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DEL-TECH DEL-TECH GEOTECHNICAL SUPPORT SERVICES, INC. MONITORING WELL FIELD LOG 2026 SAMPLE LOCATION - CDCR-EW-2 DATE: 2/5/2026 PROJECT NAME: FORWARD LANDFILL ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY ADDRESS: 9999 S AUSTIN ROAD SAMPLE TIME: 15:14 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: POST SAMPLER: DEL-TECH/ANTONIO MORALES WELL CASING MATERIAL: PVC SIGNED: A p m_-- WELL CASING DIAMETER: 6" / 1.4687 SAMPLE MEDIA: GROUNDWATER P.I.D.READING/ODOR: N/A NONE TOP OF CASING ELEVATION: MSL COLOR: CLEAR DEPTH TO WATER: (feet.100th's) 57.60 FEET CALC.MICRO PURGE TUBE VOLUM 0.71 GALLONS DEPTH OF WELL: (feet.100th's) 130.20 FEET TOTAL VOLUME PURGED: 5.00 GALLONS STANDING WATER COLUMN: 72.60 FEET DEPTH OF PUMP: 70 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.) 14:48 0.71 0.0 14:53 1.0 57.63 0.20 9.90 789 19.3 10 15:58 1.0 57.63 9.90 799 19.6 0 15:03 1.0 57.63 8.41 750 19.1 1 15:08 1.0 57.63 8.42 764 19.5 1 15:13 1.0 57.63 8.14 770 19.2 1 15:14 SAMPLED PURGE METHOD: MICRO-PURGE PORTABLE 2"GRUNDFOS SUBMERSIBLE PUMP. SAMPLE METHOD: PORTABLE 2"GRUNDFOS SUBMERSIBLE PUMP. D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 57.63' 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: PUMP, WATER DEPTH METER,&MONITORING PROBE CLEANED WITHALCONOX SOAPAND WATER. NEWNITRILE GLOVES. CONTAINMENT: NONE/TO THE GROUND SURFACE. INSTRUMENTATION: MYRON 6P MULTI METER HANNA TURBIDITY METER HERON D.T.W.METER