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<br />I, <br />.' <br />I <br />I <br />I <br />I <br />I, <br />t <br />I <br />, <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />INTRODUCTION AND BACKGROUND <br /> <br />In accordance with the City of Arden Hills Purchase Order Number 21088, KTA- <br />Tator, Inc. (KTA) has completed the evaluation of the "South Tank" elevated water <br />storage tank located on Red Fox Road, in Arden Hills, Minnesota. <br /> <br />The hydropillar type tank has a nominal <br />capacity of 1,000,000 gallons, a height to lower <br />capacity level of 101 '-0" and a diameter of 74'- <br />0". The tank's head range is approximately 40'. <br />The tank is of welded steel construction. The <br />tank has a domed steel condensate ceiling in the <br />dry riser. The tank's inlet/outlet pipe is <br />insulated. The tank has 1-1/2" diameter anchor <br />bolts on an approximately 52' diameter bolt <br />circle. All anchor bolts are on the inside of the <br />dry riser. The tank was fabricated and erected by <br />Pitt-DeMoines, Inc. in 1987, In 1997 the <br />coatings on all tank exterior and interior surfaces <br />were removed and replaced. The tank does not <br />have a cathodic protection system. The tank has <br />fourteen cellular antennas attached to the fluted <br />column pedestal, and nine cellular antennas on <br />the roof. The tank roof also has two dish <br />antennas and two globe style aviation lights. <br />KT A determined the surface area of the tank in <br />order to develop cost estimates for coating <br />repairs. The exterior surface area is <br />approximately 33,700 square feet. The interior <br />dry portion of the tank has 26,400 square feet of <br />surface area, and the interior wet portion of the <br />tank has 18,900 square feet. <br /> <br /> <br />Photograph I - Arden Hills Sooth Tank <br /> <br />The purpose of the investigation was to <br />assess the condition of the coatings, visually <br />inspect the sanitary, safety, operational and structural condition of the tank, and make <br />appropriate recommendations. The following report includes field observations, the <br />results of field-testing, a discussion and recommendations. Photographs of the existing <br />tank conditions are included in the report and additional photographs are appended. <br /> <br />Elevated Water Storage Tank <br />City of Arden Hills South Tank <br />