Ontario Tap Water Quality Report
Ontario's water has 3 contaminants above EPA MCLGs. Consider using a certified water filter for additional protection.
Utility
ONTARIO WATER SYSTEM
People Served
14,465
MCL Violations
0
Last Updated
Aug 9, 2022
Is Ontario Tap Water Safe to Drink?
Ontario's water has 3 contaminants above EPA health-based guidelines (MCLGs). While the water meets federal legal limits, we recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems.
The data below shows test results from ONTARIO WATER SYSTEM, which serves 14,465 people in the Ontario area. Water quality testing is conducted regularly and reported to the EPA. This report was last updated Aug 9, 2022.
Ontario Water Quality Test Results
Key Water Quality Metrics
Contaminants Detected
⚠️ Contaminants Above EPA MCLG (3)
Uranium
What is Uranium?
Uranium is a weakly radioactive heavy metal found naturally in bedrock and used in nuclear weapons, some ceramics, electron microscopy stains, photography toners, and certain fertilizers. Uranium is weakly radioactive because all of its isotopes (Uranium-234, Uranium-235, and Uranium-238) are unstable. Ninety-nine percent of naturally existing uranium is in the isotope form uranium-238. The EPA has established a maximum contaminant level for uranium in drinking water in response to human and animal studies indicating kidney toxicity and and increased risk of cancer.
Health Effects
Health protective benchmarks for uranium are based on adverse kidney system effects observed in both humans and animals and an increased risk of cancer. Animal studies have also shown female reproductive system and developmental toxicity, as well as genotoxicity, related to uranium exposure.
Affected Organs
Common Sources
Chlorine (Free)
What is Chlorine (Free)?
Chlorine is a chemical element with the symbol Cl and atomic number 17. It is a yellow-green gas at room temperature and is a strong oxidizing agent. Chlorine is commonly used in water treatment to kill bacteria and other pathogens.
Health Effects
Exposure to chlorine can cause respiratory issues, skin irritation, and eye irritation. Ingesting chlorine can lead to gastrointestinal distress and other serious health problems.
Affected Organs
Common Sources
Total THMs
What is Total THMs?
Group of contaminants that form in drinking water systems when a disinfectant, typically chlorine, reacts with organic matter
Health Effects
Drinking water standards for total THMs are based on evidence of carcinogenicity in human and animal studies, as well as liver and kidney toxicity observed in animal studies. Individual THMs have been further associated with developmental, immune, spleen, and genotoxicity.
Affected Organs
Common Sources
Understanding the Data
This data comes from your local water utility testing. The bar charts compare detected levels against EPA's Maximum Contaminant Level Goal (MCLG). Contaminants above the MCLG are shown by default and may require filtration. All other tested contaminants are within safe levels and can be viewed by expanding the section above.
Recommended Water Filters for Ontario
Based on Ontario's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA MCLGs.
![CL10RO T/33[2]](/_next/image?url=https%3A%2F%2Fm.media-amazon.com%2Fimages%2FI%2F41pxMA2nbGL._AC_SY355_.jpg&w=3840&q=75)
Omnipure Filter Co.
CL10RO T/33[2]
NSF Certified:
Capacity
1500 gal
Filter Life
5 mo
Flow Rate
0.5 gpm
Removes 3 contaminants:
Chlorine (Free), Chlorine (Total), Chlorine Dioxide
![K2586[4]](/_next/image?url=https%3A%2F%2Fm.media-amazon.com%2Fimages%2FI%2F51a1ksQLAXL._AC_SY355_.jpg&w=3840&q=75)
Omnipure Filter Co.
K2586[4]
NSF Certified:
Capacity
1250 gal
Filter Life
4 mo
Flow Rate
0.5 gpm
Removes 3 contaminants:
Chlorine (Free), Chlorine (Total), Chlorine Dioxide
Whirlpool Corporation
W11256135
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.7 gpm
Removes 19 contaminants:
1,2 Dichlorobenzene, 1,4 Dichlorobenzene, 2,4-D, Asbestos, Atrazine +14 more
![CL10RO T/28[2]](/_next/image?url=https%3A%2F%2Fm.media-amazon.com%2Fimages%2FI%2F41ocJswEp4L._AC_SY355_.jpg&w=3840&q=75)
Omnipure Filter Co.
CL10RO T/28[2]
NSF Certified:
Capacity
1500 gal
Filter Life
5 mo
Flow Rate
0.5 gpm
Removes 3 contaminants:
Chlorine (Free), Chlorine (Total), Chlorine Dioxide
Verify Your Water Quality with Independent Testing
With 3 contaminants above EPA health guidelines, independent laboratory testing provides a second opinion and can track changes over time.
SimpleLab
Standard Home Water Test
$232
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
SimpleLab
Advanced Home Water Test
$369
Most comprehensive home water test including all standard tests plus additional parameters for ultimate peace of mind.
Tap Score
Advanced Microplastics Test
$636
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
Frequently Asked Questions About Ontario Tap Water
Ontario's water has 3 contaminants above EPA MCLGs. While the water meets federal legal limits, we recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems.