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HomeMy WebLinkAbout8401_CityofAlbemarle_CostEstRequestforApproval_FID1821382_20230921HODGES, HARBIN, NEWBERRY & TRIBBLE, INC. Consulting Engineers September 21, 2023 Ms. Sarah M. Moutos Environmental Program Consultant Division of Waste Management — Solid Waste Section North Carolina Department of Environmental Quality 217 West Jones Street Raleigh, NC 27603 Sarah.Moutos(ancdenr. gov Re: City of Albemarle MSW and C&D Landfills Closure / Post -Closure Costs Permit #84-01 Stanly County, North Carolina HHNT Project Nos. 1011-010-05 & 1011-011-05 Dear Ms. Moutos: On behalf of the City of Albemarle, we have enclosed the updated Closure/Post-Closure Cost Estimates for Financial Assurance for the subject facility. Please note that the Post -Closure Cost and Current Corrective Action Cost estimates for the MSW Landfill have been updated and are now in 2023 dollars. The other costs have been updated using the 2023 inflation factor of 1.069. The updated cost worksheets are attached for your reference. These costs will be used for the Government Financial Test once approved by the state. MSW Landfill Permit #84-01 C&D Landfill Permit #84-01 Other Closure Costs $4,574,635.86 $2,566,490.00 N/A Post Closure Costs $3,322,200.00 $403,637.92 N/A Current Corrective Action Cost $258,750.00 $556,301.04 N/A Potential Assessment & Corrective Action N/A N/A $2,608,361.27 Totals: $8,155,585.86 $3,526,428.96 $2,608,361.27 TOTAL ASSURED COSTS: $14,290,376.09 3920 Arkwright Road, Suite 101 • Macon, Georgia 31210 (478) 743-7175 • Fax (478) 743-1703 • www.hhnt.com SAVANNAH • ATLANTA • Macon • STATESBORO • GREENVILLE, SC Ms. Sarah M. Moutos September 21, 2023 Page 2 of 2 Should you have any questions, please call. Sincerely, HODGES, HARBIN, NEWBERRY & TRIBBLE, INC. R. Brant Lane, P.E. Professional Engineer Enclosure cc: Darren Preslar (w/ enclosure) Jacob Weavil (w/ enclosure) CITY OF ALBEMARLE MSW LANDFILL - PERMIT # 84-01 CLOSURE COSTS FOR FINANCIAL ASSURANCE UPDATED September 2023 Item Unit No. Item Qtv Unit Price Cost 1 18" of 1 x 10 -5 cm/sec soil cover 3 88,221 cy $6.90 $608,724.90 2 40 Mil LLDPE Liner and Drainage net 1,587,980 sf $0.85 $1,349,783.00 3 Erosion Control Devices 1 L.S. $75,000.00 $75,000.00 4 24" Erosion Layer 5 117,628 cy $4.05 $476,393.40 5 Seeding and Mulching 31.7 Acre $2,000.00 $63,400.00 6 Mobilization/Demobilization 1 L.S. $175,000.00 $175,000.00 7 Labor Costs 1 L.S. $200,000.00 $200,000.00 8 Stone for Methane Gas Collection 6 600 tons $25.00 $15,000.00 9 Geotextile for Methane Gas Collection 7 15,600 sf $0.20 $3,120.00 10 Vent Pipes for Methane Gas Collection 8 Each $600.00 $4,800.00 11 Engineering Costs and QA/QC of the Composite Liner and Certification of Closure 1 L.S. $400,000.00 $400,000.00 TOTAL $3,371,221.30 Current Year Inflation Previous Year's Cost Current Year's Cost 2009 1.022 $3,371,221.30 $3,445,388.17 2010 1.007 $3,445,388.17 $3,469,505.89 2011 1.011 $3,469,505.89 $3,507,670.45 2012 1.02 $3,507,670.45 $3,577,823.86 2013 1.019 $3,577,823.86 $3,645,802.51 2014 1.015 $3,645,802.51 $3,700,489.55 2015 1.014 $3,700,489.55 $3,752,296.40 2016 1.010 $3,752,296.40 $3,789,819.37 2017 1.013 $3,789,819.37 $3,839,087.02 2018 1.018 $3,839,087.02 $3,908,190.59 2019 1.022 $3,908,190.59 $3,994,170.78 2020 1.017 $3,994,170.78 $4,062,071.68 2021 1.012 $4,062,071.68 $4,110,816.54 2022 1.041 $4,110,816.54 $4,279,360.02 2023 1.069 $4,279,360.02 $4,574,635.86 TOTAL CLOSURE (2023) $4,574,635.86 Notes: 1 The largest area to be closed within the permitted life will be Phase 1, and 2 (31.7 Ac). The estimated costs shown below are only for Phase 1 & 2. Post Closure will be 30 years after closure. z All cost are pulled from Section 6.8 "Closure Costs" of the Permit to Construct Phase 2 Application, last revised July 7, 2007, prepared by Municipal Engineering Services. A math error was found in the calculation and corrected which increased the 2008 Closure Costs to $3,371,221.30. 