Cedar Creek IA 04-RAC-1156
trib-Greene-> E & W Cedar Cr Calhoun 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
- Stable
- Created
- 10/27/2025 3:08:58 PM
- Updated
- 1/14/2026 8:18:49 AM
The Class BWW2 use was assessed as "fully supported" based on biological sampling data and continuous dissolved oxygen monitoring data. 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 BIO/WQ See
Below 302 Cedar
Creek Lohrville – University Park 40 –
REMAP #34 Class BWW2 - Biological Sampling: Benthic Macroinvertebrates: Site
ID Date Drainage
Area (mi2) Ecoregion Major
Drainage BM
Sample Gear BMIBI
score BMIBI
Class 47b
BMIBI BIT BMIBI
Pass/Fail 302 8/13/19 114.6 47b MS Floating
Art Sub 63 Good 62 Pass Fish: Site
ID Date Drainage
Area (mi2) Ecoregion Major
Drainage Riffle
Stream? FIBI
score FIBI
Class 47b
FIBI BIT FIBI
Pass/Fail 302 8/13/19 114.6 47b MS No 44 Fair 32 Pass Overall: Community Assessment
Type Assessment
Result Support
Level IR
Category Reason Benthic Macroinvertebrates Evaluated Pass
(1/1) Full Fish Evaluated Pass
(1/1) Full 1 Assessment was evaluated because it was based on a single
sample. Overall Evaluated Pass Full Site ID Data Source ID # Days Monitoring (2018/2019) DO Criteria Type # 2018 violations
/ Violations needed for impairment # 2019 violations /
Violations needed for impairment Violates Annual Significantly >10% Rule? Assessment Type Support Level
24 hr 0/4 0/4 No
302 6 16/17 16 hr 0/4 0/4 No Monitored Full
Presumptive Class A1 – No Data
Class
BWW2- Continuous DO Monitoring: