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Chow Engineering, inc. <br />7770 Pardee Lane, Suite 100 <br />Oakland, CA 94621 <br />Phone: (510) 636-8500 <br />Fax: (510) 636-8544 <br />Surface elevation: <br />CE Project Number: 99R-4041 <br />Location: 32727 Corral Hollow Road <br />Tracy, California <br />Explor. GeoServices <br />Dan! Renan <br />PROPOSED WELL CONSTRUCTION <br />MW-6B <br />Start Date: <br />Completion Date: <br />Drilling Co.: <br />Geologist/Logger: <br />Depth <br />(ft bgs) <br />Sample <br />Interval Blows <br />Well Strut <br />Construct Symbol Description <br />0 --. <br />=— <br />=_ <br />=_ <br />=_ <br />=_ <br />=_ <br />=_._ <br />=_ <br />_ <br />Monitoring well cover ('christie box') <br />Locking casing cap <br />Grout surface seal <br />— <br />_ <br />----....------------- <br />'-'\,,/1------------, <br />— <br />_ <br />30 — <br />_ <br />_ <br />= <br />= <br />:—.=-- <br />— <br />= — _ <br />= — <br />= <br />= --, — <br />_ <br />= <br />_ <br />= <br />= <br />— ,_....— <br />_=-- <br />= — <br />— <br />=— .. <br />.. — <br />o <br />o <br />o <br />bentonite <br />11 <br />- <br />sand <br />.. <br />. Well screen <br />.. ..‘NWell screen <br />.. <br />_ <br />— <br />— <br />— <br />35 — <br />— <br />— <br />_ <br />— <br />40 — <br />— <br />— <br />_ <br />— <br />45 — <br />— <br />— <br />_ <br />— <br />50 — <br />55 <br />— <br />— <br />_ <br />- <br />— <br />— <br />60 <br />— _ <br />— <br />— <br />— <br />— <br />— <br />— <br />— <br />— <br />_ <br />70 <br />- <br />_ <br />— _ <br />_ <br />TO <br />cap Depth to be determined by field conditions as directed by <br />Geologist on site — —