Assessment Comments
Assessment is based on occurrence of a fish kill on an unnamed tributary of the Little Volga River in September 2002. The Little Volga River was not affected by this kill.
Basis for Assessment
SUMMARY: The Class B(WW) aquatic life uses are assessed (evaluated) as "partially supported" due to occurrence of a fish kill in September 2002. This kill was caused by animal waste.
EXPLANATION: The fish kill occurred on September 3, 2002, and resulted from the discharge liquid manure when a pipe failure occurred. The manure flowed to this tributary of the Little Volga River; the Little Volga River was not affected by this kill. Approximately 1.2 miles of this unnamed tributary was affected killing an estimated 12,700 fish. According to IDNR's assessment methodology for Section 305(b) reporting, occurrence of a single pollution-caused fish kill within the most recent three-year period indicates ongoing impairment of the aquatic life uses.
