Signal Mountain, TN tap water
Supplied mostly by Signal Mountain Water System, 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 figure0.8–3.4 ppm (Low)
Typical 1.1 ppm
Low, so water changes lower your tank's nitrate well.
From the utility that supplies yours: Tennessee American Water, which supplies Signal Mountain Water System; Hixson Utility District, which supplies Walden's Ridge U.D. (2014–2025).
Water chemistry
General hardness
Supplier's figure61–90 ppm
Typical 76 ppm
Moderately soft to medium. Suits most community fish and plants.
From the utility that supplies yours: Tennessee American Water, which supplies Signal Mountain Water System (2025).
Carbonate hardness (alkalinity)
Not published yet
We haven't found this number yet. A drop test kit gives you your exact reading.
pH
Supplier's figure7.1–7.6
Typical 7.3
Most community fish do well here. Stable water matters more than the exact number.
From the utility that supplies yours: Tennessee American Water, which supplies Signal Mountain Water System; Hixson Utility District, which supplies Walden's Ridge U.D. (2014–2025).
Total dissolved solids
Supplier's figure76–94 ppm
Typical 85 ppm
A rough measure of everything dissolved in the water. RO water reads near 0, so TDS is a quick way to compare waters.
From the utility that supplies yours: Tennessee American Water, which supplies Signal Mountain Water System (2025).
- Signal Mountain Water System and Walden's Ridge U.D. add phosphate to protect pipes. It can feed algae in tanks without much plant growth.
Who supplies Signal Mountain, TN
Signal Mountain Water System
Serves 85% of residents · Buys water from Tennessee American Water · Chlorine
Walden's Ridge U.D.
Serves 14% of residents · Buys water from Hixson Utility District · 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.