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ease Closure Summary page 2 <br /> Leakii 3nderground Fuel Stora E <br /> a Tank ]ram <br /> i <br /> III. Release and Site Characterization Information (continued) <br /> Maximum Documented Contaminant Concentrations--Befare and After Cleanup <br /> Contaminant Soil (ppm) Water {ppza} Contamin t Before {After Before Auer <br /> Before After Before After <br /> TPH (Gas) 17000 NS FP .130 Xylene 3000 NS FP ND <br /> TPH (Diesel) 3thylberX=erLQ 490 NS FP ND <br /> Benzene 220 NS FP ND oil a Grease <br /> Toluene 1100 NS FP ND Heavy meta s <br /> flGhBr other <br /> Comments (Depth of Remediation, etc.) : Free product at site July-Now 1987 and May-July <br /> 1988. Vapor extraction conducted from July 1991 through March 1996. Groundwater sample <br /> result non detect for contaminants since March 1995 except for isolated low level hits. <br /> Confirmation soil boring$ were not required since £ t-her remediation. would not be <br /> cost effective. vapor extraction is at asymptotic levels- <br /> IV, Closure <br /> Does completed corrective action protect existing beneficial use& per the Regional Board <br /> Basin Plan? (Yes) No <br /> Does completed corrective action protect potential beneficial uses per the Regional Board <br /> Basin Plan? (Yes) Na <br /> Does corrective action protect public health for current land use? (Yes) No <br /> Site management requirements: None <br /> Should corrective action be reviewed if land use changes? (Yea } No <br /> Monitoring wells Decommisioned: Yes NC Number B cammisioned: 'j NumberR �tained: <br /> List enforcement actions taken: NOR 7/26/89 <br /> List enforcement actions rescinded: None <br /> V. Local Agency Representative Data <br /> Name: <br /> � v�o� U a u r c L•T c:. <br /> Title- b;:�c r c E+.v s ren m�� <br /> Signature• Date: 2 �' <br /> VI. R ® otification <br /> Data tted to RB: iotl�- RB Response: nC-LLrre,,nC,P, <br /> RWQCB Staff Name: -�, ejv Title: "' , 5%r-aer« L-I Date: <br /> v'TI. Additional Comments, Data, etc. <br /> ji <br /> This document and the related CASE CLOSURE LSTTBR, shall be retained by the lead agency <br /> as part of the official site file. (08/24/93) <br /> Hxxhibit N Page 2 of 2 <br />