Riverwoods, IL tap water
Supplied mostly by Riverwoods, plus 2 other utilities. Here's what the water means for your fish.
Disinfectant
Chlorine
Your water is treated with chlorine. It slowly gases off from standing water, and any water conditioner removes it.
Safety for fish and shrimp
Nitrite (NO₂)
Not detected (Low)
Not detected in testing, so any nitrite in your tank comes from the tank itself.
From EPA monitoring data (2012–2019).
Nitrate (NO₃)
Supplier's figureUp to 1.5 ppm (Low)
Typical 1.4 ppm
Low, so water changes lower your tank's nitrate well.
From the utility that supplies yours: Northbrook, which supplies Riverwoods; Highland Park, which supplies Lincolnshire; EPA monitoring data (2012–2019).
Water chemistry
General hardness
Not published yet
We haven't found this number yet. A drop test kit gives you your exact reading.
Carbonate hardness (alkalinity)
Supplier's figure90–160 ppm
Typical 107 ppm
Moderate buffering. pH should stay fairly steady.
From the utility that supplies yours: Northbrook, which supplies Riverwoods; Highland Park, which supplies Lincolnshire; EPA monitoring data (2017–2019).
pH
Not published yet
We haven't found this number yet. A drop test kit gives you your exact reading.
- Riverwoods, Lincolnshire and Lcpw - Pekara Subdivision add phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Riverwoods, IL
Riverwoods
Serves 44% of residents · Buys water from Northbrook · Chlorine
Lincolnshire
Serves 9% of residents · Buys water from Highland Park · Chlorine
Lcpw - Pekara Subdivision
Serves 7% of residents · Buys water from Buffalo Grove · Chlorine
Our data comes from public records and is still incomplete. Many utilities don't publish every number, so we're adding more all the time. Your city's range is a starting point: testing your own tap is the only way to know exactly what's in it.
Tap water lookup covers US cities only for now. Want to know why it matters? Read our story on tap water.
Compiled by Shoal & Stem from public records. Free to cite with a link.