East Quincy, CA tap water
About 12% of East Quincy is inside a utility's service area. Homes outside it likely use private wells, which no utility tests.
Disinfectant
Not confirmed
We couldn't confirm how utility water here is disinfected. US utilities use chlorine or chloramine, and chloramine doesn't gas off when water sits out. Private wells aren't treated by a utility, so there's no chlorine or chloramine unless a treatment system adds it.
Safety for fish and shrimp
Nitrate (NO₃)
Up to 3.2 ppm (Low)
Typical 1.4 ppm
Low, so water changes lower your tank's nitrate well.
From California Water Board lab results, measured before treatment (2023–2026).
Copper at home taps
0.13 ppm (Worth knowing)
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 California Water Board lab results (2023).
Water chemistry
General hardness
28–67 ppm
Typical 51 ppm
Soft. Good for tetras, rasboras and most shrimp. Livebearers, snails and African cichlids prefer harder water.
From California Water Board lab results, measured before treatment (2023).
Carbonate hardness (alkalinity)
43–70 ppm
Typical 49 ppm
Moderate buffering. pH should stay fairly steady.
From California Water Board lab results, measured before treatment (2023).
pH
6.6–7.3
Typical 6.9
Most community fish do well here. Stable water matters more than the exact number.
From California Water Board lab results, measured before treatment (2023).
Total dissolved solids
Area estimate39–150 ppm
Typical 87 ppm
A rough measure of everything dissolved in the water. RO water reads near 0, so TDS is a quick way to compare waters.
Area estimate from nearby wells: USGS well samples in your county (2008–2020).
Who supplies East Quincy, CA
American Valley CSD
Serves 12% of residents · Groundwater (wells) · Disinfectant not listed
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.