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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) (2011)
Pollutant Name Total DMR TWPE (lb-eq/yr) % of Category TWPE Cumulative % of
Category TWPE
Sulfide 4,334 55.5 55.5
Chloride 1,382 17.7 73.3
Ammonia as N 453 5.803 79.1
Arsenic 325 4.16 83.2
Cadmium 313 4.011 87.2
Aroclor 1016 248 3.17 90.4
Molybdenum 106 1.35 91.8
Silver 84.3 1.082 92.9
Cyanide 77.5 0.99 93.9
Copper 75.9 0.97 94.8

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
050100011209 Morse Run-Allegheny River 1,362
041201010606 Town of North Kingsville-Frontal Lake Erie 514
080702010401 Cypress Bayou-Bayou Baton Rouge 405
041300010902 Fourmile Creek-Frontal Lake Ontario 323
120401040703 Vince Bayou-Buffalo Bayou 297
080903020301 Bayou Sigur-Rocky Canal 229
050200061104 Lower Sewickley Creek 154
050200030309 West Run-Monongahela River 122
071200030405 Little Calumet River 28.8
121102050606 Gertrude Lubby Lake-Petronila Creek 11.2

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Top Facility Discharges in Toxic-Weighted Pounds (TWPE) (2011)
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 4,334
PA0102784 WASTE TRMT CORP WARREN, PA 050100011209 Chloride 1,362
OH0098540 RESERVE ENVIRONMENTAL SERVICES ASHTABULA, OH 9999 041201010606 Ammonia as N 439
NY0072061 CWM CHEMICAL SERVICES - MODEL CITY SITE MODEL CITY, NY 4953 041300010902 Aroclor 1016 248
LA0038245 CLEAN HARBORS BATON ROUGE LLC BATON ROUGE, LA 4953 080702010401 Cadmium 186
LA0038245 CLEAN HARBORS BATON ROUGE LLC BATON ROUGE, LA 4953 080702010401 Arsenic 151
PA0027715 MAX ENVIRONMENTAL - YUKON FACILITY YUKON, PA 050200061104 Molybdenum 98.4
TX0091855 OILTANKING HOUSTON INC HOUSTON, TX 4953 120401040703 Cadmium 84.5

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