Hope Valley, RI tap water
About 14% of Hope Valley is inside a utility's service area. Homes outside it likely use private wells, which no utility tests.
Disinfectant
Chlorine
Utility water here is treated with chlorine. It slowly gases off from standing water, and any water conditioner removes it. Private wells aren't treated by a utility, so there's no chlorine or chloramine unless a treatment system adds it.
Safety for fish and shrimp
Nitrate (NO₃)
0.9–1.6 ppm (Low)
Typical 1.2 ppm
Low, so water changes lower your tank's nitrate well.
From EPA monitoring data, measured before treatment; Town of Richmond, which supplies Town of Hopkinton, measured before treatment (2012–2019).
Water chemistry
General hardness
Area estimate35–51 ppm
Typical 50 ppm
Soft. Good for tetras, rasboras and most shrimp. Livebearers, snails and African cichlids prefer harder water.
Area estimate from nearby wells: USGS well samples in your county (2000–2019).
Carbonate hardness (alkalinity)
Area estimate20–36 ppm
Typical 24 ppm
Little buffering. pH can drop quickly between water changes, especially with CO₂ or an older tank.
Area estimate from nearby wells: USGS well samples in your county (2000–2019).
pH
Area estimate5.5–6
Typical 5.7
Acidic. Stable water matters more than the exact number.
Area estimate from nearby wells: USGS well samples in your county (2000–2023).
Total dissolved solids
Area estimate88–112 ppm
Typical 107 ppm
A rough measure of everything dissolved in the water. RO water reads near 0, so TDS is a quick way to compare waters.
Area estimate from nearby wells: USGS well samples in your county (2000–2019).
Who supplies Hope Valley, RI
Town of Richmond
Serves 10% of residents · Groundwater (wells) · Chlorine
Town of Hopkinton
Serves 6% of residents · Buys water from Town of Richmond · Chlorine
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.