Groundwater Field Sampling and Analysis
•Water sampling follows a certified management system certified complying with the requirements of AS/NZS 5667.1:1998.
Sampling Equipment
•We offer water field analysis sampling equipment sourced from Enviroequip
•Planning for the water sampling is to utilize the Micropurge sample pump -76 metre head capacity (Bladder Pump), powered by an air compressor, Draw down meter/dipper, for water level stability measurements during sampling process and a flow cell to direct flow for analysis/sampling techniques.
•Additional sampling equipment is available, as follows, though the micropurge is highly efficient and provides reliability in sampling techniques.
•Bladder pumps – Passive Sampling Enviroequip
•Purging Air Bottom filling/discharging displacement pumps
•Submersible pump
•Bailers (or disposable bailers)
High-rate pumps (Fig. 2) reduce sampling precision due to high-flow effects on volatiles, turbidity, and mixing.
MicroPurge sampling methods (Fig. 3) deliver precise samples with minimal purging; natural aquifer flow brings representative water to the sampling zone with no mixing or excess turbidity.
Bailers & portable pumps (Fig. 1) mix stagnant water, air, and sediment into samples - even after purging 3 to 5 well volumes.
