Laserfiche WebLink
'® �� �1989 <br /> SERVICES, W . PpR <br /> OOO DRIVE <br /> MEs� CE f o"P^" <br /> swoM <br /> SN DIEGO, CALIFORNIA 92136-5178 SAN DIEGO, CALIFORNIA 91 <br /> .All��'Tk <br /> (619) 455-3045 <br /> March 31, 1989 <br /> OPS/GSK:060:89 <br /> Mr. Tej Pahwa <br /> Department of Health Services <br /> Toxic Substance Control Division <br /> Alternate Technolo . <br /> 400 'P' Street <br /> Sar_ramento, CA 94234-7320 <br /> Dear Mr. Pahwa: <br /> I am writing to inform you that excavation work in the borrow area at our <br /> Stockton, California project uncovered some contaminated soil unrelated to the <br /> planned work of our project. A representative sample and chemical analysis of <br /> the soil indicates contamination with xylenes at a concentration of 6 ppm <br /> (6000 ug/kg). The amount of contaminated soil is estimated at 250 cubic <br /> yards. Please find attached the laboratory analysis. <br /> Currently, we are excavating this soil and placing it into a segregated area <br /> of the current stockpile where it will be restored until a determination of <br /> the proper method of disposal. We are requesting determination of the <br /> applicability of thermally treating this material under our present variance. <br /> If thermal treatment of this material is acceptable then we will formally <br /> request permission to treat the material from both the DOHS and the San <br /> Joaquin Air Pollution Control District. If you have any questions concerning <br /> this matter, please do not hesitate to call me at 619/455-4619. <br /> Sincerely, <br /> G. Scott Koken <br /> Sr. Permit Engineer <br /> GSK:als <br /> Attachment <br /> CC: Mr. R. Asretadoo - San Joaquin County Air Pollution <br /> Control Department <br /> Ms. Diane M. Hinson, R.S. - Environmental health Division <br /> Mr. Gordon L. Boggs - California Regional Water Quality Board <br />