Iowa DNR
Iowa DNR
Fish Kill DatabaseDB

Fish Kill Event - Unnamed Tributary to Otter Creek and Otter Creek

Cairo

Event ID
1078
Date of Kill
10/17/2025
Waterbody Type
River/Stream
Cause Origin
Anthropogenic
Cause
Animal Waste
Mode
Spill
Animal Waste Source
Land-Applied
Animal Type
Hogs
Approx Head
Unknown/Unspecified
Magnitude
2 (101 - 1000 fish killed)
Estimated Fish Killed
933
Kill Length
0.60 miles
Valuation
$100.10
Investigation Expenses
$451.02
County
Louisa
ESD Field Office
FO 6
Fisheries Office
Lake Darling State Park
LongDD
-91.30940
LatDD
41.15480
Created Date
8/26/2026 3:39:17 PM
Last Update
8/27/2026 6:49:37 AM
For more information about this fish kill event, contact the Field Office or Fisheries Office listed above.
Impacted Assessment Segments
Lat/Long uses WGS84 datum

Highlighted river segments indicate those impacted in part or whole by this fish kill event. It is not meant to represent the actual extent of the kill.

Onsite Comments

The fish kill originated from a broken umbilical line. Dead fish were observed along 1,128 yards of an Unnamed Tributary of Otter Creek & Otter Creek beginning at (41.1548, -91.3094) and ending at (41.1585, -91.3024).