Tetrachloroethylene (PCE) in Drinking Water: Health Risks, Sources, and How to Remove It
Tetrachloroethylene (PCE) is an organic chemical compound that can sometimes contaminate drinking water supplies. It is classified as an organic contaminant under federal regulations. The Environmental Protection Agency (EPA) has set the Maximum Contaminant Level (MCL) for Tetrachloroethylene in public water systems at 5 μg/L.
Health Effects
Consuming water containing Tetrachloroethylene over long periods can lead to liver problems. Additionally, exposure to this contaminant is associated with an increased cancer risk. It is important to monitor and limit long-term exposure to prevent these adverse health effects.
How Tetrachloroethylene (PCE) Gets Into Tap Water
Tetrachloroethylene is commonly used in dry cleaning processes and metal degreasing operations. It can enter drinking water sources through industrial discharge from facilities using these chemical processes. Runoff and soil contamination from industrial sites can lead to the chemical leaching into ground and surface water.
How to Remove Tetrachloroethylene (PCE) From Your Water
Water treatment methods such as granular activated carbon and packed tower aeration are effective at reducing Tetrachloroethylene levels in drinking water. Public water utilities utilize these technologies to keep levels below the regulatory limit. Home filtration systems utilizing certified carbon media are also commonly used for this type of organic contaminant.
Should You Test Your Water?
To check if Tetrachloroethylene is in your drinking water, you can review your local water utility's annual Consumer Confidence Report or use the WaterQ search tool. If you use a private well near industrial areas, regular testing through a certified laboratory is recommended. You can also look up your local water system on WaterQ or check the Tetrachloroethylene (PCE) data page for reported levels in your area.
Frequently Asked Questions
Is Tetrachloroethylene (PCE) dangerous in drinking water?
Yes, long-term exposure to Tetrachloroethylene in drinking water can be hazardous. It can cause liver problems and is associated with an increased cancer risk. Ensuring your water meets the federal safety standard of 5 μg/L is important for protecting your health.
How does Tetrachloroethylene (PCE) get into tap water?
Tetrachloroethylene typically enters tap water through industrial discharge. Common sources of this contamination include dry cleaning businesses and metal degreasing operations.
How can I remove Tetrachloroethylene (PCE) from my water?
It can be removed using treatment methods such as granular activated carbon or packed tower aeration. Home filtration systems designed for organic chemical removal can also be effective.
Source: EPA National Primary Drinking Water Regulations and WaterQ National Database. For more contaminants, visit our contaminant library.