Little Sioux Park Lake IA 06-LSR-1568

Assessment Comments

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

Basis for Assessment

Both fishable and swimmable uses were assessed as FS for the following reasons:  (1) BPJ of DNR staff; (2) results of monitoring show that average levels of secchi depth, chl-a, total-P and TSS are much better than overall averages for the 86 SPO impoundments sampled in 1990 and 1992; average levels of secchi depth, chl-a, and total-P are in the best 10% of the SPO impoundments sampled; (3) the sedimentation rate (0.4 cm/yr) and life expectancy (790 years) are in the best 10% of the SPO impoundments sampled; (4) this very small SPOL (12.8 acres) supports very high levels of both fishing and swimming (over 200 user days/yr/acre for each use).   Thus, lake appears to fully support uses and does not appear to have threats to support of these uses.