An easy to use A to Z of some of the most commonly used terms used throughout the water industry.
third party deduction
Payment system through which bills are paid direct from government benefits rather than by the customer (e.g. Water Direct)
Trihalomethanes: by-products of chlorination.
total dissolved solids (TDS)
The concentration of dissolved solids in a wastewater or effluent, ie the residue after evaporation and drying, expressed in milligrams per litre of sample.
Wastewater produced by trade and industry; not domestic sewage.
System where drinking water or raw water is moved around a region.
A processing site used by a water company to take water from a river or underground source and make it safe to drink.
A sewer which receives many tributary branches or discharges from other large sewers and serves a large area.
Interference with the passage of light rays through a liquid, caused by the presence of suspended matter.