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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
Iron 2,988 29.03 29.03
Di(2-ethylhexyl) phthalate 2,653 25.7 54.8
Lead 2,006 19.4 74.3
Total Residual Chlorine 1,586 15.4 89.7
Copper 664 6.44 96.1
Mercury 152 1.47 97.6
Zinc 128 1.24 98.8
Cadmium 70.07 0.68 99.5
Ammonia as N 43.6 0.42 99.9
Aluminum 0.47 0.0045 99.9

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
071300090509 Clear Creek-Kickapoo Creek 2,988
060300050703 Lower Spring Creek 2,653
041201040601 Twomile Creek-Niagara River 1,558
051201110601 Spring Creek 152
050902030103 Sharon Creek-Mill Creek 105
010900040607 North Branch Pawtuxet River 39.3
020802060106 Curles Creek-James River 9.45
050901030105 Pond Run-Ohio River 8.91
120401040501 Upper Sims Bayou 6.51
060101020704 Kendrick Creek-South Fork Holston River 5.33

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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)
IL0064939 HYPONEX MORRISON, IL 3081 071300090509 Iron 2,988
AL0050377 FLEXCO CORPORATION TUSCUMBIA, AL 3089 060300050703 Di(2-ethylhexyl) phthalate 2,653
AL0079715 PIKE COUNTY PLANT TROY, AL 3089 031402020405 Lead 1,964
NY0001601 E I DUPONT DE NEMOURS - YERKES PLANT BUFFALO, NY 3081 041201040601 Total Residual Chlorine 1,558
AL0079715 PIKE COUNTY PLANT TROY, AL 3089 031402020405 Copper 616
AL0079715 PIKE COUNTY PLANT TROY, AL 3089 031402020405 Zinc 112
OH0009296 FORMICA CORP CINCINNATI, OH 3089 050902030103 Cadmium 70.07
NC0082295 FORTRON INDUSTRIES LLC WILMINGTON, NC 3089 030300050501 Ammonia as N 43.03
OH0009296 FORMICA CORP CINCINNATI, OH 3089 050902030103 Lead 34.9

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