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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 more information on the types of errors identified, see EPA's Technical Support Document for the 2010 Effluent Guidelines Program (PDF) (255 pp, 3.4MB). Because of this review, and EPA's methodology for interpreting data and calculating loads (explained in EPA's Technical Support Document for the Annual Review of Existing Effluent Guidelines and Identification of Potential New Point Source Categories), the calculated loads and category rankings may differ using DMR and TRI data that has not been updated. Data that have been updated by EPA's annual reviews are flagged by green flags designating that a change has been made to a concentration, quantity, or flow value. View a listing of the changes for the most recent annual review (PDF) (1 pg, 7K).

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) 9,099 38.9 38.9
Chloride (as Cl) 7,197 30.8 69.7
Aluminum, total recoverable 2,811 12.03 81.7
Chlorine, total residual 1,107 4.73 86.5
Sulfate, total (as SO4) 931 3.98 90.4
Cyanide, weak acid, dissociable 360 1.53 92.03
Selenium, total (as Se) 320 1.37 93.4
Iron, total recoverable 315 1.34 94.7
Manganese, total recoverable 255 1.0905 95.8
Arsenic, total (as As) 128 0.54 96.3

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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
060101080604 Hollow Poplar Creek-Nolichucky River 344
040601030705 Manistee River 336
041300030502 Jaycox Creek-Genesee River 280
040700030306 Bell River-Frontal Lake Huron 229

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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 5,565
TX0112038 CEDAR LAKE PLANT SEAGRAVES, TX 1474 120800040602 Chloride 5,453
WV0112640 LAMBERT DOCK BELMONT, WV 5032 050302011009 Aluminum 2,805
NC0000353 FELDSPAR SPRUCE PINE, NC 1459 060101080104 Fluoride 1,711
NC0000400 K-T FELDSPAR CORP SPRUCE PINE, NC 1459 060101080106 Fluoride 847
NY0203335 WASHINGTON MILLS ELECTRO MINERALS CORP. NIAGARA FALLS, NY 3291 041201040605 Total Residual Chlorine 803
WV0112640 LAMBERT DOCK BELMONT, WV 5032 050302011009 Chloride 636
FL0040177 CF INDUSTRIES, INC - BARTOW CHEMICAL PLANT WAUCHULA, FL 1475 031001010401 Fluoride 473
TX0112038 CEDAR LAKE PLANT SEAGRAVES, TX 1474 120800040602 Sulfate 423
WV0112640 LAMBERT DOCK BELMONT, WV 5032 050302011009 Cyanide 351

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