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<br />GRADE RING MAY BE REQUIRED <br />TO BRING MANHOLE COVERS TO <br />GRADE DEPENDING ON INSTALLED <br />DEPTH OF INCOMING DRAIN LINE. <br /> <br />." CLEAN - OUT <br /> <br /> <br /> <br />REINFORCED CONCRETE PIPE <br />( I SECTION j LENGTH 1:' S") <br /> <br />REINFORCED CONCRETE. COVERS TO BE <br />DESIGNED BY OWNER TO WITHSTAND <br />MAXIMUM LOADING THAT WILL OCCUR. <br /> <br />MINIMUM 24" DIAMETER CAST <br />IRON MANHOLE RING a COVER <br /> <br />2" VENT PER <br />BLDG. INSPEC. <br />REQUIREMENTS <br /> <br />.:. <br /> <br />.'. <br /> <br />'.:>:".':'.':'.: <br />"'.' ,-. .. <br /> <br />':: T i' C II? VENT <br />:::4"(MIN.)" <br /> <br />IFLOWLINE :T <br />BE 3"(min.IASOVE <br />STATIC WATER <br /> <br />4'-9"(MIN.) <br /> <br />FLOWLINE ELEVATION <br />HERE DETERMINES <br />STATIC WATER LEVEL <br /> <br />RUBBER WATER SEAL <br /> <br />REINFORCED <br />CONCRETE <br />~ SLAB <br />.': -1. <br />.>.:,>.~',,:,:-::',' :.~:',:::-':"".."',::, :,:'::.', " 6"(MINJ <br />' . '~ ~IPE ~1~:'a'~~6"¡.:T <br />(MIN,) <br /> <br />CITY OF SAN MARCOS, TEXAS <br />-20- <br />