White Breast Creek IA 04-LDM-3042
confluence with unnamed tributary (T72N R25W SEC27 W CLARKE COUNTY) to headwaters (T72N R26W Sec18 Clarke County)
Insufficient water quality information available to assess use support.
Presumptive Class A1 - No Data Presumptive Class BWW1 – Fish kill Assessment: The presumptive Class BWW1 aquatic life use assessment based on the 2019 fish kill placed this segment in Category 3b. This assessment was “evaluated” because there was a single fish kill on this segment in the last five years. Segments assessed using “evaluated” assessments are placed in Category 3b and are added to the state list of Waters In Need Of Further Investigation (WINOFI). In addition, restitution for the fish killed in this fish kill was received in 2020, but the presumptive Class BWW1 use remained placed in Category 3b. 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 IR methodology, since no additional fish kills were reported in this segment for a 5-year period (2020-2024), the Category was changed from 3b to 3a (not assessed). Details about the 2019 fish kill can be found here: https://programs.iowadnr.gov/fishkill/Events/978