States 9 48 7 3 O N S I T E Onsite WW management** Facilities 16 345 7 3 Establishments 93 1,611 25 9 Pounds*** Not available from Envirofacts website Onsite WW treatment**** ( TRI code = B11 to C99) Facilities 12 198 5 2 Establishments 21 314 9 4 Pounds*** Not available from Envirofacts website O F F S I T E Transfer WW to POTW ( TRI code = P91) Facilities 1 60 1 0 Establishments 1 60 1 0 Pounds*** 1,522 208,765 858,000 0 Transfer WW to other offsite treatment ( TRI code = M61 + M62) Facilities 2 41 2 0 Establishments 2 45 3 0 Pounds*** 58,009 141,063 885 0 73 Explanatory Notes: ( a) Source: USEPA Envirofacts website queries of the 1999 " Toxics Release Inventory" ( TRI) database http:// www. epa. gov/ enviro/ html/ tris/ adhoc. html ( b) * Wastewater: aqueous waste with less than 50% organic liquid content; excludes slurries and sludges containing water with appreciable amounts of dissolved or settled solids, such that the viscosity or density of the waste is considerably different from process wastewater. ( c) ** Other " management" methods include incineration/ thermal treatment methods ( TRI onsite waste treatment codes Fxx), and physical treatment methods such as equalization, filtration, settling/ clarification, carbon adsorption, air stripping, steam stripping ( TRI onsite waste treatment codes Pxx). ( d) *** Pounds of the chemical constituent only, not of the entire wastewater volume. ( e) **** " Treatment" here represents the subset of WW treated with either biological treatment ( TRI onsite waste treatment codes Bxx), or chemical treatment ( TRI onsite waste treatment codes Cxx). ( f) TRI database reporting thresholds: ! Facilities in manufacturing SIC codes 20 39 + coal & metal mining + electric utilities + chemical wholesalers + petroleum bulk terminals + hazardous waste management services: ! > 12.5 tons ( 25,000 lbs) of the chemical manufactured or processed, or > 5 tons ( 10,000 lbs) used during one year. ( g) Facility: all buildings, equipment, structures, and other stationary items which are located on a single site or on contiguous or adjacent sites and which are owned or operated by the same person. ( h) Establishment: distinct and separate economic activities that are performed at a single physical location; there may be more than one establishment per facility ( i. e. multi establishment facilities consist of two or more distince and separate economic units). 74 75 Six of the 13 TRI Database Chemical Activities Listed Below are Potential " Solvent" Use Categories: ( 1) Used/ Processed; ( 2) Formulation Component; ( 3) Article Component; ( 4) Chem Processing Aid; ( 5) Manufacture Aid; ( 6) Ancillary. 76 1987 19881989 1990 1991 1992 1993 1994 19951996 1997 1998 1999 Year 0 100 200 300 400 500 Count of TRI Establishments Benzene: 13 Year Trend in Solvent Use ( 6 Possible Solvent TRI facilities using > 10,000 pounds/ year; ~ 2 drums/ month equivalency) 77 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 Year 0 20 40 60 80 100 120 140 Count of TRI Establishments 2 Ethoxyethanol: 13 Year Trend in Solvent Use ( 6 Possible Solvent Categories) TRI facilities using > 10,000 pounds/ year; ~ 2 drums/ month equivalency) 78 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 Year 10 15 20 25 30 35 40 45 Count of TRI Establishments 1,1,2 Trichloroethane: 13 Year Trend in Solvent Use ( 6 Possible Solvent Categories) TRI facilities using > 10,000 pounds/ year; ~ 2 drums/ month equivalency) 79 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 Year 1 2 3 4 5 6 7 8 9 10 11 12 Count of TRI Establishments 2 Nitropropane: 13 Year Trend in Solvent Use ( 6 Possible Solvent ( TRI facilities using > 10,000 pounds/ year; ~ 2 drums/ month equivalency)

1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 Year 0 100 200 300 400 500 600 Count of TRI Establishments 2 nitropropane 1,1,2 TCE 2 ethoxyethanol Benzene * Possible solvent uses include: used/ processed; performance enhancer formulation component; integral component of article; chemical processing aid; manufacturing aid; and/ or ancillary use 13 Year Trend in Solvent Use ( Six Possible Solvent Use Categories*) ( TRI facilities using > 10,000 pounds/ year; ~ 2 drums/ month equivalency) 80 81 82 83 Summary of On site Treatability for Candidate " Headworks" Spent Solvent Chemicals in Industrial Wastewaters Source: USEPA 1999 Toxics Release Inventory ( TRI) Section 7A Item TRI Treatment Code Type of On Site Wastewater Treatment Method 2 NITROPROPANE 1,1,2 TCA 2 ETHOXYETHANOL BENZENE Wastestreams w/ data = 3 Wastestreams w/ data = 18 Wastestreams w/ data = 7 Wastestreams w/ data = 382 Data points Treatability %* Data points Treatability %* Data points Treatability %* Data points Treatability %*

Min Max Median Min Max Median Min Max Median Min Max Median 1 B11 Biological treatment  aerobic 1 95.0 8 77.0 100.0 98.7 4 86.7 100.0 97.0 182 0.0 100.0 99.5 2 B21 Biological treatment  anaerobic 1 100.0 7 0.0 100.0 100.0 3 B31 Biological treatment  facultative 1 95.0 1 80.0 9 0.0 100.0 99.0 4 B99 Biological treatment  other 13 0.0 100.0 99.0 5 C01 Chemical treatment  chemical precipitation  lime or sodium hydroxide 4 0.0 99.7 97.0 6 C09 Chemical treatment  sulfide 1 97.5 7 0.0 100.0 97.0 7 C11 Chemical treatment  neutralization 2 95.0 98.0 96.5 10 0.0 100.0 97.8 3 86.7 98.0 95.0 67 0.0 100.0 99.0 8 C21 Chemical treatment  chromium reduction 1 100.0 9 C41 Chemical treatment  cyanide oxidation  alkaline chlorination 1 99.0 10 C43 Chemical treatment  cyanide oxidation  other 2 99.0 99.0 99.0 11 C44 Chemical treatment  general oxidation ( including disinfection)  chlorination 1 95.0 3 0.3 100.0 95.0 12 C45 Chemical treatment  general oxidation ( including disinfection)  ozonation 1 100.0 13 C46 Chemical treatment  general oxidation ( including disinfection)  other 1 99.0 7 97.8 100.0 99.0 14 C99 Chemical treatment  other 10 0.3 100.0 99.0 15 P01 Physical treatment  equalization 1 95.0 6 77.0 100.0 98.7 2 86.7 95.0 90.9 124 0.0 100.0 99.0 16 P09 Physical treatment  other blending 7 0.0 100.0 100.0 17 P11 Physical treatment  settling/ clarification 1 95.0 10 77.0 100.0 99.6 2 86.7 95.0 90.9 149 0.0 100.0 99.0 18 P12 Physical treatment  filtration 2 95.0 98.0 96.5 6 77.0 100.0 99.0 1 98.0 67 0.0 100.0 99.0 19 P13 Physical treatment  sludge dewatering ( non thermal) 3 80.0 100.0 97.5 34 0.0 100.0 99.0 20 P14 Physical treatment  air flotation 1 90.0 92 0.0 100.0 99.0 21 P15 Physical treatment  oil skimming 171 0.0 100.0 99.0 Item TRI Treatment Code Type of On Site Wastewater Treatment Method 2 NITROPROPANE 1,1,2 TCA 2 ETHOXYETHANOL BENZENE Wastestreams w/ data = 3 Wastestreams w/ data = 18 Wastestreams w/ data = 7 Wastestreams w/ data = 382 Data points Treatability %* Data points Treatability %* Data points Treatability %* Data points Treatability %*

Min Max Median Min Max Median Min Max Median Min Max Median 84 22 P16 Physical treatment  emulsion breaking  thermal 5 85.0 100.0 99.0 23 P17 Physical treatment  emulsion breaking  chemical 15 0.0 100.0 99.0 24 P19 Physical treatment  other liquid phase separation 24 0.0 100.0 99.0 25 P21 Physical treatment  adsorption  carbon 1 98.0 5 97.5 100.0 99.0 1 98.0 65 0.0 100.0 99.0 26 P29 Physical treatment  adsorption  other 1 93.3 27 P41 Physical treatment  stripping  air 6 77.0 100.0 97.1 67 0.0 100.0 98.0 28 P42 Physical treatment  stripping  steam 8 77.0 100.0 99.5 50 0.0 100.0 99.0 29 P49 Physical treatment  stripping  other 7 73.1 100.0 99.0 30 P61 Physical treatment  solvent extraction ( other than recovery/ reuse) 2 0.5 99.0 49.8 31 P99 Physical treatment  other physical treatment 1 100.0 6 95.0 100.0 99.5 Column median = 95.0 98.7 96.0 99.0 Total data points = 9 67 15 1200 Explanatory Notes: ( a) * Treatability % = percent destruction, degradation, conversion or removal of the particular chemical mass from the wastestream ( influent compared to effluent concentrations). ( b) Datapoints < 1.0% may represent misplaced decimal points in facilities reporting Section 7A treatment efficiency percentages on the TRI reporting form ( e. g. a data entry of 0.98 may actually represent 98%). ( c) Treatability can reflect the overall removal of the chemical from sequential treatment methods ( treatment train) applied to the wastestream, regardless of whether a single method actually removes the chemical. ( d) Wastewaters defined in the TRI database as " a mixture of water and organic liquid and the organic content is less than 50 percent" ( EPA 745 K 98 001, Feb 1998, p. 36). ( e) USEPA TRI database query website: http:// www. epa. gov/ enviro/ html/ tris/ adhoc. html. 85 86 87 88 89 Generation of Waste Due to Catastrophic or One Time Events Definition: The total amount ( in pounds) of the toxic chemical released directly to the environment or sent off site for recycling, energy recovery, treatment, or disposal during the reporting year, due to remedial actions, catastrophic events such as earthquakes or floods, and one time events not associated with normal or routine production processes. Source: USEPA Toxics Release Inventory ( TRI) Database ( http:// www. epa. gov/ triexplorer/ chemical. htm)

Item Year Benzene 2 Ethoxy ethanol 2 Nitro propane 1,1,2 Tri chloro ethane ( pounds) ( pounds) ( pounds) ( pounds)

1 1991 108,578 79,509 0 3,629 2 1992 122,488 34,810 0 40 3 1993 140,237 151,727 0 210 4 1994 207,558 99,636 0 2,676 5 1995 65,951 36,526 0 481 6 1996 158,478 20,424 0 772 7 1997 42,672 16,237 0 10,206 8 1998 86,711 10,515 0 48 9 1999 90,637 10 0 892 10 2000 41,908 0 0 159 Statistical Summary: A. Pounds per year:

Mean ( average) = 106,522 44,939 0 1,911 Median = 99,608 27,617 0 627 B. Tons per year equivalency ( 2,000 pounds per short ton conversion factor):

Mean ( average) = 53.3 22.5 0.0 1.0 Median = 49.8 13.8 0.0 0.3 90 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 0 50 100 150 200 250 Thousands Pounds Benzene 2 Ethoxy 2 Nitro 1,1,2 TCE Source: USEPA Toxics Release Inventory ( TRI) Database ( http:// www. epa. gov/ triexplorer/ chemical. htm) Waste Due to Catastrophic or One Time Events: Four Headworks Solvents Source: 10 Year Trends Based on USEPA Toxics Release Inventory ( TRI) Database 91 5. USEPA Office of Solid Waste 1996 National Hazardous Waste Constituent Survey ( NHWCS)

Database Query Findings 92 NHWCS Database Query # 1 of 2: ( a) F002 & F005 wastecodes; ( b) four chemicals only; ( c) no other RCRA listed wastecode restrictions.

Physical Form Summary of F002 or F005 Wastestreams Represented in OSW's 1996 NHWCS Database ( which benchmarked waste quantities to 1993 BRS)

Item BRS physical form code Unambiguous wastewater ( WW) or wastewater sludge? BRS physical form code definition Count of 4 digit SIC codes ( industries) Count of NHWCS facilities reporting Count of NHWCS waste streams NHWCS waste quantity ( 1993 tons)

1 ???? F002 or F005 waste physical form code not reported in NHWCS 23 16 77 3,966,953.6 LIQUIDS ( if B1xx to B2xx)

2 B101 Wastewater Aqueous wastes with low solvents 6 6 7 34,446,872.4 3 B102 Wastewater Aqueous wastes with low other toxic organics 2 3 3 2,560,442.1 4 B114 Wastewater Other aqueous waste with low dissolved solids 1 1 3 359,214.8 5 B115 Wastewater Scrubber water 3 5 6 4,804,406.0 6 B116 Wastewater Leachate 1 1 1 9,808.2 7 B119 Other inorganic liquids n. e. c. 2 2 2 9,088,166.1 8 B201 Concentrated solvent water solution 5 5 10 10,870.7 9 B202 Halogenated ( e. g. chlorinated) solvent 21 12 31 92,968.4 10 B203 Nonhalogenated solvent 22 22 49 186,752.9 11 B204 Halogenated/ nonhalogenated solvent mixture 42 38 184 578,675.7 12 B205 Oil water emulsion or mixture 2 2 2 5,182.1 13 B206 Waste oil 1 1 1 4,062.3 14 B207 Concentrated aqueous solution of other organics 3 3 3 101,961.1 15 B209 Organic paint, ink, lacquer, or varnish 5 4 7 2,550.0 16 B210 Adhesives or epoxies 0 1 1 27.8 17 B211 Paint thinner or petroleum distillates 7 5 13 44,301.2 18 B212 Reactive or polymerizable organic liquid 1 1 1 1,528.5 19 B219 Other organic liquids n. e. c. 19 12 33 3,919,523.9 Subtotal = 67 77 357 56,217,314.0 Wastewater subtotal ( represents unambigous " lower bound" estimate) = 42,180,743.4 SOLIDS ( if B3xx to B4xx)

