COMPLIANCE INFO_Q3 2025 MONITORING REPORT 10-30-25

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SAMPLE LOCATION / MW -23R DATE:7/30/2025 PROJECT NAME: ANALYSIS PERFORMED:SEE CHAIN OF CUSTODY ADDRESS: SAMPLE TIME:11:11 CITY, STATE: SAMPLE CONTAINERS:SEE CHAIN OF CUSTODY SITE CONTACT: PRESERVATIVES:SEE CHAIN OF CUSTODY CONSULTANT: LAB. ANALYSIS BY:PACE ANALYTICAL PROJECT MANAGER: MONUMENT:POST SAMPLER: WELL CASING MATERIAL:PVC SIGNED: WELL CASING DIAMETER:4" / 0.6528 SAMPLE MEDIA: P.I.D. READING / ODOR:N/A NONE TOP OF CASING ELEVATION:MSL COLOR:CLEAR DEPTH TO WATER: (feet.100th's)64.70 FEET CALC. PURGE VOLUME:4.67 GALLONS DEPTH OF WELL: (feet.100th's)71.85 FEET TOTAL VOLUME PURGED:20.00 GALLONS STANDING WATER COLUMN:7.15 FEET DEPTH OF PUMP:71.00' FEET 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.) 10:50 4.67 0.0 64.70 10:55 ROUNDED UP 5.0 64.75 1.0 7.34 1073 18.6 25 11:00 5.0 64.75 " 7.43 1068 18.6 18 11:05 5.0 64.75 " 7.46 1060 18.8 33 11:10 5.0 64.75 " 7.46 1055 18.9 37 11:11 SAMPLED PURGE METHOD:WATERRA INERTIAL PUMP & DEDICATED TUBING. SAMPLE METHOD:WATERRA INERTIAL PUMP & DEDICATED TUBING. D. T. W. AFTER PURGE: D. T. W. AT SAMPLE TIME:64.75' WELL INTEGRITY:CAP & SEAL ARE SECURE. WELL LOCATION:SEE SITE MAP. REMARKS: WEATHER:CLEAR / HOT WIND: QUALITY CONTROL:WATER DEPTH METER & MONITORING PROBE CLEANED WITH ALCONOX SOAP AND WATER. NEW NITRILE GLOVES. CONTAINMENT:NONE / TO THE GROUND SURFACE. INSTRUMENTATION:MYRON 6P MULTI METER HANNA TURBIDITY METER HERON D.T.W. METER GROUNDWATER MANTECA, CA. OSVALDO CORDERO ARCADIS ARCADIS DEL-TECH / ANTONIO MORALES FIELD PARAMETERS DEL-TECH GEOTECHNICAL SUPPORT SERVICES, INC. MONITORING WELL FIELD LOG 2025 HAZARDOUS FORWARD LANDFILL 9999 S AUSTIN ROAD