Santa Clarita, CA tap water
Supplied by Santa Clarita Valley Water Agency. 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 a little ammonia. Some utilities switch to plain chlorine for a few weeks a year.
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 California Water Board lab results (2023–2026).
Nitrate (NO₃)
1.8–31 ppm (Low)
Typical 3.1 ppm
Low, so water changes lower your tank's nitrate well.
Published by your utility: Santa Clarita Valley Water Agency's 2024 water quality report.
Copper at home taps (first draw)
0.37 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: Santa Clarita Valley Water Agency's 2024 water quality report.
Water chemistry
General hardness
150–377 ppm
Typical 320 ppm
Hard. Ideal for livebearers and African cichlids. Soft-water species may struggle to breed.
Published by your utility: Santa Clarita Valley Water Agency's 2024 water quality report.
Carbonate hardness (alkalinity)
80–168 ppm
Typical 102 ppm
Moderate buffering. pH should stay fairly steady.
Published by your utility: Santa Clarita Valley Water Agency's 2024 water quality report.
pH
7.1–8.1
Typical 7.4
Most community fish do well here. Stable water matters more than the exact number.
Published by your utility: Santa Clarita Valley Water Agency's 2024 water quality report.
Total dissolved solids
160–940 ppm
Typical 599 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: Santa Clarita Valley Water Agency's 2024 water quality report.
- Santa Clarita Valley Water Agency softens its water at the plant, so it may be softer than the local groundwater.
Who supplies Santa Clarita, CA
- 2024 water quality report
Santa Clarita Valley Water Agency
Serves all 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.