20 B301 Soil contaminated with organics 12 11 19 67,009.3 21 B302 Soil contaminated with inorganics only 1 1 1 1,575.0 22 B303 Ash, slag, or other residue from waste incineration 4 8 18 73,438.9 23 B306 Dry lime or metal hydroxid solids not " fixed" 1 1 1 580.0 24 B310 Spent solid filters or adsorbents 2 3 3 7,284.1 25 B312 Metal cyanide salts/ chemicals 1 1 1 1,070.0 26 B319 Other waste inorganic solids n. e. c. 3 4 4 8,379.5 Item BRS physical form code Unambiguous wastewater ( WW) or wastewater sludge? BRS physical form code definition Count of 4 digit SIC codes ( industries) Count of NHWCS facilities reporting Count of NHWCS waste streams NHWCS waste quantity ( 1993 tons)

93 27 B407 Other halogenated organic solids n. e. c. 7 6 12 31,484.7 28 B409 Other nonhalogenated organic solids n. e. c. 8 7 15 24,006.0 Subtotal = 26 28 74 214,827.4 SLUDGES ( if B5xx to B6xx)

29 B501 Lime sludge without metals 1 1 1 1,506.4 30 B503 WW sludge Wastewater treatment sludge with toxic organics 2 2 2 149,861.4 31 B504 WW sludge Other wastewater treatment sludge 1 1 1 3,961.2 32 B505 Untreated plating sludge without cyanides 1 1 1 3,039.8 33 B506 Untreated plating sludge with cyanides 1 1 1 3,039.8 34 B511 Air pollution control device sludge ( e. g., fly ash, wet scrubber sludge) 1 1 1 4,703.1 35 B601 Still bottoms of halogenated solvents or other organic liquids 2 2 2 1,527.5 36 B603 Oily sludge 2 3 3 5,155.1 37 B604 Organic paint or ink sludge 2 2 2 1,665.9 38 B606 Resins, tars, or tarry sludge 2 3 3 2,542.5 39 B607 WW sludge Biological treatment sludge 3 4 5 51,190.7 40 B609 Other organic sludges n. e. c. 3 2 3 4,078.9 Subtotal = 14 17 25 232,272.4 Wastewater sludge subtotal ( represents unambigous " lower bound" estimate) = 205,013.4 Non duplicative totals = 82 103 533 56,664,413.9 94 NHWCS Database Query # 1 of 2: Continued Summary of NHWCS Database Query Findings: F002 or F005 Spent Solvent RCRA Hazardous Wastestreams With Benzene, 1,1,2 Trichloroethane, 2 Ethoxyethanol, or 2 Nitropropane Source: OSW National Hazardous Waste Constituent Survey ( NHWCS) Database Data Summary Element Subset of F002 or F005 Wastes Which Contain One or More of the Four Chemicals Data Summary Element Subset of F002 or F005 Wastes Which Contain One or More of the Four Chemicals A B C D E F G A F002 or F005 facilities reporting measured* concentrations of 0 or > 0ppm B % of All NHWCS F002 or F005 waste C F002 or F005 facilities reporting measured* > 0ppm concentration D E F G F002 or F005 facilities reporting measured* concentrations of 0 or > 0ppm % of All NHWCS F002 or F005 waste F002 or F005 facilities reporting measured* > 0ppm concentration % of column A Wholewaste Conc if > 0ppm % of column A Wholewaste Conc if > 0ppm Min ( ppm) Max ( ppm) Waste quantity weighted average ( ppm) Min ( ppm) Max ( ppm) Waste quantity weighted average ( ppm)

2 NITROPROPANE ( 79 46 9) Benzene ( 71 43 2)

Count of 4 digit SIC industrial Operations Represented by Wastestreams Count of 4 digit SIC industrial Operations Represented by Wastestreams Liquids 16 24% 10 63% Liquids 32 48% 27 84%

Solids 10 38% 5 50% Solids 16 62% 8 50%

Sludges 4 29% 2 50% Sludges 10 71% 6 60%

Subtotal 22 27% 14 64% Subtotal 44 54% 32 73%

Count of NHWCS facilities Count of NHWCS facilities Liquids 13 17% 4 31% Liquids 32 42% 24 75%

Solids 11 39% 6 55% Solids 17 61% 9 53%

Sludges 5 29% 2 40% Sludges 9 53% 5 56%

Subtotal 22 21% 10 45% Subtotal 42 41% 30 71%

Count of NHWCS wastestreams Count of NHWCS wastestreams Liquids 38 11% 16 42% Liquids 92 26% 69 75%

Solids 26 35% 16 62% Solids 43 58% 22 51%

Sludges 5 20% 2 40% Sludges 15 60% 9 60%

Subtotal 69 13% 34 49% Subtotal 150 28% 100 67%

1993 quantity ( tons/ year) 1993 quantity ( tons/ year)

Liquids 4,193,758.6 7% 22,395.8 1% 5.00 25,000.0 1,955.4 Liquids 6,328,536.8 11% 1,185,393.9 19% 0.003 75,892.9 802.1 Solids 113,519.3 53% 97,513.1 86% 0.08 21,000.0 213.8 Solids 149,580.5 70% 604,087.7 404% 0.00 5,000.0 64.6 Sludges 12,334.1 5% 2,438.8 20% 50.00 5,000.0 3,151.4 Sludges 65,376.6 28% 74,811.0 114% 0.04 25,000.0 2,549.5 Subtotal 4,319,612.1 8% 122,347.6 3% Subtotal 6,543,493.9 12% 1,864,292.5 28% Data Summary Element Subset of F002 or F005 Wastes Which Contain One or More of the Four Chemicals Data Summary Element Subset of F002 or F005 Wastes Which Contain One or More of the Four Chemicals A B C D E F G A F002 or F005 facilities reporting measured* concentrations of 0 or > 0ppm B % of All NHWCS F002 or F005 waste C F002 or F005 facilities reporting measured* > 0ppm concentration D E F G F002 or F005 facilities reporting measured* concentrations of 0 or > 0ppm % of All NHWCS F002 or F005 waste F002 or F005 facilities reporting measured* > 0ppm concentration % of column A Wholewaste Conc if > 0ppm % of column A Wholewaste Conc if > 0ppm Min ( ppm) Max ( ppm) Waste quantity weighted average ( ppm) Min ( ppm) Max ( ppm) Waste quantity weighted average ( ppm)

95 2 Ethoxyethanol [ Ethylene glycol monoethyl ether] ( 110 80 5) 1,1,2 Trichloroethane [ Vinyl trichloride] ( 79 00 5)

Count of 4 digit SIC industrial Operations Represented by Wastestreams Count of 4 digit SIC industrial Operations Represented by Wastestreams Liquids 23 34% 20 87% Liquids 23 34% 14 61%

Solids 9 35% 7 78% Solids 13 50% 10 77%

Sludges 6 43% 4 67% Sludges 8 57% 6 75%

Subtotal 27 33% 24 89% Subtotal 33 40% 22 67%

Count of NHWCS facilities Count of NHWCS facilities Liquids 17 22% 11 65% Liquids 22 29% 11 50%

Solids 12 43% 8 67% Solids 14 50% 9 64%

Sludges 6 35% 4 67% Sludges 8 47% 5 63%

Subtotal 25 24% 16 64% Subtotal 30 29% 16 53%

Count of NHWCS wastestreams Count of NHWCS wastestreams Liquids 49 14% 29 59% Liquids 50 14% 23 46%

Solids 25 34% 18 72% Solids 34 46% 25 74%

Sludges 7 28% 4 57% Sludges 10 40% 7 70%

Subtotal 81 15% 51 63% Subtotal 94 18% 55 59%

1993 quantity ( tons/ year) 1993 quantity ( tons/ year)

Liquids 4,219,778.8 8% 54,334.5 1% 2.50 50,595.2 9,918.8 Liquids 6,152,912.4 11% 1,021,591.9 17% 0.003 11,325.6 41.4 Solids 109,566.7 51% 149,108.5 136% 0.08 75,000.0 373.7 Solids 135,515.9 63% 142,942.8 105% 0.003 8,854.2 659.8 Sludges 14,058.9 6% 11,350.8 81% 1.65 25,000.0 16,428.3 Sludges 58,316.8 25% 61,085.5 105% 0.00 5,000.0 347.0 Subtotal 4,343,404.4 8% 214,793.8 5% Subtotal 6,346,745.1 11% 1,225,620.2 19%

Explanatory Notes: * Measured = Average concentrations ( 0ppm or > 0ppm) based on either: and based upon either:  " Estimate" ( if based on less than 5 samples)  wholewaste concentration  " Analysis" ( if based on 5 or more samples).  waste leaching procedure concentration 96 NHWCS Database Query # 1 of 2: Continued NHWCS Database Chemical Concentration Data for F002 & F005 RCRA Wastes Summary of 1996 NHWCS Database " Matched Pair" Findings: Same facility liquid ( treatment influent) Compared to sludge ( treatment effluent residual)

" Headworks" F002 or F005 solvent chemical Nr. facilities with matched liquids & sludges in NHWCS Subset nr. of apparent liquid & sludge matched facilities Reported wholewaste total concentration of chemicals in liquid ( ppm) Reported wholewaste total concentration of chemicals in sludge ( ppm)

2 Nitropropane 0 Not relevant Not relevant Not relevant 2 Ethoxyethanol 2 0 Not relevant Not relevant Benzene 4 2 500 0.013 25,000 & 250 0.044 1,1,2 Trichloroethane 3 2 500 0.013 250 0.033 97 NHWCS Database Query # 2 of 2: ( a) F002 & F005 wastecodes; ( b) 4 chemicals only; ( c) exclude RCRA Kxxx, Uxxx, Pxxx wastecodes Headworks Solvent Waste Facilities in the NHWCS ( n= 31)

! IF CONSTITUENT CAS NR = 71 43 2 OR 110 80 5 OR 79 00 5 OR 79 46 9 ! IF WASTECODE = F002 OR F005, BUT NOT Kxxx, Uxxx, Pxxx ! IF CHEMMASS > 0 ( i. e. mass of chemical constituent in wastestream)

ITEM EPAID FACNAME CITY STATE ZIPCODE 1993 TONS/ YR 1 ALD981019045 SYSTECH ENVIRONMENTAL CORPORATION DEMOPOLIS AL 367320000 5,852 2 ARD069748192 ENSCO INC EL DORADO AR 717300000 11 3 ARD089234884 EASTMAN CHEMICAL CO, ARK EASTMAN DIV BATESVILLE AR 72501 8,093 4 ARD981512270 ASH GROVE CEMENT FOREMAN FOREMAN AR 71836000 7,526 5 ILD010284248 CID RECYCLING & DISPOSAL FAC CALUMET CITY IL 604090000 804 6 ILD087157251 ENVIRONMENTAL WASTE RESOURCES COAL CITY IL 60416 4,148 7 IND001859032 RHONE POULENC BASIC CHEMICALS CO HAMMOND IN 463200000 2,295 8 IND006050967 ELI LILLY & CO TIPPECANOE SHADELAND IN 479050000 3,695 9 IND006419212 LONESTAR INDUSTRIES INC. GREENCASTLE IN 461350000 17,739 10 IND072040348 ELI LILLY & CO CLINTON LABS CLINTON IN 478420000 2,083 11 IND078911146 CHEMICAL WASTE MANAGEMENT OF INDIANA INC FORT WAYNE IN 468060000 210 12 KSD980633259 SYSTECH ENVIRONMENTAL FREDONIA KS 667360000 8,702 13 LAD981057706 MARINE SHALE PROCESSORS AMELIA LA 703400000 28,846 14 MID000724831 MICHIGAN DISPOSAL BELLEVILLE MI 481110000 13,350 15 MID981200835 SYSTECH ENVIRONMENTAL CORP  LAFARGE CORP ALPENA MI 497070000 27,735 16 MND006172969 3M COTTAGE GROVE ( CHEMOLITE) COTTAGE GROVE MN 550160000 3,814 17 NYD080469935 NORLITE CORPORATION COHOES NY 120470694 10,584 18 NYD980592497 EASTMAN KODAK COMPANY ROCHESTER NY 146526259 3,319 19 NYD986874501 INTERNATIONAL BUSINESS MACHINES CORP. OWEGO NY 138273998 445,193 20 OHD045243706 ENVIROSAFE SERVICES OF OHIO INC OREGON OH 43616 42,944 21 OHD093945293 CWM RESOURCE RECOVERY, INC. WEST CARROLLTON OH 45449 69 22 OKD065438376 U. S. POLL. CONTROL, INC. LONE MOUNTAIN WAYNOKA OK 738609622 165,331 23 ORD089452353 CHEMICAL WASTE MANAGEMENT OF THE NW ARLINGTON OR 97812 680 24 SCD070375985 LAIDLAW ENV SVS OF SC INC PINEWOOD SC 291250000 143 25 TN3890090001 U. S. DOE Y 12 PLANT OAK RIDGE TN 37831 23,872 26 TND981920119 ALLWORTH OF TENNESSEE INC MOUNT PLEASANT TN 38474 218 27 TXD000838896 CHEMICAL WASTE MANAGEMENT INC PORT ARTHUR TX 77640000 10,978 28 TXD008076853 HUNTSMAN PETROCHEMICAL CORPORATION CONROE TX 773010000 2,092 29 UTD981552177 APTUS INC ARAGONITE UT 840290000 544 30 VAD042755082 SOLITE CORPORATION ARVONIA VA 230040068 32,761 31 VAD046970521 VIRGINIA SOLITE COMPANY CASCADE VA 240690000 32,339 Column total = 905,970 98 NHWCS Database Query # 1 of 2: Continued WASTE TREATMENT SYSTEM SUMMARY FOUR HEADWORKS SOLVENT CHEMICALS SUMMARY OF NHWCS WASTESTREAM DATA Item BRS TSDR System Type Code TSDR System Category Description of Wastestream TSDR System 1993 Count of Largest TSDR Facilities Count of Wastes Containing at least 1 of 4 chems Subtotal Annual Waste Volume ( Tons) Percent of Total 1 M024 Solvents Recovery Other solvent recovery 1 1 69 0.0%

