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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 Products and Machinery (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
Fluoranthene 2,876 69.2 69.2
Carbon disulfide 1,000 24.05 93.2
Pyrene 202 4.86 98.1
Trichloroethylene 24.4 0.58 98.7
Tetrachloroethylene 20.7 0.49 99.2
Acrolein 15.4 0.37 99.6
1,1-Dichloroethylene 3.62 0.087 99.7
Phenol 2.87 0.069 99.7
Anthracene 2.69 0.064 99.8
Chloroform 2.56 0.061 99.8

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
041300010703 Headwaters Eighteenmile Creek 23.09
050301061202 Salt Run-Ohio River 15.4
041300010101 Round Pond Creek-Frontal Lake Ontario 4.308
080902030201 Morrison Canal 2.66
050200020204 Outlet Elk Creek 1.58
050500080304 Scary Creek-Kanawha River 0.17
050400040806 Oilspring Run-Muskingum River 0.11
020700110106 Tank Creek-Potomac River 0.077
020501011105 Martin Brook-Susquehanna River 0.016
080302010404 Jasper Creek 0.015

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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)
IL0045284 UNION PACIFIC RAILROAD DUPO, IL 4011 071401010507 Fluoranthene 2,874
NE0114391 VISHAY DALE PLANT 6 COLUMBUS, NE 3625 102002010302 Carbon disulfide 1,000
IL0045284 UNION PACIFIC RAILROAD DUPO, IL 4011 071401010507 Pyrene 202
NY0000558 GM COMPONENTS HOLDINGS LLC LOCKPORT, NY 3714 041300010703 Tetrachloroethylene 19.9
WV0020371 ALLEGANY BALLISTICS LABORATORY KEYSER, WV 3764 Trichloroethylene 18.3
NY0001643 KODAK PARK DIVISION ROCHESTER, NY 3861 041300010101 1,1-Dichloroethylene 3.48
NY0000558 GM COMPONENTS HOLDINGS LLC LOCKPORT, NY 3714 041300010703 Trichloroethylene 3.13
MO0115703 KCSRC, ONE SPOT REPAIR KANSAS CITY, MO 4011 103001010301 Phenol 2.86
LA0052256 NASA MICHOUD ASSEMBLY FACILITY LOCKHEED MARTIN NEW ORLEANS, LA 3764 080902030201 Trichloroethylene 2.66

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