Rancho Cordova, California
What is the Water Quality in Rancho Cordova, California?
[Updated: June 9, 2023]
Compared to other US cities, Rancho Cordova water quality ranks in the middle range for contamination excluding Lead.
Most of their 21 contaminants have cancer-causing attributes.
- Arsenic is at extremely high levels: 217x health guidelines.
- Haloacetic acids (HAA5) are at extremely high levels: 239x health guidelines.
- Haloacetic acids (HAA9) are at extremely high levels: 181x health guidelines.
- These are both byproducts of the chlorine treatment process most water supplies go through.
Let’s look closer at what’s in Rancho Cordova water.
What’s in Rancho Cordova water?
Here are the top 5 chemical compounds in Rancho Cordova water and what health issues they can potentially cause:
- Arsenic – Potential effect: Cancer
- Haloacetic acids – Potential effect: Cancer
- Hexavalent Chromium – Potential effect: Cancer
- Nitrate – Potential effect: Cancer
- Total trihalomethanes – Potential effect: Cancer
These are five of the 21 contaminants analyzed by the Environmental Working Group (ewg.org).
7 of these contaminants are rated as exceeding EWG Health Guidelines.
Does Rancho Cordova City water have Lead contamination?
No, Rancho Cordova does not currently have lead in its water. The most recent Lead samples collected from 2015 through 2017 showed concentrations of 0.0 parts per billion (ppb).
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 removed.
See the What Can You Do? section below to learn how to filter out contaminants.
Where does Rancho Cordova’s water come from?
Rancho Cordova’s water comes from the Lake Greenhaven – Sacramento River watershed.
All 4 EPA assessed water sources in the Lake Greenhaven – Sacramento River watershed are in Impaired or Unknown condition. These include:
- Delta Waterways – two portions
- Sacramento City Marina
- Sacramento River
Ideally, a water source would be rated in Good condition.
Whether a water source is in Impaired or Good condition refers to the quality of these uses:
- Drinking Water
- Aquatic Life
- Fish and Shellfish Consumption
Learn more from How’s My Waterway
See below for what you can do to improve Rancho Cordova’s water.
What Can You Do?
Information about water quality in Rancho Cordova can be surprising.
But there are things you can do in your home to clean up your water.
To Remove Lead and Other Contaminants In Your Home:
- Use Activated Carbon filters to remove most contaminants in your drinking water.
- To filter out even more contaminants, consider a Reverse Osmosis water filtration system for your house.
- These are more expensive than pitchers to purchase, but can be more effective.
- They have the benefit of filtering out heavy hitters like:
- Our recommendation: APEC Reverse Osmosis Systems
*Chlorination is an effective method of disinfecting/treating drinking water. You can then use a water filter to reduce the effects of chlorination byproducts to get the safest, cleanest water possible.
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.cityofranchocordova.org/ to find contact information for your local officials.