2 M041 Incineration Incineration  liquids 7 15 21,004 2.9%

3 M043 Incineration Incineration  solids 3 4 3,153 0.4%

4 M051 Energy Recovery Energy recovery  liquids 7 16 59,563 8.3%

5 M052 Energy Recovery Energy recovery  sludges 1 4 6,026 0.8%

6 M053 Energy Recovery Energy recovery  solids 1 3 4,519 0.6%

7 M061 Fuel Blending Fuel blending 5 22 50,429 7.1%

8 M083 Aqueous Organic Treatment Air/ steam stripping 1 1 445,193 62.4%

9 M111 Stabilization Stabilization/ chemical fixation using cementitious materials 3 9 62,085 8.7%

10 M132 Disposal Landfill 6 11 47,564 6.7%

11 M137 Disposal Other Disposal N. E. C. 1 1 9,808 1.4%

12 NA Not provided in NHWCS Not provided in NHWCS 1 1 4,256 0.6%

Non Duplicative Totals= 31 88 713,670 100.0% 99 NHWCS Database Query # 2 of 2: Continued Waste Physical Form Summary Four Headworks Solvents Summary of NHWCS Wastestream Data for Four Targeted Chemicals Item BRS Waste Physical Form Code Physical Form Category Description of Wastestream Physical Form 1993 Count of Largest TSDR Facilities Count of Wastes Containing at least 1 of 4 chems Subtotal Annual Waste Volume ( Tons) Percent of all liquids A. LIQUIDS:

1 B101 Inorganic liquids Aqueous waste with low solvents 2 2 449,449 75.9%

2 B116 Inorganic liquids Leachate 1 1 9,808 1.7%

3 B201 Organic liquids Concentrated solvent water solution 2 3 1,323 0.2%

4 B203 Organic liquids Nonhalogenated solvent 2 2 3,244 0.5%

5 B204 Organic liquids Halogenated/ nonhalogenated solvent mixture 14 42 112,792 19.0%

6 B205 Organic liquids Oil water emulsion or mixture 1 1 4,703 0.8%

7 B207 Organic liquids Concentrated aqueous solution of other organics 1 1 911 0.2%

8 B219 Organic liquids Other organic liquids N. E. C 2 4 10,046 1.7%

Subtotals= 56 592,278 100.0%

B. SOLIDS/ SLUDGES:

9 B301 Inorganic solids Soil contaminated with organics 8 12 55,521 10 B302 Inorganic solids Soil contaminated with inorganics only 1 1 1,575 11 B303 Inorganic solids Ash, slag, or other residue from incineration of wastes 2 5 40,651 12 B312 Inorganic solids Metal cyanide salts/ chemicals 1 1 1,070 13 B407 Organic solids Other halogenated organic solids 1 1 1,506 14 B409 Organic solids Other nonhalogenated organic solids 2 3 4,541 15 B501 Inorganic sludges Lime sludge without metals 1 1 1,506 16 B505 Inorganic sludges Untreated plating sludge without cyanides 1 1 3,040 17 B511 Inorganic sludges Air pollution control device ( e. g. fly ash, scrubber sludge) 1 1 4,703 18 B604 Organic sludges Organic paint or ink sludge 1 1 1,506 19 B606 Organic sludges Resins, tars, or tarry sludge 1 1 218 20 B607 Organic sludges Biological treatment sludge 1 2 2,541 21 B609 Organic sludges Orther organic sludges N. E. C 1 2 3,013 Sludges subtotal = 7 9 16,528 Subtotals= 32 121,392 Non Duplicative Grand totals= 31 88 713,670 100 NHWCS Database Query # 2 of 2: Continued Headworks Solvents: 4 Chemicals in NHWCS Database Summary of Concentrations in RCRA Hazardous Waste All Waste Physical Forms ( Liquids & Solids & Sludges)

CAS Number> 79 46 9 79 00 5 71 43 2 110 80 5 Name of Target Chemical> 2 Nitropropane 1,1,2 Trichloroethane Benzene 2 Ethoxyethanol WHOLEWASTE CONC ( ppm):

Data points ( if> 0ppm)= 26 40 68 34 Minimum= 0.02 0.003 0.001 0.08 Maximum= 25,000 11,326 75,893 75,000 Standard deviation ( sample)= 6,262 3,371 12,680 16,900 Median= 275 500 215 2,000 Simple mean= 2,502 2,470 4,677 7,627 LEACHATE CONC ( ppm):

Data points ( if> 0ppm)= 2 2 19 3 Minimum= 0.05 0.05 0.03 0.05 Maximum= 21,000 2,181 5,000 230 Standard deviation ( sample)= 14,849 1,542 1,157 118 Median= 10,500 1,091 45 73 Simple mean= 10,500 1,091 442 101 WASTESTREAM ANNUAL VOLUME ( tons):

Data points ( if> 0ppm)= 27 41 75 35 Minimum= 18 18 11 18 Maximum= 16,395 16,395 445,193 16,395 Standard deviation ( sample)= 4,174 4,584 51,145 3,900 Median= 1,691 3,040 2,156 1,506 Simple mean= 3,670 4,349 9,299 3,179 Total= 99,095 178,294 697,409 111,251 713,670 < Total annual volume wastestreams with at least one of four targeted chemicals. 101 NHWCS Database Query # 2 of 2: Continued Headworks Solvent Chemicals Summary of Concentrations in RCRA Hazardous Waste For 4 Targeted Chemical Constituents ( NHWCS): Excluding B116 Leachate LIQUID WASTES ONLY* ( Excluding B116 Leachate)

CAS Number> 79 46 9 79 00 5 71 43 2 110 80 5 Name of Target Chemical> 2 Nitropropane 1,1,2 Trichloroethane Benzene 2 Ethoxyethanol WHOLEWASTE CONC ( ppm): Data points ( if> 0ppm)= 11 19 41 19 Minimum= 0.020 0.033 0.001 0.165 Maximum= 21,000 10,000 75,893 50,595 Standard deviation ( sample)= 6,213 3,564 12,233 11,809 Median= 500 2,500 1,400 2,500 Simple mean= 2,277 3,286 4,247 5,210 Kurtosis**= 11.0 0.1 31.2 13.6 Skewness***= 3.3 1.2 5.4 3.6 LEACHATE CONC ( ppm): Data points ( if> 0ppm)= 1 1 8 2 Minimum= 21,000 2,181 0.25 72.70 Maximum= 21,000 2,181 1,400 230 Standard deviation ( sample)= ERR ERR 482 111 Median= 21,000 2,181 35 151 Simple mean= 21,000 2,181 222 151 Kurtosis**= ERR ERR 7.4 ERR Skewness***= ERR ERR 2.7 ERR WASTESTREAM ANNUAL VOLUME ( tons): Data points ( if> 0ppm)= 11 19 43 19 Minimum= 18 18 11 18 Maximum= 4,703 16,380 445,193 7,241 Standard deviation ( sample)= 1,571 5,009 67,543 1,812 Median= 743 782 2,156 782 Simple mean= 1,198 3,313 13,173 1,401 Total= 14,373 62,947 566,427 26,628 666,120 < Total annual volume liquids wastestreams ( excluding B116 leachate). Explanatory Notes: ( a) " Liquid" only = BRS waste physical form codes B101 B119 ( inorganic liquids) + B201 B219 ( organic liquids). ( b) ** Kurtosis= Measure of vertical peakedness of distribution ( 0= normal, > 0= peaked, < 0= relatively flat). ( c) *** Skewness= Measure of horizontal distribution symmetry ( 0= normal, > 0= rightward stretch; < 0= leftward stretch). 102 NHWCS Database Query # 2 of 2: Continued Concentration Sort for Liquids Only Headworks Exemption ( BRS Codes B101 B219, Excluding B116 Leachate) If Chemical mass > 0 Row FORM CODE WW? WSTDESC SYSTYPE1 TOTWQTYton CAS CONSTITUENT WWCONCppm Basis LEACHATppm Basis CHMMASSton 1 B204 N Flammable Liquid M051 7,241 110 80 5 2 Ethoxyethanol 50,595.230 E 366.35602 2 B204 N Flammable & Combustible Wastes M041 1,089 110 80 5 2 Ethoxyethanol 20,000.000 E 21.78316 3 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 42 110 80 5 2 Ethoxyethanol 2,500.000 E 0.10390 4 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 782 110 80 5 2 Ethoxyethanol 2,500.000 E 1.95397 5 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 705 110 80 5 2 Ethoxyethanol 2,500.000 E 1.76237 6 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 528 110 80 5 2 Ethoxyethanol 2,500.000 E 1.32103 7 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 865 110 80 5 2 Ethoxyethanol 2,500.000 E 2.16294 8 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitabl M051 597 110 80 5 2 Ethoxyethanol 2,500.000 E 1.49148 9 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitabl M051 898 110 80 5 2 Ethoxyethanol 2,500.000 E 2.24501 10 B204 N Organic Solvents . Waste Derived Fuel Marketer , Ignitab M051 18 110 80 5 2 Ethoxyethanol 2,500.000 E 0.04586 11 B204 N Organic Solvents, Waste Derived Fuel Marketer, Ignitable M061 3,050 110 80 5 2 Ethoxyethanol 2,000.000 A, 93 6.09919 12 B204 N Organic Solvents, Waste Derived Fuel Marketer, Ignitable M061 59 110 80 5 2 Ethoxyethanol 2,000.000 A, 93 0.11854 13 B204 N Organic Solvents, Waste Derived Fuel Marketer, Ignitable M061 542 110 80 5 2 Ethoxyethanol 2,000.000 A, 93 1.08363 14 B204 N Organic Solvents, Waste Derived Fuel Marketer, Ignitable M061 2,201 110 80 5 2 Ethoxyethanol 2,000.000 A, 93 4.40259 15 B201 N Concentrated Solvent water Solution M041 577 110 80 5 2 Ethoxyethanol 230.000 E 230.000 E 0.13274 16 B201 N Waste Solvent M041 668 110 80 5 2 Ethoxyethanol 72.700 E 72.700 E 0.04859 17 B207 N Pcb Contaminated Liquids M041 911 110 80 5 2 Ethoxyethanol 50.000 E 0.01465 18 B203 N Combustible & Flammable Wastes M041 1,152 110 80 5 2 Ethoxyethanol 44.000 E 0.05071 19 B205 N Oil Water Separator Bottoms; Sediments from Oil water M111 4,703 110 80 5 2 Ethoxyethanol 0.165 E, 92 0.00039 20 B204 N Flammable Liquid M051 7,241 71 43 2 Benzene 75,892.860 E 55.833 E 549.53412 21 B204 N Xylene, toluene Flam. liq. M043 11 71 43 2 Benzene 25,000.000 E, 96 0.26403 22 B219 N Flammable Spent Reaction Solvents from Resin Production M051 2,295 71 43 2 Benzene 8,130.100 E 18.65679 23 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 705 71 43 2 Benzene 5,500.000 E 3.87722 24 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 42 71 43 2 Benzene 5,500.000 E 0.22859 25 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 865 71 43 2 Benzene 5,500.000 E 4.75847 26 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitabl M051 898 71 43 2 Benzene 5,500.000 E 4.93902 27 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitabl M051 597 71 43 2 Benzene 5,500.000 E 3.28126 28 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 528 71 43 2 Benzene 5,500.000 E 2.90626 29 B204 N Organic Solvents . Waste Derived Fuel Marketer , Ignitab M051 18 71 43 2 Benzene 5,500.000 E 0.10089 30 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 782 71 43 2 Benzene 5,500.000 E 4.29875 31 B204 N Organic Solvents; Waste Derived Fuel Marketer; Ignitable M061 3,498 71 43 2 Benzene 1,800.000 A, 93 6.29691 32 B204 N Organic Solvents; Waste Derived Fuel Marketer; Ignitable M061 5,310 71 43 2 Benzene 1,800.000 A, 93 9.55726 33 B204 N Organic Solvents; Waste Derived Fuel Marketer; Ignitable M061 1,201 71 43 2 Benzene 1,800.000 A, 93 2.16186 34 B204 N Organic Solvents; Waste Derived Fuel Marketer; Ignitable M061 580 71 43 2 Benzene 1,800.000 A, 93 1.04362 35 B204 N Organic Solvents; Waste Derived Fuel Marketer; Ignitable M061 3,945 71 43 2 Benzene 1,800.000 A, 93 7.10075 36 B204 N Organic Solvents; Waste Derived Fuel Marketer; Ignitable M061 2,439 71 43 2 Benzene 1,800.000 A, 93 4.39070 37 B204 N Organic Solvents; Waste Derived Fuel Marketer; Ignitable M061 818 71 43 2 Benzene 1,800.000 A, 93 1.47167 38 B204 N Organic Solvents; Waste Derived Fuel Marketer, Ignitable M061 4,510 71 43 2 Benzene 1,800.000 A, 93 8.11770 39 B204 N Organic Solvents; Waste Derived Fuel Marketer; Ignitable M061 5,435 71 43 2 Benzene 1,800.000 A, 93 9.78297 40 B201 N Lab Solvents M041 78 71 43 2 Benzene 1,400.180 E 1,400.180 E 0.10918 Row FORM CODE WW? WSTDESC SYSTYPE1 TOTWQTYton CAS CONSTITUENT WWCONCppm Basis LEACHATppm Basis CHMMASSton 103 41 B204 N Mixed Solvents M061 2,334 71 43 2 Benzene 1,000.000 A 0.250 E 2.33351 42 B219 N Liquid Waste Derived Fuel Received from Off site Blending Facility Fuels Consist of Waste Solvents, Paints, Inks, Etc. M051 5,162 71 43 2 Benzene 500.000 E 2.58100 43 B219 N Liquid Waste Derived Fuel Received from Off site Blending Facility. Fuels Consist of Waste Solvents, Paints, Inks, Etc. M051 458 71 43 2 Benzene 500.000 E 0.11600 44 B201 N Concentrated Solvent water Solution M041 577 71 43 2 Benzene 230.000 E 230.000 E 0.13274 45 B204 N M061 2,156 71 43 2 Benzene 200.000 A, 93 0.26729 46 B204 N M061 2,807 71 43 2 Benzene 200.000 A, 93 0.56143 47 B204 N M061 2,156 71 43 2 Benzene 200.000 A, 93 0.09685 48 B204 N M061 2,156 71 43 2 Benzene 200.000 A, 93 0.17469 49 B204 N M061 3,201 71 43 2 Benzene 200.000 A, 93 0.64020 50 B201 N Waste Solvent M041 668 71 43 2 Benzene 72.700 E 72.700 E 0.04859 51 B219 N Liquid Waste Derived Fuel from Off site Blending Facility. Fuels Consist of Waste Solvents, Paints, Inks, Etc M051 2,132 71 43 2 Benzene 50.000 E 0.10660 52 B204 N Blended Industrial Waste Solvents from Oldover Storage M051 16,380 71 43 2 Benzene 50.000 E 0.81901 53 B204 N Liquid Flammable Waste ( Methanol, Toluene) M051 16,169 71 43 2 Benzene 50.000 E 0.80846 54 B204 N Flammable & Combustible Wastes M041 1,089 71 43 2 Benzene 34.000 E 0.03703 55 B203 N Fuel M041 2,092 71 43 2 Benzene 16.000 A 14.000 A 0.03347 56 B204 N Flammable Liquid Chlorinated and Non chlorinated Solvent M051 5,292 71 43 2 Benzene 1.913 E93 0.01012 57 B205 N Oil Water Separator Bottoms; Sediments from Oil water M111 4,703 71 43 2 Benzene 1.850 0.00443 58 B204 N Mixed Solvent Waste ( Organic) M041 2,178 71 43 2 Benzene 1.000 E 0.00218 59 B204 N Mixed Solvent Waste ( Aqueous) M041 5,915 71 43 2 Benzene 1.000 E 0.00592 60 B101 Y Solvent Contaminated Groundwater Remediation Using an ai M083 445,193 71 43 2 Benzene 0.001 A 0.00045 61 B204 N Mixed Solvents M061 226 71 43 2 Benzene A 0.250 E 0.00113 62 B204 N Blending & Bulking Mixed Solvents M061 1,589 71 43 2 Benzene A 0.250 E 0.00794 63 B204 N Halogenated/ non halogenated Solvent from Distilling Part M041 377 79 00 5 1,1,2 Trichloroethane 10,000.000 3.76767 64 B204 N Halogenated/ non halogenated Solvent from Distilling Part M041 651 79 00 5 1,1,2 Trichloroethane 10,000.000 6.51294 65 B204 N Halogenated/ non halogenated Solvent from Distilling Part M041 2,291 79 00 5 1,1,2 Trichloroethane 10,000.000 22.91355 66 B204 N Flammable Liquid M051 7,241 79 00 5 1,1,2 Trichloroethane 8,854.167 E 64.11231 67 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 528 79 00 5 1,1,2 Trichloroethane 2,500.000 E 1.32103 68 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 782 79 00 5 1,1,2 Trichloroethane 2,500.000 E 1.95397 69 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitabl M051 597 79 00 5 1,1,2 Trichloroethane 2,500.000 E 1.49148 70 B204 N Organic Solvents . Waste Derived Fuel Marketer , Ignitab M051 18 79 00 5 1,1,2 Trichloroethane 2,500.000 E 0.04586 71 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 865 79 00 5 1,1,2 Trichloroethane 2,500.000 E 2.16294 72 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitabl M051 898 79 00 5 1,1,2 Trichloroethane 2,500.000 E 2.24501 73 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 705 79 00 5 1,1,2 Trichloroethane 2,500.000 E 1.76237 74 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 42 79 00 5 1,1,2 Trichloroethane 2,500.000 E 0.10390 75 B201 N Waste Solvent M041 668 79 00 5 1,1,2 Trichloroethane 2,180.985 E 2,180.985 E 1.45762 76 B204 N Blended Industrial Waste Solvents from Oldover Storage M051 16,380 79 00 5 1,1,2 Trichloroethane 500.000 8.19013 77 B204 N Liquid Flammable Waste ( Methanol, Toluene) M051 16,169 79 00 5 1,1,2 Trichloroethane 500.000 E 8.08463 78 B204 N Flammable Liquids M041 483 79 00 5 1,1,2 Trichloroethane 390.000 E 0.18847 79 B205 N Oil Water Separator Bottoms; Sediments from Oil water M111 4,703 79 00 5 1,1,2 Trichloroethane 3.800 E, 92 0.00909 80 B204 N Flammable Liquid Chlorinated and Non chlorinated Solvent M051 5,292 79 00 5 1,1,2 Trichloroethane 0.496 E93 0.00263 81 B101 Y Legacy Waste Treatment Sludges NA 4,256 79 00 5 1,1,2 Trichloroethane 0.033 0.00014 82 B204 N Paint & Solvent M024 69 79 46 9 2 Nitropropane 21,000.000 E. 93 21,000.000 E. 93 1.44843 83 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 528 79 46 9 2 Nitropropane 500.000 E 0.26421 84 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 705 79 46 9 2 Nitropropane 500.000 E 0.35247 85 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 865 79 46 9 2 Nitropropane 500.000 E 0.43259 86 B204 N Organic Solvents . Waste Derived Fuel Marketer , Ignitab M051 18 79 46 9 2 Nitropropane 500.000 E 0.00917 Row FORM CODE WW? WSTDESC SYSTYPE1 TOTWQTYton CAS CONSTITUENT WWCONCppm Basis LEACHATppm Basis CHMMASSton 104 87 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 782 79 46 9 2 Nitropropane 500.000 E 0.39079 88 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitab M051 42 79 46 9 2 Nitropropane 500.000 E 0.02078 89 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitabl M051 898 79 46 9 2 Nitropropane 500.000 E 0.44900 90 B204 N Organic Solvents , Waste Derived Fuel Marketer , Ignitabl M051 597 79 46 9 2 Nitropropane 500.000 E 0.29830 91 B207 N Pcb Contaminated Liquids M041 911 79 46 9 2 Nitropropane 50.000 E 0.01465 92 B205 N Oil Water Separator Bottoms; Sediments from Oil water M111 4,703 79 46 9 2 Nitropropane 0.020 E, 92 0.00005 105 6. USEPA Office of Solid Waste Industrial Surface Impoundment Survey Database Query Findings 106 Year 2000 Office of Solid Waste " Industrial Surface Impoundment Study" of Non Hazardous Wastes: Summary of Surface Impoundment Operating Status & Operating Quantities in Survey Sample Survey Metric Count in total sample Count of operating surface impoundments Surface impoundments which have stopped receiving wastes Don't know status ( no data)

