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PUBLIC VEALTH SERVICES <br /> SAN JOAQUIN COUNTY s, <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Ernest M. Fujimoto, M.D., M.P.H., Acting Health Officerq. <br /> 445 N. San Joaquin Street • P.O. Box 388 • Stockton, CA 95201-0388 <br /> (209) 468-3420 <br /> RANDALL K STEPHENSON Py <br /> ULTRAMAR INC <br /> 525 THIRD ST <br /> P O BOX 466 MAR <br /> tA 01 1995 <br /> HANFORD CA 93232-0446 <br /> RE: Ultramar/Beacon #474 SITE CODE: 1173 <br /> 3440 East Main Street <br /> Stockton, CA 95205 <br /> San Joaquin County Public Health Services, Environmental Health <br /> Division (PHS-EHD) has reviewed the "Work Plan for Hydrogeologic <br /> Testing and Additional Subsurface Assessment" as submitted by <br /> Acton Mickelson van Dam, Inc . on February 6, 1995 and has the <br /> following comments . <br /> Prior to initiating any vapor or groundwater pump test, please <br /> submit copies of the appropriate agency' s permit to discharge to <br /> PHS-EHD for approval . As tests are completed, copies of the <br /> results and findings should be included in the groundwater <br /> quarterly reports currently being submitted to PHS-EHD. <br /> Prior to issuing of the offsite boring permits to install <br /> monitoring or vapor wells, PHS-EHD will require copies of the <br /> encroachment permits to be on file with this agency. Due to <br /> recent changes in the City of Stockton policy for encroachment <br /> permits issuance, more time has been required to acquire these <br /> permits and PHS-EHD recommends you contact Diana Arana at (209) <br /> 937-8349 to ensure that your timetable will coincide with permit <br /> issuance . <br /> It is recommended that adequate soil samples be analyzed so that <br /> a complete lateral and vertical delineation can be established <br /> for later use in completing the Problem Assessment Report (PAR) <br /> that PHS-EHD will require. Areas where no data exist will <br /> eventually have to be investigated in order to verify the full <br /> extent of soil and groundwater contamination. <br /> Borings or wells proposed to be left ungrouted overnight pending <br /> laboratory analyses must be protected so that surface <br /> contaminates can not migrate downward. PHS-EHD will require such <br /> holes to have the traffic boxes set in a surface seal and <br /> securely fastened prior to the contractor leaving the site <br /> overnight . As lab results dictate, the grout can be placed <br /> through the traffic box once the boring' s usage is determined. <br /> A Division of San Joaquin Countv Health Care Services <br />