Specifications include, but are not limited to: Quarterly groundwater monitoring on a schedule approved by the Washington State Department of Ecology. The groundwater monitoring is intended to satisfy current Ecology requirements with proposed modifications following approval of a proposed remedy. Activities associated with monitoring, such as investigation-derived waste (IDW) disposal, are included in the scope. Qualified consultants will provide the following services: • Prepare and maintain site-specific health and safety plan to be used during all on-site activities. • Conduct eight quarterly groundwater monitoring events as defined in the Supplemental Groundwater and Surface Water Remedial Investigation Sampling and Analysis Plan and Quality Assurance Project Plan, Remedial Action Units 2C and 3, February 2018 (2018 SAP/QAPP) with monitoring frequency as modified in Table 3: Sampling Frequency (separate attachment). Three onsite water supply wells that are not listed in the 2018 SAP/QAPP are included in the proposed monitoring program. Additional information on the mandatory sampling program is provided in Table 1: Groundwater Monitoring Wells Details, Table 2: Water Supply Well and Surface Water Location Details, and Table 4: Laboratory Method Reporting Limits (provided as separate attachments). • Manage historical (first quarter 2007 to first quarter 2019) and current groundwater laboratory and field parameter data in an environmental database (EQuIS or similar)