Boyer River IA 06-BOY-1511
from confluence with unnamed tributary approximately 5 miles south of Early (S 1/2 S33 T88N R37W Sac Co.) to confluence with unnamed tributary approximately 4 miles NE of Schaller in SE 1/4 SW 1/5 S5 T89N R37W Sac Co.
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 06-BOY-0030_3
Overall Use Support
Threatened
Aquatic Life Use Support
Threatened
Documentation
Assessment Comments
Assessment is based on results of an October 1995 DNR stream use assessment.
Basis for Assessment
Continued to use the assessment of support of the Class B(LR) aquatic life uses developed for the 1996 report (=FST). A review of the field sheet from the October 1995 DNR stream use assessments suggests that the primary threats to the continued support of the Class B(LR) uses are frequent channelization, pasturing of the riparian corridor, and the resultant destabilization and erosion of stream banks.
Monitoring and Methods
Assessment Key Dates
| 10/1/1995 | DNR Stream Use Assessment |
Methods
| 330 | Fish surveys |
| 375 | Visual observation-- may not quantify some parameters-- single season-- by prof. |
Monitoring Levels
| Biological | 3 |
| Habitat | 3 |
| Physical Chemistry | 0 |
| Toxic | 0 |
| Pathogen Indicators | 0 |
| Other Health Indicators | 0 |
| Other Aquatic Life Indicators | 0 |
| # of Bio Sites | 0 |
| BioIntegrity | N/A |
Causes and Sources of Impairment
| Causes | Use Support | Cause Magnitude | Sources | Source Magnitude |
|---|---|---|---|---|
| Other habitat alterations | Overall Use Support | Not Impairing |
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| Other habitat alterations | Aquatic Life Support | Not Impairing |
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