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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 - Nonferrous metals manufacturing (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
CADMIUM AND CADMIUM COMPOUNDS 14,556 893 15,448 34.8 34.8
LEAD AND LEAD COMPOUNDS 6,486 670 7,156 16.1 51.05
VANADIUM AND VANADIUM COMPOUNDS 4,833 0 4,833 10.9 61.9
ARSENIC AND ARSENIC COMPOUNDS 4,160 471 4,631 10.4 72.4
COPPER AND COPPER COMPOUNDS 3,751 32.9 3,784 8.54 80.9
MERCURY AND MERCURY COMPOUNDS 3,336 7.31 3,344 7.55 88.5
NITRATE COMPOUNDS 1,836 336 2,172 4.907 93.4
ZINC AND ZINC COMPOUNDS 997 2.84 1,000 2.25 95.7
MANGANESE AND MANGANESE COMPOUNDS 536 22.8 559 1.26 96.9
SILVER AND SILVER COMPOUNDS 105 317 422 0.95 97.9

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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)
051302050308 Cummings Creek-Cumberland River 11,958 0 11,958
020503061704 Cabin Creek-Susquehanna River 5,466 0 5,466
071401010804 Lower Joachim Creek 2,943 641 3,584
080903010201 Bayou Chevreuil-Frontal Lac des Allemands 3,345 0 3,345
051402011203 Cowhide Slough-Ohio River 2,857 0 2,857
041000111301 Muskellunge Creek 1,542 0 1,542
071401020402 Crooked Creek-Huzzah Creek 1,176 0 1,176
020401060804 Fireline Creek-Lehigh River 1,059 11.2 1,070
020501060502 Laning Creek-Upper Susquehanna River 821 0 821
020402030604 Laurel Run-Schuylkill River 580 0.027 580

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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)
37040SVGZN1800Z NYRSTAR CLARKSVILLE INC CLARKSVILLE, TN 212231 051302050308 CADMIUM AND CADMIUM COMPOUNDS 10,169 0 10,169
77541GLFCH302MI GULF CHEMICAL & METALLURGICAL CORP FREEPORT, TX 331492 VANADIUM AND VANADIUM COMPOUNDS 4,833 0 4,833
70052KSRLMAIRLI NORANDA ALUMINA LLC GRAMERCY, LA 331313 080903010201 MERCURY AND MERCURY COMPOUNDS 3,325 0 3,325
17512CLNLM2NDLI COLONIAL METALS CO COLUMBIA, PA 331492 020503061704 LEAD AND LEAD COMPOUNDS 3,002 0 3,002
63048HRCLN881MA DOE RUN CO HERCULANEUM SMELTER HERCULANEUM, MO 331410 071401010804 CADMIUM AND CADMIUM COMPOUNDS 2,850 112 2,962
17512CLNLM2NDLI COLONIAL METALS CO COLUMBIA, PA 331492 020503061704 COPPER AND COPPER COMPOUNDS 2,270 0 2,270
47630LMNMCHIGHW ALCOA INC-WARRICK OPERATIONS NEWBURGH, IN 331313 051402011203 ARSENIC AND ARSENIC COMPOUNDS 2,256 0 2,256
43416BRSHWSOUTH MATERION BRUSH INC ELMORE, OH 331410 041000111301 NITRATE COMPOUNDS 1,115 0 1,115
37040SVGZN1800Z NYRSTAR CLARKSVILLE INC CLARKSVILLE, TN 212231 051302050308 LEAD AND LEAD COMPOUNDS 1,095 0 1,095
77541GLFCH302MI GULF CHEMICAL & METALLURGICAL CORP FREEPORT, TX 331492 ARSENIC AND ARSENIC COMPOUNDS 881 0 881

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