Laserfiche WebLink
ECt=- - ... - <br /> V-R 2 8 2000 1 <br /> ENVIRONME'^1-fAL t-[EALT,H <br /> t.PERM[T SERVICES <br /> APEX . . . . <br /> E N Y I R 0:T E-C H INC . 7844 Madison Avenue,Suite 106 • Fair Oaks,to 95628 <br /> .1.800.242.5249 Ph.916.535.0200 • Fax 916.535,0207 <br /> April 2 i <br /> p 7, 2000 <br /> Mr.`Jerry Moore _ A P R : <br /> Moore Petroleum ' <br /> ENVIPONMEN 1► _ ,' <br /> 5491 F Street � s ' <br /> Banta, California, _ ,.. PERMIT l SER1iVV� <br /> Subject: Workplan for Limited Subsurface Investigation and Proposed Pilot Testing <br /> )Former Wore Petroleum Bulk Plant - <br /> 5491 F Street <br /> Banta, California :..x <br /> Apex Project# ERA02,004. <br /> Dear Mr. Moore: <br /> Apex Envirotech, Inc. (Apex), is pleased to`provide Moore Petroleum (Moore) this Workplan for ' <br /> limited subsurface,-investigation and proposed pilot testing at the subject site (Figure l). This <br /> I� Workplan is in response to a letter from San Joaquin'County Environmental Health Division <br /> (County) dated March 9, 2000. A copyof this letteris presented in Appendix A. The proposed' <br /> investigation includes: performing an updated off-site well search; sample the off:site domestic <br /> j' well towards the east; drilling four soil borings; convert three of the four soil borings into <br /> groundwater,monitoring wells;collecting groundwater samples from each of the three new wells; <br /> sample the existing nine monitoring wells (Figure.2); and perform a:dual phase extraction pilot <br /> test. The purpose of the investigation is'to assess the lateral extent of petroleum hydrocarbons in <br /> the shallow groundwater adjacent to the'site and the vertical extent in the area around MW-8 <br /> (Figure 2). The purpose'of performing the pilot test is-to determine_ remediation alternatives in <br /> the area around well MW-8. <br /> This report is based, in part, on information obtained from Moore Petroleum, and is subject to <br /> modification;as newly acquired information may warrant. <br /> BACKGROUND <br /> Apex began work on the project with the'groundwater monitoring conducted on January 14, <br /> 1994. Prior to Apex, work conducted at the site included subsurface investigations and ' <br /> groundwatermonitoring by Earth Treatment Systems, Inc., of Manteca, California; Delta <br /> Environmental Consultants, Inc., of.Rancho Cordova, California;Nations Groundwater <br />