Talmage, CA tap water
Supplied mostly by Rogina Water Company Inc., plus 1 other utility. Here's what the 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)
Up to 4.2 ppm (Low)
Typically not detected
Not detected in testing, so water changes lower your tank's nitrate well.
From California Water Board lab results; California Water Board lab results, measured before treatment (2023–2026).
Copper at home taps
0.09–0.47 ppm (Worth knowing)
Typical 0.47 ppm
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 (2024).
Water chemistry
General hardness
100–174 ppm
Typical 119 ppm
Moderately soft to medium. Suits most community fish and plants.
From California Water Board lab results, measured before treatment (2023–2026).
Carbonate hardness (alkalinity)
64–170 ppm
Typical 130 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From California Water Board lab results, measured before treatment (2023–2026).
pH
7–7.7
Typical 7.2
Most community fish do well here. Stable water matters more than the exact number.
From California Water Board lab results, measured before treatment (2023–2026).
Total dissolved solids
150–230 ppm
Typical 180 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 (2023–2026).
- Rogina Water Company Inc. adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Talmage, CA
Rogina Water Company Inc.
Serves 80% of residents · Groundwater (wells) · Chlorine
City of 10,000 Buddhas
Serves 8% 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.