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Reference Point (RP) Reference Point (RP) <br /> Original Ground (OG) Original Ground (OG) <br /> Drill 6" die. hole <br /> V ' <br /> die. PNC pipe r <br /> S <br /> Grill 4" dia. hole <br /> 0 <br /> •d^ ' <br /> 2" dia. PVC pipe v J O <br /> 0 0 0 <br /> Drill 1/4" holes in PVC pipe o 0 <br /> v o 0 0 i <br /> O O O J( M <br /> C) Gravel size 1/4"to 3/8' 00 0 0 - m <br /> M o O O' O <br /> O O O. <br /> r - GO O N Z <br /> j O O O' <br /> N O O 01 <br /> R <br /> r 2" Min. Grovel <br /> n <br /> m <br /> 0 <br /> Threaded or GI <br /> Connection Joint _ SHALLOW HOLE (6"dia <br /> Lift Hole <br /> d N75 <br /> � tJ <br /> _� b0 <br /> Drill 1/4" holes in PVC pipe z M <br /> Grovel size 1/4"to 3/8" I o <br /> io Z <br /> 2' Min. Grovel <br /> DEEP HOLE (4"dia.) NOS" <br /> WS <br /> 1. Sleeve the hole with PVC pipe and grovel as soon as <br /> possible after drilling_ <br /> 2. Measure depth prior to release of driller_ Deep holes <br /> holes must be cleaned out by the driller. Shallow <br /> holes (42' deep) con be cleaned out with 4" auger. <br /> 3. O.K. to ploce more grovel on the exterior of the <br /> PNC Sleeve, than the minimum that is shown. <br /> 4. Use o funnel to pour water into the PVC pipe. <br /> ENGINEER: Earnest F. Smith HOLE PREPARATION (Deep/Shallow) APN: <br /> F° I by M PERCOLATION TESTS DATE: <br />