Laserfiche WebLink
Quick-N-Save #2 -2- September 16, 2010 <br /> Claim No. 15567 <br /> Monitoring Well Information <br /> Well Designation Date Installed Screen Interval Most Recent DTW <br /> (feet bgs) (feet bgs) <br /> Jan 2010 <br /> MW1 Mar 04 25-45 26.16 <br /> MW2 Mar 04 25-45 25.66 <br /> MW3 Mar 04 25-45 26.43" <br /> EW1 Aug05 30-50 - <br /> Sheen noted <br /> Petroleum H drocarbon Constituent Concentration <br /> Contaminant Soil (mg/kg) Water (u /L) WQOs <br /> Maximum Latest Maximum Latest (ug/L) <br /> (Jan 2010 <br /> TPHg NA NA 3,800,000 610,000 5 <br /> Benzene NA _ NA 120,000 110,000 0.15 <br /> Toluene NA NA 370,000 1,400 42 <br /> Eth (benzene NA NA 460,000 24,000 29 <br /> Xylenes NA NA 2,400,000 22,000 17 <br /> MTBE NA NA 450,000 450,000 5 <br /> TBA NA NA 110,000 110,000 12 <br /> 1,2-DCA NA NA 460 180 0.5 <br /> NA: Not Analyzed, Not Applicable or Data Not Available <br /> mg/kg: milligrams per kilogram, parts per million <br /> ug/L: micrograms per liter, parts per billion <br /> WQOs: Water Quality Objectives <br /> ' Data from GeoTracker, wells <br /> Site Description <br /> The Site is located in south central Stockton, California. The Site is comprised of an active retail <br /> gasoline station and mini market with two fuel islands. The Site is bounded by EI Dorado Street <br /> to the east, Delhi Street to the north and a residential community to the west and south. The <br /> surrounding land use is mixed residential and commercial. <br /> Site History/Assessments <br /> The Site has been an active gas station since at least the 1990's. In November 1999, fuel <br /> hydrocarbons were detected during a tank removal. To date, three monitoring wells have been <br /> installed and monitored regularly. A Site map showing the location of the current USTs, <br /> monitoring wells and groundwater level contours is provided at the end of this summary. <br /> Remediation Summary <br /> • Free Product: MW3 has contained product sheen as recently as January 2010. <br /> • Soil Excavation: An estimated 522 cubic yards of impacted soil were removed and <br /> disposed offsite in 2000. <br /> • In-Situ Soil Remediation: Soil vapor extraction has been proposed and construction is <br /> underway. <br /> • Groundwater Remediation: No groundwater remediation has been conducted. <br /> CaGroinia En vironmenta/Protection Agency <br /> Za Recycled Paper <br />