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And erson-Barngrover Ranch, Linden - 2 - 29 June 2023 <br /> Table 2 - Summary of Proposed Borings <br /> Total Soil Sampling Grab Groundwater <br /> Sampling Location Depth Sampling Notes <br /> Location (from UST) (ft bgs) (Depth Analysis (D epth bgs) Analysis <br /> ft North -150ft NNE TPHg, TPHd, TPHg, TPHd, <br /> loft Total Interface <br /> West -160ft E -70' intervals TPHmo, Depth TPHmo, robe3 <br /> South -115ft SW VOCs2 p VOCs2 p <br /> TPHg= total petroleum hydrocarbon as gasoline; TPHd= TPH as diesel; TPHmo= TPH as <br /> motor oil; VOCs= volatile organic compounds; ft= feet; bgs= below ground surface; NNE= <br /> north-northeast; E= east; SW= southwest; -= approximately <br /> 1 Borings will extend to groundwater which is expected around 70 feet bgs. <br /> 2 VOC analysis will include MTBE (methyl tert butyl ether). <br /> 3 Interface probe will be used to measure LNAPL, if present. <br /> If you have any questions or concerns regarding comments in this letter or regarding the <br /> Site, please contact Alan Buehler at (916) 464-4615 or by email at <br /> alan.buehler(a�-waterboards.ca.gov. <br /> 6t1 1�� = <br /> Alan M. Buehler, P.G. *GalvVinffman, P.G. <br /> Engineering Geologist Senior Engineering Geologist <br /> CS\ONAL Go C� R Ck <br /> 0<� <br /> 4 ALAN M. BUEHLER <br /> No.9340 i 9542 <br /> IPA <br /> J' \ <br /> I�OFCA1-CFO�\ f4r�OF CAI.\f��`�! <br /> cc: Elena Manzo, San Joaquin County EHD, Stockton (email) <br /> Joe Brusca, Brusca Associates Inc., P.O. Box 332, Roseville 95661 (email) <br /> Russell Austin, Murphy Austin Adams Schoenfeld LLP, 555 Capital Mall #850, <br /> Sacramento 95814 <br />