Richgrove, CA tap water
Supplied by Richgrove Community Services District. 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)
10–56 ppm (High)
Typical 56 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 (2023–2026).
Water chemistry
General hardness
Area estimate33–352 ppm
Typical 158 ppm
Moderately hard. Great for livebearers, and most community fish adapt.
Area estimate from nearby wells: USGS well samples in your county (2001–2023).
Carbonate hardness (alkalinity)
65 ppm
Moderate buffering. pH should stay fairly steady.
From California Water Board lab results, measured before treatment (2025).
pH
8
Most community fish do well here. Stable water matters more than the exact number.
From California Water Board lab results, measured before treatment (2025).
Total dissolved solids
336 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 (2025).
Who supplies Richgrove, CA
Richgrove Community Services District
Serves all 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.