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Levand Family Trust <br />47 East 11 st Street <br />Tracy, California 95376 <br />Page 2 of 2 <br />November 25, 2014 <br />Decontaminate all sampling tools with an Alconox solution and clean all probing rods <br />prior to starting each boring; <br />Containerize any soil or water waste generated during field activities in properly labeled <br />55 -gallon drums; and <br />Notify the EHD at least 48 hours prior to conducting grouting procedures. <br />The EHD approves the work plan with the following conditions: <br />• Soil from the tank pit was found to be slightly elevated for lead. Add analysis for <br />dissolved lead for grab ground water samples (shallow) from the tank pit and the boring <br />immediately north of the former UST area; <br />• During abandonment of boreholes deeper than 30 feet bsg (the maximum free -fall <br />depth) and/or boreholes containing groundwater, use a tremie pipe extending to within 5 <br />feet of the borehole's total depth to pump the cement mixture upward from the bottom of <br />the boring; and <br />• Notify the EHD at least 2 weeks prior to implementing fieldwork so that an inspector can <br />schedule to be present for the well destructions; and <br />The EHD requires that work begin no sooner than 5 working days after the EHD permits <br />have been issued. <br />To proceed with obtaining the permits for these borings, the following must be submitted to the <br />EHD to the attention of Gabriel Gonzalez: <br />Two EHD Well and Boring Permit applications (one for each parcel/address); <br />Master File Record form; <br />Licensed Contractor's Declaration (LCD); and <br />A fee of $650 ($390 x 1 + $130 x 2). The permit fee for borings per parcel is $130, along <br />with a $390 Inspection Activity fee. <br />This EHD approval is limited to only the methods proposed in the work plan for boring <br />advancement and abandonment, soil and groundwater sampling, equipment decontamination, <br />waste management, and technical justification for the proposed work. It is not a concurrence or <br />endorsement for any other conclusions, conditions or implications contained in the AGE <br />Preliminary Site Assessment Work Plan, dated 24 September 2014. <br />Please contact Gabriel Gonzalez at (209) 468-3442, or by email at gagonzalez@sjcehd.com if <br />you have any questions regarding this letter. <br />Sincerely, <br />Gabriel Gonzalez Nuel Henderson, PG <br />Environmental Health Specialist Engineering Geologist <br />c: Brian Millman, PG, Advanced GeoEnvironmental, Inc., 837 Shaw Road, Stockton, CA <br />95215 <br />ec: GeoTracker <br />James L.L. Barton, PG, California Regional Water Quality Control Board Central Valley <br />Reaion, via GeoTracker <br />