Lake Meyer IA 01-TRK-158

Winneshiek County S34T97NR9W 3 mi SW of Calmar.

This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.

Assessment Cycle

1998

Result Period

1994 - 1996

Designations

Assessment Type

Monitored

Integrated Report

Category 0

Trophic

Eutrophic

Trend

Stable

Legacy ADBCode

IA 01-TRK-02245-L_0

Overall Use Support

Partial

Aquatic Life Use Support

Partial

Fish Consumption

Fully

Primary Contact Recreation

Not assessed

Documentation

Assessment Comments

Monitored in 1992 by ISU for Clean Lakes Classification study (1994). Monitored for 1994 RAFT.

Basis for Assessment

Continued to use assessments of support of the Class A primary contact recreation uses (=NAS) developed for the 1994 and 1996 reports. Also continued to assess support of the Class B(LW) aquatic life uses as PS. The 1996 assessment was reviewed and approved by the DNR Fisheries Bureau. This lake was added to the 1998 list of Section 303(d) waters at the recommendation of the DNR Fisheries Bureau. Based on results of the 1994 FAFT fish tissue sampling (see above), fish consumption uses remain assessed as FS.

Monitoring and Methods

Assessment Key Dates

Methods

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

Causes and Sources of Impairment

Causes	Use Support	Cause Magnitude	Sources	Source Magnitude
Algal Grwth/Chlorophyll a	Overall Use Support	Moderate	Internal nutrient cycling (primarily lakes)	Moderate
Algal Grwth/Chlorophyll a	Primary Contact Recreation	Moderate	Internal nutrient cycling (primarily lakes)	Moderate
Noxious aquatic plants	Overall Use Support	Moderate	Internal nutrient cycling (primarily lakes)	Moderate
Noxious aquatic plants	Primary Contact Recreation	Moderate	Internal nutrient cycling (primarily lakes)	Moderate
Nutrients	Overall Use Support	Moderate	Agriculture Internal nutrient cycling (primarily lakes) Natural Sources	Moderate Moderate Slight
Nutrients	Aquatic Life Support	Moderate	Agriculture Internal nutrient cycling (primarily lakes) Natural Sources	Moderate Moderate Slight
Nutrients	Primary Contact Recreation	Moderate	Agriculture Internal nutrient cycling (primarily lakes) Natural Sources	Moderate Moderate Slight
Organic enrichment/Low DO	Overall Use Support	Moderate	Internal nutrient cycling (primarily lakes)	Moderate
Organic enrichment/Low DO	Aquatic Life Support	Moderate	Internal nutrient cycling (primarily lakes)	Moderate
Siltation	Overall Use Support	Moderate	Agriculture Natural Sources	Moderate Slight
Siltation	Aquatic Life Support	Moderate	Agriculture Natural Sources	Moderate Slight