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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 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 - Steam electric power generating (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
COPPER AND COPPER COMPOUNDS 136,727 0.39 136,727 29.6 29.6
ARSENIC AND ARSENIC COMPOUNDS 105,834 2.73 105,837 22.9 52.5
MANGANESE AND MANGANESE COMPOUNDS 50,416 0.68 50,417 10.9 63.4
SELENIUM AND SELENIUM COMPOUNDS 42,318 0 42,318 9.16 72.6
MERCURY AND MERCURY COMPOUNDS 42,298 15.7 42,314 9.16 81.8
LEAD AND LEAD COMPOUNDS 37,353 105 37,458 8.11 89.9
VANADIUM AND VANADIUM COMPOUNDS 17,537 0.27 17,537 3.79 93.7
THALLIUM AND THALLIUM COMPOUNDS 11,959 0 11,959 2.59 96.3
NICKEL AND NICKEL COMPOUNDS 5,046 0.509 5,046 1.093 97.4
ZINC AND ZINC COMPOUNDS 4,128 1.58 4,130 0.89 98.3

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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)
050902031010 McCools Creek-Ohio River 26,719 0 26,719
071402040908 Baldwin Lake-Kaskaskia River 18,665 0 18,665
041000020410 Willow Run at mouth 17,279 0 17,279
051100030503 Jacobs Creek-Green River 17,079 0 17,079
050100090304 Chartiers Run-Allegheny River 15,478 0 15,478
101301010104 Alderin Creek-Missouri River 15,004 0 15,004
051401010904 Fall Run-Ohio River 12,963 0 12,963
051302050403 Big Elk Creek-Cumberland River 12,390 0 12,390
060102080408 Emory River Lower 10,111 0 10,111
050100071002 Baldwin Creek-Conemaugh River 8,759 0 8,759

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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)
15024CHSWCPITTS CHESWICK POWER PLANT SPRINGDALE, PA 221112 050100090304 LEAD AND LEAD COMPOUNDS 14,742 0 14,742
58571GRTRV4001H GREAT RIVER ENERGY STANTON STATION STANTON, ND 221112 101301010104 COPPER AND COPPER COMPOUNDS 12,299 0 12,299
43913CRDNL306CO AMERICAN ELECTRIC POWER CARDINAL PLANT BRILLIANT, OH 221112 ARSENIC AND ARSENIC COMPOUNDS 12,145 0 12,145
41045KNTCKUS42P KENTUCKY UTILITIES CO GHENT STATION GHENT, KY 221112 050902031010 SELENIUM AND SELENIUM COMPOUNDS 11,670 0 11,670
31046SCHRR10986 SCHERER STEAM ELECTRIC GENERATING PLANT JULIETTE, GA 221112 030701031307 COPPER AND COPPER COMPOUNDS 10,591 0 10,591
35186LBMPWHWY25 GASTON STEAM PLANT WILSONVILLE, AL 221112 031501070304 ARSENIC AND ARSENIC COMPOUNDS 10,410 0 10,410
47025TNNRSAEPDR AMERICAN ELECTRIC POWER TANNERS CREEK PLANT LAWRENCEBURG, IN 221112 ARSENIC AND ARSENIC COMPOUNDS 9,022 2.42 9,024
62217LLNSP1901B BALDWIN ENERGY COMPLEX BALDWIN, IL 221112 071402040908 MERCURY AND MERCURY COMPOUNDS 8,602 0 8,602
41045KNTCKUS42P KENTUCKY UTILITIES CO GHENT STATION GHENT, KY 221112 050902031010 ARSENIC AND ARSENIC COMPOUNDS 7,537 0 7,537
30120BWNST317CO BOWEN STEAM ELECTRIC GENERATING PLANT CARTERSVILLE, GA 221112 031501041304 COPPER AND COPPER COMPOUNDS 7,476 0 7,476

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