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'N NATIONAL <br />C CORROSION <br />Project Approach <br />National Corrosion <br />www.notional-corrosion.com <br />Task 1— Review and Planning <br />Project Management - National Corrosion shall conduct management activities to ensure tasks <br />stay on schedule and budget. Documentation may be recorded as required as National <br />Corrosion attends meetings with staff such as kickoff, research, report review, and as needed <br />project issues. <br />Construction Management— National Corrosion shall conduct management activities to ensure <br />safety, completeness, and quality of all corrosion protection installations, including but not <br />necessarily limited to the West and East Reservoir installations. <br />Review — National Corrosion shall work with the City of Santa Ana to obtain record drawings and <br />historical data of all assets subject to corrosion. <br />Planning —A mutually agreed -upon list of sites will be created based on priority and efficiency to <br />conduct field testing and corrosion assessment. List of locations and appurtenances may be <br />based on recommendations, importance, or severity level after review of the plans and meeting <br />with the city. <br />Task 2 — Field Survey and Testing <br />A NACE certified corrosion engineer will conduct a comprehensive survey of agreed upon assets <br />including pipelines, fittings/appurtenances, pump stations, reservoirs, and vaults. This includes <br />Metropolitan Water District connections and pressure -reducing valves. Work conducted will <br />include the following data collection and verification: <br />• Visual inspection of all accessible locations <br />• Obtain and measure pipe -to -soil potential measurements to verify active corrosion as <br />well as operational condition of existing cathodic protection systems. <br />• Measure soil resistivity at locations where soil is suspected as a future risk. <br />• Test Reservoirs: <br />o Record current outputs of anodes and test permanent reference cell <br />o Insert portable reference cell and measure cathodic protection levels <br />o Test external piping for corrosion <br />o Assess tank chime for corrosion <br />o Create specifications and procedures for repair for corrosion issues <br />• Establish atmospheric assessment program: <br />o Create an assessment standard which may include the following criteria: <br />• Location and date of inspection <br />• Description, pipe lengths, diameters, and quantities <br />• Access and safety issues <br />• Percent coating damage <br />• Percent bare pipe exposed <br />• Written Coating Assessment, Overall corrosion assessment <br />• Mechanical damage assessment <br />