water-Resources Investigations, book 9, chaps. A1-A10

Selected USGS Water-Quality Publications

Fact Sheets (FS)

A Primer on Water Quality, USGS Fact Sheet 027-01.

NASQAN--A Program to Monitor the Water Quality of the Nation's Large Rivers, Fact Sheet FS-055-97

Techniques and Methods (TM) & Techniques of Water-Resources Investigations (TWRI)

Procedures for Developing Models To Predict Exceedances of Recreational Water-Quality Standards at Coastal Beaches, U.S. Geological Survey Techniques and Methods book 6, chap. B5.

Guidelines and Standard Procedures for Continuous Water-Quality Monitors: Station Operation, Record Computation, and Data Reporting, U.S. Geological Survey Techniques and Methods 1-D3.

Scientific Investigation Reports (SIR) & Water-Resources Investigations Reports (WRIR)

Guidelines for Design and Sampling for Cyanobacterial Toxin and Taste-and-Odor Studies in Lakes and Reservoirs, U.S. Geological Survey Scientific Investigations Report 2008-5038.

StreamVOC--A Deterministic Source-Apportionment Model to Estimate Volatile Organic Compound Concentrations in Rivers and Streams, U.S. Geological Survey Scientific Investigations Report 2006-5110.

Comparability of Suspended-Sediment Concentration and Total Suspended Solids Data, Water-Resources Investigations Report WRIR 00-4191 (pdf=1Mb) and Adjustment of Total Suspended Solids Data for Use in Sediment Studies (pdf=2Mb).

A Retrospective Analysis on the Occurrence of Arsenic in Ground-Water Resources of the United States and Limitations in Drinking-Water-Supply Characterizations, Water-Resources Investigations Report 99-4279.

External Quality-Assurance Results for the National Atmospheric Deposition Program/National Trends Network, 1995-96, Water-Resources Investigations Report 99-4072.

USGS Guidelines and Standard Procedures for Studies of Ground-Water Quality: Selection and Installation of Wells, and Supporting Documentation Water-Resources Investigations Report 96-4233

The Computer Program Estimate Trend (ESTREND), A System for the Detection of Trends in Water-Quality Data, Water-Resources Investigations Report 91-4040

Open-File Reports (OFR)

A Guide to the Proper Selection and Use of Federally Approved Sediment and Water-Quality Samplers, U.S. Geological Survey Open-File Report 2005-1087.

Selected Laboratory Evaluations of the Whole-Water Sample-Splitting Capabilities of a Prototype Fourteen-Liter Teflon® Churn Splitter, Open-File Report 01-386

New Reporting Procedures Based on Long-Term Method Detection Levels and Some Considerations for Interpretation of Water-Quality Data Provided by the U.S. Geological Survey National Water Quality Laboratory, Open-File Report 99-193.

USGS Protocol for the Collection of Processing of Surface-Water Samples for the Subsequent Determination of Inorganic Constituents in Filtered Water, Open-File Report 94-539

Water Supply Papers (WSP)

Study and Interpretation of the Chemical Characteristics of Natural Water, Water Supply Paper 2254

Professional Paper (PP)

Transport, Behavior and Fate of Volatile Organic Compounds in Streams, Professional Paper 1589

Abstracts, Articles, and Other Publications

More Than Obvious: Better Methods for Interpreting Nondetect Data: Helsel, Dennis R., 2005, Environmental Science and Technology, A-Pages, v. 39, no. 20, p. 419A-423A.

Comparison of Seven Protocols to Identify Fecal Contamination Sources Using Escherichia coli (pdf), USGS-authored article in Environmental Science and Technology.

A Comparison of Load Estimates Using Total Suspended Solids and Suspended-Sediment Concentration Data, in American Society of Civil Engineering's Proceeding of the World Water and Environmental Resources Congress, May 20-24, 2001 (pdf = 67 Kb)

The proceedings of the technical meeting, "Animal Feeding Operations: Effects on Hydrologic Resources and the Environment," held in Fort Collins, CO, Aug. 30 - Sept. 1, 1999, are online as USGS Open-File Report 00-204 on the Proceedings page of the AFO Web site.

Report on hypoxia in the Gulf of Mexico: Flux and Sources of Nutrients in the Mississippi-Atchafalaya River Basin (see Topic 3).

The Solubility of Nitrogen, Oxygen and Argon in Water and Seawater, Weiss, 1970 (pdf).

Additional USGS Water-Quality-Related Publications

Publications on Techniques of Water-Resources Investigations

Ground Water Atlas of the United States

National Water-Quality Assessment Program Publications

Ohio Water Science Center's Microbiology Program

Water-Quality-Related Publications from other Sources

The Bromide Tracer reading list

The Rhodamine WT Tracer reading list

National Irrigation Water Quality Program - Bibliography of Published Studies

The National Park Service Environmental Contaminants Encyclopedia

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Page Last Modified: Wednesday, 28-Dec-2016 18:44:05 EST