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1 <br /> I <br /> SAMPLE P.I.D. USCS DESCRIPTION WELL <br /> DOTH NO. CODE CONST. <br /> 1 50 S-50 80 ppmv ML Clayey silt, dark yellowish brown, dry, low plasticity, hard - <br /> 1 <br /> 52 <br /> .r <br /> I 54 S-55 >50 ppmv SW Sand some silt, fine– to coarse–grained, moderate yellowish brown, <br /> 1 dry, non–plastic, very dense <br /> 5fi <br /> 1 <br /> 58 <br /> 1 <br /> 1 S-60 >50 ppmv ML Clayey silt, light olive gray, dry, low plasticity, hard <br /> _ 60- <br /> - 62 - <br /> 64 — <br /> osz64 S-65 44ppmv Sandy silt, fine–grained, dry yellowish brown, moist, non–plastic, <br /> hard <br /> _ 66 — <br /> N/A <br /> 6NfA SM Silty sand, fine–grained, moderate brown, wet, dense <br /> S-69 ppmv <br /> 75 <br /> 70 - 5-70 N A ML Clayey Silt, moderate yellowish brown, moist, low plosticity, hard <br /> ppmv <br /> I <br /> I72 <br /> S-74 >50 N/A <br /> ppmv <br /> 74 Boring terminated at 74 feet. <br /> Boring Converted to monitoring well <br /> I 76 I <br />! <br /> 7$ <br /> 1 <br /> Aw—AkIi LOG OF BORING: B-21/MW-6 PLATE <br /> i.�'�A7FUM S ARCO Service Station No. 2130 <br /> 7906 North EI Dorado Street 7 <br /> RLE NO Stockton, California <br /> PROJECT NO. 30003 0003G17C <br /> I <br /> 1 <br />