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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).

Point Source Category Information - Centralized Waste Treatment (TRI)

EPA 304M Annual Review icon — Indicates load was altered by EPA’s 304M Annual Review. You can hover over the green flag to see the original load from the TRI data.

Top Chemicals - Toxic-Weighted Pounds (TWPE) (2011)
Chemical Name Direct TRI TWPE (lb-eq/yr) Indirect TRI TWPE (lb-eq/yr) Total TRI TWPE (lb-eq/yr) % of Category TWPE Cumulative % of
Category TWPE
POLYCYCLIC AROMATIC COMPOUNDS 1,314 0 1,314 50.9 50.9
LEAD AND LEAD COMPOUNDS 739 0 739 28.6 79.6
COPPER AND COPPER COMPOUNDS 227 0 227 8.79 88.4
NITRATE COMPOUNDS 179 0 179 6.94 95.3
ZINC AND ZINC COMPOUNDS 36 0 36 1.39 96.7
ETHYLENE GLYCOL 25.1 0 25.1 0.97 97.7
NICKEL AND NICKEL COMPOUNDS 23 0 23 0.89 98.6
COBALT AND COBALT COMPOUNDS 13.2 0 13.2 0.51 99.1
CHROMIUM AND CHROMIUM COMPOUNDS 7.7 0 7.7 0.29 99.4
ACETALDEHYDE 4.16 0 4.16 0.16 99.6

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Direct TRI TWPE (lb-eq/yr) Indirect TRI TWPE (lb-eq/yr) Total TRI TWPE (lb-eq/yr)
120401040703 Vince Bayou-Buffalo Bayou 224 0 224
110701020307 Clear Creek-Fall River 0 0 0

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Top Facility Discharges in Toxic-Weighted Pounds (TWPE) (2011)
TRI Facility ID Facility Name City, State NAICS Code HUC-12 Code Top Chemical Top Chemical Direct TRI TWPE (lb-eq/yr) Top Chemical Indirect TRI TWPE (lb-eq/yr) Top Chemical Total TRI TWPE (lb-eq/yr)
77704NCHSRGULFS LNVA - NORTH REGIONAL TREATMENT PLANT BEAUMONT, TX 324110 120200030406 POLYCYCLIC AROMATIC COMPOUNDS 1,314 0 1,314
77704NCHSRGULFS LNVA - NORTH REGIONAL TREATMENT PLANT BEAUMONT, TX 324110 120200030406 LEAD AND LEAD COMPOUNDS 515 0 515
77704NCHSRGULFS LNVA - NORTH REGIONAL TREATMENT PLANT BEAUMONT, TX 324110 120200030406 COPPER AND COPPER COMPOUNDS 227 0 227
77536DSPSL2525B TM DEER PARK SERVICES LP DEER PARK, TX 562211 120401040703 LEAD AND LEAD COMPOUNDS 224 0 224
77704NCHSRGULFS LNVA - NORTH REGIONAL TREATMENT PLANT BEAUMONT, TX 324110 120200030406 NITRATE COMPOUNDS 179 0 179
77704NCHSRGULFS LNVA - NORTH REGIONAL TREATMENT PLANT BEAUMONT, TX 324110 120200030406 ZINC AND ZINC COMPOUNDS 36 0 36
77704NCHSRGULFS LNVA - NORTH REGIONAL TREATMENT PLANT BEAUMONT, TX 324110 120200030406 ETHYLENE GLYCOL 25.1 0 25.1
77704NCHSRGULFS LNVA - NORTH REGIONAL TREATMENT PLANT BEAUMONT, TX 324110 120200030406 NICKEL AND NICKEL COMPOUNDS 23 0 23
77704NCHSRGULFS LNVA - NORTH REGIONAL TREATMENT PLANT BEAUMONT, TX 324110 120200030406 COBALT AND COBALT COMPOUNDS 13.2 0 13.2
77704NCHSRGULFS LNVA - NORTH REGIONAL TREATMENT PLANT BEAUMONT, TX 324110 120200030406 CHROMIUM AND CHROMIUM COMPOUNDS 7.7 0 7.7

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