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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 3,773 71.5 71.5
Arsenic 465 8.81 80.3
Aroclor 1254 249 4.72 85.08
Di(2-ethylhexyl) phthalate 139 2.62 87.7
Aroclor 1242 107 2.021 89.7
Nickel 76.4 1.45 91.1
Ammonia as N 65.3 1.23 92.4
Aluminum 49.6 0.94 93.3
Cyanide 37.8 0.71 94.08
Cadmium 37.6 0.71 94.7

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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 365
080903020301 Bayou Sigur-Rocky Canal 245
121102050606 Gertrude Lubby Lake-Petronila Creek 218
050200030309 West Run-Monongahela River 188
120401040703 Vince Bayou-Buffalo Bayou 138
080702010401 Cypress Bayou-Bayou Baton Rouge 89.8
041201010606 Town of North Kingsville-Frontal Lake Erie 56.7
050200061104 Lower Sewickley Creek 48.8
020700080403 Limestone Branch-Potomac River 5.47
071200030405 Little Calumet River 1.95

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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 3,773
NY0072061 CWM CHEMICAL SERVICES - MODEL CITY SITE MODEL CITY, NY 4953 041300010902 Aroclor 1254 249
TX0104400 US ECOLOGY ROBSTOWN, TX 4953 121102050606 Arsenic 218
LA0065501 CLEAN HARBORS WHITE CASTLE, LLC- WHITE CASTLE LANDFARM WHITE CASTLE, LA 4953 080903020301 Arsenic 146
TX0062677 LNVA-NORTH REGIONAL TREATMENT PLANT BEAUMONT, TX 2911 120200030406 Di(2-ethylhexyl) phthalate 137
NY0072061 CWM CHEMICAL SERVICES - MODEL CITY SITE MODEL CITY, NY 4953 041300010902 Aroclor 1242 107
LA0065501 CLEAN HARBORS WHITE CASTLE, LLC- WHITE CASTLE LANDFARM WHITE CASTLE, LA 4953 080903020301 Nickel 69.3
OH0098540 RESERVE ENVIRONMENTAL SERVICES ASHTABULA, OH 9999 041201010606 Ammonia as N 53.6
LA0038245 SAFETY KLEEN (BATON ROUGE), INC. BATON ROUGE, LA 4953 080702010401 Arsenic 41.08
WV0075752 FORT MARTIN POWER STATION MAIDSVILLE, WV 4953 050200030309 Manganese 35.4

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