Eagle Creek IA 04-UDM-1267
DD 9->L Eagle Cr S9T91NR25W Wright Co
- Cycle
- 2016
- Release Status
- Final
- Overall IR
- 4 - Water is impaired or threatened and a TMDL has been completed or is not needed.
- Trend
- Unknown
- Created
- 11/3/2016 9:59:10 AM
- Updated
- 11/3/2016 9:59:10 AM
The presumptive Class A1 (primary contact recreation) uses remain "not assessed" (IR 3a) due to a lack of information upon which to base an assessment. The presumptive Class B(WW-1) aquatic life uses remain assessed (monitored) as "partially supported" (IR 4d) based on the results of a fish kill investigation in August 2008.
A fish kill occurred on this stream reach on August 1, 2008. The kill affected 4.17 miles of Little Eagle Creek, Eagle Creek, and an Unnamed Tributary to Little Eagle Creek, Wright County near Clarion. The kill was caused by a discharge of liquid fertilizer. An estimated 27,109 fish were killed. The party responsible for the kill was identified, and restitution was sought. According to IDNR’s assessment/listing methodology, the occurrence of a single pollutant-caused fish kill, or a fish kill of unknown origin, on a waterbody or waterbody reach during the most recent assessment period indicates a severe stress to the aquatic community and suggests that the aquatic life uses should be assessed as “impaired.” If a cause of the kill is identified, and the cause is either known, or suspected, to be a “pollutant,” the assessment type is considered “monitored” and the affected waterbody is a candidate for Section 303(d) listing. If, however, a consent order has been issued to the party responsible for the kill and monetary restitution has been sought for the fish killed, the affected waterbody will be placed in IR Category 4d (impaired but TMDL not required). IDNR feels that (1) TMDLs should not be required for kills caused by a one-time illegal or unauthorized release of manure or other toxic substance where enforcement actions were taken and (2) enforcement action is more appropriate, efficient, and effective for addressing a spill-related impairment than is the TMDL process. Thus, this assessment segment was placed in Category 4d of Iowa’s 2010 Integrated Report and remains in IR Category 4d.