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HomeMy WebLinkAboutDSHW-2023-211771 - 0901a068812ba71eSection II Area Summary Removal of Waste Decontamination Transportation and Disposal of Decon Fluid Sampling and Analysis Transportation of Waste in Storage Treatment and Disposal 1Engineering Expense Certification of Closure 2Contigency Allowance Container Storage -$ 253,965$ 370,670$ 175,001$ 1,148,986$ 9,356,370$ 565,250$ 22,000$ 1,189,225$ 13,081,467$ Tank Farm 14,393$ 290,528$ 82,929$ 23,421$ 237,082$ 669,100$ 65,873$ 22,000$ 140,533$ 1,545,859$ Bulk Solids 7,741$ 125,501$ 80,882$ 33,825$ 206,283$ 1,043,000$ 74,862$ 12,600$ 158,470$ 1,743,164$ Sludge Tanks 11,113$ 64,233$ 42,063$ 5,283$ 14,820$ 225,900$ 18,171$ 9,940$ 39,153$ 430,676$ Kiln 140,351$ 537,576$ 228,928$ 232,563$ 198,059$ 463,800$ 90,064$ 21,760$ 191,311$ 2,104,412$ Totals 173,598$ 1,271,803$ 805,472$ 470,093$ 1,805,230$ 11,758,170$ 814,220$ 88,300$ 1,718,692$ 18,905,578$ 1.10959 20,977,441$ Notes 15% of subtotal of removal of waste, decontamination, transportation and disposal of decon fluid, sampling and analysis, transportation of waste in storage and treatment and disposal. 210% contingency allowance was used. Year Inflation Factor 2022 1.07 2023 1.037 2024 2025 2026 2027 2028 2029 2030 2031 2032 Area Total Activity Area Summary Inflation Determination 3Total Inflation Factor Closure Cost Adjusted for Inflation 3Total Inflation Factor is calculated as the product of all annual inflation factors displayed in the table below. This estimate is current as of:June 2024 Attachment 7 -- Closure Plan Appendix 1 -- Section II Clean Harbors Aragonite, LLC Page 1 June 2024 UTD981552177 Section III Closure Costs by Area Container Storage Area Cost Activity Summary Totals 1Decontamination 253,965$ 1Transportation and Disposal of Decon Fluid 370,670$ Sampling and Analysis 175,001$ Transportation of Waste in Storage 1,148,986$ Treatment and Disposal 9,356,370$ Entered in values Treatment and Disposal PCB Samples Required Cost Rinse Samples Required Cost Number of Containers/Gallons/Po unds5,6,7,8 Number of Trucks/Rail Cars/Flat Cars Cost 9Tons of Waste Disposal Cost for Waste E1 110 8,690$ 3 1,653$ 1048 498,848$ 2E2 110 8,690$ 2 1,102$ 1536 731,136$ E3 110 8,690$ 2 1,102$ 2930 1,394,680$ 3E4 93 7,347$ 2 1,102$ 1708 813,008$ E5 110 8,690$ 3 1,653$ 1160 552,160$ E6 110 8,690$ 2 1,102$ 2096 997,696$ E7 110 8,690$ 2 1,102$ 2792 1,328,992$ E8 330 26,070$ 4 2,204$ 2304 1,096,704$ Building 68 3 237$ 2 1,102$ 56 26,656$ Building 69 2 158$ 2 1,102$ 56 26,656$ Building 70 East/West 3 237$ 2 1,102$ 64 30,464$ Building 71 East/West 3 237$ 2 1,102$ 64 30,464$ Breezeway 65 5,135$ 3 1,653$ 256 121,856$ Shred Tower Storage Area/Conveyor 30 2,370$ 8 4,408$ 144 68,544$ Slag Pad 0 -$ 0 -$ 12 5,712$ E1 Dock 19 1,501$ 2 1,102$ 252 119,952$ E5 Dock 19 1,501$ 2 1,102$ 252 119,952$ E8 Dock 38 3,002$ 2 1,102$ 420 199,920$ Drum Pumping Storage #1 0 -$ 0 -$ 12 5,712$ Drum Pumping Storage #2 0 -$ 0 -$ 12 5,712$ Cylinder Storage Area 0 -$ 0 -$ 213 101,388$ Drum Pumping Station #1 1 79$ 2 1,102$ 4 1,904$ Drum Pumping Station #2 1 79$ 2 1,102$ 7 3,462$ Laboratory Cooler 1 79$ 2 1,102$ 2 952$ Drive Through Direct Burn Station6 5 395$ 2 1,102$ 7500 Drive Through Corrosive Direct Burn Station6 5 395$ 2 1,102$ 7500 Truck Unloading6 39 3,081$ 5 2,755$ 22920 Bulk Solids Pad7 310 24,490$ 3 1,653$ 23760 3 29,469$ 155 108,500$ ATF Magazines (1 each)8 11 869$ 4 2,204$ 90000 3 38,400$ 45 765,000$ Subtotal 1638 129,402$ 67 36,917$ 17400 226 1,148,986$ 359 9,356,370$ 5% Contingency for Sampling 1720 135,880$ 71 39,121$ Notes 1See Decon Summary and Transportation and Disposal of Decon Fluid Tables for information on how those values were calculated. 