Shoal & Stem

Northfield, MA tap water

Supplied mostly by East Northfield Water Co, plus 1 other utility. 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 (2014–2017).

Nitrate (NO₃)

Up to 2.1 ppm (Low)

Typically not detected

Not detected in testing, so water changes lower your tank's nitrate well.

From EPA monitoring data (2013–2019).

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)

Not published yet

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

pH

Not published yet

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

  • East Northfield Water Co adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.

Who supplies Northfield, MA

  • East Northfield Water Co

    Serves 52% of residents · Lake or river water · Chlorine

  • Northfield Water District

    Serves 45% of residents · Groundwater (wells) · Disinfectant not listed

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.

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