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OEL—TECH <br /> DEL-TECH GEOTECHNICAL SUPPORT SERVICES, INC. <br /> MONITORING WELL FIELD LOG 2026 <br /> SAMPLE LOCATION/ 7833 - MW-04 DATE: 2/5/2026 <br /> PROJECT NAME: FORWARD LANDFILL ANALYSIS PERFORMED: SEE CHAIN OF CUSTODY <br /> ADDRESS: 9999 S AUSTIN ROAD SAMPLE TIME: 10:04 <br /> CITY,STATE: MANTECA,CA. SAMPLE CONTAINERS: SEE CHAIN OF CUSTODY <br /> SITE CONTACT: OSVALDO CORDERO PRESERVATIVES: SEE CHAIN OF CUSTODY <br /> CONSULTANT: ARCADIS LAB.ANALYSIS BY: PACE ANALYTICAL <br /> PROJECT MANAGER: ARCADIS MONUMENT: FLUSH <br /> SAMPLER: DEL-TECH/MANUEL MORENO WELL CASING MATERIAL: PVC <br /> SIGNED: WELL CASING DIAMETER: 2" / 0.1632 <br /> SAMPLE MEDIA: GROUNDWATER P.I.D.READING/ODOR: N/A NONE <br /> TOP OF CASING ELEVATION: MSL COLOR: BROWN <br /> DEPTH TO WATER: (feet.100th's) 51.60 FEET CALC.PURGE VOLUME: 4.62 GALLONS <br /> DEPTH OF WELL: (feet.100th's) 79.93 FEET TOTAL VOLUME PURGED: 15.00 GALLONS <br /> STANDING WATER COLUMN: 28.33 FEET DEPTH OF PUMP: — 78 FEET <br /> FIELD PARAMETERS <br /> TIME FULL WET ACTUAL DEPTH PUMPING pH E.C. TEMP. O.R.P. DISSOLVED TURBIDITY <br /> WELL CASING GALLONS TO RATE OXYGEN <br /> VOLUME (GAL.) PURGED WATER (GPM) (units) (us/cm) (Celsius) (Mvolts) (PPM) (N.T.U.) <br /> 9:43 4.62 0.0 <br /> 9:48 1w 5.0 52.50 1.0 7.90 962 17.9 1000+ <br /> 9:53 5.0 52.50 7.84 896 17.7 1000+ <br /> 9:58 5.0 1 52.50 7.83 835 17.8 1000+ <br /> 10:03 5.0 52.50 7.85 809 17.9 1000+ <br /> 10:04 SAMPLED <br /> PURGE METHOD: STANDARD WATERRA INERTIAL PUMP. <br /> SAMPLE METHOD: DEDICATED WATERRA TUBING. <br /> D.T.W.AFTER PURGE: D.T.W.AT SAMPLE TIME: 52.50' <br /> WELL INTEGRITY: CAP&SEAL ARE SECURE. <br /> WELL LOCATION: SEE SITE MAP. <br /> REMARKS: <br /> WEATHER: CLEAR/COOL WIND: NONE <br /> QUALITY CONTROL: WATER DEPTH METER&MONITORING PROBE CLEANED WITHALCONOX SOAP AND <br /> WATER. NEWNITRILE GLOVES. <br /> CONTAINMENT: NONE/TO THE GROUND SURFACE. <br /> INSTRUMENTATION: MYRON 6P MULTI METER HANNA TURBIDITY METER <br /> HERON D.T.W.METER <br />