1. Count of surface impoundments in survey sample 523 454 61 8 2. Count of facilities with surface impoundments in sample 155 134 39 4 3. Count of states with surface impoundments in sample 44 42 23 4 4. Size ( area) of surface impoundments in sample ( square meters):

datapoints ( nr. of surf. impoundments w/ data) 520 453 59 8 min 9.29 9.85 9.29 max 4.9 million 4.9 million 259,000 average 62,000 67,800 11,500 median 6,500 5. Typical wastewater operating quantities ( metric tons/ year):

datapoints ( nr. of surf. impoundments w/ data) 437 398 37 2 min 0.38 0.38 17.03 max 14.5 million 14.5 million 1.5 million average 308,000 331,000 71,000 sum 134.5 million 131.9 million 2.6 million 6. Typical sludge operating quantities ( metric tons/ year):

datapoints ( nr. of surf. impoundments w/ data) 164 148 16 0 min 1.41 1.41 3.62 max 2.1 million 2.1 million 1.4 million average 86,000 85,000 95,000 sum 14.1 million 12.6 million 1.5 million Explanatory Notes: ( a) Source: USEPA OSWER " Industrial Surface Impoundments in the United States", EPA 530 R 01 005, March 2001, http:// www. epa. gov/ OSWRCRA/ hazwaste/ ldr/ icr/ impdfs/ sisreprt. pdf. ( b) The survey sample consisted of data received from 155 facilities with 523 industrial surface impoundments; in comparison, the study estimates a US total universe of 16,782 industrial surface impoundments located at 7,459 facilities. 107 12 55 233 149 2623 3 9 2 1 2 2 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 < 100 100 to 1,000 1,000 to 10,000 10,000 to 100,000 100k to 200k 200k to 300k 300k to 400k 400k to 500k 500k to 600k 600k to 700k 700k to 800k 800k to 900k 900k to 1 million 1.0 to 1.1 million 1.1 to 1.2 million 1.9 to 2.0 million 2.9 to 3.0 million 3.9 to 4.0 million 4.8 to 4.9 million Surface Impoundment Size Bins ( Surface Area in Square Meters) 0 50 100 150 200 250 Count of Surface Impoundments ( sample = 520 w/ size data) Industrial Surface Impoundment Size Distribution ( Based on Year 2000 EPA Survey Sample of 523 surface impoundments at 155 facilities) 108 Count of Industrial Surface Impoundments in Operation Sometime Between 1990 1999 Which Received Influent RCRA Non Hazardous Wastewaters Containing One or More of the Four Target Chemicals*

A. Surface Impoundment Wastewaters ( only managing RCRA non hazardous wastewaters):

Chemical in Wastewaters* Count of economic sectors reporting chemical present in surface impoundment sludges** Count of surface impoundments with chemical present in wastewater*** Total quantity of chemical in wastewater within all impoundments ( kg) Quantity of chemical in wastewater influent ( kg/ year) Quantity of chemical in wastewater effluent ( kg/ year)

Benzene 4 1,108 ( sd= 665) 51 ( sd= 71) 4,164 ( sd= 3,496) 2,262 ( sd= 2,205)

1,1,2 Trichloroethane 1 14 ( sd= 18) 0 0 0 2 Ethoxyethanol 0 0 0 0 0 2 Nitropropane 0 0 0 0 0 B. Surface Impoundment Wastewater Sludges ( only generating RCRA non hazardous sludges):

Chemical in Wastewater Sludges* Count of surface impoundments with chemical present in sludge*** Total quantity of chemical in sludge within all impoundments ( kg) Quantity of chemical in sludge influent ( kg/ year) Quantity of chemical in sludge effluent ( kg/ year)

Benzene 581 0 0 0 1,1,2 Trichloroethane 0 0 0 0 2 Ethoxyethanol 0 0 0 0 2 Nitropropane 0 0 0 0 Explanatory Notes: ( a) Source: USEPA " Industrial Surface Impoundments in the United States", EPA 530 R 01 005, March 2001, http:// www. epa. gov/ OSWRCRA/ hazwaste/ ldr/ icr/ impdfs/ sisreprt. pdf. ( b) * The data in this table for these four chemicals may or may not represent the chemical as an industrial spent solvent. ( c) ** 15 economic sectors defined in the survey, based on 2 digit SIC codes. ( d) *** The survey estimated a US national total of 16,782 non hazardous wastewater management surface impoundments located at 7,459 facilities. These estimates are extrapolated from on an initial " screening survey" sample size of 2,285 facilities, followed by a " long survey" sample size of 221 facilities. ( e) sd = standard deviation of sampling distribution for survey based estimate. ( f) kg = kilogram = 2.2 pounds. 109 Summary of Industrial Surface Impoundment Liner Types According to Eight Liner Materials Categories Source: based on a sample of 214 surface impoundments with liner type data for 440 liners reported in OSW's year 2000 Industrial Surface Impoundment Survey ( ISIS) which collected information from a survey sample response of 660 impoundments at 221 facilities Category Item Surface Impoundment Liner Material Category ISIS Data Sample ( nr. of liners) Minimum liner thickness ( inches) Maximum liner thickness ( inches) 1 Brick 1 2.5 2.5 2 Cementitious 62 0.125 12 3 Clay 117 2 197 4 Plastic ( synthetic, etc.) 124 0.003 3.9 5 Sand 38 2 36 6 Soil 30 6 36 7 Stone 40 4 18 8 Textile ( synthetic, etc.) 28 0.23 39 Column total = 440 110 50.5%

18.2% 15.4%

11.2%

2.8% 1.4% 0.0% 0.0% 0.0% 0.0% 0.5%

1 2 3 4 5 6 7 8 9 10 11 Number of Liners Per Surface Impoundment 0 20 40 60 80 100 120 Count of Liners Source: OSW Industrial Surface Impoundment Survey, EPA 530 R 01 005, March 2001 ( based on a sample of 214 impoundments reporting liner data). Number of Liners Per Non Hazardous Waste Surface Impoundment 111 0.5% 4.6%

0.8% 17.1%

10.2% 29.2%

6.6%

1.5% 15.6%

11.5%

1.5% 0.3% 0.0% 0.5%

0 to 0.1 > 0.1 to 0.5 > 0.5 to 1 > 1 to 2 > 2 to 3 > 3 to 6 > 6 to 8 > 8 to 10 > 10 to 20 > 20 to 40 > 40 to 80 > 80 to 100 > 100 to 150 > 150 to 200 Liner Thickness ( Inches) 0 20 40 60 80 100 120 Count of Liners Source: OSW Industrial Surface Impoundment Survey, EPA 530 R 01 005, March 2001 ( based on a sample of 391 liners reporting thickness data convertible to inches). Surface Impoundment Liner Thickness 112 1940 1945 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 Year Liner Installed 0 5 10 15 20 25 30 Count of Impoundments Source: OSW Industrial Surface Impoundment Survey, EPA 530 R 01 005, March 2001 ( based on a sample of 327 liners with year data). Frequency of Liner Installation in Industrial Surface Impoundments 60 Year Period 1940 to 1999 113 Industrial Surface Impoundment Overtopping Events: ( based on year 2000 survey sample of 155 facilities with 523 surface impoundments)

