[Federal Register Volume 77, Number 99 (Tuesday, May 22, 2012)]
[Notices]
[Page 30280]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2012-12360]


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ENVIRONMENTAL PROTECTION AGENCY

[FRL9675-2]


Clean Water Act Section 303(d): Withdrawal of Nine Total Maximum 
Daily Loads (TMDLs)

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of Withdrawal of Nine TMDLs.

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SUMMARY: The EPA hereby withdraws nine final Total Maximum Daily Loads 
(TMDLs) for Chloride, Sulfate, and Total Dissolved Solids (TDS) for the 
Bayou de L'Outre Watershed in Arkansas. The EPA withdraws the Bayou de 
L'Outre TMDLs due to the discovery of inconsistencies in the values 
used to derive the flow and load duration curves, resulting in the 
calculation of TMDLs which do not accurately reflect the loading 
capacity of the segments. This action does not affect seven other final 
TMDLs published under the same Federal Register notice (see 76 FR 
52947) which pertain to segments 08040203-010, 08040204-006, and 
08040206-015, -016, -716, -816, -916. The Agency hereby withdraws the 
final TMDLs pertaining to segments 08040202-006, -007, and -008 with 
respect to Chlorides, Sulfates and TDS.
    Public Participation: EPA received five comment letters from 
representatives of Clean Harbors Environmental Services, Clean Harbors 
Environmental Services--El Dorado, El Dorado Water Utility, Great Lakes 
Chemical Corporation--Chemtura, and Lion Oil Company in support of the 
withdrawal of nine TMDLs pertaining to Bayou de L'Outre. The Agency did 
not receive any adverse comments relating to the withdrawal action.

SUPPLEMENTARY INFORMATION: The TMDLs were developed under EPA Contract 
Number 68-C-02-108. The Federal Register notice of availability, 
seeking public comments on the draft TMDLs, was published on December 
17, 2007 (see 72 FR 71409). Public comments were received by January 
16, 2008, and a response to each comment was provided. The Federal 
Register notice of availability for the final TMDLs was published on 
August 24, 2011 (see 76 FR 52947). The nine pollutant pairs for Bayou 
de L'Outre subject to withdrawal are as follows.

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         Segment (Reach)            Waterbody name         Pollutant
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08040202-006....................  Bayou de L'Outre..  Chloride, Sulfate,
                                                       TDS.
08040202-007....................  Bayou de L'Outre..  Chloride, Sulfate,
                                                       TDS.
08040202-008....................  Bayou de L'Outre..  Chloride, Sulfate,
                                                       TDS.
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    The 2008 Arkansas Clean Water Act (CWA) Section 303(d) list of 
impaired waters is the current EPA approved list, and includes the 
three Bayou de L'Outre segments addressed by this action. This action 
does not affect the listing of the aforementioned segments.

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.

    Dated: May 9, 2012.
William K. Honker,
Acting Director, Water Quality Protection Division, EPA Region 6
[FR Doc. 2012-12360 Filed 5-21-12; 8:45 am]
BILLING CODE 6560-50-P