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Notice

Clean Water Act Section 303(d): Final Agency Action on 56 Total Maximum Daily Loads (TMDLs)

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AGENCY:

Environmental Protection Agency (EPA).

ACTION:

Notice of availability.

SUMMARY:

This notice announces final agency action on 56 TMDLs prepared by EPA Region 6 for waters listed in Louisiana's Red, Sabine, and the Terrebonne Basins, under section 303(d) of the Clean Water Act (CWA). Documents from the administrative record file for the 56 TMDLs, including the TMDL calculations and responses to comments, may be viewed at http://www.epa.gov/​earth1r6/​6wq/​npdes/​tmdl/​index.htm. The administrative record file may be examined by calling or writing Ms. Diane Smith at the address below. Please contact Ms. Smith to schedule an inspection.

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FOR FURTHER INFORMATION CONTACT:

Diane Smith, Environmental Protection Specialist, Water Quality Protection Division, U.S. EPA Region 6, 1445 Ross Avenue, Dallas, TX 75202-2733, (214) 665-2145.

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SUPPLEMENTARY INFORMATION:

In 1996, two Louisiana environmental groups, the Sierra Club and Louisiana Environmental Action Network (plaintiffs), filed a lawsuit in Federal Court against the EPA, styled Sierra Club, et al. v. Clifford et al., No. 96-0527, (E.D. La.). Among other claims, plaintiffs alleged that EPA failed to establish Louisiana TMDLs in a timely manner. EPA established 43 of these TMDLs pursuant to a consent decree entered in this lawsuit.

EPA Takes Final Agency Action on 56 TMDLs

By this notice EPA is taking final agency action on the following 56 TMDLs for waters located within the Louisiana river basins:

SubsegmentWaterbody namePollutant
100404Cypress Bayou ReservoirDissolved Oxygen.
100405Black Bayou (including Black Bayou Reservoir)Dissolved Oxygen.
100406Flat River—Headwaters to Loggy BayouNutrients and Dissolved Oxygen.
100501Bayou Dorcheat—Arkansas State Line to Lake Bistineau (scenic)Dissolved Oxygen and Mercury.
100601Bayou Pierre—Headwaters to Sawing LakeNutrients and Dissolved Oxygen.
100602Boggy Bayou—Headwaters to Wallace LakeNutrients and Dissolved Oxygen.
100702Black Lake Bayou—Webster-Bienville Parish LineDissolved Oxygen.
100703Black Lake and Clear LakeDissolved Oxygen.
100803Saline Bayou—From Saline Lake to Red RiverDissolved Oxygen.
101301Rigolette Bayou—Headwaters to Red RiverDissolved Oxygen.
101302Iatt LakeDissolved Oxygen.
101604Lake ConcordiaDissolved Oxygen.
110401Bayou Toro—Headwaters to LA Hwy. 473Dissolved Oxygen.
120102Bayou PoydrasNutrients and Dissolved Oxygen.
120103Bayou ChoctawNutrients, Nitrogen, Phosphorus, and Dissolved Oxygen.
120105Chamberlin CanalNutrients, Nitrogen, Phosphorus, and Dissolved Oxygen.
120106Bayou Plaquemine—Plaquemine Lock to Intracoastal WaterwayNutrients and Dissolved Oxygen.
120107Upper Grand River and Lower Flat River—Headwaters to Intracoastal WaterwayDissolved Oxygen.
120109Intracoastal Waterway—Morgan City to Port Allen Route—Port Allen Locks to Bayou Sorrel LocksNutrients and Dissolved Oxygen.
120110Bayou Cholpe—Headwaters to Bayou ChoctawDissolved Oxygen.
120202Bayou Black—Intracoastal Waterway to HoumaNutrients and Dissolved Oxygen.
120204Lake Verret and Grassy LakeNutrients and Dissolved Oxygen.
120205Lake PalourdepH.
120206Grand Bayou and Little Grand Bayou—Headwaters to Lake VarretTSS.
120304Intracoastal Waterway—Houma to LaroseNutrients and Dissolved Oxygen.
120401Bayou Penchant—Bayou Chene to Lake PenchantDissolved Oxygen.
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120402Bayou Chene—From Intracoastal Waterway to Bayou Penchant Navigation Canal to Terrebonne BaypH.
120403Intracoastal Waterway—Bayou BoeufDissolved Oxygen.
120404Lake PenchantDissolved Oxygen.
120405Lake Hache, Lake TheriotNutrients and Dissolved Oxygen.
120406Lake de CadeNutrients and Dissolved Oxygen.
120604Bayou Blue—Intracoastal Waterway to boundary between segments 1206 and 1207Dissolved Oxygen.
120606Bayou Blue—Grand Bayou Canal to boundary between segments 1206 and 1207 (Estuarine)Nutrients and Dissolved Oxygen.
120708Lost Lake, Four League BayNutrients and Dissolved Oxygen.
120709Bayou Petite Caillou—From Houma Navigation Canal to Terrebonne BayNutrients and Dissolved Oxygen.

EPA requested the public to provide EPA with any significant data or information that might impact the 56 final TMDLs in the Federal Register Notices: Volume 72, Number 206, pages 60666 and 60667 (October 25, 2007); Volume 72, Number 209, pages 61355 and 61356 (October 30, 2007); and Volume 73, Number 22, pages 6178 and 6179 (February 1, 2008). The comments were received, and EPA's response to comments and the TMDLs may be found at http://www.epa.gov/​earth1r6/​6wq/​npdes/​tmdl/​index.htm.

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Dated: March 26, 2008.

Miguel Flores,

Director, Water Quality Protection Division, EPA Region 6.

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[FR Doc. E8-6815 Filed 4-1-08; 8:45 am]

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