Data item Facility ID nr. Impdt ID nr. Type of overtopping event Year of overtop Cause of overtopping event Gallons of waste released Operating status* 1999 SI surface area ( m^ 2) City State 1 1320 1 Overtopping  flow w/ solids through spillway 1995 Upset at wastewater treatment 1 258,999 Copperhill TN 2 1367 3 Overtopped into A001 1997 Pump to City failed 0 2 2,694 UNIONTOWN AL 3 1367 3 overtopped into A001 1998 pump to city failed 0 2 2,694 UNIONTOWN AL 4 1491 1 overtopping 1998 heavy rainfall 0 1 2,415 Houston TX 5 1491 2 overtopping 1998 heavy rainfall 0 1 3,066 Houston TX 6 1754 1 Overtopping 1997 Heavy Rain 500,000 3 2,323 ELWOOD IL 7 1754 1 Overtopping 1996 500 Yr Storm, Power Failure 8,400,000 3 2,323 ELWOOD IL 8 1754 1 Overtopping 1993 100 Yr Storm, Elec. Failure 1,800,000 3 2,323 ELWOOD IL 9 1754 2 Overtopping 1996 500 YR Storm Event 27,000 2 7,897 ELWOOD IL 10 2058 2 overtopping 1995 effluent pipe plugged 500 2 12,141 WICKLIFE KY 11 3104 1 overtopping 1996 heavy rainfall 75,000 2 1,533 WEST MEMPHIS AR 12 3104 2 Overtopping 1996 excess process flow 7,950,000 2 18,581 WEST MEMPHIS AR 13 3104 2 Overtopping 1996 heavy rainfall 225,000 2 18,581 WEST MEMPHIS AR 14 3150 13 overtopping 1995 potentially restricted drain line 2 19,425 COLUMBUS MS 15 3150 13 overtopping 1997 severe thunderstorm resulting in excess stormwater and restricted drain line 2 19,425 COLUMBUS MS 16 3177 1 Over filled the marsh and impoundment area 1998 12 inches of rain in 10 hours 2 80,937 MAGNOLIA AR 17 3413 1 Overtopping Foam Pond 1995 Blocked discharge line 2 285,708 MOBILE AL 18 4071 3 Houston Ship Channel rose above the top of the Dik 1983 Hurrican Alicia 2 708,201 BAYTOWN TX 19 4071 4 Houston ship channel rose above the top of the dik 1983 Hurricane Alicia 2 283,280 BAYTOWN TX 20 4071 5 Houston ship channel rose above top of dike wall 1983 Hurricane Alicia 2 424,920 BAYTOWN TX 21 4071 6 Houston ship channel rose above the top of the dik 1983 Hurricane Alicia 2 36,422 BAYTOWN TX 22 4104 2 overtopping of surface impoundment # 2 1995 high hydraulic load and 4" rainfall 2,500 2 11,331 ENKA NC 23 4718 4 Overtopping 1999 Hurricane Floyd 2 2,023 VANCEBORO NC 24 5087 1 overtopping 2000 heavy rain and high influent flow 3,000 2 16,187 Riverville VA 25 5174 1 Overtopping Unknown Extreme high tides or extreme storm runoff 1 31 FREELAND WA 26 6024 1 Overtopping 1997 High Winds 75 2 16,187 HENDERSON NV Data item Facility ID nr. Impdt ID nr. Type of overtopping event Year of overtop Cause of overtopping event Gallons of waste released Operating status* 1999 SI surface area ( m^ 2) City State 114 27 6177 1 Overflow through emergency spillway to Foam Pond S 1990 Secondary lift pumps tripped out. 20,000 2 2,843 BAILEYVILLE ME 28 6177 1 Overflow through emergency spillway to Foam Pond S 1992 River water treatment plant overflowed  no water being drawn. 42,000 2 2,843 BAILEYVILLE ME 29 6177 8 Discharge through overflow pipe. 1991 Pump station plugged 15,750 2 2,023 BAILEYVILLE ME 30 6177 9 Discharge line clean out was damaged. Geyser into 1991 In process of grading force main discharge at pond was hit and broken. 4,000 2 11,736 BAILEYVILLE ME 31 6177 9 Overflow through existing emergency wier. 1992 Float switchs and emergency overflow wier levels set wrong after engineering redesign. 1,357 2 11,736 BAILEYVILLE ME 32 6177 9 Underdrain Pump Station overflow through pipe to a 1991 Temporary pumping system failed. 58,233 2 11,736 BAILEYVILLE ME 33 6623 2 Overtopping 1985 Overfilled 100 2 3,586 NORTH POLE AK 34 6790 1 Overtopping 1998 Heavy rain 18,720 2 1,672 FREEPORT TX 35 6790 1 Overtopping 1998 Heavy rain, process upset 155,400 2 1,672 FREEPORT TX 36 6790 1 Overtopping 1998 Heavy rain, treatment not taking flow 11,400 2 1,672 FREEPORT TX 37 6790 1 Overtopping 1998 Process upsets 600 2 1,672 FREEPORT TX 38 6790 1 Overtopping 1998 Process upsets 60 2 1,672 FREEPORT TX 39 6790 1 Overtopping 1998 Heavy rain, loss of utilities 1,164,466 2 1,672 FREEPORT TX 40 6790 1 Overtopping 1998 Heavy rain 77,790 2 1,672 FREEPORT TX 41 6790 1 Overtopping 1999 Utilities upset 4,920 2 1,672 FREEPORT TX 42 6790 1 Overtopping 1998 Tropical storm Francis 167,640 2 1,672 FREEPORT TX 43 6790 8 overtopping ( typical of heavy rains) 1998 heavy rain 20,000 2 1,229 FREEPORT TX 44 6790 9 Overtopping 1998 River water pipe next to pond had leak. 2 534 FREEPORT TX 45 6790 9 Overtopping 1997 Heavy rainfall and pumps had been cutoff. 50,000 2 534 FREEPORT TX 46 6790 9 Overtopping 1998 Tropical Storm Francis 2 534 FREEPORT TX 47 6816 1 Overtopping 1995 Plug between pond 1 & pond 2 4,800 2 37,161 Marietta OH 48 6816 1 Overtopping 1998 Plug between pond 2 & pond 3 7,200 2 37,161 Marietta OH 49 6816 1 Overtopping 1995 Plug between pond 1 & pond 2 1,260 2 37,161 Marietta OH 50 6881 1 Overtopping 1997 5.75 inch rainfall event in a 12 hour period; cause of overflow was related to wave action 100,000 2 21,448 Deer Park TX 51 7278 1 Hurricane Danny 1998 Excessive Rain 2 390 THEODORE AL 52 8418 4 Overtopping 1990 Excessive rain and plugged effluent pipe. 400 1 3,716 RUSSELL MA 53 8689 7 Overtopping 1998 Heavy rainfall* ( see note) 2 669 COURTLAND AL Data item Facility ID nr. Impdt ID nr. Type of overtopping event Year of overtop Cause of overtopping event Gallons of waste released Operating status* 1999 SI surface area ( m^ 2) City State 115 54 8689 7 Overtopping 1997 Heavy rainfall* ( see note) 2 669 COURTLAND AL 55 8689 7 Overtopping 1996 Heavy rainfall* ( see note) 2 669 COURTLAND AL 56 8689 7 Overtopping 1996 Heavy rainfall* ( see note) 2 669 COURTLAND AL 57 8689 7 Overtopping 1996 Heavy rainfall* ( see note) 2 669 COURTLAND AL 58 8689 7 Overtopping 1996 Heavy rainfall* ( see note) 2 669 COURTLAND AL 59 8689 7 Overtopping 1998 Heavy rainfall* ( see note) 2 669 COURTLAND AL 60 8689 7 Overtopping 1997 Heavy rainfall* ( see note) 2 669 COURTLAND AL 61 8689 7 Overtopping 1997 Heavy rainfall* ( see note) 2 669 COURTLAND AL 62 8689 7 Overtopping 1997 Heavy rainfall* ( see note) 2 669 COURTLAND AL 63 8689 7 Overtopping 1996 Heavy rainfall* ( see note) 2 669 COURTLAND AL 64 8984 3 Dike failure 1993 Underdrain failure 0 2 6,877 SEAFORD DE 65 9251 1 Overtopping  Flooded Property 1998 Hurricane Georges 2 836 MOSS POINT MS 66 9260 16 Overtopping 1993 Extremely heavy rainfall 1,600,000 2 40,630 MANDAN ND 26 34 < non duplicative column totals Column total = 22,509,171 Non duplicative count = 17 Explanatory Notes: ( a) * Status: 1= stopped receiving waste; 2= still receiving waste; 3, 4 or 5= don't know ( b) Source: US EPA Office of Solid Waste, " Industrial Surface Impoundments in the United States", EPA 530 R 01 005, March 2001, ( http:// www. epa. gov/ OSWRCRA/ hazwaste/ ldr/ icr/ impdfs/ sisreprt. pdf). 0 Min 31 8,400,000 Max 708,201 562,729 Mean 37,830 13,575 Median 2,369 116 5 5 2 3 0 7 10 10 20 2 1 Before 1991 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 Year of Surface Impoundment Overtopping Event 0 5 10 15 20 25 Count of Overtopping Events ( 66 total)

Average annual overtopping events 1991 1999 = 7 ( 7 of 523 survey sample impoundments = 1.34%) A subtotal of 27 different impoundments failed 1991 1999 ( 27/ 523 = 5.2%) Summary of 1990s Industrial Surface Impoundment Overtopping Events Based on OSW survey sample of 523 surface impoundments at 155 facilities 117 Surface Impoundment Liner Failure Events ( based on year 2000 survey sample of 155 facilities with 523 surface impoundments)

