Water Quality Monitoring

Discharge limits are usually the tightest condition on a site's licence, and the one most likely to be tested on a wet day when nobody is watching the sampler.

What we cover:

• Surface water and groundwater monitoring against licence limits.
• Discharge monitoring at licensed points, including flow and volume.
• Water level and hydrological measurement.
• Turbidity and suspended solids around dredging, earthworks and marine works.

Continuous where it matters

A grab sample tells you what the water was like at the moment somebody drove out and filled a bottle. A continuous station tells you what it was like for the other 364 days. Discharge points that carry a real compliance risk are instrumented to run continuously, with telemetry and alarms.

The full hydrological picture

Discharge is only part of the story. We also monitor the water level and rainfall that determine how much of a load a receiving water actually received, so a result can be read against the conditions that produced it.

Sampling where instruments cannot go

For parameters that still need laboratory analysis, campaign sampling of surface water, groundwater, soil and sediment is run to the applicable standards, with chain-of-custody records that survive an audit.