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'Recycle California Department of Resources Recycling and Recovery Log-sheet <br /> 1001 Street-Sacramento,CA Recycling <br /> Waste Permitting Compliance 8 Mitigation Division <br /> (Engineering Support Branch) <br /> 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 <br /> Location: 6484 N Waverly Road,Linden,CA 95236 Serial#: G510512 Calibration Date: 3/25/2026 <br /> Date: 5/6/2026 Field Staff: Garrett Backus <br /> Weather Conditions: Clear,68 degrees F Comments: Field Calibration 1: Fresh Air <br /> Bar.Pressure: 29.83 inches Field Calibration 2: 4%02,balance N2,lot#4517081,C of A on file <br /> Field Calibration 3:15%CH4,15%CO2,lot#304403559228-1,C of A on file. <br /> • Field Observations <br /> -A L <br /> example 100 0.5 0.14 GA-5000 0.0194 7.0 <br /> 120S 10 1 0.05 GA-5000 0.0194 2.8 11:01 AM 11:04 AM 68 0.0 0.0 19.6 0.6 79.9 N/A N/A <br /> 1201 48 1 0.26 GA-5000 0.0194 13.5 11:04 AM 11:18 AM 68 0.0 0.0 19.6 0.5 79.9 N/A N/A <br /> 120D 91 1 0.50 GA-5000 0.0194 25.6 11:18 AM 11:34 AM 68 0.0 0.0 20.2 0.3 79.4 N/A N/A <br /> 121 S 8 1 0.04 GA-5000 0.0194 2.2 11:43 AM 11:47 AM 68 0.0 0.0 21.0 0.1 79.0 N/A N/A <br /> 1211 52 1 0.28 GA-5000 0.0194 14.6 11:47 AM 12:03 AM 68 0.0 0.0 20.1 0.4 79.5 N/A N/A <br /> 121 D 85 1 0.46 GA-5000 0.0194 23.9 12:03 AM 12:26 AM 68 0.0 0.0 20.0 0.3 79.6 N/A N/A <br /> Notes: <br /> (1)Yellow highlighted columns are calculated from non-highlighted inputted data. <br /> (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. <br /> (3)Start Time:Record time when meter is turned on to purge. <br /> (4)End Time:Record time when final measurements are taken. <br /> (5)Initial CH4 is the highest reading exhibited anytime during the purge window. <br /> 5/6/2026 amc <br />