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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).

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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 3,624 0 3,624 99.1 99.1
COPPER AND COPPER COMPOUNDS 11.4 13.5 25.06 0.68 99.8
LEAD AND LEAD COMPOUNDS 3.93 0.57 4.51 0.12 99.9
ZINC AND ZINC COMPOUNDS 1.45 0.16 1.62 0.044 99.9
STYRENE 0.05 0 0.05 0.0013 99.9
MERCURY AND MERCURY COMPOUNDS 0 0.038 0.038 0.00105 99.9
NAPHTHALENE 0.02 0 0.02 0.00054 100

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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)
060200011202 Tennessee River-Nickajack Lake Upper 101 0 101
020401060808 Catasauqua Creek 101 0 101
020402030604 Laurel Run-Schuylkill River 101 0 101
111102070301 Fish Creek 101 0 101
060400011001 Tennessee River-Lick Creek 101 0 101
030201010201 Fishing Creek 2.45 0.14 2.601
041100020104 Ladue Reservoir-Bridge Creek 0.72 0 0.72
020503061001 Millers Run-Little Conestoga Creek 0 0.058 0.058
010900010704 Charles River-Frontal Boston Harbor 0 0 0
060300050605 Cox Creek 0 0 0

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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 Chemical Direct TRI TWPE (lb-eq/yr) Top Chemical Indirect TRI TWPE (lb-eq/yr) Top Chemical Total TRI TWPE (lb-eq/yr)
44509WLKRW912SA CRAFCO INC - YOUNGSTOWN YOUNGSTOWN, OH 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
38040CRFCN121IN CRAFCO INC - HALLS HALLS, TN 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
67801KCHMT2600B ERGON ASPHALT & EMULSIONS INC - DODGE CITY DODGE CITY, KS 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
38113RGNSP1655H ERGON ARMOR INC - MEMPHIS MEMPHIS, TN 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
38113RGNTR1989C ERGON ASPHALT & EMULSIONS INC - MEMPHIS MEMPHIS, TN 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
7875WRGNSP883NR ERGON ASPHALT & EMULSIONS INC - AUSTIN AUSTIN, TX 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
19605KCHMT3847P ERGON ASPHALT & EMULSIONS INC - READING READING, PA 324121 020402030604 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
7220WRGNSP61SHA ERGON ASPHALT & EMULSIONS INC - LITTLE ROCK LITTLE ROCK, AR 324121 111102070301 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
3792WRGNSP3111M ERGON ASPHALT & EMULSIONS INC - KNOXVILLE KNOXVILLE, TN 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101
66115MPRBL450FU ERGON ARMOR INC - KANSAS CITY KANSAS CITY, KS 324121 POLYCYCLIC AROMATIC COMPOUNDS 101 0 101

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