Laserfiche WebLink
E- <br /> STATE OF CALIFORNIA - Environment Rection Agency fir// PETE WILSON, Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> 3443 Routier Road, Suite A <br /> Sacramento, CA 95827-3098 <br /> PHONE: (916)255-3000 <br /> FAX: (916) 255-3015 <br /> 29 January .1996II /E E C ,�, <br /> JAN 31 1996 <br /> ENVIR0NMEI"vT1AI_ hEALTH <br /> PERMIT/SERVI.CES <br /> Mr. Don O. Culbertson 41l�v��O <br /> Chevron Pipe Line Company , <br /> 6_ M 4000-Executive_Park—wa , Suite 400 / � _�0 <br /> San Ramon, California 94583 _ J <br /> SUBJECT: WORK PLAN FOR ADDITIONAL GROUNDWATER ASSESSMENT AT TRACY <br /> ORCHARDS; TRACY, CALIFORNIA <br /> I have reviewed the above referenced work plan by GEOMATRIX dated 9 January 1996 for <br /> additional vertical delineation of groundwater at Corral Hollow and Grand Line Roads. <br /> I hereby approve the work plan with the provision that well(s) be constructed of 4-inch diameter,' <br /> schedule 40 polyvinylchloride casing and screen completed in a 10-inch diameter boring. Slot size <br /> and filter material should be finalized after your Geologist reviews cuttings from the well(s) boring. <br /> The number of wells may vary depending on the Hydropunch data. <br /> Please contact me (916) 255-3035 at least 72 hours prior to start up of this field work so I can have <br /> a Regional Board staff person present to observe procedures and split samples. <br /> ROBERT J. MATTEOLI„ <br /> Field Support Unit <br /> cc: IVIr. Ned Butler, State Department of Toxic Substances Control, Sacramento <br /> �Ms. Mike Infurna, San Joaquin Public Health Services Department, Stockton j <br /> Mr. Bill Vizza, Director, San Joaquin County Department of Public Works, Tracy <br /> Ms. Veen Chee Fong, Geomatrix Consultants, Fresno <br /> i <br />