Monroe, OH tap water
Supplied mostly by Monroe City PWS, plus 1 other utility. Here's what the water means for your fish.
Disinfectant
Chlorine or chloramine
Utilities here use chlorine or chloramine, depending on which one serves your address. Chlorine slowly gases off from standing water; chloramine doesn't.
Safety for fish and shrimp
Ammonia (with conditioner)
Estimate0.19–0.97 ppm (Low)
Typical 0.19 ppm
This is what a conditioner frees when it breaks the chloramine apart. A cycled filter clears it within a day.
Estimated from the chloramine level Butler Co. Water District 2 PWS reports.
Nitrate (NO₃)
Supplier's figureUp to 5.5 ppm (Low)
Typical 3.6 ppm
Low, so water changes lower your tank's nitrate well.
From the utility that supplies yours: Hamilton Public Water System and Cincinnati Public Water System, which supplies Monroe City PWS; Hamilton Public Water System and Cincinnati Public Water System, which supplies Butler Co. Water District 2 PWS (2012–2025).
Chlorine or chloramine at the tap
0.8–4 ppm
Typical 0.8 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: Butler Co. Water District 2 PWS's water quality report.
Water chemistry
General hardness
Supplier's figure131 ppm
Moderately soft to medium. Suits most community fish and plants.
From the utility that supplies yours: Butler Co. Water District 2 PWS, which supplies Monroe City PWS; Butler Co. Water District 2 PWS's water quality report.
Carbonate hardness (alkalinity)
Supplier's figure70 ppm
Moderate buffering. pH should stay fairly steady.
From the utility that supplies yours: Butler Co. Water District 2 PWS, which supplies Monroe City PWS; Butler Co. Water District 2 PWS's water quality report.
pH
Supplier's figure7–10.5
Typical 9
Alkaline. Many utilities raise pH to protect pipes. Stability matters more than the exact number.
From the utility that supplies yours: Butler Co. Water District 2 PWS, which supplies Monroe City PWS; Butler Co. Water District 2 PWS's water quality report.
- Monroe City PWS and Butler Co. Water District 2 PWS add phosphate to protect pipes. It can feed algae in tanks without much plant growth.
- Monroe City PWS and Butler Co. Water District 2 PWS soften their water at the plant, so it may be softer than the local groundwater.
Who supplies Monroe, OH
Monroe City PWS
Serves 85% of residents · Buys water from Butler Co. Water District 2 PWS · Chlorine
- Water quality report
Butler Co. Water District 2 PWS
Serves 13% of residents · Buys water from Hamilton Public Water System · 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.
Tap water lookup covers US cities only for now. Want to know why it matters? Read our story on tap water.
Compiled by Shoal & Stem from public records. Free to cite with a link.