Shoal & Stem

Tonto Basin, AZ tap water

Supplied mostly by Tonto Basin Water - Lr Gardens West, plus 3 other utilities. Here's what the water means for your fish.

Disinfectant

Chlorine

Your water is treated with chlorine. It slowly gases off from standing water, and any water conditioner removes it.

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 (2012–2019).

Nitrate (NO₃)

0.6–1.9 ppm (Low)

Typical 1.4 ppm

Low, so water changes lower your tank's nitrate well.

From EPA monitoring data (2012–2019).

Water chemistry

General hardness

Area estimate

217–1401 ppm

Typical 1191 ppm

Hard. Ideal for livebearers and African cichlids. Soft-water species may struggle to breed.

Area estimate from nearby wells: USGS well samples in your county (2000–2013).

Carbonate hardness (alkalinity)

288 ppm

Strong buffering. pH stays steady and hard to lower without RO water.

From EPA monitoring data (2019).

pH

Area estimate

4.3–7

Typical 6.3

Acidic. Stable water matters more than the exact number.

Area estimate from nearby wells: USGS well samples in your county (2000–2013).

Total dissolved solids

Area estimate

227–1011 ppm

Typical 876 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 (2000–2013).

Who supplies Tonto Basin, AZ

  • Tonto Basin Water - Lr Gardens West

    Serves 40% of residents · Groundwater (wells) · Chlorine

  • North Bay Estates

    Serves 10% of residents · Groundwater (wells) · Chlorine

  • Lake Roosevelt Gardens East

    Serves 8% of residents · Groundwater (wells) · Chlorine

  • Arroyo Water Company

    Serves 8% of residents · Groundwater (wells) · Disinfectant not listed

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.

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