Shoal & Stem

Whitinsville, MA tap water

Supplied mostly by Whitinsville Water Company, 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 (2012–2018).

Nitrate (NO₃)

0.4–2.5 ppm (Low)

Typical 1.4 ppm

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

From EPA monitoring data; Whitinsville Water Company, which supplies Northbridge Water Division (2012–2019).

Water chemistry

General hardness

Area estimate

34–170 ppm

Typical 83 ppm

Moderately soft to medium. Suits most community fish and plants.

Area estimate from nearby wells: USGS well samples in your county (2002–2019).

Carbonate hardness (alkalinity)

Area estimate

24–93 ppm

Typical 58 ppm

Moderate buffering. pH should stay fairly steady.

Area estimate from nearby wells: USGS well samples in your county (2002–2019).

pH

7–7.1

Typical 7

Most community fish do well here. Stable water matters more than the exact number.

From EPA monitoring data; Whitinsville Water Company, which supplies Northbridge Water Division (2012–2019).

Total dissolved solids

Area estimate

81–238 ppm

Typical 131 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 (2002–2019).

  • Whitinsville Water Company and Northbridge Water Division add phosphate to protect pipes. It can feed algae in tanks without much plant growth.

Who supplies Whitinsville, MA

  • Whitinsville Water Company

    Serves 86% of residents · Groundwater fed by surface water · Chlorine

  • Northbridge Water Division

    Serves 8% of residents · Buys water from Whitinsville Water Company · 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.

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