2E2 includes 4 containers for WS1, WS2, WS3. 3E4 includes 4 containers for repack and decant. 8Maximum ATF Magazines waste storage capacity is by the pound. It is assumed that 30,000 pounds of explosives can fit on one trailer. Assumed it is being destroyed at the Clean Harbors Colfax facility. 9Waste Disposal calculations for the Drive through Direct Burn Station, Drive Through Corrosive Direct Burn Station, Truck Unloading, Bulk Solids Pad, and ATF Magazines requires a conversion to tons. 10Every calculation is rounded up to its nearest whole value. 5Maximum number of containers allowed to be stored in storage area. Number of trailers calculated by assuming capacity of trailer is 80 containers. Assuming it would be destroyed at the Clean Harbors Deer Park facility. 7Containers, roll offs and tankers can be stored in this area. Used the highest amount of gallons that can be stored in this area. Assuming waste would be disposed of as bulk solids in roll-offs (12 tons each) which would be carried by flat car (6 roll-offs per flat car). Assumed it is being destroyed at the Clean Harbors Deer Park facility. 6Tankers and containers are stored in these areas. Used the highest amount of gallons that can be stored in that area. Assuming it would be disposed of as bulk liquid in a rail car. A rail car can hold 20,000 gallons. Assumed it is being destroyed at the Clean Harbors Deer Park facility. Activity 2 14,820$ 159 200,340$ Container Storage Area Transportation of Waste in Storage4Sampling and Analysis 218 1,066,297$ 4PCB wipes will only be used to determine PCB decontamination and rinse water samples to verify RCRA decontamination. No PCB samples needed for cylinder storage area since no PCBS would have been stored there. There are no PCB samples for the Slag Pad and Drum Pumping areas since this is portable containment. Added a 5% contingency to sample amounts to account for cost of potential samples at other areas of the facility or resampling. Attachment 7 -- Closure Plan Appendix 1 -- Section III Clean Harbors Aragonite, LLC Page 1 June 2024 UTD981552177 Tank Farm Activity Summary Totals Removal of Waste 14,393$ 1Decontamination 290,528$ 1Transportation and Disposal of Decon Fluid 82,929$ Sampling and Analysis 23,421$ Transportation of Waste in Storage 237,082$ Treatment and Disposal 669,100$ Entered in values 2Capacity Mandays to Remove Cost of Manpower Equipment Cost 4PCB Samples Required Cost 5Rinse Samples Required Cost 6Number of Containers Number of Trucks Cost 9Number of Rail Cars for Bulk Liquid Waste Cost Number of Tanks 8Tank Scrap (Tons) Number of Roll off Boxes Cost 7Tank Farm 599956 26 7,696$ 6,697$ 142 11,218$ 20 11,020$ 34 1 4,892$ 30 222,300$ 16 160 14 9,890$ Subtotal 599956 26 7,696$ 6,697$ 142 11,218$ 20 11,020$ 34 1 4,892$ 30 222,300$ 16 160 14 9,890$ 5% Contingency for Sampling 150 11,850$ 21 11,571$ 9Treatment and Disposal 10Tank Farm Capacity (Gals)Tons Cost Aqueous Waste 149,182 623 311,500$ High BTU Waste 450,774 1880 338,400$ Scrap Metal -160 19,200$ 669,100$ Notes 1See Decon Summary and Transportation and Disposal of Decon Fluid Tables for information on how those values were calculated. 2Tanks and piping will be emptied, flushed, then rinsed prior to dismantling. Tanks and piping will then be cut up for disposal as RCRA waste. Volume of waste based on tank volumes and pipe system lineal footage. 3PCB wipes will only be used to determine PCB decontamination and rinse water samples to verify RCRA decontamination. Added a 5% contingency to sample amounts to account for cost of potential samples at other areas of the facility or resampling. 