Bethel Island, CA tap water
Supplied mostly by Pleasantimes Mutual Water Co, plus 3 other utilities. Here's what the water means for your fish.
Disinfectant
Not confirmed
We couldn't confirm how your water is disinfected. US utilities use chlorine or chloramine, and chloramine doesn't gas off when water sits out.
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 (2012).
Nitrate (NO₃)
Not detected (Low)
Not detected in testing, so water changes lower your tank's nitrate well.
From California Water Board lab results, measured before treatment; EPA monitoring data (2012–2026).
Copper at home taps
Not detected (Low)
Not detected in testing. Water that sits in household pipes overnight can still pick some up.
From California Water Board lab results (2023–2025).
Water chemistry
General hardness
128–493 ppm
Typical 223 ppm
Hard. Ideal for livebearers and African cichlids. Soft-water species may struggle to breed.
From California Water Board lab results, measured before treatment (2024–2025).
Carbonate hardness (alkalinity)
190–240 ppm
Typical 220 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From California Water Board lab results, measured before treatment (2024–2025).
pH
7.2–8.1
Typical 8.1
Alkaline. Many utilities raise pH to protect pipes. Stability matters more than the exact number.
From California Water Board lab results, measured before treatment; EPA monitoring data (2012–2025).
Total dissolved solids
690–1390 ppm
Typical 790 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, measured before treatment (2024–2025).
Who supplies Bethel Island, CA
Pleasantimes Mutual Water Co
Serves 24% of residents · Groundwater (wells) · Disinfectant not listed
Willow Mobile Home Park
Serves 18% of residents · Groundwater (wells) · Chlorine
Anglers Subdivision 4
Serves 11% of residents · Groundwater (wells) · Disinfectant not listed
Bethel Island Estates
Serves 6% 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.
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Compiled by Shoal & Stem from public records. Free to cite with a link.