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PAW <br /> jj <br /> - <br /> :r�i <br /> f <br /> E*�ON COMPANY USA. <br /> -. P.0-BOX 4415-HOUSTON,TEXOAS772 <br /> 10-4415 � � t'+�t •��.3 - <br /> 1+✓!•fir <br /> REALEESTATEE&AENGINEERING <br /> - ENVIAONME�TALGEOLOGIST <br /> ��PR GAS <br /> September 3, 1987 �1FRC1�E�N (aMt-,{ISS <br /> "' . Former Exxon RIS At-1050 <br /> 909 West Hammer Lane <br /> Stockton, California <br /> �r <br /> ra Ms. Laurie Cotul la <br /> JN,N' San Joaquin Local Health District <br /> Post Office Box 2009 <br /> Stockton, California 95201 <br /> Dear Ms. Cotulla: <br /> As discussed in my Tetter of June i, T9S7, additional investigative work at i <br /> the. above-referenced location has been conducted. The two additional wells <br /> 1 installed by Groundwater Technology Inc. show that the groundwater gradient is <br /> Slightly different than originally calculated. This fact, along with benzene <br /> levels abovC-SAL, indicates a need for further investigation: . <br /> I' propose to. conductTV <br /> a soil vapor survey to aid in the placement of additional <br /> wells. The results of the soil vapor survey along with the recommended <br /> locations of our a additional wells would then be submitted for y AprovaT . In <br /> the interim, we will continue to bail and gauge the wells on a weekly basis. <br /> j t <br /> Attached for your review is a copy of GTI's most recent report. If your have <br /> any questions or comments, please call me at 713/656--,755. P, <br /> Sincerely, <br /> JMK:j b 1 <br /> 97364 <br /> . a Encl . <br /> ,y c R. W. Dennis <br /> _ . ... <br /> i <br /> J.,R.-..Greco- Los-Angeles District � R <br /> R. M. Jones - .Seattle District <br /> L. W. 1.i ndeen <br /> J. K 5andewsai - Los Angeles District' <br /> i . <br /> ' ciwa: Mr. Steven A. Herum <br /> Neumilier & Bearnslee <br /> } ;w 509 West Weber Avenue <br /> x Stockton, California 95203 <br /> �} c/wa: Mr. Gordon Lee 8oggs <br /> California Regional Water Quality Board Control <br /> ` 3201 South Street s , <br /> ' A oivlsioN 0F Aax04;ct%gAk90h .Ca l i forn i a 95816 <br /> r� - <br />