Roseland, NJ tap water
Supplied by Roseland Water Dept. 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
Nitrate (NO₃)
Supplier's figure7.6–15 ppm (Low)
Typical 8.5 ppm
Water changes can't take your tank's nitrate below this level.
From the utility that supplies yours: Essex Fells Water Dept, which supplies Roseland Water Dept (2012–2019).
Water chemistry
General hardness
Supplier's figure52–342 ppm
Typical 197 ppm
Moderately hard. Great for livebearers, and most community fish adapt.
From the utility that supplies yours: New Jersey American Water – Short Hills, which supplies Roseland Water Dept (2025).
Carbonate hardness (alkalinity)
Supplier's figure62–125 ppm
Typical 109 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From the utility that supplies yours: Essex Fells Water Dept, which supplies Roseland Water Dept (2012–2018).
pH
Supplier's figure6.2–7.5
Typical 7.4
Most community fish do well here. Stable water matters more than the exact number.
From the utility that supplies yours: Essex Fells Water Dept, which supplies Roseland Water Dept (2012–2018).
- Roseland Water Dept adds phosphate to protect pipes. It can feed algae in tanks without much plant growth.
- Roseland Water Dept softens its water at the plant, so it may be softer than the local groundwater.
Who supplies Roseland, NJ
Roseland Water Dept
Serves all residents · Buys water from Essex Fells Water Dept · 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.