Fair Oaks, GA tap water
Supplied mostly by Cobb County Water System (CCWS), plus 2 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
Nitrate (NO₃)
1.1–4.9 ppm (Low)
Typical 3 ppm
Low, so water changes lower your tank's nitrate well.
From Cobb County Water System (CCWS)'s 2024 water quality report; Cobb County, which supplies Marietta Board of Lights and Water.
Chlorine or chloramine at the tap
0–2 ppm
Typical 2 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: Cobb County Water System (CCWS)'s 2024 water quality report.
Water chemistry
General hardness
31–33 ppm
Typical 32 ppm
Soft. Good for tetras, rasboras and most shrimp. Livebearers, snails and African cichlids prefer harder water.
From Cobb County Water System (CCWS)'s website; Cobb County, which supplies Marietta Board of Lights and Water.
Carbonate hardness (alkalinity)
22–26 ppm
Typical 24 ppm
Little buffering. pH can drop quickly between water changes, especially with CO₂ or an older tank.
From Cobb County Water System (CCWS)'s website; Cobb County, which supplies Marietta Board of Lights and Water.
pH
Not published yet
We haven't found this number yet. A drop test kit gives you your exact reading.
Who supplies Fair Oaks, GA
- 2024 water quality report
Cobb County Water System (CCWS)
Serves 67% of residents · Buys water from Cobb Co.-Marietta Water Auth. · Chlorine
Smyrna
Serves 28% of residents · Buys water from Cobb Co.-Marietta Water Auth. · Chlorine
Marietta Board of Lights and Water
Serves 6% of residents · Buys water from Cobb Co.-Marietta Water Auth. · 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.