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0 ERGROUND STORAGE TANK <br />Section 13215 - Page 7 <br />installation instructions. Local codes, State codes, Health and Safety <br />regulations shall apply and should be consulted. Failure to follow these <br />installation instructions may result in tank failure which shall be correct- <br />ed by the contractor at his sole expense. Construction shall be double <br />wall type in accordance with Health and Safety regulations for underground <br />storage of hazardous substances. Provision shall be made for detecting <br />leaks from the inner tanks. <br />Steel plate tank shall be all welded tank. Tank shall either be fiber- <br />glass resin coated or cathodically protected, or both. Following fabrica- <br />tion and testing the exterior surface shall be sandblasted to white metal, <br />and spray -coated with a glassreinforced isophthalic polyester resin of <br />sufficient thickness to show no holidays using a Tinker and Rasor Model AP -W <br />Holiday Detector at 35,000 volts. <br />Coated steel tank manufactured with built in cathodic protection shall be <br />constructed to Steel Tank Institute specifications. A cathodic protection <br />test station shall be provided. <br />Tank manufacturer shall provide a kit of preformed caps for lifting lugs <br />and any unused fittings, along with glass matting and container of resin, <br />for sealing all exposed metal after the tank is installed. <br />Apparatus in contact with the tank necessary for resisting uplift forces <br />indicated on the plans shall be furnished by the tank manufacturer. <br />Leak Detection System: Leak detection system shall consist of a UL listed <br />hydrocarbon system and a central detector alarm panel. At least one sensor <br />shall be provided for each underground fuel or waste oil storage tank. <br />Sensors shall detect the presence of water and hydrocarbons either alone or <br />in combination. <br />Sensors shall detect a 1/4 inch layer of hydrocarbons floating on water or <br />a 2 inch depth of hydrocarbons when there is no water present. Each sensor <br />shall have test buttons for testing for water, hydrocarbons or dry condi- <br />tion. <br />B. Testing: Prior to installation, tank shall be tested above ground at 5 <br />psi pressure for a minimum of 1 hour. Fittings shall be soaped and checked <br />for leaks. During the test, tank is not to be left unattended. If tank <br />is dropped or impacted after initial test, retest tank and soap areas of <br />impact to check for tank damage. <br />C. Handling: Tank must not be dropped, rolled or impacted. Check the tank <br />until ready for installation and tie it down if high winds are expected. <br />Use minimum 1/2t° diameter nylon or hemp rope over each tank end and tie to <br />adequate size stakes driven into ground or other means to assure adequate <br />hold-down. <br />D. Lifting Tank: Use installed lift lug(s) to lift tank; guide the tank with <br />guidelines. If tanks have to be moved, they must be set on smooth ground <br />free of rocks and foreign objects and rechecked. Capacity of lifting <br />equipment should be checked before installation. <br />R060889:ds:fw MAR 702 <br />