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l <br />February 14, 2007 <br />Mr. i?avid King <br />I,&A Job No. 6A096 <br />Page 2 <br />per minute a►iaimum, or equivalent hammas. Refusel is defined as "at least 25 seconds of <br />continuous driving for one inch of pile penetration". <br />We undecstand that you also plen to constcuct a welkway rlong thc back of the new 6outie. The <br />setback of this walkway from stcep slope may also be reducc w 5 feet if runoff over this walkway <br />does not create a concentrated flow onto the slope. This may be ac6ieved by using permeable <br />PevinB blocks to con.struct the walkway. If the walkway is W be constructed with an impetvious <br />surface, [unotiover the walkway should be collected intn a catch basi� end safely discharged into <br />a suitable stormwuter disposel facility. <br />Plcase call if you have eny quesdons. <br />Yours very truly, <br />LIU-� SSOCIA �ES, INC. <br />J'�,i• . J , �. ' � _�� <br />y� .. . � <br />' ��'L��; "? , ��_ ��' �-•� �--�-•-^-- � <br />�� <br />t�, 'r.�,`.; . _ ]. S. (]ulian) Liu, P6.D., P.E. <br />' :Y'�; ; •'�. : � Consulting Geotechnical Engineer <br />��rr,�,�;,; ,`s^�. <br />_n, '� <br />, .._ il' il ��no^ , <br />,.,` __..-- ---� - I <br />LIU & AS50CIATES, INC. <br />