Raleigh Hills, OR tap water
Supplied mostly by Raleigh Water District, plus 1 other utility. Here's what the water means for your fish.
Disinfectant
Chloramine
Your water is treated with chloramine. Unlike chlorine, it doesn't gas off when water sits out, and many pitcher and fridge filters aren't rated to remove it. Conditioners that list chloramine on the label break it apart, which frees a little ammonia. Some utilities switch to plain chlorine for a few weeks a year.
Safety for fish and shrimp
Nitrate (NO₃)
Supplier's figureUp to 0.5 ppm (Low)
Typical 0.3 ppm
Low, so water changes lower your tank's nitrate well.
From the utility that supplies yours: Portland Water Bureau, which supplies Raleigh Water District; Portland Water Bureau, which supplies West Slope Water District (2025).
Water chemistry
General hardness
Supplier's figure7–80 ppm
Typical 9 ppm
Soft. Good for tetras, rasboras and most shrimp. Livebearers, snails and African cichlids prefer harder water.
From the utility that supplies yours: Portland Water Bureau, which supplies Raleigh Water District; Portland Water Bureau, which supplies West Slope Water District (2025).
Carbonate hardness (alkalinity)
Supplier's figure25 ppm
Little buffering. pH can drop quickly between water changes, especially with CO₂ or an older tank.
From the utility that supplies yours: Portland Water Bureau, which supplies Raleigh Water District; Portland Water Bureau, which supplies West Slope Water District.
pH
Supplier's figure8–9
Typical 8.5
Alkaline. Many utilities raise pH to protect pipes. Stability matters more than the exact number.
From the utility that supplies yours: Portland Water Bureau, which supplies Raleigh Water District; Portland Water Bureau, which supplies West Slope Water District (2025).
Who supplies Raleigh Hills, OR
Raleigh Water District
Serves 51% of residents · Buys water from Portland Water Bureau · Chloramine
West Slope Water District
Serves 32% of residents · Buys water from Portland Water Bureau · Chloramine
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.