Antelope, CA tap water
Supplied mostly by Cal Am - Antelope, 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
Nitrite (NO₂)
Not detected (Low)
Not detected in testing, so any nitrite in your tank comes from the tank itself.
From California Water Board lab results (2025).
Nitrate (NO₃)
Up to 13 ppm (Low)
Typical 4.8 ppm
Low, so water changes lower your tank's nitrate well.
From California Water Board lab results; City of Sacramento Main and San Juan Water District, which supplies Sacramento Suburban Water District (2023–2026).
Copper at home taps
0.06–0.15 ppm (Worth knowing)
Typical 0.15 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 (2025).
Water chemistry
General hardness
15–154 ppm
Typical 82 ppm
Moderately soft to medium. Suits most community fish and plants.
From California Water Board lab results; City of Sacramento Main and San Juan Water District, which supplies Sacramento Suburban Water District (2023–2025).
Carbonate hardness (alkalinity)
14–150 ppm
Typical 93 ppm
Moderate buffering. pH should stay fairly steady.
From California Water Board lab results; City of Sacramento Main and San Juan Water District, which supplies Sacramento Suburban Water District (2023–2025).
pH
7.3–8.4
Typical 7.5
Most community fish do well here. Stable water matters more than the exact number.
From California Water Board lab results; City of Sacramento Main and San Juan Water District, which supplies Sacramento Suburban Water District (2023–2025).
Total dissolved solids
31–280 ppm
Typical 215 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; City of Sacramento Main and San Juan Water District, which supplies Sacramento Suburban Water District (2023–2025).
- Cal Am - Antelope and Sacramento Suburban Water District soften their water at the plant, so it may be softer than the local groundwater.
Who supplies Antelope, CA
Cal Am - Antelope
Serves 74% of residents · Buys water from Sacramento Suburban Water District · Chlorine
Sacramento Suburban Water District
Serves 21% of residents · Buys water from City of Sacramento Main · 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.