Cedar River IA 02-CED-468

Assessment Comments

Assessment is based on results of IDNR ambient city monitoring and fish tissue (RAFT) monitoring.

Basis for Assessment

Used assessment of support of the Class B(WW) aquatic life uses developed for the 1996 report (=FST); the USGS NASQAN WQ monitoring station at Hwy 20 in Cedar Falls is no longer monitored for WQ as part of the NASQAN program.  Also, continued to use the assessment of support of the Class A primary contact recreation uses developed for the 1996 report (=PS); additional monitoring, however, should be conducted to confirm that levels of indicator bacteria (fecal coliforms) continue to suggest an impairment.   Assessed support of the fish consumption uses as FS due to results of the 1997 RAFT fish contaminant monitoring at the fixed station RAFT site at Cedar Falls that showed levels of all contaminants less than 1/2 of respective FDA action levels.   Because both the 1995 and 1997 RAFT samplings showed low levels of contaminants, upgraded the assessment of support of the fish consumption uses from FST to FS.   Additional monitoring is needed to determine the status of the aquatic communities of this reach of the Cedar River.