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Cambria Environmental Technology, Inc BORINGIWELL LOG <br /> 8620 Holly Drive, Suite 200 <br /> Everett,WA 98208 <br /> Telephone 425 353 6628 <br /> Fax 425 3536443 <br /> CLIENT NAME Chevron Environmental Management BORINGNVELL NAME B-6 <br /> JOBISITE NAME 9-1848 DRILLING STARTED 25-Jan-06 <br /> LOCATION 1257 West Yosemite Ave Manteca CA DRILLING COMPLETED 25-Jan-06 <br /> PROJECT NUMBER 61 H-2043 WELL DEVELOPMENT DATE(YIELD) NA <br /> DRILLER _ Gregg Drilling _ GROUND SURFACE ELEVATION Not Surveyed <br /> DRILLING METHOD Hydraulic push TOP OF CASING ELEVATION Not Surveyed <br /> BORING DIAMETER 2" SCREENED INTERVAL NA <br /> LOGGED BY R Rablainen DEPTH TO WATER(First Encountered) 22 0 ft(25-Jan-06) _ <br /> REVIEWED BY M Miller PG#6008 DEPTH TO WATER(Static) NA 1 <br /> REMARKS Cleared to Bfbq wth hand auger <br /> U F� <br /> CL p z _j w a C U a LITHOLOGIC DESCRIPTION = WELL DIAGRAM <br /> o m0 2 w O 4�-' z1L <br /> a U C7 OU w <br /> O <br /> Lo <br /> As halt 0 3 <br /> Silty SAND Tan brown, moist, 85%fine to <br /> coarse-grained sand, 15%silt low plasticity, high <br /> estimated permeability <br /> 0 B-6@5' 5- <br /> SM <br /> 10- <br /> 09 <br /> 009 13-6@1 2' <br /> 15 <br /> 12 B-6@1 6' <br /> 185 <br /> SILT with sand Olive tan,moist 70%silt 15%sand, <br /> ML 15%clay,medium plasticity,moderate estimated 200 <br /> 0 B-6@1 9' 20Npermeability Portland Type <br /> ML Sandy Brown, moist 60%silt 30%sand, 10% 21 0 IIII <br /> cla medium lasticit moderate estimated ermeabin <br /> SAND with silt Tan brown,wet,90%sand, 10%silt, low Q <br /> o SM plasticity, high estimated permeability <br /> -first water encountered at 22fbg <br /> a 0 8 B-6@2 4' T No Recovery hydropunch interval — 24 0 <br /> B-6@2 4' — <br /> o (water) 25 ________________________ 255 <br /> a SAND with silt Tan brown,wet 90%sand 10%silt low <br /> 0 plasticity, high estimated permeability <br /> � 0 B-6@2 8' <br /> SM <br /> F <br /> z <br /> 9300 <br /> _________________ ___ <br /> B-6@3 1' -_ 30 �No Recovery hydropunch interval ___ 31 0 <br /> (water) — SAND with silt Tan brown,wet 90%sand, 10%silt, low <br /> plasticity high estimated permeability <br /> a_ <br /> 0 <br /> o <br /> 35 SM <br /> Continued Next Page PAGE i OF 2 <br />