Fish Kill Event - Great Western Park Pond

Manning

Event ID: 941
Date of Kill: 8/5/2017
Waterbody Type: Pond
Cause Origin: Unknown
Cause: Unknown
Mode: N/A
Magnitude: 1 (1 - 100 fish killed)
Estimated Fish Killed: 24
Valuation: $360.00
Investigation Expenses: $80.43
County: Carroll
ESD Field Office: FO 4
Fisheries Office: Black Hawk Lake Office
LongDD: -95.07935
LatDD: 41.90095
Created Date: 3/6/2019 2:05:59 PM
Last Update: 3/6/2019 2:05:59 PM

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

The ESD responded to a fish kill report on Saturday, August 5th . Fisheries staff conducted their investigation on August 7th . Fisheries left the office at 2:45 PM and returned at 5:00 PM and drove a total of 61 miles. A total of 24 dead fish were identified. Fisheries staff conducted a complete enumeration of dead fish via boat. The water was a deep green color indicating an algae bloom. An oxygen profile was taken and DO levels near the surface were super saturated. At 8 feet deep conditions were hypoxic (0.16 ppm). It’s possible that an algae bloom could be what caused the fish kill, but water testing by ESD also showed small amounts of a fungicide that is classified as very toxic to aquatic organisms. It’s unlikely that a responsible party will be identified.