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Sector 3 Beach & Dune Restoration Project Attachment 1 to Change Order No . l <br /> ( 1 ) Upon determination tha4 the first fepr-esentative sttrfae. e gr-ab sample is non <br /> eempliant, <br /> at minimum , five ( 5 ) additional r-andem suffaee gr-ab samples will <br /> be tLCICCCYananalyzed . i the additional <br /> samples afe non omp iant the <br /> additional safnples will be ta4ien a4 25 foot spaeings in all difeetions , <br /> deser-ibedabove . <br /> ' ilafeas of non p i <br /> iant ii <br /> r <br /> ( 4 ) The total squar-e feotage will be detefmined, <br /> ( 5 ) The site map and cmalysis will be ineluded in the Engineef ' s daily Observatto <br /> ( 6) This method will also be used to test r-emediated afeas , <br /> Go <br /> The GONT-PlmkGTOR <br /> shall e. 0atifl Cetts!) manite7 the horizontal and Nreftie <br /> b positioning <br /> appr-eved by the C; OtNT-Y . A Differential Global Positioning <br /> System (DGPS�� <br /> hofizontal positioning eqictipment shall maintain �& of E0 feet ( E) r- be4ter-) . <br /> eut depth shall be meastir-ed by an appfepfiale depth meastir-ing deviee . The etA depth <br /> positioning deNrice shall maintain a Nzeftical aeeur-aey of EIA . 5 4�aet (of bet4ef) and have <br /> the tide measufed using a tide staff or- eleetf enie ga-ttge in the Nrieiaily of the aetive bofFo <br /> site where the CONTRACTOR shall have the ability to r-etr-ieve the tide da4a on a feal <br /> Citime basis . <br /> i m <br /> as Theeleetr-anie sit ' oning , , , depth monitoring equipme t and th.e <br /> . <br /> 6r tide ele3vration and. <br /> loeation , depth cor-feeted _ <br /> refefeneed to NANIP and be maintained using an inter-val of two (2 ) Miflu <br /> , shal. 1. <br /> for- eaek prin�ed 474x - A pfinted and a digital file (in ASCII fbr-mat) eepy of the posi <br /> /'t 4 shall be <br /> pfovided <br /> to the En Finer as pai4 of the daily r-epaft . The GONTRAG <br /> shall pfepafe-a-plot of the data that ineludes the State Plane Goer-dinate gfid systern <br /> the borrow afea limits . The feffnat of the plo! shall be subjeet to approval by <br /> ENGINEER . No execmration shall take plaee outside of the beffew afea limits (hofiz <br /> and vei4ieal lifnits) as shov,% on the _ b <br /> Additionally ,in The loeatien data of exeavation operations shall be feviewed <br /> by the on boafd <br /> E�ieava4iofblPr-edge Operator- on a continuous basis an r-eviewed by the CONTRACTO <br /> and Superintendent of Site Representative daily . The GONT-RACT- OR' s Super-intend <br /> pfoblem of diffieulty aFises with the &ieava�ion epefatiofts . The daily report shall ine! <br /> the leeation of the out in State Plane eoordinates and tke eut depth . the da4y <br /> r-epeft shall inelude an assessment of the quality and Nzolume of material emeavated . <br /> X H_ The CONTRACTOR' s inspector/beach personnel are required to continuously visually <br /> monitor the material during placement . An assessment will be made during placement at a <br /> minimum of once every hour. This assessment will consist of handling the material to make sure <br /> it is predominantly sand and noting the physical characteristics . If the material is deemed <br /> Page 22 of 26 <br /> March 16 , 2010 <br />