Lara Water Hardness & Quality Report (2026)
Water Hardness
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
143.8 mg/L
Est. Daily Cost
A$0.22
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 Lara, your appliances are currently losing 9% efficiency due to mineral buildup.
| Appliance | In Lara | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.3 yrs | 8.5 yrs | -14% |
| Washing Machine | 11 yrs | 12 yrs | -8% |
| Water Heater | 12.8 yrs | 15 yrs | -15% |
Regional Water Comparison
How Lara compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Lara, Victoria | 70 mg/L | 🟡 Moderately Hard | reservoir |
| Corio, Victoria | 44.5 mg/L | 🟢 Soft | reservoir |
| Geelong, Victoria | 25 mg/L | 🟢 Soft | reservoir |
| Belmont, Victoria | 80 mg/L | 🟡 Moderately Hard | reservoir |
| Highton, Victoria | 102 mg/L | 🟡 Moderately Hard | reservoir |
National Benchmark
How Lara compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Lara | 70 mg/L | 🟡 Low |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Lara's Water Unique?
Local geology and source profile
Lara's drinking water is supplied by Barwon Water, drawing from the Barwon River system and potentially incorporating supply from the Moorabool River and Lal Lal Reservoir catchment network for the City of Greater Geelong LGA northern coastal distribution in Victoria. Water hardness in Lara is measured at 70 mg/L — classified as slightly hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Lara — a large and rapidly growing outer northern Geelong residential suburb on the Corio Bay coastal plain at the You Yangs foothills, known for the Lara Lake recreation reserve and the gateway position on the Geelong Ring Road — receives supply softer than the Highton sub-zone (102 mg/L) in the same Greater Geelong LGA, reflecting sub-zone variation in Barwon Water's northern Geelong Corio coastal distribution network.
Lara's softer supply compared to central Geelong reflects a distribution sub-zone potentially incorporating a higher proportion of the Moorabool River supply component. The Moorabool River system, sourced from the Lal Lal Reservoir area, drains across the Devonian granite and lower You Yangs granodiorite terrain west of Melbourne — contributing softer, lower-mineral water compared to the Barwon River's basalt plains-dominant supply. The Lara northern Geelong Corio corridor at 70 mg/L and TDS 143.8 mg/L receives a more balanced Barwon/Moorabool blend, producing supply softer than the basalt plains-dominant Highton zone.
Lara residents can expect occasional moderate limescale on taps and in kettles — descaling every two to three months is typically adequate. Hot water systems benefit from periodic inspection. The elevated lead reading (0.003 mg/L) warrants briefly running the cold tap before use in older Lara properties. Barwon Water provides water quality information at barwonwater.com.au, with all ADWG health standards consistently met. The slightly hard supply is well within comfortable household use ranges for Lara's growing outer northern Geelong Corio residential community.
Geology & Source: Supplied by Barwon Water from the Barwon River system with potential contribution from the Moorabool River/Lal Lal Reservoir supply — the Lara Greater Geelong northern coastal supply carries slightly hard water at 70 mg/L, reflecting a more balanced supply blend at the northern Geelong Corio Bay corridor, softer than the Barwon River dominant Highton sub-zone (102 mg/L) in the same Greater Geelong LGA.