SELECT DISTINCT P.PSC_DESC, TR.CHEMICAL_NAME, DECODE (SUM (DIRECT_TWPE), NULL, 0, SUM (DIRECT_TWPE)) AS DIRECT_TWPE, DECODE (SUM (INDIRECT_TWPE), NULL, 0, SUM (INDIRECT_TWPE)) AS INDIRECT_TWPE, DECODE (SUM (DIRECT_TWPE+INDIRECT_TWPE), NULL, 0, SUM (DIRECT_TWPE+INDIRECT_TWPE)) AS TOTAL_TWPE, DECODE (SUM (DIRECT_TWPE_304M), NULL, 0, SUM (DIRECT_TWPE_304M)) AS DIRECT_TWPE_304M, DECODE (SUM (INDIRECT_TWPE_304M), NULL, 0, SUM (INDIRECT_TWPE_304M)) AS INDIRECT_TWPE_304M, DECODE (SUM (DIRECT_TWPE_304M+INDIRECT_TWPE_304M), NULL, 0, SUM (DIRECT_TWPE_304M+INDIRECT_TWPE_304M)) AS TOTAL_TWPE_304M FROM DMR.DMR_LOADINGS_TRI_RELEASES TR INNER JOIN DMR.DMR_LOADINGS_TRI_FACILITIES TF ON TR.TRI_FACILITY_ID=TF.TRI_FACILITY_ID INNER JOIN DMR.DMR_LOADINGS_PSC_304MTRI_XWALK X ON TR.TRI_FACILITY_ID=X.TRI_FACILITY_ID INNER JOIN DMR.REF_PSC P ON X.psc_code_304m = P.PSC_CODE AND TR.TRI_CHEM_ID=X.TRI_CHEM_ID WHERE TR.REPORTING_YEAR = ? AND P.PSC_CODE = ? AND P.DMR_YEAR=? GROUP BY P.PSC_DESC, TR.CHEMICAL_NAME DMR Pollutant Loading Tool | US EPA

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 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 pg, 7K).

Point Source Category Information - Mineral Mining and Processing (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 1,489 60.6 1,489 48.5 48.5
POLYCYCLIC AROMATIC COMPOUNDS 604 0 604 19.7 68.2
MERCURY AND MERCURY COMPOUNDS 286 7.026 286 9.32 77.6
LEAD AND LEAD COMPOUNDS 167 71.006 167 5.44 83.05
COPPER AND COPPER COMPOUNDS 154 0.27 154 5.023 88.07
ZINC AND ZINC COMPOUNDS 83.2 0.401 83.2 2.71 90.7
MANGANESE AND MANGANESE COMPOUNDS 21.2 37.4 21.5 0.701 91.4
CHROMIUM AND CHROMIUM COMPOUNDS 18.1 2.25 18.1 0.59 92.08
AMMONIA 15.09 27.08 15.09 0.49 92.5
CADMIUM AND CADMIUM COMPOUNDS 14.7 0 14.7 0.48 93.06

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)
111102070203 Little Fourche Creek 155 0 155
050301011103 Carpenter Run-Ohio River 98.1 0 98.1
031002040306 Alafia River 59.6 0 59.6
050301010310 Sixmile Run-Ohio River 59.6 0 59.6
051201130704 Lick Creek-Big Creek 18.5 0 18.5
041100020201 Potter Creek-Breakneck Creek 17.5 0.21 17.71
180701060202 Upper West Fork San Gabriel River 11.6 0 11.6
041000111405 North Side Sandusky Bay Frontal 7.36 0 7.36
050302020102 Mile Run-Ohio River 3.5 0 3.5
051202080905 Sulphur Creek 3.13 0 3.13

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)
31715NGLHRDEPOT BASF CORP ATTAPULGUS OPS ATTAPULGUS, GA 327992 031200030203 NITRATE COMPOUNDS 937 0 937
35125RVRSDTRUSS RIVERSIDE REFRACTORIES INC PELL CITY, AL 327124 POLYCYCLIC AROMATIC COMPOUNDS 604 0 604
31404KTLST1800E BASF CORP - SAVANNAH OPERATIONS SAVANNAH, GA 327992 030601090307 NITRATE COMPOUNDS 526 0 526
72216M POBOX 3M CO - LITTLE ROCK LITTLE ROCK, AR 212325 111102070203 COPPER AND COPPER COMPOUNDS 152 0 152
7038WBKRHG1FIRS BAKER HUGHES OILFIELD OPERATIONS INC MORGAN CITY, LA 327992 LEAD AND LEAD COMPOUNDS 85.12 0 85.12
26050HMRLGSIXTH HOMER LAUGHLIN CHINA CO NEWELL, WV 327112 050301011103 ZINC AND ZINC COMPOUNDS 80.7 0 80.7
28120NWNGC1725D NEW NGC INC (DBA NATIONAL GYPSUM CO) MOUNT HOLLY, NC 327420 030501011302 MERCURY AND MERCURY COMPOUNDS 70.2 0 70.2
33534NWNGC12949 NEW NGC INC (DBA NATIONAL GYPSUM CO) GIBSONTON, FL 327420 031002040306 MERCURY AND MERCURY COMPOUNDS 58.5 0 58.5
15077NWNGC168SH NGC INDUSTRIES LLC A SUBSIDIARY OF NEW NGC INC SHIPPINGPORT, PA 327420 050301010310 MERCURY AND MERCURY COMPOUNDS 58.5 0 58.5
35115CHMCL7444S CHEMICAL LIME CO OF ALABAMA LLC CALERA, AL 327410 031502020403 MERCURY AND MERCURY COMPOUNDS 52.6 0 52.6

Download All Data

Top of Page

About the Data Glossary Error Correction Contact Us

Jump to main content.