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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 - Paving and roofing materials (tars and asphalt) (TRI)

EPA 304M Annual Review icon — Indicates load was altered by EPA’s 304M Annual Review. You can hover over the green flag to see the original load from the TRI data.

Top Chemicals - Toxic-Weighted Pounds (TWPE) (2011)
Chemical Name Direct TRI TWPE (lb-eq/yr) Indirect TRI TWPE (lb-eq/yr) Total TRI TWPE (lb-eq/yr) % of Category TWPE Cumulative % of
Category TWPE
POLYCYCLIC AROMATIC COMPOUNDS 1,007 0 1,007 94.7 94.7
LEAD AND LEAD COMPOUNDS 19.4 8.74 28.1 2.65 97.3
COPPER AND COPPER COMPOUNDS 11.4 13.5 24.9 2.34 99.7
ZINC AND ZINC COMPOUNDS 1.45 0.98 2.19 0.206 99.9
NAPHTHALENE 0.02 0 0.02 0.0018 99.9
BENZENE 0 0.003 0.003 0.00028 99.9
XYLENE (MIXED ISOMERS) 0 0.00069 0.00069 6.51E-005 99.9
TOLUENE 0 0.00045 0.00045 4.23E-005 99.9
ETHYLBENZENE 0 0.00016 0.00016 1.59E-005 99.9

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Direct TRI TWPE (lb-eq/yr) Indirect TRI TWPE (lb-eq/yr) Total TRI TWPE (lb-eq/yr)
020401060808 Catasauqua Creek 101 0 101
102400110606 Quindaro Bend-Missouri River 101 0 101
111101010405 Lower Cloud Creek 101 0 101
101900080101 Headwaters Lone Tree Creek 101 0 101
170900100401 Tualatin 3.58 14.03 17.5
180701050303 Alhambra Wash-Rio Hondo 1.32 1.086 2.41
041100020104 Ladue Reservoir-Bridge Creek 0.72 0 0.72
171100140502 Puyallup River 0.24 0 0.24
171100120400 Lake Washington-Sammamish River 0.22 0 0.22
020503061001 Millers Run-Little Conestoga Creek 0 0.058 0.058

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Top Facility Discharges in Toxic-Weighted Pounds (TWPE) (2011)
TRI Facility ID Facility Name City, State NAICS Code HUC-12 Code Top Chemical Top Chemcical Direct TRI TWPE (lb-eq/yr) Top Chemcical Indirect TRI TWPE (lb-eq/yr) Top Chemcical Total TRI TWPE (lb-eq/yr)
38113RGNTR1989C ERGON TERMINALING INC - MEMP HIS MEMPHIS, TN 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
38040CRFCN121IN CRAFCO INC - HALLS HALLS, TN 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
8200WCRFCN325RA CRAFCO INC CHEYENNE CHEYENNE, WY 324121 101900080101 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
84054KCHMT95WES ERGON ASPHALT & EMULSIONS INC NORTH SALT LAKE NORTH SALT LAKE, UT 324121 160202040304 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
37210RGNTR1114V ERGON TERMINALING INC NASHVI LLE NASHVILLE, TN 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
7511WRGNSP23CEA ERGON ASPHALT & EMULSIONS INC ENNIS ENNIS, TX 324121 120301050302 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
38113RGNSP1655H ERGON ARMOR INC MEMPHIS MEMPHIS, TN 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
74401KCHMT2501P ERGON ASPHALT & EMULSIONS INC - MUSKOGEE MUSKOGEE, OK 324121 111101010405 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
18103CRFCN1680E CRAFCO INC - ALLENTOWN ALLENTOWN, PA 324121 020401060808 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
66115MPRBL450FU ERGON ARMOR INC - KANSAS CITY KANSAS CITY, KS 324121 102400110606 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101

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