West Park, CA tap water
Supplied by Fcsa 39 - A and B. 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)
Supplier's figureUp to 58 ppm (Worth knowing)
Typical 22 ppm
High for tap water. Water changes can't take your tank's nitrate below this level.
From the utility that supplies yours: City of Fresno, which supplies Fcsa 39 - A and B (2024).
Copper at home taps
0.01 ppm (Low)
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 figure65–190 ppm
Typical 89 ppm
Moderately soft to medium. Suits most community fish and plants.
From the utility that supplies yours: City of Fresno, which supplies Fcsa 39 - A and B (2024).
Carbonate hardness (alkalinity)
Supplier's figure23 ppm
Little buffering. pH can drop quickly between water changes, especially with CO₂ or an older tank.
From the utility that supplies yours: City of Fresno, which supplies Fcsa 39 - A and B (2026).
pH
Supplier's figure7.9–8.6
Typical 8.2
Alkaline. Many utilities raise pH to protect pipes. Stability matters more than the exact number.
From the utility that supplies yours: City of Fresno, which supplies Fcsa 39 - A and B (2012–2017).
Total dissolved solids
Supplier's figure130–340 ppm
Typical 176 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 Fresno, which supplies Fcsa 39 - A and B (2024).
- Fcsa 39 - A and B adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies West Park, CA
Fcsa 39 - A and B
Serves 57% of residents · Buys water from City of Fresno · 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.