Mercury TMDLs in Region 4
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A TMDL or Total Maximum Daily Load is a calculation of the maximum amount of a pollutant that a waterbody can receive and still meet water quality standards, and an allocation of that amount to the pollutant's sources. Section 303 of the Clean Water Act establishes the water quality standards and TMDL programs. For additional general information about TMDLs, please refer to EPA's Introduction to TMDLs.
Region 4 approves section 303(d) lists of impaired waters submitted by the states. Then the Region either develops and finalizes TMDLs or approves state-submitted TMDLs for those impaired waters. TMDLs in which mercury has been listed as a pollutant have been developed for the State of Georgia and approved for the States of Mississippi and North Carolina. The mercury TMDLs listed below are organized by major watersheds in each of the three states.
Atmospheric deposition modeling of toxics (e.g., mercury) is also important for EPA's total maximum daily load (TMDL) program. TMDLs are established by EPA to ensure that water quality standards are maintained. A detailed analysis of the atmospheric deposition of mercury for a specific TMDL project is included in the following document: Analysis of the Atmospheric Deposition of Mercury to the Savannah River Watershed (PDF, 52 pp, :414 Mb) - About PDF files
For basic information about mercury, its health effects, how to handle spills and to learn what EPA is doing to reduce mercury emissions, select from the topics listed to the right or visit the national mercury home page. TMDLs in the Southeast that have recently proposed or finalized for various pollutants other than mercury are available by state.
States: Georgia | Mississippi | North Carolina
Georgia
Altamaha River Basin
- Appling, Davis and Wayne Counties: Altamaha River from Confluence of Oconee and Ocmulgee
Rivers to ITT Rayonier, and from ITT Rayonier to Phenholoway Creek (Mercury), Finalized February 28, 2002 [PDF, 17pp., 686KB] - About PDF files
- Candler, Emanuel, Tattnall and Treutlen Counties: Ohoopee River from GA Hwy 147 to confluence with Altamaha River, from Hwy 292 to Hwy 147, from Little Ohoopee River to US Highway 292, and from Neels Creek to Little Ohoopee, Sandhill Lake, Gum Swamp Creek (Mercury) Finalized February 28, 2002 [PDF, 37pp., 2.5MB] - About PDF files
Chattahoochee River Basin
- Habersham, Hall and White Counties: Chattahoochee River from Soque River to Lake Lanier (Mercury) Finalized February 2003 [PDF, 18pp., 662KB] - About PDF files
Coosa River Basin
- Dawson County: Etowah River from Clear Creek to Forsyth County Line (Mercury) Finalized February 2003 [PDF, 15pp., 277KB] - About PDF files
- Pickens County: Spring Creek (Mercury) Finalized February 2003 [PDF, 15pp., 539KB] - About PDF files
- Pickens County: Talking Rock Creek from Ga. Highway 136 to Pickens/Gilmer County Line (Mercury) Finalized February 2003 [PDF, 15pp., 554KB] - About PDF files
Flint River Basin
- Doughtery, Lee, Sumter and Terrell Counties : Kinchafoonee Creek (Mercury) Finalized February 2003 [PDF, 30pp., 1.8MB] - About PDF files
- Taylor County: Beaver Creek (Mercury) Finalized February 2003 [PDF, 30pp., 1.8MB] - About PDF files
Ochlockonee River Basin
- Colquitt, Grady and Thomas Counties: Ochlockonee River from Oquina Creek to Stateline, from State Route 37 Downstream Moultrie to Upstream CR222, and from Bridge Creek to Big Creek (Mercury) Finalized February 28, 2002 [PDF, 42pp., 2.2MB] - About PDF files
Ocmulgee River Basin
- DeKalb County: Stone Mountain Lake (Mercury) Finalized February 28, 2002 [PDF, 17pp., 578KB] - About PDF files
- Pulaski and Wilcox Counties: Jackson Lake and Ocmulgee River, Ocmulgee River from Pulaski/Wilcox County Lines to House Creek, Ocmulgee River from House Creek to Altamaha River (Mercury) Finalized February 28, 2002 [PDF, 18pp., 640KB] - About PDF files
Oconee River Basin
- Greene and Oconee Counties: Oconee River from confluence of North and Middle Oconee
Rivers to Barnett Shoals Dam, and from Barnett Shoals to Lake Oconee; Apalachee River
