Orange County tap water can include hidden water contaminants such as PFAS (“forever chemicals”), nitrates, and microscopic contaminants that may affect your plumbing, water quality, and household comfort, depending on where you live: Newport Beach, Irvine, Laguna Niguel, Huntington Beach, and nearby areas. The only way to protect your family and avoid wasting money on the wrong system is through a professional, on-site water test that identifies exactly what is coming out of your faucet.

Here is a dirty little secret the water industry does not want you to know
A lot of people think clear water means clean water.
That is like saying a shiny car engine must be healthy because the hood looks nice.
I’m Brian McCowin. My family has been solving Orange County water problems since 1972, and I can tell you this: some of the biggest water issues are things you cannot see, smell, or taste.
I’ve walked into beautiful homes in Newport Beach with scale choking expensive fixtures. I’ve seen families in Laguna Niguel spending thousands on skin products because harsh water was drying everyone out. I’ve seen people buy expensive filtration systems that fixed absolutely nothing because nobody tested the water correctly.
You know what frustrates me? Homeowners are trying to protect their families, but too many companies sell fear first and solutions second.
Let’s talk about what may actually be in your water.
Why are Orange County homeowners worried about water contaminants?
Orange County homeowners are worried because water can pick up minerals, chemicals, and environmental contaminants before it reaches the tap.
Southern California water travels long distances. Along the way it collects minerals from rock formations, receives municipal treatment chemicals, and can come into contact with groundwater contaminants.
Not every house has every issue. But these are the five things I see most often.
What are the top contaminants found in Orange County tap water?
The most common concerns include hard water minerals, chloramines, PFAS, nitrates, and microscopic contaminants.
| Contaminant | What it does in your home | What it can affect |
|---|---|---|
| ➤ Hard minerals (calcium and magnesium) | Creates scale buildup | Plumbing, appliances, skin |
| ➤ Chloramines | Leaves chemical taste and odor | Hair, skin, drinking water taste |
| ➤ PFAS (“Forever Chemicals”) | Can remain in water for long periods | Long-term health concerns |
| ➤ Nitrates | Can enter groundwater | Drinking water quality |
| ➤ Microplastics and emerging contaminants | Tiny particles difficult to see | Ongoing consumer concern |
Hard Water Minerals: The Silent Appliance Killer
Think of hard water minerals like cholesterol in arteries.
One day you notice white spots on your glass shower doors.
Then your water heater works harder.
Then your dishwasher struggles.
Then expensive appliances start failing years early.
Hard water buildup can affect:
- Water heaters
- Washing machines
- Dishwashers
- Pipes
- Shower heads
- Faucets
The scary part is how slowly it happens.
Most people do not realize the damage until they’ve already paid for it.
Chloramines: Why Your Water May Smell Like A Pool
Cities use disinfectants because they need to keep water safe while it travels long distances.
That matters.
But sometimes homeowners tell me:
“Brian, why does my shower smell like a swimming pool?”
That chemical smell often comes from disinfectant compounds used in water treatment.
Some homeowners also notice:
- Dry skin
- Brittle hair
- Strange taste
- Irritated eyes after showering
PFAS: What Are “Forever Chemicals” And Why Are People Talking About Them?
PFAS are called “forever chemicals” because they break down extremely slowly.
PFAS act similarly in the environment. Scientists and regulators have increased focus on them in recent years because these compounds can remain present for very long periods.
The important thing is knowing what is actually in your water.
Nitrates: The Contaminant Most Homeowners Never Think About
Nitrates can enter groundwater from environmental sources and agricultural activity.
Most people have never heard of them.
That is exactly why they deserve attention.
You cannot see them, smell them, taste them.
That is why guessing does not work.
Microplastics: Tiny Problems Creating Big Questions
Microplastics are microscopic plastic particles.
Picture taking a plastic bottle and shaving off dust particles so tiny you cannot see them.
Researchers continue studying how much people are exposed to these particles and what their long-term effects may be.
What I can tell you is this: People deserve transparency.
