Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Forney Lake IA 06-WED-1681

Fremont County S22T70NR43W 2.5 mi. SSE of Bartlett.

Assessment Cycle
2014
Result Period
2010 - 2012
Designations
Class B(LW) Class HH
Assessment Methodology
Assessment Type
Evaluated
Integrated Report
Category 2a
Legacy ADBCode
IA 06-WED-00015-L_0
Overall Use Support
Fully
Aquatic Life Use Support
Fully
Fish Consumption
Not assessed
Documentation
Assessment Comments

Assessment remains based on information from the IDNR Wildlife Bureau.

Basis for Assessment

[NOTE:  For the 2002 report, the waterbody identification number for this wetland was changed from "IA-WETLAND-20" to "IA 06-WED-00015-L."  This wetland is designated as a Class B(LW)/HH waterbody in the March 2006 version of the Iowa Water Quality Standards.]

SUMMARY/EXPLANATION:  The Class B(LW) aquatic life uses remain assessed (evaluated) as "fully supported” based on information from the IDNR Wildlife Bureau.   According to the local IDNR biologist (Priebe), the primary threat remains flooding-related siltation from agricultural nonpoint sources and problems with water level fluctuation related to the controlled flows of the nearby Missouri River.   Fish consumption uses remain "not assessed" due to the lack of fish contaminant monitoring at this wetland.   In general, Iowa wetlands are not managed for recreational fisheries; thus, fish contaminant monitoring is not typically conducted at these waterbodies.   This assessment is the same as that developed for previous assessment/listing cycles.

Monitoring and Methods
Assessment Key Dates
Methods
120 Surveys of fish and game biologists/other professionals
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
Causes and Sources of Impairment
Causes Use Support Cause Magnitude Sources Source Magnitude
Siltation Overall Use Support Not Impairing
  • Agriculture
  • Bank or Shoreline Modification/Destabilization
  • Natural Sources
  • Not Impairing
  • Not Impairing
  • Not Impairing
Flow alteration Overall Use Support Not Impairing
  • Hydromodification
  • Not Impairing