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SCOPE OF SERVICES <br />WATER RESOURCES (OPTION A) <br />Our scope of Services incorporates the tasks Identified by <br />the City in the RFP, and as expanded below. <br />Well Rehabilitation <br />PHASE I - WELL RECONNAISSANCE <br />L Dynamiowoll Evaluation <br />a. Perform Aquifer Pumping Tests <br />In order to evaluate the current health of the well, <br />and to provide a baseline from which to measure the <br />offeotiveness of the Phase ifwork, aquifer pumping tests <br />should be porfotmed. These tests will provide current <br />wall and aquifer oharaeteristlos slon$with providing <br />sand readings overtime from start of pumping. Recovery <br />measurements should be collected for a minimum of two <br />(2) hours followingtho constant rstapumpingtast, The <br />recommended aquifer pumping Weieare asloliows: <br />• Step Drowdown PumpingTests -to determine sPaclfle <br />capaoityartd well eMolencyrelatiortships. Typk0411y <br />three to four rates are selected for pumping; beginning <br />at the lowest rate and working up to the highest. <br />• Constant Rate pumping fest & Recovery Test - time <br />drawdown and recovery measurements Will be <br />made to determine aquifer parameters such as <br />transmissivity and storativity. it is.eacommended that <br />thei constant rate test be conducted for a minhnum of <br />1.2 hours with 2 hours of recovery measurements. <br />Our suboonsultant, GEOSCIENCE will provide full-time <br />inspection during pumping and recovery tests. <br />2. Static Well Evaluation <br />a. Remove Existing Pump and Equipment From Well <br />GEOSCIENCE has teamed with Best drilling and Pump, <br />Ino, (Best) to perform work associated with removal of <br />equipment from the wait. Best will remove the existing <br />pumps, motors, end column pipes from the well and store <br />this equipment in the immediate area around the we <br />site. At the Completion of all activities, Best will reinstall <br />the pump and equipment to their original depths. Dur cost <br />proposal for this task includes Contractor fees. <br />b. Perform Initial Video inspection <br />Once the pump is removed, paoific Surveys, LI,C (Pacific) <br />under the supervision of GEOSCIENCE personnel, will <br />perform a dual.soan downhole video survey of the well. <br />The purpose of the video surveys will be to document the <br />mhrlitinn and look for areas of damage and/or <br />plugging In the well screen. GEOSCIENCE will provide full- <br />time inspection during each video survey. The cost for the <br />surveying Contractor 15Included .In the proposal. <br />S. Results' and neoammendations <br />At the conclusion of the phase I evaluation, GEOSCIENCE <br />will prepare a tetter report that summarizes the details, and <br />results of the work performed. This report will include: <br />• Chronology of fieldactivitiea, <br />• Analysis of aquifer pumping tests, <br />• Evaluation of current well conditions, and <br />• Recommendations for further rehabpitatlon <br />procedures. <br />The fetter report viii be prosented to the City In M% <br />DRAFT electronic format for'rbviaw and comment. CRY <br />cornmentswill be Incorporated and GEOSCIENCE will <br />issue a 10M FINAL version in etectMnlc.format, as Well <br />as three (3) hard eopfas: for cost estimating purposes, it <br />is assumed that one round of comments, will be addressed <br />before a :100% FINAL version is Prepared. <br />PHASE II - WELL REHABILITATION <br />Based on the results of the activities described in Phase <br />I, some or all of the following tasks May be appropriate <br />for the proper rehabilitation of the well. Regardless of <br />what tasks are decided upon, It will be necessaryfor <br />the City to contract directly with a licensed C•57 drilling <br />Contractor to perform this work. The following scope items <br />are for dEOSCIENCEto assist the City with procuring a' <br />quallfied Contractor and providing field supervislon during <br />Contractor activities. <br />1. project Construatian Management <br />GEOSCIENCE will provide construction management <br />services during Phase 11 of the well rehabilitation to ensure <br />that all aspects of the project are carried out In a proper <br />and efficient manner. Construction management activities. <br />will include, but not limited to, attending a pre.ConstruWon <br />meeting with prospective Contractors, responding to <br />Contractor BFI's, review of Contractor submittals and <br />Invoices, review of change order requasts, and providing <br />status updates to City personnel. In addition we will ensure <br />that all work is performed to the satisfaction of regulatory <br />agencies. In addition, GEOSCIENCE will assist, as <br />necessary, with the procurement of any permitting required <br />to perform this work, including NPDES requirements, <br />2. Pro -Construction Meeting and Pre -Mobil Cation <br />coordination with Contractor <br />O <br />A <br />4.� <br />I <br />25E-510 <br />