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8.B. - Page 136 5-Lot RESidential Development December 9, 2010 <br /> � � <br /> � <br /> �� <br /> 4. Raised planter beds adjacent to foundations should be provided with sealed sides and <br /> bottoms so that irriga�ion water is not allavved to penetrate the subsurface beneath <br /> foundat�ons. Outlets should be proWided in the planters to direct accurnulated irrigarion <br /> water away from foundatioD.s. <br /> 5. Due to the soil expansion potential, open areas adjacent to e�erior flatwork should be <br /> irrigated or otherwise maintainea so tbat constant moisture condi�ions axe created <br /> thraughout the year. Irrigation syste�s should be controlled to the zninimum levels that <br /> �wi11 sustafn the vegetation without saturating the soil. <br /> Geotechnicaf Obser^vation and Testing <br /> �. It must be recognized that tlze recommEndations containEd in th�s report are based on a <br /> limitEd number of bor�ngs and rely on continuity of the subsurface conditions <br /> encountered. <br /> 2. It is assumed that the Geotechnical �ngineer will be retaixaed to provide consultation <br /> during the design phase, to inferpzet thFs report during construction, and to provide <br /> construction monitoring in the form of testing and observation. <br /> 3. UnZess atherwise stated, the ter�ns "compacted" and "recompacted" refer to soils placed in <br /> level lifts not exceeding 8 incl�es in loose thickness and compacted to a mini�nuin of 90 <br /> percent of m�imEUn dry density. The standa.rd tests used to define ma7cimum dry density <br /> and field de�sity should be ASTM D 1557-07 and ASTM D 6938-07b, respect�vely, or <br /> other naethods acceptable ta the Geoteckur�ical Engzneer and juz-isdiction. <br /> 4. "Moisture conditioning" refers to adjusting the soil moisture to at least optimum moisture <br /> prior to ap�lication of compacti�e effort. If the soils are oyerly moist so that they become <br /> unstable, or if tke recomm�nded compac�ion cannof be readily achieved, dry-ing the soil to <br /> optimum moisture content or just above may be necessary. Placement of grave! layers or <br /> geotexti�es may also be necessary to help stabilize unstable soils. The Geotechnical <br /> Engineer should he contacted for recoznmendations for znit�igating unstable soils. <br /> 5. At a minimum, the fol�owing shoufd be provided by the Geotechnical Engineer: <br /> • Review of�nal gxading az�d foundation pians <br /> • Pz-o£essional observatio� dwring site preparation, grading, and foundation <br /> excavation <br /> • Oversight aft soil special z��spection duxzng grading <br /> 16 <br />