Laserfiche WebLink
W. Grafgna Jr. and William Graffigna -3- May 13, 2010 <br /> Claim No. 13578 <br /> B. In-Situ Soil Remediation: <br /> • METHOD: soil vapor extraction <br /> • DURATION: Oct 06 through present <br /> • INITIAL INFLUENT CONCENTRATION: 7,300 ugll TPHG, 5,900 ugll MTBE <br /> CURRENT INFLUENT CONCENTRATION: <50 ug/l TPHG, 63'ug/l MTBE <br /> C. Groundwater Remediation: <br /> METHOD: groundwater extraction <br /> DURATION: Sep 08 through present <br /> • VOLUME OF GROUNDWATER REMOVED: 1.86 million gallons <br /> • MASS OF TPH-G REMOVED: 153 pounds MTBE . <br /> CONCENTRATION OF GROUNDWATER: 350 ugll (Apr 2010) <br /> D. Groundwater Trends: <br /> • ,..=MTBE trends are shown below ., <br /> ' }J .E}ly�`G � a d �s�- n a -: .G � a � •? N pa yr syf:4 3t+ :� <br /> , f METHYL T�EF2T�UTYL ETHER{MTBE) results for MW2 �; <br /> y <br /> L. <br /> U T <br /> 7666 � � � Ex h 21< r4 R s < <br /> ri_ +. <br /> PN-A'1001'tl MOW <br /> 4440 <br /> n' <br /> E000 � +ar 'F`" ..''i^ r 'Jon ia✓'-0"� xi'.--r^s,.�ws �, -i- <br /> y5�� r ��METNYL T,ERT BUTYL E7H�R{MTBE) �Trend r <br /> s .. <br /> California Environmental Protection Agency <br />