Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Bear Creek IA 01-MAQ-34

from Beers Cr. (Jackson Co.) to confluence with unnamed tributary in W1/2 S28T84NR2W Jones Co.

Cycle
2024
Release Status
Final
Overall IR
2 - Some of the designated uses are met but there is insufficient data to determine if remaining designated uses are met.
Trend
Unknown
Created
11/1/2023 8:12:47 AM
Updated
12/4/2023 10:19:42 AM
Use Support
Class A1
Recreation - Primary contact
Not Assessed
Class BWW2
Aquatic Life - Warm Water Type 2
Fully Supported
Impairment Delistings
No delistings for this assessment cycle.
Documentation
Assessment Summary

The Class BWW2 use was assessed as "fully supported" based on biological sampling data. All other designated uses were "not assessed."

Assessment Explanation

Data Sources:

Data Source

Data Source ID

Data Type

Data Age

Site ID

Site Name

Site Description

Iowa DNR

6

BIO

See Below

105

Bear Creek

Eden Valley County Park - Baldwin


Presumptive Class A1 – No Data

Class BWW2 - Biological Sampling:

Benthic Macroinvertebrates:

BioNet Site ID

Date

Drainage Area (mi2)

Ecoregion

Major Drainage

BM Sample Gear

BMIBI score

BMIBI Class

47f BMIBI BIT

BMIBI Pass/Fail

105

9/22/22

69.3

47f

MS

Art Sub

63

Good

51

Pass

105

9/1/21

69.3

47f

MS

Hess

75

Good

51

Pass

105

7/20/20

69.3

47f

MS

Hess

71

Good

51

Pass

105

8/12/19

69.3

47f

MS

Hess

67

Good

51

Pass


Fish:

BioNet Site ID

Date

Drainage Area (mi2)

Ecoregion

Major Drainage

Riffle Stream?

FIBI score

FIBI Class

47f FIBI BIT

FIBI Pass/Fail

105

9/22/22

69.3

47f

MS

NA

77

Excellent

44

Pass

105

9/1/21

69.3

47f

MS

NA

76

Excellent

44

Pass

105

7/20/20

69.3

47f

MS

NA

69

Good

44

Pass

105

8/12/19

69.3

47f

MS

NA

66

Good

44

Pass


Overall Assessment:

Community

Assessment Type

Assessment Result

Support Level

IR Category

Reason

Benthic Macroinvertebrates

Monitored

Pass (4/4)

Full

Fish

Monitored

Pass (4/4)

Full

Assessment was monitored because multiple samples

Overall

Monitored

Pass

Full

1

collected in the last five years were used for the assessment.

Monitoring and Methods
Assessment Key Dates
8/12/2019
Biological Monitoring
7/20/2020
Biological Monitoring
9/1/2021
Biological Monitoring
9/22/2022
Biological Monitoring
Methods
315
Regional reference site approach
320
Benthic macroinvertebrate surveys
330
Fish surveys