Lansdowne, VA tap water
Supplied mostly by Loudoun Water, 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)
EstimateUp to 1.14 ppm (Worth knowing)
Typical 0.73 ppm
This is what a conditioner frees when it breaks the chloramine apart. A cycled filter clears it within a day; a big water change in a new or very small tank adds more of it at once. Some conditioners also bind ammonia for a day or so.
Estimated from the chloramine level Loudoun Water reports (2025).
Nitrite (NO₂)
Not detected (Low)
Not detected in testing, so any nitrite in your tank comes from the tank itself.
From EPA monitoring data (2014–2016).
Nitrate (NO₃)
3.8–5.2 ppm (Low)
Typical 4.5 ppm
Low, so water changes lower your tank's nitrate well.
Published by your utility: Loudoun Water's 2025 water quality report.
Copper at home taps (first draw)
Up to 0.28 ppm (Worth knowing)
The 90th percentile of first-draw samples from homes: water that sat in household pipes for at least six hours.
Shrimp and snails are sensitive to copper. Water that sits in household pipes picks up the most; it drops once the tap has run for a minute.
Published by your utility: Loudoun Water's 2025 water quality report.
Chlorine or chloramine at the tap
0–4.7 ppm
Typical 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.
Published by your utility: Loudoun Water's 2025 water quality report.
Water chemistry
General hardness
80–170 ppm
Typical 125 ppm
Moderately soft to medium. Suits most community fish and plants.
Published by your utility: Loudoun Water's website.
Carbonate hardness (alkalinity)
50–214 ppm
Typical 78 ppm
Moderate buffering. pH should stay fairly steady.
From EPA monitoring data (2012–2019).
pH
6.6–8.5
Typical 7.8
Most community fish do well here. Stable water matters more than the exact number.
From Loudoun Water's website; EPA monitoring data (2012–2019).
- Loudoun Water adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Lansdowne, VA
- 2025 water quality report
Loudoun Water
Serves 81% of residents · Lake or river water · Chloramine
Town of Leesburg
Serves 6% of residents · Lake or river water · 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.