Jurupa Valley, CA tap water
Supplied mostly by Jurupa Community Services District, plus 2 other utilities. Here's what the 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 0.32 ppm of ammonia here. Some utilities switch to plain chlorine for a few weeks a year.
Safety for fish and shrimp
Ammonia (with conditioner)
Estimate0.12–0.97 ppm (Low)
Typical 0.32 ppm
This is what a conditioner frees when it breaks the chloramine apart. A cycled filter clears it within a day.
Estimated from the chloramine level Jurupa Community Services District reports (2025).
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; EPA monitoring data (2019–2026).
Nitrate (NO₃)
5.8–42 ppm (High)
Typical 25 ppm
High for tap water. Water changes can't take your tank's nitrate below this level.
From Jurupa Community Services District's 2025 water quality report; California Water Board lab results (2023–2026).
Copper at home taps (first draw)
0.01–0.26 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.
From Jurupa Community Services District's 2025 water quality report; California Water Board lab results (2023–2026).
Chlorine or chloramine at the tap
0.5–4 ppm
Typical 1.3 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: Jurupa Community Services District's 2025 water quality report.
Water chemistry
General hardness
74–390 ppm
Typical 162 ppm
Moderately hard. Great for livebearers, and most community fish adapt.
From Jurupa Community Services District's 2025 water quality report; California Water Board lab results; California Water Board lab results, measured before treatment (2023–2025).
Carbonate hardness (alkalinity)
56–220 ppm
Typical 108 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From Jurupa Community Services District's 2025 water quality report; California Water Board lab results; California Water Board lab results, measured before treatment (2023–2026).
pH
7.6–8
Typical 7.9
Most community fish do well here. Stable water matters more than the exact number.
From California Water Board lab results; California Water Board lab results, measured before treatment (2023–2026).
Total dissolved solids
241–560 ppm
Typical 344 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 Jurupa Community Services District's 2025 water quality report; California Water Board lab results; California Water Board lab results, measured before treatment (2023–2026).
Who supplies Jurupa Valley, CA
- 2025 water quality report
Jurupa Community Services District
Serves 60% of residents · Buys water from Chino Basin Desalter Auth. - Desalter 1 · Chloramine
Rubidoux Community SD
Serves 29% of residents · Groundwater (wells) · Chloramine
Santa Ana River Water Company
Serves 8% of residents · Groundwater (wells) · 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.