Jump to main content or area navigation.

Contact Us

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 - Electrical and electronic components (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
NITRATE COMPOUNDS 1,112 396 1,508 43.2 43.2
COPPER AND COPPER COMPOUNDS 380 350 730 20.9 64.1
CADMIUM AND CADMIUM COMPOUNDS 0 578 578 16.5 80.7
AMMONIA 5.33 430 435 12.4 93.1
ETHYLENE GLYCOL 0.52 100 101 2.88 96.05
LEAD AND LEAD COMPOUNDS 38.5 37.4 75.9 2.17 98.2
MERCURY AND MERCURY COMPOUNDS 0 25.7 25.7 0.73 98.9
CERTAIN GLYCOL ETHERS 0 19.4 19.4 0.55 99.5
NITRIC ACID 0.18 11.9 12.1 0.34 99.8
NICKEL AND NICKEL COMPOUNDS 0.6 1.86 2.46 0.0705 99.9

Download All Data

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)
020200080306 Wiccopee Creek-Fishkill Creek 1,109 0 1,109
170900120202 Willamette River 291 0.038 291
120401040401 Keegans Bayou-Brays Bayou 0.18 75.6 75.8
170900120301 Lower Willamette 0 61.2 61.2
170900100404 Tualatin 0 59.01 59.01
030202010801 Upper Crabtree Creek 0 26.6 26.6
050200061102 Upper Sewickley Creek 23.01 0 23.01
020501050503 Lower Newtown Creek 13.48 7.75 21.2
071100090105 Lower Dardenne Creek 0 18.07 18.07
110200030303 City of Colorado Springs-Fountain Creek 0 17.01 17.01

Download All Data

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)
12533BM EASTF IBM CORP HOPEWELL JUNCTION, NY 334413 020200080306 NITRATE COMPOUNDS 704 0 704
43551FRSTS2811C FIRST SOLAR INC PERRYSBURG, OH 334413 CADMIUM AND CADMIUM COMPOUNDS 0 578 578
12533BM EASTF IBM CORP HOPEWELL JUNCTION, NY 334413 020200080306 COPPER AND COPPER COMPOUNDS 367 0 367
97210WCKRS7200N SILTRONIC CORP PORTLAND, OR 334413 170900120202 NITRATE COMPOUNDS 291 0.038 291
78754SMSNG12100 SAMSUNG AUSTIN SEMICONDUCTOR AUSTIN, TX 334413 120903010106 AMMONIA 0 115 115
05452BM 1000R IBM CORP ESSEX JUNCTION, VT 334413 020100030704 NITRATE COMPOUNDS 94.07 0 94.07
75243TXSNS13500 TEXAS INSTRUMENTS INC DALLAS, TX 334413 COPPER AND COPPER COMPOUNDS 0 81.3 81.3
77477TXSNS12201 TEXAS INSTRUMENTS INC STAFFORD, TX 334413 120401040401 COPPER AND COPPER COMPOUNDS 0 75.6 75.6
97124KMTSS25300 SOLARWORLD INDUSTRIES AMERICA INC HILLSBORO, OR 334413 NITRATE COMPOUNDS 0 74.5 74.5
85024SMTMS19801 SUMCO SOUTHWEST CORP PHOENIX, AZ 334413 NITRATE COMPOUNDS 0 74.5 74.5

Download All Data

Top of Page

About the Data Glossary Error Correction Contact Us

Jump to main content.