Turkey River IA 01-TRK-156
from confluence with N. Br. Turkey R. (S31 T99N R11W Howard Co.) to confluence with S. Br. Turkey R. in S2 T98N R12W Howard Co.
- Assessment Cycle
- 2024
- Release Status
- Final
- Data Collection Period
- Overall IR Category
- 5 - Water is impaired or threatened and a TMDL is needed.
- Trend
- Unknown
- Created
- 11/1/2023 8:12:46 AM
- Updated
- 12/18/2023 11:21:32 AM
The presumptive Class A1 use remains assessed as “not supported” due to levels of indicator bacteria (E. coli) that exceeded state water quality criteria. The Class BWW2 use was assessed as "fully supported" based on biological sampling data and water quality monitoring data.
Data Sources:
|
Data Source |
Data Source ID |
Data Type |
Data Age |
Site ID |
Site Name |
Site Description |
|
Iowa DNR |
6 |
WQ |
CY 2012-2014 |
15450015 |
Turkey River @ V46 |
TR90 |
|
Iowa DNR |
6 |
BIO |
See Below |
1022 |
Turkey River |
US confluence with North Fork Turkey – TK008 |
Presumptive Class A1 -
Indicator Bacteria:
|
Site ID |
Data Source ID |
# Samples / # Years |
2012 Geometric Mean |
2013 Geometric Mean |
2014 Geometric Mean |
Annual Geometric Mean Violation |
# Violations |
% Violations |
Significantly >10% Violations |
Assessment Type |
Support Level |
|
15450015 |
6 |
23 / 3 |
284 |
606 |
163 |
Yes |
14 |
61% |
Yes |
Evaluated |
Not |
Presumptive Class A1 -
pH:
|
Site ID |
Data Source ID |
# Samples / # Years |
Maximum Value |
Mean Value |
Median Value |
# Violations |
% Violations |
Significantly >10% Violations |
Assessment Type |
Support Level |
|
15450015 |
6 |
24/ 3 |
8.7 |
8 |
8 |
0 |
0% |
No |
Evaluated |
Full |
Class BWW2 -
Binomial Parameters:
|
Site ID |
Data Source ID |
Parameter Name |
# Samples / # Years |
Maximum Value |
Mean Value |
Median Value |
# Acute / Chronic Violations |
% Acute/ Chronic Violations |
Significantly >10% Violations |
Assessment Type |
Support Level |
|
15450014 |
6 |
Ammonia |
16 / 2 |
0.44 |
0.09 |
0.05 |
0 / 0 |
0% / 0% |
No |
Evaluated |
Full |
|
15450014 |
6 |
Chloride |
17 / 3 |
41 |
31.9 |
33 |
0 / 0 |
0% / 0% |
No |
Evaluated |
Full |
|
15450014 |
6 |
Dissolved oxygen |
24 / 3 |
11 |
7 |
7.5 |
NA / 2 |
NA / 8% |
No |
Evaluated |
Full |
|
15450014 |
6 |
pH |
24 / 3 |
8.7 |
8 |
8 |
0 / NA |
0% / NA |
No |
Evaluated |
Full |
|
15450014 |
6 |
Temperature |
24 / 3 |
28 |
14.7 |
14.5 |
0 / 0 |
0% / 0% |
No |
Evaluated |
Full |
Class BWW2 - Biological Sampling:
Fish:
|
Site ID |
Date |
Drainage Area (mi2) |
Ecoregion |
Major Drainage |
Riffle Stream? |
FIBI score |
FIBI Class |
47c FIBI BIT |
FIBI Pass/ Fail |
|
1022 |
8/21/19 |
28 |
47c |
MS |
Undetermined |
65 |
Good |
44 |
Pass |
|
1022 |
7/31/18 |
28 |
47c |
MS |
Undetermined |
63 |
Good |
44 |
Pass |
|
1022 |
8/7/17 |
28 |
47c |
MS |
Undetermined |
64 |
Good |
44 |
Pass |
|
1022 |
8/16/16 |
28 |
47c |
MS |
Undetermined |
71 |
Excellent |
44 |
Pass |
Overall:
|
Community |
Assessment Type |
Assessment Result |
Support Level |
IR Category |
Reason |
|
Fish |
Monitored |
Pass (4/4) |
Full |
Assessment was monitored because the assessment used multiple |
|
|
Overall |
Monitored |
Pass |
Full |
1 |
samples collected in the last five years. |