Laserfiche WebLink
a <br /> C A M B R I A <br /> le' <br /> groundwater monitoring and well development report is <br /> presented as Appendix C <br /> Groundwater Depth Blaine measured static depth to water at 59 37 fbg on <br /> October 27, 1999 <br /> HYDROCARBON DISTRIBUTION IN SOIL <br /> Soil samples collected from boring MW-1 at depths of 40, 65, and 75 fbg did not contain <br /> detectable levels of TPHg and BTEX MTBE was detected only in the 40 foot sample at a <br /> concentration of 0 0208 ppm by EPA Method 8260B <br /> The soil analytical data are summarized on Table 2 and presented on Figure 2 The certified <br /> analytical reports are included in Appendix D <br /> HYDROCARBON DISTRIBUTION IN GROUNDWATER <br /> Groundwater samples collected from well MW-1 contained MTBE at a concentration of 22 1 <br /> parts per billion (ppb) by EPA Method 8020 EPA Method 8260A confirmed the presence <br /> of MTBE at a concentration of 21 1 ppb TPHg was detected at a concentration of 75 8 ppb <br /> and benzene was not detected <br /> Groundwater chemical analytical data is presented on Figure 3 and on a summary table in <br /> Blaine s report (Appendix C) Additional groundwater analytical data is presented on <br /> Table 3 <br /> CONCLUSIONS <br /> Well MW-1 was installed to determine if petroleum hydrocarbons and MTBE have impacted <br /> groundwater beneath this site The well confirmed the presence of TPHg and MTBE in <br /> groundwater at this site <br /> RECOMMENDATIONS <br /> Cambria recommends additional sampling of this well to confirin the presence and <br /> concentration of petroleum hydrocarbons and MTBE We will place this well on a quarterly <br /> •� monitoring and sampling schedule beginning the first quarter of 2000 <br /> 241-1359 4 <br />