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Discharge Monitoring Report (DMR) Pollutant Loading Tool

The Loading Tool is being transitioned into ECHO to increase user access to data and streamline site maintenance. The beta version is now available for testing. EPA plans to retire this site in late November 2017. Current site functionality will be available in ECHO.

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 information on the methodology and types of changes identified, see EPA's most recent odd-numbered year Annual Effluent Guidelines Review Report on the Effluent Guidelines Plan webpage. Because of this review and EPA's methodology for interpreting data and calculating loads, the calculated loads and category rankings may differ from original calculations using DMR and TRI data that have not been updated. Data that have been updated by EPA's annual reviews are indicated by green flags designating that a change has been made to a concentration, quantity, or flow value. A listing of the DMR and TRI data changes from the most recent annual review is available in the Annual Effluent Guidelines Review Report Appendices.

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 1,060,617  Original DMR load is 5,256,373 84.09 84.09
Cadmium 93,461  Original DMR load is 974,099 7.41 91.5
Zinc 24,083  Original DMR load is 244,048 1.909 93.4
Copper 22,647  Original DMR load is 233,355 1.79 95.2
Arsenic 9,692  Original DMR load is 18,127 0.76 95.9
Fluoride 17,095 1.35 97.3
Ammonia as N 13,631  Original DMR load is 13,631 1.0808 98.4
Manganese 7,623 0.604 99.01
Molybdenum 5,698 0.45 99.4
Nickel 2,037  Original DMR load is 2,038 0.16 99.6

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
110100070103 Middle West Fork Black River 5,653  Original DMR load is 5,101,598
071401020402 Crooked Creek-Huzzah Creek 1,166,294  Original DMR load is 1,577,413
110100070102 Bee Fork 11,363
110100070101 Upper West Fork Black River 7,587
110100070301 Strother Creek 6,315
040101020105 Lower Beaver River 5,023
170501110105 James Creek-Middle Fork Boise River 1,980
071401020302 Indian Creek-Courtois Creek 1,609
080202020102 Saline Creek-Little St Francis River 1,455
101202020207 Upper Whitewood Creek 1,039

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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)
MO0100218 DOE RUN WEST FORK GRAVEL OPERATION BUNKER, MO 1031 110100070103 Lead 4,301  Original DMR load is 3,975,961
MO0100226 VIBURNUM WW LAGOON VIBURNUM, MO 1031 071401020402 Lead 1,031,887  Original DMR load is 1,255,982
MO0100218 DOE RUN WEST FORK GRAVEL OPERATION BUNKER, MO 1031 110100070103 Cadmium 929  Original DMR load is 854,996
MO0100218 DOE RUN WEST FORK GRAVEL OPERATION BUNKER, MO 1031 110100070103 Zinc 268  Original DMR load is 216,033
MO0100226 VIBURNUM WW LAGOON VIBURNUM, MO 1031 071401020402 Copper 16,105  Original DMR load is 172,358
MO0100226 VIBURNUM WW LAGOON VIBURNUM, MO 1031 071401020402 Cadmium 85,101  Original DMR load is 111,673
MO0100218 DOE RUN WEST FORK GRAVEL OPERATION BUNKER, MO 1031 110100070103 Copper 60.4  Original DMR load is 54,513
MO0100226 VIBURNUM WW LAGOON VIBURNUM, MO 1031 071401020402 Zinc 19,598  Original DMR load is 23,798
CO0000248 CLIMAX MINE SUMMIT COUNTY, CO 1061 140100020303 Fluoride 16,192
MO0100226 VIBURNUM WW LAGOON VIBURNUM, MO 1031 071401020402 Ammonia as N 13,602

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