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TMDL Document for PONCA CREEK - FROM HIGHWAY 183 TO THE NEBRASKA BORDER

TMDL ID: 39029 TMDL Name: PONCA CREEK - FROM HIGHWAY 183 TO THE NEBRASKA BORDER
State/Tribe: South Dakota TMDL Date: 08/02/2010
EPA Action: EPA Approved Comments: THE LOADS SHOWN REPRESENT THE LOADS DURING THE LOW FLOW REGIME AS DEFINED BY THE LOAD DURATION CURVE FOR PONCA CREEK (SEE FIGURE 4 OF THE TMDL). THE LOW FLOWS ARE WHEN THE LARGEST DIFFERENCES OCCUR BETWEEN THE EXISTING LOAD AND THE TARGET LOAD, THEREFORE THE GREATEST LOAD REDUCTION IS NEEDED TO MEET THE WATER QUALITY STANDARDS.

TMDL Documents

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Document Type Comments
TMDL Document  


TMDL Pollutant: Fecal Coliform

Total Waste Load Allocation: 8320000000      Total Load Allocation: 4260
Explicit Margin Of Safety: 9430000000 CFU/DAY      Implicit Margin Of Safety: N
Units for Total Waste Load Allocation and Total Load Allocation: CFU/DAY      TMDL Pollutant Source Type: Point/Nonpoint Source
TMDL End Point: < = 1000 CFU/100 ML 30-DAY GEOMETRIC MEAN; < = 2000 CFU/100ML SINGLE SAMPLE MAXIMUM

NPDES Allocation for Pollutant: Fecal Coliform
NPDES ID Other Non PCS Identification Waste Load Allocation Units
SD0022179

4160000000
CFU/DAY
SD0023230

4160000000
CFU/DAY


Listed Water Causes of Impairment for Fecal Coliform
Click on the underlined Waterbody ID for a Waterbody Report. Click on the underlined "Waterbody Map" literal for a map of the Assessment Unit.
Waterbody ID Waterbody Name Map Cycles Listed Cause(s) of Impairment Addressed
SD-MI-R-PONCA_01 Ponca Creek Waterbody Map 2008, 2010 Fecal Coliform

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