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Scope of Work <br /> <br />TASK NO. 3 - DRILLING OF WELL (work to be performed by RCS) <br /> <br />Review of Existing Data <br />1. Collect from the <br /> <br /> City available testing, water level, specific capacity, and <br />water quality data from existing Well No. 36 and Well No. 18. <br />Perform a cursory review of this data. <br />Investigate possible hydro-geologic influences of Well No. 36 and Well No. 18 <br />on new well. <br /> <br />Review of Technical Specifications <br />1. Review City's current technical specifications for new wells. <br />2. Propose changes/edits/additions as deemed necessary. <br />3. Finalize plans and specifications for drilling and testing of Well No. 39. <br />4. Meet with the City to review final plans and specifications. <br /> <br />Preliminary Well Activities <br /> 1. Prepare for and attend pre-bid <br /> <br />2. <br /> <br />3. <br /> <br />4. <br />5. <br /> <br /> meeting and provide pre-bid clarifications <br />and/or addenda, if necessary, for the new well. <br />Provide assistance to the City in the review of construction cost estimates and <br />drilling schedules from the chosen drilling contractor. <br />Assist the City in the preparation of a National Pollutant Discharge Elimination <br />System (NPDES) permit for the new well. <br />Prepare for and attend a pre-construction meeting for the new well. <br />Liaison with the City, ASL and the drilling contractor during mobilization to <br />the well site. <br /> <br />Do <br /> <br />Field Monitoring of Well Construction (based on a pilot hole depth of 1325 feet bgs) <br />1. Provide experienced geologists to geologically log the upper 1100 feet of <br /> representative drill cuttings collected by the contractor. Full-time detailed <br /> geologic logging will commence at about 1100 feet below ground surface (bgs) <br /> and will continue to the proposed pilot hole depth of 1325 feet bgs. For this <br /> proposal, we have assumed an average overall drill rate of 10 feet per hour for <br /> drilling of the pilot hole. No aquifer isolation zone testing in the open borehole <br /> is anticipated during the pilot hole drilling. <br />2. Witness, review and analyze the electric logging of the pilot hole at the site and <br /> provide a review of geophysical logs. Correlate this electric log to the one in <br /> RCS files for nearby Well No. 36. Provide a casing completion <br /> recommendation to the City and the driller for the final rem diameter(s), <br /> casing depths, and perforation intervals for the new well. <br />3. Monitor, on a full-time basis, the installation of the recommended well screen, <br /> blank casing, gravel pack, and cement seal for the new well (anticipated final <br /> well depth is 1300 feet). This monitoring will be conducted on a full-time <br /> basis in order to observe contractor compliance with the technical <br /> specifications. We estimate at this time that approximately 400 to 450 feet of <br /> <br />City of Santa Ana <br /> <br />JOHN GARTHE RESERVOIR IMPROVEMENTS PHASE II <br /> <br />ASL Consulting Engineers <br /> <br /> <br />