Red Rock Reservoir IA 04-LDM-1017
Marion County S19T76NR18W near Pella.
This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.
Assessment Cycle
1992
Result Period
1988 - 1990
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 04-LDM-0030-L_0
Overall Use Support
Not supporting
Aquatic Life Use Support
Fully
Fish Consumption
Not supporting
Primary Contact Recreation
Threatened
Documentation
Assessment Comments
Basis for Assessment
Had no viols of Class B(WW) WQC (metals not analyzed). Fecals at lake station & 5 of 6 beach stations showed FS; 1 station at WBB had 2 viols in 10 samples (=PS); combined w/ other data, assess as FST. No ISU fillet samples w/ contams > 1/2 FDA action levels; fish consumpt advis issued in Dec 89, however, remains in effect (=NS).
Monitoring and Methods
Assessment Key Dates
Methods
| 420 | Water column surveys (e.g. fecal coliform) |
| 230 | Fixed station physical/chemical (conventional plus toxic pollutants) |
| 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 |
Causes and Sources of Impairment
| Causes | Use Support | Cause Magnitude | Sources | Source Magnitude |
|---|---|---|---|---|
| Pesticides | Fish Consumption | Not Impairing |
|
|