Lake Shastina, CA tap water
Supplied by Lake Shastina C.S.D. Here's what its 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
Nitrate (NO₃)
1.2–1.8 ppm (Low)
Typical 1.2 ppm
Low, so water changes lower your tank's nitrate well.
From California Water Board lab results, measured before treatment (2023–2025).
Copper at home taps
0.34 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
120–144 ppm
Typical 131 ppm
Moderately soft to medium. Suits most community fish and plants.
From California Water Board lab results, measured before treatment (2023).
Carbonate hardness (alkalinity)
145–189 ppm
Typical 175 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From California Water Board lab results, measured before treatment (2023).
pH
7.2–7.6
Typical 7.3
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
190–245 ppm
Typical 216 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 (2023).
Who supplies Lake Shastina, CA
Lake Shastina C.S.D
Serves 72% 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.