4The tank farm is comprised of four identical containment areas, and two pump houses. These unit containment areas will be sampled individually: 25 per containment area, 10 per pump house, 10 miscellaneous structural steel, 12 miscellaneous piping, strainer, pump samples. 5The tank farm is comprised of four identical containment areas, and two pump houses. These unit containment areas will be sampled individually: 4 per containment area and 2 per pump house. 6It is expected that approximately 34 drums of waste from the tank farm will be removed. A trailer can transport 80 containers so this could fit on one trailer. 730% added to tank farm capacity to account for flush to remove PCBs. 3 flushes of 10% by volume assumed. 9Bulk liquids from the tank farm would be transported via rail to Clean Harbors Deer Park for Disposal. It is assumed that a rail car capacity would be 20,000 gallons. 10Aqueous Waste Tank capacity is 114,755 gallons and High BTU Waste is 346,749 gallons. 30% added to account for flush amounts. 11Every calculation is rounded up to its nearest whole value. 8Assumed tanks would consist of 10,000 lbs. of metal scrap. Also assumed that scrap from pipe, pumps and strainers would equal the amount of the tank (10,000 lbs.) so the amount was doubled. Scrap metal will be disposed of by roll-off (12 tons per roll off) at Clean Harbors Grassy Mountain. Subtotal Tank Farm Area 3Sampling and AnalysisRemoval of Waste Activity Transportation of Waste in Storage Attachment 7 -- Closure Plan Appendix 1 -- Section III Clean Harbors Aragonite, LLC Page 2 June 2024 UTD981552177 Bulk Solids Activity Summary Totals Removal of Waste 7,741$ 1Decontamination 125,501$ 1Transportation and Disposal of Decon Fluid 80,882$ Sampling and Analysis 33,825$ Transportation of Waste in Storage 206,283$ Treatment and Disposal 1,043,000$ Entered in values 2Capacity Mandays to Remove Cost of Manpower Equipment Cost PCB Samples Required Cost Rinse Samples Required Cost Concrete Samples required Cost Amount (Tons) Number of Roll-Offs Number of Flat Cars Cost Amount of Waste (Tons) Cost Bulk Solids Tanks 229,000 20 5,920$ 1,821$ 65 5,135$ 7 3,857$ 100 22,300$ 1490 125 21 206,283$ 1,490 1,043,000$ Subtotal 229000 20 5,920$ 1,821$ 65 5,135$ 8 3,857$ 100 22,300$ 1490 125 21 206,283$ 1,490 1,043,000$ 5% Contingency for Sampling 69 5,451$ 9 4,959$ 105 23,415$ Notes 1See Decon Summary and Transportation and Disposal of Decon Fluid Tables for information on how those values were calculated. 2Volumes of wase in inventory based on permitted bulk tank capacity of 229,000 gallons. 3PCB wipes will only be used to determine PCB decontamination and rinse water samples to verify RCRA decontamination. Added a 5% contingency to sample amounts to account for cost of potential samples at other areas of the facility or resampling. 7Every calculation is rounded up to its nearest whole value. 6Waste removed from the tanks would be placed in roll-offs (12 tons each) which would be shipped by flat car (6 roll-offs per flat car). Assumed it is being destroyed at the Clean Harbors Deer Park facility. 415 PCB samples per tank (4 tanks) and 5 PCB samples from containment/vault, 1 rinse sample per tank and 3 rinse samples from the containment/vault, and 20 concrete samples per wall and concrete 20 samples from various floor surfaces. 