Silverdale, PA tap water
Supplied by Hilltown Twp Water&sewer Auth. Here's what its water means for your fish.
Disinfectant
Chloramine
Your water is treated with chloramine. Unlike chlorine, it doesn't gas off when water sits out, and many pitcher and fridge filters aren't rated to remove it. Conditioners that list chloramine on the label break it apart, which frees about 0.24 ppm of ammonia here. Some utilities switch to plain chlorine for a few weeks a year.
Safety for fish and shrimp
Ammonia (with conditioner)
Estimate0.12–0.33 ppm (Low)
Typical 0.24 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 Hilltown Twp Water&sewer Auth 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)
Up to 7 ppm (Low)
Typically not detected
Not detected in testing, so water changes lower your tank's nitrate well.
From EPA monitoring data (2012–2019).
Chlorine or chloramine at the tap
0.5–1.4 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)
Supplier's figure52–195 ppm
Typical 153 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From the utility that supplies yours: North Penn Water Authority, which supplies Hilltown Twp Water&sewer Auth (2016–2019).
pH
Supplier's figure7.1–8.2
Typical 7.7
Most community fish do well here. Stable water matters more than the exact number.
From the utility that supplies yours: North Penn Water Authority, which supplies Hilltown Twp Water&sewer Auth (2016–2019).
- Hilltown Twp Water&sewer Auth adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Silverdale, PA
Hilltown Twp Water&sewer Auth
Serves 63% of residents · Buys water from North Penn 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.