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Assessment Comments

Assessment based on (1) reports by IDNR Fisheries Bureau and (2) results of lake monitoring.

Basis for Assessment

Assessment as PS in 1992 report was changed to FST for the 1994 report for the following reasons:  (1) DNR Fisheries assessed the lake as FST; (2) results of monitoring in 1990 show that average levels of secchi depth, chl-a, total-P, and TSS are at or better than overall averages for the 116 SPOLs sampled in 1990 and 1992, (3) relatively low sedimentation rate (1.2 cm/yr); (4) lake life estimated at > 100 years, (5) no problems with fishkills, and (6) 90 % of watershed in approved SC practices; (5) levels of use for swimming and fishing as reported by Bachmann et al.  (1994) relatively high for SPO impoundment.   DSC (1991) reports relatively good WQ with rel low levels of nutrients; fishery was damaged by introduction of gizzard shad in 1981 and lake is to be renovated when funds are available; the only NPSP problem is sheet and rill erosion on cropland.