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Discharge Monitoring Report (DMR) Pollutant Loading Tool

The Loading Tool is being transitioned into ECHO to increase user access to data and streamline site maintenance. The beta version is now available for testing. EPA plans to retire this site in late November 2017. Current site functionality will be available in ECHO.

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 - Ferroalloy manufacturing (DMR)

EPA 304M Annual Review flag — Indicates load was altered by EPA’s 304M Annual Review. You can hover over the green flag to see the original load from the DMR data.

Top Pollutants - Toxic-Weighted Pounds (TWPE) (2017)
Pollutant Name Total DMR TWPE (lb-eq/yr) % of Category TWPE Cumulative % of
Category TWPE
Cadmium 707 37.9 37.9
Manganese 380 20.3 58.3
Copper 175 9.39 67.7
Aluminum 141 7.58 75.3
Iron 139 7.44 82.7
Lead 113 6.083 88.8
Vanadium 88.4 4.74 93.5
Mercury 31.7 1.703 95.2
Zinc 24.2 1.303 96.5
Arsenic 19.1 1.027 97.6

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Top Receiving Watersheds (2017)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
050302020102 Mile Run-Ohio River 1,090
060300010201 Jones Creek-Tennessee River 276
050500060304 Boomer Branch-Kanawha River 215
050400050207 Trail Run-Wills Creek 91.8
060400050402 Tennessee River-Indian Creek 87.3
050302020805 Broad Run-Ohio River 29.8
050100090302 Pucketa Creek 13.3
060400060502 Guess Creek-Tennessee River 2.23
050400041105 Congress Run-Muskingum River 0.61

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Top Facility Discharges in Toxic-Weighted Pounds (TWPE) (2017)
NPDES ID Facility Name City, State SIC Code HUC-12 Code Top Pollutant Top Pollutant TWPE (lb-eq/yr)
OH0004006 ERAMET MARIETTA METALLURGICAL PLANT MARIETTA, OH 3313 050302020102 Cadmium 695
OH0004006 ERAMET MARIETTA METALLURGICAL PLANT MARIETTA, OH 3313 050302020102 Manganese 287
AL0000485 TENNESSEE ALLOYS CORPORATION BRIDGEPORT, AL 3313 060300010201 Iron 134
AL0000485 TENNESSEE ALLOYS CORPORATION BRIDGEPORT, AL 3313 060300010201 Copper 131
WV0000167 ELKEM METALS COMPANY, LP, ALLOY, WV FACILITY ALLOY, WV 3313 050500060304 Aluminum 112
OH0004006 ERAMET MARIETTA METALLURGICAL PLANT MARIETTA, OH 3313 050302020102 Lead 104
OH0114847 SHIELDALLOY METALLURGICAL CORPORATION CAMBRIDGE, OH 3313 050400050207 Vanadium 87.3
TN0001686 PRINCE ERACHEM, INC. (PRINCE ERACHEM INCORPORATED) NEW JOHNSONVILLE, TN 3313 060400050402 Manganese 87.1
AL0025216 GLOBE METALLURGICAL SELMA, AL 3313 031502011206 Copper 43.1
WV0000167 ELKEM METALS COMPANY, LP, ALLOY, WV FACILITY ALLOY, WV 3313 050500060304 Mercury 31.7

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