Holland Creek IA 02-CED-552
mouth (S35 T88N R17W Grundy Co.) to confluence with unnamed tributary in S29 T88N R17W Grundy Co.
Assessment Comments
Stream use assessment in Grundy County.
Basis for Assessment
Used a review of the field sheet from the November 1990 DNR stream use assessment in Grundy County to upgrade the assessment of support of the B(LR) aquatic life uses to FS due to (1) moderately diverse fish community (13 species from 4 families) for headwater streams in the Iowan Surface subecoregion (47c), (2) presence of nearly all the expected fish taxa (9 of 11) for streams in this subregion, and (3) indications of relatively good habitat quality, even at the upstream boundary of the Class B(LR) reach where the DNR stream use assessment was conducted. The data upon which this assessment is based are more than 5 years old. Additional monitoring is needed to update this assessment.
Assessment Key Dates
Methods
| 330 | Fish surveys |
| 375 | Visual observation-- may not quantify some parameters-- single season-- by prof. |
| 150 | Monitoring data more than 5 years old |
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 |