Fish Kill Event - McLoud Run
at Cedar Rapids. S4&9, T83N,R7W
- Event ID
- 360
- Date of Kill
- 7/23/1997
- Waterbody Type
- River/Stream
- Cause Origin
- Anthropogenic
- Cause
- Chlorinated Water
- Mode
- Spill
- Magnitude
- 2 (101 - 1000 fish killed)
- Estimated Fish Killed
- 418
- Kill Length
- 0.87 miles
- Valuation
- $748.77
- County
- Linn
- ESD Field Office
- FO 1
- Fisheries Office
- Lake Macbride Station
- LongDD
- -91.66613
- LatDD
- 42.02161
- Created Date
- 4/24/2000 12:00:00 AM
- Last Update
- 7/18/2019 2:10:08 PM
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.
No information on flow conditions in McCloud Run provided. Paul Sleeper, DNR fisheries biologist (Solon), reported that 407 white suckers were killed, and that this species is especially sensitive to the high levels of chlorine from the water main break. Levels of chlorine in city water are approx 2.5 ppm, and chlorine is toxic to white suckers at 0.5 ppm. Sleeper also noted that several small stoneroller and one 10" channel catfish were observed dead outside the sampled areas. Kill caused by city of Cedar Rapids water main break at corner of Evergreen St and Terrace Hill discharging approximately 200,000 to 300,000 gallons of chlorinated water to storm drains and eventually to McCloud Run. This was the second kill in McCloud Run in summer 1997 likely caused by city water main breaks. City of Cedar Rapids.