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I'1 <br /> 3 <br /> AEGIS ENVIRONMENTAL , INC . <br /> 1050 Melody Lane, Suite 160, Roseville, CA 95678 + 916.782-21 10 1 916 - 969-2110 1 FAX 916.786-7830 <br /> May 11, 1992 <br /> fit, � :�n , r-� �t77., <br /> E,ll L: a.�'J li n W ,Ft -.i _ .7✓ <br /> Mr Jerry Moore MAY 1 8 1992 <br /> Moore Petroleum, Inc ENVIRONofiEN i O 1-I� �f 1-t <br /> 5491 "F" Street PER fViI ; , <br /> Banta, California 95304 <br /> Subject Quarterly Groundwater Monitoring Report <br /> Moore Petroleum, Inc (Frank's Exxon #4) <br /> 14800 West Frontage Road, Manteca, California <br /> Dear Mr Moore <br /> Aegis Environmental, Inc (Aegis), is pleased to provide Moore Petroleum, Inc , this letter <br /> report documenting the results of groundwater monitoring, conducted from January <br /> through March 1992, at the subject site (Figure 1) The monitoring included collection of <br /> monthly depth-to-groundwater measurements and quarterly water samples from eight <br /> wells (MW-1 through MW-4 and MW-6 through MW-9) located on site and one well <br /> (MW-5) located off site (Figure 2) This letter report is based, in part, on information <br /> obtained by Aegis from previous consultants and is subject to modification as newly <br /> acquired information may warrant <br /> The West Frontage Road site is occupied by an active service station and convenience <br /> store The station retails unleaded gasollnes Details of the site's current facilities, <br /> including underground storage tanks, were reported to Moore Petroleum, Inc , by Aegis <br /> In a "Limited Subsurface Investigation Workplan," dated August 5, 1991 The project site <br /> is located on the west side of State Highway 99, on the northern outskirts of Manteca, <br /> California, In a commercial/agricultural area <br /> BACKGROUND <br /> Aegis began a program of monthly monitoring and quarterly sampling of the wells in <br /> January 1991 Work performed at the site by previous consultants included investigations <br /> by Earth Treatment Systems, Inc (ETS), of Merced, California, Delta Environmental <br /> Consultants, Inc (Delta), of Rancho Cordova, California, and Nations Groundwater <br />' Associates (NGA) of Sacramento, California <br /> 90-097A QM R <br /> GEOLOGISTS - ENGINEERS - GROUNDWATER SCIENTISTS <br />