MRBDC Minnesota River Assessment Project (MRAP): Biological and Toxicological Assessment - Ambient Toxicity Assessment in the Minnesota River Basin

MINNESOTA RIVER BASIN DATA CENTER


Minnesota River Assessment Project (MRAP): Biological and Toxicological Assessment - Ambient Toxicity Assessment in the Minnesota River Basin



Minor watershed number(s):   33070, 30030, 30047, 32042, 30049, 25161

For this study, collection of samples occurred from fourteen Minnesota River main stem and twelve tributary sites. Samples were collected in the following minor watersheds: 33070, 30030, 30047, 32042, 30049, 25161.

The Biological and Toxicological Assessment component of the Minnesota River Assessment Project (MRAP) includes studies which assist in defining existing conditions in the Minnesota River and it's tributaries. This ambient toxicity study is completed as a part of the Biological and Toxicological component of the Minnesota River Assessment Project (MRAP). The study assesses the toxicity of sediment and ambient water samples collected in all four seasons from 1989-1992. Sediment and ambient water samples came from the Minnesota River's main stem, four reservoirs, and eight tributaries. Samples collected from five minor watershed sites had ambient toxicity tests performed on them in 1992.

Surface Water Quality Monitoring

Data Summary MRAP Biological and Toxicological Assessment - Ambient Toxicity Assessment in the Minnesota River Basin includes surface water quality data from sediment pore water samples collected from 1989-1990. Analysis included the following parameters: cations, anions, ammonia-nitrogen, total phosphorus, and total organic carbon. Analysis of sediment pore water samples collected during 1992 included the following nutrients: ammonia-nitrogen, nitrate/nitrite-nitrogen, total phosphorus, and total nitrogen. Ambient toxicity of surface water, sediment pore water, and bulk sediment was determined by exposing various water quality indicator organisms to the samples.
Data Description MRAP Biological and Toxicological Assessment - Ambient Toxicity Assessment in the Minnesota River Basin
Data:   Surface Water Quality Monitoring
Format:  Hard Copy File
Status: Complete
Date:  1992
Source (contact):   Minnesota Pollution Control Agency (MPCA)
Pedigree (originator):  Minnesota Pollution Control Agency (MPCA)
Comments No additional comments.
Last update 2/99

DISCLAIMER

These data have been inventoried by the Water Resources Center at Minnesota State University, Mankato.   Although every effort has been made to validate data, no warranty, expressed or implied, is made by the Water Resources Center as to the accuracy of the database; nor shall the fact of distribution constitute any such warranty.   The Water Resources Center continues to update and correct data as necessary.



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