A basic measurement in groundwater studies is that of water levels in wells. The measurement of the groundwater level in a well is frequently conducted in conjunction with groundwater sampling to determine the "free" water surface. Surface measurements can be used to establish groundwater direction and gradients. Groundwater level and well depth measurements are needed to determine the volume of water or drawdown in the well casing for proper purging.

Interface meters and probes can be used in numerous applications including measuring oil and water levels in monitoring wells, detecting tank leakage and obtaining accurate measurements of water levels. When a interface meter is lowered down a well and contacts a product layer, a signal is activated on the reel.

Geotech offers a variety of designs so that you can choose the perfect interface probe or meter for your site requirements.

The geosquirt Purge Pump is designed for purging shallow wells up to a maximum depth of 90 feet (27 m).
The pump is completely sealed and designed to be operated while completely submerged in water.

A bailer is a portable grab sampler typically used for retrieving groundwater samples from monitoring wells. Bailers are sometimes used to purge groundwater wells prior to sampling, collecting profile samples of free product (hydrocarbons), well development, and bail-down tests to measure recharge rates.

Electrical submersible pumps are the logical choice for monitoring wells when high flow rate purging and low flow sampling is required. They are very reliable and provide continuous sampling rates over extended periods of time, desirable qualities for dedicated monitoring wells.