Trichloroethylene (TCE) in Drinking Water: Health Risks, Sources, and How to Remove It
Trichloroethylene (TCE) is an organic chemical contaminant regulated in public drinking water. The U.S. Environmental Protection Agency has set its Maximum Contaminant Level (MCL) at 5 μg/L to limit exposure. Monitoring for TCE helps ensure that public water systems remain within safe limits.
Health Effects
Exposure to Trichloroethylene (TCE) in drinking water can lead to health concerns. Consuming water contaminated with this chemical is associated with liver problems and an increased risk of cancer. Minimizing exposure is important for protecting long-term health.
How Trichloroethylene (TCE) Gets Into Tap Water
Trichloroethylene (TCE) is released into the environment primarily through industrial activities. Common sources of contamination include industrial discharge and runoff or infiltration from metal degreasing operations. These processes can allow the chemical to enter water supplies.
How to Remove Trichloroethylene (TCE) From Your Water
Effective treatment methods are available to reduce Trichloroethylene (TCE) levels in drinking water. Granular activated carbon and packed tower aeration are standard technologies used to treat and remove this contaminant. Utilizing these systems helps ensure water safety.
Should You Test Your Water?
You can check for the presence of Trichloroethylene (TCE) by reviewing your water utility's annual consumer confidence report or searching on WaterQ. If you use a private well in an area with industrial history, testing your water is a prudent step. You can also look up your local water system on WaterQ or check the Trichloroethylene (TCE) data page for reported levels in your area.
Frequently Asked Questions
Is Trichloroethylene (TCE) dangerous in drinking water?
Yes, Trichloroethylene (TCE) can be harmful when present in drinking water. Long-term exposure is associated with an increased risk of cancer and liver problems. Maintaining levels below the safety standard is necessary to protect health.
How does Trichloroethylene (TCE) get into tap water?
TCE typically enters drinking water supplies through industrial discharge and runoff from metal degreasing processes.
How can I remove Trichloroethylene (TCE) from my water?
Trichloroethylene (TCE) can be removed from drinking water using granular activated carbon or packed tower aeration systems.
Source: EPA National Primary Drinking Water Regulations and WaterQ National Database. For more contaminants, visit our contaminant library.
What actually removes vocs (benzene, tce, pce and related solvents)
Volatile organic compounds are the case where activated carbon genuinely shines — EPA lists granular activated carbon as the best available technology for most of them. Look for an NSF/ANSI 53 filter with a VOC reduction claim rather than a plain taste-and-odor cartridge. Because VOCs evaporate readily, they also enter the air during hot showers, so a whole-house carbon filter is worth considering when levels are high, not just a filter at the kitchen tap.
Works
- Carbon certified for lead (NSF 53)The cheapest thing that genuinely removes lead, cysts and many VOCs.
- Reverse osmosis (NSF 58)The broadest removal available at home: arsenic, nitrate, fluoride, PFAS, TDS.
- Catalytic carbonRequired for chloramine. Standard carbon barely touches it.
Will not fix this
- Ion-exchange water softener
- UV disinfection (NSF 55)
- Ion-exchange pitcher
Test before you buy.VOCs (benzene, TCE, PCE and related solvents) can't be seen, tasted or smelled, and the right hardware depends on the concentration you actually have. A certified lab test costs a fraction of the wrong filtration system. Start with your local water quality report, and get a mail-in lab test if you're on a private well.
Options that carry the right certification
Ordered cheapest-adequate first. Prices are indicative bands and move often.
| Product | Certification | Upfront | Per year | |
|---|---|---|---|---|
| Aquasana AQ-5200 Under-SinkUnder-sink | NSF/ANSI 42, 53, 401 and P473 certified.Catch:Carbon, not RO — no meaningful fluoride, nitrate or arsenic reduction. | $110–160 | $80–120 | Check price |
| SpringWell CF1 Whole-House CarbonWhole house | Catalytic carbon media, which is the grade required to reduce chloramine.Catch:Whole-house carbon protects showers and appliances but is not a substitute for a point-of-use lead or PFAS filter at the tap. | $900–1,400 | $0–100 | Check price |
| APEC ROES-50 EssenceUnder-sink | Built with WQA-certified components to NSF/ANSI 58.Catch:Needs an under-sink drain connection and a spare hole for the dedicated faucet. Strips minerals — some people dislike the flat taste. | $180–240 | $50–80 | Check price |
| Brita Elite Pitcher FilterPitcher | NSF/ANSI 42 and 53 certified, including a lead reduction claim.Catch:No fluoride, nitrate or arsenic reduction. Not PFAS-rated. | $25–40 | $50–70 | Check price |
Certification listings change. Before buying, confirm the current listing for the exact model in the NSF certified products database — a manufacturer's marketing page is not a certification. WaterQ earns a commission on purchases made through these links at no extra cost to you; see our affiliate disclosure. This is general information, not medical or engineering advice.
For a full breakdown of certifications, running costs and the models worth considering, see our buying guide for vocs (benzene, tce, pce and related solvents).