Data item Facility survey ID nr. FAC_ ID Surface impdt ID nr. IMP_ ID Liner failure ID nr. LF_ ID Year failure began FB_ YR Year failure resolved DR_ YR Description or additional information about liner failure Liner ID nr. Type of Surface Impoundment Liner Liner thickness L_ THICK Thickness measure units L_ Unit Liner hydraulic conductivity LHC LHC measure units Year liner installed Implied years to failure after installation Surf. impdt surface area ( m^ 2) Surface impndmt location City State 1 2748 3 1 90 93 Repair work ( patching) began upon discovery of tears.; A new liner was installed. 1 HDPE 60 mils 93 9,680 NEW ELLENTON SC 2 2748 3 1 90 93 Repair work ( patching) began upon discovery of tears.; A new liner was installed. 2 EPDM 62.5 mils 70 20 9,680 NEW ELLENTON SC 3 2748 4 1 90 98 Repair work ( patching) began upon discovery of tears in 1990. A new liner was installed in 1998. 1 HDPE 60 mils 98 6,987 NEW ELLENTON SC 4 2748 4 1 90 98 Repair work ( patching) began upon discovery of tears in 1990. A new liner was installed in 1998. 2 EPDM 62.5 mils 70 20 6,987 NEW ELLENTON SC 5 3328 3 1 95 95 Date Failure Began: 07/ 29/ 95 est.; Date Discovered: 07/ 29/ 95 est.; Date Resolved: 8/ 20/ 95 est. 1 RipRap 6 in 8.40E 003 cm/ sec 76 19 5,574 BRANDENBURG KY 6 3328 3 1 95 95 Date Failure Began: 07/ 29/ 95 est.; Date Discovered: 07/ 29/ 95 est.; Date Resolved: 8/ 20/ 95 est. 2 Compacted Earth 6 in 1.00E 005 cm/ sec 5,574 BRANDENBURG KY 7 3328 3 1 95 95 Date Failure Began: 07/ 29/ 95 est.; Date Discovered: 07/ 29/ 95 est.; Date Resolved: 8/ 20/ 95 est. 3 PVC Liner 30 mils 1.00E 010 cm/ sec 5,574 BRANDENBURG KY 8 3328 3 1 95 95 Date Failure Began: 07/ 29/ 95 est.; Date Discovered: 07/ 29/ 95 est.; Date Resolved: 8/ 20/ 95 est. 4 Compacted Earth 2 ft 1.00E 005 cm/ sec 5,574 BRANDENBURG KY 9 3639 1 1 93 93 Date Discovered: Planned modification to inlet pipe ( entered 1993 as year discovered) 1 HDPE Liner 60 mils 1.00E 013 cm/ sec 91 2 2,023 MARSHALLTOWN IA 10 3639 1 1 93 93 Date Discovered: Planned modification to inlet pipe ( entered 1993 as year discovered) 2 Recompacted Clay Till 4 ft 0.00E+ 000 cm/ sec 2,023 MARSHALLTOWN IA 11 3639 1 1 93 93 Date Discovered: Planned modification to inlet pipe ( entered 1993 as year discovered) 3 Recompacted Clay Till 0.67 ft 0.00E+ 000 cm/ sec 2,023 MARSHALLTOWN IA 12 3639 1 2 99 Date Discovered: Small tear in HDPE liner in Free Board above maximum Leachate level.; Date Resolved: Pending ( entered 1999 as year discovered) 1 HDPE Liner 60 mils 1.00E 013 cm/ sec 91 8 2,023 MARSHALLTOWN IA 13 3639 1 2 99 Date Discovered: Small tear in HDPE liner in Free Board above maximum Leachate level.; Date Resolved: Pending ( entered 1999 as year discovered) 2 Recompacted Clay Till 4 ft 0.00E+ 000 cm/ sec 2,023 MARSHALLTOWN IA 14 3639 1 2 99 Date Discovered: Small tear in HDPE liner in Free Board above maximum Leachate level.; Date Resolved: Pending ( entered 1999 as year discovered) 3 Recompacted Clay Till 0.67 ft 0.00E+ 000 cm/ sec 2,023 MARSHALLTOWN IA 15 4732 1 1 80 80 Failure Began, Discovered, and Resolved: Approx. 1980 1 High density polyethylene 45 mils 0.00E+ 000 cm/ sec 95 1,547 WILLIAMSPORT PA 16 4732 1 1 80 80 Failure Began, Discovered, and Resolved: Approx. 1980 2 Fill Dirt 6 in 73 7 1,547 WILLIAMSPORT PA 17 4732 1 1 80 80 Failure Began, Discovered, and Resolved: Approx. 1980 3 PVC 40 mils 0.00E+ 000 cm/ sec 73 7 1,547 WILLIAMSPORT PA 18 4732 1 1 80 80 Failure Began, Discovered, and Resolved: Approx. 1980 4 Clay, compacted 5 ft 73 7 1,547 WILLIAMSPORT PA 19 6177 4 1 77 81 Date Failure Began: ~ 1977; Discovered: ~ 1977; Resolved: ~ 1977 1981 ( entered 1981 as date resolved) 1 Compacted Clay 2 ft 0.00E+ 000 cm/ sec 77 168,319 BAILEYVILLE ME 20 6177 4 1 77 81 Date Failure Began: ~ 1977; Discovered: ~ 1977; Resolved: ~ 1977 1981 ( entered 1981 as date resolved) 2 Bentonite Blanket 2 in 0.00E+ 000 cm/ sec 77 168,319 BAILEYVILLE ME 21 6177 4 1 77 81 Date Failure Began: ~ 1977; Discovered: ~ 1977; Resolved: ~ 1977 1981 ( entered 1981 as date resolved) 3 Compacted Till ( Over exposed bedrock) 3 ft 5.00E 007 cm/ sec 77 168,319 BAILEYVILLE ME 22 6177 5 1 77 81 Date Failure Began: ~ 1977; Discovered: ~ 1977; Resolved: ~ 1977 1981 ( entered 1981 as date resolved) 1 Compacted Clay 2 ft 0.00E+ 000 cm/ sec 77 133,458 BAILEYVILLE ME 23 6177 5 1 77 81 Date Failure Began: ~ 1977; Discovered: ~ 1977; Resolved: ~ 1977 1981 ( entered 1981 as date resolved) 2 Compacted Till ( Over exposed bedrock) 3 ft 5.00E 007 cm/ sec 77 133,458 BAILEYVILLE ME 24 6409 2 1 77 78 Date Failure Began: Between 10/ 77 & 04/ 78 ( entered 10/ 77); Date Discovered: 04/ 25/ 78; Date resolved: 05/ 05/ 78 1 Hypalon synthetic rubber 30 mils 77 86,270 MILLINOCKET ME 25 6409 2 1 77 78 Date Failure Began: Between 10/ 77 & 04/ 78 ( entered 10/ 77); Date Discovered: 04/ 25/ 78; Date resolved: 05/ 05/ 78 2 Sand 30 in 86,270 MILLINOCKET ME 26 6409 2 1 77 78 Date Failure Began: Between 10/ 77 & 04/ 78 ( entered 10/ 77); Date Discovered: 04/ 25/ 78; Date resolved: 3 PVC pipe 8 in 86,270 MILLINOCKET ME Data item Facility survey ID nr. FAC_ ID Surface impdt ID nr. IMP_ ID Liner failure ID nr. LF_ ID Year failure began FB_ YR Year failure resolved DR_ YR Description or additional information about liner failure Liner ID nr. Type of Surface Impoundment Liner Liner thickness L_ THICK Thickness measure units L_ Unit Liner hydraulic conductivity LHC LHC measure units Year liner installed Implied years to failure after installation Surf. impdt surface area ( m^ 2) Surface impndmt location City State 118 05/ 05/ 78 27 6519 1 1 98 99 Date Failure Began: E, 1998; Date Resolved: November 6, 1999; Note: The liner failure event referenced above involved minor tears above the water line due to sharps. Repairs were made using extrusion welded patches of 60 mil textured HDPE liner over the 1 Textured 60 mil HDPE liner 60 mils 97 1 5,342 MASSENA NY 28 6519 2 1 98 99 Date Failure Began: E. 1998; Date Discovered: E. October 1998; Date Resolved: November 6, 1999; Note: The liner failure event referenced above involved minor tears and cuts above the water line due to sharps. Repairs were made using extrusion welded patc 1 60 mil HDPE liner 60 mils 97 1 52,609 MASSENA NY 29 6519 3 1 99 99 Date Resolved: November 6, 1999; Note: The liner failure event referenced above involved liner punctures above the water line. Repairs were made using extrusion welded patches of 60 mil textured HDPE liner over the holes or tears. Memorandum dated 1 60 mil HDPE liner 60 mils 98 1 1,012 MASSENA NY 30 6623 1 1 88 88 Primary liner 1 Seamans 8228 ORLTA Arctic Liner 36 mils 1.00E 005 cm/ sec 1,759 NORTH POLE AK 31 6623 1 1 88 88 Primary liner 2 Poltnet PN 1000 Drain Fabric 1,000.00 mils 3.39E+ 000 cm/ sec 1,759 NORTH POLE AK 32 6623 1 1 88 88 Primary liner 3 Seamans 8228 ORLTA Arctic Liner 36 mils 1.00E 005 cm/ sec 1,759 NORTH POLE AK 33 6623 1 1 88 88 Primary liner 4 Mirafi 140N Geotextile 140 mils 8.15E+ 000 cm/ sec 1,759 NORTH POLE AK 34 6623 1 2 97 97 Primary liner 1 Seamans 8228 ORLTA Arctic Liner 36 mils 1.00E 005 cm/ sec 1,759 NORTH POLE AK 35 6623 1 2 97 97 Primary liner 2 Poltnet PN 1000 Drain Fabric 1,000.00 mils 3.39E+ 000 cm/ sec 1,759 NORTH POLE AK 36 6623 1 2 97 97 Primary liner 3 Seamans 8228 ORLTA Arctic Liner 36 mils 1.00E 005 cm/ sec 1,759 NORTH POLE AK 37 6623 1 2 97 97 Primary liner 4 Mirafi 140N Geotextile 140 mils 8.15E+ 000 cm/ sec 1,759 NORTH POLE AK 38 6623 2 1 95 96 1 Seamans 8228 ORLTA Arctic Liner 36 mils 1.00E 005 cm/ sec 3,586 NORTH POLE AK 39 6623 2 1 95 96 2 Poltnet PN 1000 Drain Fabric 1,000.00 mils 3.39E+ 000 cm/ sec 3,586 NORTH POLE AK 40 6623 2 1 95 96 3 Seamans 8228 ORLTA Arctic Liner 36 mils 1.00E 005 cm/ sec 3,586 NORTH POLE AK 41 6623 2 1 95 96 4 Mirafi 140N Geotextile 140 mils 8.15E+ 000 cm/ sec 3,586 NORTH POLE AK 42 6790 1 1 85 Date Resolved: Not resolved 1 concrete 3 in 80 5 1,672 FREEPORT TX 43 6790 2 1 85 Date Resolved: Not resolved 1 concrete 4 in 80 5 2,415 FREEPORT TX 44 6790 6 1 73 Date Failure Began: ??  1973; Date Discovered: ??  1975; date Resolved: Have not resolved 1 concrete 4 in 70 3 1,244 FREEPORT TX 45 6790 7 1 73 Date Failure Began: ??  1973; Date Discovered: ??  1975; date Resolved: Have not resolved 1 concrete 4 in 70 3 743 FREEPORT TX 46 7113 1 1 98 99 Date Resolved: November 20, 1998, July 7, 1999 ( See Attachment for Explanation), entered July 1999 as date resolved 1 HDPE 80 mils 0.00E+ 000 cm/ sec 99 1,421 GASTONIA NC 47 7113 1 1 98 99 Date Resolved: November 20, 1998, July 7, 1999 ( See Attachment for Explanation), entered July 1999 as date resolved 2 Hypalon 36 mils 1.51E 011 cm/ sec 88 10 1,421 GASTONIA NC 48 7113 1 2 99 99 Date Discovered: September 25, 1999; Date Resolved: November 26, 1999, December 27, 1999 ( See Attachment for Explanation), entered December 1999 as date resolved 1 HDPE 80 mils 0.00E+ 000 cm/ sec 99 1,421 GASTONIA NC 49 7113 1 2 99 99 Date Discovered: September 25, 1999; Date Resolved: November 26, 1999, December 27, 1999 ( See Attachment for Explanation), entered December 1999 as date resolved 2 Hypalon 36 mils 1.51E 011 cm/ sec 88 11 1,421 GASTONIA NC 50 7642 1 1 91 91 The modification to the concrete liner for the provision of weep holes to equalize hydrostatic pressure was initiated in 1966 and continues to present. 1 concrete with drilled holes 0.33 ft 65 26 7,469 Jesup GA Data item Facility survey ID nr. FAC_ ID Surface impdt ID nr. IMP_ ID Liner failure ID nr. LF_ ID Year failure began FB_ YR Year failure resolved DR_ YR Description or additional information about liner failure Liner ID nr. Type of Surface Impoundment Liner Liner thickness L_ THICK Thickness measure units L_ Unit Liner hydraulic conductivity LHC LHC measure units Year liner installed Implied years to failure after installation Surf. impdt surface area ( m^ 2) Surface impndmt location City State 119 51 7817 2 1 96 96 1 Polyethylene Geomembrane 60 mils 94 2 3,349 YORK NE 52 7848 1 1 84 84 1 High Density Polyethylene 0.08 mm 0.00E+ 000 cm/ sec 79 5 1,156 MT VERNON IN 53 7848 1 1 84 84 2 Sand 2 ft 79 5 1,156 MT VERNON IN 54 8178 1 1 90 90 1 sand 6 in 74 16 23,755 PERHAM MN 55 8178 1 1 90 90 2 PVC 20 in 74 16 23,755 PERHAM MN 56 8178 1 1 90 90 3 sand 12 in 74 16 23,755 PERHAM MN 57 8458 1 1 91 91 Date failure began and discovered: unknown; Date resolved: deep well injection, did not solve leak. 1 sand 2 in 72 19 29,137 Stockton CA 58 8458 1 1 91 91 Date failure began and discovered: unknown; Date resolved: deep well injection, did not solve leak. 2 polyethylene liner 6 mils 72 19 29,137 Stockton CA 59 8458 1 1 91 91 Date failure began and discovered: unknown; Date resolved: deep well injection, did not solve leak. 3 sand 2 in 72 19 29,137 Stockton CA 60 8458 2 1 91 91 Date failure began and discovered: DK; Date resolved: Deep well injection, did not solve leak. 1 sand 2 in 70 21 29,137 Stockton CA 61 8458 2 1 91 91 Date failure began and discovered: DK; Date resolved: Deep well injection, did not solve leak. 2 polyethylene liner 6 mils 70 21 29,137 Stockton CA 62 8458 2 1 91 91 Date failure began and discovered: DK; Date resolved: Deep well injection, did not solve leak. 3 sand 2 in 70 21 29,137 Stockton CA 63 8742 1 1 90 90 estimates 1 Petro Mat Twice Spray Coated with Cationic Asphalt Emulsion 0.17 in 69 21 7,810 KENAI AK 64 8761 1 1 86 86 1a Gunite Concrete 3 in 77 9 5,946 Billings MT 65 8761 1 1 86 86 1b Aspaltic Concrete 4 in 77 9 5,946 Billings MT 66 8761 1 2 96 96 1a Gunite Concrete 3 in 77 19 5,946 Billings MT 67 8761 1 2 96 96 1b Aspaltic Concrete 4 in 77 19 5,946 Billings MT 68 8761 1 3 98 99 1a Gunite Concrete 3 in 77 21 5,946 Billings MT 69 8761 1 3 98 99 1b Aspaltic Concrete 4 in 77 21 5,946 Billings MT 70 8761 2 1 89 Date Failure Began: DK 1A Gunite Concrete 4 in 68 1,626 Billings MT 71 8761 2 1 89 Date Failure Began: DK 1B Fibermesh Concrete 4 in 89 1,626 Billings MT 72 8761 2 1 89 Date Failure Began: DK 2 Asphaltic Concrete 4 in 68 1,626 Billings MT 73 9194 4 1 92 92 1 HDPE membrane 60 mils 1.00E 009 cm/ sec 92 2,787 THEODORE AL 74 9194 4 1 92 92 2 Concrete 6 in 0.00E+ 000 cm/ sec 87 5 2,787 THEODORE AL 75 9194 9 1 97 97 Date Resolved: October 1997 ( see also response to question C 14b) 1 HDPE membrane 60 mils 1.00E 009 cm/ sec 76 21 5,638 THEODORE AL 76 9194 9 1 97 97 Date Resolved: October 1997 ( see also response to question C 14b) 2 sand 0.5 ft 5,638 THEODORE AL 77 9260 12 1 95 The date failure and date discovered are Unknown. 1 Epoxy 0.05 in 95 642 MANDAN ND 78 9260 12 1 95 The date failure and date discovered are Unknown. 2 Reinforced Concrete 4 in 58 642 MANDAN ND 19 30 < Non duplicative column totals Min = 0.05 Min = 1 Non duplicative total> 17 Max = 1000 Max = 26 Mean = 63.4 Mean = 12.3 Median = 6.0 Median = 11.0 Source: US EPA Office of Solid Waste, " Industrial Surface Impoundments in the United States", EPA 530 R 01 005, March 2001, http:// www. epa. gov/ OSWRCRA/ hazwaste/ ldr/ icr/ impdfs/ sisreprt. pdf Data pnts = 78 Data pnt= 39 120 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 Year of Surface Impoundment Liner Failure 0 1 2 3 4 5 Count of Liner Failure Events Average annual count of surface impoundments with at least one liner failure = 1.2 impoundments ( 1.2 of 523 sample = 0.23%) Summary of Industrial Surface Impoundment Liner Failures ( Based on an EPA Survey Sample of 523 Surface Impoundments at 155 Facilities) 121 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Number of Years Between Failure Event And Liner Installation 0 1 2 3 4 5 6 7 8 Count of Liner Failure Events ( 39 total datapoints)

Median number of years to failure after liner installation = 11 Summary of Years Until Surface Impoundment Liner Failure ( Based on an EPA Survey Sample of 523 Surface Impoundments at 155 Facilities) 122 7. Internet Website Sources ! USEPA RCRA Hazardous Waste Biennial Reporting System ( BRS) for Industrial Wastes Regulated as RCRA Hazardous ! USEPA RCRAInfo Identity of Facilities Which Generate or Manage RCRA Industrial Hazardous Wastes ! USEPA Toxics Release Inventory ( TRI) for Manufacture, Processing, Use, & Environmental Releases of Chemicals ! USEPA RCRA National Hazardous Waste Constituent Survey ( NHWCS)

! USEPA Industrial Surface Impoundment Study ( SIS) of Industrial Wastes 123 USEPA Biennial Reporting System ( BRS) Database Query Possibilities ( USEPA Envirofacts Website) 124 USEPA RCRAInfo Database for Identity of Facilities Which Generate or Manage RCRA Hazardous Wastes ( Envirofacts Website) 125 USEPA Toxics Release Inventory ( TRI) Database Query Possibilities ( Envirofacts Website) 126 USEPA Office of Solid Waste 1996 " National Hazardous Waste Constituent Survey" ( NHWCS) 127 USEPA Office of Solid Waste Year 2000 Industrial Surface Impoundment Study ( SIS)


[Federal Register Volume 77, Number 196 (Wednesday, October 10, 2012)]
[Notices]
[Pages 61647-61649]
[FR Doc No: 2012-24859]

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SECURITIES AND EXCHANGE COMMISSION

[Release No. 34-67971; File No. SR-FINRA-2012-044]

Self-Regulatory Organizations; Financial Industry Regulatory
Authority, Inc.; Notice of Filing and Immediate Effectiveness of
Proposed Rule Change Relating to the Trading Activity Fee Rate for
Transactions in Security Futures

October 3, 2012.
    Pursuant to Section 19(b)(1) of the Securities Exchange Act of 1934
(``Act'') \1\ and Rule 19b-4 thereunder,\2\ notice is hereby given that
on September 26, 2012, the Financial Industry Regulatory Authority,
Inc. (``FINRA'') filed with the Securities and Exchange Commission
(``Commission'') the proposed rule change as described in Items I, II,
and III below, which Items have been prepared by FINRA. FINRA has
designated the proposed rule change as ``establishing or changing a
due, fee or other charge'' under Section 19(b)(3)(A)(ii) of the Act \3\
and Rule 19b-4(f)(2) thereunder,\4\ which renders the proposal
effective upon filing with the Commission. The Commission is publishing
this notice to solicit comments on the proposed rule change from
interested persons.
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    \1\ 15 U.S.C. 78s(b)(1).
    \2\ 17 CFR 240.19b-4.
    \3\ 15 U.S.C. 78s(b)(3)(A)(ii).
    \4\ 17 CFR 240.19b-4(f)(2).
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I. Self-Regulatory Organization's Statement of the Terms of Substance
of the Proposed Rule Change

    FINRA is proposing to amend Section 1 of Schedule A to the FINRA
By-Laws to adjust the rate of FINRA's Trading Activity Fee (``TAF'')
for round turn transactions in security futures.
    The text of the proposed rule change is available on FINRA's Web
site at http://www.finra.org, at the principal office of FINRA and at
the Commission's Public Reference Room.

