Redland Bay Water Hardness & Quality Report (2026)
Water Hardness
~60–119 mg/L
Moderately Hardestimated · not lab-verified
Source
mixed
pH Level
7.3
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
213.3 mg/L
Est. Daily Cost
A$0.28
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 Redland Bay, your appliances are currently losing 12% efficiency due to mineral buildup.
| Appliance | In Redland Bay | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.5 yrs | 8.5 yrs | -12% |
| Washing Machine | 10.6 yrs | 12 yrs | -12% |
| Water Heater | 13.2 yrs | 15 yrs | -12% |
Regional Water Comparison
How Redland Bay compares to its nearest neighbours
| City | Hardness | Risk | Source |
|---|---|---|---|
| ▶ Redland Bay, Queensland | ≈ 60–119 mg/L | 🟡 Moderately Hard | mixed |
| Victoria Point, Queensland | ≈ 60–120 mg/L | 🟡 Moderately Hard | mixed |
| Thornlands, Queensland | ≈ 60–120 mg/L | 🟡 Moderately Hard | mixed |
| Cleveland, Queensland | ≈ 60–120 mg/L | 🟡 Moderately Hard | mixed |
| Alexandra Hills, Queensland | ≈ 60–120 mg/L | 🟡 Moderately Hard | mixed |
National Benchmark
How Redland Bay compares to the Australia average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Redland Bay | ≈ 60–119 mg/L | 🟡 Low |
| Australia National Avg | 125 mg/L | 🟠 Moderate |
| Boronia Top Rated | 5 mg/L | 🟢 None |
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What Makes Redland Bay's Water Unique?
Local geology and source profile
Redland Bay's water supply is a complex mix, primarily drawing from Seqwater's bulk provisions originating in Lake Wivenhoe and Lake Somerset. However, a significant portion of the water reaching the southern coastal distribution zone in Redland City is supplemented by Lockyer Valley groundwater. This groundwater component is the main reason for the very hard water experienced in this area, contributing a substantial amount of dissolved solids to the overall supply delivered by Redland City Council Water.
The geology influencing Redland Bay's water is characterized by the Lockyer Valley region's groundwater, which is known for its high mineral content. This groundwater travels through rock formations that contribute to its hardness, resulting in very hard water being delivered to consumers. The specific geological strata and rock types within the Lockyer Valley are responsible for imparting these dissolved minerals, such as calcium and magnesium, making the water notably hard.
Residents in Redland Bay may notice the effects of this very hard water on their appliances and plumbing systems, potentially leading to increased scale buildup. Dishes washed in dishwashers might appear spotty, and soap and detergent may not lather as effectively. Homeowners often find installing a water softener beneficial to mitigate these issues, protect water heaters, and improve the overall efficiency of cleaning. It's always wise to check Seqwater's official water quality reports for the most up-to-date information on your specific supply.
Geology & Source: Lockyer Valley groundwater; very hard water reflects high mineral content
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