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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 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.

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 4,961 31.1 4,992 31.7 31.7
SILVER AND SILVER COMPOUNDS 4,118 9.88 4,127 26.2 58.02
LEAD AND LEAD COMPOUNDS 2,734 169 2,903 18.4 76.4
COPPER AND COPPER COMPOUNDS 2,235 28.2 2,264 14.4 90.8
ZINC AND ZINC COMPOUNDS 1,033 6.47 1,039 6.61 97.5
NICKEL AND NICKEL COMPOUNDS 65.1 63.6 129 0.81 98.3
NITRATE COMPOUNDS 0 77.8 77.8 0.49 98.8
SODIUM NITRITE 0 77.5 77.5 0.49 99.3
COBALT AND COBALT COMPOUNDS 1.301 58.3 59.6 0.37 99.6
CHROMIUM AND CHROMIUM COMPOUNDS 17.7 11.4 29.2 0.18 99.8

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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)
050400040301 Robinson Run-Muskingum River 7,487 0.85 7,488
050600012302 Kian Run-Scioto River 782 0 782
071200070111 Town of Oswego-Fox River 338 0.0049 338
020501040904 Upper Tioga River 273 0.038 273
040301080913 Menominee River 195 1.12 197
020802030305 Opossum Creek-James River 39.8 109 149
040301010302 Spring Creek 104 0.13 104
050100040906 Van Home Creek-French Creek 0 81.1 81.1
041100010506 Lower West Branch Black River 54.2 0 54.2
020402030805 Swamp Creek 53.3 0 53.3

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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)
43812CLWWT2266S MCWANE DUCTILE OHIO COSHOCTON, OH 331511 050400040301 MANGANESE AND MANGANESE COMPOUNDS 4,773 0.82 4,774
87109CDMYC6905W MATERION CORP REFINERY ALBUQUERQUE, NM 331529 130202030302 SILVER AND SILVER COMPOUNDS 4,118 9.88 4,127
43812CLWWT2266S MCWANE DUCTILE OHIO COSHOCTON, OH 331511 050400040301 LEAD AND LEAD COMPOUNDS 1,113 0.017 1,113
43812CLWWT2266S MCWANE DUCTILE OHIO COSHOCTON, OH 331511 050400040301 COPPER AND COPPER COMPOUNDS 862 0.014 862
43812CLWWT2266S MCWANE DUCTILE OHIO COSHOCTON, OH 331511 050400040301 ZINC AND ZINC COMPOUNDS 740 0.0034 740
43207BCKYS2211P COLUMBUS CASTINGS COLUMBUS, OH 331513 050600012302 LEAD AND LEAD COMPOUNDS 612 0 612
60538RRNDS1002G AURORA METALS DIV LLC MONTGOMERY, IL 331529 071200070111 COPPER AND COPPER COMPOUNDS 338 0.0049 338
16912WRDMN115GU WARD MANUFACTURING LLC BLOSSBURG, PA 331511 020501040904 LEAD AND LEAD COMPOUNDS 273 0.038 273
87109CDMYC6905W MATERION CORP REFINERY ALBUQUERQUE, NM 331529 130202030302 COPPER AND COPPER COMPOUNDS 156 0.49 156
54143WPCFN805OD WAUPACA FOUNDRY - PLANT 4 MARINETTE, WI 331511 040301080913 COPPER AND COPPER COMPOUNDS 156 0.49 156

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