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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 - Copper forming (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
LEAD AND LEAD COMPOUNDS 123 84.6 208 54.9 54.9
COPPER AND COPPER COMPOUNDS 85.6 32.7 118 31.3 86.2
NITRATE COMPOUNDS 0 24.6 24.6 6.53 92.7
ZINC AND ZINC COMPOUNDS 7.73 5.28 13.02 3.44 96.2
NICKEL AND NICKEL COMPOUNDS 0.2 10.3 10.5 2.78 99.003
COBALT AND COBALT COMPOUNDS 0 2.27 2.27 0.602 99.6
CHROMIUM AND CHROMIUM COMPOUNDS 0.07 0.92 0.99 0.26 99.8
ANTIMONY AND ANTIMONY COMPOUNDS 0.24 0.12 0.36 0.097 99.9
NITRIC ACID 0 0.045 0.045 0.012 99.9
DECABROMODIPHENYL OXIDE 0.043 0.000011 0.043 0.011 99.9

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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)
080402020501 Boggy Creek 5.83 78.04 83.8
051002050202 Hays Fork-Silver Creek 45.2 2.32 47.5
051202010802 Sly Fork 47.3 0 47.3
041100020604 Cuyahoga Heights-Cuyahoga River 22.01 12.8 34.8
011000051207 Bladens River-Naugatuck River 20.76 0.103 20.8
051401020105 Hammond Creek-Salt River 13.08 6.065 19.1
040400030501 Kinnickinnic River 0 15.4 15.4
041000030302 Cogswell Cemetery-St Joseph River 9.69 1.99 11.6
010900030103 Quinsigamond River 3.11 0.39 3.508
080401020101 Stone Quarry Creek-Ouachita River 3.11 0.00018 3.11

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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 Chemical Direct TRI TWPE (lb-eq/yr) Top Chemical Indirect TRI TWPE (lb-eq/yr) Top Chemical Total TRI TWPE (lb-eq/yr)
71730MRCBL1200B NEXANS AMERCABLE EL DORADO, AR 335929 080402020501 LEAD AND LEAD COMPOUNDS 5.75 74.3 80.08
46953CBLCN440EA GENERAL CABLE INDUSTRIES INC MARION, IN 335929 051202010802 LEAD AND LEAD COMPOUNDS 43.9 0 43.9
40475THKNTROUTE OKONITE CO INC RICHMOND, KY 335929 051002050202 LEAD AND LEAD COMPOUNDS 34.72 1.65 36.3
44105LMNMC1600H ALCOA CLEVELAND WORKS CUYAHOGA HEIGHTS, OH 332112 041100020604 COPPER AND COPPER COMPOUNDS 11.8 8.97 20.8
40342GNRLC1381B GENERAL CABLE CORP LAWRENCEBURG, KY 335929 051401020105 COPPER AND COPPER COMPOUNDS 13.08 5.48 18.5
06483THKRT49DAY MARMON UTILITY LLC SEYMOUR, CT 335929 011000051207 LEAD AND LEAD COMPOUNDS 14.3 0.103 14.4
44105LMNMC1600H ALCOA CLEVELAND WORKS CUYAHOGA HEIGHTS, OH 332112 041100020604 LEAD AND LEAD COMPOUNDS 10.08 3.709 13.7
24477NBCNCROUTE NIBCO OF VIRGINIA INC STUARTS DRAFT, VA 332112 COPPER AND COPPER COMPOUNDS 11.2 1.69 12.9
90723WBRMT16706 WEBER METALS INC PARAMOUNT, CA 332112 NITRATE COMPOUNDS 0 10.1 10.1
53110LDSHC5481S ATI LADISH FORGING CUDAHY, WI 332112 040400030501 NICKEL AND NICKEL COMPOUNDS 0 9.604 9.604

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