Laserfiche WebLink
' aili <br /> 1 <br /> ` a � <br /> /Q 110 w <br /> 1-E Pnrr Inn Ro,lrl, S3cr,unento,CA')582� 11)111 <br /> /icd GeoSyslems •1S_ 1111 <br /> a <br /> a SACRAh1fNT0 <br /> FRE'�1ONT s CULVER CITY o SAN 1(751 <br /> BOSTON <br /> • • IRVINE ► Ftu1iST0,• �^ <br /> January 3, 1991 <br /> 1102gdem <br /> AGS 85102-5 I <br /> Mr. Glenn <br /> Dembroff ! f <br /> Ultramar Inc. ' <br /> 525 Nest'Third Street <br /> Hanford, California 93230 <br /> ing at <br /> Subject: Third [?carter 1990 Quarterly Ground-Watwrionitori€ora aBeacon Service <br /> Station No.492, 470 North Main Street, Manteca, <br /> Raw Mr. Dembroff: ing that <br /> This report presents the resueids at Ultraof the mae'srd gequestuarter latttilersubjectasiteter s(seelthe Site <br /> Applied GeoSystems conduce purpose <br /> is to monitor the <br /> Vicinity Map, Plate P-1). c ase of this sampling program <br /> anal analyses of <br /> concentrations of hydro�nbon ons in ground <br /> waterwto�rsubjective at the e and laboratory included. Work measuring <br /> depths to water, sampf g g <br /> ater gradient beneath the site. 111e locations Of <br /> hydrocarbons, and evaluating the ground-w <br /> the monitoring wells are shown on the Generalized Site Plan, Plate P-2. <br /> Presentround-E'Vater Sam lin 1 <br /> On September 27, 1990, a geologist from Applied GeoSystems conducted the quarterly <br /> event at the subject site following methods summarized in an attachment to this <br /> monitoring on of the San Jo-quip County <br /> letter report.During the course of that t vent, sen Gregory Ly <br /> Department of Public Health Services as present <br /> nor During <br /> the subject s;tegwb ch, <br /> our staff geologist observed environmental investigation. Nater levels <br /> according to Mr. Lyon was part of an ongoing <br /> were measured in the monitoring wells (see Table 1). 'Riese water levels were used to <br /> evaluate the groundwater gradieut, We evaluated the groundwater gradient on Septe�7bcr <br /> 27, 1990, to be flat,which is consistent with the gradient evaluated during the 1. t sampling + <br /> ....event. ... .. - <br />