2025 Kittitas County Agreement for Services Parametrix (2)

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Kittitas County Agreement for Services (rev. 5/14/25) Page 9 of 28 •Waste in place and heat input capacity reporting summary per WAC 173-408. •Annual Reporting for the Balefill per WAC 173-408-170 for 2025 and 2026. The annual reports for each year are due by April 1 of the subsequent year. Assumptions •County will provide waste records for the Balefill Landfill to assist with the initial waste in place reporting •LFG passive vent monitoring will be completed under Task 02. These results will be included in the WAC 173-408 required monitoring. Task 04 – Septage Facility Management Objective Support Kittitas County in the planning, coordination, and documentation of treated septage land application events at the Ryegrass Septage Facility in accordance with WAC 173-308 and the approved Site-Specific Land Application Plan (SSLAP). This task includes preparation of Land Application Event Letters (two per year anticipated), coordination with Ecology for approval, and integration of vegetation and seed recommendations from a qualified rangeland specialist retained as a subcontractor to Parametrix. Activities •Evaluate Previous Applications – Review soil sampling data, plant performance, and application results from the most recent event(s) to inform planning. •Coordinate with Rangeland Specialist – Work with a qualified vegetation/seed specialist subcontracted to Parametrix to assess field conditions, recommend plant species, application approaches, and seeding methods based on site characteristics and SSLAP objectives. •Prepare Land Application Event Letters – Draft, finalize, and submit to Ecology two event letters per year including: o Summary of prior event performance. o Proposed fields, acreage, and crop/vegetation species. o Agronomic rate calculations based on Ecology-approved methods and recent soil data. o Proposed application method and season. o Supporting maps and tables. •Coordinate with Ecology – Submit event letters, address Ecology review comments, and obtain written approval prior to application. •Event Summary Support – Provide County with documentation of approved application rates, timing, and field-specific requirements for contractor implementation. Deliverables •Two draft and final Ecology-approved Land Application Event Letters per year, including all supporting calculations, maps, and tables.