Georeflex Srl performs direct measurements and sampling for chemical analysis on water inside piezometers. Procedures are in compliance with regional environmental monitoring plans (PMA).

The main activities carried out for environmental monitoring are:

• census of water points and sources

• measurement of phreatic zone level

• direct measurements on phreatic zone water (temperature, pH, conductibility, turbidity)

• water sampling for laboratory analysis

The measurement of the phreatic zone level is accomplished by a phreatimeter, which detects the water table depth.
The instrument is simple, light, easy to use and do not condition water properties.

At measure points, a probe (1 cm diameter) is lowered through a roll-up cable. As the probe reaches the groundwater an acoustic signal is emitted.

Water sampling is executed by a 12V centrifugal pump. This pump, whose diameter is 42 mm, is lowered in the piezometer and activated by a remote control.

The water collected within the piezometer is then driven into a container (10 liters) predisposed to avoid any contact with the air.

Once the container is full, a multi-parametric probe is used to measure parameters such as temperature, pH and electrical conductibility at 20°C.

When parameter stabilization is reached, also turbidity is measured using a camp probe.

Collected samples are preserved into a fridge.