Mission, SD tap water
Supplied mostly by Mission Water System, plus 1 other utility. Here's what the water means for your fish.
Disinfectant
Chlorine or chloramine
Utilities here use chlorine or chloramine, depending on which one serves your address. Chlorine slowly gases off from standing water; chloramine doesn't.
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 (2016–2019).
Nitrate (NO₃)
Supplier's figureUp to 5.1 ppm (Low)
Typically not detected
Not detected in testing, so water changes lower your tank's nitrate well.
From the utility that supplies yours: Mni Wiconi WTP / Coreline, which supplies Mission Water System; 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 figure176–177 ppm
Typical 177 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From the utility that supplies yours: Mni Wiconi WTP / Coreline, which supplies Mission Water System, measured before treatment (2012–2019).
pH
Not published yet
We haven't found this number yet. A drop test kit gives you your exact reading.
Who supplies Mission, SD
Mission Water System
Serves 54% of residents · Buys water from Sicangu Mni Wiconi Rural Water System · Chloramine
Rosebud Rural Water System
Serves 21% of residents · Groundwater (wells) · 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.