Viking Lake IA 05-NOD-1407
Montgomery County S6T71NR36W 4 mi. E of Stanton.
Assessment Comments
Basis for Assessment
Both uses were assessed as FST for the following reasons: (1) BPJ of DNR Fisheries; (2) results of monitoring show that average levels of secchi depth, TSS, and total-P were better than overall averages for the 116 SPOLs sampled in 1990 and 1992; level of chl-a was worse than the overall average and approached the poor end of the overall mean + 1 SD; (3) lake does not have problems with fishkills; lake has very low sedimentation rate (1.4 cm/yr) and very long life expectancy (323 years) for an impoundment; lake supports moderate amount of swimming use. Thus, lake has approximately average water quality for SPOLs in Iowa but has a potential problem with nuisance blooms of algae. DSC (1991) reports good WQ and fishery; sedimentation ponds have reduced siltation; sheet & rill erosion still a concern.
Assessment Key Dates
Methods
| 340 | Primary producer surveys (phytoplankton/periphyton/macrophyton) |
| 420 | Water column surveys (e.g. fecal coliform) |
| 120 | Surveys of fish and game biologists/other professionals |
| 222 | Non-fixed-station monitoring (conventional during key seasons and flows) |
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 |