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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 661 36.9 36.9
Manganese 349 19.4 56.4
Copper 200 11.1 67.6
Iron 162 9.054 76.6
Aluminum 128 7.12 83.7
Lead 106 5.92 89.7
Vanadium 82.01 4.58 94.3
Mercury 26.4 1.47 95.7
Zinc 22.7 1.27 97.05
Arsenic 16.5 0.92 97.9

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Top Receiving Watersheds (2017)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
050302020102 Mile Run-Ohio River 1,022
060300010201 Jones Creek-Tennessee River 322
050500060304 Boomer Branch-Kanawha River 181
050400050207 Trail Run-Wills Creek 85.2
060400050402 Tennessee River-Indian Creek 74.2
050302020805 Broad Run-Ohio River 30.5
050100090302 Pucketa Creek 13.9
060400060502 Guess Creek-Tennessee River 1.86
050400041105 Congress Run-Muskingum River 0.59

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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 Manganese 269
AL0000485 TENNESSEE ALLOYS CORPORATION BRIDGEPORT, AL 3313 060300010201 Copper 154
WV0000167 WVA MANUFACTURING, LLC ALLOY, WV 3313 050500060304 Aluminum 96.8
OH0114847 AMG VANADIUM LLC CAMBRIDGE, OH 3313 050400050207 Vanadium 81.1
TN0001686 ERACHEM NEW JOHNSONVILLE, TN 3313 060400050402 Manganese 74.05
AL0025216 GLOBE METALLURGICAL SELMA, AL 3313 031502011206 Copper 45.8
WV0000167 WVA MANUFACTURING, LLC ALLOY, WV 3313 050500060304 Mercury 26.4

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