Irvine Ranch Water District delivers 320 PPM very hard water to your home. Our whole-home filtration systems remove hardness, chlorine, and scale — for softer skin and better-tasting water from every tap.
Irvine's water is supplied by the Irvine Ranch Water District (IRWD), which blends imported Colorado River and State Water Project supplies with local groundwater. The result is very hard water at approximately 320 PPM — well above the 120 PPM threshold that defines hard water.
IRWD also uses chloramines at roughly 2.1 mg/L for disinfection. While safe to drink, chloramines leave a chemical taste and odor and can dry out skin and hair. The high mineral content causes scale buildup on fixtures, glassware, and appliances — the most common water complaint we hear from Irvine homeowners.
Very Hard — anything over 120 PPM is considered hard water.
Used for disinfection — causes bad taste and dry skin.
High mineral content causing scale buildup on fixtures.
At 320 PPM, Irvine water is packed with calcium and magnesium. Over time, these minerals crystallize inside your pipes, water heater, and appliances.


* Drag the slider to compare scale buildup vs. protected pipes
Four premium filtration solutions — we'll help you pick the right one based on your free in-home water test.
Stainless Steel System
Ultimate protection with lifetime warranty. Maximum filtration and salt-free scale prevention.
High-Capacity System
Excellent whole-home filtration and scale control at an incredible value.
Space-Saving Design
Advanced Filtersorb SP3 technology protecting your plumbing, fixtures, and appliances.
Under-Sink Drinking Water
Bottled-quality water right at your kitchen sink. Removes 99% of dissolved solids.
Reach out for a free, no-obligation consultation. We answer fast.
We test your Irvine home's water and recommend the right system for your needs.
Professional Installation by Applied Plumbing & Rooter, Inc. — CA License #1151992
"Huge difference in our water within a day. No more spots on our glasses, and the shower feels amazing. The team was professional from start to finish."
"The free water test was eye-opening. We had no idea how hard Irvine water really is. Installation was clean and quick — best home upgrade we've done."
Got questions? We've got answers about water filtration in Irvine.
We provide water filtration and testing services throughout Orange County.
Schedule your FREE in-home water test today and lock in $500 off your premium filtration system.