NEW JERSEY DEPARTMENTAL OF ENVIRONMENTAL PROTECTION Low Flow Purging and Sampling Guidance Page 1 of 18
LOW FLOW SAMPLING DATA SHEET
SHEET _____ OF _____ SITE: DATE: WEATHER: MONITOR WELL #: WELL PERMIT #: PID/FID READINGS (ppm): WELL DEPTH: WELL DIAMETER: BACKGROUND: BENEATH OUTER CAP: BENEATH INNER CAP: SAMPLING PURGING pH (pH units)
READING CHANGE*
CONSULTING FIRM: FIELD PERSONNEL:
SCREENED/OPEN INTERVAL: Inches PUMP INTAKE DEPTH: ________ ft below TOC DEPTH TO WATER BEFORE PUMP INSTALLATION : ________ ft below TOC REDOX POTENTIAL (mv)
READING CHANGE*
SPECIFIC CONDUCTIVITY (mS/cm)
READING CHANGE*
DISSOLVED OXYGEN (mg/l)
READING CHANGE*
TURBIDITY (NTU)
READING CHANGE*
TEMPERATURE (degrees C)
READING CHANGE*
TIME
PUMPING RATE (ml/min)
DEPTH TO WATER (ft below TOC)
NA
NA
NA
NA
NA
NA
COMMENTS:
*INDICATOR PARAMETERS HAVE STABLIZED WHEN 3 CONSECUTIVE READINGS ARE WITHIN: ± 0.1 for pH; ± 3% for Specific Conductivity and Temperature; ± 10 mv for Redox Potential; and ± 10% for Dissolved Oxygen and Turbidity