SITE INFORMATION AND CORRESPONDENCE

Home Browse Search

California Regional Water Quality Control Board � =a� Central Valley Region , Winston H.Hickox Robert Schneider,Chair DavisGray D Secretaryfor Sacramento Main Office Governor Environmental Internet Address: http://www.swrcb.ca.gov/--rwgcb5 Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 Phone(916)255-3000•FAX(916)255-3015 Mr. Philip Cardoza 5 June 2001 Cardoza Properties 1111 Civic Drive, Suite 635 Walnut Creek, CA 94596 CORRAL HOLLOW AND GRANT LINE ROADS SITE, TRACY, SAN JOAQUIN COUNTY Mr. Michael Kingsbury of your office has requested on several occasions, most recently on 30 May 2001, a summary of the status of the Chevron pipeline leak that has polluted groundwater beneath your property at Corral Hollow and Grant Line Roads in Tracy. This letter responds to Mr. Kingsbury's request. First of all, we would like to apologize for just now responding to Mr. Kingsbury. As we had explained to Mr. Kingsbury during several phone calls, recent program and staffing changes at the Board resulted in the Corral Hollow and Grant Line Roads site getting a low priority. Consequently, we could not provide you or him our comments on Chevron's latest submittal until recently. As stated in our 10 May 2001 letter to Chevron (copy enclosed for your reference), we are requesting Chevron to submit by 8 June 2001 a work plan to conduct a pilot study using oxygen releasing compounds (ORC) to clean up the site. This request is based on Chevron's evaluation, which contained uncertainties in the amount of ORC needed per year and the time to remediate the site. Despite this request for a pilot study,we reiterated to Mr. Kingsbury on 30 May that the site could still be developed as long as site planning and design include provisions for potential groundwater cleanup and long-term monitoring. Since the pilot study and potential long-term monitoring would be performed along the southern and eastern edges of the property, much of the property can be developed without being encumbered by cleanup or monitoring work. If you have any questions, you may call me at (916) 255-3398 or e-mail at isorenp@rb5s.swrcb.ca.gov. - rL*& L, U� ILIP S. ISORENA Associate Engineer Enclosure cc: Ms. Margaret Lagorio, San Joaquin County Public Health Services, Stockton City of Tracy, Public Works Department, Tracy Ms. Veenchee Foong, Geomatrix Consultants, Fresno California Environmental Protection Agency ca Recycled Paper The energy challenge facing California is real.Every Californian needs to take immediate action to reduce energy consumption. For a list of simple ways you can do to reduce demand and cut your energy costs,see our Website at http://www.swrcb.ca.gov/rwgcb5.