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EXHIBIT "A" <br />I. SCOPE OF SERVICES <br />Contractor will provide <br />• interior cleaning and inspection services for the following five potable water <br />storage tanks: <br />o Sequoia 1 <br />o Sequoia 2 <br />o Cambridge 1 <br />o Cambridge 2 <br />o Easter Bowl <br />• Repair of the internal ladder up to the top four rungs and rails in the <br />surrounding area, as needed, for the following potable water storage tank: <br />o Wilmington <br />Tank Evaluation <br />Contractor shall perform a comprehensive interior and exterior inspection of the five <br />indicated tanks. The Contractor shall provide high quality video of all internal surfaces <br />above and below waterline, including the roof, and outside the tank. The video shall be <br />narrated on site. The Contractor shall also provide high quality digital photographs of <br />inside and outside the tank. All equipment and divers shall be properly disinfected prior <br />to each dive. <br />The following items shall be inspected on each tank: <br />• Condition of steel on the interior and exterior (as applicable). <br />• Condition of concrete walls (as applicable). <br />• Corrosion of any exposed materials. <br />• Conditions of tank hatches, vents and other penetrations, as well as screens, <br />overflow systems and covers. <br />• Measurement of bottom sediment depths in at least (4) locations. Sediment shall <br />then be averaged out over the surface of the tank. <br />• Percentage of coating failure and corrosion on all coated surfaces. <br />• Condition of foundation and anchors (as applicable). <br />• Cathodic protection review of all components (as applicable). <br />• Pit and blister analysis. The extent of pitting shall be described by the location <br />and character. <br />• Examine wall -floor joints for leakage and signs of concrete deterioration. <br />• Examine roof. <br />• Examine all seams and floors. <br />• Inspect support columns and column to roof area. <br />• Dry Film Thickness (DFT) readings of painted surfaces (roof and wall plates) <br />Tank Cleaning <br />The Contractor shall comply with latest AWWA standards for tank cleaning. <br />REV: 01-25-2021 MI <br />ATTY/AGR.2021.015/Marine Industrial Tank Inc (Page 11 of 15) <br />