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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 - Ore mining and dressing (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
Lead, total recoverable 35,305  Original DMR load is 38,268,435 32.1 32.1
Cadmium, total recoverable 3,156  Original DMR load is 5,273,414 2.87 35.04
Zinc, total recoverable 3,609  Original DMR load is 2,222,295 3.28 38.3
Copper, total recoverable 1,990  Original DMR load is 314,525 1.81 40.1
Arsenic, total recoverable 5,522  Original DMR load is 93,939 5.0307 45.1
Fluoride, total (as F) 19,948 18.1 63.3
Arsenic, total (as As) 6,273 5.71 69.06
Molybdenum, total (as Mo) 5,689 5.18 74.2
Ammonia (as N) + unionized ammonia 0.105  Original DMR load is 5,005 9.57E-005 74.2
Copper, total (as Cu) 4,560 4.15 78.4

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
071401020402 Crooked Creek-Huzzah Creek 7,306  Original DMR load is 20,479,115
110100070102 Bee Fork 12,525  Original DMR load is 12,476,834
110100070101 Upper West Fork Black River 7,998  Original DMR load is 7,965,504
110100070103 Middle West Fork Black River 5,817  Original DMR load is 5,151,807
110100070301 Strother Creek 6,470
071401020302 Indian Creek-Courtois Creek 1,726
040301100109 Green Creek 1,518
031002040202 Mined Area-Alafia River 1,231
101202020207 Upper Whitewood Creek 1,181
031001010403 Lower Payne Creek 1,055

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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)
MO0100226 THE DOE RUN COMPANY - VIBURNUM FACILITY VIBURNUM, MO 1031 071401020402 Lead 6,432  Original DMR load is 14,975,002
MO0001856 FLETCHER MINE/MILL BUNKER, MO 1031 110100070102 Lead 12,477  Original DMR load is 12,476,786
MO0001848 BRUSHY CREEK MINE/MILL BUNKER, MO 1031 110100070101 Lead 6,835  Original DMR load is 6,835,425
MO0100218 DOE RUN CO WEST FORK FACILITY THE BUNKER, MO 1031 110100070103 Lead 4,394  Original DMR load is 3,976,055
MO0100226 THE DOE RUN COMPANY - VIBURNUM FACILITY VIBURNUM, MO 1031 071401020402 Cadmium 521  Original DMR load is 3,872,639
MO0100226 THE DOE RUN COMPANY - VIBURNUM FACILITY VIBURNUM, MO 1031 071401020402 Zinc 133  Original DMR load is 1,405,955
MO0100218 DOE RUN CO WEST FORK FACILITY THE BUNKER, MO 1031 110100070103 Cadmium 942  Original DMR load is 866,876
MO0001848 BRUSHY CREEK MINE/MILL BUNKER, MO 1031 110100070101 Zinc 561  Original DMR load is 560,516
MO0001848 BRUSHY CREEK MINE/MILL BUNKER, MO 1031 110100070101 Cadmium 533  Original DMR load is 532,738
MO0100218 DOE RUN CO WEST FORK FACILITY THE BUNKER, MO 1031 110100070103 Zinc 321  Original DMR load is 253,230

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