Scottsdale, AZ
Scottsdale, AZ Water Softeners: Hardness by Neighborhood Area
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Scottsdale's water hardness depends on how far north you live. The city's 2023 water quality report lists roughly 13 to 20 grains per gallon south of Indian School Road and 13 to 16 north of Chaparral Road. We'll match you with up to 5 licensed Scottsdale water softener companies for free quotes.
- 13 to 20 gpg depending on area
- About two-thirds of supply from CAP
- High-flow options for larger homes
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How hard is Scottsdale water? Hardness by area
| Area | Hardness (gpg) | Hardness (mg/L) |
|---|---|---|
| South of Indian School Road | 13 to 20 | 214 to 343 |
| Indian School Road to Chaparral Road | 13 to 17 | 216 to 285 |
| North of Chaparral Road | 13 to 16 | 230 to 288 |
Approximate levels as listed in the City of Scottsdale 2023 Water Quality Report. The gpg and mg/L ranges are the city's own rounded figures, so they don't convert exactly.
An older Scottsdale hard water fact sheet listed even higher ranges, up to 22 to 25 gpg south of Indian School Road. The numbers change as the city's source mix changes, which is why the most recent report and a test at your tap are the best guides. Either way, every part of Scottsdale is in the very hard range. Compare with other cities in our Phoenix water hardness guide.
Where does Scottsdale's water come from?
Most of Scottsdale's water is Colorado River water from the Central Arizona Project. The city's 2023 report shows CAP at 76 percent and SRP's Salt and Verde river water at 13 percent, with less than 10 percent from groundwater. About 90 percent of the city's drinking water is surface water.
The breakdown, from the 2023 report and the city's water supply page:
- CAP (Colorado River): 76 percent
- SRP (Salt and Verde rivers): 13 percent
- Groundwater: less than 10 percent, per the city's supply page
Scottsdale's fact sheet notes that hardness varies by source and treatment, and that treating city water solely to remove hardness would not be cost effective. In other words, softening is left to homeowners who want it.
The city's hard water fact sheet offers practical tips: run white vinegar through the coffee maker and the dishwasher rinse cycle every few months, use a rinse aid, soak shower heads and faucet aerators in vinegar, wipe fixtures with lemon juice and set the water heater to 120 to 125 degrees. Those help, but they treat the symptoms. A softener addresses the cause at the main line.
Sizing water treatment for Scottsdale homes
Scottsdale has a wide range of homes, from established neighborhoods in the south to larger custom and luxury homes farther north. Larger homes with more bathrooms often need higher-flow systems, and some owners want premium setups with filtration and RO. Things a pro will look at:
- Peak water flow for larger homes, which affects softener and whole-house filtration sizing
- Whether a softener loop exists or new plumbing is needed
- Where to place equipment to meet HOA or community guidelines
- Separate treatment for pools, irrigation and outdoor taps, which usually stay unsoftened
How much does a water softener cost in Scottsdale?
Two things tend to raise Scottsdale quotes: hardness of 13 to 20 gpg south of Indian School Road, and larger homes with many bathrooms that need more flow. Angi lists dual-tank softeners, which keep soft water flowing during regeneration, at $1,100 to $5,500 in the Phoenix area.
Many Scottsdale buyers also add carbon filtration or RO, so ask for each piece to be priced separately. The water softener cost guide covers salt, maintenance and add-ons.
Larger home or very hard water? Get free quotes from licensed Scottsdale companies.
Get My Free QuotesRO, filtration and nearby areas
Many Scottsdale homeowners add an under-sink reverse osmosis system for drinking water or pair a water softener installation with carbon filtration. South Scottsdale borders Tempe, which relies mostly on SRP rather than CAP water: compare water softeners in Tempe and water softeners in Phoenix.
Weighing a softener against a salt-free conditioner, a filter or RO? Our water treatment decision matrix compares them side by side.
Services for Scottsdale homeowners
Scottsdale water softener FAQs
How hard is Scottsdale water?
Scottsdale's 2023 water quality report lists approximate hardness of 13 to 20 grains per gallon south of Indian School Road, 13 to 17 between Indian School and Chaparral, and 13 to 16 north of Chaparral Road. All of these are in the very hard range.
Why is south Scottsdale water harder than north Scottsdale?
Scottsdale says hardness varies by water source and treatment process. Different parts of the city are served by different plants and blends of CAP, SRP and groundwater. The city's published ranges have been highest south of Indian School Road in both its 2023 report and its older fact sheet.
Does Scottsdale soften its water?
No. The city's hard water fact sheet says additional treatment solely to address hardness would not be cost effective. The city offers tips like using vinegar for cleaning and rinse aid in dishwashers. Homeowners who want soft water install their own systems.
What size water softener does a large Scottsdale home need?
It depends on hardness, how many people live there and peak water flow. Larger homes with many bathrooms may need a high-flow or dual-tank system so pressure stays strong when several fixtures run at once. A pro will calculate capacity from your test and household size.
Why are Scottsdale's newer hardness numbers lower than older ones?
Scottsdale's older hard water fact sheet listed 22 to 25 gpg south of Indian School Road, while the 2023 report lists about 13 to 20. The city says hardness varies with water source and treatment, and its supply mix has changed over time. Use the newest report as your guide, and test your tap before setting a softener.
Where does Scottsdale get its water?
Mostly from the Colorado River through the Central Arizona Project. The city's water supply page says about two-thirds comes from CAP, with SRP surface water making up much of the rest and groundwater under 10 percent. The 2023 report shows CAP at 76 percent and SRP at 13 percent.
Neighborhoods and ZIP codes we cover in Scottsdale
Homeowners in every part of Scottsdale can request a free water softener quote match. Enter your ZIP code on the form and we match you with a licensed local company that serves your area.
Scottsdale neighborhoods and communities
- Old Town Scottsdale
- McCormick Ranch
- Gainey Ranch
- South Scottsdale
- DC Ranch
- Cactus Corridor
- Pima Acres
- Grayhawk
- Troon North
- Troon Village
- Silverleaf
- Desert Mountain
- Desert Highlands
- Estancia
- Legend Trail
- Mirabel
- Terravita
- Whisper Rock
- Ancala
Scottsdale ZIP codes
85250 · 85251 · 85254 · 85255 · 85256 · 85257 · 85258 · 85259 · 85260 · 85262 · 85266
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