_REVISION - M1980244 (27) - Laserfiche WebLink

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Phax IVb N'rekly tiummary No. 2 Page ? 003-?3U? • I ~?0 were drpluv~d. seamed, and tested by Poly-Flex. Destructive fusion seam samples Df~-33 through \mes continued placrntent ol'Stntcutral Fill ISF) in the Phase IVb area. :\mes pluccYl SF at the Phase IVaIVh tie-in and alxnr the Yhase IVb sump. Ames nlsr~ continued slope recontuuring in the Phusr IVb area on Substation Hill. on the notthem PSSA slope. in the PSSA Iluor. on Chicken hawk Hill. in the PSS.4 b1'cst 1-:nd Brnn, and on the Phase 111 ore slope. Ames also placed SI~ into 1'(i-d91 and l iNK-1 j. Ames continued constntction of the leak Detection Trench lLU'f) in Phase. IVb along the North slope. of the PtiSA. Ames constructed approximately d00 feet of LDT. :\mes amtinurd excavation oC the interior anchor trench along the Northcm limit oC Phase IVb PtiSA in prrparttion for geumrmbrnne deployment. Ames exrtvnted approximately 1,200 Pert ul' anchor trench. :Ones resumed placement of Concrete Plug fC'1') concrete into "Deep ShatY' UCi-d93. r\mes placed three fret of concrete in accordance with IFC Drrwing I ~. Detail 1. ,tares placed Centrntrd Racklill (CR) at UG--{9:, by tapering the workings and placing 7 fret of CR in accnrdnnce with IFC Drawing 12. Detail 1. • I'ii;ise IVc Mlle] continued placement of Coarse Shalt Rackfill (CSBj into "Ueep" wrdergmund working UG-270. \mes resumed placrntent ul' Concrctc Plug LCP) concrete into "Deep ShafL;" UCi-270 and L'G-27~. Ames placed three feet of concrete in accx+rdancc with IFC Drawing 12. Detail I. .Ames continued placement of Select Structural hill (SSF) into UG-270, UCi•28G. and UG-291. Ames constructed a gengrid cap over LINK-09. :\mes placed hvo layers of geogrid in accordance with the drawings and sprcilicntions. Field \lonitoring and Testin~,4cti~ hies Golder uhsened constntctiun activities associated with Phase IV rurthwurl.~. All construction materials and soil materials placed wen verified as suitable, and constnrction methods were in accordance with project sprciticatiuns. Removal of uccrsized and deleterious material from all till arras was ohscn•ed. Golder obsencd Structural Pill (SF) placement in Phase IV tier materials. lift thickness, moisture content, and campactive etlbrt. (iulder obscned placement ul' SLP in Phase IVb fur subgradr preparation. thickness, contpnction, nwisturr content. and ntatrrials. (iulder conducted thirty in-situ density and moisture content tests to • ~rril} ~I F placed complied with the specifications. Golder observed 19 depth verification tests ~erAmned by :\rnrs. I )h-t,t,. ,ren• m;rrkcd. rrm,ne.l. and tested rn.,.,eew k,,, .. ~ Golder Associates Inc.