Iowa DNR

Water Quality Assessments

Impaired Waters List

East Fork Des Moines River IA 04-EDM-1882

from County Road B63 (aka 130th) (S23 T94N R29W Kossuth Co) to outfall of the Algona wastewater treatment plant (WWTP)

Assessment Cycle
Release Status
Result Period
1994 - 1996
Assessment Type
Integrated Report
Category 0
Legacy ADBCode
IA 04-EDM-0010_3
Overall Use Support
Aquatic Life Use Support
Fish Consumption
Assessment Comments

Assessment is based on results of DNR ambient monthly monitoring near St. Joseph.

Basis for Assessment

Had no violations of Class B(WW) WQ criteria for conventional pollutants in the 24 samples collected during the 1996-97 period.   The only violation of Class B(WW) WQ criteria for toxics is the June 1995 violation of TRC; this was the only violation in 36 samples analyzed for TRC from 1995-97 (see above account for the 1996 report).   Section 305(b) guidelines allow one violation of an acute/chronic WQ criterion in an abundant data set (more than 10 samples) for waters assessed as fully supporting (see p.  3-18 of the 1998 Section 305(b) guidelines).   Continue to use the assessment of support of fish consumption uses developed for the 1996 report (=FS); i.e., all contaminants were less than 1/2 FDA action levels.

Monitoring and Methods
Assessment Key Dates
9/11/2001 Fixed Monitoring End Date
10/19/1999 Fixed Monitoring Start Date
230 Fixed station physical/chemical (conventional plus toxic pollutants)
Monitoring Levels
Biological 0
Habitat 0
Physical Chemistry 3
Toxic 0
Pathogen Indicators 0
Other Health Indicators 0
Other Aquatic Life Indicators 0
# of Bio Sites 0
BioIntegrity N/A
Causes and Sources of Impairment
Causes Use Support Cause Magnitude Sources Source Magnitude