COMPLIANCE INFO_AMENDED JTD 1/5/2026

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Permit Unit Requirements for N-4070-1-11 (continued) Page 7 of 14 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 95236 N-4070-1-11 : 9/24/2025 3:25:45 PM -- ROBINSOM 56. Permittee shall conduct surface testing using an organic vapor analyzer, flame ionization detector, or other portable monitor meeting the specifications provided in the condition that references Section 63.1960(d) in this permit. Surface testing shall be conducted at all cover penetrations. Any reading of 500 ppm or more above background at any location shall be recorded as a monitored exceedance. An exceedance is not a violation of the surface methane operational standard if the following actions are taken: (1) The owner or operator shall determine the latitude and longitude coordinates of each exceedance using an instrument with an accuracy of at least 4 meters. The coordinates shall be in decimal degrees with at least five decimal places, (2) For each exceedance, cover maintenance or adjustments shall be made to the vacuum of the adjacent wells to increase the gas collection in the vicinity of the exceedance. The location shall be re-monitored within 10 days of detecting the exceedance, (3) If the re-monitoring of the location shows a methane concentration less than 500 ppm methane above background concentration, the location shall be re-monitored 1 month from the initial exceedance, and (4) If the re-monitoring shows a second exceedance, additional corrective action shall be taken and the location shall be re-monitored again within 10 days of the second exceedance. If the re- monitoring shows a third exceedance, a new well or other collection device shall be installed within 120 days of the initial exceedance. An alternative remedy to the exceedance, such as upgrading the blower, header pipes or control device, and a corresponding timeline for installation may be submitted to the APCO for approval. [40 CFR 60.8, 40 CFR 63.1958(d), and 40 CFR 63.1960(c)] Federally Enforceable Through Title V Permit 57. Permittee shall implement a program to monitor for cover integrity and implement cover repairs, as necessary, on a monthly basis. [40 CFR 63.1960(c)(5)] Federally Enforceable Through Title V Permit 58. Permittee shall comply with the following specifications and procedures for surface methane monitoring: (1) The portable analyzer shall meet the instrument specifications provided in section 6 of EPA Method 21 of appendix A of 40 CFR Part 60, except that "methane" replaces all references to "VOC," (2) The calibration gas shall be methane, diluted to a nominal concentration of 500 ppm in air, (3) The instrument evaluation procedures of section 8.1 of EPA Method 21 of appendix A of 40 CFR Part 60 shall be used, and (4) The calibration procedures provided in sections 8 and 10 of EPA Method 21 of appendix A of 40 CFR Part 60 shall be followed immediately before commencing a surface monitoring survey. [40 CFR 63.1960(d)] Federally Enforceable Through Title V Permit 59. The collection and control system shall comply with all applicable provisions of 40 CFR 63 Subpart AAAA at all times including startup, shutdown, and malfunction, and the SSM requirements of the General Provisions of 40 CFR 63, Subpart A do not apply. During periods of startup, shutdown, or malfunction the permittee shall comply with the work practice requirement specified in the condition that references 40 CFR 63.1958(e) in this permit in lieu of complying with the conditions that reference provisions of 40 CFR 63.1960 in this permit. [40 CFR 63.1930(b) and 63.1960(e)(2)] Federally Enforceable Through Title V Permit 60. "Startup" is defined as the activity of starting or attempting to start operation of the collection and control system, including all measurements, manipulations, adjustments, attempts to restore operation, as well as testing to verify proper operation of the collection and control system. Unsuccessful attempts to restart the collection and control system shall not be considered an individual shutdown. The owner/operator shall minimize emissions during startup. [District Rule 2201] Federally Enforceable Through Title V Permit 61. "Shutdown" is defined as the cessation of operation of the collection and control system. [District Rule 2201] Federally Enforceable Through Title V Permit 62. "Malfunction" means any sudden, infrequent, and not reasonably preventable failure 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 63. "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 2201] Federally Enforceable Through Title V Permit 64. Permittee shall install a sampling port and a thermometer, other temperature measuring device, or an access port for temperature measurements at each wellhead. [40 CFR 63.1961(a)] Federally Enforceable Through Title V Permit