Centerville Reservoir Lower IA 05-CHA-1319
Appanoose County S12T68NR18W near Centerville.
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 05-CHA-00330-L_0
Overall Use Support
Threatened
Aquatic Life Use Support
Not assessed
Fish Consumption
Not assessed
Primary Contact Recreation
Not assessed
Drinking Water
Threatened
Documentation
Assessment Comments
Basis for Assessment
Lake was sampled on Feb 9, 1993; of the seven herbicides analyzed in the sample from the upper end of the reservoir, both atrazine (1.9 ug/l) and cyanazine (0.51 ug/l) were detected. Herbicides detected in sediment were atrazine (14 ug/kg) and alachlor (36 ug/kg). The highest concentrations of atrazine in water from both the upper and lower reservoirs were the highest of the 15 reservoirs sampled; both reservoirs also contained the highest level of atrazine in sediment. Although MCLs were not exceeded, comparison to Corydon Res, for which more detailed data exist for 1991 (Kalkhoff 1993), suggests that levels of herbicides likely exceed MCLs during summer months. More sampling is needed.
Monitoring and Methods
Assessment Key Dates
Methods
| 240 | Non-fixed station physical/chemical (conventional + toxicants) |
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 |