Lacey Keosauqua Lake IA 04-LDM-1008

Van Buren County S2T68NR10W 1 mi S of Keosauqua

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-00160-L_0

Overall Use Support

Partial

Aquatic Life Use Support

Partial

Fish Consumption

Not assessed

Primary Contact Recreation

Partial

Drinking Water

Not assessed

Documentation

Assessment Comments

Basis for Assessment

Both fishable and swimmable uses were assessed as PS based on the recommendation of DNR Fisheries. Results of monitorng show that average levels of chl-a, total-P, and TSS are better than overall averages for the 86 SPO impoundments sampled in 1990 and 1992 but are within +/- 1 SD; average level of secchi depth approx equal to overall average; (3) lake does not have problem with fishkills (4) lake supports relatively high level of swimming but a rel. low amount of fishing. Lake has a moderately high sedimentation rate (4.1 cm/yr) but has a moderately long life expectancy for a small (22 acre) impoundment (87 years). DSC (1991) notes that the lake is relatively infertile for Iowa, the WS is almost entirely park and forest, there are no PS or NPS problems, and that the development of the fishery has been uneven.