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HEALTH SERVICE <br /> PUBLI� HE �. .. <br /> SAN JOAQUIN COUNTY <` y <br /> JOGI KHANNA,\I.D,NI.P.H r <br /> Health Officer �., w <br /> ��,•, ,i1F'o'iaP <br /> P.O. Box 2009 (1601 East Hazelton Avenue) Stockton, califotn '93YQ1, 7 <br /> (209) 4683400 ' ! -i � <br /> CHUCK CARMEL <br /> ENVIRONMENTAL ENGINEER <br /> ARCO PRODUCTS COMPANY 9,PR, 2 9 19°3 <br /> P O BOX 5811 <br /> SAN MATEO CA 94402 <br /> RE: ARCO sites in San Joaquin County <br /> On March 30, 1993, a meeting was held in the office of San Joaquin County Public Health Services, <br /> Environmental Health Division (PHS/EHD) with the following representatives in attendance: <br /> H.C. Windsor ARCO Products Company <br /> Kyle Christie ARCO Products Company <br /> Chuck Carmel ARCO Products Company <br /> Jay Lucas Brown & Caldwell <br /> John Bobbitt RESNA <br /> Jay Johnson RESNA <br /> Elizabeth Thayer Central Valley Regional Water Quality Control Board <br /> (CVRWQCB) <br /> Laurie Cotulla PHS/EHD <br /> Margaret Lagorio PHS/EHD <br /> Diane Hinson PHS/EHD <br /> PHS/EHD staff members attended portions of the meeting related to the sites for which they provide oversight <br /> and are shown in the site specific summary. <br /> Prior to discussing specific sites a number of items were discussed. The lead agency for oversight of <br /> investigation and remediation of contaminated underground storage tank sites in San Joaquin County is <br /> PHS/EHD. PHS/EHD may certify soil cases without concurrence of CVRWQCB. Concurrence of <br /> CVRWQCB is required prior to certification of groundwater cases. PHS/EHD uses the LUFT Manual, Tri- <br /> Regional Board Staff Recommendations, and Appendix "A° as guidance documents when reviewing site <br /> investigations and reports. <br /> ARCO representatives explained they would like to prioritize remediaton activities at sites to better utilize <br /> the remediation equipment. ARCO will continue to define the extent of contamination at those sites where <br /> the extent of contamination has not been identified. <br /> The use of risk assessments and fate transport models was also discussed- PHS/EHD will review and consider <br /> any information submitted. However,all groundwater in San Joaquin County is considered to be of beneficial <br /> use. Therefore, site certification is not based on health risks but on this actual or potential usage of the <br /> groundwater. Both PHS/EHD and CVRWQCB continue to strive for restoration of soil and groundwater to <br /> its condition before it was contaminated. <br /> The content and revision of quarterly monitoring reports was discussed. PHS/EHD requested quarterly reports <br /> be submitted to staff members prior to the next quarterly sampling event. <br /> A Division of San Joaquin County Hcaith circ x mca �� <br />