Lime Creek IA 02-CED-524
mouth (SW 1/4 S4 T86N R10W Benton Co.) to confluence with unnamed tributary in S1 T87N R10W Buchanan 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
- 11/1/2023 8:12:39 AM
- Updated
- 1/31/2024 2:51:55 PM
The presumptive Class A1 use was assessed as "not supported" due to levels of indicator bacteria (E. coli) that violated state water quality criteria. The Class BWW1 use was assessed as "fully supported" based on biological sampling data and water quality 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 |
CRWQ |
23 |
WQ |
CY 2020-2022 |
99990091 |
Lime Creek |
|
Iowa DNR |
6 |
WQ |
CY 2020-2022 |
12100002 |
Lime Creek-Lime Creek Park- Brandon |
|
Iowa DNR |
6 |
BIO |
See Below |
154 |
Lime Creek |
Lime Creek Park- Brandon |
Presumptive Class A1 - Indicator Bacteria:
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 |
99990091 |
23 |
5/5/5 |
275 |
314 |
332 |
YES |
2 / NA |
4 / NA |
4 / NA |
YES |
Evaluated |
Not |
Presumptive Class A1 – pH:
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 |
12100002 |
6 |
13 / 3 |
7.6 |
8.2 |
7.8 |
0 |
4 |
NO |
Mon |
Full |
99990091 |
23 |
13 / 3 |
6.7 |
8.5 |
8 |
0 |
4 |
NO |
Mon |
Full |
Class BWW1 - Binomial Parameters:
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 |
99990091 |
23 |
Chloride |
15 / 3 |
17.7 |
30 |
22.5 |
NA |
0 / 0 |
4 |
NO |
Mon |
Full |
12100002 |
6 |
Dissolved Oxygen |
13 / 3 |
6.8 |
12.8 |
9.1 |
0 |
NA / NA |
4 |
NO |
Mon |
Full |
99990091 |
23 |
Dissolved Oxygen |
14 / 3 |
7 |
16.4 |
10 |
0 |
NA / NA |
4 |
NO |
Mon |
Full |
12100002 |
6 |
pH |
13 / 3 |
7.6 |
8.2 |
7.8 |
0 |
NA / NA |
4 |
NO |
Mon |
Full |
99990091 |
23 |
pH |
13 / 3 |
6.7 |
8.5 |
8 |
0 |
NA / NA |
4 |
NO |
Mon |
Full |
99990091 |
23 |
Sulfate |
15 / 3 |
12.8 |
20.3 |
16.5 |
0 |
NA / NA |
4 |
NO |
Mon |
Full |
12100002 |
6 |
Temperature |
13 / 3 |
6.1 |
20.8 |
15.2 |
0 |
NA / NA |
4 |
NO |
Mon |
Full |
99990091 |
23 |
Temperature |
15 / 3 |
5.5 |
27.1 |
18 |
0 |
NA / NA |
4 |
NO |
Mon |
Full |
Class BWW1 - Toxic Parameters:
Site ID |
Data Source ID |
Parameter Name |
# Samples / # Years |
Maximum Value |
Mean Value |
Median Value |
# Acute / Chronic Violations |
>1 Acute / Chronic Violation |
Assessment Type |
Support Level |
12100002 |
6 |
Ammonia |
13 / 3 |
0.07 |
0.03 |
0.02 |
0 / 0 |
NO |
Mon |
Full |
Class BWW1 - Biological Sampling:
Benthic Macroinvertebrates:
Site ID |
Date |
Drainage Area (mi2) |
Ecoregion |
Major Drainage |
BM Sample Gear |
BMIBI score |
BMIBI Class |
47c BMIBI BIT |
BMIBI Pass/Fail |
154 |
9/12/22 |
32.5 |
47c |
MS |
Hess |
68 |
Good |
70 |
Fail |
154 |
7/26/22 |
32.5 |
47c |
MS |
Hess |
80 |
Excellent |
70 |
Pass |
154 |
7/19/21 |
32.5 |
47c |
MS |
Hess |
80 |
Excellent |
70 |
Pass |
154 |
9/23/20 |
32.5 |
47c |
MS |
Hess |
75 |
Good |
70 |
Pass |
154 |
7/22/19 |
32.5 |
47c |
MS |
Hess |
72 |
Good |
70 |
Pass |
154 |
8/2/18 |
32.5 |
47c |
MS |
Hess |
83 |
Excellent |
70 |
Pass |
Fish:
Site ID |
Date |
Drainage Area (mi2) |
Ecoregion |
Major Drainage |
Riffle Stream? |
FIBI score |
FIBI Class |
47c FIBI BIT |
FIBI Pass/Fail |
154 |
9/12/22 |
32.5 |
47c |
MS |
Yes |
87 |
Excellent |
65 |
Pass |
154 |
7/19/21 |
32.5 |
47c |
MS |
Yes |
81 |
Excellent |
65 |
Pass |
154 |
9/23/20 |
32.5 |
47c |
MS |
Yes |
90 |
Excellent |
65 |
Pass |
154 |
7/22/19 |
32.5 |
47c |
MS |
Yes |
90 |
Excellent |
65 |
Pass |
154 |
8/2/18 |
32.5 |
47c |
MS |
Yes |
85 |
Excellent |
65 |
Pass |
Overall:
Community |
Assessment Type |
Assessment Result |
Support Level |
IR Category |
Reason |
Benthic Macroinvertebrates |
Monitored |
Pass (5/6) |
Full |
||
Fish |
Monitored |
Pass (5/5) |
Full |
Assessment was monitored because the assessment |
|
Overall |
Monitored |
Pass |
Full |
1 |
used multiple samples collected in the last five years. |
Class BWW1- Continuous DO Monitoring:
Site ID |
Data Source ID |
# Days Monitoring (2021) |
DO Criteria Type |
# 2022 violations / Violations needed for impairment |
Violates Annual Significantly >10% Rule? |
Assessment Type |
Support Level |
24 hr |
2/25 |
No |
|||||
12100002 |
6 |
191 |
16 hr |
0/25 |
No |
Evaluated |
Full |
Class HH – No Data