3 88,221 cy is the sum of total yardage plus 15% ° 1,587,980 cf is the sum of total footage plus 15% 5117,628 yd3 is the sum of total yardage plus 15% 6 600 tons is based on a total estimate of 5,000 linear feet times a total estimated volume for a 2' x 1' trench (10,000) cf with a density of 120 Ibs/cf, which gives a total weight of 600 tons. 715,600 feet2 is based on the total estimated perimeter for a 2' x 1' trench (2,600 ft x 6ft)= 15,600 feet CITY OF ALBEMARLE MSW LANDFILL - PERMIT # 84-01 POST -CLOSURE CARE COSTS FOR FINANCIAL ASSURANCE September 2023 Item Unit No. Item Qty. Unit Price Cost 1. Sediment and Erosion Control Inspections, cap repairs and vegetation 1 L.S. $ 6,000.00 $ 6,000.00 2. Sediment Basin Cleanout 300 C.Y. $ 8.00 $ 2,400.00 Leachate Treatment and Analysis (Average over 30 3. years) 1 L.S. $ 24,000.00 $ 24,000.00 Leachate System Maintenance (camera and jetting 4. every 5 years) 1 L.S. $ 5,000.00 $ 5,000.00 5. Engineering Inspections and Reporting 4 Yr $ 2,000.00 $ 8,000.00 6. Mowing (Annual costs for 2 events) 31.7 Ac. $ 200.00 $ 6,340.00 Overall Site Maintenance (roads, gate, fence, 7. monitoring network) 1 L.S. $ 2,500.00 $ 2,500.00 8. Closure of leachate lagoon (1/30) L.S. $ 75,000.00 $ 2,500.00 Routine Semi -Annual Water Quality Monitoring (All Groundwater and Surface Water locations for the Active C&D/Closed MSW and Subtitle D MSW 9. LF's) Sampling 2 Each $ 6,000.00 $ 12,000.00 Lab Analysis 2 Each $ 10,000.00 $ 20,000.00 Reporting 2 Each $ 5,000.00 $ 10,000.00 Routine Quarterly Methane Monitoring (All locations for the Active C&D/Closed MSW and 10. Subtitle D MSW LF's) Sampling 4 Each $ 3,000.00 $ 12,000.00 ANNUAL POST CLOSURE COST $ 110,740.00 X 30 YEARS $ 3,322,200.00 Notes: 1. The largest closed area to be monitored within the post closure life will be Phase 1 and 2 (31.7 Ac.). The estimated costs shown are only for Phase 1 & 2. Post closure will be 30 years after closure. 2. The current corrective action costs are provided in a separate estimate. 3. All cost are in 2023 dollars. CITY OF ALBEMARLE MSW LANDFILL - PERMIT # 84-01 CURRENT CORRECTIVE ACTION COST FOR FINANCIAL ASSISTANCE UPDATED September 2023 Item Unit No. Item gtv. Unit Price Cost 1. Corrective Action / MNA Groundwater Monitoring (9 GW Wells) (Every 4 Years) Sampling 0.25 Each $ 2,000 $ 500 Lab Analysis 0.25 Each $ 7,500 $ 1,875 Reporting 0.25 Each $ 25,000 $ 6,250 Annual TOTAL $8,625 Years 30 30 Year TOTAL $258,750 Notes: 1. Does not include any routine semi-annual water quality monitoring / reporting cost, which are included in the Post -Closure Cost estimate. 2. All cost are in 2023 dollars. CITY OF ALBEMARLE MSW / C&D LANDFILL - PERMIT # 84-01 POTENTIAL ASSESSMENT AND CORRECTIVE ACTION COSTS FOR FINANCIAL ASSISTANCE UPDATED September 2023 Current Year Inflation Previous Year's Cost 2012 1.02 $2,000,000.00 2013 1.019 $2,040,000.00 2014 1.015 $2,078,760.00 2015 1.014 $2,109,941.40 2016 1.010 $2,139,480.58 2017 1.013 $2,160,875.39 2018 1.018 $2,188,966.77 2019 1.022 $2,228,368.17 2020 1.017 $2,277,392.27 2021 1.012 $2,316,107.94 2022 1.041 $2,343,901.23 2023 1.069 $2,440,001.18 TOTAL POTENTIAL ASSESSMENT AND CORRECTIVE ACTION COSTS (202 Current Year's Cost $2,040,000.00 $ 2,078, 760.00 $ 2,109, 941.40 $2,139,480.58 $ 2,160, 875.39 $2,188,966.77 $2,228,368.17 $2,277,392.27 $ 2, 316,107.94 $2,343,901.23 $2,440,001.18 $2,608,361.26 $2,608,361.26 Notes: 1 In accordance with direction from NCDEQ, the Potential Assessment and Corrective Action Costs should be updated annually for inflation since 2011. CITY OF ALBEMARLE C&D LANDFILL - PERMIT # 