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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 - Soap and detergent manufacturing (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
Hexachlorobenzene 41,944 89.08 89.08
Benzo[a]pyrene 2,168 4.604 93.6
Chrysene 668 1.41 95.1
Benz[a]anthracene 661 1.403 96.5
Benzo[k]fluoranthene 660 1.402 97.9
Benzo(b)fluoranthene 660 1.402 99.3
Anthracene 54.6 0.11 99.4
Acrylonitrile 48.8 0.103 99.5
Zinc 34.8 0.074 99.6
Fluoranthene 27.5 0.058 99.6

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
071200040905 Des Plaines River 46,994
010900010901 Monatiquot River-Frontal Quincy Bay 33.1
020301040204 Morses Creek-Arthur Kill 22.9
020301030906 Lower Hackensack River 16.7
040400010603 Calumet River-Frontal Lake Michigan 7.46
071300030304 Pekin Lake-Illinois River 5.71
020600031202 Curtis Creek-Curtis Bay 0.81
050800020904 Dry Run-Great Miami River 0.034

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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)
IL0002453 STEPAN COMPANY ELWOOD, IL 2843 071200040905 Hexachlorobenzene 41,944
IL0002453 STEPAN COMPANY ELWOOD, IL 2843 071200040905 Benzo[a]pyrene 2,168
IL0002453 STEPAN COMPANY ELWOOD, IL 2843 071200040905 Chrysene 668
IL0002453 STEPAN COMPANY ELWOOD, IL 2843 071200040905 Benz[a]anthracene 661
IL0002453 STEPAN COMPANY ELWOOD, IL 2843 071200040905 Benzo[k]fluoranthene 660
IL0002453 STEPAN COMPANY ELWOOD, IL 2843 071200040905 Benzo(b)fluoranthene 660
IL0002453 STEPAN COMPANY ELWOOD, IL 2843 071200040905 Anthracene 54.6
IL0002453 STEPAN COMPANY ELWOOD, IL 2843 071200040905 Acrylonitrile 48.8
IL0002453 STEPAN COMPANY ELWOOD, IL 2843 071200040905 Fluoranthene 27.5

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