Laserfiche WebLink
*,. _ <br /> Chevron Products �"'� -=3- �''� March 3, 2011 <br /> Claim No. 5820 <br /> A. Soil Excavation: unknown volume <br /> B. In-Situ Soil/ Groundwater Remediation: w_ ;- <br /> w ,v <br /> • METHOD 1: dual phase extraction pilot test <br /> • DURATION: 4 days in 2003 <br /> h MASS OF TPH-G REMOVED:,, 22 pounds,_:.-,,.. <br /> • METHOD 2: ozone sparging pilot test <br /> C. Groundwater Trends.: Benzene trends are`shown below,source area and down <br /> ..gradient, respectively: <br /> BENZENE Results for MW-15300 <br /> `. k <br /> - <br /> III f <br /> 2000 <br /> - <br /> � <br /> =,1000-: <br /> ss <br /> 500 <br /> 11 t <br /> z,a ^.. rrnxm.•.v,µu � <br /> - <br /> .ss' w <br /> - <br /> - .I BENZENEF <br /> i <br /> BENZENE Results for MW-7. <br /> so <br /> 45, <br /> 40 <br /> 35 <br /> T <br /> 10 1 <br /> 0 <br /> a _ <br /> VII. COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description: former retail gasoline station, empty lot <br /> - 41 <br /> B. Site History: the extent of groundwater contamination.is defined <br /> C.. Groundwater Monitoring Summary: strong monitoring,history <br /> ° <br /> California Environmental Protection Agency <br /> �.aRecycled Paper f' <br />