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dEL-TEC H DEL-TECH GEOTECHNICAL SUPPORT SERVICES,INC. MONITORING WELL FIELD LOG 2026 SAMPLE LOCATION/AMW- 40M DATE: 1/28/2026 PROJECT NAME: FORWARD LANDFILL ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY ADDRESS: 9999 S AUSTIN ROAD SAMPLE TIME: 15:37 CITY,STATE: MANTECA,CA. SAMPLE CONTAINERS: SEE CHAIN OF CUSTODY SITE CONTACT: OSVALDO CORDERO PRESERVATIVES: SEE CHAIN OF CUSTODY CONSULTANT: ARCADIS LAB.ANALYSIS BY: PACE ANALYTICAL PROJECT MANAGER: ARCADIS MONUMENT: POST SAMPLER: DEL-TECH/MANUEL MORENO WELL CASING MATERIAL: PVC SIGNED: — WELL CASING DIAMETER: 2" / 0.1632 SAMPLE MEDIA: GROUNDWATER P.I.D.READING/ODOR: N/A NONE TOP OF CASING ELEVATION: MSL COLOR: CLEAR DEPTH TO WATER: feet.100th's 54.30 FEET CALC.PURGE VOLUME: 11.26 GALLONS DEPTH OF WELL: feet.100th's 123.28 FEET TOTAL VOLUME PURGED: 36.00 GALLONS STANDING WATER COLUMN: 68.98 FEET DEPTH OF PUMP: — 121 FEET FIELD PARAMETERS TIME FULL WET ACTUAL DEPTH PUMPING pH E.C. TEMP. O.R.P. DISSOLVED TURBIDITY WELL CASING GALLONS TO RATE OXYGEN VOLUME (GAL.) PURGED WATER (GPM) (units) (us/cm) (Celsius) (Mvults) (PPM) (N.T.U.) 15:00 11.26 0.0 15:12 12.0 54.35 1.0 7.85 1103 16. 88 15:18 6.0 54.35 7.82 1096 16.7 6 15:24 6.0 54.35 7.74 1097 16.7 3 15:30 6.0 54.35 7.72 1091 16.6 3 15:36 i 54.35 7.68 1088 16.7 3 15:37 SAMPLED mmL I PURGE METHOD: STANDARD WATERRA INERTIAL PUMP. SAMPLE METHOD: DEDICATED WATERRA TUBING. D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 54.35' WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCATION: SEE SITE MAP. REMARKS: WEATHER: CLEAR/WINDY WIND: NONE QUALITY CONTROL: WATER DEPTH METER&MONITORING PROBE CLEANED WITH ALCONOX SOAP AND WATER. NEW NITRILE GLOVES. CONTAINMENT: NONE/TO THE GROUND SURFACE. INSTRUMENTATION: MYRON 6P MULTI METER HANNA TURBIDITY METER HERON D.T.W.METER