Shoal & Stem

Round Lake, IL tap water

Supplied by Round Lake. Here's what its 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

Nitrate (NO₃)

Supplier's figure

1.8 ppm (Low)

Low, so water changes lower your tank's nitrate well.

From the utility that supplies yours: Central Lake County Jawa, which supplies Round Lake (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 figure

111 ppm

Strong buffering. pH stays steady and hard to lower without RO water.

From the utility that supplies yours: Central Lake County Jawa, which supplies Round Lake (2017).

pH

Not published yet

We haven't found this number yet. A drop test kit gives you your exact reading.

  • Round Lake adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.

Who supplies Round Lake, IL

  • Round Lake

    Serves 93% of residents · Buys water from Central Lake County Jawa · 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.

Also supplied by Round Lake

More Illinois cities

Look up another city