ARCHIVED REPORTS_2011_12 - Laserfiche WebLink

Home Browse Search

1.3 STANDARD OBSERVATIONS Landfill personnel perform weekly inspections of the facility. As provided in Appendix A,these observations include identification of evidence of liquids entering or leaving the landfill, indications of ponding on the landfill or erosion of the landfill cover soils, and identification of strong landfill gas odors. No unusual conditions were identified during the first quarter 2011 monitoring period, (see signed"Certification Statement" located in Appendix A). In addition to Forward's inspections,the San Joaquin County Environmental Health Department(CEHD)performed monthly inspections at the facility on January 28, February 18, and March 31, 2011. During the inspections,the CEHD issued a Notice of Violation(NOV) for gas monitoring and control as a result of methane concentrations exceeding 5% at perimeter gas probe GP-9 during the March 31, 2011 inspection. In addition,the CEHD was not able to verify that the shredded tire material is used as alternative daily cover(ADC),and as a result, an NOV was also issued for beneficial reuse during the February 18, 2011 inspection. Forward has made adjustments to the landfill gas (LFG) extraction wells to reduce landfill gas near GP-9, and has addressed the ADC NOV. Completed inspection forms are presented in Appendix A. 1.4 SOLID WASTE MONITORING According to the Forward Landfill Operations Manager, Forward Landfill received a total of 204,897 tons of solid waste during the first quarter 2011 (Appendix A). Figure 1-2 shows the approximate location of waste placement during the monitoring period. The following types of waste were received: Non-hazardous solid waste—204,897 tons Asbestos—851 tons Sewage and wastewater sludge—3,163 tons 1.5 LANDFILL GAS MONITORING As previously discussed in Section 1.3, perimeter soil-pore gas probe GP-9 exceeded the regulatory limit of 5 percent during the March 2011 CEHD inspection. In response to elevated methane concentrations measured in this probe, Forward has made adjustments to the LFG extraction wells to reduce landfill gas near GP-9. In accordance with CCR Title 27, Section 20937(a)(1), methane monitors are installed in all buildings at the site to protect public health and safety and the environment. During the first quarter 2011, no methane was detected in any of the facilities buildings. A copy of the landfill gas monitoring probe data is provided in Appendix A. DA201 1_0050\1FA_1 Q1 Ldoex 3 Geologic Associates