STORM LAKE--Monday evening approximately 5,000 to 10,000 gallons of chiller water containing MicroTox, a peracetic acid, was mistakenly released from Sara Lee Foods.
The water flowed across the parking lot and some of it entered the storm sewer intake there and some flowed onto Richland Street and into the storm sewer intake at Richland and Vilas Road. The chiller water then flowed to the large main on Flindt Dr. and through the storm water ponds in Radio Park and discharged into Storm Lake.
The release of chiller water was diverted to the pretreatment wastewater plant as soon as the release was discovered.
At 10 p.m. Monday, testing of the chiller water in the parking lot at Sara Lee Monday evening revealed a two-parts per million level of MicroTox, and a pH of 7.08.
The DNR is monitoring the situation. The cause of the release is under investigation.