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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 - Unassigned Waste Facility (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
Nitrogen, ammonia total (as N) 15.5  Original DMR load is 18,639 0.17 0.17
Fluoride, total (as F) 1,832 20.01 20.1
Boron, total (as B) 1,224 13.3 33.5
Selenium, total recoverable 1,032 11.2 44.8
Aluminum, total recoverable 637 6.96 51.8
Manganese, total recoverable 505 5.51 57.3
Silver total recoverable 473 5.16 62.4
Chlorine, total residual 415 4.53 67.02
Lead, total recoverable 338 3.69 70.7
Arsenic, total recoverable 308 3.36 74.08

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
050400030602 Apple Creek 0.11  Original DMR load is 18,624
050302011009 Cow Creek-Ohio River 6,202
050200020602 Limestone Run-West Fork River 806
103001010106 Blue River Outlet 567
050301020403 Mathay Run-Shenango River 349
040500020408 Macatawa Bay 208
020301010105 Furnace Brook-Hudson River 182
050200040704 Roaring Creek-Cheat River 104
050302020106 Sandy Creek-Ohio River 68.5
050200060708 Whites Creek 60.4

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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)
OH0139491 FOREST VIEW MHP WOOSTER, OH 050400030602 Ammonia as N 0.024  Original DMR load is 18,624
WV0079171 PLEASANTS WILLOW ISLAND POWER STATIONS WILLOW ISLAND, WV 050302011009 Fluoride 1,817
WV0079171 PLEASANTS WILLOW ISLAND POWER STATIONS WILLOW ISLAND, WV 050302011009 Boron 1,106
WV0079171 PLEASANTS WILLOW ISLAND POWER STATIONS WILLOW ISLAND, WV 050302011009 Selenium 1,017
WV0079171 PLEASANTS WILLOW ISLAND POWER STATIONS WILLOW ISLAND, WV 050302011009 Silver 472
WV0079171 PLEASANTS WILLOW ISLAND POWER STATIONS WILLOW ISLAND, WV 050302011009 Manganese 370
PA0100200 REYNOLDS DSPL GREENVILLE, PA 4953 050301020403 Total Residual Chlorine 347
WV0079171 PLEASANTS WILLOW ISLAND POWER STATIONS WILLOW ISLAND, WV 050302011009 Arsenic 288
WV0079171 PLEASANTS WILLOW ISLAND POWER STATIONS WILLOW ISLAND, WV 050302011009 Sulfate 240
WV0079171 PLEASANTS WILLOW ISLAND POWER STATIONS WILLOW ISLAND, WV 050302011009 Molybdenum 238

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