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13E1--TEC Pi DEL-TECH GEOTECHNICAL SUPPORT SERVICES, INC. MONITORING WELL FIELD LOG 2026 SAMPLE LOCATION/AMW 34 DATE: 2/4/2026 PROJECT NAME: FORWARD LANDFILL ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY ADDRESS: 9999 S AUSTIN ROAD SAMPLE TIME: 13:14 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: FLUSH SAMPLER: DEL-TECH/ANTONIO MORALES WELL CASING MATERIAL: PVC SIGNED: Aa• It-, WELL CASING DIAMETER: 4" / 0.6528 SAMPLE MEDIA: GROUNDWATER P.I.D.READING/ODOR: N/A NONE TOP OF CASING ELEVATION: MSL COLOR: CLEAR DEPTH TO WATER: (feet.100th's) 71.76 FEET CALC.MICRO PURGE TUBE VOLUME: 1.03 GALLONS DEPTH OF WELL: (feet.100th's) 410.00 FEET TOTAL VOLUME PURGED: 3.00 GALLONS STANDING WATER COLUMN: 338.24 FEET JLPEPTH OF PUMP: — 401 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.) 12:43 1.03 0.0 12:53 1.0 71.80 0.10 8.02 190 18.3 1 12:58 0.50 71.80 7.94 189 18.4 1 13:03 0.50 71.80 7.92 190 18.5 ir 1 tSAMPLED 0.50 71.80 7.92 190 18.4 1 0.50 71.80 7.94 189 183 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: 71.80' 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. 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