How do I know what contaminants are actually in my home’s water?

You know what contaminants are in your home’s water by performing a professional on-site test.
This is where many homeowners get trapped.
Some companies send samples away and disappear for days.
Others perform dramatic kitchen-table experiments designed to scare you into buying something immediately.
We do things differently.
We test water right in your home because your plumbing, pressure, and water conditions matter.
Our process looks at:
- Water hardness
- Water chemistry
- Existing plumbing conditions
- Pressure
- Household usage habits
- Potential contaminant concerns
At McCowin Water, we built our business to be the “Auto Mall” of water treatment.
We are not a captive dealer pushing one box onto every family.
What makes McCowin Water different from other water treatment companies?
McCowin Water is different because we focus on solving your problem instead of hitting a sales quota.
We’ve been serving Orange County families since 1972.
We do not believe in scare tactics.
We do not believe in one-size-fits-all systems.
We believe in finding the exact right fit for your home.
And we stand behind our work:
“If the system we install doesn’t perform the way we promised… If your water doesn’t taste, feel, or behave the way we said it would… We’ll pull the whole system out. And either replace it or make it right. No fine print. Because your trust is worth more than the sale.”
How can I protect my Orange County water?
The best way to protect your Orange County water is by understanding exactly what is coming from your tap before buying equipment.
Let’s figure out exactly what is happening inside your home.
Call us at (949) 569-5736 or Schedule a Free, In-Home Water Test Today. We perform professional on-site testing directly at your kitchen sink with zero sales pressure and honest answers built on decades of Orange County experience.
CSLB: C-55 #1022717
Why are Orange County homeowners worried about water contaminants?
What are the top contaminants found in Orange County tap water?
How do I know what contaminants are actually in my home’s water?
Posted on Google Daniel VuTrustindex verifies that the original source of the review is Google. I want to thank McCowin Water for the excellent service provided. A special recognition goes to Joel A. for his professionalism, friendly demeanor, and positive “can-do” attitude throughout the installation. Joel made the entire process smooth and worry-free, and his approach truly reflects the quality of service McCowin Water stands for.Posted on Google Reza OhadiTrustindex verifies that the original source of the review is Google. Great workPosted on Google Richard HoffpauerTrustindex verifies that the original source of the review is Google. Braulio was thorough, professional, informative, and polite. When he noticed our chlorine level was a little high he asked if he could see our soft water unit. He noted that apparently I had forgotten to turn it back on when we got back from vacation. Problem solved. I hope all of your employees are as efficient and friendly as Braulio. He’s up-and-coming for sure. Don’t let him get away.Posted on Google Maureena KosareffTrustindex verifies that the original source of the review is Google. I am super impressed with the professionalism and work ethic of my water softener installers. They had to do things differently from planned and easily adjusted to the new method and positioning. They kept me well informed and their interaction with eachother was so very professional, informative, and patient.Posted on Google Mark BallardTrustindex verifies that the original source of the review is Google. It was a pleasure working with Brian and his team. The whole experience was the best I’ve had with any company I’ve dealt with. Professional and honest with a warranty from a well established company that will be around for the long term. I’ve worked with companies in the past that weren’t there when I needed them. Thank you again to the whole team Mark BallardPosted on Google Emilie PetrozziTrustindex verifies that the original source of the review is Google. Braulio was very informative, answered all my questions with thoughtfulness, and was very pleasant. Great service!Posted on Google Quinn HawksworthTrustindex verifies that the original source of the review is Google. Chris was exceptional during our first water test and sales experience. Joel our technician was awesome. Everything was done very well. 5 stars all the way around.Posted on Google AdamTrustindex verifies that the original source of the review is Google. Top-notch experience - professional, no hidden fees, communicated clearly and efficiently. Got the job done as promised, no drama.Posted on Google Teresa PTrustindex verifies that the original source of the review is Google. Braulio did a fantastic job installing our reverse osmosis system! Mccowin has always treated us so well since we had them put our first soft water system and drinking water system in our home back in 2010. Thank you