Ogden Dunes, IN tap water
Supplied mostly by Ogden Dunes Water, 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 about 0.55 ppm of ammonia here. Some utilities switch to plain chlorine for a few weeks a year.
Safety for fish and shrimp
Ammonia (with conditioner)
Estimate0.12–0.68 ppm (Worth knowing)
Typical 0.55 ppm
This is what a conditioner frees when it breaks the chloramine apart. A cycled filter clears it within a day; a big water change in a new or very small tank adds more of it at once. Some conditioners also bind ammonia for a day or so.
Estimated from the chloramine level Indiana American Water - Northwest Indiana Operations reports (2025).
Nitrite (NO₂)
Not detected (Low)
Not detected in testing, so any nitrite in your tank comes from the tank itself.
From EPA monitoring data (2013–2019).
Nitrate (NO₃)
Supplier's figure1.6–1.7 ppm (Low)
Typical 1.6 ppm
Low, so water changes lower your tank's nitrate well.
From the utility that supplies yours: Indiana American Water - Northwest, which supplies Ogden Dunes Water; EPA monitoring data (2012–2019).
Copper at home taps (first draw)
0.06–0.13 ppm (Low)
The 90th percentile of first-draw samples from homes: water that sat in household pipes for at least six hours.
Low. Water that sits in household pipes overnight can carry more than this.
Published by your utility: Indiana American Water - Northwest Indiana Operations' 2025 water quality report.
Chlorine or chloramine at the tap
0.5–2.8 ppm
Typical 2.2 ppm
At tap levels, chlorine and chloramine are toxic to fish, shrimp and the bacteria in a filter. Water conditioners are made for this range.
Published by your utility: Indiana American Water - Northwest Indiana Operations' 2025 water quality report.
Water chemistry
General hardness
Supplier's figure130–150 ppm
Typical 140 ppm
Moderately soft to medium. Suits most community fish and plants.
From the utility that supplies yours: Indiana American Water - Northwest, which supplies Ogden Dunes Water; Indiana American Water - Northwest Indiana Operations' 2025 water quality report.
Carbonate hardness (alkalinity)
Supplier's figure109–110 ppm
Typical 109 ppm
Strong buffering. pH stays steady and hard to lower without RO water.
From the utility that supplies yours: Indiana American Water - Northwest, which supplies Ogden Dunes Water, measured before treatment; EPA monitoring data, measured before treatment (2012–2019).
pH
Supplier's figure7.4–8.8
Typical 8.1
Alkaline. Many utilities raise pH to protect pipes. Stability matters more than the exact number.
From the utility that supplies yours: Indiana American Water - Northwest, which supplies Ogden Dunes Water; Indiana American Water - Northwest Indiana Operations' 2025 water quality report.
- Ogden Dunes Water and Indiana American Water - Northwest Indiana Operations add phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Ogden Dunes, IN
Ogden Dunes Water
Serves 93% of residents · Buys water from Indiana American Water - Northwest · Chloramine
- 2025 water quality report
Indiana American Water - Northwest Indiana Operations
Serves 10% of residents · Lake or river water · 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.