Little Wolf Creek IA 02-CED-1903
mouth (NW1/4 S5 T85N R16W Tama Co.) to headwaters (Grundy Co.)
- Cycle
- 2024
- Release Status
- Final
- Overall IR
- 3 - Insufficient data exist to determine whether any designated uses are met.
- Trend
- Unknown
- Created
- 11/1/2023 8:13:04 AM
- Updated
- 12/28/2023 11:16:09 AM
The presumptive Class A1 use was assessed as "WINOFI" due to levels of indicator bacteria (E. coli) that exceeded state water quality criteria. The presumptive Class BWW1 use was assessed as “WINOFI” based on biological sampling data.
Data Sources: Data Source Data Source ID Data Type Data Age Site ID Site
Name Site
Description CRWQ 23 WQ CY 2020-2022 99990065 Little
Wolf Creek
Iowa DNR 6 BIO See Below 421 Little
Wolf Creek Gladbrook
(REMAP #232) Site ID Data Source ID # Samples per Year (2020/ 2021/2022) 2020 Geometric Mean 2021 Geometric Mean 2022 Geometric Mean Violates Annual Geometric Mean? # 2020 SSM violations / SSM Violations needed for impairment # 2021 SSM violations / SSM Violations needed for impairment # 2022 SSM violations / SSM Violations needed for impairment Violates Annual SSM Significantly >10% Rule? Assessment Type Support Level 99990065 23 5/5/5 174 100 138 YES 2 / NA 2 / NA 2 / NA NA Eval WINOFI Site ID Data Source ID # Samples / # Years Minimum Value Maximum Value Mean Value # Violations Violations needed for impairment Violates Significantly >10% Rule? Assessment Type Support Level 99990065 23 14 / 3 7.78 8.57 8.02 0 4 NO Mon Full Site ID Data Source ID Parameter Name # Samples / # Years Minimum Value Maximum Value Mean Value # Violations # Acute / Chronic Violations Violations needed for impairment Violates Significantly >10% Rule? Assessment Type Support Level 99990065 23 Chloride 15 / 3 12.5 19.3 14.8 NA 0 / 0 4 NO Mon Full 99990065 23 Dissolved Oxygen 14 / 3 4.3 11.8 8.3 1 NA / NA 4 NO Mon Full 99990065 23 pH 14 / 3 7.78 8.57 8.02 0 NA / NA 4 NO Mon Full 99990065 23 Sulfate 15 / 3 9.4 14.6 11.9 0 NA / NA 4 NO Mon Full 99990065 23 Temperature 15 / 3 5.1 21.8 15.4 0 NA / NA 4 NO Mon Full Site ID Date Drainage Area (mi2) Ecoregion Major Drainage BM Sample Gear BMIBI score BMIBI Class 47c BMIBI BIT BMIBI Pass/Fail 421 8/12/04 22 47c MS Hess 56 Good 70 Fail Site ID Date Drainage Area (mi2) Ecoregion Major Drainage Riffle Stream? FIBI score FIBI Class 47c FIBI BIT FIBI Pass/Fail 421 8/12/04 22 47c MS Yes 48 Fair 65 Fail Community Assessment Type Assessment Result Support Level IR Category Reason Benthic
Macroinvertebrates Evaluated Fail (0/1) WINOFI Fish Evaluated Fail (0/1) WINOFI Assessment was evaluated because it was based on a single
sample and Overall Evaluated Fail WINOFI 3bu the
drainage area of the site was smaller than the calibrated range.
Presumptive Class A1 - Indicator Bacteria:
Presumptive Class A1 – pH:
Class BWW1 - Binomial Parameters:
Presumptive Class BWW1 - Biological Sampling:
Benthic Macroinvertebrates:
Fish:
Overall: