Las Cruces, NM tap water
Supplied by Las Cruces Municipal Water System. 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
Nitrate (NO₃)
Area estimate0.4–44 ppm (Low)
Typical 5.1 ppm
Water changes can't take your tank's nitrate below this level.
Area estimate from nearby wells: USGS well samples in your county (2000–2021).
Water chemistry
General hardness
Area estimate78–742 ppm
Typical 277 ppm
Hard. Ideal for livebearers and African cichlids. Soft-water species may struggle to breed.
Area estimate from nearby wells: USGS well samples in your county (2000–2022).
Carbonate hardness (alkalinity)
Area estimate70–360 ppm
Typical 196 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
Area estimate from nearby wells: USGS well samples in your county (2000–2022).
pH
Area estimate7.2–8.4
Typical 7.5
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 (2000–2022).
Total dissolved solids
Area estimate240–1530 ppm
Typical 543 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 (2000–2022).
Who supplies Las Cruces, NM
Las Cruces Municipal Water System
Serves 89% 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.