(f)Activitiesonlandincludedonthecity’sacknowledgedGoal5inventory. <br />Atpresent,itisunclearwhetherornotthesubjectpropertyisaGoal5resource.Ontheone <br />hand,theapplicationaddressestheapprovalcriteriaasifitwerenotincludedintheCity’s <br />AcknowledgedGoal5Inventoryandpresentsamapindicatingthatthesubjectpropertyisnot <br />included. <br />Butonpage20oftheStaffReportweread"...thesubjectpropertyisincludedontheCity’s <br />acknowledgedGoal5inventory,pertheApril12,1978ScenicSitesWorkingPaper...". <br />However,thatworkingpaperanditspresumedmapisnotinevidence,andnowheretobefound <br />ontheCity'swebsite.Infact,noneoftheinformationaboutGoal5resourcesontheCity'sweb <br />siteincludesthesubjectproperty.Judgingfromthetitle"ScenicSitesWorkingPaper"itwould <br />indicatethatthiswasapreliminarydocument,andnotofficiallyadoptedbyCityCouncil. <br />Therefore,theResponseCommitteewilladdressthegeotechnicalhazardsofthesiteasrelevant <br />toboth EC9.6710 and EC9.8320(6). <br />ThefollowingsectionincludesresultsofareviewoftheApplicant’s <br />“GEOTECHNICAL/GEOLOGICINVESTIGATION,CAPITALHILLPUD”ofFebruary6, <br />2017(preparedbyBranchEngineering)andanaddendumsubmittedonMay30,2017.The <br />reviewwasconductedbyGunnarSchlieder,Ph.D.,CEG,whoalsopresentsadditional <br />informationinhisreportincludedinAppendixC. <br />1.ChallengingtheaccuracyandcompletenessofApplication’sReport <br />AlthoughtheApplicant’sreportandaddendumwerebothstampedbyanexperienced <br />GeotechnicalEngineer(RonDerrick,P.E.)andCertifiedEngineeringGeologist(Gary <br />Sandstrom,CEG),atleastonefundamentaltechnicalerrorandseveralshortcomingsin <br />methodologyareincludedinthetwodocuments,raisingquestionsabouttheaccuracyand <br />completenessoftheirinvestigationsandreporting.Themostfundamentaloftheerrorsthatthe <br />twoauthorsstateisintheaddendum(p.1,paragraph5):“Thetestpitsandobservationsshowed <br />themajorityofthedevelopmentsitewasunderlainbythestablevolcanicrockmaterial.”Tothe <br />contrary,theirtestpitlogsindicatethattheyidentifiedtherocktypefoundintheirtestpitsas <br />sandstone,whichisasedimentaryrock.Whereastoalaypersontherocktypepresentatthesite <br />maynotappeartohavesignificantinfluenceonthesafetyoftheproposeddevelopment, <br />professionalsinthefieldshouldrecognizetheimportanceofthepresenceofbeddedsedimentary <br />rocktypesvs.massiveigneousrockbodiesunderlyingthisridge.ThisisaddressedfurtherinDr. <br />Schlieder’sreportinAppendixC. <br />Inadditiontomisidentifyingtherocktypeunderlyingtheridgeatthesiteoftheproposed <br />CHPUDintheiraddendum,BranchEngineeringpurportstohaveusedASTMD-2488toclassify <br />thesoilfoundinthetestpitsaccordingtotheUnifiedSoilClassificationSystem.Theyidentify <br />allsoilsatthesiteaseitherOrganicSilt(OL)orSiltySand(SM).However,theirownlaboratory <br />testingindicatesthatthreeofthefoursamplesanalyzedviatheFreeSwellTesthave“high” <br />swellvalueswhensubjectedtomoisture,whichindicatesthatthesamplescontainasignificant <br />amountofexpansiveclayminerals.SuchsoilsarehardlyeverSiltySand,butrathershouldbe <br />classifiedaseitherClayeySand(SC)orevenLeanClay(CL)orFatClay(CH).TheUSDASoil <br />110 <br /> <br />