Castle Pines, CO tap water
Supplied by Castle Pines North Md. Here's what its 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
Nitrite (NO₂)
Not detected (Low)
Not detected in testing, so any nitrite in your tank comes from the tank itself.
From EPA monitoring data (2012).
Nitrate (NO₃)
Not detected (Low)
Not detected in testing, so water changes lower your tank's nitrate well.
From EPA monitoring data (2012–2019).
Water chemistry
General hardness
Supplier's figure188–293 ppm
Typical 206 ppm
Moderately hard. Great for livebearers, and most community fish adapt.
From the utility that supplies yours: Highlands Ranch WSD, which supplies Castle Pines North Md.
Carbonate hardness (alkalinity)
Not published yet
We haven't found this number yet. A drop test kit gives you your exact reading.
pH
Not published yet
We haven't found this number yet. A drop test kit gives you your exact reading.
Total dissolved solids
Supplier's figure97–645 ppm
Typical 326 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: Highlands Ranch WSD, which supplies Castle Pines North Md (2024).
- Castle Pines North Md adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
- Castle Pines North Md softens its water at the plant, so it may be softer than the local groundwater.
Who supplies Castle Pines, CO
Castle Pines North Md
Serves 82% of residents · Buys water from Highlands Ranch WSD · 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.