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, . ; <br /> June 3. '_0� 1 <br /> �4r. Chri; Johnson <br /> L�.A Job �o. I 1-O�fi <br /> pa�c 6 <br /> should cunsi�t uC a 1-inch-minimum. per�urated. rigid. PVC pipe. �crapped in a non- <br /> �ru�en filter fabric sock (�lirafi 1�JOtiS or equal). The bottom oT the ke)��a� trcnch and <br /> the drain linc �hould lia�'e �ufticient slope 10.` percznt minnnum) t� €encrate ilo�� b� <br /> _ra�itc. \Vater collccted in the drain linc ;hould be ti�litlined to disdiarez into a �tnnn <br /> se��er ur disposed into a infiltration trench. <br /> Rockcr�' �laterial and Construction <br /> Rock material for rocken' reconstruction sltould be hard. suund. durable and tiee ot <br /> �r�cks. Gssures and uther det'ects. The tacial stones uf the rocker `a�l, �houltd be in <br /> ncarh rectan�ular as possibla The consiruction of the rocken' <br /> complia�,c- ��ith the Standa_r������`n' Construetion Guideline; published h} the <br /> :1.;ociated Rockm Contractors. <br /> Prior to �ettin�� the base-cour;c tacial stunes. the slopine Cace oi the till emb�nl�nent and <br /> ���e �;���ca�' trench bottom should bc lined ��'�th a la�er oi�non-"'o��» ��1ter tabric (ivlirafi <br /> ��0\S or equal). The facial stones should be stacked tightic a=ainst one another to <br /> minimize the �oids bei.�een the stones. Escessi��e opcnings should be chinked ��ith <br /> ;maller rock from behind. The fnci�l stones oFthe rucken ��all should be tilted back at a <br /> Uattcr no ste�per than 6\':1H• The rockcn' ��a11 should be con�tructed such that the facial <br /> ;tones of cach successi�e ��ui'e "ould staer�er o�er and linnh suppurted on stones of the <br /> pre�iou; courc. <br /> LItI & ASSOCIATES, INC. � ���,, <br /> (; I � � ' I <br />