Silver Lake IA 01-MAQ-17
Delaware County S16T88NR4W SE edge of Delhi.
This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.
Assessment Cycle
1994
Result Period
1990 - 1992
Designations
Assessment Type
Evaluated
Integrated Report
Category 0
Legacy ADBCode
IA 01-MAQ-00680-L_0
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Primary Contact Recreation
Not assessed
Documentation
Assessment Comments
Assessment is based on results of (1) ISU lake survey in 2000-01, (2) surveys by IDNR Fisheries Bureau (3) ISU report on lake phytoplankton communities, and (4) results of U.S. EPA/IDNR fish tissue monitoring in 1999. See attached document for details.
Basis for Assessment
Lake assessed as PS for the 1994 report for same reasons as 1992 report.
Monitoring and Methods
Assessment Key Dates
Methods
| 200 | PHYSICAL/CHEMICAL MONITORING |
| 120 | Surveys of fish and game biologists/other professionals |
Monitoring Levels
| Biological | 0 |
| Habitat | 0 |
| Physical Chemistry | 0 |
| Toxic | 0 |
| Pathogen Indicators | 0 |
| Other Health Indicators | 0 |
| Other Aquatic Life Indicators | 0 |
| # of Bio Sites | 0 |
| BioIntegrity | N/A |
Causes and Sources of Impairment
| Causes | Use Support | Cause Magnitude | Sources | Source Magnitude |
|---|---|---|---|---|
| Nutrients | Overall Use Support | High |
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| Nutrients | Aquatic Life Support | High |
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| Nutrients | Primary Contact Recreation | High |
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| Siltation | Overall Use Support | Moderate |
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| Siltation | Aquatic Life Support | Moderate |
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