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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 (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 205,641 60.4 60.4
Vanadium 60,691 17.8 78.3
Lead 27,796 8.17 86.5
Zinc 16,945 4.98 91.5
Aluminum 9,000 2.64 94.1
Fluoride 6,400 1.88 96.04
Arsenic 2,518 0.74 96.7
Molybdenum 2,506 0.73 97.5
Copper 2,373 0.69 98.2
Polychlorinated biphenyls 1,544 0.45 98.6

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Top Receiving Watersheds (2017)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
051302050308 Cummings Creek-Cumberland River 215,173
080401010806 Lake Hamilton Dam 59,549
071401020402 Crooked Creek-Huzzah Creek 32,632
120402050400 Lower Oyster Creek 5,088
041503040502 McConnell Creek-Grass River 3,528
060102010108 Pistol Creek 3,111
031602040505 Tensaw River-Apalachee River 2,961
051402060701 Bayou Creek-Ohio River 1,544
051402011203 Cowhide Slough-Ohio River 1,374
031002060301 Palm River 1,288

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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)
TN0029157 NYRSTAR CLARKSVILLE INC CLARKSVILLE, TN 3339 051302050308 Cadmium 194,537
AR0000523 EVRAZ STRATCOR INC HOT SPRINGS, AR 3339 080401010806 Vanadium 59,460
MO0000337 BUICK RESOURCE RECYCLING FACILITY, LLC BOSS, MO 3341 071401020402 Lead 19,762
TN0029157 NYRSTAR CLARKSVILLE INC CLARKSVILLE, TN 3339 051302050308 Zinc 16,349
MO0000337 BUICK RESOURCE RECYCLING FACILITY, LLC BOSS, MO 3341 071401020402 Cadmium 10,552
AL0066052 SANDERS LEAD COMPANY INCORPORATED TROY, AL 3341 031403010205 Lead 3,552
TN0029157 NYRSTAR CLARKSVILLE INC CLARKSVILLE, TN 3339 051302050308 Lead 3,004
AL0002976 MUD LAKES MOBILE, AL 2819 031602040505 Aluminum 2,703
NY0001732 ALCOA - MASSENA OPERATIONS MASSENA, NY 3334 041503040502 Fluoride 2,629
TX0034738 GLADIEUX METALS RECYCLING FREEPORT, TX 3341 120402050400 Molybdenum 2,259

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