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CHEMICAL CO., r <br /> 12 <br /> 300 N PATRICK BLVD. (53045) <br /> DRAWER 009,i8 <br /> 00 K F I E L D.W I SC 0 N S I r 4 5 3 008 C 9 4 8 <br /> OF I ICE 414/792.1450 <br /> CSIMIIE 414/792.8721 <br /> March 14, 1996 <br /> Mr. Carl E. Wills <br /> Applied Earth Sciences, Inc. <br /> 16415 Addison Road <br /> Suite 700 <br /> Dallas, TX 75248-2460 <br /> RE: Proposed modification to the groundwater monitoring program at the <br /> US Chemical facility, in Stockton,CA <br /> Dear Mr. Wills: <br /> This letter is in response to your request on behalf of the Canteen Corporation to inO'dify <br /> the currently existing access agreement between US Chemical and Canteen by the addition <br /> of certain parameters to the vftonitoring program for the wells that are present on US. <br /> Chemical property. At this time, the proposed.re-visions to the groundwater monitoring <br /> plan do not meet with the approval of US Chemical, as we,havenot receive.d adequate <br /> information to reasonably assess this request. <br /> To date, the distribution of contaminants, if any, has not beel) defined on the US Chemical <br /> property because of both, a lack of monitoring points, and monitoring points with <br /> screened intervals located beneath the optimal zone to properly monitor petroleum <br /> Contamination. US Chemical would approve the addition Of the parameters listed below <br /> when the damage to our property, if any, has been confirmed and documented. As you <br /> have indicated, these parameters <br /> ters are methyl tertiary butyl ether (MTBE), dissolved oxygen <br /> (DO) and oxygen redox potential (ORP). <br /> Should you have any furthcr.questions concerning this matter,ter,please call me at your <br /> convenience. <br /> Sincerely, <br /> Thomas azga <br /> D -ec � <br /> ii tor of Regulatory, Health and Safety <br /> cc! Mark Laelin _ US Chemical <br /> Mr. W. Bryant Stevens - Canteen Corporation <br /> QUALITY In All We Do <br />