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Page 2 of 6 <br /> Subject: FW: Well Destruction - BP 11193 (3202 W Hammer Ln, Stockton, CA) <br /> Good morning Jose, <br /> I haven't spent a lot of time reviewing the groundwater analytical data for the site at 3202 Vilest Hammer <br /> Lane, but having done a cursory review, I believe the following wells still have contamination and must be <br /> over drilled: MW-4, MW-5, MW-7 through MW-9, MW-13 and VW-1. In addition to these wells, the ozone <br /> sparge wells are in an area of known contamination and because the ozone sparge wells have micro- <br /> sparge tips, pressure grouting will not work because the grout will not go through the micro-sparge tips. <br /> The ozone sparge wells must be destroyed by removing all material within the original borehole (including <br /> the well casing, screen filter pack and annular seal). This presents a problem since the ozone sparge wells <br /> have a 0.75-inch casing and the driller must remain on track for the contents to be removed. Include in <br /> your well destruction work plan the method for removing the ozone sparge wells. <br /> Also, when you described in your email below how the wells will be pressure grouted, you mentioned that <br /> after air-knifing to 3 feet bsg, the casing would be cut to 3.5 feet bsg. Instead, the casing should be cut at <br /> 2.5 feet bsg. Please refer to sections 13.17.12. and 13.17.13 of the San Joaquin County Well Standards. <br /> Once I receive the letter from the Regional Board, I will be sending out another letter with further <br /> instructions. <br /> Vicki McCartney, Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> 600 East Main Street <br /> Stockton,California 95202 <br /> Phone: (209)468-9852 <br /> Fax: (209)468-3433 <br /> Email: vmccartneY(4�sicehd.corn <br /> From: Vicki McCartney [EH] <br /> Sent: Tuesday, October 18, 20114:29 PM <br /> To: 'Yan, Jose' <br /> Subject: RE: Well Destruction - BP 11193 (3202 W Hammer Ln, Stockton, CA) <br /> Hello Jose, <br /> The MFR form that you listed in your email is the correct MFR form. Fill in the section under OWNER <br /> FILE, skip the section titled SITE MITIGATION_ENVIRONMENTAL ASSESSMENT_etc. Fill in the first <br /> three lines of the section under FACILITY FILE, then skip down to THIRD PARTY BILLING INFO and <br /> complete the three lines under this heading. Then skip down to APPLICANT NAME. Whomever signs this <br /> section is responsible for any fees that may occur beyond what is covered by the permit fees. Also, you <br /> must include the Tax ID #. All the other sections not mentioned will be completed by our Accounting <br /> Department. <br /> The letter from the Regional Board is the correspondence that I have yet to receive but is the concurrence <br /> letter that I need to proceed with destroying the wells. I'll probably get the letter this week. <br /> I will not issue any well destruction permits until after I receive and approve the work plan. Also, I will not <br /> issue any well destruction permits until after I receive the encroachment permit and access <br /> agreement. These must accompany the well destruction permit applications. I suggest you submit the <br /> work plan first. This will give me time to review the work plan while you work to get the access agreement <br /> and encroachment permit. <br /> I don't have time right now to check the concentrations found in groundwater collected from the various <br /> wells. Please submit the work plan and I will review everything at that time. <br /> Thank you. <br /> 10/26/2011 <br />