Laserfiche WebLink
Y <br /> The sparging point is within the old tank pit See Figure 1 for the AS well See Table 5 for <br /> the vapor input The sparger is under repair and is not operating at this time <br /> The contamination from this site is TPH and chemicals related to gasoline, but there is no <br /> MtBE or other oxygenates related to the tanks on this property <br /> Dissolved oxygen levels were recorded this quarter at this site The levels were <br /> measured with a calibrated YSI model 51 B meter by placing the sensor 5 feet below the, <br /> surface of the water table after the bailing of the wells The measured levels are shown <br /> on Table 3A <br /> VAPOR EXTRACTION SYSTEM <br /> A total of 46411 pounds of gasoline has been removed since the beginning of this project <br /> See Table 5 At present we are reviewing a carbon treat system to lower the cost of <br /> sparging <br /> Conclusions <br /> We will continue to monitor this site The next monitoring event will take place in January <br /> 2004 <br /> Enclosed is a Hazardous Waste Manifest showing the purged water was disposed of <br /> • properly <br /> Yours truly, <br /> John Cussen <br /> RG #6506 <br /> Enclosures <br /> 6 Tables <br /> 4 Figures <br /> 2 Laboratory Reports and Chain of Custodies <br /> 13 Sample Sheets <br /> CGG Water Sampling Protocols <br /> cc Mr Roger Liston, Darpetro, Inc <br /> Mr James Barton, RWQCB <br /> • <br />