Glendora, California

What is the Water Quality in Glendora, California?

Compared to other US cities, Glendora water quality ranks in the middle range for contamination excluding Lead.

Most of their 26 contaminants have cancer-causing attributes.

• Arsenic is at extremely high levels: 239x health guidelines.

Let’s look closer at what’s in Glendora water.

What’s in Glendora water?

Here are the top 6 chemical compounds in your water and what health issues they can potentially cause:

1. Arsenic – Potential effect: Cancer
2. Bromodichloromethane – Potential effect: Cancer
3. Hexavalent Chromium – Potential effect: Cancer
4. Haloacetic acids (HAA5) – Potential effect: Cancer
5. Total trihalomethanes – Potential effect: Cancer
6. Uranium – Potential effect: Cancer

These are six of the 26 contaminants analyzed by the Environmental Working Group (ewg.org).

14 of these contaminants are rated as exceeding EWG Health Guidelines.

Does Glendora have Lead contamination?

No, Glendora does not currently have lead in its water. The most recent Lead samples collected from 2016 through 2018 showed concentrations of 0.0 parts per billion.

The legal limit for lead is 15 parts per billion. Being well-below this level is a good thing.

Concentrations between 3.8 ppb and 15 ppb put a formula-fed baby at risk of elevated blood lead levels. Read more about the symptoms of Lead in water.

There is no safe level of lead for humans.

The good news is that 99.99% of the lead can be filtered out.

See the What Can You Do? section below to learn how to filter out contaminants.

Where does Glendora’s water come from?

Glendora’s water comes from the Big Dalton Wash watershed.

Both water sources in the Big Dalton Wash watershed are in Impaired condition. These include:

• Puddingstone Reservoir
• Walnut Creek Wash (drains from Puddingstone)

Ideally, a water source would be rated in Good condition.

Learn more from How’s My Waterway

See below for what you can do to improve Glendora’s water.

What Can You Do?

Information about water quality in Glendora can be surprising and downright scary.

But there are things you can do in your home to clean up your water.

To Remove Lead and Other Contaminants In Your Home:

There is one solution that beats Brita, PUR, and expensive whole house systems.

• It costs less per gallon.
• Needs fewer filter changes.
• And it doesn’t make your water taste weird.

• Use Berkey filters with activated carbon to filter out at least 75.9% of contaminants in your drinking water. (Berkey Light and Travel Berkey are the only types available in California.)
  • Berkey filters can also remove up to 99.99% of Lead in Glendora water.
  • Brita can filter 12 contaminants and Lead depending on the filter.
  • Note: We may receive a commission if you decide to purchase filters through links on this page.
• To filter out 23 of the 26 contaminants in your whole house, consider a Reverse Osmosis water filtration system.
  • These are typically more expensive than pitchers to purchase, but can be much more effective.
  • They have the benefit of filtering out heavy hitters like:
    • Arsenic
    • Barium
    • Chromium (hexavalent)
    • Chromium (total)
    • Nitrate
    • Nitrite
    • Perchlorate
    • Strontium
    • Testosterone
    • Uranium

In Your Community:

Contact your local government officials and put pressure on them to invest in cleaner waterways and upgraded city water filtration and treatment.

Go to: https://www.cityofglendora.org/ to find contact information for your local officials.

Water Quality in Other California Cities

California Water Quality Page