Nipomo, CA tap water
Supplied mostly by Nipomo Comm Services Dist, 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)
Supplier's figure0.2–49 ppm (Low)
Typical 0.4 ppm
Low, so water changes lower your tank's nitrate well.
From the utility that supplies yours: City of Santa Maria Utilities Department, which supplies Nipomo Comm Services Dist; California Water Board lab results (2023–2026).
Copper at home taps
0.06–0.17 ppm (Low)
Typical 0.06 ppm
Low. Water that sits in household pipes overnight can carry more than this.
From California Water Board lab results (2023–2026).
Water chemistry
General hardness
Supplier's figure57–1001 ppm
Typical 831 ppm
Hard. Ideal for livebearers and African cichlids. Soft-water species may struggle to breed.
From the utility that supplies yours: City of Santa Maria Utilities Department, which supplies Nipomo Comm Services Dist; California Water Board lab results, measured before treatment (2023–2026).
Carbonate hardness (alkalinity)
Supplier's figure30–220 ppm
Typical 37 ppm
Moderate buffering. pH should stay fairly steady.
From the utility that supplies yours: City of Santa Maria Utilities Department, which supplies Nipomo Comm Services Dist; California Water Board lab results, measured before treatment (2023–2026).
pH
Supplier's figure7.5–8
Typical 7.7
Most community fish do well here. Stable water matters more than the exact number.
From the utility that supplies yours: City of Santa Maria Utilities Department, which supplies Nipomo Comm Services Dist; EPA monitoring data (2012–2024).
Total dissolved solids
Supplier's figure235–710 ppm
Typical 630 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 the utility that supplies yours: City of Santa Maria Utilities Department, which supplies Nipomo Comm Services Dist; California Water Board lab results, measured before treatment (2023–2026).
Who supplies Nipomo, CA
Nipomo Comm Services Dist
Serves 70% of residents · Buys water from City of Santa Maria Utilities Department · Chlorine
Golden State Water Company - Nipomo
Serves 28% of residents · Buys water from Nipomo Comm Services Dist · 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.