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a TRAFFIC-RATED WELL BOX <br /> a RAISED FROM SURROUNDINGS <br /> m <br /> v <br /> N 3-WAY"T'FITTING VALVE <br /> v CONCRETE <br /> a <br /> GROUND SURFACE <br /> EXISTING GRAVEL BASEROCK <br /> V/ / UNDISTURBED EARTH <br /> 1'PVC CASING <br /> V7 /i !�• <br /> g <br /> 1/4'TEFLON TUBE <br /> w <br /> a THICKNESS VARIES BASED NEAT CEMENT GROUT WITH 5%BENTONITE <br /> ON PROBE DEPTH. EXTENDING FROM TOP OF DRY GRANULAR <br /> g REFER TO TABLE 4 BENTONITE TO 1 FOOT BGS <br /> w �! <br /> w <br /> a <br /> ° �•. DRY GRANULAR BENTONITE EXTENDING <br /> a <br /> 1-FOOT ABOVE SAND <br /> c <br /> m <br /> g 1-FOOT INTERVAL <br /> No.3 MONTEREY SAND EXTENDING <br /> M FROM 6-INCHES BELOW PROBE TIP TO <br /> TO 6-INCHES ABOVE PROBE TIP <br /> 1-FOOT INTERVAL <br /> j HYDRATED BENTONITE EXTENDING FROM <br /> -/ TOP OF DRY GRANULAR BENTONITE TO <br /> STAINLESS STEEL DEPTH 6-INCHES BELOW SHALLOW <br /> SAMPLE PROBE TIP PROBE TIP <br /> (1 INCH) / <br /> THICKNESS VARIES BASED / <br /> ON PROBE DEPTH. <br /> REFER TO TABLE 4 DRY GRANULAR BENTONITE <br /> % EXTENDING I-FOOT ABOVE SAND <br /> 1-FOOT INTERVAL <br /> �•..y.._, No.3 MONTEREY SAND EXTENDING FROM <br /> 1-FOOT INTERVAL ` BOTTOM OF BOREHOLE TO 6-INCHES ABOVE <br /> PROBE TIP <br /> STAINLESS STEEL SAMPLE PROBE TIP(1 INCH) <br /> f— 3'DIA. ------ INSTALLED 6-INCHES ABOVE BOTTOM OF <br /> BOREHOLE <br /> NOT TO SCALE <br /> FIGURE 4 <br /> TYPICAL SOIL GAS PROBE <br /> CONSTRUCTION DIAGRAM <br /> PACIFIC GAS AND ELECTRIC COMPANY <br /> FORMER LODI MANUFACTURED GAS PLANT <br /> LODI,CALIFORNIA <br /> ERRA PACIFIC GROUP <br /> Environmental Engineering,Consulting,and Construction <br />