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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 - Metal molding and casting (foundries) (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
MANGANESE AND MANGANESE COMPOUNDS 3,373 17.7 3,376 35.08 35.08
LEAD AND LEAD COMPOUNDS 2,252 150 2,377 24.7 59.7
COPPER AND COPPER COMPOUNDS 1,897 559 1,909 19.8 79.6
ZINC AND ZINC COMPOUNDS 967 6.56 972 10.1 89.7
NICKEL AND NICKEL COMPOUNDS 71.9 63.2 86.8 0.902 90.6
CHROMIUM AND CHROMIUM COMPOUNDS 18.005 11.4 19.1 0.19 90.8
MERCURY AND MERCURY COMPOUNDS 5.85 0.65 6.042 0.062 90.8
COBALT AND COBALT COMPOUNDS 1.74 58.3 5.401 0.056 90.9
1,2,4-TRIMETHYLBENZENE 4.54 0 4.54 0.047 90.9
PHENOL 4.405 0.11 4.42 0.046 91.04

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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)
050400011904 Morgan Run-Tuscarawas River 5,968 0.59 5,968
071200070109 Mastodon Lake-Fox River 341 0.00504 341
020501040904 Upper Tioga River 273 0.038 273
040301050602 Potato Rapids Dam-Peshtigo River 197 14.1 198
020802030305 Opossum Creek-James River 38 109 147
040301010301 Headwaters North Branch Manitowoc River 101 0.13 101
102300060602 Lake Manawa-Missouri River 97.7 0 97.7
070801051202 Ballinger Creek-South Skunk River 91.8 0.078 91.9
041000090201 Preston Run-Maumee River 72.7 1.23 73.9
041100010506 Lower West Branch Black River 54.2 0 54.2

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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)
43812CLWWT2266S CLOW WATER SYSTEMS CO COSHOCTON, OH 331511 050400011904 MANGANESE AND MANGANESE COMPOUNDS 3,244 0.55 3,244
43812CLWWT2266S CLOW WATER SYSTEMS CO COSHOCTON, OH 331511 050400011904 LEAD AND LEAD COMPOUNDS 1,113 0.017 1,113
43812CLWWT2266S CLOW WATER SYSTEMS CO COSHOCTON, OH 331511 050400011904 COPPER AND COPPER COMPOUNDS 871 0.015 871
43812CLWWT2266S CLOW WATER SYSTEMS CO COSHOCTON, OH 331511 050400011904 ZINC AND ZINC COMPOUNDS 740 0.0034 740
60538RRNDS1002G AURORA METALS DIV LLC MONTGOMERY, IL 331525 071200070109 COPPER AND COPPER COMPOUNDS 341 0.00504 341
16912WRDMN115GU WARD MANUFACTURING LLC BLOSSBURG, PA 331511 020501040904 LEAD AND LEAD COMPOUNDS 273 0.038 273
54143WPCFN805OD THYSSENKRUPP WAUPACA - PLANT 4 MARINETTE, WI 331511 040301050602 COPPER AND COPPER COMPOUNDS 158 0.504 158
35023NTDST2023S US PIPE & FOUNDRY CO BESSEMER, AL 331511 ZINC AND ZINC COMPOUNDS 148 0 148
24505GRFFNADAMS GRIFFIN PIPE PRODUCTS CO LYNCHBURG, VA 331511 020802030305 LEAD AND LEAD COMPOUNDS 26.88 104 131
53188WSCNS905EA METALTEK INTERNATIONAL - WISCO NSIN CENTRIFUGAL DIV WAUKESHA, WI 331513 COPPER AND COPPER COMPOUNDS 112 2.31 114

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