84-01 CLOSURE COSTS FOR FINANCIAL ASSURANCE UPDATED September 2023 Item Unit No. Item Qty Unit Price Cost 1 18" of 1 x 10 -s cm/sec cohesive soil cap a 91,839 Cy $9.00 $826,551.00 2 Erosion control devices 1 L.S. $75,000.00 $75,000.00 3 18" erosion layer 4 91,839 cy $4.00 $367,356.00 4 Seeding and mulching 33 Acre $2,000.00 $66,000.00 5 Mobilization/Demobilization 1 L.S. $175,000.00 $175,000.00 6 Labor costs 1 L.S. $200,000.00 $200,000.00 7 Stone for methane Gas collection 6 470 tons $25.00 $11,750.00 8 Geotextile for methane gas collection 6 23,478 sf $0.20 $4,695.60 9 Vent pipes for methane gas collection 11 Each $600.00 $6,600.00 10 Engineering costs and CA/QC of the composite 1 L.S. liner and certification of closure $200,000.00 $200,000.00 TOTAL $1,932,952.60 Current Year Inflation Factor Previous Year's Cost Current Year's Cost 2010 1.007 $1,932,952.60 $1,946,483.27 2011 1.011 $1,946,483.27 $1,967,894.58 2012 1.02 $1,967,894.58 $2,007,252.48 2013 1.019 $2,007,252.48 $2,045,390.27 2014 1.015 $2,045,390.27 $2,076,071.13 2015 1.014 $2,076,071.13 $2,105,136.12 2016 1.010 $2,105,136.12 $2,126,187.48 2017 1.013 $2,126,187.48 $2,153,827.92 2018 1.018 $2,153,827.92 $2,192,596.82 2019 1.022 $2,192,596.82 $2,240,833.95 2020 1.017 $2,240,833.95 $2,278,928.13 2021 1.012 $2,278,928.13 $2,306,275.27 2022 1.041 $2,306,275.27 $2,400,832.55 2023 1.069 $2,400,832.55 $2,566,490.00 TOTAL CLOSURE COST (2023) $2,566,490.00 Notes: 1 The largest area to be closed within the permitted life will be 33.0 Ac. Post Closure will be 30 years after closure. 2 All cost are pulled from Section 2.6 "Closure Costs" of the Permit Application for Continued Operation of the City of Albemarle Construction and Demolition Landfill Facility, prepared by Municipal Engineering Services. 3 91,839 cy is the sum of total yardage plus 15% 91,839 cf is the sum of total yardage plus 15% 5470 tons is based on a total estimate of 3,913 linear feet times a total estimated volume for a 2' x 1' trench (7,826 cf) with a density of 120 lb/cf, which gives a total weight of 470 tons 6 23,478 sf is based on the total estimated perimeter for a 2' x 1' trench (3,913 ft x Eft) = 23, 478 ft CITY OF ALBEMARLE C&D LANDFILL - PERMIT #84-01 POST -CLOSURE CARE COSTS FOR FINANCIAL ASSURANCE urumitU aeptemoer /U/I Item Unit No. Item Qty. Unit Price Cost 1. Cap monitoring and repairing 1 L.S $100,000.00 $100,000.00 2. Closure of sedimentation and erosion control devices 1 L.S $24,000.00 $24,000.00 3. Maintenance of gas vents, monitoring wells, etc. 1 L.S $60,000.00 $60,000.00 4. Administration/record keeping 30 L.S. $4,000.00 $120,000.00 TOTAL $304,000.00 Current Year Inflation Factor Previous Year's Cost Current Year's Cost 2010 1.007 $304,000.00 $306,128.00 2011 1.011 $306,128.00 $309,495.41 2012 1.02 $309,495.41 $315,685.32 2013 1.019 $315,685.32 $321,683.34 2014 1.015 $321,683.34 $326,508.59 2015 1.014 $326,508.59 $331,079.71 2016 1.010 $331,079.71 $334,390.50 2017 1.013 $334,390.50 $338,737.58 2018 1.018 $338,737.58 $344,834.86 2019 1.022 $344,834.86 $352,421.22 2020 1.017 $352,421.22 $358,412.39 2021 1.012 $358,412.39 $362,713.33 2022 1.041 $362,713.33 $377,584.58 2023 1.069 $377,584.58 $403,637.92 TOTAL 30 YEAR COST (2023) $403,637.92 Notes: 1 The largest closed area to be monitored within the post closure life will be 33.0 Ac. Post closure will be 30 years after closure. Z All cost are pulled from Section 3.2 "Post Closure Costs" of the Permit Application for Continued Operation of the City of Albemarle Construction and Demolition Landfill, prepared by Municipal Engineering Services. 3In accordance with direction from DENR, the groundwater, surface water and methane monitoring costs are now included in the corrective action number and therefore not included as a separate line item cost.