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ase Closure Summary Page 2 ! ': <br /> Leakis 'derground Fuel Storage Tank Foam <br /> III. Release and Site Characzataon Information (continued) <br /> Maximum Documented Contaminant Concentrations--Before and After Cleanup <br /> Contaminant Soil (ppm) Water (ppm) Contaminant Soil (Ppm) Water (ppm) <br /> Before After Before After Before After Before After ' <br /> TPH (Gas) 57 <57 <.05 Xylene 15 <15 <.0015 <br /> TPH (Diesel) N/A - - - Ethylbenzene 2.1 <2.1 <.0005 <br /> Benzene 0.4 c0.4 <.0005 Oil & Grease N/A:. - <br /> - <br /> Toluene 1.2 <1.2� c.0005 Heavy metalaft 0.14 0.14 _ ]I <br /> Other N/A - - - Other EDE ND ND <br /> Comments (Depth of Remediation, etc,) : <br /> SOIL CONTAMINATION DOCUMENTED AT TIME OF TANK REMOVAL. TWO (2) SOIL BORINGS PERFORMED, ; <br /> SOIL BELOW DETECTION LIMITS. ONE HYDROPUNCH (WATER SAMPLE) COLLECTED IN B-1 WHICH WAS � <br /> ALSO BELOW DETECTION LIMITS.- <br /> f <br /> IV. Closure <br /> Does completed corrective action protect existing beneficial uses 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 i <br /> Does corrective action protect public health for current land use? (Yes). No i <br /> Site management requirements: <br /> Should corrective action be reviewed if land use changes? (Yes) No <br /> Monitoring wells Decon=isi.oned: Yes No Number Decommis tined:N/A Number Retained:N/A <br /> List enforcement actions taken:LEVEL ONE, NOTICE OF REIMBURSEMENT SENT TO REGIONAL BOARD. <br /> List enforcement actions rescinded.- <br /> V. <br /> escinded:V. Local Agency Representative Data <br /> Name: DONNA Title:DIRECTOR OF ENV'IRONM'ENTAL HEALTH <br /> Signature; Date: — 7 <br /> VI. RWQCB Notification <br /> Data Submitted to RB: RB Response: <br /> RWQCB Staff Name:E THAYER Title:ASSOC. ENGINEER Date: <br /> VII. Additional Comments. Data, etc. <br /> -SOIL ONLY- <br /> This document and the related CASE CLOSURE LETTER, 'Shall be retained by the lead agency <br /> as part of the official site file. (08/24/93) <br /> Exhibit N Page 2 of 2 <br />