Diamond Lake IA 03-NSK-861
Poweshiek County S2T78NR15W approx 2.5 mi SW of Montezuma.
This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.
Assessment Cycle
1996
Result Period
1992 - 1994
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Trophic
Eutrophic
Trend
Stable
Legacy ADBCode
IA 03-NSK-00242-L_0
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Fish Consumption
Not assessed
Drinking Water
Threatened
Documentation
Assessment Comments
Assessment is based on results of water quality monitoring and surveys of the DNR Fisheries Bureau.
Basis for Assessment
Used assessment of support of the Class B(LW) aquatic life uses developed for the 1994 report (=FST). Used results of sampling in January 1995 reported by Miller and Kennedy (1995) to assess support of the Class C (drinking water) uses as FST due to (1) detection of only two of the eight herbicides monitored, (2) presence of relatively low levels of atrazine (0.25 ug/l (inlet) and 0.26 ug/l (dam)) and cyanazine (0.1 ug/l, dam), and (3) absence of violations of MCLs.
Monitoring and Methods
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) |
| 270 | PWS chemical monitoring (ambient water) |
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 |