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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 information on the methodology and types of changes identified, see EPA's most recent odd-numbered year Annual Effluent Guidelines Review Report (PDF) (169 pp, 2MB) 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 (PDF) (241 pp, 3.3MB).

Point Source Category Information - Explosives manufacturing (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
Ammonia as NH3 4,418 39.8 39.8
Nitrogen, nitrate dissolved 3,226 29.1 69.03
Cyanide 1,358 12.2 81.2
Aluminum 1,263 11.4 92.7
Ammonia as N 440 3.96 96.6
Lead 185 1.67 98.3
Copper 70.6 0.63 98.9
Total Residual Chlorine 43.4 0.39 99.3
Sulfate 41.3  Original DMR load is 41.3 0.37 99.7
Nickel 14.3 0.12 99.8

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
110702070607 Webb City-Center Creek 8,909
050500011806 Dry Branch-New River 1,678  Original DMR load is 1,678
051402050302 Montgomery Creek-Tradewater River 424
120402050300 Austin Bayou 43.4
060300051002 Colbert Creek-Pickwick Lake 14.9
071100040601 Headwaters Kiser Creek 0.16
050901010302 Headwaters Elk Fork 0.0028

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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)
MO0002402 DYNO NOBEL INC - CARTHAGE PL ANT CARTHAGE, MO 2892 110702070607 Ammonia as NH3 4,416
MO0002402 DYNO NOBEL INC - CARTHAGE PL ANT CARTHAGE, MO 2892 110702070607 Nitrogen, nitrate dissolved 3,226
VA0000248 US ARMY RADFORD ARMY AMMUNITION PLANT RADFORD, VA 2892 050500011806 Cyanide 1,358
MO0002402 DYNO NOBEL INC - CARTHAGE PL ANT CARTHAGE, MO 2892 110702070607 Aluminum 1,263
KY0097446 MINE EQUIPMENT & MILL SUPPLY, CO DAWSON SPRINGS, KY 2892 051402050302 Ammonia as N 424
VA0000248 US ARMY RADFORD ARMY AMMUNITION PLANT RADFORD, VA 2892 050500011806 Lead 185
VA0000248 US ARMY RADFORD ARMY AMMUNITION PLANT RADFORD, VA 2892 050500011806 Copper 70.6
TX0078646 SCHLUMBERGER ROSHARON CAMPUS ROSHARON, TX 2892 120402050300 Total Residual Chlorine 43.4
VA0000248 US ARMY RADFORD ARMY AMMUNITION PLANT RADFORD, VA 2892 050500011806 Sulfate 38.05  Original DMR load is 38.05
AL0067229 NELSON BROTHERS LLC - CHEROKEE CHEROKEE, AL 2892 060300051002 Ammonia as N 14.9

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