Laserfiche WebLink
( <br /> i <br /> OfffiWfi Associates <br /> 1433 North Market Boulevard • Sacramento California 95834-1943• (916)928-3300• Fox(916)928-3341 <br /> i <br /> OG 0 9 1994 <br /> ENV RONMENTAL HEALTH <br /> PERMIT/SERVICE' 8, 1994 <br /> Project 0805-109 01 <br /> Ms Mary Meays <br /> San Joaquin Public Health Services <br /> P O Box 2009 <br /> Stockton, California 95201 <br /> Re Addendum to Problem Assessment Report ARCO Service Station No 0548 at <br /> 1612 Hammer Lane, Stockton, California <br /> Ms Meays <br /> At the request of ARCO Products Company (ARCO), EMCON Associates (EMCON) has <br /> prepared this addendum to the Problem Assessment Report (PAR), prepared by RESNA <br /> Industries (RESNA, May 11, 1994, Report 30004-8) for the subject site (shown on figure 1) <br /> Based on your letter dated June 2, 1994, the PAR failed to provide cross sections, maps with <br /> nearby wells that may influence the gradient, preliminary vapor extraction test results and an <br /> evaluation of remedial alternatives EMCON has prepared this addendum to provide this <br /> information <br /> Based on data collected to date, EMCON believes the lateral and vertical extent of petroleum <br /> hydrocarbons both remaining in soil and dissolved in the groundwater have been defined The <br /> locations of the wells and other site features are shown on figure 2 <br /> Water-Supply Wells <br /> Based on a well search conducted by previous consultant at the City of Stockton Public Works <br /> Department,Emcon understands domestic water is supplied by municipal wells Numerous water- <br /> supply wells are located near the site Data obtained from the California Department of Water <br /> Resources concerning these wells are presented in Table 1, and the locations of the wells are <br /> depicted on Plate 1 The maJority of the municipal wells are located east of the site The nearest <br /> municipal well (No 29) is approximately 1,000 feet to the south, and the nearest domestic well <br /> (No 26) is approximately 1,200 feet to the southeast There is another domestic well (No 27) <br /> that is approximately 1,500 feet to the northwest Other wells may exist in the area but are not <br /> documented This information was originally presented in the Preliminary Investigation and <br />