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TMDL Document for TMDL FOR SILTATION AND HABITAT ALTERATION IN THE FT. LOUDOUN LAKE WATERSHED (HUC 06010201)

TMDL ID: 22723 TMDL Name: TMDL FOR SILTATION AND HABITAT ALTERATION IN THE FT. LOUDOUN LAKE WATERSHED (HUC 06010201)
State/Tribe: Tennessee TMDL Date: 01/27/2006
EPA Action: EPA Approved

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TMDL Pollutant: Siltation

Total Waste Load Allocation:      Total Load Allocation:
Explicit Margin Of Safety:      Implicit Margin Of Safety: Y
Units for Total Waste Load Allocation and Total Load Allocation:      TMDL Pollutant Source Type: Point/Nonpoint Source
TMDL End Point: GENERAL ANALYSIS METHODOLOGY: ¿ ANALYSIS PERFORMED USING THE WATERSHED CHARACTERIZATION SYSTEM SEDIMENT TOOL (BASED ON UNIVERSAL SOIL LOSS EQUATION) APPLIED TO IMPAIRED HUC-12 SUBWATERSHED AREAS TO CALCULATE EXISTING SEDIMENT LOADS. ¿ TARGET SEDIMENT LOADS (LBS/ACRE/YEAR) ARE BASED ON THE AVERAGE ANNUAL SEDIMENT LOADS FROM BIOLOGICALLY HEALTHY WATERSHEDS (LEVEL IV ECOREGION REFERENCE SITES). ¿ TMDLS ARE EXPRESSED AS THE PERCENT REDUCTION IN AVERAGE ANNUAL SEDIMENT LOAD REQUIRED FOR A SUBWATERSHED CONTAINING IMPAIRED WATERBODIES RELATIVE TO THE APPROPRIATE TARGET LOAD. ¿ 5% OF SUBWATERSHED TARGET LOADS ARE RESERVED TO ACCOUNT FOR WLAS FOR READY MIXED CONCRETE FACILITIES (RMCFS) AND REGULATED MINING SITES. MOST LOADING FROM THESE SOURCES IS SMALL COMPARED TO TOTAL LOADING. ¿ SINCE THE TSS OF STP DISCHARGES IS GENERALLY COMPOSED OF PRIMARILY ORGANIC MATERIAL AND IS CONSIDERED TO BE DIFFERENT IN NATURE THAN THE SEDIMENTS PRODUCED FORM EROSIONAL PROCESSES, TSS DISCHARGES FROM STPS WERE NOT CONSIDERED IN THE TMDL ANALYSIS (REF.: SECTIONS 3.0 AND 6.0). ¿ WLAS FOR MUNICIPAL SEPARATE STORM SEWER SYSTEMS (MS4S) AND NPDES-REGULATED CONSTRUCTION STORM WATER DISCHARGES AND LAS FOR NONPOINT SOURCES ARE EXPRESSED AS THE PERCENT REDUCTION IN AVERAGE ANNUAL SEDIMENT LOAD REQUIRED FOR A SUBWATERSHED CONTAINING IMPAIRED WATERBODIES RELATIVE TO THE APPROPRIATE REDUCED TARGET LOAD (TARGET LOAD MINUS 5% RESERVED WLAS FOR MINING SITES AND RMCFS). CRITICAL CONDITIONS: METHODOLOGY TAKES INTO ACCOUNT ALL FLOW CONDITIONS. SEASONAL VARIATION: METHODOLOGY ADDRESSES ALL SEASONS. MARGIN OF SAFETY (MOS): IMPLICIT (CONSERVATIVE MODELING ASSUMPTIONS).

NPDES Allocation for Pollutant: Siltation
NPDES ID Other Non PCS Identification Waste Load Allocation Units
TN0066397


