The Ponds Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.1
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
44.1 mg/L
Est. Daily Cost
A$0.09
energy & soap waste
Source: BOM National Performance Report & ADWG · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In The Ponds, your appliances are currently losing 4% efficiency due to mineral buildup.
| Appliance | In The Ponds | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.7 yrs | 8.5 yrs | — |
| Washing Machine | 12.6 yrs | 12 yrs | — |
| Water Heater | 14.5 yrs | 15 yrs | -3% |
Regional Water Comparison
How The Ponds compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ The Ponds, New South Wales | 27 mg/L | 🟢 Soft | reservoir |
| Kellyville Ridge, New South Wales | 57 mg/L | 🟢 Soft | reservoir |
| Glenwood, New South Wales | 124 mg/L | 🟠 Hard | reservoir |
| Kellyville, New South Wales | 96 mg/L | 🟡 Moderately Hard | reservoir |
| Quakers Hill, New South Wales | 88 mg/L | 🟡 Moderately Hard | reservoir |
National Benchmark
How The Ponds compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ The Ponds | 27 mg/L | 🟢 None |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes The Ponds's Water Unique?
Local geology and source profile
The Ponds' drinking water is supplied by Sydney Water, treated at the Prospect Water Filtration Plant drawing predominantly from Warragamba Dam (Nepean River system) for the Blacktown City LGA outer north-western Sydney distribution in New South Wales. Water hardness at The Ponds is measured at 27 mg/L — classified as very soft — far below the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. The Ponds — a master-planned residential community established in the 2000s in the outer north-western Sydney Blacktown City LGA near Stanhope Gardens, known for the Ponds High School, the Ponds Community Hub and town centre on Riverbank Drive, the Rouse Hill Regional Park green space precinct, and the contemporary family-oriented community character of this outer north-western Sydney growth corridor — receives very soft supply characteristic of the predominantly Warragamba-dominant outer north-western Sydney Blacktown distribution.
The Ponds' very soft supply reflects a predominantly Warragamba Dam contribution with minimal Hawkesbury-Nepean blending at the outer north-western Blacktown Prospect distribution sub-zone. Warragamba Dam collects rainfall from the Blue Mountains sandstone plateau and Kanangra–Boyd granite uplands — chemically resistant terrain contributing negligible dissolved minerals — producing very soft supply at 27 mg/L and TDS 44.1 mg/L. The Ponds outer north-western Blacktown distribution is consistent with the very soft Toongabbie West sub-zone (27.5 mg/L) in the same Blacktown LGA, confirming the consistently very soft character of the outer north-western Blacktown Prospect distribution corridor.
Residents of The Ponds enjoy very low limescale accumulation on taps and in kettles — descaling every three to four months is typically adequate. Hot water systems accumulate minimal scale. The very low lead reading (0.001 mg/L) is excellent. Sydney Water provides water quality information at sydneywater.com.au, with all ADWG health standards consistently met. The Ponds' outer north-western Sydney master-planned community and the Rouse Hill Regional Park precinct benefit from this very soft, clean supply.
Geology & Source: Supplied by Sydney Water via the Prospect Water Filtration Plant drawing predominantly from Warragamba Dam — the Ponds Blacktown outer north-western Sydney supply carries very soft water at 27 mg/L with near-zero TDS of 44.1 mg/L, reflecting the predominantly Warragamba-dominant supply of the outer north-western Blacktown LGA distribution, consistent with the very soft Toongabbie West sub-zone (27.5 mg/L) in the same Blacktown LGA.