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Discharge Monitoring Report (DMR) Pollutant Loading Tool

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 (PDF) (169 pp, 2MB) 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 (PDF) (241 pp, 3.3MB).

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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, total (as S) 4,334 55.2 55.2
Chloride (as Cl) 1,382 17.6 72.8
Nitrogen, ammonia total (as N) 453 5.76 78.6
Arsenic, total (as As) 378 4.82 83.4
Cadmium, total (as Cd) 317 4.0407 87.4
PCB-1016 248 3.16 90.6
Molybdenum, total (as Mo) 106 1.34 91.9
Silver, total (as Ag) 84.3 1.075 93.07
Copper, total (as Cu) 76.3 0.97 94.04
Lead, total (as Pb) 55.9 0.71 94.7

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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 431
041300010902 Fourmile Creek-Frontal Lake Ontario 323
120401040703 Vince Bayou-Buffalo Bayou 299
080903020301 Bayou Sigur-Rocky Canal 249
050200061104 Lower Sewickley Creek 154
050200030309 West Run-Monongahela River 119
071200030405 Little Calumet River 28.9
121102050606 Gertrude Lubby Lake-Petronila Creek 13.04

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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 PLANT REGIONAL TREATMENT PLANT BEAUMONT, TX 2911 120200030406 Sulfide, total (as S) 4,334
PA0102784 WASTE TRMT CORP WARREN, PA 4953 050100011209 Chloride (as Cl) 1,362
OH0098540 RESERVE ENVIRONMENTAL SERVICES INC * ASHTABULA, OH 041201010606 Nitrogen, ammonia total (as N) 439
LA0038245 CLEAN HARBORS BATON ROUGE LLC BATON ROUGE, LA 4953 080702010401 Cadmium, total (as Cd) 188
LA0038245 CLEAN HARBORS BATON ROUGE LLC BATON ROUGE, LA 4953 080702010401 Arsenic, total (as As) 176
LA0065501 CLEAN HARBORS WHITE CASTLE, LLC- WHITE CASTLE LANDFARM WHITE CASTLE, LA 4953 080903020301 Arsenic, total (as As) 143
PA0027715 MAX ENVIRONMENTAL - YUKON FACILITY YUKON, PA 4953 050200061104 Molybdenum, total (as Mo) 98.4
TX0091855 OILTANKING HOUSTON INC HOUSTON, TX 4953 120401040703 Cadmium, total (as Cd) 85.7
TX0030937 VOPAK LOGISTICS SERVICES - DEER PARK TERMINAL LA PORTE, TX 4953 120401040703 Silver, total (as Ag) 54.4

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