Where Springfield Lakes’s
tap water comes from.
Springfield Lakes is on the Urban Utilities drinking water network, supplied from Seqwater’s Mt Crosby treatment plants on the Brisbane River. The chain is the same for every connected home in the city: water released from Wivenhoe Dam travels down the Mid Brisbane River to Mt Crosby, where Seqwater’s East Bank and West Bank plants treat it, and Urban Utilities pumps it through its Ipswich reservoirs to your meter. Seqwater publishes a report on the City of Ipswich zone every month; the headline figures are in the table below.
Two things are added on purpose. The disinfectant is chloramine rather than plain chlorine, which holds a residual over the long mains out to Springfield Lakes and is the reason a standard carbon jug does less than people expect. Fluoride is dosed to a target of 0.8 mg/L under Queensland law. Both matter to fish keepers, who need to neutralise the chloramine, and to anyone on home dialysis, who should talk to their unit about filtration.
Mineral spike after heavy rain, 20 November 2024. Treated water from the Mt Crosby plants recorded total dissolved solids of 700 and 730 mg/L (guideline 600), chloride of 270 and 300 mg/L (guideline 250) and hardness of 250 mg/L (guideline 200) after a significant rainfall event pushed natural mineral concentrations up in the Mid Brisbane River. Five aesthetic guideline exceedances, no health exceedance. Seqwater Drinking Water Service Annual Report 2024–25
How hard is the water in Springfield Lakes?
Network water here is moderately hard: 80–115 mg/L as CaCO₃, against an aesthetic guideline of 200 mg/L, and it spiked to 250 mg/L in November 2024 after heavy rain washed minerals into the Mid Brisbane River. In practice that means scale on kettles, shower screens and, most expensively, on hot water elements and heat exchangers. It is why a hot water system in Springfield Lakes benefits from scale protection on its feed, and why a whole-house softener is usually more than the water justifies. Hot water systems in Springfield Lakes ↗
The pH is going up
Seqwater is lifting the pH of water leaving Mt Crosby from about 7.8 to a target of 8.4 from mid-August 2026, to extend disinfection in warm months, raise alkalinity and reduce corrosion in the network. The change covers Brisbane, Ipswich, Logan, Moreton Bay and parts of the Scenic Rim. For Springfield Lakes homes that is good news for copper pipes and brass fittings, which corrode less in slightly more alkaline water, and a small nudge towards scale in hot water systems. Fish keepers will want to re-check their tank water after the change.
What the pipes in Springfield Lakes add
Homes in Springfield Lakes are recent enough to run copper or PEX with modern fittings, so the water arrives at the tap much as it left the reservoir. New copper can leave a metallic taste for the first few months. The weak point is not the pipe but the braided flexible hoses under basins and behind toilets, which fail from about ten years on and flood a house rather than colour the water.
The 2021 Census counted 5,952 private dwellings in Springfield Lakes, 96% of them separate houses. About 43% of households rent, so for most homes a water problem goes to the property manager first, and we deal with them directly.
Opossum Creek: where Springfield Lakes’s water goes
The tidal Brisbane River below Mt Crosby Weir, and the creeks that run into it from the eastern side of Ipswich: Woogaroo, Six Mile, Goodna and Opossum creeks. Greater Springfield, Goodna, Redbank Plains and the riverside acreage suburbs drain here. Springfield Lakes’s stormwater reaches Opossum Creek and the Springfield lakes.
Healthy Land & Water rated the Lower Brisbane River catchment “Poor” for environmental condition in the 2025 Report Card, with social and economic benefits rated very high. The 2025 Report Card notes nitrogen concentrations rising in the Brisbane estuary and a general decline in catchment condition across the region since 2021. 2025 Report Card ↗
The tidal Brisbane River below Mt Crosby Weir is monitored through the Queensland Government’s estuarine ambient water quality program rather than the freshwater gauge network. Water Monitoring Information Portal ↗
Where the wastewater goes
Springfield Lakes is sewered. Wastewater goes to one of Urban Utilities’ four Ipswich treatment plants, at Bundamba, Goodna, Carole Park and Rosewood, and treated water is released to the rivers under Queensland environmental authorities. What stays yours is the sewer drain under the house and out to the connection point, which is where blockages, root intrusion and overflows happen. Sewer drain repairs in Springfield Lakes ↗
Sources: Seqwater monthly water quality report, City of Ipswich zone · Seqwater Drinking Water Service Annual Report 2024–25 · Seqwater: pH level of drinking water enhanced in parts of South East Queensland · Urban Utilities: Water hardness · Healthy Land & Water Report Card 2025: Key Messages & Catchment Summaries · ABS 2021 Census QuickStats. Figures are for the City of Ipswich supply zone; Seqwater and Urban Utilities do not publish results by suburb. Housing descriptions are general observations, not a survey of any individual property. Data last updated 2026-09-16.