The Dirty Details: PFAS and Chromium-6 in Simi Valley’s Drinking Water
By The Clean Water Company | www.dontdrinkyourwater.com
If you live in Simi Valley, CA, you probably assume your tap water is safe. After all, it’s treated, regulated, and delivered straight to your home—so what’s the problem?
At The Clean Water Company, we believe it's important to understand where your water comes from, what it goes through, and how you can protect your family from the contaminants it picks up along the way. Spoiler alert: the water that flows through your pipes might be carrying more than just H₂O.
Where Does Simi Valley’s Water Come From?
Simi Valley’s water supply is a blend of imported surface water and local groundwater. The majority comes from the State Water Project, which transports water from Northern California all the way to Southern California through a complex system of aqueducts and treatment facilities.
This water is handed off to the Calleguas Municipal Water District, which then supplies local water retailers such as Golden State Water Company and Ventura County Waterworks—delivering it to homes across Simi Valley.
The Water’s Journey: What It Picks Up Along the Way
As this water travels hundreds of miles across old pipelines, reservoirs, and industrial corridors, it collects a range of unwanted contaminants. Even after treatment, many harmful substances remain in your tap water. Some of the biggest offenders in Simi Valley’s supply include:
What’s in Simi Valley Water—And Where It Comes From
Chromium-6 (Hexavalent Chromium)
Where it comes from:
Industrial waste from steel manufacturing, chrome plating, and tanning
Naturally occurring in California’s rock and soil
Why it matters:
This cancer-causing chemical became infamous in Erin Brockovich’s case—and it’s been detected in Simi Valley water. It’s not fully removed during standard treatment, and there is no federal limit specific to Chromium-6 alone.
PFAS (“Forever Chemicals”)
Where they come from:
Non-stick cookware, firefighting foam, landfills, and industrial discharge
Groundwater contamination near airports and factories
Why it matters:
PFAS are linked to hormone disruption, cancer, and immune system issues. These chemicals don’t break down and are tough to filter with standard methods. Many systems report PFAS levels above health advisory limits.
TTHMs (Total Trihalomethanes) & HAAs (Haloacetic Acids)
Where they come from:
Byproducts of chlorine and chloramine reacting with organic matter during disinfection
Why it matters:
These chemicals have been associated with cancer and developmental risks, especially with long-term exposure. They’re commonly found in treated water across Southern California.
Hard Water (Calcium & Magnesium)
Where it comes from:
Natural minerals absorbed as water flows through underground rock formations
Why it matters:
Hard water causes scale buildup, appliance wear, spotty dishes, and dry skin. It’s not a health hazard—but it is a costly nuisance for homeowners.
How The Clean Water Company Can Help
That’s where we come in.
At The Clean Water Company, we provide customized filtration solutions designed to remove the contaminants that most municipal systems can’t.
✅ Whole-Home Water Filtration
Targets chlorine, chloramine, PFAS, VOCs, heavy metals, and more
Reduces scaling and protects your plumbing and appliances
Provides clean water to every tap in your home
✅ Reverse Osmosis (RO) Systems
Installed under your kitchen sink for ultra-purified drinking water
Removes PFAS, Chromium-6, nitrates, arsenic, fluoride, and other harmful contaminants
Safer, better-tasting water for cooking, drinking, and kids’ bottles
Many homeowners choose both—a whole-home system to protect their plumbing and showers, and RO at the sink for pure drinking water.
Don’t Drink Your Water… Yet
Even if your tap water meets federal standards, it may still carry toxins you’d never knowingly allow in your home. The solution isn’t panic—it’s protection.
Let The Clean Water Company help you take control of your water quality. Visit www.dontdrinkyourwater.com or contact us today for a free consultation and product recommendations tailored to Simi Valley’s unique water profile.
Cleaner water is just one system away.
