Shoal & Stem

Sanatoga, PA tap water

Supplied mostly by Pottstown Borough Water Auth, 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

0.13–0.39 ppm (Low)

Typical 0.28 ppm

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 Pennsylvania American Water – Royersford reports (2012–2019).

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)

12–20 ppm (Worth knowing)

Typical 12 ppm

Water changes can't take your tank's nitrate below this level.

From EPA monitoring data (2012–2019).

Chlorine or chloramine at the tap

0.4–1.6 ppm

Typical 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 (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)

79–80 ppm

Typical 80 ppm

Moderate buffering. pH should stay fairly steady.

From EPA monitoring data, measured before treatment (2012–2019).

pH

Not published yet

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

  • Pottstown Borough Water Auth and Pennsylvania American Water – Royersford add phosphate to protect pipes. It can feed algae in tanks without much plant growth.

Who supplies Sanatoga, PA

  • Pottstown Borough Water Auth

    Serves 68% of residents · Lake or river water · Chlorine

  • Pennsylvania American Water – Royersford

    Serves 8% of residents · Lake or river water · 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 Pottstown Borough Water Auth

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