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<br />Gold Hill hiiil Adequacy Review Responses July 18,1995 <br />weld area to be tested is wet with a soapy water solution and the vacuum box is placed over the wetted <br />area. A bleed valve is dosed and vacutmi valve is opened. and the box is checked to melee store that a <br />leak tight seal u created between the geomartbrene end box. The teat area is checked for <br />approximately 10 to ! 5 secortda et eppreounukly S pm of vacuum to see if any soap bubbles occur. If <br />no soap bubble appear, the bleed valve is opened and the box is moved to the next adjoirting Beam <br />length with approximately 3 mchra of overhtp. Petchea ere feared m a si>mler maruta. Ag ereaa where <br />soap bubbles appear wig be repaired end setrsted <br />Spazir testing is done on a geomembrrme with a that eledricagy conductive lays extntded on one aide <br />of the geomembrane. The liner is instaged with the wndtrodve lays on tfie bottom. 1Le spark beat <br />equipment is comtected to the electocagy oondtrctive layer trsirtg clamps m en earth ground. A wide <br />brass boob cormected m the teat egttipmerd is pawed over the liner sur~ce and arty pin holes wr71 <br />cause a spark which svtll trigger en alarm. The test egtriptttent includes a marlmtg system to define the <br />edge of each brash peas and boob paseee should ove>iap. What the elemt ie heard, the ktcation is <br />marked for a repair. <br />9. A sufficient number of sartd begs wtlf be on hand to Provide tututteattpted oovcage art arty <br />ttnenchored tine edge to prevent the possibihly of wind damage to the tirrcr during irnfagetiert. <br />10. e) The solid section of the underdrein pipe going through the erobertlmtmt wig be laid at a 2-paoatt <br />grade toward the valve box on the outside of the embankment <br />b) A minimum of 2-feet of fill will be placed over the uruladrairt pipe going throtrgh the embenimtent <br />end fiend compacted prior to agowing mecltmtimd compaction to resume. <br />c) All undadrein pipes wrg be laid at a mcmnum 2 percatt grade. <br />d) A valve and pump box will be mshgad ao flat the pump wtll trot cavAate. The valve end pump <br />box will be oral up so that apignge wrlt not occta during maintenance or feihm of the valve or <br />P~P• <br />