Glossary

DP

Deposited plan
The deposited plan (e.g. DP 3456) records land transfer subdivisions, and may show the property's boundaries and area. It is part of the legal description of a property.

Drinking water

Drinking water
The water that we supply through your taps. It is used for drinking and also for cooking, washing, showering, flushing the toilet, watering the garden etc. Businesses use it for activities such as making products or cleaning.

Engineering approval

Engineering approval
Works on public water or wastewater pipes require engineering approval from Auckland Council. This includes submitting compliance statements (CS1, and CS2 if required).

Estimated reading

Estimated reading
Every two months, your bill is based on an estimate (an approximate calculation) of your water use, rather than an actual reading of your meter. The estimate is based on your past two actual readings. If the estimate differs from your actual water use, your next bill will be adjusted automatically.

Fire hydrant

Fire hydrant
A fitting in the street or other public place for drawing water directly from a watermain. It has a nozzle for attaching a standpipe or fire hose.

Fixed charge

Fixed charge
All households with a water meter pay a fixed wastewater charge as well as the volumetric charge. The fixed charge pays for maintaining the public wastewater network. There is also a fixed charge for wastewater-only customers who do not have a water supply.

Gate valve

Gate valve
A tap close to a water meter that lets water flow through the meter. It is upstream of the meter, which allows the meter to be isolated when the tap is repaired or replaced.

Grey water

Grey water
The wastewater from the bath, shower, bathroom sink and washing machine.

Groundwater

Groundwater
The point where you find water when you dig a hole in the ground. Also referred to as the water table.

Gully trap

Gully trap
An access point to a private drain (wastewater) for repairs or cleaning. It is usually at the side of a building and often has a plastic or metal grille to prevent debris entering the private pipe. Also called an ‘overflow relief point’.