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Page 2 <br /> Monitoring Well at 200 N.Beckman Road <br /> September 7,2007 <br /> ma enclosed showing MW4 near the property line between the two parcels) contained <br /> MW4 (map This information and the information from MWl3 and <br /> concentrations of MTBE and TBA. <br /> MW 14 on 880 Victor Road indicate there i an Road property s groundwater contamination underlying the northern <br /> portion of the <br /> groundwater samples from monitoring wells located near, Even continued to Shell <br /> In May 2007, g 280 u L and TBA (45,000 ug/ )• <br /> show high concentrations of MTBE <br /> Conti remediation at their former site, the contaminants may continue to migrate toward the <br /> oundwater, in that area, tends to flow in a southerly <br /> property at 200 Beckman Road, since the gr <br /> direction. <br /> The California Regional Water Quality Control Board, Central Valley Region (CVRWQCB), <br /> provides regulatory guidance and enforcement for the EHD on UST contaminated sites. The <br /> CVRWQCB requires complete lateral and vertical definition of groundwater contaminant <br /> plumes. Enclosed is a copy of a letter from, the Cw <br /> CVRWQCB to.an adjacent property owner of <br /> another site in San Joaquin County requesting that the owner cooperate and allow installation of <br /> monitoring wells on their property. I am enclosing this letter as an example of the type of <br /> investigative action the CVRWQCB would likely enforce at 200 Beckman Road, if the MVCD <br /> does not cooperate with the responsible party. <br /> The EHD will allow the destruction of MW10 with the following conditions: 1) Disclosure of <br /> h the contamination is made to any purchaser of the property; 2) Installation of a monitoring well <br /> closer to the northern property line of 200 Beckman Road is allowed, and/or access for <br /> installation of monitoring wells is part of the sale agreement. <br /> If you have any questions, please contact me at 468-3449. <br /> Donna Heran, REHS, Director <br /> Environmental Health Department <br /> Margaret Lagorio, REHS <br /> Program Coordinator Unit IV <br /> Enc. <br /> c: MVCD—John Stroh <br /> Shell —Denis Brown <br /> t CRA—Mike Murphy <br /> CVRWQCB —Jim Barton <br /> , <br /> i <br /> { <br />