Trexlertown, PA tap water
Supplied by Lca Wlsa Central Division. Here's what its 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 (2012–2019).
Nitrate (NO₃)
17–29 ppm (Worth knowing)
Typical 24 ppm
High for tap water. Water changes can't take your tank's nitrate below this level.
From EPA monitoring data (2012–2019).
Chlorine or chloramine at the tap
0.6–1.1 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
Supplier's figure180–284 ppm
Typical 257 ppm
Hard. Ideal for livebearers and African cichlids. Soft-water species may struggle to breed.
From the utility that supplies yours: Lca Allentown Division, which supplies Lca Wlsa Central Division (2025).
Carbonate hardness (alkalinity)
134–202 ppm
Typical 170 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From EPA monitoring data (2014).
pH
Supplier's figure7.4–8.2
Typical 7.7
Most community fish do well here. Stable water matters more than the exact number.
From the utility that supplies yours: Lca Allentown Division, which supplies Lca Wlsa Central Division (2025).
Total dissolved solids
Supplier's figure392–433 ppm
Typical 413 ppm
A rough measure of everything dissolved in the water. RO water reads near 0, so TDS is a quick way to compare waters.
From the utility that supplies yours: Lca Allentown Division, which supplies Lca Wlsa Central Division (2025).
- Lca Wlsa Central Division adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Trexlertown, PA
Lca Wlsa Central Division
Serves 99% of residents · Buys water from Lca Allentown Division · 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.
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Compiled by Shoal & Stem from public records. Free to cite with a link.