WATER SUPPLIER
Riverwoods's published water source
Surface water purchased from the Village of Northbrook, which draws water from Lake Michigan; the report also states that Riverwoods purchased water from Deerfield in 2025.
Riverwoods, Lake County water service
Water Softener and Filtration in Riverwoods, IL
Riverwoods’ current 2025 Annual Drinking Water Quality Report says the Village purchases surface water from Northbrook, which draws from Lake Michigan, and that Riverwoods also purchased water from Deerfield in 2025. The report is helpful system context, but it does not describe water at a particular Riverwoods home. We start with the home’s plumbing, water source, and household goals—not a system-wide assumption. A utility report describes the public system. It is not a reading from one home's tap, where plumbing, fixtures, sample location, and existing treatment can change the experience.
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LOCAL WATER NUMBERS
What Riverwoods's report lists
- The Riverwoods disinfectants and disinfection by-products table lists chlorine with a 2025 highest level detected of 1.1 ppm and a reported range of 0.77–1.16 ppm.
- The 2024 lead-and-copper table reports a lead 90th-percentile result of 2.5 ppb and zero sites over the lead action level.
This report does not publish a hardness figure. Ask us to test your water instead of using a guessed number.
This municipal report presents system-wide information and does not measure water at an individual Riverwoods home. Plumbing, fixtures, existing equipment, sampling location, and property-specific conditions can affect water at the tap; the report alone should not be used to select equipment for a home.
HOMES IN THIS AREA
Riverwoods's housing age context
The 2020-2024 ACS estimate puts the median year built for Riverwoods housing units at 1988, a late twentieth-century housing era. That is context for discussing plumbing access, fixture age, and updates at a specific address, not a condition report for any one home.
MORE LOCAL SERVICE AREAS
Nearby towns we serve
Back to Lake County service areaTreatment Options
Whole-home options for Riverwoods properties
A municipal report is not an in-home diagnosis. We review the property’s water context, plumbing, and goals before discussing an appropriate whole-home scope.
- Whole-home water softenersA whole-home softener can be discussed after reviewing the property’s actual water information, plumbing, and household priorities.
- Whole-home carbon filtrationA whole-home carbon-filtration option can be evaluated against the home’s water information and the household’s preferences.
- Salt-free conditioningSalt-free conditioning may be considered when that approach fits the home, plumbing, and homeowner goals.
- Private-well treatment after testingFor a property using a private well, treatment is considered only after current laboratory results or a confirmed field test; this municipal report is not a well-water test.
- Reverse osmosis as a whole-home add-onKitchen tank or tankless reverse osmosis is available only as an add-on to a whole-home installation.
Local Questions
Riverwoods water questions
Town FAQ source: Annual Drinking Water Quality Report 2025 (2025)
Where does Riverwoods’ public water come from?
The Village’s 2025 report says the source is surface water purchased from Northbrook, which draws water from Lake Michigan. It also says Riverwoods purchased water from Deerfield in 2025. Confirm the water source at a specific address before considering equipment.
What period does the current Riverwoods report cover?
The current Annual Drinking Water Quality Report covers January 1 through December 31, 2025. It is a report for the public system, rather than a sampling result from a particular home.
What does the report list for chlorine?
In the Riverwoods 2025 disinfectants and disinfection by-products table, chlorine is listed with a highest detected level of 1.1 ppm and a reported range of 0.77–1.16 ppm. That system table does not establish a result at an individual tap.
What does the report say about the lead sampling table?
The report’s 2024 lead-and-copper table shows a 2.5 ppb lead 90th-percentile result and zero sites over the lead action level. That system-wide result does not identify plumbing materials or conditions in a specific Riverwoods home.
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