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Mr. Brendan Kenny <br />April 12, 2024 <br />Page 2 <br />limit for this instrument is approximately 0.10 percent by volume. Compliance testing for gas <br />monitoring probes is included below. <br />Gas Monitoring Probe Testing Procedures <br />Connect sample tubing, open test valve; observe pressure and record data. <br />For probes 20 feet deep or less, turn on sample pump, observe and record methane, oxygen, <br />and carbon dioxide gas concentrations, when readings have stabilized for 30 seconds. <br />For probes more than 20 feet deep, turn on sample pump, extract a minimum of one probe <br />volume, observed and record methane, oxygen, and carbon dioxide gas concentrations, when <br />readings have stabilized for 30 seconds. <br />Close test valve, disconnect sample instruments and secure sample location. <br />GCCS OPERATIONS AND MAINTENANCE <br />SCS Engineers (SCS) is contracted by Forward to conduct the Operation and Maintenance (O&M) of <br />the GCCS at the Landfill. During the first quarter of 2024, the following O&M activities were <br />conducted: <br />Quarterly monitoring of LFG probes was conducted; <br />Ongoing wellfield monitoring and tuning of the GCCS was performed; <br />Inspection of condensate sumps and pumps for proper operations was conducted. Any <br />required maintenance as a result of the inspections was performed; <br />There were no known GCCS system failures during the first quarter of 2024. The GCCS <br />operated continuously for 24 hours per day. The flare station experienced standard <br />malfunction, shutdown and startups, but there was no significant downtime; and <br />The instantaneous total flow rate of LFG on March 9, 2024 and March, 15, 2024, was 1,228 <br />standard cubic feet per minute (scfm) at the LFG-to-energy (LFGTE) facility, 2,609 scfm at <br />Flare A-1, and 1,328 scfm at Flare A-2.