Laserfiche WebLink
IVlobii Oil Corporation ST ALAMEDA AVENUE <br /> pj �m r <br /> '-,,�, [� ����K,CALIFORNIA 91505-4331 <br /> bI <br /> , . --ALTH <br /> May 22 1q%-2 !i l <br /> Ms. Mary Meays FORMER MOBIL BULKPLANT <br /> San. Joaquin County 500 EAST _GRANTLIN& ROAD <br /> Environmental Health Division TRACY- CALIFORNIA <br /> 1601 East Hazelton Ave. <br /> Stockton, CA 95201 <br /> _ Dear Ms Meat's: <br /> Enclosed for. your information is the Supplemental Site <br /> Investigation dated May 19, 1992, for subject location..., ,.. <br /> Soil borings B-.11 through B-15 . indicate that the capillary <br /> fringe_in_terval in the vicinity o.f _AW-6 .has not been <br /> impacted by petroleum hydrocarbons:. An'alytical 'results from <br /> the_: soil- samples collected. from AW-9 indicate the onsite <br />{ extent...-of adsorbed-phase- hydrocarbons appears, limited. to the <br /> capillary fr%nge interval -between approximately .10 and 12 <br /> f bg. <br /> With. the exception of the .November 199] sampling event, , <br /> laboratory analysis has consistently°, shown that monitoring <br /> wells AW.-I, --AW-r2 , and AW-4 through. AW-8 do not contain <br /> concentrations of dissolved p.etroleum 'hydrocarbons. above <br /> method--detection limits. Furthermore, it should .be noted <br /> that_ the revised laboratory reports submitted by Sequoia <br /> Analytical. ,far the- November 1991 sampling event, included. .in <br /> Appendix B, indicate that fallowing additional <br /> interpretation, the samples did not contain-diesel, with the <br /> exception of AW_-3 . The concentration.-quantified;-asr gasoline <br /> in AW=3 is the result- of diesel-range hydrocarbons. <br /> F <br /> If-you have any questions, Please feel free to call me- at <br /> i (818):=953-2626. <br /> F <br /> Sincerely, <br /> Stephen Pao <br /> Field. Engineer 11, <br /> w <br /> Environmental- <br /> N , <br /> Awareness <br />