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<br />z <br />2. Hydraulic pressure testing of the intact rock will be performed to <br />measure the rock permeability. A single packer positioned at the top <br />of the rock will be used. Measurement of the static water level in <br />the rock will be made during test. <br />Piezometer Installation <br />C 1. A standpipe-type piezometer, using 1 1/2 inch PVC oipe, will be <br />used. <br />(~ 2. A screened or slotted tip of approximately S to 10 feet length <br />I- will be used. The slotted length will be surrounded with a well- <br />graded sand and a bentonite seal placed above and below it. <br />~. 3. The location of the slotted length will be selected by the field <br />engineer. If there are unusually high pressures and/or high perme- <br />ability in [he rock, the piezometer will be set in the rock. <br />If not, the piezometer will be set in the alluvium over [he most <br />pervious interval. <br />L <br />I. <br />l._ <br />~~`~11~ ~1~~lDltl <br />