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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 - Inorganic chemicals manufacturing (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
DIAMINOTOLUENE (MIXED ISOMERS) 0 7,229 7,229 45.9 45.9
ARSENIC AND ARSENIC COMPOUNDS 6,088 0 6,088 38.6 84.5
O-TOLUIDINE 0 1,668 1,668 10.5 95.1
DINITROTOLUENE (MIXED ISOMERS) 0 532 532 3.37 98.5
NITRIC ACID 0 75.2 75.2 0.47 99.02
NICKEL AND NICKEL COMPOUNDS 0 30.8 30.8 0.19 99.2
AMMONIA 0.11 22.6 22.8 0.14 99.3
CHROMIUM AND CHROMIUM COMPOUNDS 18.62 0 18.62 0.11 99.4
CYANIDE COMPOUNDS 0 18.05 18.05 0.11 99.5
LEAD AND LEAD COMPOUNDS 0 15.3 15.3 0.097 99.6

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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)
120401040703 Vince Bayou-Buffalo Bayou 0 9,577 9,577
080702010401 Cypress Bayou-Bayou Baton Rouge 15.2 0 15.2
020402030611 Sixpenny Creek-Schuylkill River 0 6.73 6.73
050301010303 Kilbuck Run-Ohio River 3.15 0.55 3.704
180701060102 Lower Dominguez Channel 0 2.64 2.64
040400010603 Calumet River-Frontal Lake Michigan 0 0.34 0.34
020402030101 Headwaters Little Schuylkill River 0.21 0 0.21
080902030202 Bayou Sauvage-Frontal Chef Menteur Pass 0.108 0 0.108
020301030805 Second River-Passaic River 0 0.097 0.097
080702040201 St James Parish Canal 0.058 0 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 Chemical Direct TRI TWPE (lb-eq/yr) Top Chemical Indirect TRI TWPE (lb-eq/yr) Top Chemical Total TRI TWPE (lb-eq/yr)
77506RPRDC1423H AIR PRODUCTS LLC PASADENA, TX 325120 120401040703 DIAMINOTOLUENE (MIXED ISOMERS) 0 7,229 7,229
70734LLDSGHWY31 HONEYWELL INTERNATIONAL INC GEISMAR PLANT CARVILLE, LA 325120 ARSENIC AND ARSENIC COMPOUNDS 6,088 0 6,088
77506RPRDC1423H AIR PRODUCTS LLC PASADENA, TX 325120 120401040703 O-TOLUIDINE 0 1,668 1,668
77506RPRDC1423H AIR PRODUCTS LLC PASADENA, TX 325120 120401040703 DINITROTOLUENE (MIXED ISOMERS) 0 532 532
77506RPRDC1423H AIR PRODUCTS LLC PASADENA, TX 325120 120401040703 NITRIC ACID 0 75.2 75.2
77506RPRDC1423H AIR PRODUCTS LLC PASADENA, TX 325120 120401040703 NICKEL AND NICKEL COMPOUNDS 0 30.8 30.8
77506RPRDC1423H AIR PRODUCTS LLC PASADENA, TX 325120 120401040703 CYANIDE COMPOUNDS 0 18.05 18.05
70734LLDSGHWY31 HONEYWELL INTERNATIONAL INC GEISMAR PLANT CARVILLE, LA 325120 CHROMIUM AND CHROMIUM COMPOUNDS 17.71 0 17.71
74362TCHMN6THHU CABOT NORIT AMERICAS INC PRYOR, OK 325998 POLYCYCLIC AROMATIC COMPOUNDS 0 15.3 15.3
77506RPRDC1423H AIR PRODUCTS LLC PASADENA, TX 325120 120401040703 AMMONIA 0 15.1 15.1

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