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

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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 pg, 7K).

Point Source Category Information - CCH (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
DIOXIN AND DIOXIN-LIKE COMPOUNDS 5,087,038 0 5,087,038 96.8 96.8
HEXACHLOROBENZENE 142,826 261 143,087 2.72 99.5
MERCURY AND MERCURY COMPOUNDS 10,437 3.79 10,437 0.19 99.7
COPPER AND COPPER COMPOUNDS 4,098 0 4,098 0.078 99.8
LEAD AND LEAD COMPOUNDS 2,109 170 2,278 0.043 99.8
1,2,3-TRICHLOROPROPANE 2,188 0 2,188 0.041 99.9
ALLYL ALCOHOL 916 0 916 0.017 99.9
NITRATE COMPOUNDS 665 0.201 665 0.012 99.9
ZINC AND ZINC COMPOUNDS 465 0.81 465 0.0088 99.9
MANGANESE AND MANGANESE COMPOUNDS 348 0 348 0.0066 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)
080703000207 Bayou Bourbeaux 915,617 0 915,617
080901000101 Mississippi River-Bonnet Carre Spillway 656,137 0 656,137
080802060301 Maple Fork-Bayou D'Inde 490,491 0 490,491
050301061004 Lower West Virginia Fork Fish Creek 218,207 0 218,207
120401040706 Goose Creek-Frontal Galveston Bay 162,362 0 162,362
080701000104 Manchac Point 114,534 0 114,534
060400060502 Guess Creek-Tennessee River 46,650 0 46,650
080701000105 Claiborne Island 10,350 0 10,350
111403060411 Tete Bayou-Frontal Caddo Lake 7,845 0 7,845
060200021406 Hiwassee River-Dry Valley 5,785 0 5,785

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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)
77541THDWCBUILD DOW CHEMICAL CO FREEPORT FACILITY FREEPORT, TX 120701040505 DIOXIN AND DIOXIN-LIKE COMPOUNDS 2,523,132 0 2,523,132
70765THDWCHIGHW THE DOW CHEMICAL CO - LOUISIANA OPERATIONS PLAQUEMINE, LA 325199 080703000207 DIOXIN AND DIOXIN-LIKE COMPOUNDS 864,620 0 864,620
70057CCDNTLAHWY OCCIDENTAL CHEMICAL CORP HAHNVILLE, LA 325181 080901000101 DIOXIN AND DIOXIN-LIKE COMPOUNDS 655,648 0 655,648
70669PPGNDCOLUM PPG INDUSTRIES INC WESTLAKE, LA 325181 080802060301 DIOXIN AND DIOXIN-LIKE COMPOUNDS 486,578 0 486,578
26155PPGNDSTATE PPG INDUSTRIES INC NEW MARTINSVILLE, WV 325181 050301061004 DIOXIN AND DIOXIN-LIKE COMPOUNDS 216,769 0 216,769
77571LPRTC2400M OXY VINYLS LP LA PORTE VCM PLANT LA PORTE, TX 120401040706 DIOXIN AND DIOXIN-LIKE COMPOUNDS 160,303 0 160,303
77541THDWCBUILD DOW CHEMICAL CO FREEPORT FACILITY FREEPORT, TX 120701040505 HEXACHLOROBENZENE 66,125 0 66,125
70805FRMSPGULFS FORMOSA PLASTICS CORP LOUISIANA BATON ROUGE, LA 325211 080701000104 DIOXIN AND DIOXIN-LIKE COMPOUNDS 65,450 0 65,450
70765THDWCHIGHW THE DOW CHEMICAL CO - LOUISIANA OPERATIONS PLAQUEMINE, LA 325199 080703000207 HEXACHLOROBENZENE 50,251 0 50,251
70765GRGGLHIGHW GEORGIA GULF CHEMICALS & VINYL S LLC PLAQUEMINE, LA 325211 080701000104 DIOXIN AND DIOXIN-LIKE COMPOUNDS 48,004 0 48,004

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