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amec <br />excavate to the liner surface along; the entire extension length, thereby nummiiing the risk of <br />?lamag?ng the geomembrane liner. At the extension pipe - existing ripe transition point. the <br />extension pipe should he trenched thm n to ?N ithin a few inches of the existing! Fertiary ripe. Care <br />must be taken it) avoid damaging the gcomembrane liner. In general, machine cxca%ati n should <br />he limited to ?yithin 12 inches of the stir\eNed Leomembrane liner suriace (as sho\+n on the as- <br />built drawings). It is also important to note that tile pipes do not need to he t:onnected. ho,t%c?er <br />end cars should he used to prevent U< •f from entering the extension ripe. <br />?trw&*R' ?CT! -7 Z-10od P TwUq pow to ode dped <br />i <br />r' P y <br />%okitim oftptuomn halo pqn. <br />Fiq-tire I Extension of 4" I'crtiarN pipes <br />---- 3cw* upper 4 to 9 inches along / 4" Terti ary pipe oda?sion <br />al igmtent of new pipe / <br />? I ..,.,? ? ' i 1i1T1T1111T11(i(1111?f l1Tll1 <br />AC fi1\\ 1 v <br />IVF 'IraTrh doHnto µitluii a <br />\ fc?o int hm., 01 thecxi±nnu <br />Not& Machne cowevahm abould be limited to <br />Ur ailing 4" Tertiary pipe within 12 inehm of dw aeom.mbrno line. <br />Hand acavatioo madboda dtaild be toed b <br />roach dw -Mina Terdary P'Pe. <br />Figure 2 I•ertiarr pipe extension detail <br />?'PHIiJt l;TS7l.l . • t: }.I +vm? Tr?rnba J 4an:rr; h•xyt•.p?arr i Jramn.r• u•Y.* stn 2