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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).

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Point Source Category Information - Metal Products and Machinery (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
POLYCYCLIC AROMATIC COMPOUNDS 7,903 736 8,639 97.8 97.8
MANGANESE AND MANGANESE COMPOUNDS 39.41 0.25 39.6 0.44 98.3
COPPER AND COPPER COMPOUNDS 35.09 3.29 38.3 0.43 98.7
NICKEL AND NICKEL COMPOUNDS 0.8 26.01 26.8 0.303 99.04
ZINC AND ZINC COMPOUNDS 13.72 7.77 21.4 0.24 99.2
LEAD AND LEAD COMPOUNDS 16.8 1.63 18.4 0.208 99.4
1,4-DIOXANE 0 15.2 15.2 0.17 99.6
XYLENE (MIXED ISOMERS) 10.5 1.097 11.6 0.13 99.8
NAPHTHALENE 2.79 0.68 3.47 0.039 99.8
TETRACHLOROETHYLENE 2.3 1.13 3.43 0.038 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)
080102010405 Lower Bayou De Chien 3,312 77.3 3,390
111102020401 Smith Creek-Arkansas River 2,557 0 2,557
051302030301 Stewart Creek 0 548 548
050100050301 Laurel Run Dam-Elk Creek 403 24.1 427
040802040307 Swartz Creek 86.7 36.5 123
050200020204 Outlet Elk Creek 105 0 105
051201100604 Mill Creek-Sugar Creek 13.6 2.74 16.4
070200121108 Ninemile Creek 0 16.1 16.1
041300030704 Genesee River 1.55 0 1.55
051002050803 Boyd Run-North Elkhorn Creek 0 1.32 1.32

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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)
42050SGLCR2320M SGL CARBON LLC HICKMAN, KY 335991 080102010405 POLYCYCLIC AROMATIC COMPOUNDS 3,312 77.3 3,389
72949SGLCR3931C SGL CARBON LLC OZARK, AR 335991 111102020401 POLYCYCLIC AROMATIC COMPOUNDS 2,557 0 2,557
28655SGLCR307JA SGL CARBON LLC MORGANTON, NC 335991 030501010606 POLYCYCLIC AROMATIC COMPOUNDS 775 38.6 814
44130PRDCT12900 GRAFTECH INTERNATIONAL HOLDINGS INC PARMA, OH 335991 POLYCYCLIC AROMATIC COMPOUNDS 752 0 752
37167NSSNMNISSA NISSAN NA INC SMYRNA MANUFACTURING PLANT SMYRNA, TN 336111 051302030301 POLYCYCLIC AROMATIC COMPOUNDS 0 548 548
15857SGLCR900TH SGL CARBON LLC SAINT MARYS, PA 335991 050100050301 POLYCYCLIC AROMATIC COMPOUNDS 302 24.1 326
26323CRCRBPHILI GRAFTECH INTERNATIONAL HOLDINGS INC ANMOORE, WV 335991 050200020204 POLYCYCLIC AROMATIC COMPOUNDS 105 0 105
15857CRBNG800TH GRAFTECH USA LLC SAINT MARYS, PA 335991 050100050301 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
44830NTNLL200NO NATIONAL ELECTRICAL CARBON PRODUCTS DBA MORGAN ADV MATERIALS FOSTORIA, OH 335991 POLYCYCLIC AROMATIC COMPOUNDS 0 40.2 40.2
48551GMCTRG3100 GM LLC POWERTRAIN FLINT ENGINE OPERATIONS FLINT, MI 336370 040802040307 MANGANESE AND MANGANESE COMPOUNDS 39.2 0.21 39.41

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