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■ <br /> Page 1 of 2 <br /> Vicki McCartney [EH] <br /> From: Vicki McCartney [EH] <br /> Sent: Wednesday, January 24, 2007 10:07 AM <br /> To: 'THIEN PHAN' <br /> Subject: RE: EHD? <br /> Thien Phan: <br /> EHD stands for San Joaquin County Environmental Health Department. Instead of writing San Joaquin County <br /> Environmental Health Department each time, I write EHD. Instead of writing methyl tertiary-butyl ether each time, <br /> I write MTBE. Instead of writing Advanced GeoEnviron mental, Inc. each time, I write AGE. <br /> I believe you are referring to the letter San Joaquin County Environmental Health Department (EHD) sent to you <br /> on January 10, 2007. In this letter, EHD explained that methyl tertiary-butyl ether (MTBE) has been found in soil <br /> samples and groundwater samples collected at California Stop. Advanced GeoEnvironmental, Inc. (AGE), the <br /> consulting firm that you hired, has recommended that large amounts of groundwater be removed from your <br /> monitoring wells to help remove MTBE from your groundwater and help keep the MTBE from spreading <br /> underground beyond California Stop. EHD has asked you to submit a work plan by February 28, 2007, that will <br /> explain in writing how you plan to test this idea of removing groundwater. You have hired AGE to write this work <br /> plan for you. This work plan is a written document that will tell how AGE plans to remove and store the <br /> groundwater, and how AGE will evaluate what happens when groundwater is removed from the monitoring wells <br /> at California Stop. This work plan must be reviewed by EHD and then EHD will decide if the work proposed by <br /> AGE is a good idea. If EHD believes that the work plan is a good plan, then EHD will approve the work plan and <br /> send you a letter that will tell you when to complete testing this plan. Usually the test will last about ten days. The <br /> groundwater that is removed is stored in a big tank that is placed on your property while AGE performs the test. <br /> This test is not an upgrade to your facility and the test will not occur until EHD approves the work plan. After the <br /> test has been completed, a report must be submitted to EHD that will explain how the test was done and give the <br /> results of the test. If the test shows that large amounts of MTBE were removed from your groundwater when the <br /> groundwater was removed from your monitoring wells, then END will direct you to continue removing large <br /> amounts of groundwater from your monitoring wells on a regular basis as a way to lower the amount of MTBE in <br /> groundwater at your site. <br /> You also need more monitoring wells installed to learn more about how the MTBE is affecting the groundwater at <br /> your site. EHD has asked you for a written work plan that will explain the location and construction for <br /> the monitoring wells. EHD has asked you to send this written document to EHD by February 28, 2007. When <br /> EHD receives the work plan, EHD must decide if the plan is a good idea before EHD will approve the work that <br /> will include adding more monitoring wells to your site. If EHD approves the work plan, EHD will send you a letter <br /> and tell you when the monitoring wells must be installed. <br /> I hope I have explained what is in the letter that EHD sent to you on January 10, 2007. Please let me know if you <br /> do not understand anything that I have written to you in this e-mail. Thank you. <br /> Vicki McCartney, Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> 304 E. Weber Avenue <br /> Stockton, CA 95202-2708 <br /> Phone: (209)468-3456 <br /> Fax: (209)468-3433 <br /> E-mail: vmccartneygsjcehd.com <br /> 1/24/2007 <br />