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fl <br />C <br />n <br />C <br />r <br />D. On-site residence south of access road: <br />- Crawl space below building <br />- Electrical conduit entry point within the building <br />Monitoring Procedures <br />Parameters <br />Combustible gas concentration will be measured with instruments utilizing infrared absorption, <br />catalytic combustion, or thermal conductivity. <br />Combustible gas concentration (percent by volume as methane) will be recorded. If catalytic <br />combustion is used, oxygen will also be measured and recorded to verify sufficient oxygen to <br />enable the catalytic combustion feature to function. <br />Monitoring data will be recorded on monitoring forms (Appendix A). <br />Frequency <br />The points of compliance will be monitored quarterly, or more often as needed. <br />Reporting <br />Monitoring results will be reported quarterly to the San Joaquin County Environmental Health <br />Department and to the California Integrated Waste Management Board. The report will include <br />the combustible gas concentrations at all points of compliance (tabular form), a location drawing <br />that shows points of compliance, and weather conditions. <br />Foothill Landfill Methane Monitoring 3 Public Works/Solid Waste <br />September 15, 2003 County of San Joaquin <br />p <br />