Agmt15 Groundwater & Environmental Services, Inc.

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EXHIBIT "A" SCOPE OF SERVICES GES will perform the following activities, as described in the July 30, 2014, Workplan: Task 1 —Well Gauging and Groundwater Sampling GES will measure depth to groundwater, and will purge and sample water from the 18 accessible monitoring wells. The monitoring event will include the following: • Gauge and sample the 17 onsite wells, as well as the one offsite well installed on City property in 2008 by Genesis Engineering and Redevelopment (Genesis) at the intersection of Jefferson Avenue and Middlefield Road as part of the negotiations with the Bolton family; • Purge at least three well casing volumes of groundwater from each well using a Waterra pump and dedicated tubing; • Measure pH, temperature, and electrical conductivity until the measurements are stable; • Collect a groundwater sample from each well; • Submit samples to a California certified analytical laboratory for analysis of selected halogenated volatile organic compounds (HVOCs) by EPA Method 8260B; and • Place purge water in 55-gallon drums for proper disposal. Task 2 — Chemical Analysis of Groundwater Samples Groundwater samples will be submitted to a State-certified chemical testing laboratory under chain-of-custody for analysis of a select list of HVOCs that include: PCE; TCE; cis-1,2-DCE; trans-1,2-DCE; 1,1-DCE; and vinyl chloride, by EPA Method 8260B. Task 3 — Preparation of Quarterly Monitoring Reports (QMRs) Upon completion of Tasks 1 and 2, GES will then prepare a draft Groundwater Monitoring Report for review by the City. With the City's comments, GES will finalize the report for submittal to RWQCB. For budgeting purposes, we have assumed that only minor revisions to the draft report will be needed Task 4— Ongoing Consultation, Regulatory Agency Discussions, and Project Management GES will continue to consult with the City via meetings, teleconferences, and e-mail, throughout the project. We will also discuss the project status with RWQCB staff, and will coordinate with Regency Centers on Site access details and performance of Site work, as necessary, in accordance with the License and Access Agreement between the City and Regency Centers, executed on November 12, 2014. This task also includes time for management of the project budget, schedule, and invoicing matters. ATTY/AGR.2015.014/GROUNDWATER&ENVIRONMENTAL SERVICES REV:O1-27-15 MLG Page 9 of 30