Laserfiche WebLink
F. <br /> �r..w <br /> f <br /> grade.rade. A cast-aluminum utility <br /> bentonite-cement Slurry <br /> box with a PVC apron was placed over the we'll headeand <br /> This set <br /> f . <br /> in concrete flush with the surrounding road <br /> €, box has a watertight seal to protect against ,dace-water <br /> infiltration and requires a specially designed wrench to <br /> the <br /> open. This design discourages vandalism and reduces <br /> of accidental disturbance of the well . The <br /> possibility <br /> locking well cap also protects against unauthorized <br /> "? disturbance of the well . <br /> a: <br /> 2.3 rroursdlt.r 5a <br /> Followinq ars initial water-level measurement, the well <br /> was developed by surging with vented PVC surge blocks and <br /> pumping. A clean, disposable Teilon bailer was used to <br /> obtain a sample from the surfaces of the water in the well . <br /> A strong product odor was detected in the well , and the <br /> Prior to sampling, approximately 3 <br /> -, water surface was foamy• allons was purged <br /> ! _ well volumes of water (approximately 55 g ) <br /> from the well using a submersible pump. The purged water <br /> was placed in a 55-gallon Department of Transportation 17-E <br /> drum and left onsite for temporary storage. <br /> Following groundwater recovery to static conditions, <br /> i <br /> the formation water in the well was sampled using a new <br /> as tr <br /> disposable Teflon bailer. The water sam�awviaisansferred <br /> into laboratory-cleaned, 4.0-milliliter gss <br /> preserved with acid, and sealed with Teflon-lined lids. The <br /> sample was then labeled and immediately <br /> place in iced <br /> storage. A Chain of Custody Record was initiated by the <br /> geologist and accompanied the samples to Mobile Chem Labs, <br /> Inc. A copy of the Chain of Custody Record is included in <br /> Appendix A of this report. <br /> ROGER EOOTT ASSOCIATES, INC. <br /> -4- <br />