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Mr. Brendan P. Kenny, RG <br /> Corrective Action Program Update Second Quarter 2026 <br /> July 10, 2026 <br /> Page 3 <br /> Date Gas Probe Observed VOC <br /> Exceedances ( bv) <br /> 26 June 2026 GP-5AM 200 <br /> 26 June 2026 GP-5AS 600 <br /> 26 June 2026 GP-6AM 385000 <br /> 26 June 2026 GP-6AS 1300 <br /> 26 June 2026 GP-1 OD 98200 <br /> 26 June 2026 GP-1 OM 104900 <br /> 26 June 2026 GP-10S 15200 <br /> 26 June 2026 GP-l ID 600 <br /> 26 June 2026 GP-l 1 M 100 <br /> 26 June 2026 GP-11 S 100 <br /> 26 June 2026 GP-12D 500 <br /> 26 June 2026 GP-12M 300 <br /> 26 June 2026 GP-12S 100 <br /> Based on the requirements in the CAO and on the monitoring results, probes GP-IAD, GP-IAM, <br /> GP-IAS, GP-2AD, GP-2AM, GP-2AS, GP-3AD, GP-3AM, GP-3AS, GP-4AD, GP-4AS, GP- <br /> 5AD,GP-5AM,GP-5AS,GP-6AM,GP-6AS,GP-1 OD,GP-I OM,GP-I OS,GP-11 D,GP-11 M,GP- <br /> 11 S, GP-12D, GP-12M and GP-12S will require annual TO-15 sampling due to methane <br /> concentrations exceeding I percent by volume and/or VOC concentrations exceeding 10 ppbv. <br /> The TO-15 sampling of these probe intervals will be conducted on an annual basis in accordance <br /> with the CAO and submitted as part of the Landfill Gas Extraction System Optimization Report. <br /> CONTROL SYSTEM PERFORMANCE MONITORING <br /> The site sends its LFG to two onsite flares for combustion and to the onsite landfill gas to energy <br /> (LFGTE)plant operated by Ameresco. SCS operated and monitored the GCCS including the flares <br /> in the second quarter of 2026. <br /> The average flow rates to FL-100 and FL-150 were 1,299 scfm and 1,520 scfm, respectively. The <br /> average methane content was 52.9%volume at flare FL-100 and 52.8% at flare FL-150. <br /> Flare FL-100 had a total run time of 681.4 hours and a total downtime of 38.6 hours in April 2026, <br /> a total run time of 744.0 hours and no downtime in May 2026 and, a total run time of 717.6 hours <br /> and a downtime of 2.4 hours in June 2026. The total downtime during the quarter was 1.9%; also, <br /> the maximum adjusted flow recorded at Flare FL-100 was 3,785 standard cubic feet per minute <br /> (scfm). <br /> Flare FL-150 had a total runtime of 682.0 hours and a total downtime of 38.0 hours in April 2026, <br /> a total run time of 726.9 hours and downtime of 17.1 hours in May 2026 and, a total runtime of <br /> 717.6 hours and down time of 2.4 hours in June 2026. The total downtime during the quarter was <br /> Q2 Corrective Action Program Update-2026 <br /> engineers I scientists I innovators <br />