Shoal & Stem

Anderson, CA tap water

Supplied by City of Anderson. Here's what its water means for your fish.

Disinfectant

Chlorine

Your water is treated with chlorine. It slowly gases off from standing water, and any water conditioner removes it.

Safety for fish and shrimp

Nitrate (NO₃)

3–8.7 ppm (Low)

Typical 6.3 ppm

Water changes can't take your tank's nitrate below this level.

From California Water Board lab results, measured before treatment (2023–2026).

Copper at home taps

0.23 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 (2025).

Water chemistry

General hardness

Estimate

66–104 ppm

Typical 94 ppm

Moderately soft to medium. Suits most community fish and plants.

Estimated from City of Anderson's calcium and magnesium readings, measured before treatment (2024–2026).

Carbonate hardness (alkalinity)

73–103 ppm

Typical 90 ppm

Moderate buffering. pH should stay fairly steady.

From California Water Board lab results, measured before treatment (2024–2025).

pH

6.9–7.4

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 (2024–2025).

Total dissolved solids

123–172 ppm

Typical 149 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 (2023–2025).

Who supplies Anderson, CA

  • City of Anderson

    Serves 99% 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.

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.

More California cities

Look up another city