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mod e r n modern WeldiN, Comp " 'J <br />FABRICATORS OF METAL PRODUCTS <br />INSTALLATION PROCEDURES FOR GLASTEEL UNDERGROUND <br />STORAGE TANKS <br />CAUTION: N.F.P.A.-30: TIGHTNESS TESTING REQUIREMENTS: 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 I AND <br />II) SHALL HAVE THE PRIMARY (INNER) TANK TESTED ... USING AIR AT <br />3 TO 5 PSIG OR VACUUM AT 5.3 IN. HIS. THE PRESSURE OR VACUUM <br />SHALL BE HELD FOR ONE HOUR. CARE SHALL BE TAKEN TO INSURE <br />THAT THE INTERSTITIAL SPACE IS NOT OVER PRESSURIZED OR <br />SUBJECTED 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 EQUIPMENT." <br />HOLE SIZES FOR INSTALLATION OF TANKS IN STABLE SOIL CONDITIONS: <br />GENERAL NOTES: <br />I. 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 REOUIRMENTS 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 LIOUID LEVEL WITHIN THE TANK SHALL NOT EXCEED THE COMPACTED <br />BACKFILL LEVEL. <br />�c <br />< <br />CONCRETE. ASHPALT, <br />OR COAPACTEO SOIL <br />.Cl <br />wed e, <br />pL � % r <br />°Ml` ` _) , <br />CROSS SECTION OF EXCAVATION <br />C2 -1 1I -NOTED' <br />PLAN AT ALILTIPLE TANK INSTALLATION <br />0 <br />NOTE'A' THE FOUNDATION FOR UNDERGROUND TANKS) <br />SHALL BE A MINIMUM OF 6" CLEAN <br />COMPACTED SAND. 6' OF 3/4' PEA GRAVEL. <br />OR CLEAN COMPACTED SOIL <br />NOTE -81' TANK(S) INSTALLED IN AN AREA THAT IS <br />SUBJECT TO HEAVY VEHICULAR TRAFFIC <br />SHALL HAVE A PROTECTIVE COVER OF 18' <br />CLEAN COMPACTED SOIL WITH EITHER.6' <br />OF REINFORCED CONCRETE. OR 8" OF <br />ASPHALT PAVING. IF COMPACTED SOIL IS <br />.TO BE THE ONLY COVER IT SHALL BE A <br />MINIMUM OF 36" DEEP. <br />NOTE'B2" TANK(S) INSTALLED IN AN AREA NOT <br />SUBJECT TO HEAVY VEHICULAR TRAFFIC <br />SHALL BE PROTECTED WITH EITHER 24' OF <br />CLEAN COMPACTED SOIL COVERED BY 4' <br />THICK REINFORCED CONCRETE OR 6' THICK <br />ASPHALT PAVING. <br />NOTE'CI' SINGLE TANK INSTALLATION: MINIMUM OF <br />12' FROM THE OUTSIDE EDGE OF TANK TO <br />THE INSIDE EDGE OF THE EXCAVATED <br />OPENING. <br />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 />NOTED' THE MINIMUM DISTANCE FROM THE OUTSIDE <br />ENDS OF THE TANK(S) TO THE INSIDE EDGE <br />OF THE OPENING SHALL BE A MINIMUM OF <br />12' <br />0 PAGE I OF 2 <br />