Beverly Hills, CA tap water
Supplied mostly by Beverly Hills-City, Water Dept., plus 1 other utility. 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 0.41 ppm of ammonia here. Some utilities switch to plain chlorine for a few weeks a year.
Safety for fish and shrimp
Ammonia (with conditioner)
Estimate0.92–1.07 ppm (Worth knowing)
Typical 1 ppm
About 0.58 ppm is already in the water, and a conditioner frees about 0.41 ppm more 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 Los Angeles Department of Water and Power (LADWP) reports; California Water Board lab results (2024–2025).
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 (2023–2026).
Nitrate (NO₃)
Up to 6.2 ppm (Low)
Typically not detected
Not detected in testing, so water changes lower your tank's nitrate well.
From California Water Board lab results; Los Angeles Department of Water and Power (LADWP)'s 2025 water quality report (2023–2025).
Copper at home taps
0.07–0.53 ppm (Low)
Typical 0.07 ppm
Low. Water that sits in household pipes overnight can carry more than this.
From California Water Board lab results; Los Angeles Department of Water and Power (LADWP)'s 2025 water quality report (2023–2025).
Chlorine or chloramine at the tap
1.4–2 ppm
Typical 1.7 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: Los Angeles Department of Water and Power (LADWP)'s 2025 water quality report.
Water chemistry
General hardness
78–280 ppm
Typical 136 ppm
Moderately soft to medium. Suits most community fish and plants.
From California Water Board lab results; Los Angeles Department of Water and Power (LADWP)'s 2025 water quality report (2023–2026).
Carbonate hardness (alkalinity)
86–210 ppm
Typical 210 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From California Water Board lab results; Los Angeles Department of Water and Power (LADWP)'s 2025 water quality report (2023–2026).
pH
7–8.7
Typical 8.3
Alkaline. Many utilities raise pH to protect pipes. Stability matters more than the exact number.
From California Water Board lab results; Los Angeles Department of Water and Power (LADWP)'s 2025 water quality report (2023–2026).
Total dissolved solids
187–625 ppm
Typical 380 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 California Water Board lab results; Los Angeles Department of Water and Power (LADWP)'s 2025 water quality report (2023–2026).
Who supplies Beverly Hills, CA
Beverly Hills-City, Water Dept.
Serves all residents · Buys water from Metropolitan Water Dist. of So. Cal. · Chloramine
- 2025 water quality report
Los Angeles Department of Water and Power (LADWP)
Serves 43% 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.
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Compiled by Shoal & Stem from public records. Free to cite with a link.