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Project 113-26-04, 05, Page 14 <br /> November 17, 1995 <br /> VI. RECOMMENDATIONS <br /> The lateral extent of gasoline contaminated groundwater has been delineated in the <br /> down gradient direction from the site's UST system The soil and groundwater at B- <br /> 8 were very contaminated with gasoline though MW-2 is downgradient from B-8, <br /> and groundwater from MW--2 has yielded ND results b of the 8 times monitored <br /> The up gradient portion of the contaminant plume has been investigated up to the <br /> adjoining property boundary across Holly Drive <br /> It is our understanding that the property owner has been contacted by the County <br /> with regard to performing environmental site investigation activities, and that <br /> work may be commencing within a few months <br /> Parker Environmental Services recommends that monitoring of the wells MW-1, 2, <br /> 3, 5, 6 and 7 be performed twice a year until data from the site investigation at 2421 <br /> Holly Drive can be reviewed MW-4 will be checked for free product Other <br /> investigative or remedial work at 15 East Grant Line Road should be postponed <br /> until such time as the aforementioned data has been generated and analyzed <br /> • <br /> Parker Environmental Services, 190 East 7th Street, Pittsburg, CA 94565-2317 <br /> Phone (510) 439-1024 Fax (510) 439-2566 <br />