from Marbury Creek to Lake Oconee (Mercury) Finalized February 28, 2002 [PDF, 18pp., 710KB] - About PDF files
- Greene, Putnam and Oconee Counties: Lake Oconee (Mercury) Finalized February 28,
2002 [PDF, 20pp., 833KB] - About PDF files
- Newton County: Lake Bennett (Mercury) Finalized February 28, 2002 [PDF, 17pp., 621KB] - About PDF files
- Rockdale County: Big Haynes Reservoir (Mercury) Finalized February 2002, [PDF, 17pp., 520KB] - About PDF files
Ogeechee River Basin
- Bryan, Candler, Emanuel, Evans, Liberty and Washington Counties, Canoochee River, (Mercury) Proposed, Public Comment Period from September 1, 2004 to November 1, 2004 [PDF, 29pp., 1.0MB] - About PDF files
- Bullock, Bryan,
Burke, Chatham, Effingham, Emanuel, Glascock, Jefferson, Jenkins and
Washington Counties: Ogeechee River, (Mercury) Proposed, Public Comment
Period from September 1, 2004
to November 1, 2004 [PDF, 35pp., 1.22MB] - About PDF files
- Habersham County: Lake Yonah, (Mercury) Proposed, Public Comment Period from September 1, 2004 to November 1, 2004 [PDF, 15pp., 297KB] - About PDF files
Satilla River Basin
- Brantley, Camden, Pierce and Ware Counties: Satilla River from US Highway 84/GA Highway 38 to 6 miles downstream of Hwy 15/121,
and from 6 miles downstream of GA Highway 15 to Bullhead Bluff, Dupree Creek,
Purvis Creek, Terry Creek, Turtle River System, Gibson Creek (Mercury) Finalized February 28, 2002 [PDF, 43pp., 2.3MB] - About PDF files
St. Mary's River Basin
- Camden and Charlton Counties: North Prong St. Mary’s River from Headwaters to Cedar Creek, North Prong St. Mary’s River from Cedar Creek to South Prong St. Mary’s River, St. Mary’s River from South Prong St. Mary’s River to St. Mary’s Cut (Mercury) Finalized February 28, 2002 [PDF, 41pp., 2.14MB] - About PDF files
Savannah River Basin
- Burke, Chatham, Effingham, Elbert, Screven and Richmond Counties: Middle and Lower
Savannah River from Clarks Hill Lake Dam to Stevens Creek Dam, from Stevens Creek Dam to
US Highway 78/278, from US Highway 78/278 to Johns Landing, and from Johns Landing to
Brier Creek to Tide Gate (Mercury) Finalized Febrary 28, 2002 [PDF, 83pp., 1.5MB] - About PDF files
- Burke and Screven Counties: Brier Creek, (Mercury) Proposed, Public comment period: September 1, 2004 - January 31, 2004 [PDF, 31pp., 826KB] - About PDF files
Suwannee River Basin
- Atkinson, Berrien, Echols, Lanier, Lowndes, Tift and Turner Counties: Alapaha Watershed: Alapaha River from Sand Creek to
US Highway 129, and from US Highway 129/GA Highway 11 to Satellite, Double Run Creek, Alapahoocee River (Mercury) Finalized February 28, 2004 [PDF, 38pp., 2.10MB] - About PDF files
- Charlton, Clinch, Echols and Ware Counties: Suwanee Watershed: Suwanee River from Suwanee
Canal to Okeefenokee Swamp, and from Suwanee Canal to State Line
(Mercury) Finalized February 28, 2002 [PDF, 43pp., 2.24MB] - About PDF files
- Berrien, Brooks, Lanier and Lowndes Counties: Withlacoochee Watershed: Withlacoochee River from Headwaters to New River, from New River to Bay Branch, and from Little River to Stateline, Bay Branch to Little River, Banks Lake, Turkey Branch, (Mercury) Finalzed February 28, 2002 [PDF, 40pp., 2.18MB] - About PDF files
Mississippi
Pascagoula River Basin
- George and Jackson Counties:
Escatawpa River (Mercury), Approved June 26, 2000 [PDF, 39pp., 530KB] - About PDF files
- Lincoln, Pike and Walthall Counties:
Bogue Chitto River (Mercury), Approved December 15, 2000 [PDF, 48pp., 612KB] - About PDF files
- Attala, Choctaw and Leake Counties Counties:
Pearl River and Yockanookany River (Mercury), Approved January 2004 [PDF, 49pp., 982KB] - About PDF files
- Panola, Tallahatchie and Yalobusha Counties:
Yocona River and Enid Reservoir (Mercury), Approved December 2002 [PDF, 47pp., 993KB] - About PDF files
North Carolina
Lumber River Basin
- Bladen, Columbus, Cumberland, Hoke, Montogmery, Moore, Richmond, Roberson, and Scotland Counties:
Lumber River Basin (Mercury), Approved October 1, 2000 [PDF, 44pp., 4.7MB] - About PDF files
- Bertie County:
Cashie River (Mercury) Draft- Public comment ended September 14, 2004 [PDF, 136pp., 2.8MB] - About PDF files
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