Know Your Environment. Protect Your Health.

Tetrachloroethylene (perchloroethylene)

Beverly Village Public Water System

Dry cleaning chemical tetrachloroethylene, or perc, can cause cancer. It pollutes soil and groundwater due to emissions from dry cleaning facilities, and automotive, metalworking and other industries. Read More.

The EPA considers tetrachloroethylene a likely human carcinogen. It has been linked with increased incidence of lung, breast and colon cancers. Tetrachloroethylene also damages the liver, kidneys and central nervous system. The California public health goal of 0.06 parts per billion, set to protect against cancer, is 80 times lower than the amount allowed by the federal government, which is a Maximum Contaminant Level of 5 parts per billion.

Click here to read more about carcinogenic VOCs.

 

28

Samples

3

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.175 ppb41ND - 0.700 ppb
20190.200 ppb41ND - 0.800 ppb
20201.96 ppb52ND - 9.00 ppb
20210.200 ppb43ND - 0.500 ppb
20222.62 ppb550.300 ppb - 11.4 ppb
20231.56 ppb64ND - 8.70 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for tetrachloroethylene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL): 5 ppb

The legal limit for tetrachloroethylene, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit does not fully protect against the risk of cancer due to tetrachloroethylene exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-02A180540125ND
2018-05-18A180593298ND
2018-09-21A1806140450.700 ppb
2018-12-078L01081-03ND
2019-01-189A02579-030.800 ppb
2019-04-199D02649-02ND
2019-08-099H01604-01ND
2019-12-069L00934-01ND
2020-02-140B01717-010.800 ppb
2020-02-140B01717-039.00 ppb
2020-04-240D02845-03ND
2020-08-070H01098-03ND
2020-10-090J01490-02ND
2021-01-151A01716-01ND
2021-04-021D00320-030.200 ppb
2021-08-061H01085-030.1000 ppb
2021-10-291J03830-030.500 ppb
2022-02-112B01419-030.300 ppb
2022-04-082D00982-030.400 ppb
2022-08-092H01277-010.600 ppb
2022-08-162H02488-0111.4 ppb
2022-11-232K03089-010.400 ppb
2023-01-133A01774-010.300 ppb
2023-01-133A01774-038.70 ppb
2023-01-133A01774-04ND
2023-04-073D00891-050.300 ppb
2023-07-143G02338-030.0800 ppb
2023-10-063J01102-01ND