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moder n modern ern v�eidlnIg Compc' .I <br /> FABRICATORS OF METAL PRODUCTS <br /> INSTALLATION PROCEDURES FOR UNDERGROUND STORAGE TANKS <br /> -CAUTION N . F . P . A . - 30 : TIGHTNESS TESTING REOUIREMENTS : IT IS THE <br /> RESPONSIBILITY OF THE OWNER TO PROVIDE THE FOLLOWING TESTS <br /> PRIOR TO COVERING THE TANK ( S . ) <br /> N . F . P . A . - 30 : 2 - 8 . 3 : - UNDERGROUND TANKS AND PIPING . BEFORE BEING <br /> COVERED . ENCLOSED OR PLACED IN USE . SHALL BE TESTED FOR <br /> TIGHTNESS HYDROSTATICALLY . OR WITH AIR PRESSURE AT NOT LESS <br /> THAN 3 - PSI . AND MORE THAN 5- PSI . " <br /> N . F . P . A . - 30 : 2 - 8 . 3 : 1 " SECONDARY CONTAINMENT TANKS ( TYPES 1 AND <br /> 11 ) SHALL HAVE THE PRIMARY ( INNER ) TANK TESTED ACCORDING TO <br /> 2 - 8 . 3 AND THE INTERSTITIAL SPACE ( ANNULUS ) TESTED USING AIR AT <br /> 3 TO 5 PSIG OR VACUUM AT 5 . 3 IN . HG . THE PRESSURE OR VACUUM <br /> SHALL BE HELD FOR ONE HOUR . CARE SHALL BE TAKEN TO ENSURE <br /> THAT THE INTERSTITIAL SPACE IS NOT OVERPRESSURED OR SUBJECTED <br /> TO EXCESSIVE VACUUM . ' <br /> N . F . P . A . - 30 : 2 - 8 . 4 : - BEFORE THE TANK IS INTIALLY PLACED IN <br /> SERVICE . ALL LEAKS- SHALL BE CORRECTED IN AN ACCEPTABLE MANNER . - <br /> N . F . P . A . - 31 - STANDARD FOR INSTALLATION OF OIL BURNING EOUIPMENT - <br /> HOLE SIZES FOR INSTALLATION OF TANKS IN STABLE SOIL CONDITIONS : <br /> GENERAL NOTES : <br /> 1 . THE EXCAVATED OPENING FOR INSTALLATION OF UNDERGROUND TANK( S ) SHALL BE <br /> SUITABLY EXCAVATED ( REFER 'TO OSHA. STATE . OR LOCAL CODES GOVERNING <br /> OPENINGS . ) LEVELED AND BACKFILLED PER THE FOLLOWING INSTRUCTIONS . <br /> 2 . REFER TO THE -FINISHING INSTRUCTIONS- FOR SPECIAL REQUIRMENTS PRIOR TO <br /> BURIAL OF "GLASTEEL' TANKS . <br /> 3 . TANKS SHALL BE COMPLETLY EMPTY DURING HANDLING OR INSTALLATION TO PREVENT <br /> UNDUE STRESS TO THE TANK ( S . ) <br /> 4 . IN THE EVENT A TANK MUST BE INSTALLED . FILLED WITH PRODUCTS . PRIOR TO <br /> BACKFILLING. THE LIQUID LEVEL WITHIN THE TANK SHALL NOT EXCEED THE COMPACTED <br /> BACKFILL LEVEL . <br /> NOTE-A' THE FOUNDATION FOR UNDERGROUND TANK(S) <br /> /CONCRETE. AS)-PALT. SHALL BE A MINIMUM OF 6' CLEAN <br /> OR CONPACTEO SOIL COMPACTED SAND. OR 6' OF 3/4' PEA <br /> GRAVEL. <br /> NOTE'BI ' TANK(S) INSTALLED IN AN AREA THAT IS <br /> SUBJECT TO HEAVY VEHICULAR TRAFFIC <br /> SHALL HAVE A PROTECTIVE COVER OF 18' <br /> m ��J� , ,�,.� ��� CLEAN COMPACTED SOI L W 1 TH EITHER THER 6' <br /> W W ��JCJ OF REINFORCED CONCRETE. OR 8' OF <br /> F F' IL © ASPHALT PAVING. IF COMPACTED SOIL IS <br /> OZ �� ' ���� < TO BE THE ONLY COVER IT SHALL BE A <br /> �(`� �(J <br /> MINIMUM OF 36' DEEP. <br /> NOTE'B2' TANK(S) INSTALLED IN AN AREA NOT <br /> SUBJECT TO HEAVY VEHICULAR TRAFFIC <br /> �(`��� ... '•. .... .., PROTECTEDSHALL QG WITH <br /> EITHER 2OF <br /> CLEAN COMPACTED SO SOIL COVEREDBY4- <br /> THICK REINFORCED CONCRETE OR 6" THICK <br /> CROSS SECTION OF EXCAVATION ASPHALT PAVING. <br /> NOTE'Clo SINGLE TANK INSTALLATION: MINIMUM OF <br /> C`� 12' FROM THE OUTSIDE EDGE OF TANK TO <br /> THE INSIDE EDGE OF THE EXCAVATED <br /> �(J ® ® — O OPENING. <br /> ® ® C`) <br /> �J� NOTE-C2' MULTIPLE TANK INSTALLATION: SAME EDGE <br /> DISTANCES AS SINGLE TANK INSTALLATION. <br /> AND A MINIMUM OF 12" FROM OUTSIDE <br /> EDGE OF THE TANKS . <br /> C� 0 NOTE'O' THE MINIMUM DISTANCE FROM THE OUTSIDE <br /> NOTE'C2'1 I_ ( NOTE'O' 6NOS OF THE TANK(3) <br /> TO THE INSIDE EDGE <br /> .�� OF THE OPENING 3HALL DE A MINIMUM OF <br /> 12' <br /> PLAN AT ALILTIPLE TANK INSTALLATION <br /> PAGE 1 OF 2 <br />