Shoal & Stem

New Preston, CT tap water

About 38% of New Preston is inside a utility's service area. Homes outside it likely use private wells, which no utility tests.

Disinfectant

Not confirmed

We couldn't confirm how utility water here is disinfected. US utilities use chlorine or chloramine, and chloramine doesn't gas off when water sits out. Private wells aren't treated by a utility, so there's no chlorine or chloramine unless a treatment system adds 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 (2012–2019).

Nitrate (NO₃)

Up to 6.2 ppm (Low)

Typically not detected

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

From EPA monitoring data (2012–2019).

Water chemistry

General hardness

Area estimate

40–188 ppm

Typical 86 ppm

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

Area estimate from nearby wells: USGS well samples in your county (2002–2017).

Carbonate hardness (alkalinity)

Area estimate

20–110 ppm

Typical 60 ppm

Moderate buffering. pH should stay fairly steady.

Area estimate from nearby wells: USGS well samples in your county (2002–2017).

pH

7–8.1

Typical 7.1

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

From EPA monitoring data (2017–2019).

Total dissolved solids

Area estimate

81–303 ppm

Typical 151 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 (2002–2017).

Who supplies New Preston, CT

  • New Preston Water Co

    Serves 28% of residents · Groundwater (wells) · Disinfectant not listed

  • Aquarion-Quarry Ridge

    Serves 11% 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.

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