Yes, microplastic is present in tap water, but usually at lower levels than bottled water. Studies from 2023 to 2025 show tap water can contain anywhere from a few hundred to several thousand plastic particles per liter, depending on location and infrastructure. You cannot see or taste them. The safest way to reduce exposure is to install a properly designed home filtration system that removes microplastics at the source.
What’s the uncomfortable truth about your tap water?
Your tap water can be “safe”… and still contain plastic. That is the part most people never hear.
I have been testing water in Orange County homes since 1972. Here is what I tell homeowners straight.
Safe by regulation does not mean free from modern contaminants.
And microplastic in water is one of those modern contaminants.
How much microplastic in water is actually found in tap water?
It varies, but microplastics in water are commonly found in tap water at measurable levels.
Recent studies show:
- Around 100 to several thousand particles per liter in many municipal systems
- Smaller particles called nanoplastics may exist in even higher numbers
- Almost all water sources tested globally show some level of contamination Let me put that in simple terms.
You are not drinking visible plastic.
You are drinking microscopic particles you cannot detect.
Why does tap water contain microplastic in water at all?
Because it comes from everywhere.
Main sources:
- Breakdown of plastic waste in the environment
- Synthetic fibers entering water systems
- Runoff from urban and coastal areas
- Wear and tear in pipes and infrastructure
In coastal areas like Newport Beach and Huntington Beach, ocean exposure adds another layer. Microplastics move through the environment and eventually enter the water supply.
Once plastic breaks down, it does not disappear. It spreads.
Is tap water worse than bottled water for microplastics?
No. Tap water usually contains less microplastic in water than bottled water.
Here is a clear comparison:
| Factor | Tap Water | Bottled Water |
| ➤ Microplastic Levels | Moderate | High |
| ➤ Source of Contamination | Environment | Packaging |
| ➤ Storage Impact | Low | High |
| ➤ Freshness | Immediate | Delayed |
| ➤ Control | Limited | None |
Most bottled water adds contamination from the plastic container itself. So switching to bottles often increases exposure.
Why can’t you see or taste microplastic in water?
Because it is too small.
What makes it invisible:
- Many particles are smaller than a human hair
- Nanoplastics are even smaller
- No taste, smell, or color
It is like dust in the air. You do not notice it, but it is always there. That is why most people assume their water is cleaner than it actually is.
Should you be worried about microplastic in water?
You should be aware and proactive.
What we know so far:
- Microplastics can build up in the body
- They can carry chemicals like PFAS and metals
- Long-term exposure is still being studied This is not about panic.
This is about control and prevention.
What actually removes microplastic in water from your tap?
You need filtration designed for microscopic particles.
Effective solutions:
- Reverse osmosis systems
- Multi-stage filtration systems
- Whole-home water treatment
But here is the truth most companies avoid.
A filter is not a solution. A properly designed system is.
That is the difference between partial improvement and complete control.
Why do most homeowners still get this wrong?
Because they are sold products, not solutions.
I see this across Irvine, Laguna Niguel, and surrounding areas.
Common mistakes:
- Using basic pitcher filters
- Trusting refrigerator filters
- Not testing water at all
- Choosing systems based on price alone Water is not one-size-fits-all.
How does McCowin Water solve this differently?
We do not guess.
We are the Auto Mall of water treatment.
We carry multiple systems and match them to your specific water.
Because water in Irvine is different from Newport Beach or Huntington Beach. We design solutions based on your home, not a sales script.
How do you know what is actually in your tap water?
You test it properly.
We offer a Free, In-Home Water Test where:
- We test your water on-site
- You see results immediately
- We explain everything clearly
- There is zero pressure
We do not send your water to a lab and leave you waiting. You get answers right there in your home.
What guarantee do you have that the solution will work?
We stand behind everything we install.
“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 fix it. No fine print. Because your trust is worth more than the sale.”
That is how we have done business for over 50 years.
What should you do next if you are concerned about microplastic in water?
Do not rely on assumptions. Take control of your water.
Call us at (949) 569-5736 or Schedule a Free, In-Home Water Test Today.
You will:
- See exactly what is in your water
- Understand your options clearly
- Get expert guidance with zero pressure
Because when it comes to your water, you deserve certainty.
Final Thought
Microplastic in water is present in tap water. But the real issue is not the number.
It is whether you are doing anything about it.
McCowin Water Solutions
222 Goddard, Irvine, CA 92618
(949) 569-5736
CSLB Licensed C-55 #1022717
Three generations of McCowin Water. Trusted Orange County water expertise since 1972.
How much microplastic in water is found in tap water?
Tap water can contain anywhere from a few hundred to several thousand microplastic particles per liter, depending on the source and infrastructure
Is tap water worse than bottled water for microplastics?
No. Tap water usually contains fewer microplastics than bottled water, which can add contamination from plastic packaging.
What actually removes microplastic in water from your tap?
Advanced filtration systems like reverse osmosis and multi-stage filtration can effectively remove most microplastics from tap water.