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1.• • <br />modern [rocern :kldirq compo/ <br />FABRICATORS OF METAL PRODUCTS <br />[ NSTA AT [ ON PRO FnIJRF�2 FOR Q1 A T FI (( UND R RO Nn <br />STORAGE TANK <br />CAUTION INP.P A -30 TIGHTNESSTIQHTNESS TESTING REQUIREMENTS T IS TIIE <br />RESPONS181LITY OF THE OWNER TO PROVIDE THE FOLLOWING TESTS <br />PRIOR TO COVERING THE TANK(S.) <br />_N.F P A -30' -8 3.1 'SECONDARY CONTAINMENT TANKS (TYPE 1 AND <br />II) SHALL HAVE THE PRIMARY (INNER ) TANK TESTED ACCORDING TO <br />2-8.3 AND THE INTERSTITIAL SPACE (ANNULUS) TESTED USING OR <br />VACUUM AT 5.3 IN. HG. THE .. VACUUM SHALL BE HELD FOR ONE <br />VACUUM.HOUR. CARE SHALL BE TAKEN TO ENSURE THAT THE <br />INTERSTITIAL SPACE IS NOT OVERPRESSURED OR SUBJECTED TO <br />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 />HOLP S_I z_E-S FOR INSTALLATION OF TANKS IN STARLP SOIL CONDITIONS: <br />QENERAL 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 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 LIQUID LEVEL WITHIN THE TANK SHALL NOT EXCEED THE COMPACTED <br />BACKFILL LEVEL. <br />:ONCRETE. ASHPALT. <br />OR COAPACTEO SOIL <br />�(J .NOTE'CI.(J <br />< <br />W W U <br />w I - <br />CROSS SECTION OF EXCAVATION <br />0 <br />C2' �- NOTE'D' <br />FLAN AT AULTIP-LE TANK INSTALLATION <br />lO <br />QW <br />Z <br />NOTE'A' THE FOUNDATION FOR UNDERGROUND TANKISI <br />SHALL BE A MINIMUM OF 6" CLEAN <br />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 />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($) TO THE INSIDE EDGE <br />OF THE OPENING SHALL BE A MINIMUM OF <br />12' <br />PACE I OF 2 <br />