Laserfiche WebLink
AL,tJAU <br /> Post-it;Fax NO& 7671 D pages <br /> To Fro <br /> CoJDept. Co. P <br /> Report-Soil and Groundwater Investigation <br /> Phone# Phone# Herman&Helen's Marina <br /> September 30. 1996 <br /> Fax# 1 ,1 a �I. Fax# Page-10- <br /> 5.0 REC-- tdo-61A2Z tG F0u GECrEluelD _ jV01 awtC/ae-st ar W IFAk . <br /> Based on the data presented above, Condor recommends that three (3) monitor wells be <br /> installed at the site at locations shown in Figure 3, Appendix A. The monitor wells will be used to <br /> determine the groundwater gradient and flow direction and to monitor groundwater contaminant <br /> concentrations (TPH-G, BTEX, MTBE, and TEPH). The monitor wells should be monitored <br /> on a quarterly basis for at least one year. <br /> In addition, the site should be evaluated in accordance with the Standard Guide for Risk Based <br /> Corrective Action (RBCA) ASTM E1739-95 to determine if the site warrants closure or active <br /> remediation, based on the potential threat to human health. Risk based screening levels should be <br /> reviewed and contaminant transport pathways, and exposure pathways should be assessed. The <br /> adjacent agricultural property and the river should be assessed for potential impact. Fate and transport <br /> modeling for contaminant migration within the vadose zone and the groundwater should be conducted. <br /> The results of the previous chemical analyses and geotechnical testing may be used in the fate <br /> transport modeling. Based on the results of the groundwater monitoring, fate and transport analyses <br /> and the exposure assessment, site closure will be requested, if warranted. If you need additional <br /> information or have any questions, please call (209) 668-9234. <br /> Q�pFESSIONq� <br /> Respe lly submitted, P� OOH <br /> Q3 <br /> 3 <br /> x <br /> 0 <br /> x , •30.98 <br /> J� es Robert J. Jo P C10- <br /> roject eologist California Reg ` !0 CPUF4� <br /> Professional Engin <br /> #51592 <br /> ENVIRONMEN-IAL HEALTH DIVISION <br /> 304 E. Weber Ave.Third Floor <br /> H&H:1H&H2.RPT P. O. Box 388,Stoc n CA 95201-0388 <br /> Approved LJ <br /> Denied <br /> Conditions� / 1IWYVY( kxoIAtN <br /> -�- (1,��.a��. 01A <br /> Date 1_t-t��-D�lp by <br /> • Cm >rd' �kwU1N 6TQ <br /> j�• CONDOR <br />