Cedar Lake IA 04-LDM-1101
Madison County S19T76NR27W near Winterset.
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
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 04-LDM-03085-L_0
Overall Use Support
Threatened
Aquatic Life Use Support
Not assessed
Fish Consumption
Not assessed
Drinking Water
Threatened
Documentation
Assessment Comments
Basis for Assessment
Lake was sampled on Feb. 1, 1993; of the seven herbicides analyzed in samples from two locations, only atrazine was detected at 0.1 ug/l near the dam. Also received report of relatively high level of atrazine in Cedar Lake in early spring 1994; thus, assess DW use as FST.
Monitoring and Methods
Assessment Key Dates
Methods
| 870 | Drinking water supply closures or advisories (source-water quality based) |
| 270 | PWS chemical monitoring (ambient water) |
| 275 | PWS chemical monitoring (finished water) |
Monitoring Levels
| Biological | 0 |
| Habitat | 0 |
| Physical Chemistry | 2 |
| Toxic | 0 |
| Pathogen Indicators | 0 |
| Other Health Indicators | 0 |
| Other Aquatic Life Indicators | 0 |
| # of Bio Sites | 0 |
| BioIntegrity | N/A |