Laserfiche WebLink
Boring Log: MW-4S/P <br />Page 1 of 1 (A. C Environmental rAisk Services, Corporation <br />1600 Riviera Avenue, Suite 310 <br />-It Walnut Creek, CA 94596 <br />tifter- 925 938.1600 <br />Date: 2/25/2009 Logged By: Tyson Fulmer Well Specifications <br />Location: Bulk Commodity Terminals, Stockton, CA Elevation <br />GSE: TOC: <br />Depth to Water <br />Initial: ft. Static: 7 ft. <br />Total Well Depth: 25.5 ft. <br />Lat.: Pending Long: Survey <br />PVC Diameter: 2" PVC <br />Screen Interval: MW-4S: 20-25, MW-4P: 7.5-loft <br />Screen Slot Size: 0.010" <br />Client: Port of Stockton <br />Drilling Co.: Precision Drilling <br />Drilling Method: 8" Hollow Stem Auger Driller: Chad <br />Well Sand Filter: 2/12 Monterey Well Seal: Bentonite <br />Grout Materials and Method: Neat cement/Tremie <br />Completion: Flush mount with box <br />Groundwater Sampling Method: NA <br />Soil Sampling Method: SPT Sampling Depth, bgs (ft) 4D <br />.1-0- 3 o <br />co Soil Sample Saturated Zone USCS Graphic Log r Material Description Well Diagram <br />MW-4P MW-4S <br />- <br />- <br />- <br />- <br />5 — <br />- <br />_ <br />_ <br />10— <br />_ <br />- <br />_ <br />_ <br />15— <br />- <br />_ <br />_ <br />- <br />25— <br />_ <br />- <br />_ <br />_, <br />\\ \ <br />\ <br />CL <br />A <br />Silty clay (CL) very dark brown, roots, grass, organics, 30% silt, soft, medium <br />plasticity, damp - <br />. .— ._. <br />':-.=':•• ---• <br />k <br />. — . <br />" <br />k <br />k <br />_ /•))/ <br />'c< i <br />\ <br />k <br />\ <br />Hand auger upper 5' <br />Push SPT sampler <br />switch to Cal-modified <br />to get <br />continuous sample @5' <br />\ <br />\ V <br />\ \ ML <br />\\\ <br />_ Sandy silt (ML) dark yellowish brown, 40% sand, poorly sorted, soft, damp, - <br />decrease in sand content at 5' bgs 20% sand <br />- <br />- - <br />_ _ <br />_ <br />2 <br />32 <br />\ \ <br />, <br />\v \\\ <br />\ \\. <br />A \, <br />tinyiii <br />CL <br />( <br />7 <br />A <br />r/ <br />sampler <br />Silty clay (CL) black, medium plasticity, 20% silt, soft, organic content increases _ <br />with depth from 7-10' bgs, wet _ <br />Organic rich peat layer 8.5-9' <br />High plasticity reddish grey clay at 10.5', trace organics _ <br />_ <br />- <br />- <br />k <br />II <br />k <br />1 <br />... —•.. <br />- —••• .• .—.... <br />.. —..• -- • —• <br />. <br />k <br />k <br />I <br />.- • ... <br />.- <br />... <br />.••• <br />.:• <br />..7 <br />-5 <br />_, <br />2 <br />4 \ <br />\ ,..., ML <br />::. ..:::. <br />k:,,,,,N <br />Sandy silt (ML) dark reddish brown, 30% sand, soft <br />- - <br />. <br />20—\ <br />2 <br />2 <br />4 <br />3 <br />5 <br />\\ <br />.\,.\\ <br />\\ <br />V <br />\ \\ <br />\ \\\• • • • ••• :. .• • •• :. <br />.. . . <br />...• :::.: <br />• . <br />•• • ... .• <br />:•'• :• ..; .. <br />• <br />* <br />Silty sand (SM) dark greenish gray, 20% silt, grain size increases with depth, very <br />':- fine-grained to medium-grained - -.• :. :_ - <br />.. .— _ <br />Poorly sorted at 20 bgs <br />- <br />• <br />.. :.- _ <br />f: _ _ <br />CL <br />Clay silty (CL) Dark greenish grey, 20% silt, medium stiff <br />Total Depth: 25.5 ft.