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Discharge Monitoring Report (DMR) Pollutant Loading Tool

Note: This area of the DMR Loading Tool includes data used for EPA's annual review of industrial effluent discharges. EPA's Office of Water is responsible for developing programs and tools authorized under the Clean Water Act (CWA), which enables EPA and the states to protect and restore the Nation's waters. The CWA requires EPA to annually review and, if appropriate, revise its water pollution control technology-based regulations, called "effluent limitations guidelines" or "effluent guidelines" that limit the discharge of pollutants to waters of the U.S. from industrial facilities. As part of the EPA's annual reviews, EPA estimates the load of pollutants discharged using a combination of discharge monitoring report (DMR) data, from ICIS-NPDES, and Toxics Release Inventory (TRI) data. EPA also assigns a relative toxic weight to the estimated loads to rank industrial categories by toxic weighted pound equivalents (TWPE). For more background on EPA's effluent guidelines program see EPA's Effluent Guidelines website.

EPA reviews the DMR and TRI data used to calculate effluent loads and TWPE for accuracy prior to further investigating industrial categories for possible effluent guideline revisions. For identified outlier data, EPA contacts states and facilities to confirm and update (if appropriate) data values and units. For information on the methodology and types of changes identified, see EPA's most recent odd-numbered year Annual Effluent Guidelines Review Report (PDF) (169 pp, 2MB) on the Effluent Guidelines Plan webpage. Because of this review and EPA's methodology for interpreting data and calculating loads, the calculated loads and category rankings may differ from original calculations using DMR and TRI data that have not been updated. Data that have been updated by EPA's annual reviews are indicated by green flags designating that a change has been made to a concentration, quantity, or flow value. A listing of the DMR and TRI data changes from the most recent annual review is available in the Annual Effluent Guidelines Review Report Appendices (PDF) (241 pp, 3.3MB).

Point Source Category Information - Mineral Mining and Processing (DMR)

EPA 304M Annual Review flag — Indicates load was altered by EPA’s 304M Annual Review. You can hover over the green flag to see the original load from the DMR data.

Top Pollutants - Toxic-Weighted Pounds (TWPE) (2011)
Pollutant Name Total DMR TWPE (lb-eq/yr) % of Category TWPE Cumulative % of
Category TWPE
Fluoride, total (as F) 9,458 39.8 39.8
Chloride (as Cl) 7,198 30.2 70.09
Aluminum, total recoverable 2,823 11.8 81.9
Chlorine, total residual 1,087 4.57 86.5
Sulfate, total (as SO4) 939 3.95 90.5
Cyanide, weak acid, dissociable 360 1.51 92.02
Iron, total recoverable 322 1.35 93.3
Selenium, total (as Se) 320 1.34 94.7
Manganese, total recoverable 276 1.16 95.8
Arsenic, total (as As) 128 0.53 96.4

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
050302011009 Cow Creek-Ohio River 4,444
060101080104 Grassy Creek-North Toe River 1,715
060101080106 Bear Creek-North Toe River 1,008
041000010101 Mouille Creek-Frontal Lake Erie 882
041201040605 Niagara Falls-Niagara River 834
031001010401 Upper Payne Creek 476
031002040202 Mined Area-Alafia River 367
060101080604 Hollow Poplar Creek-Nolichucky River 344
040601030705 Manistee River 336
041300030502 Jaycox Creek-Genesee River 280

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Top Facility Discharges in Toxic-Weighted Pounds (TWPE) (2011)
NPDES ID Facility Name City, State SIC Code HUC-12 Code Top Pollutant Top Pollutant TWPE (lb-eq/yr)
FL0000655 PCS PHOSPHATE WHITE SPRINGS WHITE SPRINGS, FL 1479 031102010604 Fluoride, total (as F) 5,565
TX0112038 CEDAR LAKE PLANT SEAGRAVES, TX 1474 120800040602 Chloride (as Cl) 5,453
WV0112640 LAMBERT DOCK BELMONT, WV 5032 050302011009 Aluminum, total recoverable 2,805
NC0000353 FELDSPAR SPRUCE PINE, NC 1459 060101080104 Fluoride, total (as F) 1,711
NC0000400 SPRUCE PINE OPERATIONS SPRUCE PINE, NC 1459 060101080106 Fluoride, total (as F) 847
NY0203335 WASHINGTON MILLS ELECTRO MINERALS CORP. NIAGARA FALLS, NY 3291 041201040605 Chlorine, total residual 803
WV0112640 LAMBERT DOCK BELMONT, WV 5032 050302011009 Chloride (as Cl) 636
FL0040177 MOSAIC FERTILIZER, LLC - HARDEE NORTH PASTURE MINE WAUCHULA, FL 1475 031001010401 Fluoride, total (as F) 473
TX0112038 CEDAR LAKE PLANT SEAGRAVES, TX 1474 120800040602 Sulfate, total (as SO4) 423
FL0000256 MOSAIC PHOSPHATES COMPANY - KINGSFORD MINE COMPLEX MULBERRY, FL 1475 031002040202 Fluoride, total (as F) 359

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