Red Haw Lake IA 04-LDM-1073

Lucas County S28T71NR21W 2 mi SE of Chariton.

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

Assessment Cycle

1994

Result Period

1990 - 1992

Designations

Assessment Type

Monitored

Integrated Report

Category 0

Legacy ADBCode

IA 04-LDM-02296-L_0

Overall Use Support

Threatened

Aquatic Life Use Support

Threatened

Fish Consumption

Not assessed

Primary Contact Recreation

Threatened

Drinking Water

Not assessed

Documentation

Assessment Comments

Assessment is based on surveys of DNR Fisheries Bureau and results of lake monitoring.

Basis for Assessment

Both were assessed as FST for the 1994 report for the following reasons: (1) BPJ of DNR/EPD (Agena); (2) results of monitoring in 1990 show that average levels of secchi depth, chl-a, total-P, and TSS are better than overall averages for the 116 SPOLs sampled in 1990 and 1992; averages of secchi depth and chl-a are in best 10% of the 86 SPO impoundments; (3) according to Bachmann et al. (1994), lake has relatively low sedimentation rate (1.6 cm/yr) and long life expectancy (274 yrs) for an impoundment; (4) lake receives moderately high use for swimming and fishing; (5) fishkills are not a problem. Thus, lake appears to have no impairments to chemical or physical characteristics. Relatively high erosion rate in region (14 to 27 T/A/YR suggests a threat from ag-NPS; DSC (1991), however, suggests minimal problems w/ sheet/rill erosion.