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AEGIS ENVIRONMENTAL , INC . <br /> 1050 Melody Lane, Suite 160, Roseville, CA 95678 + 916 •782-2110 1 916-969-2110 1 FAX 916. 786-7830 <br />{t <br /> f <br /> . February 7, 1992r .� ' q <br /> FE 8 1 8 1992 <br /> ENVIP0NiviEN";AL tHEA11_,H <br /> 'PERMIT/SERVIC,,113 <br /> Mr. Sayed Saderdin ' <br /> San Joaquin Valley Unified Air Pollution Control District <br /> 2321 West Washington Street, Suite 1 <br /> Post Office Box 2009 <br /> Stockton, California 95201 w <br /> Subject: Results Report for Air Monitoring of <br /> Extended Pilot Vapor Extraction Test <br /> Shell Service Station (WIC No. 204-7524-2408) <br /> 4445 Pershing Avenue, Stockton, California <br /> 'a Dear Mr. Saderdin: <br /> Aegis Environmental, Inc. (Aegis), is pleased to provide this letter report documenting the <br /> results of air monitoring, for January 1992, at the subject site (Figure 1). The monitoring I <br /> included measurements of: a) concentrations of total petroleum hydrocarbons (TPH) in <br /> the (influent) air stream drawn from vapor extraction well (VEW) VEW-2; and b) . <br /> concentrations of.TPH in the exhaust (effluent) emitted from an internal combustion (IC) <br /> unit temporarily operating on site (Figure 2). This report is based, in part, on information <br /> obtained by Aegis from Shell Oil Company (Shell) and is subject to modification as newly <br /> acquired information may warrant. <br /> I <br /> SITE DESCRIPTION <br /> The- Pershing Avenue Shell site is an active service station that retails regular-unleaded, <br /> super regular-unleaded, and super-unleaded gasolines.' The site is. located in a i <br /> commercial/residential area of Stockton. <br /> I <br /> E <br /> Y i <br /> 89-016J.RPT <br /> GEOLOGISTS ENGINEERS GROUNDWATER SCIENTISTS <br />