South Creek, WA tap water
About 27% of South Creek 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
Nitrite (NO₂)
Not detected (Low)
Not detected in testing, so any nitrite in your tank comes from the tank itself.
From EPA monitoring data (2014–2019).
Nitrate (NO₃)
1.8–18 ppm (Worth knowing)
Typical 18 ppm
Water changes can't take your tank's nitrate below this level.
From EPA monitoring data (2012–2019).
Water chemistry
General hardness
Area estimate32–79 ppm
Typical 52 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)
56–72 ppm
Typical 72 ppm
Moderate buffering. pH should stay fairly steady.
From EPA monitoring data (2019).
pH
Area estimate6.3–7.9
Typical 7.3
Most community fish do well here. Stable water matters more than the exact number.
Area estimate from nearby wells: USGS well samples in your county (2000–2016).
Total dissolved solids
Area estimate47–168 ppm
Typical 60 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 South Creek, WA
Ranch
Serves 14% of residents · Groundwater (wells) · Chlorine
Southcreek #1
Serves 7% of residents · Groundwater (wells) · Chlorine
Ryanwood
Serves 6% of residents · Groundwater (wells) · 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.