TN0072222


TN0072699


TNG110089


TNG110245


TNG110088


TNG110092


TNG110121


TNG110246


TNG110157


TNG110027


TNG110244


TNG110143


TN0072761


TN0071862


TN0072061


TN0072125


TN0072621


TN0003042


TN0029467


TNG110090



Listed Water Causes of Impairment for Siltation
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
TN06010201022_1000 GALLAGHER CREEK Data Unavailable 2002, 2004 Siltation
TN06010201026_0100 RODDY BRANCH Data Unavailable 2002, 2004 Siltation
TN06010201026_0200 CANEY BRANCH Data Unavailable 2002, 2004 Habitat Alterations
TN06010201026_0300 HOLLYBROOK BRANCH Waterbody Map 2004 Siltation
TN06010201026_0300 HOLLYBROOK BRANCH Waterbody Map 2002, 2004 Riparian Habitat Alteration
TN06010201026_0400 PISTOL CREEK Data Unavailable 2002, 2004 Siltation
TN06010201026_0410 SPRINGFIELD BRANCH Waterbody Map 2002, 2004 Siltation
TN06010201026_0420 BROWN CREEK Waterbody Map 2004 Siltation, Riparian Habitat Alteration
TN06010201026_0430 LAUREL BANK BRANCH Data Unavailable 2004 Siltation
TN06010201026_0500 RUSSELL BRANCH Waterbody Map 2002, 2004 Siltation
TN06010201026_2000 LITTLE RIVER Data Unavailable 2004 Riparian Habitat Alteration, Siltation
TN06010201027_0300 ROCKY BRANCH Waterbody Map 2004 Siltation, Riparian Habitat Alteration
TN06010201027_0400 PEPPERMINT BRANCH Waterbody Map 2004 Siltation
TN06010201028_0100 SPICEWOOD BRANCH Data Unavailable 2004 Siltation
TN06010201028_0300 SOUTH FORK CROOKED CREEK Data Unavailable 2004 Siltation, Riparian Habitat Alteration
TN06010201028_0500 FLAG BRANCH Waterbody Map 2004 Riparian Habitat Alteration, Siltation
TN06010201028_1000 CROOKED CREEK Data Unavailable 2002, 2004 Siltation
TN06010201032_0810 TIPTON BRANCH Data Unavailable 2004 Siltation, Riparian Habitat Alteration
TN06010201033_0400 SOUTH FORK ELLEJOY CREEK Data Unavailable 2004 Riparian Habitat Alteration
TN06010201033_0500 CARTER BRANCH Data Unavailable 2004 Riparian Habitat Alteration
TN06010201033_2000 ELLEJOY CREEK Waterbody Map 2004 Siltation
TN06010201034_0200 WILDWOOD BRANCH Data Unavailable 2004 Riparian Habitat Alteration
TN06010201037_1000 LITTLE TURKEY CREEK Data Unavailable 2002, 2004 Siltation
TN06010201066_0100 CASTEEL BRANCH Data Unavailable 2004 Siltation
TN06010201066_0200 TWIN BRANCH Data Unavailable 2004 Riparian Habitat Alteration, Siltation
TN06010201066_0500 MCCALL BRANCH Data Unavailable 2004 Siltation
TN06010201066_1000 STOCK CREEK Data Unavailable 2004 Siltation, Habitat Alterations
TN06010201067_1000 THIRD CREEK Waterbody Map 2002, 2004 Siltation, Other Habitat Alteration(s)
TN06010201080_0100 WHITES CREEK Waterbody Map 2002, 2004 Other Habitat Alteration(s)
TN06010201080_1000 FIRST CREEK Waterbody Map 2002, 2004 Siltation, Other Habitat Alteration(s)
TN06010201083_1000 FLOYD CREEK Data Unavailable 2002, 2004 Siltation
TN06010201097_1000 SECOND CREEK Waterbody Map 2002, 2004 Other Habitat Alteration(s), Siltation
TN06010201340_1000 TURKEY CREEK Waterbody Map 2004 Siltation
TN06010201697_1000 FOURTH CREEK Data Unavailable 2004 Habitat Alterations
TN06010201719_1000 WILLIAMS CREEK Data Unavailable 2004 Other Habitat Alteration(s)
TN06010201721_1000 BAKER CREEK Waterbody Map 2004 Other Habitat Alteration(s)
TN06010201723_1000 GOOSE CREEK Waterbody Map 2004 Siltation, Other Habitat Alteration(s)
TN06010201983_1000 POLECAT CREEK Data Unavailable 2004 Riparian Habitat Alteration, Siltation
TN060102011015_1000 CLOYD CREEK Data Unavailable 2002, 2004 Siltation, Habitat Alterations
TN060102011330_2000 SINKING CREEK Data Unavailable 2004 Riparian Habitat Alteration, Siltation

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