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Page 1 of 2 <br /> Vicki McCartney [EH] <br /> From: THIEN PHAN [californiastop@sbcglobal.net] <br /> Sent: Wednesday, January 24, 2007 1:31 PM <br /> To: Vicki McCartney [EH] <br /> Subject: RE: EHD? <br /> thanks for the clarification.. <br /> thien phan <br /> "Vicki McCartney[EHJ" <vmccartney@sjcehd.com>wrote: <br /> Thien Phan: <br /> EHD stands for San Joaquin County Environmental Health Department. Instead of writing San Joaquin <br /> County Environmental Health Department each time, I write EHD. Instead of writing methyl tertiary-butyl <br /> ether each time, I write MTBE. Instead of writing Advanced GeoEnvironmental, Inc. each time, I write <br /> AGE. <br /> I believe you are referring to the letter San Joaquin County Environmental Health Department (EHD) sent <br /> to you on January 10, 2007. In this letter, EHD explained that methyl tertiary-butyl ether (MTBE) has <br /> been found in soil samples and groundwater samples collected at California Stop. Advanced <br /> GeoEnvironmental, Inc. (AGE), the consulting firm that you hired, has recommended that large amounts <br /> of groundwater be removed from your monitoring wells to help remove MTBE from your groundwater and <br /> help keep the MTBE from spreading underground beyond California Stop. EHD has asked you to submit <br /> a work plan by February 28, 2007, that will explain in writing how you plan to test this idea of removing <br /> groundwater. You have hired AGE to write this work plan for you. This work plan is a written document <br /> that will tell how AGE plans to remove and store the groundwater, and how AGE will evaluate what <br /> happens when groundwater is removed from the monitoring wells at California Stop. This work plan <br /> must be reviewed by EHD and then EHD will decide if the work proposed by AGE is a good idea. If EHD <br /> believes that the work plan is a good plan, then EHD will approve the work plan and send you a letter <br /> 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 <br /> the test. This test is not an upgrade to your facility and the test will not occur until EHD approves the <br /> work plan. After the test has been completed, a report must be submitted to EHD that will explain how <br /> the test was done and give the results of the test. If the test shows that large amounts of MTBE were <br /> removed from your groundwater when the groundwater was removed from your monitoring wells, then <br /> EHD will direct you to continue removing large amounts of groundwater from your monitoring wells on <br /> a regular basis as a way to lower the amount of MTBE in groundwater at your site. <br /> You also need more monitoring wells installed to learn more about how the MTBE is affecting the <br /> groundwater at your site. EHD has asked you for a written work plan that will explain the location and <br /> construction for the monitoring wells. EHD has asked you to send this written document to EHD by <br /> February 28, 2007. When EHD receives the work plan, EHD must decide if the plan is a good idea <br /> before EHD will approve the work that will include adding more monitoring wells to your site. If EHD <br /> approves the work plan, EHD will send you a letter and tell you when the monitoring wells must be <br /> installed. <br /> I hope I have explained what is in the letter that EHD sent to you on January 10, 2007. Please let me <br /> know if you do not understand anything that I have written to you in this e-mail. Thank you. <br /> Vicki McCartney, Senior REHS <br /> 1/24/2007 <br />