II. Self-Regulatory Organization's Statement of the Purpose of, and
Statutory Basis for, the Proposed Rule Change

    In its filing with the Commission, FINRA included statements
concerning the purpose of and basis for the proposed rule change and
discussed any comments it received on the proposed rule change. The
text of these statements may be examined at the places specified in
Item IV below. FINRA has prepared summaries, set forth in sections A,
B, and C below, of the most significant aspects of such statements.

A. Self-Regulatory Organization's Statement of the Purpose of, and
Statutory Basis for, the Proposed Rule Change

1. Purpose
    FINRA's primary member fee structure consists of the following: the
Personnel Assessment; the Gross Income Assessment; and the TAF. These
fees are used to fund FINRA's regulatory activities, including
examinations; financial monitoring; and FINRA's policymaking,
rulemaking, and

enforcement activities.\5\ The proposed rule change amends the TAF rate
for round turn transactions in security futures to match the fee
charged by the National Futures Association (``NFA'').
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    \5\ See FINRA By-Laws, Schedule A, Sec.  1(a).
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    FINRA initially adopted the TAF in 2002 as a replacement for an
earlier regulatory fee based on trades reported to Nasdaq's Automated
Confirmation Transaction system then in place.\6\ Currently, the TAF is
generally assessed on the sale of all exchange registered securities
wherever executed (except debt securities that are not TRACE-Eligible
Securities), over-the-counter equity securities, security futures,
TRACE-Eligible Securities (provided that the transaction is a
Reportable TRACE Transaction), and all municipal securities subject to
Municipal Securities Rulemaking Board reporting requirements. The rules
governing the TAF also include a list of transactions exempt from the
TAF, including transactions in security futures held in futures (as
opposed to securities) accounts.\7\
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    \6\ See Securities Exchange Act Release No. 46416 (August 23,
2002), 67 FR 55901 (August 30, 2002).
    \7\ See FINRA By-Laws, Schedule A, Sec.  1(b)(2)(J).
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    For transactions in security futures held in securities accounts,
members must pay to FINRA a fee for each round turn transaction
(treated as including one purchase and one sale of a contract of sale
for future delivery) of a security future.\8\ The current TAF rate for
security futures transactions is $0.04 per contract for each round turn
transaction.\9\
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    \8\ See FINRA By-Laws, Schedule A, Sec.  1(b)(3)(C).
    \9\ See FINRA By-Laws, Schedule A, Sec.  1. This rate has been
in place since October 1, 2002. See NASD Notice to Members 02-75
(November 2002).
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    On June 1, 2012, the NFA submitted an NFA Interpretive Notice to
the Commodity Futures Trading Commission (``CFTC'') regarding the NFA's
assessment fee on diminutive notional value contracts and security
futures products.\10\ Pursuant to the NFA Filing, effective September
1, 2012, the NFA reduced its assessment fee on security futures
transactions from $0.04 per contract for each round turn transaction to
$0.00008 with a minimum fee of $0.01 per round turn transaction. The
NFA Filing notes that the $0.04 rate had been in place since 2002 and,
when adopted, was intended ``to ensure that NFA's fees do not provide a
disincentive for customers to carry [security futures products] in the
futures accounts of NFA Member firms.''
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    \10\ See NFA Notice to Members I-12-15 (July 20, 2012); NFA
Filing from Thomas W. Sexton, Senior Vice President and General
Counsel, NFA, to David A. Stawick, Office of the Secretariat, CFTC,
dated June 1, 2012 (``NFA Filing'').
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    To ensure that the TAF does not create a disincentive to holding
security futures in securities accounts, FINRA is proposing to amend
the TAF rate for security future transactions from $0.04 per contract
for each round turn transaction to $0.00008 per contract for each round
turn transaction, with a minimum fee of $0.01 per round turn
transaction. FINRA believes that amending the TAF rate on security
futures transactions to match the rate charged on such transactions by
the NFA will ensure that transaction fees do not influence the decision
on whether to hold security futures in a futures or in a securities
account.\11\
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    \11\ FINRA notes that the NFA Filing states that the NFA was
adjusting its assessment rate on security futures, at least in part,
to avoid having the assessment rate provide a disincentive to
holding security futures in a futures account. The NFA Filing notes
that a disincentive could be created because FINRA does not charge
the security futures TAF rate on trades in security futures that
result in delivery of the underlying securities ``but rather charges
a securities fee that is capped at $4.50.'' See NFA Filing, supra
note 10, at 4. Since the TAF was adopted, FINRA has charged such
transactions based on the TAF equity rate structure rather than the
rate for round turn transactions in security futures. See NASD
Notice to Members 02-63, Question 10 (September 2002); see also TAF
Frequently Asked Question 500.4, available at www.finra.org/taf/faq.
FINRA notes that it is not changing this guidance; however, as of
July 1, 2012, the cap on the TAF assessment for transactions in
equity securities was increased to $5.95. See Regulatory Notice 12-
31 (June 2012).
---------------------------------------------------------------------------

    The implementation date of the proposed rule change will be October
1, 2012. FINRA will announce the implementation date of the proposed
rule change in a Regulatory Notice.
2. Statutory Basis
    FINRA believes that the proposed rule change is consistent with the
provisions of Section 15A(b)(5) of the Act,\12\ which requires, among
other things, that FINRA rules provide for the equitable allocation of
reasonable dues, fees and other charges among members and issuers and
other persons using any facility or system that FINRA operates or
controls. Because of the NFA's amendment to its assessment fee for
transactions in security futures held in futures accounts, FINRA
believes that the proposed rate change to the TAF is now necessary to
ensure that there is no disincentive to hold security futures in a
security account because of the fees charged on round turn transactions
in security futures.
---------------------------------------------------------------------------

    \12\ 15 U.S.C. 78o-3(b)(5).
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B. Self-Regulatory Organization's Statement on Burden on Competition

    FINRA does not believe that the proposed rule change will result in
any burden on competition that is not necessary or appropriate in
furtherance of the purposes of the Act.

C. Self-Regulatory Organization's Statement on Comments on the Proposed
Rule Change Received From Members, Participants, or Others

    Written comments were neither solicited nor received.

III. Date of Effectiveness of the Proposed Rule Change and Timing for
Commission Action

    The foregoing rule change has become effective pursuant to Section
19(b)(3)(A) of the Act \13\ and paragraph (f)(2) of Rule 19b-4
thereunder.\14\ At any time within 60 days of the filing of the
proposed rule change, the Commission summarily may temporarily suspend
such rule change if it appears to the Commission that such action is
necessary or appropriate in the public interest, for the protection of
investors, or otherwise in furtherance of the purposes of the Act. If
the Commission takes such action, the Commission shall institute
proceedings to determine whether the proposed rule should be approved
or disapproved.
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    \13\ 15 U.S.C. 78s(b)(3)(A).
    \14\ 17 CFR 240.19b-4(f)(2).
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IV. Solicitation of Comments

    Interested persons are invited to submit written data, views, and
arguments concerning the foregoing, including whether the proposed rule
change is consistent with the Act. Comments may be submitted by any of
the following methods:

Electronic Comments

     Use the Commission's Internet comment form (http://www.sec.gov/rules/sro.shtml); or
     Send an email to<EMAIL_ADDRESS>Please include
File Number SR-FINRA-2012-044 on the subject line.

Paper Comments

     Send paper comments in triplicate to Elizabeth M. Murphy,
Secretary, Securities and Exchange Commission, 100 F Street NE.,
Washington, DC 20549-1090.

All submissions should refer to File Number SR-FINRA-2012-044. This
file number should be included on the subject line if email is used. To
help the Commission process and review your comments more efficiently,
please use only one method. The Commission will post all comments on
the Commission's Internet Web site (http://www.sec.gov/rules/sro.shtml). Copies of the submission, all subsequent

amendments, all written statements with respect to the proposed rule
change that are filed with the Commission, and all written
communications relating to the proposed rule change between the
Commission and any person, other than those that may be withheld from
the public in accordance with the provisions of 5 U.S.C. 552, will be
available for Web site viewing and printing in the Commission's Public
Reference Room, 100 F Street NE., Washington, DC 20549, on official
business days between the hours of 10 a.m. and 3 p.m. Copies of such
filing also will be available for Web site inspection and printing at
the principal office of FINRA. All comments received will be posted
without change; the Commission does not edit personal identifying
information from submissions. You should submit only information that
you wish to make publicly available. All submissions should refer to
File Number SR-FINRA-2012-044 and should be submitted on or before
October 31, 2012.

    For the Commission, by the Division of Trading and Markets,
pursuant to delegated authority.\15\
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    \15\ 17 CFR 200.30-3(a)(12).
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Kevin M. O'Neill,
Deputy Secretary.
[FR Doc. 2012-24859 Filed 10-9-12; 8:45 am]
BILLING CODE 8011-01-P


1 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D. C. 20460 OFFICE OF PREVENTION, PESTICIDES AND TOXIC SUBSTANCES Chemical: Propiconazole, Triadimerol PC Code: 122101, 127201 DP Barcode: D329230, D329271 MEMORANDUM DATE: June 15, 2006 SUBJECT: Response to Triazole Task Force Comments on the FQPA Drinking Water Assessment for 1,2,4 Triazole ( 1,2,4 T), Triazole alanine ( TA), and Triazole acetic acid ( TAA).

FROM: James Hetrick, Ph. D., Senior Physical Scientist Iwona Maher, Chemist Nancy Andrews, Ph. D, Branch Chief Environmental Risk Branch 1 Environmental Fate and Effects Division ( 7507P)

TO: Susan Lewis, RM 51, Branch Chief Special Review and Reregistration Division ( 7505C )

This memorandum provides a response to the Triazole Task Force ( TTF) Comments on the EFED FQPA drinking water assessment for 1,2,4 T, TA, and TAA. The TFF stated the revised drinking water assessment has major errors because of incorrect PRZM/ EXAMS model input parameters as well as the use of erroneous assumptions. The registrant comments and EFED responses are summarized below.

1. TTF Comment: The foliar extraction ( FEXTRC) parameter should be set to 0.5 for foliar applications as per EFED input parameter guidance. 2 EFED Response: EFED agrees the foliar extraction parameter ( FEXTRC) should be set to 0.5 for foliar pesticide applications. In the EFED assessment, it was assumed triazole residues are foliar applied ( CAM= 2) to turf and apples. Although this assumption is probably correct for turf, it may be inappropriate for apples. EFED revised the modeling to incorporate the default foliar extraction parameter ( Table 1).

Table 1. 1,2,4 Triazole estimated drinking water concentrations from surface water sources ( FEXTRC = 0.5). Estimated Drinking Water Concentrations ( ppb) Scenario Annual Fungicide Application Rate ( lb ai/ acre) Aerobic soil metabolism T1/ 2 1 in 10 year annual peak 1 in 10 year annual mean 36 year annual mean PA golf course turf ( PCA = 1) 1.3 x 6 = 7.8 107 days 4.04 1.56 0.71 NC apples ( PCA = 0.87) 1.0 x 2 = 2.0 107 days 4.48 1.10 0.40 2. TTF Comment: The registrant stated the assumption of 100% conversion of 1,2,4 T to TA or TAA is incorrect. The registrant referenced aerobic soil metabolism studies ( MRID 45297203, 45284027, 45284032, 45284038) showing the maximum formation percentage of TAA at 18% of applied radioactivity and TA as not detectable ( 0 % of applied radioactivity). Additionally, they stated that separate PRZM/ EXAMS simulations were possible for TAA because the TTF submitted aerobic soil metabolism and adsorption/ desorption data ( MRID 46017601) for TAA. PRZM/ EXAMS simulations for TA are not needed because this degradation product is not found in aerobic soil metabolism studies.

EFED Response: The assumption of 100% conversion of 1,2,4 T to TA and TAA was used to provide screening level concentrations of TA and TAA in drinking water. This approach was used because it is unclear on the extent of transformation of 1,2,4 T to TA and TAA in aquatic environments. Prothioconazole, for example, formed 41.8% of triazole in the total water/ sediment system ( 37.2% in the water column and 6.1% in soil) at 120 days post treatment, which was the last sampling interval in the laboratory aerobic aquatic metabolism study ( MRID 46246515). More importantly, EFED was not aware on the submission of environmental fate data ( MRID 46017601) for TAA.

3. TTF Comment: The registrant expressed concern about the use of a 250 day half life for triazole modeling. They provided an email from Sid Abel ( former ERB1 Branch Chief) stating the 250 day half life value will not be used in the drinking water assessment because it was derived from a study with high triazole concentrations. Such concentrations are not expected in the environment. 3 EFED Response: EFED agrees the triazole modeling using the 250 day half life is not appropriate for modeling of 1,2, 4 T. This half live value, however, was used in addition to 107 days to serve as upper bound, comparison concentration. It was not intended to be used in the human health exposure assessment. More importantly, the PRZM model is not sensitive to aerobic soil metabolism half life when they are above 100 days.

