Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Briggs Woods Lake IA 04-UDM-1255

Hamilton County S17T88NR25W near Webster City.

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 04-UDM-01880-L_0
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Fully
Primary Contact Recreation
Fully
Documentation
Assessment Comments

Basis for Assessment

Continued to use the assessment of the Class B(LW) aquatic life uses developed for the 1994 and 1996 reports (=FST).   Due to changes in assessment methodology for Iowa Section 305(b) reports, changed the assessment from FST to FS due to absence of a declining WQ trend.   Continued to assess support of Class A primary contact recreation as FS as in the 1996 report.

Monitoring and Methods
Assessment Key Dates
Methods
340 Primary producer surveys (phytoplankton/periphyton/macrophyton)
120 Surveys of fish and game biologists/other professionals
222 Non-fixed-station monitoring (conventional during key seasons and flows)
260 Fish tissue analysis
Monitoring Levels
Biological 0
Habitat 0
Physical Chemistry 0
Toxic 0
Pathogen Indicators 0
Other Health Indicators 0
Other Aquatic Life Indicators 0
# of Bio Sites 0
BioIntegrity N/A