Iowa DNR
Iowa DNR

ADBNet

Water Quality Assessments
Impaired Waters List

Camp Creek IA 04-LDM-1070

mouth (S7 T77N R21W Marion Co.) to confluence with unnamed tributary in S14 T79N R22W Polk Co.

This is a DRAFT assessment
Draft assessments may change without notice
Overall IR
4 - Water is impaired or threatened and a TMDL has been completed or is not needed.
Trend
Stable
Current Phase
Public Comment
Created
10/27/2025 3:09:53 PM by
Updated
2/11/2026 1:06:41 PM by
Use Support
Class A1
Recreation - Primary contact
Not Assessed
Class BWW2
Aquatic Life - Warm Water Type 2
Not Supported
Support Level
Not Supported
Impairment Code
4a - Pollutant-caused impairment. TMDL has been completed.
Cause Magnitude
Moderate
303(d) Listing Status
Continuing
Source
Unknown: Source Unknown
Source Confidence
Low
Cycle Added
2006
Impairment Rationale
Low Biotic Index
Data Source
Biological monitoring: Iowa DNR WQMA
Support Level
Not Supported
Impairment Code
4a - Pollutant-caused impairment. TMDL has been completed.
Cause Magnitude
Moderate
303(d) Listing Status
Continuing
Source
Agriculture
Source Confidence
N/A
Cycle Added
2006
Impairment Rationale
Low Biotic Index
Data Source
Biological monitoring: Iowa DNR WQMA
Support Level
Not Supported
Impairment Code
4a - Pollutant-caused impairment. TMDL has been completed.
Cause Magnitude
High
303(d) Listing Status
Continuing
Source
Agriculture
Source Confidence
N/A
Cycle Added
2006
Impairment Rationale
Low Biotic Index
Data Source
Biological monitoring: Iowa DNR WQMA
Impairment Code
3b - Use potentially impaired based on an evaluated assessment.
Cause Magnitude
Moderate
303(d) Listing Status
Continuing
Source
Spills/Dumping: Accidental release/spill
Source Confidence
N/A
Cycle Added
2020
Impairment Rationale
Potential Impairment
Data Source
Fish kill investigation: Iowa DNR
No delistings for this assessment cycle.
Documentation
Assessment Summary

The Class BWW2 use was assessed as "not supported" based on biological sampling data. All other designated uses were "not assessed." Note: A TMDL for siltation, nutrients and low fish index scores in this segment was approved by EPA in 2005. Because the Section 303(d) impairments identified for the 2006 assessment/listing cycle are believed addressed by the TMDL, those impairments were placed into IR Category 4a.

Assessment Explanation

Data Sources:

Data Source

Data Source ID

Data Type

Data Age

Site ID

Site Name

Site Description

PCCB

29

WQ

CY 2022-2024

99990219

Camp Creek

PCCB

29

WQ

CY 2022-2024

99990288

Camp Creek

PCCB

29

WQ

CY 2022-2024

99990237

Camp Creek

PCCB

29

WQ

CY 2022-2024

99990240

Camp Creek

Iowa DNR

6

BIO

See Below

245

Camp Creek

Mitchellville – TMDL #54

Iowa DNR

6

BIO

See Below

529

Camp Creek

Runnells – TMDL #53

Iowa DNR

6

BIO

See Below

530

Camp Creek

Thomas Mitchell Park - Altoona


Presumptive Class A1 - No Data

Class BWW2 - 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

99990219

29

Chloride

6 / 3

13.77

280.13

105.2

NA

0 / 0

3

NO

EVALUATED

FULL

99990288

29

Chloride

6 / 3

27.44

101.07

56.21

NA

0 / 0

3

NO

EVALUATED

FULL

99990219

29

Sulfate

6 / 3

9.51

43.15

26.83

0

NA / NA

3

NO

EVALUATED

FULL

99990288

29

Sulfate

6 / 3

21.18

54.83

31.35

0

NA / NA

3

NO

EVALUATED

FULL

99990219

29

Temperature

60 / 3

-1.11

25

11.296

0

NA / NA

10

NO

MONITORED

FULL

99990237

29

Temperature

52 / 3

-1.11

25.56

12.735

0

NA / NA

9

NO

MONITORED

FULL

99990240

29

Temperature

63 / 3

-1.11

25

10.52

0

NA / NA

10

NO

MONITORED

FULL

99990288

29

Temperature

6 / 3

14.44

23.89

17.778

0

NA / NA

3

NO

EVALUATED

FULL


Class BWW2 - Biological Sampling:

Benthic Macroinvertebrates:

BioNet Site ID

Date

Drainage Area (mi2)

Ecoregion

Major Drainage

BM Sample Gear

BMIBI score

BMIBI Class

BMIBI BIT

BMIBI Pass/Fail

530

9/9/09

10

47b

MS

Hess

59

Good

62

Fail

245

9/8/09

18

47f

MS

Hess

59

Good

51

Pass

529

9/8/09

32

47f

MS

Art Sub

68

Good

51

Pass


Fish:

BioNet Site ID

Date

Drainage Area (mi2)

Ecoregion

Major Drainage

Riffle Stream?

FIBI score

FIBI Class

FIBI BIT

FIBI Pass/Fail

530

9/9/09

10

47b

MS

Yes

32

Fair

53

Fail

245

9/9/09

18

47f

MS

NA

39

Fair

36

Pass

529

9/8/09

32

47f

MS

NA

31

Fair

36

Fail


Overall:

Community

Assessment Type

Assessment Result

Support Level

IR Category

Reason

Benthic Macroinvertebrates

Evaluated

Pass (2/3)

Full

Fish

Evaluated

Fail (1/3)

Not

Assessment was evaluated because it included samples

Overall

Evaluated

Fail

Not

4a

not collected in a recent five-year period.


Class BWW2 – Fish kill Assessment:


The Class BWW2 aquatic life use assessment based on the 2018 fish kill initially placed this segment in Category 4d. The fish kill was caused by a “pollutant” or was suspected to be caused by a “pollutant”; therefore, the Class BWW2 use was considered impaired. However, because restitution for the fish killed was received, the Class BWW2 use was placed in Category 4d (impaired but TMDL not required). DNR feels that (1) TMDLs should not be required for a fish kill caused by a one-time illegal or unauthorized release of a pollutant where enforcement action was taken and (2) enforcement action is more appropriate and effective for addressing a spill-related impairment than the TMDL process. Based on DNR IR methodology, the fish kill is now greater than five years old (2023); therefore, this BWW2 fish kill assessment was moved from Category 4d to Category 3b.


Details about the 2018 fish kill can be found here: https://programs.iowadnr.gov/fishkill/Events/930

Monitoring and Methods
Assessment Key Dates
9/9/2009
Biological Monitoring
9/8/2009
Biological Monitoring
7/25/2018
Fish Kill
8/17/2005
TMDL Completed
3/8/2022
Monitoring Start
12/19/2024
Monitoring End
Methods
120
Surveys of fish and game biologists/other professionals
140
Incidence of spills and/or fish kills
150
Monitoring data more than 5 years old
315
Regional reference site approach
320
Benthic macroinvertebrate surveys
330
Fish surveys
860
Other Agencies/Organizations provided monitoring data