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SCOPE OF SERVICES WATER RESOURCES (OPTION A) Our Scope of Services incorporates the tasks Identified by the City in the RFR and as expanded below. Well Rehabilitation PHASE I - WELL KC9NNAISSANCE 1. Dynamic Well Evaluation a, Perform Aquifer PumpingTesta In order to evaluate the current health of the well, and to provide a baseline from which to measure the effectiveness of the Phase 11 work, aquifer pumping;test$ should be performed, These tests will provide current well and aquifer dharaoteristies along with ,providing sand readings overtinte.from start of pumping. Recovery measurements should be collected for a minimum of two (2) hours following the constant rate pumping test. The recommended aquifer pulrrping torts are as.follows: • Step Drawdown PumpingTests - to determine specific capacity arid well efficiency relationships, Typi sally three tofourrates are selected for pumping beginning at the lowest rate and working up to the highest. • Constant Rate Pumping Test & Recovery Test - time drawdown and recovery measurements will be made to determine aquifer parameters such as transmissivity and storativity. it is recommended that the constant rate test be conducted for a minimum of 12 hours with 2 hours of recovery messuremotits. our suboonsultsnt, GEOSCIENCE will provide full-time Inspection during pumping and recovery tests. 2. Static Well F'valuatjan a, Remove Existing Pump and Equipment Krona Well GEOSCIENCE has teamed with Best Drilling and Pump, Inc. (Best) to perform work associated with removal of equipment from the well, Best will remove the existing pumps, motors, and column pipes from the well and store this equipment In the immediate area around the well site. At the completion of all activities, Best will reinstall the pump and equipment to their original depths. Our coat proposal for this task includes Contractor fees. b, Perform Initial Video Inspection Once the pump is removed, Pacific Surveys, li,C (Pacific) under the supervision of GEDSCIENCE personnel, will performs dual -scan downhole video survey of the well. The purpose of the Video surveys will be to document the current condition and look for areas of damage and/or plugging in the well screen. GEOSCIENCE will provide full- time Inspection during each video survey. The post forthe surveying Contractor is included. in the proposal, 3. Results and recommendations At the conclusion of the Phase I evaluation, GEOSCIENCE will prepare a letter report that summarizes the details and 'results of the work performed. This report will Include„ • Chronology of flold activities, . Analysis of aquifer pumpingtesta, t Evaluation of ourl'ent well conditions, and Recommendations for further rehabilitation procedures. The letter reportwill be presented to the City In 100% DRAFT electronic format for review and comment. City pomments:will be incorporated and GEOSCIENCE will issue a JQO% FINAL version In electronic format; as well asrthree (3) hard copies, For cost estimating purposes, it is assumed that one round of comments will be addressed before a 100% FINAI. version Its prepared. ,PHASE II - WELL REHABILITATION Based on the results of the activities described in Phase 1, some or all of the following tasks may be appropriate for the proper rehabilitation ofthe.well, Regardless of what tasks are decided upon, it will be necessary for the City to,contract directly with a licensed C•57 drilling Contractor to perform this work. The following scope items are for GEOSCIENCE to assist the City with procuring a qualified Contractor and providing field supervision during Contractor activities. L Proj®et Construction Management GEOSCIENCE will provide construction management services during Phase 11 of the well rehabilitation to ensure that all aspects of the project are carried out In a proper and offlclant manner. construction management activities will include, but not limited to, attending a pre -construction meeting with prospective Contractors, responding to Contractor RFI's, review of Contractor submittals and Invoices, review of change order requests, and providing status updates to city personnel. In addition we will ensure that all work is performed to the satisfactlon of regulatory agencies. In addition, GEOSCIENCE will assist, as necessary, with the procurement of any pennitting'required to perform this work, including NPDES requirements. 2. Pre -Construction fi and Pre -Mobilization Coordination with Contractor I V R t�3