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. � Page 2 of 2 <br /> Thanks for your help over the phone today and for letting us know about San Joaquin County's <br /> requirement for 2" of annular space for grouting. I spoke with Ralph at Woodward Drilling, and we <br /> would like to do the following to ensure that there is at least 2 inches of annular space for the <br /> grouted extent of the well: <br /> Use direct-push 3.5" probes to drill to the total depth (17 feet bgs)as described in workplan,then <br /> over drill with 8" hollow stem augers (this can still be done with a direct-push rig)to planned top of <br /> bentonite (6 ft bgs).The pre-packed well will then be built through the probe rods as described in <br /> the workplan (10' screened interval, one foot of bentonite), and then we will pull the probe rods to <br /> the bottom of the auger, and then grout though auger to surface.Aside from the plan for <br /> overdrilling the top six feet of the well, all other details on the construction will be unchanged from <br /> the plan presented in the workplan and original permit application. <br /> Could you please confirm that this is acceptable to you? <br /> Thank you, <br /> Julie <br /> Julie Shortridge I Staff Environmental Engineer I i�Llie.shortridgp@arcadis-us.com <br /> ARCADIS U.S.. Inc. 13101 Wilson Blvd. Suite 550 1 Arlington,VA 22201 <br /> T. 202.679.6535 <br /> www.arcadis-us.com <br /> ARCADIS, Imagine the result <br /> Please consider the environment before printing this email. <br /> NOTICE: This e-mail and any files transmitted with it are the property of ARCADIS U.S., Inc. and its <br /> affiliates. All rights, including without limitation copyright, are reserved. The proprietary information <br /> contained in this e-mail message, and any files transmitted with it, is intended for the use of the <br /> recipient(s)named above. If the reader of this e-mail is not the intended recipient, you are hereby <br /> notified that you have received this e-mail in error and that any review, distribution or copying of this <br /> e-mail or any files transmitted with it is strictly prohibited. If you have received this e-mail in error, <br /> please notify the sender immediately and delete the original message and any files transmitted. The <br /> unauthorized use of this e-mail or any files transmitted with it is prohibited and disclaimed by <br /> ARCADIS U.S., Inc. and its affiliates. Nothing herein is intended to constitute the offering or <br /> performance of services where otherwise restricted by law. <br /> 8/15/2011 <br />