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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 2,315 0 2,315 97.8 97.8
COPPER AND COPPER COMPOUNDS 11.4 13.5 24.9 1.052 98.8
LEAD AND LEAD COMPOUNDS 19.4 4.71 23.5 0.99 99.8
ZINC AND ZINC COMPOUNDS 1.45 0.98 1.53 0.064 99.9
NAPHTHALENE 0.02 0 0.02 0.00084 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
111102070301 Fish Creek 101 0 101
111101010405 Lower Cloud Creek 101 0 101
101900080101 Headwaters Lone Tree Creek 101 0 101
071200011803 Baker Creek 15.3 4.12 18.8
170900100401 Tualatin 3.58 14.03 16.8
180701050303 Alhambra Wash-Rio Hondo 1.32 0.57 1.89
041100020104 Ladue Reservoir-Bridge Creek 0.72 0 0.72
171100140502 Puyallup River 0.24 0 0.24

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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)
38040CRFCN121IN CRAFCO INC - HALLS HALLS, TN 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
7350WRGNSP931SW ERGON ASPHALT & EMULSIONS INC - LAWTON LAWTON, OK 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
3792WRGNSP3111M ERGON ASPHALT & EMULSIONS INC - KNOXVILLE KNOXVILLE, TN 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
7220WRGNSP61SHA ERGON ASPHALT & EMULSIONS INC - LITTLE ROCK LITTLE ROCK, AR 324121 111102070301 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
3885WRGNSP35CR3 ERGON ASPHALT & EMULSIONS INC - YELLOW CREEK IUKA, MS 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
6704WRGNSP8EAST ERGON ASPHALT & EMULSIONS INC - EL DORADO EL DORADO, KS 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
18103CRFCN1680E CRAFCO INC - ALLENTOWN ALLENTOWN, PA 324121 020401060808 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
7511WRGNSP23CEA ERGON ASPHALT & EMULSIONS INC ENNIS ENNIS, TX 324121 120301050302 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
3383WRGNSP39USH ERGON ASPHALT & EMULSIONS INC - BARTOW BARTOW, FL 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
7875WRGNSP883NR ERGON ASPHALT & EMULSIONS INC - AUSTIN AUSTIN, TX 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101

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