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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 p, 7K).

Point Source Category Information - Metal Finishing (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
PCB-1248 44,233 16.6 16.6
Copper, total recoverable 37,550 14.1 30.8
Cyanide, weak acid, dissociable 34,348 12.9 43.8
Polychlorinated biphenyls (PCBs) 25,700 9.69 53.5
Chrysene 24,431 9.22 62.7
Lead, total recoverable 16,046 6.055 68.8
Nickel, total recoverable 15,300 5.77 74.5
Silver, total (as Ag) 10,687 4.033 78.6
Cadmium, total recoverable 10,608 4.0035 82.6
Aluminum, total (as Al) 4,815 1.81 84.4

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
011000050103 East Branch Housatonic River 20,559
041300010101 Round Pond Creek-Frontal Lake Ontario 13,713
050301061202 Salt Run-Ohio River 4,205
041503010302 Raquette Point-Frontal St Lawerence River 3,913
020200080306 Wiccopee Creek-Fishkill Creek 3,728
080202040608 Portage Open Bay 2,377
020302030000 Long Island Sound Deep 746
041201040601 Twomile Creek-Niagara River 649
050200020204 Outlet Elk Creek 646
020501011105 Martin Brook-Susquehanna River 641

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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)
OH0142743 AKRON AIRDOCK FACILITY AKRON, OH 3721 Aroclor 1248 43,233
CO0032158 KODAK COLORADO DIV WINDSOR, CO 3861 Cyanide 34,347
AL0002658 US ARMY ANNISTON ARMY DEPOT ANNISTON, AL 3795 031501060506 Copper 33,717
IL0045284 UNION PACIFIC RAILROAD DUPO, IL 4011 071401010507 Chrysene 24,375
MA0003891 GENERAL ELECTRIC CO PITTSFIELD, MA 3612 011000050103 Polychlorinated biphenyls 20,559
AL0002658 US ARMY ANNISTON ARMY DEPOT ANNISTON, AL 3795 031501060506 Nickel 15,152
AL0002658 US ARMY ANNISTON ARMY DEPOT ANNISTON, AL 3795 031501060506 Lead 13,386
AL0002658 US ARMY ANNISTON ARMY DEPOT ANNISTON, AL 3795 031501060506 Cadmium 10,488
NY0001643 KODAK PARK DIVISION ROCHESTER, NY 3861 041300010101 Silver 10,417
WV0004511 WHEELING CORRUGATING CO - BEECH BOTTOM PLANT BEECH BOTTOM, WV 3479 050301061202 Chromium, Hexavalent 4,012

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