5Waste from bulks solids tanks will be transferred to roll-offs which will then be transported to Clean Harbors Deer Park by rail flat car for disposal. Activity Treatment and Disposal Bulk Solids Tanks Removal of Waste 5,6Transportation of Waste in Storage3,4Sampling and Analysis Attachment 7 -- Closure Plan Appendix 1 -- Section III Clean Harbors Aragonite, LLC Page 3 June 2024 UTD981552177 Sludge Tanks Activity Summary Totals Removal of Waste 11,113$ 1Decontamination 64,233$ 1Transportation and Disposal of Decon Fluid 42,063$ Sampling and Analysis 5,283$ Transportation of Waste in Storage 14,820$ Treatment and Disposal 225,900$ Entered in values 2Capacity Mandays to Remove Cost of Manpower Equipment Cost PCB Samples Required Cost Rinse Samples Required Cost Amount (Gallons) Number or Rail Cars for Bulk Sludge Waste Cost 6Amount of Waste (Tons) Cost Sludge Tanks 38570 30 8,880$ 2,233$ 30 2,370$ 4 2,204$ 38570 2 14,820$ 251 225,900$ Subtotal 38570 30 8,880$ 2,233$ 30 2,370$ 4 2,204$ 38570 2 14,820$ 251 225,900$ 5% Contingency for Sampling 32 2,528$ 5 2,755$ Notes 1See Decon Summary and Transportation and Disposal of Decon Fluid Tables for information on how those values were calculated. 2Volumes of waste in inventory based on permitted sludge tank system capacity of 38,570 gallons. 4PCB Samples: 5 on tanks, 20 on containment vault, 5 on ancillary equipment. Rinse Samples: 2 from tank system and 2 from vault area . 5Sludge from the sludge tanks would be transported via rail to Clean Harbors Deer Park for disposal. It is assumed that a rail car capacity would be 20,000 gallons. 6Used bulk solids density to be conservative. 7Every calculation is rounded up to its nearest whole value. 3PCB wipes will only be used to determine PCB decontamination and rinse water samples to verify RCRA decontamination. Added a 5% contingency to sample amounts to account for cost of potential samples at other areas of the facility or resampling. Sludge Tanks Area Activity Removal of Waste 3,4Sampling and Analysis 5Transportation of Waste in Storage Treatment and Disposal Attachment 7 -- Closure Plan Appendix 1 -- Section III Clean Harbors Aragonite, LLC Page 4 June 2024 UTD981552177 Kiln Activity Summary Totals Removal of Waste 140,351$ 1Decontamination 537,576$ 1Transportation and Disposal of Decon Fluid 228,928$ Sampling and Analysis 232,563$ Transportation of Waste in Storage 198,059$ Treatment and Disposal 463,800$ Entered in values Transportation of Waste in Storage Amount of Waste (gallons and tons) Mandays to Remove Cost of Manpower Equipment Cost Number of Rail Cars or Roll Offs Number of Flat Cars Cost Amount of Waste (Tons)Cost 2Scrubber Liquid 56,000 30 8,880$ 1,904$ 3 -22,230$ 234 117,000$ 3Slag 2,016 168 0 118,676$ 2,016 241,920$ 3Bricks 324 27 0 19,073$ 324 38,880$ 3Baghouse and spray drier 108 9 0 6,358$ 108 12,960$ 4Shred Tower Clean Out 12 1 1 9,823$ 12 8,400$ Ash 372 31 0 21,899$ 372 44,640$ Subtotal -332 98,272$ 42,079$ 239 1 198,059$ 3,066 463,800$ PCB Samples Required Cost Rinse Samples Required Cost Non-aqueous Samples (Concrete Cores and Brick Samples) Cost Kiln and Afterburner feed skids, slag discharge, "A" Damper 4 316$ 8 4,408$ 0 -$ 8 Kiln Area Units 208 16,432$ 16 8,816$ 0 -$ 6 Kiln Area Containments 126 9,954$ 13 7,163$ 0 -$ Random Structural Wipes in Kiln Area 41 3,239$ 0 -$ 0 -$ Random Structural Wipes in Shred Tower Area 134 10,586$ 0 -$ 0 -$ Two Komar Shredders 7 553$ 4 2,204$ 0 -$ Shred Tower Airlock 3 237$ 2 1,102$ 0 -$ Shred Tower Feed Augur 7 553$ 2 1,102$ 0 -$ Bricks from kiln and "A" Damper 0 -$ 0 -$ 200 44,600$ Bricks from SCC 0 -$ 0 -$ 150 33,450$ Deslagger 19 1,501$ 2 1,102$ 20 4,460$ 5 Pant Leg Sections 74 5,846$ 10 5,510$ 100 22,300$ Spray Dryer 45 3,555$ 2 1,102$ 80 17,840$ Accumulation Areas 0 -$ 0 -$ 20 4,460$ Parking Lot 0 -$ 0 -$ 20 4,460$ Kiln Area 0 -$ 0 -$ 10 2,230$ Shred Tower Area 0 -$ 0 -$ 10 2,230$ Subtotal 668 52,772$ 59 32,509$ 610 136,030$ 5% Contingency for Sampling 702 55,458$ 62 34,162$ 641 142,943$ Notes 1See Decon Summary and Transportation and Disposal of Decon Fluid Tables for information on how those values were calculated. 6Every calculation is rounded up to its nearest whole value. 