Total Maximum Daily Load Approved for Pond Creek Watershed

The U.S. Environmental Protection Agency approved its review of a Total Maximum Daily Load (TMDL) report for E coli, pH, Cadmium, Copper, Iron, Lead, Nickel and Zinc, 54 Pollutant-Waterbody Cominations on 25 stream segments in the Pond Creek Watershed in early Feb.

You can find the link to the entire TMDL report here.

Data was collected for nearly three years, while the report was written over the course of 2016.

Total Maximum Daily Loads divide up the amount of pollutant that is allowed to be released in the watershed among the users of the land.

These different land users can include businesses, factories, sewage treatment plants, towns, farms and homeowners. Some land users are required to have a permit to release polluted water in the watershed.

All other user activities can cause pollutants that runoff into the stream during storms; these are runoff pollution sources. The calculation of the maximum amount of pollutant that can be released from point sources to a stream or lake so it will still meet its uses is called the Wasteload Allocation.

The calculation of the maximum amount of pollutant from runoff that can be released to a stream or lake so it will still meet its uses is called the Load Allocation. Before the maximum amount of point source pollutant (Wasteload Allocation) and runoff pollutant (Load Allocation) are added together and finalized, a small amount is subtracted from each to allow for any unknown information and potential errors. This amount is called the Margin of Safety. To summarize, the TMDL is made up of the Margin of Safety, the Wasteload Allocation and the Load Allocation.

For more information on water quality all over the state, click here.

 

 

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