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Permit Unit Requirements for N-4070-1-10 (continued) Page 6 of 9 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-4070-1-10 : Jan 9 2023 2:37PM -- YOSHIMUJ 54. Permittee shall submit a report to the District, at least once every six months, that contains the following: 1) Value and length of time for each exceedance of applicable parameters monitored under 40 CFR 60.756(a), (b), (c), and (d); 2) Description of duration of all periods when the gas stream is diverted from the flare through a bypass line or the indication of bypass flow as specified under 40 CFR 60.756; 3) Description and duration of all periods exceeding 1 hour when gas is delivered to the flare and the fare is not operating, and length of time the flare was not operating; 4) All periods when the collection system was not operating in excess of five days; 5)The location of each exceedance of the 500 parts per million methane concentration as provided in 40 CFR 60.753(d) and the concentration recorded at each location for which an exceedance was recorded in the previous month; and 6) The date of installation and the location of each well or collection system expansion added pursuant to 40 CFR 60.755(a)(3), (b), and (c)(4). [40 CFR 60.757(f) and 40 CFR 63 Subpart AAAA] 55. Permittee shall keep records of the design capacity report which triggered 40 CFR 60.752(b) requirements, the current amount of solid waste in-place, and the year-by-year waste acceptance rate. [40 CFR 60.758(a) and 40 CFR 63 Subpart AAAA] 56. Permittee shall keep records of the following data, as measured during the initial performance test or compliance determination: 1) The maximum expected gas generation flow rate as calculated per 40 CFR 60.755(a)(1); 2) The density of wells, horizontal collectors, surface collectors, or other gas extraction devices as determined using the procedures specified in 40 CFR 60.759(a)(1); 3) For each enclosed flare, the average combustion temperature measured at least every 15 minutes and averaged over the same time period for the source test; and 4) For each enclosed flare, the percent reduction of NMOC determined as specified in 40 CFR 60.752(b)(2)(iii)(B). [40 CFR 60.758(b)(1) and (2) and 40 CFR 63 Subpart AAAA] 57. Permittee shall keep continuous records of the equipment operating parameters specified to be monitored in 40 CFR 60.756, as well as up to date records of operation during which the parameter boundaries established during the most recent performance tests are exceeded. For each enclosed flare, all 3-hour periods of operation during which the average combustion temperature was more than 28 degree Celsius (or 50 degrees Fahrenheit) below the average combustion temperature during the most recent performance test shall constitute an exceedance and shall be recorded and reported under 40 CFR 60.757(f). [40 CFR 60.758(c) and 40 CFR 63 Subpart AAAA] 58. Permittee shall keep, for the life of the collection system, a plot map showing each existing and planned collector in the system and providing a unique identification location label of each collector. Permittee shall keep records of the installation date and location of all newly installed collectors as specified under 40 CFR 60.755(b). Permittee shall keep records of the date of disposition, amount, and location of asbestos-containing or non-degradable waste excluded from collection as provided in 40 CFR 60.759(a)(3)(i) as well as any non-productive areas excluded from collection as provided in 40 CFR 60.759(a)(3)(ii). [40 CFR 60.758(d) and 40 CFR 63 Subpart AAAA] 59. Permittee shall keep records of all collection and control system exceedances of the operational standards in 40 CFR 60.753, the reading in the subsequent month and whether or not the second reading is an exceedance, and the location of each exceedance. [40 CFR 60.758(e) and 40 CFR 63 Subpart AAAA] 60. Permittee shall site active collection wells, horizontal collectors, surface collectors, and other extraction devices at a sufficient density throughout all gas producing areas of the landfill using the procedures listed in 40 CFR 60.759(a), unless alternative procedures have been approved by the District. [40 CFR 60.759(a) and 40 CFR 63 Subpart AAAA] 61. The collection devices within the landfill interior and along the perimeter areas shall be certified to achieve comprehensive control of surface gas emissions by a professional engineer. The following issues shall be addressed in the design: depths of refuse, refuse gas generation rates and flow characteristics, cover properties, gas system expandability, leachate and condensate management, accessibility, compatibility with filling operations, integration with closure end use, air intrusion control, corrosion resistance, fill settlement, and resistance to the refuse decomposition heat. The design shall address landfill gas migration issues and augmentation of the collection system through the use of active or passive systems at the landfill perimeter and exterior. [40 CFR 60.759(a)(1) and (2) and 40 CFR 63 Subpart AAAA]