5PCB wipes will only be used to determine PCB decontamination and rinse water samples to verify RCRA decontamination. Added a 5% contingency to sample amounts to account for cost of potential samples at other areas of the facility or resampling. 3Non-liquid wastes excluding shred tower: 168 boxes of slag 20 yd3 each, 27 boxes of brick 20 yd3 each, 31 boxes of ash at 20 yd3 each, and 9 boxes of baghouse/spray dryer cleanout at 20 yd3 each . These will be disposed of at Clean Harbors Grassy Mountain. 41 box from shred tower cleanout 20 yd3. This will be transported by rail and be disposed of at Clean Harbors Deer Park. Activity Type of Material Removal of Waste Treatment and Disposal 302 89,392$ 40,175$ Kiln area 5Sampling and Analysis Activity 2Scrubber has 4 tanks at 14,000 gallons each. Amount is in gallons. This will be transported by rail to Clean Harbors Deer Park for Disposal. Considered it to be bulk aqueous waste. Attachment 7 -- Closure Plan Appendix 1 -- Section III Clean Harbors Aragonite, LLC Page 5 June 2024 UTD981552177 Section IV Transportation and Disposal of Decontamination Fluid Transportation and Disposal of Decontamination Fluid Entered in values Area 1Total Area (ft2) 2Gal of Decon 3Number of Rail Cars Transportation Cost 4Cost of Disposal 5Number of Frac Tanks Number of Months Frac Tank Rental Cost Total Number of Man Days to Pump to Frac Tank Cost of Equipment Cost to Pump Fluid to Frac Tanks Total Container Storage 143,471 143471 8 59,280$ 299,138$ 4 2 8,680$ 11 316$ 3,572$ 370,670$ 6Tank Farm 18900 28900 2 14,820$ 60,257$ 3 2 6,510$ 4 158$ 1,342$ 82,929$ Bulk Solids -30,000 2 14,820$ 62,550$ 2 1 2,170$ 4 158$ 1,342$ 80,882$ Sludge Tanks -16000 1 7,410$ 33,360$ 1 0.5 543$ 2 158$ 750$ 42,063$ Kiln -87148 5 37,050$ 181,704$ 4 2 8,680$ 4 310$ 1,494$ 228,928$ Notes 1Rinsate generation is expected to be approximately 1.0 gallon per square foot of unit surface area. 2Rinsate generation is assumed rather then being calculated from surface area. 3Transported by rail car to Clean Harbors Deer Park for Disposal. 4Asssumed the cost would be similar to bulk aqueous waste disposal at Clean Harbors Deer Park. 5Frac tanks will be used to temporarily store the liquids generated during decontamination efforts. 6Tank farm includes an extra 10,000 gallons of rinse water. 7Every calculation is rounded up to its nearest whole value. Attachment 7 -- Closure Plan Appendix 1 -- Section IV Clean Harbors Aragonite, LLC Page 1 June 2024 UTD981552177 Section V Decontamination Costs Decontamination Cost Summary Item Description Item Quantity Rate Extension Labor 1287 296$ 380,952$ Equipment and Supplies --530,107$ Project Overhead --241,036$ Mobilization 1 44,357$ 44,357$ Demobilization 1 14,786$ 14,786$ Subtotal 1,211,238$ Contingency 5%60,562$ 1,271,800$ 1Decontamination Cost Per Area Area Ratio Cost Container Storage 20%253,965$ Tank Farm 23%290,528$ Bulk Solids 10%125,501$ Sludge Tanks 5%64,233$ Kiln 42%537,576$ 1,271,803$ Notes 2Every calculation is rounded up to its nearest whole value. Total 1Decontamination cost per area is calculated by multiplying the overall total decontamination cost by the ratio of mandays for this task. Attachment 7 -- Closure Plan Appendix 1 -- Section V Clean Harbors Aragonite, LLC Page 1 June 2024 UTD981552177 Decon Task Duration Decontamination Task Duration Summary Area Mandays Ratio Container Storage 257 20% Tank Farm 294 23% Bulk Solids 127 10% Sludge Tanks 65 5% Kiln 544 42% Total 1287 Container Storage Entered in values Area Sub Area Task Description Mandays/Tasks Dismantle drum storage racks 12 Wash ceilings (concrete)34 Wash walls (concrete)44 Wash front loadings bays 13 Wash interior storage cells/secondary containment 33 Sample 12 Remove area equipment 4 Wash ceilings 8 Wash walls 12 Wash floor 8 Decon/Dismantle Drum Pump Stations 