Laserfiche WebLink
Mr. M. Scott Mansholt—CEMC <br /> Third Quarter 2005 Groundwater Monitoring and Sampling Report October 25, 2005 <br /> Vernalis Pump Station, Vernalis,CA Page 6 of 6 <br /> MW-4, and MW-5. Low concentrations of some PAHs were detected in samples from MW-6 <br /> and MW-7. Based on the monitoring and sampling results, it appears that the petroleum <br /> hydrocarbons are stable and not migrating laterally. The oleophilic sock in MW-1 will be <br /> monitored quarterly and replaced as necessary. SAIC will continued quarterly monitoring and <br /> sampling of wells MW-1 through MW-7 for one hydrogeologic cycle (ending second quarter <br /> 2005) as recommended in the approved workplan dated June 29, 2004. <br /> CLOSING <br /> If you have any questions regarding this report, please call Chris Dennis at(916) 979-3866. <br /> Sincerely, <br /> SCIENCE APPLICA TIONS INTERNA TIONAL CORPORA TION (� <br /> Barrett Kaasa Christopher B. Dennis, P.G. r1AL. <br /> Staff Geologist Senior Geologist � y�0 GFO�O <br /> CHRISTOPHER ' <br /> Enclosures: It $ { <br /> Figure 1: Site Vicinity Map * DENNIS <br /> Figure 2: Combined Site Map No.7184 <br /> ,9 <br /> Figure 3: Potentiometric Surface Map—July 18, 2005 CF CA1 SFO <br /> Figure 4: Petroleum Distribution in Groundwater—July 19, 2005 <br /> Table 1: Groundwater Elevation Data and SPO Thickness Measurements Expires August 31 2 <br /> Table 2: Groundwater Analytical Results -THPd,TPHg, and BTEX <br /> Table 3: Groundwater Analytical Results -PAI-Is <br /> Attachment A: Field Data Sheets <br /> Attachment B: Laboratory Chemical Analytical Report <br />