North Twin Lake IA 04-RAC-1167
Calhoun County S1T88NR33W 4 mi N of Rockwell City.
This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.
Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 04-RAC-01390-L_0
Overall Use Support
Partial
Aquatic Life Use Support
Partial
Fish Consumption
Fully
Primary Contact Recreation
Partial
Documentation
Assessment Comments
Basis for Assessment
Continue to use the asesssments of support of the Class A primary contact and Class B(LW) aquatic life uses (both=PS) and the fish consumption uses (=FS) developed for the 1994 report. These assessments were reviewed by the DNR Fisheries Bureau. DNR fisheries biologist noted that aquatic macrophytes are not a problem in this lake.
Monitoring and Methods
Assessment Key Dates
Methods
| 340 | Primary producer surveys (phytoplankton/periphyton/macrophyton) |
| 110 | Information from local residents |
| 120 | Surveys of fish and game biologists/other professionals |
| 222 | Non-fixed-station monitoring (conventional during key seasons and flows) |
| 260 | Fish tissue analysis |
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 |