2 Dismantle, wash decant area 12 Sample 4 Remove elevator/rollers 10 Lower level hoist decontamination 8 Sump cleanout 2 Dock wash 12 Breezeway wash 6 Electrical isolation of conveyors 1 Ceiling wash 6 Miscellaneous demolition 3 Sample 2 Dismantle drum storage racks 2 Containment bin cleanout 2 Wash concrete under storage rack locations 1 Sample 1 Wash ceilings 1 Wash walls 1 Sample 1 257 Container Storage Drum Storage Buildings and Buildings 68, 69, 70-East/West, 71- East/West Container Processing Area Dock/Breezeway Shred Tower Storage Area ATF Explosive Magazine Storage Total Attachment 7 -- Closure Plan Appendix 1 -- Section V Clean Harbors Aragonite, LLC Page 2 June 2024 UTD981552177 Tank Farm Area Sub Area Task Description Mandays/Tasks Sample Station Wash structure 3 Triple rinse pumps, piping 3 Isolate, pull pumps 4 Isolate, pull piping 6 Clean containment 4 Sample 2 Triple rinse tanks, piping 6 Isolate piping 3 Pull piping 2 Purge Tanks 8 Muck out interior 40 Remove exterior structural 20 Remove tanks 8 Cut-up tanks for disposal 45 Clean containment 9 Triple rinse pumps, piping 4 Isolate, pull pumps 10 Isolate, pull piping 12 Clean containment 10 Sample 2 Triple rinse tanks, piping 3 Isolate, purge 5 Isolate, remove pumps 2 Remove piping 3 Muck out interior 8 Remove mixers (sectioned)4 Top valves and piping 2 Remove exterior structural 6 Pull tanks 4 Cut-up tanks for disposal 10 Remove unload rack piping 2 Containment 3 Purge, pull O/H lines to incin feed rack 7 Remove packing for disposal 6 Remove tanks, piping for disposal 8 Sample 2 Purge piping, pull 4 Clean containment 4 Pull unloading pipes 2 Pull pumps 2 Wash bay 4 Sample 2 Unload Building Waste Tanks Pump Houses (2) Carbon Adsorber Direct Burn Area Blend Tanks Tank Farm Attachment 7 -- Closure Plan Appendix 1 -- Section V Clean Harbors Aragonite, LLC Page 3 June 2024 UTD981552177 294 Bulk Solids Area Sub Area Task Description Mandays/Tasks rinse down ceiling, upper walls 10 Clean walls 28 Clean tanks 35 Sample 8 Clean hopper, shelf 8 disassemble, clean shredder 8 sample 2 Disassemble conveyor 6 Clean conveyor interior 6 Clean hopper, knife gates 6 Sample 2 Clean hpu mains 2 Pull small lines 2 Drain hpus, isolate 2 Isolate electrical 2 127 Sludge Tanks Area Sub Area Task Description Mandays/Tasks Triple rinse 2 Muck out interior 6 Remove valves and piping 2 Wash tank exteriors 4 Pull tank 4 Cut-up tank 6 Sample 2 Triple rinse 3 Muck out interior 6 Wash Interior 6 Remove valves and piping 4 Wash tank exteriors 4 Pull tank 4 Cut-up tank 10 Sample 2 65 Kiln Area Sub Area Task Description Mandays/Tasks Pull out 2 Isolate, disconnect 4 Open housing, pull headgear 4 Pull head pulley 4 Sludge Tanks Sludge Tank - Small Sludge Tank - Large Bulk Solids Bulk Solids Building Shredder Area Drag Conveyor Total Total Total Incineration Train Deslagger Attachment 7 -- Closure Plan Appendix 1 -- Section V Clean Harbors Aragonite, LLC Page 4 June 2024 UTD981552177 Pull belt, dispose 3 Cut-up shell for disposal 20 Gross area decontamination 4 Surrounding sump area decontamination 4 Sample 2 Clean exterior kiln drive 2 Clean ring gear 2 Clean from discharge to deslagger 2 Remove piping 16 Pull Kiln face feed points 6 Remove brick, containerize 35 Clean interior 8 sample 2 Clean area exterior 2 Remove feed piping 6 Remove burners 15 Remove SCC exterior sheathing 20 Push in SCC brick 35 Muck out brick into rolloffs 20 Clean structure 8 Sample 2 Isolate, purge 2 Pull, cut piping 10 Cut refractory to release joints 8 Crane out ducts, including thermal vent 4 Remove duct refractory 20 Wash duct to scrap 4 Sample 4 Pull packing, containerize 2 Pump solids, muck out bottom 4 Scaffold interior 4 Sample 2 Pull packing, muck out bottom 8 Scaffold