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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 - Nonferrous metals manufacturing (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
CADMIUM AND CADMIUM COMPOUNDS 14,083 2,235 14,211 33.9 33.9
COPPER AND COPPER COMPOUNDS 7,753 155 7,820 18.6 52.6
LEAD AND LEAD COMPOUNDS 6,280 756 6,841 16.3 69.04
ARSENIC AND ARSENIC COMPOUNDS 4,836 549 4,887 11.6 80.7
NITRATE COMPOUNDS 1,817 158 1,817 4.34 85.07
ZINC AND ZINC COMPOUNDS 799 221 801 1.91 86.9
VANADIUM AND VANADIUM COMPOUNDS 518 0 518 1.23 88.2
MANGANESE AND MANGANESE COMPOUNDS 297 69.7 301 0.72 88.9
BERYLLIUM AND BERYLLIUM COMPOUNDS 268 0 268 0.64 89.5
NICKEL AND NICKEL COMPOUNDS 238 15.02 240 0.57 90.1

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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)
020503060802 Little Chickies Creek 5,492 0 5,492
070802051405 Prairie Creek 3,643 70.3 3,714
071401010804 Lower Joachim Creek 2,983 645 3,627
051402011203 Cowhide Slough-Ohio River 3,145 0 3,145
120402050400 Lower Oyster Creek 1,688 0 1,688
041000100502 Portage River 1,544 0 1,544
110100070301 Strother Creek 1,291 0 1,291
020501060502 Laning Creek-Upper Susquehanna River 807 0 807
170900030610 Truax Creek-Willamette River 418 1.51 420
050301040101 McKee Run-Beaver Creek 290 0 290

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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)
37040SVGZN1800Z NYRSTAR CLARKSVILLE INC CLARKSVILLE, TN 212231 CADMIUM AND CADMIUM COMPOUNDS 10,307 0 10,307
52404PMXND5300W PMX INDUSTRIES INC CEDAR RAPIDS, IA 331423 070802051405 COPPER AND COPPER COMPOUNDS 3,565 47.7 3,612
63048HRCLN881MA DOE RUN CO HERCULANEUM SMELTER HERCULANEUM, MO 331419 071401010804 CADMIUM AND CADMIUM COMPOUNDS 2,889 113 3,002
17512CLNLM2NDLI COLONIAL METALS CO COLUMBIA, PA 331423 020503060802 LEAD AND LEAD COMPOUNDS 3,002 0 3,002
47630LMNMCHIGHW ALCOA INC - WARRICK OPERATIONS NEWBURGH, IN 331312 051402011203 ARSENIC AND ARSENIC COMPOUNDS 2,626 0 2,626
17512CLNLM2NDLI COLONIAL METALS CO COLUMBIA, PA 331423 020503060802 COPPER AND COPPER COMPOUNDS 2,296 0 2,296
43416BRSHWSOUTH MATERION BRUSH INC ELMORE, OH 331411 041000100502 NITRATE COMPOUNDS 1,115 0 1,115
37040SVGZN1800Z NYRSTAR CLARKSVILLE INC CLARKSVILLE, TN 212231 LEAD AND LEAD COMPOUNDS 1,095 0 1,095
77541GLFCH302MI GULF CHEMICAL & METALLURGICAL CORP FREEPORT, TX 331492 120402050400 ARSENIC AND ARSENIC COMPOUNDS 1,026 0 1,026
65440BCKSMHIGHW BUICK RESOURCE RECYCLING FACILITY LLC BOSS, MO 331492 110100070301 ARSENIC AND ARSENIC COMPOUNDS 816 0 816

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