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BROWN AND CALDWELL 40th Anniversary 1947-1987 <br /> CONSULTING ENGINEERS Service Excellence • Efficiency <br /> wa•♦' <br /> July 31 , 198715, <br /> U <br /> A L!G 0 1697 <br /> Mr. Warren Bolt <br /> City of Stockton ENVIRU(V''_L!VIAL HEALTH <br /> Department of Public Works FERMII%SERVICES <br /> 425 North E1 Dorado Street <br /> Stockton;Cali'fcrn-i-a-952n2 - ._ _ 017-3173-01/3 <br /> Subject: Application for Encroachment Permit for <br /> Drilling in the Vicinity of ARCO Station 2133, <br /> Located at 2908 Benjamin Holt Drive, Stockton, <br /> California <br /> Dear Mr. Bolt: <br /> Brown and Caldwell (BC) pians to drill four boreholes and install, <br /> develop, and sample four monitoring wells in the locations shown on <br /> Figure 1 . This work is being performed as part of an investigation <br /> for the subject site. Encroachment will take place in Benjamin <br /> Holt Drive and Plymouth Road. If this is a problem, drilling could <br /> take place in the sidewalks to limit street encroachment. All <br /> wells will be completed below grade. Locking, water-tight steel <br /> CNI 280 well covers will be installed at grade, flush with ground <br /> surface. <br /> The details of our anticipated encroachment are described below: <br /> 1 . Drill 4 boreholes, 12 inches in diameter, 30-feet deep. <br /> Install groundwater monitoring wells in each of the 4 <br /> boreholes. ._ - _- .—_ - - -- - _�o _ — . - - _. _ -- <br /> 2 . Each borehole/well will take approximately 8 hours to <br /> complete. <br /> 3 . All work will be performed during daylight hours. <br /> 4. Traffic will be diverted with the following items: <br /> a. Traffic barricades with flasher lights. <br /> b. 18-inch fluorescent orange traffic cones.,.. <br /> c. Fluorescent orange tape. <br /> d. Flagmen, if necessary. <br /> 723 S STREET SACRAMENTO.CA 95814' (916)444-0123 <br />