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Cal Recycle California Department of Resources Recycling and Recovery Log-sheet <br /> 1001 Street-Sacramento,CA 95814 <br /> Waste Permitting Compliance&Mitigation Division <br /> (Engineering support Branch) <br /> Project: Forward Landfill Instrument: QED GA 5000,flow specification=550 cc/min=0.194 cu ft/min <br /> Location: 9999 S Austin Rd,Manteca CA 95336 Serial#: G509028 Calibration Date: 4/28/2026 <br /> Date: 28-Apr-26 Field Staff: Sandip Singh <br /> Weather Conditions: 66 F with 4 mph SE wind Comments. Field Calibration 1:Fresh Air <br /> Bar.Pressure: 30.04 in Field Calibration 2:15%CH4,15%CO2,part#X03NI70CP340000,lot#304-403559228-1 <br /> Field Calibration 3:4%02,balance N2,part#QED CG-00-00,lot#4517081 <br /> . . Field Observations <br /> see calcs below <br /> EXAMPLE 100 0.5 0.14 GEM-5000 .0194 7.0 <br /> GP-1 SHALLOW 10 0.5 0.01 GEM-5000 .0194 0.7 11:59AM 12:01 PM 66 0 0 16.7 4.3 79 <br /> INTERMEDIATE 25 0.5 0.03 GEM-5000 .0194 1.8 12:02 PM 12:05 PM 66 0 0 15.1 6.7 78.2 <br /> GP-2 SHALLOW 10 0.5 0.01 GEM-5000 .0194 0.7 11:51 AM 11:53 AM 66 0 0 10.6 9.5 79.9 <br /> INTERMEDIATE 25 0.5 0.03 GEM-5000 .0194 1.8 11:54AM 11:57 AM 66 0 0 8.3 9.7 82 <br /> GP-3 SHALLOW 10 0.5 0.01 GEM-5000 .0194 0.7 11:42 AM 11:44 AM 66 0 0 11.7 5.7 82.6 <br /> INTERMEDIATE 25 0.5 0.03 GEM-5000 .0194 1.8 11:46 AM 11:49AM 66 0 0 11.4 6.1 82.5 <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 /> 5/20/2026 amc <br />