Laserfiche WebLink
4IN <br /> P� <br /> TABLE 4 <br /> SOIL GAS/VAPOR MONITORING <br /> Geweke Land Deselopment and Nfarketing <br /> 16 South Cherokee Lane, Lodi, California <br /> Units Type of Sampling Sample Locations Analytical <br /> Parameters Sample Frequency Method <br /> Oxygen gas % vapor start-up VW-1 through Field meter <br /> twice/month VW-7, MW-3, <br /> regular MW-4 <br /> monthly <br /> Carbon dioxide % %apor start-up VW-1 through Field meter <br /> taice tmonth VW-7, %IW-3, <br /> regular MW-4 <br /> monthly <br /> Methane % %apor quarterly W-3, VW-4, ASTM <br /> VW-6 <br /> Organic vapors ppnt %apor start up VW-1 through PID <br /> twicelmonth VNG 7, MW-3, <br /> regular MW 4 <br /> nionthir <br /> SOIL SAMPLING <br /> In the draft Revised Monttonng Program, the CVRNVQCB indicates that a minimum of <br /> three soil borings will be drilled around each inoculated Aell This would require 30 soil <br /> borings to be drilled each quarter GeoAudit believes this too unreasonable and unnecessary <br /> Obviously, this is excessive, both in cost and data collection <br /> Since important data has already been obtained from drilhng during the pilot study, we <br /> believe that a limited number of soil borings each quarter are sufficient to determine the <br /> remediation progress <br /> GeoAudit proposes to drill three soil borings each quarter The bonngs will be dnlled <br /> around inoculated wells Drilling will begin in November 1994 One bonng each will be <br /> drilled near VW-5, VW-2 and VW-1 Each bonng will be drilled approximately 3 feet from <br /> the inoculated well, except the boring near VW-1, which will be drilled at a distance of six <br /> feet (two soil borings were drilled near VW-1 during the pilot study) <br /> During the next sampling (February 1995), three more borings will be drilled A second <br /> boring will be dnlled near VW-5 and VW-2 at distances of six feet A boring will be drilled <br /> near VW-1 at a distance of nine feet (the fourth overall boring drilled around VW-1) Upon <br /> c.el.ar.lw.dnS.— ).c 5 <br /> GEWEKEN.w�M..,w—g 6wit 9F <br />