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California Department of Resources Recycling and Recovery Log-sheet Caffiecycleo1001 (Street-Sacramento,CA 95814 Waste Permitting Compliance&Mitigation Division (Engineering Support Branch) Project: Foothill Sanitary Landfill Instrument: QED GA 5000, flow specification = 550 cc/min = 0.194 cu ft/ min, field calibration done at time of sampling Location: 6484 N Waverly Road, Linden, CA 95236 Serial #: G510512 Calibration Date: 3/28/2025 Date: 1/29/2026 Field Staff: Garrett Backus Weather Conditions: Clear, fog in low-lying areas, 41 degrees F Comments: Field Calibration 1: Fresh Air Bar. Pressure: 30.10 inches Field Calibration 2: 4% 02, balance N2, part# QED CG-00-00, lot#4220617, C of A on file Field Calibration 3: 50% CH4, 35% CO2, part#QED CG-50-35, lot#4307601, C of A on file. • • • ' - - Field Observations OWN . . example 100 0.5 0.14 GA-5000 0.0194 7.0 119S 10 1 0.05 GA-5000 0.0194 2.8 7:51 AM 7:54 AM 41 0.0 0.0 19.0 0.5 80.5 N/A N/A 1191 33 1 0.18 GA-5000 0.0194 9.3 7:54 AM 8:04 AM 41 0.0 0.0 19.4 0.6 80.0 N/A N/A 119D 63 1 0.34 GA-5000 0.0194 17.7 8:04 AM 8:22 AM 41 0.0 0.0 20.1 0.5 79.4 N/A N/A 120S 10 1 0.05 GA-5000 0.0194 2.8 8:26 AM 8:29 AM 41 0.0 0.0 20.6 0.5 78.9 N/A N/A 1201 48 1 0.26 GA-5000 0.0194 13.5 8:30 AM 8:44 AM 41 0.0 0.0 20.5 0.5 78.9 N/A N/A 120D 91 1 0.50 GA-5000 0.0194 25.6 8:44 AM 9:10 AM 41 0.0 0.0 20.4 0.4 79.1 N/A N/A Notes: (1)Yellow highlighted columns are calculated from non-highlighted inputted data. (2) Purge time: to determine seconds, multiply the number after decimal by 60. For example, for 1.2 minutes, multiply 0.2 by 60 = 12. Total purge time then is 1 minute, 12 seconds. (3) Start Time: Record time when meter is turned on to purge. (4) End Time: Record time when final measurements are taken. (5) Initial CH4 is the highest reading exhibited anytime during the purge window. 1/29/2026 amc