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<br />and asphalt repair for the 10 locations. The excavating estimates will be submitted to the City under a <br />separate letter. <br /> <br />V&A will be on-site during excavation to attach the test leads to the pipelines and measure ultrasonic <br />thickness of the exposed pipelines. Phase I will determine the existing condition of the pipelines, <br />determine if the corrosion monitoring systems require rehabilitation prior to installation of the cathodic <br />protection system and determine if the pipelines are suitable for installation of the cathodic protection <br />system. <br /> <br />Phase I will determine the type of cathodic protection system that is appropriate for each pipeline and <br />determine if there is other work that should be included with the installation of the cathodic protection <br />system. Phase II will involve the design of the cathodic protection system for the two pipelines. The <br />preliminary scope of work for Phase II is indicated below. The final scope of work and fee for the <br />cathodic protection design will be determined during Phase I. <br /> <br />SCOPE OF WORK <br /> <br />Task Description <br /> <br />Phase I - Pipeline Evaluation <br /> <br />1. Document Review - Review the pipeline alignment, leak reports, geotechnical reports and <br />available drawings and documents for the pipelines. <br /> <br />2. Initial Field Evaluation - Perform an evaluation to locate test stations and test points, and <br />to measure baseline potentials at accessible test points. Test methods will be determined <br />in the field and will be based on access to test points. Proposed methods include: <br /> <br />. Pipe-to-soil potentials <br />· Current requirement tests <br />· Electrical continuity tests <br /> <br />3. Test Station Locations - Indicate the locations for installation of new pipeline test stations. <br />Centerline location and excavation of the pipelines will be completed by others in <br />accordance with City standards. Approximately 10 test stations will be installed, however <br />the quantity and locations will be determined during the initial field evaluation. Proposed <br />test stations will be at critical locations including: <br /> <br />· 800 to 1000-foot intervals for the buried length of the pipelines <br />. Ends of the metallic pipelines <br />. Buried insulating joint locations <br /> <br />4. Test Station Installation and Direct Assessment - Measure the remaining wall thickness <br />and corrosion pit depths of the exposed pipelines using an ultrasonic thickness meter and <br />pit depth gauge. <br />