Hector, MN tap water
Supplied by Hector. 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)
Area estimate0.3–254 ppm (Low)
Typical 4.7 ppm
Low, so water changes lower your tank's nitrate well.
Area estimate from nearby wells: USGS well samples in your county (2011–2017).
Chlorine or chloramine at the tap
4.1 ppm
At tap levels, chlorine and chloramine are toxic to fish, shrimp and the bacteria in a filter. Water conditioners are made for this range.
From EPA monitoring data (2015).
Water chemistry
General hardness
Area estimate155–667 ppm
Typical 233 ppm
Hard. Ideal for livebearers and African cichlids. Soft-water species may struggle to breed.
Area estimate from nearby wells: USGS well samples in your county (2017).
Carbonate hardness (alkalinity)
Area estimate337–595 ppm
Typical 373 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
Area estimate from nearby wells: USGS well samples in your county (2017).
pH
7.7–7.8
Typical 7.7
Most community fish do well here. Stable water matters more than the exact number.
From EPA monitoring data (2012–2019).
Total dissolved solids
Area estimate395–554 ppm
Typical 429 ppm
A rough measure of everything dissolved in the water. RO water reads near 0, so TDS is a quick way to compare waters.
Area estimate from nearby wells: USGS well samples in your county (2017).
- Hector adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Hector, MN
Hector
Serves 90% 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.