4. TTF Comment: The registrant stated the national percent cropped area ( PCA) is not appropriate for triazole assessment. They state that regional PCAs should be employed for the apple and minor crop scenarios.

EFED Response: EFED uses the regional based PCAs when the national based corrected drinking water estimated concentrations ( DWEC) exceed the HED exposure endpoint. More importantly, the conazole fungicides can be used on numerous major and minor crops in broad geographic areas which limit the utility of the regional PCA approach. Additionally, regional PCAs are not appropriate for turf scenario because they are based strictly on agricultural crops.

5. TTF Comment: The registrant stated the highest label rate for myclobutanil is 7.8 lbs a. i./ A/ season. They believe the myclobutanil application rate of 10.38 lbs ai./ A does not represent a valid myclobutanil label.

EFED Response: EFED modeled turf for the seasonal application rates of 10.38 lbs of a. i./ acre ( EPA Reg. No. 62719 417). EFED revised the PRZM/ EXAMS modeling on turf to represent the 7.8 lbs a. i./ A ( Table 1). 4 Appendix 1 PRZM EXAMS Output Files Turf Application in PA at 1.3 lb ai/ acre applied six times ( the aerobic half life 107 days)

stored as triazolePAturf2006. out Chemical: triazole PRZM environment: PAturfC. txt modified Monday, 24 November 2003 at 14: 49: 51 EXAMS environment: ir298. exv modified Thuday, 29 August 2002 at 16: 34: 12 Metfile: w14737. dvf modified Wedday, 3 July 2002 at 10: 06: 12 Water segment concentrations ( ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 2.859 2.806 2.596 2.269 2.038 0.7318 1962 1.02 1.005 0.9342 0.8053 0.8189 0.5625 1963 0.332 0.3275 0.3093 0.2726 0.2481 0.1393 1964 0.1226 0.1204 0.1114 0.1028 0.09537 0.05267 1965 0.05683 0.05581 0.05298 0.04558 0.04117 0.02403 1966 0.2487 0.2441 0.2261 0.1957 0.1762 0.06366 1967 8.924 8.762 8.408 7.514 6.737 2.703 1968 2.096 2.067 1.952 1.72 1.566 0.8627 1969 1.13 1.112 1.038 0.8847 0.7911 0.3462 1970 1.118 1.098 1.052 0.9129 0.8158 0.3847 1971 0.7455 0.7329 0.689 0.588 0.525 0.3378 1972 5.373 5.308 4.942 4.588 4.247 1.878 1973 3.733 3.664 3.389 2.871 2.55 1.412 1974 1.608 1.58 1.473 1.309 1.228 0.7927 1975 1.089 1.069 0.9993 0.8884 0.8722 0.481 1976 1.39 1.372 1.273 1.085 0.973 0.4236 1977 0.8181 0.8027 0.7431 0.6302 0.561 0.3642 1978 1.244 1.221 1.13 1.039 0.9572 0.5163 1979 2.764 2.737 2.572 2.198 2.063 1.057 1980 0.7413 0.7313 0.6907 0.6086 0.5541 0.2886 1981 1.046 1.027 0.9507 0.8531 0.8257 0.3765 1982 2.934 2.884 2.687 2.426 2.376 1.137 1983 1.119 1.099 1.019 0.865 0.78 0.5368 1984 2.913 2.859 2.73 2.438 2.203 1.023 1985 1.842 1.808 1.689 1.433 1.278 0.7137 1986 1.011 0.9942 0.9247 0.7993 0.7336 0.4345 1987 1.492 1.466 1.359 1.159 1.043 0.4993 1988 1.855 1.827 1.715 1.45 1.291 0.6486 1989 1.854 1.82 1.728 1.592 1.494 0.8169 1990 4.069 3.996 3.703 3.285 3.069 1.572 Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.032258064516129 8.924 8.762 8.408 7.514 6.737 2.703 0.0645161290322581 5.373 5.308 4.942 4.588 4.247 1.878 0.0967741935483871 4.069 3.996 3.703 3.285 3.069 1.572 0.129032258064516 3.733 3.664 3.389 2.871 2.55 1.412 0.161290322580645 2.934 2.884 2.73 2.438 2.376 1.137 0.193548387096774 2.913 2.859 2.687 2.426 2.203 1.057 0.225806451612903 2.859 2.806 2.596 2.269 2.063 1.023 0.258064516129032 2.764 2.737 2.572 2.198 2.038 0.8627 0.290322580645161 2.096 2.067 1.952 1.72 1.566 0.8169 0.32258064516129 1.855 1.827 1.728 1.592 1.494 0.7927 0.354838709677419 1.854 1.82 1.715 1.45 1.291 0.7318 0.387096774193548 1.842 1.808 1.689 1.433 1.278 0.7137 0.419354838709677 1.608 1.58 1.473 1.309 1.228 0.6486 0.451612903225806 1.492 1.466 1.359 1.159 1.043 0.5625 0.483870967741936 1.39 1.372 1.273 1.085 0.973 0.5368 5 0.516129032258065 1.244 1.221 1.13 1.039 0.9572 0.5163 0.548387096774194 1.13 1.112 1.052 0.9129 0.8722 0.4993 0.580645161290323 1.119 1.099 1.038 0.8884 0.8257 0.481 0.612903225806452 1.118 1.098 1.019 0.8847 0.8189 0.4345 0.645161290322581 1.089 1.069 0.9993 0.865 0.8158 0.4236 0.67741935483871 1.046 1.027 0.9507 0.8531 0.7911 0.3847 0.709677419354839 1.02 1.005 0.9342 0.8053 0.78 0.3765 0.741935483870968 1.011 0.9942 0.9247 0.7993 0.7336 0.3642 0.774193548387097 0.8181 0.8027 0.7431 0.6302 0.561 0.3462 0.806451612903226 0.7455 0.7329 0.6907 0.6086 0.5541 0.3378 0.838709677419355 0.7413 0.7313 0.689 0.588 0.525 0.2886 0.870967741935484 0.332 0.3275 0.3093 0.2726 0.2481 0.1393 0.903225806451613 0.2487 0.2441 0.2261 0.1957 0.1762 0.06366 0.935483870967742 0.1226 0.1204 0.1114 0.1028 0.09537 0.05267 0.967741935483871 0.05683 0.05581 0.05298 0.04558 0.04117 0.02403 0.1 4.0354 3.9628 3.6716 3.2436 3.0171 1.556 Average of yearly averages: 0.706002 Inputs generated by pe4. pl  8 August 2003 Data used for this run: Output File: triazolePAturf2006 Metfile: w14737. dvf PRZM scenario: PAturfC. txt EXAMS environment file: ir298. exv Chemical Name: triazole Description Variable Name Value Units Comments Molecular weight mwt 69.07 g/ mol Henry's Law Const. henry 1.97e 10 atm m^ 3/ mol Vapor Pressure vapr 1.65e 3 torr Solubility sol 7.0e+ 6 mg/ L Kd Kd 0.72 mg/ L Koc Koc mg/ L Photolysis half life kdp 0 days Half life Aerobic Aquatic Metabolism kbacw 214 days Halfife Anaerobic Aquatic Metabolism kbacs 504 days Halfife Aerobic Soil Metabolism asm 107 days Halfife Hydrolysis: pH 7 161 days Half life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI 0.1 cm Application Rate: TAPP .107 kg/ ha Application Efficiency: APPEFF 1.0 fraction Spray Drift DRFT 0.0 fraction of application rate applied to pond Application Date Date 07 05 dd/ mm or dd/ mmm or dd mm or dd mmm Interval 1 interval 14 days Set to 0 or delete line for single app. Interval 2 interval 14 days Set to 0 or delete line for single app. Interval 3 interval 14 days Set to 0 or delete line for single app. Interval 4 interval 14 days Set to 0 or delete line for single app. Interval 5 interval 14 days Set to 0 or delete line for single app. Record 17: FILTRA IPSCND 1 UPTKF Record 18: PLVKRT PLDKRT FEXTRC 0.5 Flag for Index Res. Run IR IR Flag for runoff calc. RUNOFF total none, monthly or total( average of entire run) 6 Application to Apples in PA at 1.0 lb ai/ acre applied twice ( the aerobic half life 107 days)

stored as triazoleNCapples2006. out Chemical: triazole PRZM environment: NCappleC. txt modified Monday, 24 November 2003 at 14: 49: 39 EXAMS environment: ir298. exv modified Thuday, 29 August 2002 at 16: 34: 12 Metfile: w03812. dvf modified Wedday, 3 July 2002 at 10: 05: 50 Water segment concentrations ( ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1965 1.738 1.697 1.54 1.257 1.085 0.3853 1966 2.991 2.924 2.695 2.389 2.083 0.782 1967 1.07 1.046 0.9628 0.8318 0.7504 0.3354 1968 0.5069 0.4949 0.467 0.3844 0.3366 0.1488 1969 0.577 0.5637 0.5202 0.4419 0.3861 0.1495 1970 0.06915 0.06775 0.0623 0.05537 0.05381 0.03088 1971 1.358 1.327 1.231 1.032 0.8926 0.3205 1972 2.852 2.788 2.646 2.271 1.973 0.7296 1973 4.876 4.766 4.422 3.999 3.488 1.297 1974 2.11 2.062 1.902 1.645 1.433 0.5958 1975 2.55 2.507 2.327 1.914 1.651 0.6206 1976 2.483 2.437 2.223 1.932 1.689 0.6489 1977 0.5074 0.4958 0.4501 0.4078 0.3656 0.1789 1978 1.474 1.44 1.359 1.164 1.01 0.3753 1979 0.5052 0.4936 0.4495 0.3956 0.345 0.1488 1980 5.777 5.652 5.264 4.248 3.627 1.274 1981 1.198 1.171 1.074 0.9364 0.8247 0.3873 1982 0.6178 0.6033 0.5553 0.4598 0.3954 0.1609 1983 0.5982 0.5846 0.5413 0.4517 0.3883 0.1478 1984 1.991 1.947 1.763 1.587 1.434 0.5528 1985 0.181 0.1775 0.1636 0.1368 0.12 0.06163 1986 0.5664 0.5535 0.5072 0.4117 0.3525 0.1264 1987 5.843 5.704 5.177 4.185 3.579 1.255 1988 0.5215 0.5114 0.4712 0.3939 0.3455 0.1765 1989 1.892 1.849 1.766 1.641 1.448 0.5467 1990 2.412 2.357 2.16 1.827 1.593 0.6138 Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.037037037037037 5.843 5.704 5.264 4.248 3.627 1.297 0.0740740740740741 5.777 5.652 5.177 4.185 3.579 1.274 0.111111111111111 4.876 4.766 4.422 3.999 3.488 1.255 0.148148148148148 2.991 2.924 2.695 2.389 2.083 0.782 0.185185185185185 2.852 2.788 2.646 2.271 1.973 0.7296 0.222222222222222 2.55 2.507 2.327 1.932 1.689 0.6489 0.259259259259259 2.483 2.437 2.223 1.914 1.651 0.6206 0.296296296296296 2.412 2.357 2.16 1.827 1.593 0.6138 0.333333333333333 2.11 2.062 1.902 1.645 1.448 0.5958 0.37037037037037 1.991 1.947 1.766 1.641 1.434 0.5528 0.407407407407407 1.892 1.849 1.763 1.587 1.433 0.5467 0.444444444444444 1.738 1.697 1.54 1.257 1.085 0.3873 0.481481481481481 1.474 1.44 1.359 1.164 1.01 0.3853 0.518518518518518 1.358 1.327 1.231 1.032 0.8926 0.3753 0.555555555555556 1.198 1.171 1.074 0.9364 0.8247 0.3354 0.592592592592593 1.07 1.046 0.9628 0.8318 0.7504 0.3205 0.62962962962963 0.6178 0.6033 0.5553 0.4598 0.3954 0.1789 0.666666666666667 0.5982 0.5846 0.5413 0.4517 0.3883 0.1765 0.703703703703704 0.577 0.5637 0.5202 0.4419 0.3861 0.1609 0.740740740740741 0.5664 0.5535 0.5072 0.4117 0.3656 0.1495 0.777777777777778 0.5215 0.5114 0.4712 0.4078 0.3525 0.1488 0.814814814814815 0.5074 0.4958 0.467 0.3956 0.3455 0.1488 0.851851851851852 0.5069 0.4949 0.4501 0.3939 0.345 0.1478 0.888888888888889 0.5052 0.4936 0.4495 0.3844 0.3366 0.1264 0.925925925925926 0.181 0.1775 0.1636 0.1368 0.12 0.06163 0.962962962962963 0.06915 0.06775 0.0623 0.05537 0.05381 0.03088 7 0.1 5.1463 5.0318 4.6485 4.0548 3.5153 1.2607 Average of yearly averages: 0.463465769230769 Inputs generated by pe4. pl  8 August 2003 Data used for this run: Output File: triazoleNCapples2006 Metfile: w03812. dvf PRZM scenario: NCappleC. txt EXAMS environment file: ir298. exv Chemical Name: triazole Description Variable Name Value Units Comments Molecular weight mwt 69.07 g/ mol Henry's Law Const. henry 1.97e 10 atm m^ 3/ mol Vapor Pressure vapr 1.65e 3 torr Solubility sol 7.0e+ 6 mg/ L Kd Kd 0.72 mg/ L Koc Koc mg/ L Photolysis half life kdp 0 days Half life Aerobic Aquatic Metabolism kbacw 214 days Halfife Anaerobic Aquatic Metabolism kbacs 504 days Halfife Aerobic Soil Metabolism asm 107 days Halfife Hydrolysis: pH 7 161 days Half life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI 0.1 cm Application Rate: TAPP 0.082 kg/ ha Application Efficiency: APPEFF 1.0 fraction Spray Drift DRFT 0.0 fraction of application rate applied to pond Application Date Date 01 05 dd/ mm or dd/ mmm or dd mm or dd mmm Interval 1 interval 7 days Set to 0 or delete line for single app. Record 17: FILTRA IPSCND 1 UPTKF Record 18: PLVKRT PLDKRT FEXTRC 0.5 Flag for Index Res. Run IR IR Flag for runoff calc. RUNOFF total none, monthly or total( average of entire run)