Big Pine, CA tap water
Supplied mostly by Rolling Green Utilities, Inc., plus 3 other utilities. Here's what the water means for your fish.
Disinfectant
Not confirmed
We couldn't confirm how your water is disinfected. US utilities use chlorine or chloramine, and chloramine doesn't gas off when water sits out.
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 EPA monitoring data (2013–2016).
Nitrate (NO₃)
Up to 3.4 ppm (Low)
Typical 2.2 ppm
Low, so water changes lower your tank's nitrate well.
From California Water Board lab results, measured before treatment; EPA monitoring data; Ladwp - Big Pine, which supplies Big Pine CSD, measured before treatment (2012–2026).
Copper at home taps
Up to 0.3 ppm (Worth knowing)
Typical 0.3 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 (2023–2024).
Water chemistry
General hardness
43–87 ppm
Typical 44 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; Ladwp - Big Pine, which supplies Big Pine CSD, measured before treatment (2023–2026).
Carbonate hardness (alkalinity)
46–92 ppm
Typical 49 ppm
Moderate buffering. pH should stay fairly steady.
From California Water Board lab results, measured before treatment; Ladwp - Big Pine, which supplies Big Pine CSD, measured before treatment (2023–2026).
pH
6.6–7.9
Typical 6.6
Most community fish do well here. Stable water matters more than the exact number.
From California Water Board lab results, measured before treatment; EPA monitoring data (2017–2026).
Total dissolved solids
85–148 ppm
Typical 89 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; Ladwp - Big Pine, which supplies Big Pine CSD, measured before treatment (2023–2026).
Who supplies Big Pine, CA
Rolling Green Utilities, Inc.
Serves 35% of residents · Groundwater (wells) · Disinfectant not listed
Big Pine Paiute Band
Serves 17% of residents · Groundwater (wells) · Chlorine
Big Pine CSD
Serves 15% of residents · Buys water from Ladwp - Big Pine · Chlorine
Ladwp - Big Pine
Serves 15% of residents · Groundwater (wells) · Disinfectant not listed
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.