Wasco, CA tap water
Supplied mostly by City of Wasco, 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 31 ppm (High)
Typical 25 ppm
High for tap water. Water changes can't take your tank's nitrate below this level.
From California Water Board lab results, measured before treatment; California Water Board lab results (2023–2026).
Copper at home taps
Up to 0.01 ppm (Low)
Typical 0.01 ppm
Low. Water that sits in household pipes overnight can carry more than this.
From California Water Board lab results (2023–2024).
Water chemistry
General hardness
4–112 ppm
Typical 56 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 (2023–2026).
Carbonate hardness (alkalinity)
20–78 ppm
Typical 61 ppm
Moderate buffering. pH should stay fairly steady.
From California Water Board lab results, measured before treatment (2023–2025).
pH
7.4–9.8
Typical 7.7
Most community fish do well here. Stable water matters more than the exact number.
From California Water Board lab results, measured before treatment (2023–2025).
Total dissolved solids
110–665 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).
Who supplies Wasco, CA
City of Wasco
Serves 94% of residents · Groundwater (wells) · Chlorine
Wasco St. Prison Reception Ctr
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.
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Compiled by Shoal & Stem from public records. Free to cite with a link.