Dichloroacetic Acid (DCA)
Member of haloacetic acids (HAAs) that form as byproducts when chlorine reacts with organic matter
EPA MCLG Level
0 ppb
Maximum level that poses minimal health risk based on the latest science
Health Effects
Health protective benchmarks for DCA are based on evidence of increased cancer risk and liver toxicity observed in animal studies. Adverse effects to the male reproductive system have also been associated with elevated levels of DCA in animal studies. The EPA classifies DCA as a likely human carcinogen.
Affected Organs & Systems:
Common Sources
- Chlorine disinfection interacting with naturally occurring organic matter in distribution systems
- Levels usually higher in surface water than groundwater
- Industrial release or natural chlorination of organic matter
How to Remove It
Water filters certified under the following NSF standards are effective at removing Dichloroacetic Acid (DCA):
EPA MCLG Level
The EPA MCLG represents the maximum level that poses minimal health risk based on the latest scientific research. It's often more protective than federal legal limits.
Contaminant Type
Dichloroacetic Acid (DCA) is classified as a Disinfection Byproducts contaminant.
This contaminant primarily affects the reproductive-m, carcinogens, and other systems.
Check Your Water
Find out if Dichloroacetic Acid (DCA) is in your tap water.
Search Your CityTest Your Water for This Contaminant
Public water reports may not test frequently enough or at your specific tap. Professional home testing provides current, location-specific results.
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Standard Home Water Test
$232
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Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.