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Scope of Work Kittitas County Solid Waste 553-1763-010 Ryegrass LPL and Future Uses 3 May 2025 Amendment 03 • Delineate potential new fields. • Review testing data performed by a third party using the Soil Sampling Plan that was developed for the testing of the currently proposed fields. • Revise the Site- Specific Land Application Plan to include a demonstration of the viability and effectiveness of several different plant species. The demonstration will include: o Desktop analysis of several plant species on their ability to grow in areas of similar climates. o Review of available information on the crops that elk prefer to eat. o Fenced off test areas which will help determine if the plants are better able to grow when not being grazed on by elk. o Review of annual soil testing to determine the plant’s effectiveness in removing nitrogen from the soil. o List of alternative plants if the crop seeds do not grow well in the site conditions. • Working with a third party, such as a range land specialist, to determine the best application methods for the various crops. • Coordination with Ecology for approval of permit. • The first year of plant monitoring. Future years will be included in a future amendment. Assumptions • The County will hire a third party to test the soils for the initial evaluation and the annual testing. • Ecology will have one round of comments on the General Biosolids Management Permit. • No new SEPA checklist will be needed. • Ecology will approve the General Biosolids Management Permit with the additional fields once an agreement on the demonstration method is reached. • The demonstration will continue for five years. This amendment only includes the first year. • Further plan monitoring for the life of the permit will be included in a future amendment after the scope of the monitoring work is approved by Ecology. • This scope does not include coordination with other entities such as WSDOT, Central University, and government agencies for funding or cooperative work. Task 08 – Unanticipated, Critical Work Allowance If unanticipated, critical work activity becomes necessary that is not within the authorized scope of services, the County may authorize additional services utilizing the budget established in this task. An allowance of $10,000 is allocated to this task.