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Drilling Log <br /> FLUOR DANIEL GTI Monitoring Well MW--1A <br /> *Protect Southlanai a,1 j-i StocAtun Owner 7Ir far tIt;32d 0701,101 asci) <br /> Location 4501 N Per�hala Ave Stockton, CA _ Prot No 020;-0 0496 <br /> C O T co <br /> o En <br /> ` Descr1 tion <br /> a w m v a a U u o.o is tG7 <br /> CL a a 0 �o- (Color, Texture, Structure) <br /> o`" o m ou <br /> N @ K j Trace < 10%, Little 10% to 20%, Some 20% to 35%. And 35% to 50% <br /> 24 a silty vei v tine SAI,'D t-Itj 601 Bi own wet sti ong hydrocarbon <br /> 26 < < ,?0 6 Silty tip e SAND (3+J 7,-1) 3i cen ,h bi owr gi ay wet soft sti ong <br /> 4 5� hydrocai bon odor <br /> < < 8 ML (grades varying percentages silt and up to 10% clay) <br /> 2$ < < 40 6 (grades decreasing hydrocarbon odor) <br /> < < 7o 9 Clayey SILT 00 90) Brown gray with reddish brown staining along <br /> 30 < < Q i aot casts (<I mm) moist, slight to moderate hydrocarbon odor <br /> < < 70 <br /> 6 QtadeS to no loot Casts) <br /> 32 < < 9 ML <br /> 3g 11 Clayey SILT (30 70) Light brown gray with rust brown root casts, <br /> < c 4 most no hydrocarbon odor <br /> s (glades valytng content of clay with fine sand) <br /> 3 5 <br /> 34 < < 5 Clayey Silty fine SAND (10 20 70) Brown, moist/wet soft, no <br /> 3 6 SM hydrocarbon odor <br /> 36 ag (grades fine to medium SAND Brown gray) <br /> 3 8 Sw <br /> ML (Interbedded Clayey Sandy SILT with varying amounts of clay <br /> 3$ 2 and sand content, occasional calcareous nodules) <br /> 6 SW Fine to medium grained SAND Brown/dark brown, moderately <br /> 11 sorted, wet, loose no hydrocarbon odor <br /> TTTfML <br /> 40 — 11 Sandy SILT (25,75) Brown gray moist, no hydrocarbon odor <br /> End of boring Installed groundwater monitoring well <br /> — 42 - <br /> 44- <br /> 46 - <br /> 48 - <br /> - 50 - <br /> - 52 - <br /> 54 - <br /> r <br /> 2444648505254 <br /> 56 <br /> ii ii <br /> 01/06/1998 Irthlo9-june 96 Page 2 of 2 <br />