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WPI has compared the soil concentrations found in the data set to the Low Threat Closure Policy for direct contact <br /> soils: https://www.waterboards.ca.gov/board decisions/adopted orders/resolutions/2012/rs2012 0016atta.pdf <br /> Benzene(5-10 feet Commercial)-allowed 12 mg/kg,detection ND<.330 mg/kg <br /> Ethylbenzene(5-10 feet Commercial)-allowed 134 mg/kg,detection 1.9 mg/kg <br /> Naphthalene(5-10 feet Commercial)-allowed 45 mgk/kg,detection 1.5 mg/kg <br /> The concentrations found are below the direct contact values listed in the Policy,this demonstrates that they have no <br /> significant risk of adversely affecting human health as stated in the Policy. In addition,the location is currently in an <br /> approved Monitoring and Reporting Program with the CENTRAL VALLEY RWQCB (REGION 5S) (LEAD)-CASE#: <br /> 390247,under the management of Geoffrey Rader. We will be providing this data along with the future remaining data <br /> to be collected to the Cleanup Program to build on the Site Conceptual Model for the location. <br /> Thank you. <br /> Erical Rodriguez <br /> Wayne Perry,Inc. <br /> 714.267.5147(cell) <br /> From: Erica Rodriguez <br /> Sent: Monday, January 10, 2022 2:08 PM <br /> To: 'Ernest, Frederick [EHD]' <fernest@sigov.org> <br /> Cc: 'Steven.J.Jones@shell.com' <Steven.J.Jones@shell.com>; 'Geijer, Theresa A SPLC-STD/HA' <br /> <theresa.geiier@shell.com> <br /> Subject: RE: 3515 Navy Dr., Stockton, CA- Post-UST and Piping Closure in Place status <br /> Frederick, <br /> WPI has completed the following actions today based on a telephone conversation with Stacey Rivera earlier. <br /> 1. Requested AECOM to complete the calculation to address the P-4 location from the opposite side of the piping <br /> to possibly avoid the pea rock interference. <br /> 2. Requested AECOM to complete 3 calculations to collect 5 soil samples and 2 groundwater samples from 3 <br /> borings adjacent to the UST abandoned in place due to the presence of a slab beneath the UST. <br /> 3. Requested Eurofins Calscience to forward the laboratory analytical directly to you. <br /> 4. Contacted directional drillers to identify a vendor to provide this service following County approval of the angle <br /> calculations&z revised boring permit. <br /> Thank you. <br /> Erical Rodriguez <br /> Wayne Perry,Inc. <br /> 714.267.5147(cell) <br /> From: Ernest, Frederick [EHD] <fernest@sigov.org> <br /> Sent:Tuesday,January 4, 2022 8:51 AM <br /> To: Erica Rodriguez<erodriguez@wpinc.com> <br /> Cc: 'Steve n.J.Jones @shell.com'<Steven.J.Jones@shell.com>; 'Geijer, Theresa A SPLC-STD/HA' <br /> <theresa.geiier@shell.com> <br /> Subject: RE: 3515 Navy Dr., Stockton, CA- Post-UST and Piping Closure in Place status <br /> Good morning Erica, <br /> Are there any updates on scheduling for the remaining borings for the closure in place? <br /> 5 <br />