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DEL-TECH DEL-TECH GEOTECHNICAL SUPPORT SERVICES, INC. MONITORING WELL FIELD LOG 2026 SAMPLE LOCATION/AMW- 55 DATE: 1/29/2026 PROJECT NAME: FORWARD LANDFILL ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY ADDRESS: 9999 S AUSTIN ROAD SAMPLE TIME: 15:21 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/ANTONIO MORALES WELL CASING MATERIAL: PVC SIGNED: 4'• fl-, 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) 43.18 FEET CALC.MICRO PURGE TUBE VOLUM 0.16 GALLONS DEPTH OF WELL: (feet.100th's) 64.27 FEET TOTAL VOLUME PURGED: 2.50 GALLONS STANDING WATER COLUMN: 21.09 FEET DEPTH OF PUMP: 63.3 FEET FIELD PARAMETERS TIME CALCULATED ACTUAL DRAW PUMPING pH E.C. TEMP. O.R.P. DISSOLVED TURBIDITY SYSTEM GALLONS DOWN RATE OXYGEN VOLUME (GAL.) PURGED (D.T.W.) (GPM) (units) (us/cm) (Celsius) (Mvolts) (PPM) (N.T.U.) 14:55 0.16 0.0 15:00 0.50 43.35 0.10 7.81 1099 18.5 3 15:05 0.50 43.35 7.60 1058 18.3 1 15:10 0.50 43.35 7.52 1021 18.4 2 15:15 0.50 43.35 7.55 1009 18.5 1 15:20 0.50 43.35 7.55 1006 18.5 1 15:21 SAMPLED PURGE METHOD: MICRO-PURGE QED BLADDER PUMP/MICRO PURGE/1/4" DISCHARGE TUBING SAMPLE METHOD: QED BLADDER PUMP/MICRO PURGE/1/4" DISCHARGE TUBING D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 43.35' WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCATION: SEE SITE MAP. REMARKS: READINGS EVERY 5 MINUTES-AFTER TUBING PURGE-NOT TO EXCEED 1 LITER PER MINUTE. QCEB COLLECTED AT 16:00. WEATHER: PARTLY CLOUDY/COOL WIND: NONE QUALITY CONTROL: WATER DEPTH METER&MONITORING PROBE CLEANED WITH ALCONOX SOAP AND WATER. NEWNITRILE GLOVES. CONTAINMENT: NONE/TO THE GROUND SURFACE. INSTRUMENTATION: MYRON 6P MULTI METER HANNA TURBIDITY METER HERON D.T.W.METER