interior 4 Clean interior 10 Sample 2 Remove residue 6 Isolate, remove, piping 6 Remove, clean ducting 10 Clean discharge area 4 Sample 2 Clean inlet, outlet duct 6 Remove bags, cages 8 Clean/remove screw conveyors 12 Clean interior 10 Sample 2 Spray Dryer Baghouse SCC Incineration Train Deslagger Kiln Exterior Kiln Interior Kiln Feed Piping Ducting from SCC to Saturator Saturator Scrubber Attachment 7 -- Closure Plan Appendix 1 -- Section V Clean Harbors Aragonite, LLC Page 5 June 2024 UTD981552177 Clean conveyors 8 Clean loadout hoppers 4 Clean building structure 6 Clean containment 6 Sample 2 Clean inlet, discharge ducting 4 Clean interior 6 Sample 2 Clean ID #1 fan inlet 2 Clean transition to ID fan #2 2 Clean fan #2. outlet to stack 2 Clean bottom section of stack 2 Check condition of interior 1 De-erect 2 Clean interior 2 Sample 1 Isolate, drain 2 Clean, rinse 4 Remove piping, pumps 2 Remove elevator towers 10 Hoist decontamination 8 Wash structure 3 Sump cleanout 2 Electrical isolation of conveyors 2 Sample 2 Clean concrete pad 8 Miscellaneous demolition 3 Purge piping and pull 4 Wash airlock structure 8 Disassemble, clean shredder, upper 8 Disassemble, clean shredder, lower 8 Dissemble conveyor 6 Clean isolation gates 6 Sample 4 Clean hpu mains 2 Pull small lines 2 Drain hpus, isolate 2 Isolate electrical 2 Dismantle, wash feed auger 12 544 pH Adjustment Tanks Baghouse Residue Loadout Building ID Fans, Stack Inlet Ducting Stack Total ESP Incineration Train Shred Tower Area Attachment 7 -- Closure Plan Appendix 1 -- Section V Clean Harbors Aragonite, LLC Page 6 June 2024 UTD981552177 Decontamination Equipment and Supplies Entered in values Unit Unit Qty Item Description Item Qty Rate Extension Week 21 Pressure Washers w/Trailers 5 563.00$ 59,115.00$ Week 21 Sand Blasting 2 622.00$ 26,124.00$ Week 21 High Reach Fork Lift 1 1,361.00$ 28,581.00$ Week 21 Fork Lifts (5,000 lbs.)2 326.00$ 13,692.00$ Week 21 Shooting Boom Lift 1 1,590.00$ 33,390.00$ Month 3 Vactor Truck (up to 176 hrs./mo)1 11,829.00$ 35,487.00$ Week 12 Vacuum Boxes 2 554.00$ 13,296.00$ Hour 220 50-Ton Crane w/operator 1 89.00$ 19,580.00$ Hour 220 100-Ton Crane w/operator 1 133.00$ 29,260.00$ Week 20 Welding/Cutting and Supplies 2 260.00$ 10,400.00$ Week 20 Trailers for Transporting 1 89.00$ 1,780.00$ Week 21 Storage Trailers for Equipment on-site 2 82.00$ 3,444.00$ Month 4 Hydroblaster, 30,000 psi 1 14,786.00$ 59,144.00$ LS 1 Mob, Demob, Permits and Misc. Expenses 1 2,957.00$ 2,957.00$ Week 21 Air Compressors 2 451.00$ 18,942.00$ Week 21 Trucks 2 408.00$ 17,136.00$ Week 12 Koppus Blowers 2 89.00$ 2,136.00$ Week 21 Scaffolding 1 222.00$ 4,662.00$ Manday 1 PPE 1,833 30.00$ 54,990.00$ Drums 25 Drums of Detergent 1 740.00$ 18,500.00$ Week 20 Small Tools 1 296.00$ 5,920.00$ Week 21 Sampling Supplies 1 185.00$ 3,885.00$ Bag 1 Bag Grit for Sand Blasting 710 12.00$ 8,520.00$ Roll 1 Absorbent Mats 54 163.00$ 8,802.00$ Roll 1 Plastic 264 89.00$ 23,496.00$ Case 1 Duct Tape 30 185.00$ 5,550.00$ Each 1 Drums 330 44.00$ 14,520.00$ Roll 1 Drum Liner 66 103.00$ 6,798.00$ 530,107.00$ Notes 1Every calculation is rounded up to its nearest whole value. General Equipment Supplies Total Attachment 7 -- Closure Plan Appendix 1 -- Section V Clean Harbors Aragonite, LLC Page 7 June 2024 UTD981552177 Decontamination Project Administration Entered in values Unit Unit Qty Item Description Item Qty Rate Extension Hourly 700 Project Manager 1 96.00$ 67,200.00$ Hourly 900 Field Supervisor 1 48.00$ 43,200.00$ Hourly 900 Quality Assurance Officer 1 44.00$ 39,600.00$ Hourly 500 Clerical 1 23.00$ 11,500.00$ Month 6 Project Office 1 1,183.00$ 7,098.00$ Month 6 Fax Copier 1 370.00$ 2,220.00$ Month 6 Phone 1 296.00$ 1,776.00$ Week 18 Postage 1 44.00$ 