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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 - Plastics molding and forming (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
Total Residual Chlorine 1,584 87.2 87.2
Mercury 162 8.91 96.1
Ammonia as N 43.3 2.38 98.5
Copper 15.9 0.88 99.4
Zinc 8.0702 0.44 99.9
Lead 0.67 0.037 99.9
Aluminum 0.47 0.026 99.9
Selenium 0.15 0.0083 99.9
Iron 0.14 0.00807 99.9
p-Dichlorobenzene 0.12 0.0067 99.9

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
041201040601 Twomile Creek-Niagara River 1,558
051201110405 Gundy Ditch 162
020802060106 Curles Creek-James River 9.39
120401040501 Upper Sims Bayou 6.52
060101020704 Kendrick Creek-South Fork Holston River 5.33
071200030407 Grand Calumet River-Little Calumet River 1.084
020401050503 Middle Musconetcong River 1.0504
120401040101 Willow Fork 0.69
120402040100 Clear Creek-Frontal Galveston Bay 0.66
051202070901 Horse Lick-Grassy Fork 0.61

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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)
NY0001601 E I DUPONT DE NEMOURS - YERKES PLANT BUFFALO, NY 3081 041201040601 Total Residual Chlorine 1,558
NC0082295 FORTRON INDUSTRIES LLC WILMINGTON, NC 3089 030300070809 Ammonia as N 43.03
VA0003077 DUPONT TEIJIN FILMS CHESTER, VA 3081 020802060106 Total Residual Chlorine 9.28
TX0079561 RAVAGO MANUFACTURING AMERICAS HOUSTON, TX 3087 120401040501 Total Residual Chlorine 5.47
TN0064050 SILGAN PLASTIC CLOSURE SYSTEMS KINGSPORT, TN 3089 060101020704 Total Residual Chlorine 5.33
TX0103616 GSE LINING TECHNOLOGY,INC-WWTP HOUSTON, TX 3081 120401020107 Total Residual Chlorine 5.23
NC0082295 FORTRON INDUSTRIES LLC WILMINGTON, NC 3089 030300070809 Copper 3.28
TX0104710 TEXAS POLYMER SERVICES INC. ORANGE, TX 3087 120100051005 Zinc 2.53

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