Hastings

Hastings District Council (HDC) was directed to fluoridate the Hastings Urban Water Supply (Hastings, Havelock North, Flaxmere, Bridge Pa and Pakipaki).

Hydrofluorosilicic Acid (HFA). 

Fluoride is added at approximately 0.70 parts per million, with the direction from the Ministry of Health setting a target concentration of fluoride in treated water to be in the range 0.7 – 1.0 parts per million of drinking water.

Water is tested on an ongoing basis using both online monitoring as well as manual sampling on a weekly basis.

Manual sampling is undertaken by HDC’s contracted laboratory. Operational monitoring is undertaken by HDC Water operations staff.

Treated effluent from the East Clive WWTP (Te Whare o Whiro) is discharged 2.75km out to sea.

HDC does not discharge concentrated fluoridation chemicals nor is wastewater created in the drinking water fluoridation process so a consent is not held for that activity. Wastewater created by customers connected to this water supply is discharged at East Clive WWTP for which HDC holds a discharge consent, or via private on-site septic tanks/ wastewater treatment systems.

The East Clive WWTP receives water from domestic and industrial customers with the HBRC specifying the consent conditions and testing requirements for the discharges from WWTP to the environment.

A resource consent is not required for drinking water fluoridation.

It is estimated that operational and maintenance costs related to fluoridation including the supply of HFA, once all sites are fully commissioned will be in the order of $100,000
per annum.

See above.

See above.

$570.00 ex GST

It is estimated that 55 tonnes of HFA will be added to the water supply per annum to provide community drinking water fluoridation.