Gavins Point Dam - Omaha District US Army Corps of Engineers

OMAHA DISTRICT

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Water Quality Data

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The Omaha District has collected water quality data at Corps projects in the District since the late 1970's. The data have been assessed and summarized in water quality reports prepared by the District.  The data collected are stored in the U.S. Environmental Protection Agency's national STORET and WQX water quality database. The data can be accessed and downloaded online from the STORET/WQX website at www.epa.gov/storet

Recent water quality data collected by the District may not have been entered into STORET/WQX and can be obtained by contacing the District.

The U.S. Geological Survey collects water quality data throughout the United States.  Water quality data have been collected at Corps project areas in the District. These data can be accessed online through the U.S. Geological Survey's website "Surface-Water Data for the Nation" at http://waterdata.usgs.gov/usa/nwis/sw.

State environmental agencies responsible for surface water quality management routinely collect surface water quality data within their State. Water quality data have been collected by the States at Corps projects in the District. This information may be stored and accessible through the U.S. Environmental Protection Agency's STORET/WQX database. State water quality agency websites may publish water quality information on their web sites. The State of Nebraska, during the recreation season, publishes weekly bacteria and cyanobacteria toxin levels at District reservoirs with swimming beaches.

Local Watershed Management Authorities have been established to protect and improve water quality at the three Colorado Tributary Projects in the District:  Bear Creek, Chatfield, and Cherry Creek Reservoirs.  Each of these Watershed Authorities has adopted local water quality regulations and water quality management plans to protect and manage water quality at the respective reservoirs.  As part of these water quality management plans, the Watershed Authorities are implementing comprehensive water quality monitoring programs.  For efficiency purposes, the Corps ceased its water quality monitoring activities at the three Colorado Tributary Projects in 2002, and now defers to the respective Watershed Authorities for assessment of water quality conditions at Bear Creek, Chatfield, and Cherry Creek Reservoirs.  Persons interested in water quality conditions at the three Colorado tributary projects can visit the websites maintained by the following groups:

Fish Consumption Advisories Issued at Omaha District Projects

Fish are capable of accumulating many toxic substances in excess of 1,000 times the concentrations found in surface waters.  The public has expressed concerns on whether fish caught from Corps project waters are safe to consume.  It is important that answers to public health concerns be based on substantiated knowledge of toxicants in fish fillets and the public health risks associated with measured toxicant concentrations.  This type of information can be used by States and Tribes when considering the issuance of fish consumption advisories.  Fish consumption advisories have been issued by States and Tribes for fish caught from certain District project waters within those states.  The following are the fish consumption advisories that have been issued for District project waters as of January 1, 2012.

State

Water Body

Identified Contaminant

Further Information

Missouri River Mainstem Project Waters:

Montana

Fort Peck Reservoir

Mercury

More Information

North Dakota

Garrison Reservoir

Mercury

More Information

North Dakota

Missouri River -- Garrison Dam Tailwaters

Mercury

More Information

Nebraska

Missouri River downstream from Gavins Point Dam

Dieldrin, PCBs

More Information

South Dakota

Cheyenne River and Oahe Reservoir within Cheyenne River Sioux Tribal Land

Mercury

More Information

More Information

Tributary Project Waters:

Nebraska

Ed Zorinsky Reservoir

Mercury

More Information

Nebraska

Standing Bear Reservoir

Mercury

More Information

Nebraska

Wehrspann Reservoir

Mercury

More Information

North Dakota

Bowman-Haley Reservoir

Mercury

More Information

North Dakota

Pipestem Reservoir

Mercury

More Information

North Dakota

Pipestem Creek downstream of Pipestem Dam

Mercury

More Information