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a- € Page 5 <br /> Geological Teqhnics Ind'!" <br /> Appendix A <br /> Project No.251.2 <br /> December 20,1995 <br /> constructed by installing 50 pounds of granular bentonite that will be hydrated with tap water <br /> and be allowed to expand for a period of one hour. In the remaining annulus,neat cement grout <br /> will be installed using a slurry pump and tremie pipe. <br /> The well will be secured with a water tight locking cap encased within a traffic safe well box. <br /> Relative well collar elevations will be surveyed by a licensed land surveyor. <br /> 2.10 Monitoring Well Development <br /> Within 48 hours of well installation after well sealing materials have had time to set, each <br /> monitoring well will be developed by mechanical surging and pumping until a clear stream is <br /> obtained. All down hole equipment will be decontaminated before and between uses. <br /> Development water will be removed from the well:using either a bailer or a submersible pump <br /> and containerized in D.O.T. approved drums(labeled contents under analysis) to await proper <br />{ disposition. After development the wells will be allowed to stabilize before they are purged <br /> and sampled <br /> { <br /> I <br />