Laserfiche WebLink
Case Closure Summary Page 2 <br /> Leaking Underground Fuel Storage Tank Program <br /> III. Release and Site Characterization Information (continued) <br /> Maximum Documented Contaminant Concentrations--Before and After Cleanup <br /> Contaminant Soil (ppm) Water (PPB) Contaminant Soil (ppm) Water (PPB) <br /> Before After Before After Before After Before After <br /> TPH (Gas) <0.5 <0.5 ---- <50 Xylene <.05 .035 ---- <0.5 <br /> TPH (Diesel) <10 <10 ---- <50 Ethylbenzene <.05 <.005 ---- <0.5 <br /> Benzene <.05 .0052 ---- <0.5 Oil & Grease <10 <10 ---- <50 <br /> Toluene <.05 .040 ---- <0.5 Lead <5.0 ---- ---- ---- <br /> Other Other <br /> Comments (Depth of Remediation, etc.) : <br /> BULK OF IMPACTED SOIL REMOVED BY OVER-EXCAVATION. ONLY RESIDUAL LEVELS OF BENZENE, <br /> TOLUENE, AND XYLENE REMAIN. GROUNDWATER GRAB SAMPLES CONFIRM GROUNDWATER QUALITY <br /> HAS NOT BEEN IMPACTED. **SOIL ONLY** <br /> IV. Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional Board <br /> Basin Plan? YES <br /> Does completed corrective action protect potential beneficial uses per the Regional Board <br /> Basin Plan? YES <br /> Does corrective action protect public health for current land use? YES <br /> Site management requirements: NONE <br /> Should corrective action be reviewed if land use changes? NO <br /> Monitoring wells Decommisioned: N/A Number Decommisioned:N/A Number Retained: N/A <br /> List enforcement actions taken: INITIAL DIRECTIVE LETTER <br /> List enforcement actions rescinded: NONE <br /> V. Local Agency Representative Data <br /> Name: DONNA HERRN Title: DIRECTOR, ENVIRONMENTAL HEALTH DIVISION <br /> Signature: Date: <br /> VI. RWQCB Notification <br /> Date Submitted to RB: RB Response: <br /> RWQCB Staff Name: Title: 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 />