Laserfiche WebLink
T <br /> _ _. <br /> —� — <br /> Owl r <br /> A NESNA COMPV • Dwronrnc++fa(5oiufiou4 <br /> Through AJ)J)1ir11.Srirurr, <br /> Fuginrvr;ng ti Comtrudiun <br /> 1161 Gulrl Cassis 1)iiv,,5uitt'200 <br /> �` R,sac lsu Crmlrn.r,GI 45E,711 <br /> f'lusne 14161 1152-6640 <br /> ['AX 19161 8524+61111 <br /> W, <br /> August 2, 1991 <br /> Mr. Gary Brophy <br /> 1235 Slayton Drive <br /> Manteca, California 95336 <br /> Subject: Ground-Water Monitoring,Second Quarter 1991, at Former Texaco Service <br /> Station, 941 East Yosemite Avenue, Manteca, California. <br /> Mr. Brophy: <br /> At your request, Applied GeoSystems. Ind GeoSystems) <br /> c./RESNA Industries (App <br /> lie <br /> conducted the second quarter 1991 ground <br /> monitoring event at the former Texaco <br /> et west of Higway <br /> Service Station in Manteca,California. The site is approximately <br /> of the mf onitoring eventh s to <br /> ' 99, as shown on the Site Vicinity Map (Plate 1). The pure <br /> drocarbons a emain below Maximum Contaminant levels <br /> verify that concentrations of hy <br /> ealth Services. The work for this monitoring <br /> established by the California Department of I I �ing <br /> g ground water <br /> phase included measuring depths to ground water and subjectively anayz`Vater from hese <br /> in monitoring wells MW-1 throug'r. MW-3, purging and sampling ground <br /> a monitoring wells,analyzing the groundwater samples for hydrocarbons, and evaluating the <br /> locations a <br /> groundwater flow direction and gradientontthe Generalized Site Plathe site. onitoring-wen (Plate 2).in relation <br /> to other former site features are shown <br /> Previous Work <br /> g previous <br /> round water at the site duri <br /> Hydrocarbons were detected in soil and Canonic <br /> investigations by Canonie Environmental Services of Stockton, Californing a { <br /> Environmental Services, March 1 and 29 1988, Report Na.s 85-452-3580 and 3776}. <br /> In October 1988, Applied GeoSystems observed the drilling of three soil borings and the <br /> construction of three monitoring wells at the site. Results of laboratory analyses of soil and <br /> ydrocarbground water collected during this investigation indicated the presence of ex avat ono of On <br /> the basis of the results of this investigation, we recommended (1) <br /> containing hydrocarbons to remove the source for future migration of hydrocarbons into <br /> Ob26gbru <br /> W-3-4 <br />