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flEL-TECH i.or DEL-TECH GEOTECHNICAL SUPPORT SERVICES,INC. MONITORING WELL FIELD LOG 2026 SAMPLE LOCATION/MW- 23R HAZARDOUS DATE: 2/2/2026 PROJECT NAME: FORWARD LANDFILL ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY ADDRESS: 9999 S AUSTIN ROAD SAMPLE TIME: SEE BELOW 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: ft..2v..w 4, M.�_---- 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) 59.15 FEET CALC.PURGE VOLUME: 8.29 GALLONS DEPTH OF WELL: (feet.100th's) 71.85 FEET TOTAL VOLUME PURGED: 20.00 GALLONS STANDING WATER COLUMN: 12.70 FEET DEPTH OF PUMP: 71.00' FEET FIELD PARAMETERS TIME CALCULATED ACTUAL DRAW PUMPING pH E.C. TEMP. DISSOLVED TURBIDITY PURGE GALLONS DOWN RATE OXYGEN VOLUME PURGED (D.T.W.) (GPM) (units) (us/cm) (Celsius) (PPM) (N.T.U.) 10:20 8.29 0.0 59.15 10:30 ROUNDED UP 10.0 59.30 1.0 7.48 959 17.9 74 10:35 5.0 59.30 7.39 954 18.0 64 10:40 5.0 59.30 7.39 951 18.0 75 10:45 5.0 1 59.30 7.40 1 955 1 18.1 68 10:50 5.0 59.30 7.39 951 18.1 59 10:53 SAMPLED PURGE METHOD: STANDARD WATERRA INERTIAL PUMP&DEDICATED TUBING. SAMPLE METHOD: WATERRA INERTIAL PUMP&DEDICATED TUBING. D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 59.30' WELL INTEGRITY: CAP&SEAL ARE SECURE. WELL LOCATION: SEE SITE MAP. REMARKS: 123 TCP COLLECTED AT 10:51. VOC ANALYSIS COLLECTED AT 10:52. REMAINING SAMPLES COLLECTED AT 10:53. WEATHER: PARTLY CLOUDY/COOL WIND: NONE QUALITY CONTROL: WATER DEPTH METER&MONITORING PROBE CLEANED WITH ALCONOX SOAP AND WATER. NEWNITRILEGLOVES. CONTAINMENT: NONE/TO THE GROUND SURFACE. INSTRUMENTATION: MYRON 6P MULTI METER HANNA TURBIDITY METER HERON D.T.W.METER