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modern weld„ 19company <br /> ` modern <br /> Ri,C!UCT <br /> INSTALLATION PROCEDURES FOR UNDERGROUND STORAGE TANKS <br /> CAUTION : N . F. P. A . -30 : TIGHTNESS TESTING REQUIREMENTS : IT IS THE RESPONSIBILITY <br /> OF THE DINER TO PROVIDE THE FOLLOWING TESTS PRIOR TO 'COVERING THE TANK(S) . <br /> N.F.P.A.-30; 2-7.3: "Underground tanks and piping, before being covered, enclosed, or <br /> placed in use, shall be tested for tightness hydrostatically, or <br /> with air pressure at not less than 3-PSI, and more than 5-PSI." <br /> H.F.P.A.-30; 2-7.4: "Before the tank is initially placed in service, all leaks shall be <br /> corrected in an acceptable manner." <br /> N.F.P.A.-31 "Standard for Installation of Oil Burning Equipment." <br /> NOTE: YOUR STATE OR LOCAL CODES MAY REQUIRE PROTECTED PIPING SYSTEMS? <br /> TANK HANDLING: <br /> UNDERGROUND TANK(S) ARE SUPPLIED WITH EITHER ONE OR 740 INSTALLED LIFTING LUGS, DEPENDENT ON TANK SIZE. <br /> REFER TO SPECIFIC TANK DRAWING TO DETERMINE THE EMPTY LIFTING WEIGHT OF THE TANK. <br /> SEE "FINISHING INSTRUCTIONS", ITEM NUMBER 7: FOR APPLICATION OF LIFTING LUG COVERS TO "GLASTEEL" TANKS PRIOR <br /> TO BACKFILLING OR COVERING THE TANK. <br /> DO NOT DROP OR ROLL TANK(S) FROM TRUCK INTO EXCAVATED OPENING. <br /> HOLE SI7_ES FOR INSTALLATION OF TANKS IN STABLE SOIL CONDITIONS: <br /> GENERAL NOTES: <br /> 1 . THE EXCAVATED OPENING FOR INSTALLATION OF UNDERGROUND TANK(S) SHALL BE SUITABLY EXCAVATED (REFER TO OSHA, <br /> STATE, OR LOCAL CODES GOVERNING OPENINGS). LEVELED AND BACKFILLED PER THE FOLLOWING INSTRUCTIONS. <br /> 2. REFER TO THE "FINISHING INSTRUCTIONS" FOR SPECIAL REQUIREMENTS PRIOR TO BURIAL OF "GLASTEEL" TANKS. <br /> 3. TANKS SHALL BE COMPLETLY EMPTY DURING HANDLING OR INSTALLATION TO PREVENT UNDUE STRESS TO THE TANK(S) . <br /> 4. IN THE EVENT A TANK MUST BE INSTALLED, FILLED WITH PRODUCTS, PRIOR TO BACKFILLING, THE LIQUID LEVEL WITHIN <br /> THE TANK SHALL NOT EXCEED THE COMPACTED BACKFILL LEVEL. <br /> CONCRETE, ASPHALT, <br /> 7R COMPACTED SOIL NOTE"A". THE FOUNDATION FOR UNDERGROUND TANK(S) SHALL BE A <br /> MINIMUM OF 6" CLEAN COMPACTED SAND, 6" OF 3/4' PEA <br /> NOTE"C1" GRAVEL, OR CLEAN COMPACTED SOIL. <br /> C14 NOTE"B1". TANK(S) INSTALLED IN AN AREA THAT IS SUBJECT TO <br /> m -, HEAVY VEHICULAR TRAFFIC SHALL HAVE A PROTECTIVE <br /> �I� N COVER OF 18" CLEAN COMPACTED SOIL WITH EITHER <br /> g g a iL 6" OF REINFORCED CONCRETE, OR 8" OF ASPHALT <br /> PAVING. IF COMPACTED SOIL IS TO BE THE ONLY COVER <br /> IT SHALL BE A MINIMUM OF 36" DEEP. <br /> H <br /> 0 <br /> Z NOTE"32". TANK(S) INSTALLED IN AN AREA NOT SUBJECT TO HEAVY <br /> CROSSECTION OF EXCAVATION VEHICULAR TRAFFIC SHALL BE PROTECTED WITH EITHER <br /> ` \ 24" OF CLEAN COMPACTED SOIL, OR 18" OF CLEAN <br /> COMPACTED SOIL COVERED BY 4" THICK REINFORCED <br /> wI CONCRETE OR 6" THICK ASPHALT PAVING. <br /> o o <br /> NOTE"C1". SINGLE TANK INSTALLATION; MINIDIUM OF 12" FROM THE <br /> LU <br /> Biu g OUTSIDE EDGE OF TANK TO THE INSIDE EDGE OF THE <br /> m <br /> EXCAVATED OPENING. <br /> o ' NOTE"C2". MULTIPLE TANK INSTALLATION: SAME EDGE DISTANCES <br /> � ( AS SINGLE TANK INSTALLATION, AND A MINIMUM OF 12' <br /> FRCM OUTSIDE EDGE TO OUTSIDE EDGE OF THE TANKS. <br /> N I N04-0-- NOTE"D". THE MINIMUM: DISTANCE FRCM THE OUTSIDE ENDS OF THE <br /> TANK(S) TO THE INSIDE EDGE OF THE OPENING SHALL BE. <br /> PLAN AT H'JLTIPI.E TANK iNSTALLATION A MINIMUM OF 12". <br /> Page 1 of 2 <br />