Brophy Creek IA 01-WPS-358
mouth (S1 T80N R4E Clinton Co.) to confluence with Cherry Cr. in S17 T81N R5E Clinton Co.
- Cycle
- 2026
- Current Phase
- Public Comment
- Overall IR
- 2 - Some of the designated uses are met but there is insufficient data to determine if remaining designated uses are met.
- Trend
- Improving
- Trend Comment
- Delisting of a Category 5b benthic macroinvertebrate impairment.
- Created
- 10/27/2025 3:09:31 PM
- Updated
- 12/2/2025 8:42:15 AM
| Cycle Added | Class | Cause | Data Source | Rationale |
|---|---|---|---|---|
| 2006 | Class BWW1 | Biological: low aquatic macroinvertebrate IBI | Biological monitoring: Iowa DNR WQMA | New data: recovery of fish/invertebrate community |
The Class BWW1 use was assessed as “fully supported” based on biological sampling data. The historic Class BWW1 benthic macroinvertebrate impairment was delisted. All other designated uses were "not assessed."
Data Sources: Data Source Data Source ID Data Type Data Age Site ID Site Name Site Description Iowa DNR 6 WQ & WQ See Below 413 Brophy Creek McCausland – REMAP #108 BioNet Site ID Date Drainage Area (mi2) Ecoregion Major Drainage/ Thermal BM Sample Gear BMIBI score BMIBI Class 47f BMIBI BIT BMIBI Pass/Fail 413 9/10/24 88.5 47f MS/WW ArtSub 53 Fair 51 Pass 413 8/4/21 88.5 47f MS/WW ArtSub 67 Good 51 Pass BioNet Site ID Date Drainage Area (mi2) Ecoregion Major Drainage/ Thermal Riffle Site? FIBI score FIBI Class 47f FIBI BIT FIBI Pass/Fail 413 9/10/24 88.5 47f MS/WW NA 53 Good 36 Pass 413 8/4/21 88.5 47f MS/WW NA 46 Fair 36 Pass Community Assessment Type Assessment Result Support Level IR Category Reason Benthic Macroinvertebrates Monitored Pass (2/2) Full Fish Monitored Pass (2/2) Full Assessment was monitored because the assessment was Overall Monitored Pass Full 1 based on samples collected in a recent five-year period. Site ID Data Source ID # Days Monitoring (2021) DO Criteria Type # 2021 violations / Violations needed for impairment Violates Annual Significantly >10% Rule? Assessment Type Support Level 24 hr 0/4 No 413 6 14 16 hr 0/4 No Evaluated Full
Presumptive Class A1 - No Data
Class BWW1 - Biological Sampling:
Benthic Macroinvertebrates:
Fish:
Overall Assessment:
Class BWW1- Continuous DO Monitoring:
Class HH - No Data