Laserfiche WebLink
'e A iM r.f <br /> � a <br /> o A 5-foot long pressure transducer built by Pruett Industries, Inc_ <br /> o£ Bakersfield, California, was installed at the bottom of each well, <br /> attached to the screened PVC section above; <br /> o A 4-inch diameter Schedule 40 PVC well screen approximately ten feet <br /> in length, With 0.020 onreen size, .vas attached to the Pruett <br /> Industries Pressure Transducer And placed it the borehole. All well <br /> casing materials were steam-cleaned prior to installation; <br /> _.- 0 Blank, 4-inch diameter, flush-threaded, Schedule 40 PVC was installed <br /> from the top of the screc-�`to the ground surface. A cap was placed <br /> on top of the casing; <br /> V A sand pack consisting of washed sand was placed in the anisulus of <br /> ;rhe borehole to a depth of approximately two feet above the top of <br /> the slotted casing; <br /> o A minimum 3-foot rack bentonite pellet seal was placed above the <br /> sand pack; and <br /> o Thn remai.nirg annular space was filled to the ground surface.-with p j <br /> a bentonite/slurry. A locking plastic crap was installed in the top <br /> of the casing below a Christi box, which was.groutpd in place at the <br /> ground surface to complete installation. <br /> t - All soil borings and monitoring weals were grouted in the presence of <br /> �e , <br /> *-� Eleanor Ratliff of the Sar. Joaquin County Local Health District Environmental <br /> Health Division. <br /> w <br /> w: <br /> SAC03.001 November 1989 <br />