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Scope of Work <br /> <br />D0 <br /> <br />Evaluate chlorination alternatives. Prepare preliminary layout of <br />recommended chlorination facilities. <br />Summarize noise control and soundproofing recommended for the well head <br />facility. <br />Select well pump based on recommendation based on well testing. <br /> <br />Preliminary Site Improvements <br />1. Show demolition of old Bristol Reservoir, wood frame Well No. 14 and hydro- <br /> generating buildings. Show required grading/fill requirements. <br />2. Provide sketches of proposed modifications to Phase I reservoir. This will <br /> include modification of the west wall and roof extensions, proposed new roof <br /> coating, and proposed pedestrian security cage/bars on the stairway to the <br /> reservoir roof. <br />3. Provide sketches of the proposed modifications to the concrete stairs from the <br /> hydro-generation building into the underground vault. <br /> <br />Preliminary Design Submittal <br />1. Prepare submittal to the City of the preliminary design. <br />2. Meet with City and obtain comments, revisions, etc. <br />3. Modify preliminary plans as required and resubmit to the City. <br /> <br />TASK NO. 5 - GEOTECHNICAL INVESTIGATION (work to be performed by <br /> Converse) <br /> <br />Preliminary Work <br />1. Assemble and review available geologic, boring, and earthwork information. <br />2. Perform a site reconnaissance. <br />3. Contact Underground Services Alert (USA) and City personnel to locate <br /> existing utilities at the site. <br /> <br />Bo <br /> <br />Field Drilling <br />1. Drill three (3) hollow-stem auger borings to depths of 30 to 50 feet. <br /> <br />4. <br />5. <br /> <br />6. <br /> <br /> The <br />borings are proposed to be located northwest, west (at mid-reservoir), and <br />southeast of the existing reservoir. <br />At the northwest and southeast locations, a piezometer will be installed to <br />measure the fluctuations in groundwater levels during the rainy season. <br />Core the existing concrete reservoir bottom at two locations and dig shallow 5- <br />to 1 O-foot deep hand auger borings. <br />Perform Standard Penetration Tests. <br />Locate and log all field exploration work, and obtain soil samples for <br />laboratory testing. <br />Record the groundwater level in each boring and subsequently in each <br />piezometer. The piezometers will be protected so that readings can be taken up <br />to, and possibly after, the time of construction. <br /> <br />City of Santa Ana <br /> <br />ASL Consulting Engineers <br /> <br />JOHN GARTHE RESERVOIR IMPROVEMENTS PHASE II <br /> 4 <br /> <br /> <br />