Forestville, CA tap water
Supplied mostly by Forestville Water District, 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 figureNot detected (Low)
Not detected in testing, so water changes lower your tank's nitrate well.
From the utility that supplies yours: Sonoma County Water Agency and Russian River County Water District, which supplies Forestville Water District, measured before treatment; California Water Board lab results, measured before treatment (2023–2025).
Copper at home taps
0.06–0.33 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 (2024).
Water chemistry
General hardness
Supplier's figure38–150 ppm
Typical 128 ppm
Moderately soft to medium. Suits most community fish and plants.
From the utility that supplies yours: Sonoma County Water Agency and Russian River County Water District, which supplies Forestville Water District, measured before treatment; California Water Board lab results, measured before treatment (2023–2025).
Carbonate hardness (alkalinity)
Supplier's figure93–120 ppm
Typical 115 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From the utility that supplies yours: Sonoma County Water Agency and Russian River County Water District, which supplies Forestville Water District, measured before treatment; California Water Board lab results, measured before treatment (2023–2025).
pH
Supplier's figure7–8.3
Typical 7.2
Most community fish do well here. Stable water matters more than the exact number.
From the utility that supplies yours: Sonoma County Water Agency and Russian River County Water District, which supplies Forestville Water District, measured before treatment; California Water Board lab results, measured before treatment (2023–2025).
Total dissolved solids
Supplier's figure130–180 ppm
Typical 153 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: Sonoma County Water Agency and Russian River County Water District, which supplies Forestville Water District, measured before treatment; California Water Board lab results, measured before treatment (2023–2025).
- Forestville Water District and Russian River County Water District add phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Forestville, CA
Forestville Water District
Serves 66% of residents · Buys water from Sonoma County Water Agency · Chlorine
Russian River County Water District
Serves 20% 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.