Catfish Creek IA 01-TRK-124

Assessment Comments

Assessment is based on the results of routine water quality monitoring conducted from 2000-02 by IDNR staff of the Upper Mississippi River "Long-Term Resource Monitoring Program (LTRMP) at Bellevue, IA.

Basis for Assessment

SUMMARY:  The Class B(WW) aquatic life uses are assessed (monitored) as "fully supported" based on results ambient water quality monitoring conducted from 2000-2002.   Fish consumption uses remain "not assessed" due to the lack of fish contaminant monitoring in this stream reach.   The source of data for this assessment is the results of routine water quality monitoring conducted at station CF00.3M from 2000 through 2002 by IDNR staff of the Upper Mississippi River "Long-Term Resource Monitoring Program (LTRMP) at Bellevue, IA.  

EXPLANATION:  The assessment of the Class B(WW) uses is based on results of IDNR/LTRMP chemical/physical monitoring.   The IDNR/LTRMP staff at Bellevue supplied water quality data for 36 samples collected from Catfish Creek during the period January 2000 through September 2002.   Samples were collected monthly during all months of the year.   The parameters analyzed included dissolved oxygen, pH, ammonia-nitrogen, total phosphorus, total nitrogen, total suspended solids, and chlorophyll.   A summary of these data show no violations of the Class B(WW) water quality criteria for temperature, pH, dissolved oxygen, or ammonia-nitrogen in the 36 samples collected.   Fish consumption uses remain "not assessed" due to the lack of monitoring in this stream reach.