What are they fluoridating with?
Help us complete this list by contacting your local council or water treatment facility and finding out: 1. which compound is used to fluoridate your water; 2. the target dose of fluoride; 3. the annual cost of operation (materials, training, equipment maintenance, etc.); 4. the supplier (company and country); 5. chemical composition, including levels of known contaminants.
Materials Safety data:
Hydrofluorosilicic acid (H2SiF6)
Sodium fluorosilicate (Na2SiF6)
Sodium fluoride (NaF)
Click on location hyperlinks (where available) for more details.
| Location | Sodium fluorosilicate (Na2SiF6) |
Sodium fluoride (NaF) |
Hydrofluorosilicic acid (H2SiF6) |
Target F dose (mg/L) |
Annual cost |
Supplier |
| Auckland | x |
Orica | ||||
| Balclutha |
x |
0.85 | $15,000 |
Kauri NZ | ||
| Dunedin |
x |
0.85 | $38,154 | DC Rosser Ltd, importing Na2SiF6 from Prayon (Belgium) | ||
| Gisborne |
x |
0.80 | $14,000 |
Orica | ||
| Greater Wellington | x |
x | 0.85 (varies between 0.7 - 1.0) |
$182,000 + $80,000 training costs |
Na2SiF6 from Prayon Rupel SA (Belgium), H2SiF6 from Orica (NZ) | |
| Kapiti |
x |
0.7 - 1.0 | $13,213 |
Orica (importing Na2SiF6 from India) | ||
| Hamilton | x |
|
$40,000
|
Orica | ||
| Hastings |
x | 0.9 | 50c per person |
Orica | ||
| Hawera, Normanby, Okaiawa, Ohawe | x |
$2,000 | Orica | |||
| Masterton | x |
0.8 |
Orica | |||
| New Plymouth |
x | 0.7 | $35,000 |
Orica | ||
|
Pukekohe |
|
|
x |
0.8 - 1.0 |
$5,000-$6,000 |
Orica |
| Taumarunui | x |
$6,500 | Orica | |||
| Taupo |
x |
x |
0.6 - 0.8 |
DC Rosser Ltd supplies Na2SiF6, Orica supplies H2SiF6 (from 2012-2013, will be Orica H2SiF6 exclusively) | ||
| Thames |
x |
0.8 | $2,500 | Orica | ||
| Tokorua | x (18% in undiluted form) | $5,000 |
Orica | |||
| Waipukurau |
x |
x (soon to replace NaF) |
$3,000 (estimate for HFA) |
Orica | ||
| Whakatane, Ohope |
x |
0.7 - 1.0 |
$10,300 |
Orica |
