Garner, NC tap water
Supplied by City of Raleigh. 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 0.55 ppm of ammonia here. Some utilities switch to plain chlorine for a few weeks a year.
Safety for fish and shrimp
Ammonia (with conditioner)
EstimateUp to 0.97 ppm (Worth knowing)
Typical 0.55 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 City of Raleigh reports (2025).
Nitrate (NO₃)
Not detected (Low)
Not detected in testing, so water changes lower your tank's nitrate well.
From EPA monitoring data (2012–2019).
Copper at home taps (first draw)
0.04–0.08 ppm (Low)
The 90th percentile of first-draw samples from homes: water that sat in household pipes for at least six hours.
Low. Water that sits in household pipes overnight can carry more than this.
Published by your utility: City of Raleigh's 2025 water quality report.
Chlorine or chloramine at the tap
0–4 ppm
Typical 2.3 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: City of Raleigh's 2025 water quality report.
Water chemistry
General hardness
22–35 ppm
Typical 25 ppm
Soft. Good for tetras, rasboras and most shrimp. Livebearers, snails and African cichlids prefer harder water.
Published by your utility: City of Raleigh's 2025 water quality report.
Carbonate hardness (alkalinity)
23–46 ppm
Typical 30 ppm
Little buffering. pH can drop quickly between water changes, especially with CO₂ or an older tank.
Published by your utility: City of Raleigh's 2025 water quality report.
pH
8.3–8.4
Typical 8.4
Alkaline. Many utilities raise pH to protect pipes. Stability matters more than the exact number.
Published by your utility: City of Raleigh's 2025 water quality report.
Total dissolved solids
1–2 ppm
Typical 1 ppm
A rough measure of everything dissolved in the water. RO water reads near 0, so TDS is a quick way to compare waters.
Published by your utility: City of Raleigh's 2025 water quality report.
- City of Raleigh adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Garner, NC
- 2025 water quality report
City of Raleigh
Serves 70% 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.