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241 I <br /> i <br /> 6" THK CONCRETE <br /> PAD, FLUSH WITH GROUND SURFACE <br /> 24" + <br /> STANDARD TRAFFIC VAULT BOX <br /> 12" <br /> ?-- 12` <br /> PLAN <br /> 6"THK CONCRETE PAD <br /> EXISTING GRADE <br /> STANDARD TRAFFIC VAULT BOX <br /> LOCKING WELL CAP <br /> HOLLOW STEM AUGER BOREHOLE <br /> (6-8 INCH) <br />• GROUT SEAL <br /> 2-INCH BLANK PVC CASING, <br /> FLUSH THREADED SCHEDULE 40 <br /> BENTONITE PELLET SEAL <br /> 2-INCH SLOTTED PVC CASING, <br /> FLUSH THREADED SCHEDULE 40 <br /> CLEAN IMPORTED SAND <br /> PVC BOTTOM CAP <br /> SECTION NOT TO SCALE <br /> Figure A-l.. Typical Monitoring Well Construction <br />