City of Whittier Water delivers 305 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.
Whittier's water is supplied by the City of Whittier Water. The local supply measures 305 PPM of hardness, classified as "Very Hard" — well above the 120 PPM threshold that defines hard water.
The utility also uses chlorine/chloramines at roughly 2.1 mg/L for disinfection. While safe to drink, these 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 Whittier homeowners.
Very Hard — anything over 120 PPM is considered hard water.
Used for disinfection — causes bad taste and dry skin.
Higher hardness typical of SE LA County causing scale.
Whittier is a city in Los Angeles County, California, United States. As of the 2020 census, the city had a population of 87,306. Located in the eastern part of the county at the base of the Puente Hills, Whittier was founded in 1887 and incorporated in 1898. The city is named after the Quaker poet John Greenleaf Whittier and is home to Whittier College. Whittier is known for its historic Uptown district and well-preserved early 20th-century architecture.
As a locally based water filtration company serving Whittier and the surrounding Orange County area, truClear Water Filtration Co. understands the specific water quality challenges that Whittier residents face. Our team has installed hundreds of whole-home filtration and softening systems in Whittier homes, giving us firsthand experience with the mineral content, scale behavior, and chlorine levels characteristic of the City of Whittier Water supply.
Whether you live in a newer Whittier development or an established neighborhood with older plumbing, our free in-home water test will reveal exactly what's in your water — and our licensed installers (Applied Plumbing & Rooter, CA Lic. #1151992) will recommend the right system for your home's specific needs.
At 305 PPM, Whittier 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 Whittier home's water and recommend the right system.
Professional Installation by Applied Plumbing & Rooter, Inc. — CA License #1151992
Common questions from Whittier homeowners about our water filtration systems.
We provide the same premium water filtration and free testing to homeowners in the surrounding communities.
Lock in your $300 savings and 50% off reverse osmosis — plus 3 years of complimentary filter & media replacements.