Chino Hills, CA tap water
Supplied by City of Chino Hills. 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 EPA monitoring data (2014).
Nitrate (NO₃)
16–17 ppm (Worth knowing)
Typical 16 ppm
Water changes can't take your tank's nitrate below this level.
From California Water Board lab results (2026).
Copper at home taps
0.08 ppm (Low)
Low. Water that sits in household pipes overnight can carry more than this.
From California Water Board lab results (2024).
Water chemistry
General hardness
Supplier's figure84–180 ppm
Typical 150 ppm
Moderately hard. Great for livebearers, and most community fish adapt.
From the utility that supplies yours: Chino Basin Desalter Auth. - Desalter 1 and Water Facilities Authority-Jpa and Monte Vista WD, which supplies City of Chino Hills (2023–2026).
Carbonate hardness (alkalinity)
Supplier's figure72–160 ppm
Typical 83 ppm
Moderate buffering. pH should stay fairly steady.
From the utility that supplies yours: Chino Basin Desalter Auth. - Desalter 1 and Water Facilities Authority-Jpa and Monte Vista WD, which supplies City of Chino Hills (2023–2026).
pH
7.7
Most community fish do well here. Stable water matters more than the exact number.
From EPA monitoring data (2014).
Total dissolved solids
Supplier's figure190–370 ppm
Typical 275 ppm
A rough measure of everything dissolved in the water. RO water reads near 0, so TDS is a quick way to compare waters.
From the utility that supplies yours: Chino Basin Desalter Auth. - Desalter 1 and Water Facilities Authority-Jpa and Monte Vista WD, which supplies City of Chino Hills (2023–2026).
- City of Chino Hills adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Chino Hills, CA
City of Chino Hills
Serves all residents · Buys water from Chino Basin Desalter Auth. - Desalter 1 · 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.
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Compiled by Shoal & Stem from public records. Free to cite with a link.