Shoal & Stem

Gilbertsville, PA tap water

Supplied mostly by Aqua PA Superior Main 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

Ammonia (with conditioner)

Estimate

0.16 ppm (Low)

This is what a conditioner frees when it breaks the chloramine apart. A cycled filter clears it within a day.

Estimated from the chloramine level Dtma Cedar Crest Farms reports (2016–2019).

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 16 ppm (Low)

Typical 2.2 ppm

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

From EPA monitoring data; North Wales Water Authority, which supplies Dtma Cedar Crest Farms (2012–2019).

Chlorine or chloramine at the tap

0.6–1.6 ppm

Typical 1.3 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 (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 figure

22–179 ppm

Typical 80 ppm

Moderate buffering. pH should stay fairly steady.

From the utility that supplies yours: Pottstown Borough Water Auth, which supplies Aqua PA Superior Main System, measured before treatment; North Wales Water Authority, which supplies Dtma Cedar Crest Farms (2012–2019).

pH

Supplier's figure

6–7.5

Typical 7.3

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

From the utility that supplies yours: North Wales Water Authority, which supplies Dtma Cedar Crest Farms (2016–2019).

  • Aqua PA Superior Main System and Dtma Cedar Crest Farms add phosphate to protect pipes. It can feed algae in tanks without much plant growth.

Who supplies Gilbertsville, PA

  • Aqua PA Superior Main System

    Serves 50% of residents · Buys water from Pottstown Borough Water Auth · Chlorine

  • Dtma Cedar Crest Farms

    Serves 10% of residents · Buys water from North Wales Water Authority · Chloramine

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.

Also supplied by Aqua PA Superior Main System

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