Tucson’s water supply has a story worth knowing. The city draws from a blend of Colorado River water, delivered via the Central Arizona Project (CAP), and groundwater pulled from local aquifers beneath the Sonoran Desert. That combination means what comes out of your tap in the Foothills looks different from what’s running through a home in Marana or on the south side. And because Colorado River water carries a higher mineral load than the groundwater it’s blended with, the quality can shift over time.
Most Tucson homeowners don’t think about any of this until something goes wrong: a water heater that fails early, fixtures caked in scale, dishes that never quite come clean. A free water quality test from Rite Way gives you the information before that point. Tucson’s most recent Consumer Confidence Report showed arsenic counts up to 8.8 ppb and uranium counts up to 16 ppb. Both are within legal limits but not ideal. One of our certified water specialists will come to your home, test your water on the spot, and walk you through your results in plain language.
No lab wait. No obligation. Just answers.
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Valid Until: 12/31/2024
Our standard test is performed in your home by a Rite Way water specialist. No samples get mailed anywhere and there’s no waiting on a lab. You walk away knowing your numbers the same day.
Tucson’s water is classified as hard. That hardness comes from two places: the limestone and caliche-heavy geology that groundwater travels through on its way to local aquifers, and the mineral content of the Colorado River water blended into the city’s supply. The result is water that works against your home quietly, through scale buildup, appliance wear, and everyday frustration.
Our test measures your home’s exact grains-per-gallon (GPG) reading on the spot. Water quality can vary from one neighborhood to the next, and a city-wide average won’t tell you what’s actually running through your pipes.
Hard water isn’t a health risk, but it does put steady wear on everything it touches. Common signs you’re dealing with it:
Knowing your exact GPG reading is the first step in deciding whether a water softener or conditioning system makes sense for your home.
TDS measures everything dissolved in your water that isn’t water itself: minerals, salts, and compounds picked up along the way from source to tap. In Tucson, this reading carries real weight.
Tucson Water monitors TDS continuously across its distribution system, and levels can vary depending on your neighborhood and the current mix of CAP and groundwater in your part of the city. As the city’s share of Colorado River water has grown over the years, mineral content in the blend has shifted with it, which is why an on-site reading at your specific address gives you a clearer picture than any general estimate.
Common dissolved substances that contribute to TDS include:
Elevated TDS doesn’t automatically mean your water is unsafe, but it does affect taste, odor, and how your water interacts with your plumbing and appliances over time. Your specialist will explain what your reading means for your home.
Test results may vary by region and area.
*Valid Until: 12/31/2023
We test water in Tucson homes every day, from the Foothills, in Marana, in Sahuarita, in Midtown, and everywhere in between. That on-the-ground experience means we’re not guessing at what your water looks like. We already have a strong sense of it before we ever walk through your door.
Tucson’s water supply is genuinely unlike anywhere else in Arizona. The blend of recharged Colorado River water and local groundwater, managed across hundreds of wells and miles of distribution pipe throughout Pima County, means your water’s mineral profile is shaped by factors most homeowners never think about. Our specialists understand exactly what that means at the household level, and they explain your results in plain language, not technical jargon.
A free test from Rite Way isn’t just a number on a page. It’s local knowledge working for you.
Tucson’s water situation is more layered than most cities, and it’s important to understand why.
A blended supply that shifts by neighborhood. Tucson Water delivers a combination of recharged Colorado River water and local groundwater. That blend isn’t uniform across the city. What comes out of your tap can differ depending on which part of the distribution system serves your home. A single citywide description doesn’t capture what’s actually happening at your address.
CAP water and mineral content. Colorado River water naturally carries a higher mineral load than the groundwater it’s blended with. As Tucson has shifted more of its supply toward CAP water over time, that mineral content has become a bigger factor in what reaches Tucson taps and what builds up inside pipes, water heaters, and appliances.
Groundwater shaped by desert geology. Local aquifers run through limestone and caliche-heavy formations that naturally add calcium and magnesium to the water. That geology is part of what makes Tucson water consistently harder than what many homeowners were used to before moving here.
Compliance isn’t the whole picture. Tucson Water meets all state and federal drinking water standards and that’s a solid baseline. But compliance standards are set system-wide. An on-site test at your home gives you information that a city report can’t.
You don’t have to wait for a major problem to make a water test worthwhile. These are common indicators that it’s worth getting your numbers:
Even when water looks and tastes completely normal, hardness and dissolved solids can still be working against your home quietly. A free test is the only way to know for certain.
Our free Level 1 test covers hardness and TDS which are the two measurements that matter most for the majority of Tucson homes. But given the complexity of the local supply, some homeowners want a fuller picture before making any treatment decisions. That’s where Level 2 comes in.
Level 2 builds on the standard test with additional screening for:
Level 2 is especially relevant for homeowners in outlying communities on well water, anyone in an older home with aging pipes, or those who want the most complete information before choosing a treatment system.
Testing availability may vary by region. Contact us to find out what’s available in your area.
A water test gives you real information. In Tucson, where your water travels a long way before it reaches your tap, that information is worth having. Here’s what testing can do for your home:
Your Rite Way specialist doesn’t hand you a printout and leave. Here’s what the end of your appointment actually looks like:
This free water test offer is valid for new customers only in the Tucson metro and surrounding Pima County communities. Not valid for current customers. Current customers may request a water test, fees apply.
If you’re ready to find out what’s in your water, Rite Way makes it easy. We’ll come to your home, test on the spot, and give you clear answers from a team that knows Tucson water inside and out.
Schedule your free water test today.
Yes. Our Level 1 test is completely free for new customers throughout the Tucson metro and Pima County, with no purchase required and no obligation attached.
We measure two things: your water’s hardness in grains per gallon (GPG) and your total dissolved solids (TDS) in parts per million. These are the two most telling indicators of water quality for Tucson homes.
Tucson Water blends Colorado River water from the CAP with local groundwater, and that ratio isn’t uniform across the distribution system. An on-site test at your home gives you a more accurate picture than any citywide average.
Tucson’s hardness and dissolved solids are largely undetectable by sight or taste alone but they’re working on your pipes, appliances, and fixtures regardless. The only way to know where your home actually stands is to test it.
Our free on-site test delivers immediate results for hardness and TDS. A certified lab test screens for a broader range of contaminants including bacteria, heavy metals, and nitrates. If you want that level of detail, ask about our Level 2 extended testing.
For homes on city water, every 1–2 years is a reasonable baseline or any time you notice a change in your water’s taste, smell, appearance, or how your appliances are performing.
We serve Tucson and the broader Pima County area, including Marana, Oro Valley, Sahuarita, Green Valley, Vail, Saddlebrooke, Catalina, and surrounding communities.
