Mount Cobb, PA tap water
Supplied mostly by Aqua PA Jefferson Heights, plus 3 other utilities. Here's what the 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)
Up to 5.4 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
0.9–1.8 ppm
Typical 1.4 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
Area estimate67–143 ppm
Typical 97 ppm
Moderately soft to medium. Suits most community fish and plants.
Area estimate from nearby wells: USGS well samples in your county (2022).
Carbonate hardness (alkalinity)
Area estimate54–125 ppm
Typical 67 ppm
Moderate buffering. pH should stay fairly steady.
Area estimate from nearby wells: USGS well samples in your county (2022).
pH
Area estimate7–7.8
Typical 7.8
Most community fish do well here. Stable water matters more than the exact number.
Area estimate from nearby wells: USGS well samples in your county (2022).
Total dissolved solids
Area estimate79–187 ppm
Typical 127 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 (2022).
- Aqua PA Jefferson Heights adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Mount Cobb, PA
Aqua PA Jefferson Heights
Serves 26% of residents · Groundwater (wells) · Chlorine
Aqua PA Water Co Mount Cobb
Serves 23% of residents · Groundwater (wells) · Chlorine
Belle Aire Acres
Serves 9% of residents · Groundwater (wells) · Chlorine
Happy Acres Development
Serves 6% 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.