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REV: 08-14-25 LF Subtask 4.3 - Chemical Analysis of Groundwater Samples Consultant shall submit samples to a California certified analytical laboratory for analysis under chain-of-custody for analysis of a list of selected halogenated volatile organic compounds (HVOCs) that include PCE; TCE; cis-1,2-DCE; trans-1,2-DCE; 1,1-DCE; and vinyl chloride, by EPA Method 8260B. If requested by the City, Consultant may submit groundwater samples from five selected wells for microbial (DNA) analyses of Dehalococcoides (DHC) to monitor levels in groundwater after remediation. Subtask 4.4 - Monitoring Reports Upon receipt of the laboratory analysis data, Consultant shall prepare a Groundwater Monitoring Report describing the field activities, analytical methods, results, and recommended next steps. Consultant shall submit the draft for City review and incorporate City feedback to create a final report to submit to the RWQCB. Consultant shall upload the report to the RWQCB Geotracker database in accordance with regulatory requirements. An electronic copy of each report shall also be emailed to the City. Task 5 - Project Management and Administration Consultant shall manage the project budget, scheduling, invoicing, and progress reporting for this project. Task 6 - Additional As-Needed Consultation Services If unanticipated work is requested by City staff to complete this project, prior to the start of any work under this task, Consultant shall develop a draft scope of work and estimate the total hours anticipated. Consultant must obtain approval from the Public Works Director or designee for the additional consultation services and cost before proceeding. II. PAYMENT SCHEDULE Consultant shall invoice monthly and be compensated on a time-and-material basis per the following rate schedules. For Tasks 1 through 4 outlined above, Consultant shall not charge for any lodging or meal expenses. Consultant may request with supporting documentation an increase of no more than 3% to their labor rates at each anniversary of the Effective Date for the duration of the Agreement. Any price increase must be approved by the Public Works Director or designee. If accepted, any price increase shall remain firm for a minimum of one year. ATTY/AGR.2025.210/Farallon Consulting, LLC (Soil vapor investigation & groundwater sampling) (Page 15 of 19)