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• <br /> ENVIRONMENTAL HEALTH DEPARTMENT <br /> SAN JO COUNTY <br /> Unit Supervisors <br /> Donna K.Heran,R.E.H.S. Carl Borgman,R.E.H.S.� 304 East Weber Avenue, Third Floor <br /> Director Mike Huggins,R.E.H.S.,R.D.I. <br /> At Olsen,R.E.H.S. Stockton, California 95202-2708 Douglas W.Wilson,R.E.H.S. <br /> , <br /> • . /Fp0.�\P.• Program Manager Telephone: (209) 468-3420 Margaret Lagorio,R.E.H.S. <br /> 9� <br /> Laurie A.Cotulla,R.E.H.S. Fax: (2O9) 464-0138 Robert McClellan,R.E.H.S. <br /> Program Manager Mark Barcellos,R.E.H.S. <br /> RYDER INC MAR 0 3 2004 <br /> 1630 SOUTH CHURCH STREET SUITE 301 <br /> MURFREESBORO TN 37130 <br /> RE: Ryder LC 1071 <br /> 3633 Duck Creek Drive <br /> Stockton, Ca. 95215 <br /> San Joaquin County Environmental Health Department (EHD)has reviewed the <br /> analytical results of the soil samples taken from beneath the underground storage tank <br /> (UST) dispensers at the above referenced address on November 14, 2003. These results <br /> are contained in the Frey Environmental report dated February 5, 2003. <br /> This work was conducted to investigate the extent of contamination found in the areas of <br /> dispensers 5, 8 and 9 on September 18, 2003, during the underground storage tank <br /> product piping and fuel dispenser upgrade activities: In September 2003 the <br /> concentration of total petroleum hydrocarbons as diesel (TPH-d) in the area of dispenser <br /> 8 (D8) at 5 feet below surface grade (bsg)was 1300 mg/kg. The results of the <br /> investigation in November 2003 show that the contamination found in the areas of <br /> dispensers 5 and 9 was limited. However, the concentration of TPH-d in the area of D8 <br /> increased to 2000 mg/kg at 7 feet bsg. Therefore, the lateral and vertical extent of <br /> contamination in this area requires further investigation. Submit a work plan to EHD for <br /> further investigation in the area of D8 by April 19, 2004. <br /> Contact Harlin Knoll at EHD/ Site Mitigation Unit for further information regarding this <br /> matter at (209) 468-3442. <br /> Donna Heran, REHS,Director <br /> Environmental Health Department <br /> Harlin Knoll, Senior REHS MargaM Lagorio,=S <br /> Unit IV Supervisor <br /> c: Tony Hearld, A-Team Consulting, 94 Angeles Vista Circle, Sandia Park,NM 87047 <br /> Frey Environmental, 2817A Lafayette Ave.,Newport Beach, CA 92663 <br />