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STATE OF CALIFORNIA California Integrated Waste <br /> CIWMB 3 (Rev. 4/04) Management Board <br /> INSPECTION REPORT ADDENDUM PAGE 2 OF 3 <br /> AGENCY CONDUCTING INSPECTION: San Joaquin County Environmental Health Department <br /> SITE NUMBER: 39-AA-0005 INSPECTOR: Natalia Subbotnikova <br /> SITE NAME: Corral Hollow Landfill <br /> RECEIVED BY <br /> INSPECTION DATE: 3/21/07 OPERATORa.-Y-- „L <br /> COMMENTS: <br /> 1. Violation T 27 CCR 21140-Final Cover-Phase 2 Work plan as a part of Corrective Action Plan(CAP)for extending closure <br /> cap at east side of landfill has been reviewed by the EHD with comments on January 31,2007. Waste discovered <br /> during the middle of 2005 still remains uncovered and has not been adequately closed. Continuation of <br /> violation. <br /> a. The EHD understands that San Joaquin County Public Works is working with California Regional Water Quality <br /> Control Board on the approval of work plan to delineate the lateral and vertical extend of the release of pollutants in <br /> the vadose zone and groundwater.This issue is still not resolved. <br /> 2. AC T 27 CCR 20919.5-Explosive Gas Control-Methane gas level at GW-6 intermediate probe measured at 2.6%by <br /> volume of air at the property boundary. <br /> a.Explosive gas shall not exceed 5%CH4 at boundary. <br /> b.Take adequate measures to decrease gas level at the property boundary. <br /> 3. AC T 27 CCR 21145-Slope Stability-Observed the possible accumulation of rain water on the southwest and southeast <br /> sides of the slope.EHD is resurvey the site with San Joaquin County Public Works. <br /> a. Provide slope stability to prevent ponding. <br /> b. Maintain the final cover as necessary to correct the effects of settlement or other adverse factors. <br /> 4. AC T 27 CCR 20921 -Gas Monitoring and Controls-Well# 1 will require relocation because the screened interval is <br /> submersed in H2O. <br /> a. Install the well in the closest location near the original location that is not subject to the perched water or determine <br /> the depth to ground water and construct the well with the screen interval above the perched ground water. <br /> b. Conduct a video investigation into the remaining gas monitoring probes to assess the condition of the probes. <br /> c. Submit a work plan to EHD for review and ap removal. <br /> d. The EHD needs to be present when the site work takes place.Notify the EHD 48 hours in advance of any site work. <br /> INSPECTOR SIGNATURE: ,X" DATE: %`� <br />