Iowa DNR
Iowa DNR
Fish Kill DatabaseDB

Fish Kill Event - Elizabeth Holland South Pond

Norwalk

Event ID
1076
Date of Kill
7/22/2026
Waterbody Type
Pond
Cause Origin
Anthropogenic
Cause
Wastewater
Mode
Discharge
Magnitude
3 (1001 - 5000 fish killed)
Estimated Fish Killed
1,392
Valuation
$20,903.83
Investigation Expenses
$1,288.55
County
Warren
ESD Field Office
FO 5
Fisheries Office
Boone Research Station
LongDD
-93.67162
LatDD
41.49441
Created Date
8/18/2026 10:26:06 AM
Last Update
8/18/2026 10:26:06 AM
For more information about this fish kill event, contact the Field Office or Fisheries Office listed above.
Impacted Assessment Segments
No segments listed
Lat/Long uses WGS84 datum
Onsite Comments

Many dead fish were observed in the first retention pond in the park, with fish struggling in the second retention pond. Water entering the pond was creating a pink foam and a strong odor. The dissolved oxygen was tested with results of 3.5 mg/l, which is low for a surface water body and impairs aquatic life. Wastewater decomposition was the likely cause. Species killed included bluegill, channel catfish, and largemouth bass.