2023-09-12-minutes-solid-waste-and-maintenance

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SCOPE OF WORK (continued) Assumptions: • The County will provide all data concerning equipment and materials throughput required for emission inventory calculations. This data is necessary for the emission inventory calculations to be done. • This scope does not include preparation of detailed ambient impact modeling utilizing AERMOD. • Drawing and SEPA preparation will not be required. 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 has been allocated to this task. A"TASK 09 —ANNUAL ENVIRONMENTAL MONITORING REPORT Objective: Prepare annual report documenting the results of the four quarterly groundwater monitoring events in accordance with the requirements of Solid Waste Handling Standards (Chapter 173-350 WAC), the current solid waste handling permit issued by Kittitas County Health Department, the Sampling and Analysis Plan (SAP), and Guidance for Groundwater Monitoring at Landfills and Other Facilities Regulated Under Chapters 173-304, 173-306, 173-350, and 173-351 WAC (December 2012, Ecology Publication 12-07-072). Additionally, summarize the environmental monitoring for gas and leachate monitoring of the LPL and the closed landfill. Approach: Prepare annual report summarizing the data collected during quarterly monitoring for the LPL and bi-annual sampling for the closed landfill. The annual report will include evaluating the groundwater data in accordance with the statistical approach presented in the SAP, which consists of establishing a subset of parameters for formal detection monitoring and conducting quarterly comparisons of data to intrawell trends and those that are statistically significant (95%) for both long term and short-term trends. For new wells without historical data, the baseline data will be established with the initial eight data points. Deliverables: Draft (PDF via Parametrix SharePoint site) and Final Environmental Monitoring Annual Report (three copies and PDF via Parametrix ftp site). The data for each quarter in 2024 will be submitted to the Ecology's EIM database following submittal of the final annual report. Assumptions: • Copies of original laboratory reports, including laboratory QA/QC results, will be provided to Parametrix by HWA or the analytical laboratory. • Groundwater data will be provided to Parametrix in electronic format. The laboratory will provide groundwater quality data in an EIM-ready format. • Groundwater, leachate, and gas sampling will be completed by others (HWA) • Gas and Leachate data will be provided to Parametrix by HWA with digital copies of the gas results and electronic format of leachate testing. Kittitas County Solid Waste Groundwater Monitoring Well, LPL Closure, Biosolids Expansion 9 September 2023 Area, and Air Permit