792.00$ Month 6 Utilities 2 148.00$ 1,776.00$ Month 6 Supplies 1 370.00$ 2,220.00$ Month 6 Cleaning and Disposal 1 370.00$ 2,220.00$ Day 80 PPE for Administrative Personnel 2 30.00$ 4,800.00$ Week 18 Administrative Truck 1 333.00$ 5,994.00$ Each 1 Travel 20 740.00$ 14,800.00$ Day 80 Subsistence 4 112.00$ 35,840.00$ 241,036.00$ Notes 1Every calculation is rounded up to its nearest whole value. Administrative Equipment/Supplies Incidental Costs Project Management Personnel Total Attachment 7 -- Closure Plan Appendix 1 -- Section V Clean Harbors Aragonite, LLC Page 8 June 2024 UTD981552177 Section VI Certification of Closure Certification of Closure Entered in values Area Engineering Certification hours Engineer Cost Certification Direct Cost Total Container Storage 100 18,500.00$ 3,500.00$ 22,000.00$ Tank Farm 100 18,500.00$ 3,500.00$ 22,000.00$ Bulk Solids 60 11,100.00$ 1,500.00$ 12,600.00$ Sludge Tanks 24 4,440.00$ 5,500.00$ 9,940.00$ Kiln 96 17,760.00$ 4,000.00$ 21,760.00$ Notes 1Every calculation is rounded up to its nearest whole value. Attachment 7 -- Closure Plan Appendix 1 -- Section VI Clean Harbors Aragonite, LLC Page 1 June 2024 UTD981552177 Section VII General Costs and Conversion Factor Information General Costs and Conversion Factors Information Item Cost Per Unit Source and Comments PCB Wipe Sample 79.00$ Sample American West 1/3/2022 prices Rinsate Samples 551.00$ Sample American West 1/3/2022 prices Drum Truck 4,891.27$ per load Quote from Clean Harbors Logistics Explosive Truck 12,800.00$ per load Quote from CH-Colfax Disposal Rate for Containerized Waste 476.00$ a container Quote from CH (TSCA waste) Disposal Rate for Explosives 8.50$ pound Quote from CH-Colfax Frac Tank 1,085.00$ month https://emcooilfield.com/frac-tank-rental/ ($35 a day, 31 day month) Engineer Certification 185.00$ hour Updated to 2022 wages using inflation factor Cost of Man Power 37.00$ hour Updated to 2022 wages using inflation factor Rail Tanker (Liquid) Transportation to CH-DE 7,410.00$ a tanker car Quote from Union Pacific Rolloff Box to Grassy 706.40$ a load Quote from CH-GM Scrap Metal Waste 120.00$ a ton Quote from CH-GM ($0.06 per pound) Direct Burn Disposal Cost 1,260.00$ a ton Quote from CH ($0.63 per pound) Bulk Aqueous Disposal Cost 500.00$ a ton Quote from CH ($0.25 per pound) Bulk High BTU Disposal Cost 180.00$ a ton Quote from CH ($0.09 per pound) Non-Aqueous Samples 223.00$ Sample American West 1/3/2022 prices Rail Bulk Solids Transportation to CH-DE 9,823.00$ per rail flat car Quote from Union Pacific Bulk Solids Disposal 700.00$ per ton Quote from CH ($0.35 per pound) Sludge Disposal 900.00$ per ton Quote from CH ($0.45 per pound) Solid Residue Disposal 120.00$ a ton Quote from CH-GM ($0.06 per pound) Direct Labor Cost 296.00$ Manday/task $37/hr. for an 8 hour day Item Cost Per Unit Source and Comments (if needed) Drums per truck 80 drums Explosives per truck 30,000 pounds Rinsate 1 gal/ft2 Frac Tank 20,000 gallons/Frac Tank Drum 55 gallons Specific Gravity of Bulk Solids 1.56 specific gravity From 2021 facility data on bulk solids. Also used as density of containerized waste Specific Gravity of Bulk Liquids 1.00 specific gravity From 2021 facility data on bulk liquids Density of water 8.34 lbs./gal Work hours a day 8 hours/day Tank scrap per tank 10 tons Includes 10,000 pounds for the tank and 10,000 pounds for the associated piping, pumps, and strainers lbs. to tons 2000 pounds per ton Rail Tanker Capacity 20000 gal/rail tanker Flat Car Size Capacity 6 roll-offs/flat car 20 yd3 Roll-off Capacity 12 tons/roll-off Average net weight of a roll-off filled with slag Attachment 7 -- Closure Plan Appendix 1 -- Section VII Clean Harbors Aragonite, LLC Page 1 June 2024 UTD981552177