Twelve Mile Creek Lake IA 05-GRA-1367

Assessment Comments

Basis for Assessment

SUMMARY:  The Class A (primary contact recreation uses) remained "not assessed."  Continued to assess support of the Class B(LW) aquatic life uses as "fully supported / threatened."  The Class C (drinking water) uses remained "fully supported."  Fish consumption uses remained "fully supported."  EXPLANATION:  The level of support of the Class A (primary contact recreation) remained "not assessed" due to the lack of information on levels of indicator bacteria at this lake.   The previous (1998) assessment of support of the Class B(LW) uses ("fully supported / threatened") was reviewed and approved by the DNR Fisheries Bureau in 2000.   Class C (drinking water) uses remained "fully supported" based on results from a 1995 study of Iowa water supply reservoirs (see assessment developed for the 1996 report above).   Fish consumption uses remain "fully supported" based on results of EPA/DNR fish tissue (RAFT) monitoring in 1996 (see assessment developed for the 1998 report above).