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Clean Water Act Section 303(d): Final Agency Action on 45 Total Maximum Daily Loads (TMDLs)

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Environmental Protection Agency (EPA).


Notice of availability.


This notice announces final agency action on 45 TMDLs prepared by EPA Region 6 for waters listed in Louisiana's Mermentau and Vermilion/Teche river basins, under section 303(d) of the Clean Water Act (CWA). EPA evaluated these waters and prepared the 45 TMDLs in response to the lawsuit styled Sierra Club, et al. v. Clifford et al., No. 96-0527, (E.D. La.). Documents from the administrative record files for the final 45 TMDLs, including TMDL calculations and responses to comments, may be viewed at​region6/​water/​tmdl.htm. The administrative record files may be obtained by calling or writing Ms. Caldwell at the above address. Please contact Ms. Caldwell to schedule an inspection.

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Ellen Caldwell at (214) 665-7513.

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In 1996, two Louisiana environmental groups, the Sierra Club and Louisiana Environmental Action Network (plaintiffs), filed a lawsuit in Federal Court against the United States Environmental Protection Agency (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 Takes Final Agency Action on 45 TMDLs

By this notice EPA is taking a final agency action on the following 45 TMDLs for waters located within the Mermentau and Vermilion/Teche basins:

SubsegmentWaterbody NamePollutant
050103Bayou MalletAmmonia.
050402Lake Arthur and Lower Mermentau River to Grand LakeAmmonia.
050103Bayou MalletNutrients.
050402Lake Arthur and Lower Mermentau River to Grand LakeNutrients.
050701Grand LakeNutrients.
050702Intracoastal WaterwayNutrients.
050901Mermentau River Basin Coastal Bays and Gulf Waters to State 3-mile limitNutrients.
050103Bayou MalletOrganic enrichment/low DO.
050402Lake Arthur and Lower MermentauOrganic enrichment/low DO.
050602Intracoastal WaterwayOrganic enrichment/low DO.
050603Bayou Chene—includes Bayou Grand MaraisOrganic enrichment/low DO.
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050701Grand LakeOrganic enrichment/low DO.
050702Intracoastal WaterwayOrganic enrichment/low DO.
050802Big Constance Lake and Associated Waterbodies (Estuarine)Organic enrichment/low DO.
050901Mermentau River Basin Coastal Bays and Gulf Waters to State 3-mile limitOrganic enrichment/low DO.
060207Bayou des Glaises Diversion ChannelNutrients.
060210Bayou CarronNutrients.
060601Charenton CanalNutrients.
060701Tete BayouNutrients.
060803Vermilion RiverNutrients.
060901Bayou Petite AnseNutrients.
060903Bayou TigreNutrients.
060904Vermilion B890 Basin New Iberia Southern Drainage CanalNutrients.
060907Franklin CanalNutrients.
060909Lake PeigneurNutrients.
060911Vermilion-Teche River Basin—(Dugas Canal)Nutrients.
061103Freshwater Bayou CanalNutrients.
060207Bayou des Glaises Diversion ChannelOrganic enrichment/low DO.
060209Irish Ditch/Big Bayou—unnamed Ditch to Irish DitchOrganic enrichment/low DO.
060210Bayou CarronOrganic enrichment/low DO.
060211West Atchafalaya Borrow Pit CanalOrganic enrichment/low DO.
060212Chatlin Lake CanalOrganic enrichment/low DO.
060601Charenton CanalOrganic enrichment/low DO.
060701Tete BayouOrganic enrichment/low DO.
060703Bayou du PortageOrganic enrichment/low DO.
060803Vermilion River CutoffOrganic enrichment/low DO.
060901Bayou Petite AnseOrganic enrichment/low DO.
060903Bayou TigreOrganic enrichment/low DO.
060904Vermilion River B890 Basin New Iberia Southern Drainage CanalOrganic enrichment/low DO.
060907Franklin CanalOrganic enrichment/low DO.
060908Spanish LakeOrganic enrichment/low DO.
060909Lake PeigneurOrganic enrichment/low DO.
060911Vermilion-Teche River Basin—(Dugas Canal)Organic enrichment/low DO.
061001West Cote Blanche BayOrganic enrichment/low DO.
061103Freshwater Bayou CanalOrganic enrichment/low DO.

EPA requested the public to provide EPA with any significant data or information that may impact the 45 TMDLs at Federal Register Notice: Volume 66, Number 199, pages 52403-52404 (October 15, 2001). The comments received and EPA's response to comments may be found at​region6/​water/​tmdl.htm.

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Dated: April 22, 2002.

Sam Becker,

Acting Director, Water Quality Protection Division, Region 6.

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[FR Doc. 02-10631 Filed 4-30-02; 8:45 am]