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PUBL C HEALTH SERVICES <br /> SAN JOAQUIN COUNTY a' <br /> b: < <br /> JOCI KHANNA M.D.,M.P.H. <br /> Health Officer • �.,. <br /> 'FOQ <br /> 4 a`P <br /> P.O. Box 2 9 • (1601 East Hazelton Avenue) • Stockton, Califomia 95201 C <br /> (209)468-3400 <br /> GREG GAUT p� <br /> COMFORT AIR ��� 1 ry�q� <br /> 1607 TURNPIKE <br /> STOCKTON CA 9520 <br /> RE: Comfort Air SITE CODE: 1266 <br /> 1607 Turnpike <br /> Stockton, CA 95201 <br /> San Joaquin County Public Health Services, Environmental Health <br /> Division (PHS/EHD has reviewed the letter dated April 2 , 1993 from <br /> Gregory A. Gau , President, Comfort Air, Inc. , containing <br /> groundwater monitoring data. <br /> The next "Quarterly Report" shall include sampling of the three <br /> monitoring wells on site. Groundwater samples shall be placed on <br /> ice, transported under chain-of-custody protocol to a California <br /> state certified vironmental laboratory and analyzed for BTEX and <br /> TPHG by EPA meth ds 8020 and modified 8015, respectively. A 48 <br /> hour notice shall be given to PHS/EHD prior to sampling. <br /> Sampling for this "Quarterly Report" should occur on or near the <br /> 30th day of June <br /> It will be necessary to install additional monitoring wells to <br /> physically define the horizontal and vertical extent of the soil <br /> and groundwater contamination. <br /> At the conclusicar of the next quarterly sampling, but no later than <br /> June 30, 1993 , s bmit a work plan based upon the recommendations <br /> from the quarter..y monitoring data. <br /> If there are any questions please contact Michael Collins, EHS, at <br /> (209) 468-0338. <br /> Jogi Khann , D , M.P.H. <br /> Health Officer <br /> '47e. <br /> aurieQA. CoLulllREH , Program Manager <br /> Environmental Health Division <br /> LAC/MC: lb <br /> c: CVRWQCB <br /> A Dry sbn of V, )mgwn Gounry Hry th art Ymcrs �� <br />