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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 more information on the types of errors identified, see EPA's Technical Support Document for the 2010 Effluent Guidelines Program (PDF) (255 pp, 3.4MB). Because of this review, and EPA's methodology for interpreting data and calculating loads (explained in EPA's Technical Support Document for the Annual Review of Existing Effluent Guidelines and Identification of Potential New Point Source Categories), the calculated loads and category rankings may differ using DMR and TRI data that has not been updated. Data that have been updated by EPA's annual reviews are flagged by green flags designating that a change has been made to a concentration, quantity, or flow value. View a listing of the changes for the most recent annual review (PDF) (1 pg, 7K).

Point Source Category Information - Copper 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
Copper, total (as Cu) 2,212 84.3 84.3
Zinc, total (as Zn) 66.7 2.54 86.9
Chloride (as Cl) 62.7 2.39 89.3
Silver, total (as Ag) 57.6 2.19 91.5
Cyanide, weak acid, dissociable 49.1 1.87 93.3
Aluminum, total (as Al) 44.1 1.68 95.06
Lead, total recoverable 43.9 1.67 96.7
Selenium, total recoverable 22.6 0.86 97.6
Nickel, total (as Ni) 19.8 0.75 98.3
Iron, total (as Fe) 11.3 0.43 98.7

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
071100090403 City of Woodriver-Mississippi River 1,300
050301010307 McCabe Run-Ohio River 562
011000051205 Long Meadow Pond Brook-Naugatuck River 81.4
010900030103 Quinsigamond River 75.7
051201030511 Boots Creek-Mississinewa River 48.7
080202050401 Indian Creek-L'Anguille River 22.6
010900020401 Acushnet River-Frontal Buzzards Bay 12.2
041000030302 Cogswell Cemetery-St Joseph River 7.9003
120401040201 Langham Creek 6.409
011000051207 Bladens River-Naugatuck River 5.45

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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)
IL0000230 OLIN CORP WINCHESTER MAIN PLANT EAST ALTON, IL 3351 071100090403 Copper 1,126
PA0000566 HUSSEY COPPER LTD LEETSDALE, PA 3351 050301010307 Copper 562
NY0005665 REVERE COPPER PRODUCTS INC ROME, NY 3351 020200040301 Copper 477
IL0000230 OLIN CORP WINCHESTER MAIN PLANT EAST ALTON, IL 3351 071100090403 Chloride 62.7
CT0021873 SOMERS THIN STRIP (OLIN) WATERBURY, CT 3351 011000051205 Silver 57.6
IL0000230 OLIN CORP WINCHESTER MAIN PLANT EAST ALTON, IL 3351 071100090403 Cyanide 49.1
MA0004341 WYMAN GORDON PLANT NORTH GRAFTON, MA 3463 010900030103 Aluminum 44.1
IL0000230 OLIN CORP WINCHESTER MAIN PLANT EAST ALTON, IL 3351 071100090403 Zinc 42.9
AR0049476 MUELLER COPPER TUBE PRODUCTS INC WYNNE, AR 3351 080202050401 Selenium 22.6

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