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California Department of Resources Recycling and Recovery Log-sheet <br /> CalRecycleo1Pe I Street-Sacramento, ig 95814 <br /> Waste Permitting Compliance&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 <br /> Location: 6484 N Waverly Road, Linden, CA 95236 Serial #: G509028 Calibration Date: 9/26/2025 <br /> Date: 27-Aug-26 Field Staff: Garrett Backus <br /> Weather Conditions: 85 degrees F, clear Comments: Field Calibration 1: Fresh Air <br /> Bar. Pressure: 29.63 inches Hg Field Calibration 2: 4% 02, balance N2, lot#4517081, C of A on file <br /> Field Calibration 3: 15% CH4, 15% CO2, lot# 304-403559228-1, C of A on file. <br /> • • - Field Observations <br /> example 100 0.50 0.13628 GA-5000 0.0194 7.025 <br /> 119S 12 0.75 0.04 GA-5000 0.0194 1.9 10:14 AM 10:17 AM 85 0.0 0.0 21.0 0.1 78.9 N/A N/A Purged and measured with the QED QA 5000. <br /> 1191 36 0.75 0.11 GA-5000 0.1000 1.1 10:17 AM 10:20 AM 85 0.0 0.0 21.0 0.1 78.9 N/A N/A Purged one well volume with GilAir 5 pump and then measured <br /> with QED QA 5000. Start and end times are with the QED. <br /> 119D 66 0.75 0.20 GA-5000 0.1000 2.0 10:20 AM 10:21 AM 85 0.0 0.0 21.0 0.1 78.9 N/A N/A Purged one well volume with GilAir 5 pump and then measured <br /> with QED QA 5000. Start and end times are with the QED. <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 /> 8/31/2026 amc <br />