Mill Creek East, WA tap water
Supplied mostly by Alderwood Water & Wastewater District, plus 1 other utility. 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
Nitrate (NO₃)
Supplier's figure0.4 ppm (Low)
Low, so water changes lower your tank's nitrate well.
From the utility that supplies yours: City of Everett Public Works Dept., which supplies Alderwood Water & Wastewater District; City of Everett Public Works Dept., which supplies Silver Lake Water & Sewer District (2012–2018).
Copper at home taps (first draw)
Not detected (Low)
The 90th percentile of first-draw samples from homes: water that sat in household pipes for at least six hours.
Not detected in testing. Water that sits in household pipes overnight can still pick some up.
Published by your utility: Alderwood Water & Wastewater District's 2025 water quality report.
Chlorine or chloramine at the tap
0.2–1.4 ppm
Typical 0.7 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: Alderwood Water & Wastewater District's 2025 water quality report.
Water chemistry
General hardness
10–16 ppm
Typical 13 ppm
Soft. Good for tetras, rasboras and most shrimp. Livebearers, snails and African cichlids prefer harder water.
From Alderwood Water & Wastewater District's 2025 water quality report; Alderwood Water District, which supplies Silver Lake Water & Sewer District.
Carbonate hardness (alkalinity)
13–26 ppm
Typical 17 ppm
Little buffering. pH can drop quickly between water changes, especially with CO₂ or an older tank.
From Alderwood Water & Wastewater District's 2025 water quality report; City of Everett Public Works Dept. and Alderwood Water District, which supplies Silver Lake Water & Sewer District (2012–2025).
pH
7.1–9.1
Typical 7.6
Most community fish do well here. Stable water matters more than the exact number.
From Alderwood Water & Wastewater District's 2025 water quality report; City of Everett Public Works Dept. and Alderwood Water District, which supplies Silver Lake Water & Sewer District (2015–2025).
Who supplies Mill Creek East, WA
- 2025 water quality report
Alderwood Water & Wastewater District
Serves 69% of residents · Buys water from City of Everett Public Works Dept. · Chlorine
Silver Lake Water & Sewer District
Serves 23% of residents · Buys water from City of Everett Public Works Dept. · 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.
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Compiled by Shoal & Stem from public records. Free to cite with a link.