Shoal & Stem

Finley, WA tap water

About 25% of Finley is inside a utility's service area. Homes outside it likely use private wells, which no utility tests.

Disinfectant

Not confirmed

We couldn't confirm how utility water here is disinfected. US utilities use chlorine or chloramine, and chloramine doesn't gas off when water sits out. 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

Nitrite (NO₂)

Not detected (Low)

Not detected in testing, so any nitrite in your tank comes from the tank itself.

From EPA monitoring data (2016–2019).

Nitrate (NO₃)

Up to 31 ppm (Worth knowing)

Typical 24 ppm

High for tap water. Water changes can't take your tank's nitrate below this level.

From EPA monitoring data (2012–2019).

Water chemistry

General hardness

Area estimate

5–403 ppm

Typical 44 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 (2000–2016).

Carbonate hardness (alkalinity)

Area estimate

153–252 ppm

Typical 183 ppm

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

Area estimate from nearby wells: USGS well samples in your county (2000–2016).

pH

Area estimate

7.5–10

Typical 8.4

Alkaline. Stability matters more than the exact number.

Area estimate from nearby wells: USGS well samples in your county (2000–2016).

Total dissolved solids

Area estimate

149–570 ppm

Typical 158 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 (2000–2016).

Who supplies Finley, WA

  • Columbia Place LLC

    Serves 6% of residents · Groundwater (wells) · Disinfectant not listed

  • Homestead Manufactured Housing

    Serves 6% of residents · Groundwater (wells) · Chlorine

  • Good Neighbors Water Assn

    Serves 6% 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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