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California Department of Resources Recycling and Recovery Log-sheet <br /> Cal Recycle 100 I Street-Sacramento, ig 95814 <br /> Waste Permitting Compliance&Mitigation Division <br /> (Engineering Support Branch) <br /> Project: North County Landfill Instrument: QED GA 5000, flow specification = 550 cc/min = 0.194 cu ft/ min, field calibration completed <br /> Location: 17720 E Harney Lane, Lodi, CA 95240 Serial #: G509028 Calibration Date: 9/26/2025 <br /> Date: 7/30/2026 Field Staff: Garrett Backus <br /> Weather Conditions: Clear, 70 degrees F Comments: Field Calibration 2: 4% 02, balance N2, part# QED CG-00-00, lot#4517081, C of A on file <br /> Bar. Pressure: 29.74 inches Hg Field Calibration 3: 15% CH4, 15% CO2, lot#304-403559228-1, C of A on file. <br /> • • Field Observations <br /> • • • • <br /> - . • •LWMK(MIL <br /> example 100 0.5 0.136 GA-5000 0.0194 7.02 <br /> is 5.5 0.1875 0.001 GA-5000 0.0194 0.05 70 upper segment <br /> is 2.5 1.0000 0.014 GA-5000 0.0194 0.70 70 lower segment <br /> is 8 0.015 GA-5000 0.76 8:09 AM 8:12 AM 70 0.0 0.0 18.7 2.4 78.9 N/A N/A total purge volume and time <br /> 11 25.5 0.1875 0.005 GA-5000 0.0194 0.25 70 upper segment <br /> 11 2.5 1.0000 0.014 GA-5000 0.0194 0.70 70 lower segment <br /> 11 28 0.019 GA-5000 0.95 8:12 AM 8:15 AM 70 0.0 0.0 21.1 0.2 78.8 N/A N/A total purge volume and time <br /> 1 D 44.5 0.1875 0.009 GA-5000 0.0194 0.44 70 upper segment <br /> 1 D 2.5 1.0000 0.014 GA-5000 0.0194 0.70 70 lower segment <br /> 1 D 47 0.022 GA-5000 1.14 8:15 AM 8:17 AM 70 0.0 0.0 21.0 0.1 79.0 N/A N/A total purge volume and time <br /> 2S 5.5 0.1875 0.001 GA-5000 0.0194 0.05 70 upper segment <br /> 2S 2.5 1.0000 0.014 GA-5000 0.0194 0.70 70 lower segment <br /> 2S 8 0.015 GA-5000 0.76 8:21 AM 8:24 AM 70 0.0 0.0 17.6 3.6 78.8 N/A N/A total purge volume and time <br /> 21 25.5 0.1875 0.005 GA-5000 0.0194 0.25 70 upper segment <br /> 21 2.5 1.0000 0.014 GA-5000 0.0194 0.70 70 lower segment <br /> 8/3/2026 amc <br />