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Frequently Asked Questions for Water in Torrance, California
Is Torrance tap water safe to drink?
Yes, Torrance’s tap water meets all state and federal safety standards. However, some contaminants have been detected, such as arsenic (up to 4.6 ppb), chromium (up to 1.74 ppb), barium (up to 150 ppb), TTHMs (up to 48.4 µg/L), and uranium (up to 3.0 pCi/L). While these levels comply with regulatory guidelines, they may exceed the stricter recommendations of the Environmental Working Group (EWG).
Is Torrance’s water hard?
Yes, Torrance’s water is classified as moderately hard to hard, with an average hardness of 427 ppm (25 grains per gallon). Hard water can lead to limescale buildup, dry skin, and reduced appliance efficiency.
Does Torrance’s water contain PFAS (“Forever Chemicals”)?
Recent testing did not detect PFAS compounds such as PFOA or PFOS above current reporting limits. For added peace of mind, many residents choose reverse osmosis or advanced carbon filtration systems to further reduce potential contaminants.
Does Torrance add fluoride to its water?
Yes, fluoride is added to Torrance’s water at levels averaging 0.61–1.1 ppm, meeting both state and federal guidelines for preventing tooth decay.
What other contaminants are in Torrance’s water?
The 2024 water quality report identified trace levels of the following:
- Arsenic (up to 4.6 ppb)
- Barium (up to 150 ppb)
- TTHMs (up to 48.4 µg/L)
- HAA5 (up to 26 µg/L)
- Uranium (up to 3.0 pCi/L)
- Chromium (up to 1.74 ppb)
- Aluminum (up to 210 ppb)
- Nitrate (up to 2.8 ppm)
- Total Dissolved Solids (up to 680 ppm)
Where does Torrance get its water?
Torrance sources about 75% of its water from the Metropolitan Water District of Southern California (MWD), which imports surface water from the Colorado River through the Colorado River Aqueduct. The remainder comes from local groundwater wells.
What is the pH level of Torrance water?
The pH of Torrance’s water ranges from 6.8 to 8.5, which is considered slightly acidic to slightly alkaline depending on the source.
Should I use a water filter or softener in Torrance?
Yes, due to hard water and trace contaminants, many residents benefit from whole-house water filters, reverse osmosis systems, and water softeners to improve water quality, taste, and protect appliances.
Does Torrance water have a high total dissolved solids (TDS) level?
Yes, Torrance’s TDS levels range from 230–680 ppm, which is within California’s secondary standards but can affect taste and clarity. Reverse osmosis systems are recommended for reducing TDS.
Where can I get a local water quality report?
You can access the most recent Torrance Water Quality Report from the City of Torrance here.
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Why Do Torrance
Homeowners LOVE Us?
We just installed our Culligan water Softener. The sales person was no pressure, the installer was very professional. No more itching skin and cleaner clothes and better showers. No foul drinking water taste.
Culligan Water service is great. The person who installed the water softener for us are very professional, friendly and knowledgeable.
We have very hard well water in my neighborhood and this does the trick no more green crusty faucets. The customer services are friendly and quick to respond. Highly recommend.
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