Fox River IA 04-FOX-995
from unnamed tributary (NW 1/4 S6 T68N R12W Davis Co.) to confluence with unnamed tributary in S29 T69N R15W Davis Co.
This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.
Assessment Cycle
2002
Result Period
1998 - 2000
Designations
Assessment Methodology
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 04-FOX-0010_2
Overall Use Support
Not supporting
Aquatic Life Use Support
Not supporting
Documentation
Assessment Comments
Assessment is based on results of (1) USGS monitoring in 1998 and 1999 near Bloomfield, West Grove and Paris and (2) UHL biological monitoring near Pulaski and West Grove in 1998.
Basis for Assessment
SUMMARY: The Class B(LR) aquatic life uses remain assessed as "not supported." EXPLANATION: Continued to use the assessment of support of the Class B(LR) uses developed for the 2000 report (see above). The data upon which this assessment was based were collected in 1998 and 1999. These data are less than five years old and are thus appropriate for characterizing current water quality conditions.
Monitoring and Methods
Assessment Key Dates
| 9/30/1999 | Fixed Monitoring End Date |
| 5/1/1998 | Fixed Monitoring Start Date |
Methods
| 330 | Fish surveys |
| 240 | Non-fixed station physical/chemical (conventional + toxicants) |
Monitoring Levels
| Biological | 3 |
| 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 |
Causes and Sources of Impairment
| Causes | Use Support | Cause Magnitude | Sources | Source Magnitude |
|---|---|---|---|---|
| Unionized Ammonia | Overall Use Support | High |
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| Unionized Ammonia | Aquatic Life Support | High |
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| Organic enrichment/Low DO | Overall Use Support | Moderate |
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| Organic enrichment/Low DO | Aquatic Life Support | Moderate |
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| Other habitat alterations | Overall Use Support | Not Impairing |
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| Other habitat alterations | Aquatic Life Support | Not Impairing |
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