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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
Vanadium 54,502 36.7 36.7
Cadmium 44,012 29.6 66.4
Lead 22,471 15.1 81.5
Aluminum 7,987 5.38 86.9
Fluoride 5,921 3.99 90.9
Arsenic 2,382 1.606 92.5
Zinc 2,247 1.51 94.07
Molybdenum 2,166 1.46 95.5
Copper 1,405 0.94 96.4
Polychlorinated biphenyls 1,286 0.86 97.3

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Top Receiving Watersheds (2017)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
080401010806 Lake Hamilton Dam 53,454
051302050308 Cummings Creek-Cumberland River 37,325
071401020402 Crooked Creek-Huzzah Creek 28,955
120402050400 Lower Oyster Creek 4,472
060102010108 Pistol Creek 3,565
041503040502 McConnell Creek-Grass River 3,168
031602040505 Tensaw River-Apalachee River 2,419
051402060701 Bayou Creek-Ohio River 1,286
051402011203 Cowhide Slough-Ohio River 1,136
031002060301 Palm River 1,073

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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)
AR0000523 EVRAZ STRATCOR INC HOT SPRINGS, AR 3339 080401010806 Vanadium 53,371
TN0029157 NYRSTAR CLARKSVILLE INC CLARKSVILLE, TN 3339 051302050308 Cadmium 33,893
MO0000337 BUICK RESOURCE RECYCLING FACILITY BOSS, MO 3341 071401020402 Lead 17,119
MO0000337 BUICK RESOURCE RECYCLING FACILITY BOSS, MO 3341 071401020402 Cadmium 9,631
AL0066052 SANDERS LEAD COMPANY INCORPORATED TROY, AL 3341 031403010205 Lead 2,960
NY0001732 ALCOA MASSENA OPERATIONS MASSENA, NY 3334 041503040502 Fluoride 2,343
TN0065081 ALCOA INC.-SOUTH PLANT ALCOA, TN 3334 060102010108 Aluminum 2,335
AL0002976 MUD LAKES MOBILE, AL 2819 031602040505 Aluminum 2,196
TX0034738 GLADIEUX METALS RECYCLING FREEPORT, TX 3341 120402050400 Molybdenum 1,972
TN0029157 NYRSTAR CLARKSVILLE INC CLARKSVILLE, TN 3339 051302050308 Zinc 1,753

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