McLoud Run IA 02-CED-508

Assessment Comments

Assessment is based on fish kills caused by watermain breaks in summer 1997.

Basis for Assessment

SUMMARY:  The general (aquatic life) uses remained assessed as "partially supported."  EXPLANATION:  The previous assessment of support for the general beneficial uses of this stream ("partially supported") was based on the occurrence of two fish kills during the 1996-1997 biennial assessment period (see assessment developed for the 1998 report above).   The most recent fish kills occurred in summer 1997 and were both due to watermain breaks (see above; because these kills occurred within a 30-day period and were both due to the same cause, they are treated as one kill).   According to DNR's assessment methodology for Section 305(b) reporting, occurrence of a single pollution-caused fish kill within the most recent three-year period (1997-1999) indicates that the aquatic life uses of a waterbody are only "partially supported."  Thus, the general aquatic life uses of this stream remain assessed as "partially supported" due to fish kills.   This assessment is based only on the occurrence of fish kills.   Additional chemical and/or biological monitoring is needed to improve this assessment.