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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 - Centralized waste treatment (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
Sulfide 3,397 73.6 73.6
Arsenic 332 7.18 80.7
Aroclor 1254 208 4.49 85.2
Di(2-ethylhexyl) phthalate 115 2.49 87.7
Aroclor 1242 88.8 1.92 89.7
Nickel 62.1 1.34 91.06
Ammonia as N 51.9 1.12 92.1
Aluminum 46.8 1.014 93.2
Cyanide 34.8 0.75 93.9
Manganese 33.6 0.72 94.6

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Top Receiving Watersheds (2017)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
041300010902 Fourmile Creek-Frontal Lake Ontario 304
050200030309 West Run-Monongahela River 179
080903020301 Bayou Sigur-Rocky Canal 178
121102050606 Gertrude Lubby Lake-Petronila Creek 147
120401040703 Vince Bayou-Buffalo Bayou 120
080702010401 Cypress Bayou-Bayou Baton Rouge 74.8
041201010606 Town of North Kingsville-Frontal Lake Erie 47.3
050200061104 Lower Sewickley Creek 40.5
020700080403 Limestone Branch-Potomac River 4.55
071200030405 Little Calumet River 1.63

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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)
TX0062677 LNVA-NORTH REGIONAL TREATMENT PLANT BEAUMONT, TX 2911 120200030406 Sulfide 3,397
NY0072061 CWM CHEMICAL SERVICES - MODEL CITY SITE MODEL CITY, NY 4953 041300010902 Aroclor 1254 208
TX0104400 US ECOLOGY ROBSTOWN, TX 4953 121102050606 Arsenic 147
TX0062677 LNVA-NORTH REGIONAL TREATMENT PLANT BEAUMONT, TX 2911 120200030406 Di(2-ethylhexyl) phthalate 114
LA0065501 CLEAN HARBORS WHITE CASTLE, LLC- WHITE CASTLE LANDFARM WHITE CASTLE, LA 4953 080903020301 Arsenic 94.6
NY0072061 CWM CHEMICAL SERVICES - MODEL CITY SITE MODEL CITY, NY 4953 041300010902 Aroclor 1242 88.8
LA0065501 CLEAN HARBORS WHITE CASTLE, LLC- WHITE CASTLE LANDFARM WHITE CASTLE, LA 4953 080903020301 Nickel 56.1
OH0098540 RESERVE ENVIRONMENTAL SERVICES ASHTABULA, OH 9999 041201010606 Ammonia as N 42.4
LA0038245 CLEAN HARBORS BATON ROUGE, LLC BATON ROUGE, LA 4953 080702010401 Arsenic 34.2
WV0075752 FORT MARTIN POWER STATION MAIDSVILLE, WV 4953 050200030309 Manganese 33.6

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