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Permit Unit Requirements for N-4070-1-4 (continued) Page 2 of 3 11. "Malfunction" means any suddet requent, and not reasonably preventable e of air pollution control equipment, process equipment, or a process to operate in a normal or usual manner. Failures that are caused in part by poor maintenance or careless operation are not failures. [40 CFR 60.2] Federally Enforceable Through Title V Permit 12. "Maintenance" is defined as work performed on the collection and/or control system in order to ensure continued compliance with all applicable Rules and Regulations, and also to prevent failures and malfunctions. The owner/operator shall minimize emissions during maintenance periods. [District Rule 22011 Federally Enforceable Through Title V Permit 13. In the event that the collection or control system becomes inoperable, the gas mover equipment(as defined in 40 CFR 60.751) shall be shut down and all valves in the collection and control system contributing to venting of the landfill gas to the atmosphere shall be closed within one hour. [40 CFR 753(e)] Federally Enforceable Through Title V Permit 14. The collection system shall be operated such that the methane concentration is less than 500 parts per million above background at the surface of the landfill. Compliance with this surface methane operational standard shall be demonstrated using the procedures outlined in 40 CFR 60.755(c) within 180 days of installation and startup of the collection and control system and quarterly thereafter. [40 CFR 60.753(d), 40 CFR 60.755(c), and 40 CFR 60.8] Federally Enforceable Through Title V Permit 15. The owner/operator shall install, calibrate, maintain, and operate a meter that measures and records the landfill gas flow rate into the flare at least once every 15 minutes. This meter shall also be capable of measuring the landfill gas flow rate that might bypass the flare in the event of equipment malfunction or maintenance. [40 CFR 60.756(c)(2)] 16. The flare's tip velocity shall be less than 18.3 m/sec (60 ft/sec), as determined by 40 CFR 60.18(f)(4). The net heating value of the landfill gas being combusted shall not be less than 200 Btu/scf, as determined by 40 CFR 60.18(f)(3). The flare's tip velocity and the net heating value of the landfill gas shall be determined N�ithin 180 days of installation and startup of the collection and control system and annually thereafter. [40 CFR 60.18(c)(4)(1) and 40 CFR 60.8] Federally Enforceable Through Title V Permit 17. The flare's discharge height shall be at least 30 feet above grade. [District Rules 2201 and 41021 18. There shall be no visible emissions from the flare except for periods not exceeding a total of five minutes during any consecutive two hours. Visible emissions shall be determined using EPA Method 22 and a two-hour observation period. [40 CFR 60.18(c)(1)] Federally Enforceable Through Title V Permit 19. The flare shall be operated with a flame present at all times while gas is being vented to it. The presence of a flame shall be continuously monitored using a thermocouple, ultraviolet sensor, or any other equivalent device located at the pilot light or the flame itself. The flame's presence shall be recorded at least once every 15 minutes. [40 CFR 60.18(c)(2) and 40 CFR 60.756(c)(1)] Federally Enforceable Through Title V Permit 20. The flare shall be operated at all times when landfill gas is vented to it. [40 CFR 60.18(e)] Federally Enforceable Through Title V Permit 21. The landfill gas collection and control system shall comply with the operational standards of 40 CFR 60.753, the compliance provisions of 40 CFR 60.755, the monitoring provisions of 40 CFR 60.756, the reporting and record keeping requirements of 40 CFR 60.757 and 60.758, and the requirements of 40 CFR 60.759 (for active collection systems). [40 CFR 60.752(b)(2)(10, 60.753, 60.755, 60.756, 60.757, 60.758, 60.759, 62.14353 and 62.14354(b)] Federally Enforceable Through Title V Permit 22. Soil with VOC content of 50 ppm by weight or greater shall not be used as daily cover. [District Rule 4651] Federally Enforceable Through Title V Permit 23. The owner or operator shall comply with the requirements of 40 CFR 63.1960 through 63.1985, and with the general provisions of 40 CFR part 63, as specified in table 1 of 40 CFR part 63, subpart AAAA. [40 CFR 63.1955(6) and 63.1980(b)] Federally Enforceable Through Title V Permit 24. The owner or operator shall develop and implement a written startup, shutdown and malfunction (SSM) plan according to the provisions of 40 CFR 63.6(e)(3). A copy of the SSM plan shall be maintained on site. Failure to write, implement or maintain a copy of the SSM plan is a deviation from the requirements of 40 CFR part 63, subpart AAAA. [40 CFR 63.19601 Federally Enforceable Through Title V Permit PERMIT UNIT REQUIREMENTS CONTINUE ON NEXT PAGE These terms and conditions are part of the Facility-wide Permit to Operate. Facility Name FOOTHILL SANITARY LANDFILL Location 6484 N WAVERLY RD,LINDEN,CA N-4070-1-4 App 192ol± 62', D,_RISR