Don Williams Lake IA 04-UDM-1249
Boone County S5T84NR27W 5 mi. N of Ogden.
Assessment Comments
Assessment is based on (1) surveys of DNR Fisheries Bureau and (2) results of fish tissue (RAFT) monitoring in 1996.
Basis for Assessment
SUMMARY: The Class A (primary contact recreation) uses were considered "not assessed." Continue to assess support of the Class B(LW) aquatic life uses as "partially supported." Fish consumption uses were assessed as fully supported. EXPLANATION: The Class A uses were considered "not assessed" due to a lack of information on levels of indicator bacteria for this lake. The Class B(LW) uses remained assessed as "partially supported" based on the assessments developed for previous reports (see above). The previous assessment of the Class B(LW) aquatic life uses ("partially supported") was reviewed and approved by the DNR Fisheries Bureau in 2000. Fish consumption uses remain assessed as "fully supported" based on results of EPA/DNR fish tissue (RAFT) monitoring in 1996 (see assessment for the 1998 report above). This lake is scheduled to be sampled as part of the ISU/DNR lake water quality monitoring project.
Assessment Key Dates
Methods
| 340 | Primary producer surveys (phytoplankton/periphyton/macrophyton) |
| 120 | Surveys of fish and game biologists/other professionals |
| 222 | Non-fixed-station monitoring (conventional during key seasons and flows) |
| 260 | Fish tissue analysis |
Monitoring Levels
| Biological | 0 |
| Habitat | 0 |
| Physical Chemistry | 3 |
| Toxic | 0 |
| Pathogen Indicators | 0 |
| Other Health Indicators | 0 |
| Other Aquatic Life Indicators | 0 |
| # of Bio Sites | 0 |
| BioIntegrity | N/A |