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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 p, 7K).

Point Source Category Information - Coal mining (TRI)

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

Top Chemicals - Toxic-Weighted Pounds (TWPE) (2011)
Chemical Name Direct TRI TWPE (lb-eq/yr) Indirect TRI TWPE (lb-eq/yr) Total TRI TWPE (lb-eq/yr) % of Category TWPE Cumulative % of
Category TWPE
AMMONIA 322 0 322 57.009 57.009
MANGANESE AND MANGANESE COMPOUNDS 184 0 184 32.7 89.7
MERCURY AND MERCURY COMPOUNDS 38.8 0 38.8 6.89 96.6
LEAD AND LEAD COMPOUNDS 17.7 0 17.7 3.15 99.7
ZINC AND ZINC COMPOUNDS 0.43 0 0.43 0.076 99.8
CHROMIUM AND CHROMIUM COMPOUNDS 0.38 0 0.38 0.068 99.9
VANADIUM AND VANADIUM COMPOUNDS 0.18 0 0.18 0.032 99.9
BARIUM AND BARIUM COMPOUNDS 0.17 0 0.17 0.031 99.9
NICKEL AND NICKEL COMPOUNDS 0.17 0 0.17 0.031 100

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Direct TRI TWPE (lb-eq/yr) Indirect TRI TWPE (lb-eq/yr) Total TRI TWPE (lb-eq/yr)
050901010401 Headwaters Little Raccoon Creek 283 0 283
020700020201 Shields Run-North Branch Potomac River 162 0 162
051402010906 Coles Creek 30.1 0 30.1
050701010306 Turkey Creek-Guyandotte River 13.7 0 13.7
100901010501 Tongue River-Pearson Creek 2.34 0 2.34
050500050104 Lower Williams River 0.63 0 0.63
050100070102 Beaverdam Creek-Quemahoning Creek 0.49 0 0.49
020503030101 Shawnee Branch-Shawnee Lake 0.31 0 0.31
050100070101 North Branch Quemahoning Creek 0.31 0 0.31
050701010102 Slab Fork 0.15 0 0.15

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Top Facility Discharges in Toxic-Weighted Pounds (TWPE) (2011)
TRI Facility ID Facility Name City, State NAICS Code HUC-12 Code Top Chemical Top Chemcical Direct TRI TWPE (lb-eq/yr) Top Chemcical Indirect TRI TWPE (lb-eq/yr) Top Chemcical Total TRI TWPE (lb-eq/yr)
45634SNDSH38701 SANDS HILL MINING LLC HAMDEN, OH 212111 050901010401 AMMONIA 283 0 283
21550MTTKC293TA METTIKI COAL LLC OAKLAND, MD 212112 020700020201 MANGANESE AND MANGANESE COMPOUNDS 139 0 139
81625TRPPR65MIL TRAPPER MINING INC CRAIG, CO 212111 140500011108 MANGANESE AND MANGANESE COMPOUNDS 28.1 0 28.1
21550MTTKC293TA METTIKI COAL LLC OAKLAND, MD 212112 020700020201 MERCURY AND MERCURY COMPOUNDS 19.3 0 19.3
26570STRNS1044M FEDERAL #2 PREPARATION PLANT FAIRVIEW, WV 212111 AMMONIA 17.9 0 17.9
4760WVGCLP3866S VIGO COAL OPERATING CO INC CHILI PEPPER MINE BOONVILLE, IN 212111 051402010906 MANGANESE AND MANGANESE COMPOUNDS 17.5 0 17.5
24874KPLRPRTE97 KEPLER PROCESSING CO POCAHONTAS NO 51 COAL PREP PLANT PINEVILLE, WV 212111 050701010306 AMMONIA 13.7 0 13.7
81625TRPPR65MIL TRAPPER MINING INC CRAIG, CO 212111 140500011108 MERCURY AND MERCURY COMPOUNDS 10.5 0 10.5
4760WVGCLP3866S VIGO COAL OPERATING CO INC CHILI PEPPER MINE BOONVILLE, IN 212111 051402010906 LEAD AND LEAD COMPOUNDS 6.608 0 6.608
35006SSTLM8800O OAK GROVE RESOURCES LLC-CONCO RD PREP PLANT/OAK GROVE MINE ADGER, AL 212112 LEAD AND LEAD COMPOUNDS 6.49 0 6.49

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