Long Dick Creek IA 03-SSK-2007
N. line of S34 (SE1/4) T86N R23W Hamilton Co to headwaters in NE1/4 S8 T87N R23W Hamilton Co.
- Assessment Cycle
- 2024
- Release Status
- Pending
- Data Collection Period
- Overall IR Category
- 5 - Water is impaired or threatened and a TMDL is needed.
- Trend
- Unknown
- Created
- 12/8/2023 1:52:59 PM
- Updated
- 2/2/2024 7:11:04 AM
| Cycle Added | Class | Cause | Data Source | Rationale |
|---|---|---|---|---|
| 2006 | Class BWW1 | Fish Kill: Caused By Animal Waste | Biological monitoring: Iowa DNR fish kill follow-up | New data: recovery of fish community from pollutant-caused fish kill |
| 2014 | Class BWW1 | Fish Kill: Caused By Pesticides | Biological monitoring: Iowa DNR fish kill follow-up | New data: recovery of fish community from pollutant-caused fish kill |
The presumptive Class A1 use was assessed as "not supported" 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 historical biological sampling. However, biological sampling data collected in 2022 showed recovery of the fish community in this segment from the fish kills. Based on the 2022 fish sampling data, the 5b fish kill impairments were de-listed.
Data Sources: Data Source Data Source ID Data Type Data Age Site ID Site Name Site Description Iowa DNR 6 WQ CY 2008 – 2009 11400004 Long Dick Creek near
Ellsworth Site ldc-2 Iowa DNR 6 BIO See Below 691 Long Dick Creek Ellsworth – LDC2 Site ID Data Source ID # Samples / # Years 2008 Geometric Mean 2009 Geometric Mean Annual Geometric Mean
Violation # Violations % Violations Significantly >10%
Violations Assessment Type Support Level 11400004 6 26 / 2 369 175 Yes 15 58% Yes Evaluated Not Benthic Macroinvertebrates: BioNet Site ID Date Drainage Area (mi2) Ecoregion Major Drainage BM Sample Gear BMIBI score BMIBI Class 47b BMIBI BIT BMIBI Pass/Fail 691 10/6/08 16 47b MS Art Sub 71 Good 62 Pass BioNet Site ID Date Drainage Area (mi2) Ecoregion Major Drainage Riffle Stream? FIBI score FIBI Class 47b FIBI BIT FIBI Pass/Fail 691 10/6/08 16 47b MS Yes 24 Poor 53 Fail Community Assessment Type Assessment Result Support Level IR Category Reason Benthic
Macroinvertebrates Evaluated Pass (1/1) Full Fish Evaluated Fail (0/1) WINOFI Assessment was evaluated because the
drainage area of the Overall Evaluated Fail WINOFI 3bu site was smaller than the calibrated range. Presumptive Class BWW1
– Fish kill Assessment: BioNet Site ID Date Drainage Area (mi2) Ecoregion Major Drainage/ Thermal Fish per mile 47b REMAP 25 % fish per mile >47b REMAP 25 %
fish per mile? 2024 IR 47b expected fish taxa Fish Taxa Present % (>50% to pass) 1389 08/25/22 21.9 47b MS/WW 9810 1362 Yes (Pass) 11/12 91.6% (Pass) The presumptive
Class BWW1 use previously resided in Category 5b based on 2004 and 2011 fish
kills. This segment’s fish community was sampled in 2022 as part of the DNR
fish kill follow-up sampling program. The results from this follow-up
sampling and comparison to ecoregion averages suggest that the fish community
of this segment is similar to non-fish kill impacted streams. Based on the
fish kill follow-up sampling results, the category for the fish kill
assessment was changed from 5b to 3a (not assessed). More details about the
2011 fish kill can be found here:https://programs.iowadnr.gov/fishkill/Events/834
More details about the
2004 fish kill can be found here:https://programs.iowadnr.gov/fishkill/Events/599
Presumptive Class A1 - Indicator Bacteria: Historical
Presumptive Class BWW1 - Biological Sampling:
Fish:
Overall: