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HomeMy WebLinkAboutR2026-145 Fully ExecutedBOARD OF COUNTY COMMISSIONERS COUNTY OF KITTITAS COUNTY STATE OF WASHINGTON RESOLUTION Resolution Authorizing Reimbursement from the Ryegrass Balefill Post-Closure Reserve for Documented Post-Closure Costs WHEREAS: The Kittitas County Board of Commissioners is responsible for managing the countywide Solid Waste System under chapter 704.205 RCW, chapter 36.58 RCW, and the Joint Solid Waste Disposal System Agreement of March 12, 1979; and WHEREAS: The Ryegrass Balefill Landfill is a closed municipal solid waste landfill subject to continuing post-closure monitoring, maintenance, reporting, and financialassurance requirements under chapter 173-351WAC and Agreed Order No. DE98-SW-C168; and WHEREAS: RCW 70A.205.165 requires financial assurance adequate to cover landfill closure costs, including post-closure monitoring, pollution prevention measures, and other procedures required by state and federal regulations; and WHEREAS: WAC 173-351-600 requires continuous financial assurance for the costs of post-closure care and permits a municipal corporation to maintain that assurance through cash and investments accumulated in a reserve fund restricted for post-closure care; and WHEREAS: Kittitas County has maintained funds restricted for Ryegrass Balefill Landfill post-closure obligations while also paying eligible post-closure monitoring, reporting, testing, financial assurance support, and related compliance costs from Solid Waste operating revenues; and WHEREAS: Parametrix completed a cost allocation review dated August 12,2026, which identified $387,209.89 in supportable Ryegrass Balefill Landfill post-closure costs paid by the County based on records reviewed to date; an WHEREAS: The Board finds that reimbursing the Solid Waste operating fund for those documented expenditures is an appropriate use of the Ryegrass Balefill post-closure reserve, provided that the reimbursement is limited to eligible post-closure costs and that the remaining financial assurance continues to satisfy applicable law, the approved post-closure plan, and permit requirements; NOW THEREFORE BE lT RESOLVED: The Board of County Commissioners authorizes reimbursement to the appropriate Solid Waste operating fund from funds designated for Ryegrass Balefill Landfill post- closure care, as documented in the Parametrix memorandum dated August 12,2026. BE lT FURTHER RESOLVED: The Solid Waste Director is authorized to take the necessary administrative and accounting actions to carry out this resolution in accordance with applicable County requirements. Dated this €0", of septembe r,2026 BOARD OF COUNry COMMISSIONERS KITTITAS Brett , Chairman Laura Chairman NT tsstoner APPROVED AS TO FORM:ATTEST: ,Btlerk of the Board- Julie Kjorsvik L Deputy Clerk of the Board- Mandy Buchholz Deputy Prosecuting Attorney ParametriX Memorandum DATE: TO: FROM: SUBJECT: PROJECT NUMBER: PROJECT NAME: let'.s creale aOmcror!', tng*lJ:*r August 12,2026 Patti Stacy & Jesse Cox Tiffany Neier, PE Parametrix Cost Allocation Method for Ryegrass Balefill Closed Landfill 553-1763-011 Kittitas County Solid Waste On-call Introduction Kittitas County Solid Waste (County) requested a cost allocation review to estimate the portion of recent Ryegrass Facility (Facility) costs attributable to the closed Ryegrass Balefill Landfill (Balefill Landfill). The purpose of this review is to support County documentation of Balefill Landfill post- closure costs. The Facility includes the closed Balefill Landfill and the active Ryegrass Limited Purpose Landfill (LPL). Environmental monitoring and reporting are completed through a combined Facility program, but the regulatory requirements and monitoring activities differ by landfill unit. The Balefill Landfill is monitored under Chapter L73-351-Washington Administrative Code (WAC) and Agreed Order (AO) DE98-SW-C168. The LPL is monitored under Chapter 173-350 WAC and Kittitas County Public Health Department permit number LPL-05 (Parametrix 2026). This review includes Parametrix labor, Parametrix direct expenses, and County-provided cost information for historical HWA GeoSciences (HWA)and Onsite Environmental services. Parametrix direct expenses include mileage, travel, field equipment, shipping, and similar non-labor costs billed through Parametrix. HWA and Onsite Environmental costs were paid directly by the County and are shown separately from Parametrix invoice costs. The allocation method and supportable Balefill Landfill cost identified to date are summarized in this memorandum. Cost allocation summary tables are provided in Appendix A. The detailed monitoring- location basis and allocation calculations are provided in Appendix B. Costs Reviewed Costs were grouped by work type before allocation. This review includes: r Parametrix labor billed to the County for environmental monitoring, reporting, financial assurance, and related Facility support. I Parametrix direct expenses billed through Parametrix invoices, such as mileage, travel, field equipment, shipping, and similar non-labor expenses. I County-direct historical HWA costs provided by the County for groundwater, leachate, and related environmental mon itoring services. r County-direct Onsite Environmental costs provided by the County for testing services. County labor, County equipment, internal Countyfield support, maintenance costs, and other County- side costs are not included unless specifically identified in the County-provided cost information. 7A9 2ndAvenue,suite 200 . seattle,wA98104 | 206.394.3700 | Parametrix.com ItarametriX August 12,2026 Page 2 Allocation Basis Costs were assigned directly when the available information identified a specific landfill unit or work item. Costs associated with combined Facility monitoring, reporting, or support activities were allocated using the methods summarized below and detailed in Appendix B. Cost summary tables are provided in Appendix A. Fieldwork Fieldwork costs included Parametrix field labor, Parametrix direct field expenses, and County-direct HWA field costs. Fieldwork was allocated based on the monitoring activities expected in each quarter, including groundwater monitoring, leachate monitoring, perimeter LFG monitoring, and Balefill Landfill gas vent monitoring. Where field costs were provided as one total rather than by quarter, the average annual fieldwork allocation was used. The average annual fieldwork allocation is based on the quarterly fieldwork allocation method detailed in Appendix B. Reporting Reporting costs were allocated separately from fieldwork because report preparation is not driven only by field effort or the number of monitoring locations. Reporting also includes data review, tables, figures, compliance discussion, statistical evaluation, groundwater trend review, LFG summaries, leachate summaries, and coordination. Quarterly reporting allocations were used for Ql through Q3 monitoring reports. Year-end reporting effort was allocated using the annual environmental monitoring report allocation because the annual report serves as the primary year-end reporting document and includes both landfill units. Othet Mixed Work Other mixed work included shared groundwater network support, shared financial assurance support, combined LFG planning and support, and work that was clearly specific to one landfill unit. These costs were allocated based on the assignment rules and allocation methods detailed in Appendix B. Costs that were clearly LPl-specific, unrelated to the Balefill Landfill, or not sufficiently supported for allocation were not counted toward the Balefill Landfill total. Balefill Landfill Post-Glosure Work Items The following work items were treated as Balefill Landfill post-closure activities when identified in invoices, progress letters, or County-provided cost information: : Balefill Landfill groundwater monitoring, data review, and compliance evaluation. I Balefill Landfill leachate sampling, leachate flow review, and leachate reporting. r Balefill Landfill perimeter LFG monitoring. r Balefill Landfill gas vent monitoring and stabilization evaluation. r Balefill Landfill cover system inspections, maintenance, erosion repair, settlement review, vegetation management, access improvements, or related post-closure cover system support. r Balefill Landfill annual and quarterly environmental monitoring report sections. x FarametriX August 12,2026 Page 3 r Balefill Landfill statistical evaluation and groundwater quality trend review. r Balefill Landfill-related financial assurance support. r Coordination with the County, Kittitas County Public Health Department, or Ecology related to Ba lefi I I Landf i I I post-closu re mon itori ng or com pl ia nce. r Direct expenses supporting Balefill Landfill fieldwork. These work items are consistent with the Balefill Landfill monitoring and compliance activities described in the annual environmental monitoring reports (Parametrix 2025; Parametrix 2026). Cost Summary Table l summarizes the supportable Balefill Landfill post-closure cost identified to date. Additional cost allocation detail is provided in Appendix A. Table 1. Supportable Balsfill Landflll Cost ldentifled to Date OoatSource Cost Basls Allocatlon Appllcd BalsflllLandflll Amount countod Parametrix labor and direct expenses Onsite Environmental testing HWA services $711,661.04 reviewed $45,325.00 $140,094.00 Mixed allocation by work type 100% Balefill Landfill Average annual fieldwork allocation s260,830.37 $45,325.00 981,264,52 Totsl suppoitable Baleflll Landfl ll amount ldsntlfl od to dato $387,209.89 Parametrix invoice costs were reviewed by work type and allocated using the methodology summarized in this memorandum and detailed in Appendix A and Appendix B. Costs that were LPL- specific, unrelated to the Balefill Landfill, or not sufficiently supported for allocation were not counted toward the Balefill Landfill amount shown in Table 1. Relationship to the County's Broader Cost Estimate The supportable Balefill Landfill amount identified to date is based on Parametrix invoice records and County-provided cost information for HWA and Onsite Environmental. This amount does not include County labor, County equipment costs, internal County field costs, direct closed-landfill maintenance costs, additional laboratory or testing costs not captured in the Onsite Environmental total, or other County-paid costs that may be associated with Balefill Landfill post-closure care. Accordingly, the amount identified in this memorandum should be understood as the documented support amount based on the records reviewed to date. lt may not represent the full amount the County has spent on Balefill Landfill-related post-closure activities. Additional County-side costs may be added separately if the County would like this support package to more fully reflect its broader Ryegrass la ndfill management expenditures. Use of This Memorandum This memorandum is intended to support the County's internal documentation of costs associated with Balefill Landfill post-closure monitoring, reporting, financial assurance support, and related ParametriX August t2,2026 Page 4 closed-landfill work. This memorandum does not authorize withdrawal or transfer of funds from any County reserve account. Any transfer, reimbursement, or reserve adjustment should be completed in accordance with County financial procedures and applicable solid waste financial assurance requirements, including confirmation of the remaining required post-closure reserve balance after reimbursement. References Parametrix. 2025.2O24 Annual Environmental Monitoring Report - Ryegrass Balefill Landfill and Ryegrass Limited Purpose Landfill. Prepared for Kittitas County Solid Waste by Parametrix, Seattle, Washington. March 2025. Parametrix. 2026. 2025 Annual Environmental Monitoring Report - Ryegrass Limited Purpose Landfill and Ryegrass Balefill Landfill. Prepared for Kittitas County Solid Waste by Parametrix, Seattle, Washington. March 2026. Appendix A Cost Allocation Summary Tables .H,ppendix A: Cost Allocation Summary Tables Table 1. CootSource Revlewed C6tSourco Coet Rsvlowed Treatmsnt Parametrix Iabor and direct expenses Onsite Environmental testing HWA services $711,661.04 $45,325.00 $140,094.00 Reviewed by work type and allocated where supported. County identified as Balefill Landfill-only; counted altOO%. County-provided historicaI monitoring cost; aIlocaLed usirtg average annual fieldwork allocation. Table 2. Parametrix Cost Revlew Summary WTrsatment Total tbramstrfi Cost Balsfl ll Landfi ll ffnount Countod lncluded in final allocation Excluded from Balefill Landfill allocation Left out for defensibility Total kramotrlx cost revlarcd $448,978.07 $255,018.65 $7,664.32 $71166r-04 $234,575.94 $0.00 $o.oo $2U,576,94 Table 3. County- Provlded CoetAllocatlon CootSourcs Cost Basls Alocailon Applle<l Balefilll.andflll lfiiountOountod Onsite Envi ronmental testing HWA services Total Coun$Fprovlded costs aountod $45,325.00 $140,094.00 100% Balefill Landfill 58% Balefill Landfill $45,325.00 $81,,254.52 $t2a,575,52 Table 4.Total Supportable Balefill Landfill Coet ldentffied to Date c6t SOUTCO Baleflll Landflll Amount Oountsd Parametrix labor and direct expenses Onsite Envi ron mental testing HWA services Total su pportable Balsfl ll ta nclfl ll amount ldentlfl ed to date $260,630.37 $45,325.00 $81,254.52 $387,209.89 Detailed invoice records, progress letters, and County accounting records are retained separately and can be provided as backup if requested. A-1 Appendix B Allocation Method Tables ParametriX Memorandum DATE: TO: FROM: SUBJECT: PROJECT NUMBER PROJECT NAME: let's create tomorraw, logefher August 12,2026 Patti Stacy & Jesse Cox Tiffany Neier, PE Allocation Method & Tables 553-1763-011 Kittitas County Solid Waste On-call Purpose This appendix summarizes the allocation basis used to assign Ryegrass Facility (Facility) costs between the closed Ryegrass Balefill Landfill (Balefill Landfill)and the active Ryegrass Limited Purpose Landfill (LPL). The allocation method is based on the monitoring program, monitoring locations, monitoringfrequency, landfill-specific monitoring activities, and reporting effort described in the annual environmental monitoring reports (Parametrix 2025; Parametrix 2026). Costs were assigned directly when the available information identified a specific landfill unit or work item. Costs associated with combined Facility monitoring or reporting were allocated using the percentages summarized in this appendix. Groundwater Monitoring Basis Groundwater monitoring includes Balefill Landfill-only, LPL-only, and shared monitoring locations. Balefill Landfill groundwater monitoring is completed semiannually. LPL groundwater monitoring is completed quarterly. Well 88 was added to both monitoring programs in 2025' Table 1. Groundwater Monitoring Basls Monltorlng Locatlon Baleflll !andflll TPL Alocation Bash 82 B3 B4 B5 B6 Poison Spring 87 Clerf #4 Spring B8 Yes Yes Yes Yes Yes Yes No No Yes No Yes No No No No YeS Yes Yes Balefill Landfill monitoring location. Shared location. Balefill Landfill monitoring location. Balefill Landfill monitoring location. Balefill Landfill monitoring location. Balefill Landfill monitoring location. LPL monitoring location. LPL mon itoring location. Shared upgradient location added to both monitoring programs. Source: Parametrix 2025; Paramelrix 2026. 7L9 2ndAvenue, Suite 200 . Seattle, WA98104 | 206.394.3700 | Parametrlx'com Parametrik August 12,2026 Page B-2 Landfill Gas Monitoring Basis Landfill gas (LFG) monitoring includes perimeter monitoring at both landfill units and gas vent monitoring at the Balefill Landfill. Gas vent monitoring is specific to the Balefill Landfill. Table 2. LFG Monltorlng Basls LFG Monltorlng Compon€nt BalEllll Landflll Locstlong IPL Locatlong Allocatlon Basls Peri meter LFG mon itoring Gas vent monitoring Comblned Lfti plannlng and support 9 8 0 8 Perimeter LFG monitoring is completed at both landfill units. Gas vent monitoring is associated with the closed Balefill Landfill. Used as the starting point for combined LFG planning and support allocation. 26 35 Source: Parametrix 2025; Parametrix 2026. The location-count basis in Table 2 was used to calculate the initial LFG allocation factors. Perimeter LFG monitoring costs were allocated based on the perimeter monitoring locations. Gas vent monitoring costs were assigned to the Balefill Landfill because gas vent monitoring is associated with the closed Balefill Landfill. Combined LFG planning and support costs were adjusted from the location-count basis to reflect the additional Balefill Landfill-specific effort associated with gas vent stabilization monitoring, gas vent modifications, valve and access issues, related post-closure LFG evaluation, and surface emissions monitoring where identifiable in the cost records. Based on the monitoring location count: r Perimeter LFG monitoring only: 9 + 17 = 53o/o Balefill Landfill. r Combined perimeter LFG and gas vent monitoring location basis: 35 + 43 = 81% Balefill Landfill. Leachate Monitoring Basis Leachate monitoring is specific to the Balefill Landfill. Leachate is collected from the Balefill Landfill and conveyed to the leachate evaporation pond. Leachate sampling, leachate flow review, and leachate reporting were assigned to the Balefill Landfill when those costs were identifiable. Table 3. Leachate Monitorlng Basis L€achato Component 86l6flll Landflll LPL Allocatlon BasF Leachate sampling Leachate flow review Leachate repofting Yes Yes Yes No No No Balefill Landfill-specific monitoring. Leachate is generated from the Balefill Landfill and conveyed to the leachate evaporation pond. Balefill Landfill-specific reporti ng component. Source: Parametrix 2025; Parametrix 2026. Parametrik August L2,2026 Page B-3 Fieldwork Allocation Fieldwork percentages were applied to Parametrix field labor, Parametrix direct field expenses, and County-direct HWA field costs. The fieldwork allocation reflects the monitoring activities expected in each quarter. Table 4. Fleldwork Allocatlon Percentagos Quart6r Balofill Landflll LPL Basis Q1 Q3 Q4 8Oo/o 20% 75% 25o/o 40%60% Balefill Landfill semiannual groundwater, annual leachate, perimeter LFG, and gas vent monitoring; LPL quarterly groundwater and perimeter LFG monitoring. Primarily LPL quarterly groundwater and shared perimeter LFG monitoring; no routine Balefill Landfill groundwater or leachate event. Balefill Landfill semiannual groundwater, perimeter LFG, and gas vent monitoring; LPL quarterly groundwater and perimeter LFG monitoring. Primarily LPL quarterly groundwater and shared perimeter LFG monitoring, with Balefill Landfill gas vent monitoring and year-end field support. Parametrix direct expenses were allocated using the fieldwork percentages unless the expense was clearly tied to another work type. .Everage A.nnual Fieldwork "E llocation Where field costs were provided as one total rather than by quarter, the average annual fieldwork allocation in Table 5 was used. Table 5. Average Annual Fleldwork Allocatlon Allocation Typo Baleflll Lanctfill T"PL Calculatlon Basls Average annual fieldwork allocation 58o/o 42o/o Average of the quarterly fieldwork allocations in Table 4, rounded to whole percentages. The average annual fieldwork allocation was calculated as follows: r Balefill Landfill: (80% + 35o/o + 75% + 4o%) + 4 = 58To, rounded to the nearest whole percentage. r LPL: (2O% + 650/o + 25o/o + 60%) + 4 = 42o/o, rounded to the nearest whole percentage. This allocation was used for the County-provided HWA total because the cost was provided as a summary amount for historical field monitoring services. Reporting Allocation Reporting percentages were applied to environmental monitoring report labor. Reporting was allocated separately from fieldwork because report preparation is not driven only by field effort or the number of monitoring locations. Reporting also includes data review, tables, figures, compliance discussion, statistical evaluation, groundwater trend review, LFG summaries, leachate summaries, and coordination. Palametrik August 12,2026 Page B-4 The reporting allocation was based on the type of report being prepared. Quarterly reporting allocations were used for Ql through Q3 monitoring reports. Year-end reporting effort was allocated using the annual environmental monitoring report allocation because the annual report serves as the primary year-end reporting document and includes both landfill units. Table 6. Reportlng Allocatlon Percontages RepoftTfipe Baloflll [andflll I.PL Baale Q1 reporting Q2 reporting Q3 reporting Annual environmental monitoring report 7Oo/o 3Oo/o 7Qo/o 3Oo/o TOYo 30% Balefill Landfill groundwater, leachate, LFG, gas vent, and compliance reporting; LPL quarterly reporti ng. Primarily LPL groundwater reporting and shared LFG reporting, with limited Balefill Landfill reporting. Balefill Landfill groundwater, LFG, gas vent, and compliance reporting; LPL quarterly reporting. Combined report with additional Balefill Landfill post-closure monitoring and compliance components, including leachate monitoring, gas vent monitoring, semiannual groundwater compliance, and Chapter 1-73-35L WAC compliance discussion. The reporting percentages intentionally difFer from the fieldwork percentages where reporting effort differs from field effort. For example, Q2 reporting is weighted more heavily to the LPL because routine Balefill Landfill groundwater and leachate reporting are not part of the Q2 event, while LPL groundwater reporting continues quarterly. The annual environmental monitoring report allocation is weighted more heavily to the Balefill Landfill because the Balefill Landfill portion includes additional post-closure components. The LPL- portion includes groundwater and perimeter LFG reporting but does not include leachate or gas vent sta bi I ization reporting. Other Nlixed Work Allocation Some costs did not fit cleanly into fieldwork or reporting. Those costs were allocated using Table 7. Table 7. Other Mked WorkAllocation Percentages li/orkType Baloflll [andflll TPL Basb Balefill Landfill- specific work Shared groundwater network support Shared financial assurance support Combined LFG planning and support LPL-specific or unrelated work tQOo/o 5Oo/o 50% 90% 5Oo/o 50% LOo/o !OO%or excluded O% Work clearly identified as supporting only the Balefill Landfill Work supported the overall Facility groundwater monitoring network and was not clearly landfill-specific. Work supported financial assurance for both landfill units or the Facility generally. Adjusted from the LFG location-count basis to reflect additional Balefill Landfill-specific effort for gas vent sta bi I ization, gas vent mod if ications, va lvelaccess issues, post-closure LFG evaluation, and identifiable surface emissions monitoring. Work clearly identified as suppofting only the LPL or another non-Balefill Landfill Facility activity.Oo/o Parametrik August 12,2026 Page B-5 Cost .F,ssignment Rules The following rules were used to assign costs before applying allocation percentages: r Assign costs to the Balefill Landfill when the work clearly supported Balefill Landfill groundwater monitoring, leachate monitoring, LFG monitoring, gas vent monitoring, cover system support, post-closure compliance, or Balefill Landfill financial assurance. r Assign costs to the LPL or exclude them from the Balefill Landfill total when the work clearly supported only the LPL or another non-Balefill Landfill Facility activity. r Allocate shared rrrorritorirrg and reportirrg costs using Tables 4 through 7. r Exclude unclear costs from the Balefill Landfill total unless the available information provided enough support for allocation. References Parametrix. 2025.2024 Annual Environmental Monitoring Report - Ryegrass Balefill Landfilland Ryegrass Limited Purpose Landfill. Prepared for Kittitas County Solid Waste by Parametrix, Seattle, Washington. March 2025. Parametrix. 2026.2025 Annual Environmental Monitoring Report - Ryegrass Limited Purpose Landfill and Ryegrass Balefill Landfill. Prepared for Kittitas County Solid Waste by Parametrix, Seattle, Washington. March 2026. x