Know Your Environment. Protect Your Health.

Tetrachloroethylene (perchloroethylene)

Jackson 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.

 

316

Samples

0

Samples exceeding legal limit (MCL)

121

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.718 ppb12340ND - 4.90 ppb
20190.677 ppb14661ND - 4.90 ppb
2020N/A00N/A
20210.400 ppb158ND - 1.10 ppb
20220.248 ppb3111ND - 0.800 ppb
20230.520 ppb11ND - 0.600 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 Result
2018-01-03ND
2018-01-041.60 ppb
2018-01-09ND
2018-01-09ND
2018-01-09ND
2018-01-09ND
2018-01-09ND
2018-01-094.20 ppb
2018-01-093.00 ppb
2018-01-093.40 ppb
2018-01-10ND
2018-01-10ND
2018-01-10ND
2018-01-10ND
2018-01-103.50 ppb
2018-01-101.10 ppb
2018-01-10ND
2018-01-10ND
2018-01-10ND
2018-01-101.50 ppb
2018-01-25ND
2018-02-05ND
2018-02-05ND
2018-02-05ND
2018-02-05ND
2018-02-060.700 ppb
2018-02-06ND
2018-02-073.40 ppb
2018-02-07ND
2018-02-07ND
2018-02-07ND
2018-02-07ND
2018-03-060.600 ppb
2018-03-064.90 ppb
2018-03-062.40 ppb
2018-03-07ND
2018-03-07ND
2018-03-07ND
2018-03-07ND
2018-03-07ND
2018-03-07ND
2018-03-07ND
2018-03-073.80 ppb
2018-03-07ND
2018-03-071.30 ppb
2018-04-03ND
2018-04-03ND
2018-04-03ND
2018-04-03ND
2018-04-030.700 ppb
2018-04-032.50 ppb
2018-04-034.90 ppb
2018-04-04ND
2018-04-04ND
2018-04-041.60 ppb
2018-04-04ND
2018-04-040.900 ppb
2018-04-04ND
2018-04-043.80 ppb
2018-04-110.600 ppb
2018-04-111.30 ppb
2018-04-134.90 ppb
2018-05-02ND
2018-06-06ND
2018-06-07ND
2018-07-11ND
2018-07-11ND
2018-07-11ND
2018-07-11ND
2018-07-12ND
2018-08-07ND
2018-08-073.40 ppb
2018-08-08ND
2018-08-08ND
2018-08-08ND
2018-08-08ND
2018-08-08ND
2018-08-081.000 ppb
2018-08-08ND
2018-08-08ND
2018-08-08ND
2018-08-08ND
2018-08-08ND
2018-08-08ND
2018-08-092.60 ppb
2018-08-091.000 ppb
2018-08-213.50 ppb
2018-08-21ND
2018-08-213.50 ppb
2018-08-220.500 ppb
2018-09-11ND
2018-09-11ND
2018-09-12ND
2018-09-12ND
2018-09-12ND
2018-09-12ND
2018-09-120.600 ppb
2018-09-20ND
2018-10-02ND
2018-10-02ND
2018-10-02ND
2018-10-02ND
2018-10-021.70 ppb
2018-10-023.10 ppb
2018-10-030.700 ppb
2018-10-130.500 ppb
2018-10-162.90 ppb
2018-10-163.30 ppb
2018-11-13ND
2018-11-130.900 ppb
2018-11-13ND
2018-11-131.10 ppb
2018-11-14ND
2018-11-14ND
2018-11-14ND
2018-11-14ND
2018-12-05ND
2018-12-05ND
2018-12-05ND
2018-12-05ND
2018-12-05ND
2018-12-051.40 ppb
2018-12-06ND
2019-01-08ND
2019-01-08ND
2019-01-08ND
2019-01-08ND
2019-01-082.60 ppb
2019-01-08ND
2019-01-081.40 ppb
2019-01-082.50 ppb
2019-01-082.20 ppb
2019-01-090.600 ppb
2019-01-092.00 ppb
2019-01-09ND
2019-01-090.600 ppb
2019-01-091.40 ppb
2019-02-04ND
2019-02-041.40 ppb
2019-02-042.20 ppb
2019-02-041.000 ppb
2019-02-042.30 ppb
2019-02-042.60 ppb
2019-02-040.600 ppb
2019-02-041.40 ppb
2019-02-050.600 ppb
2019-02-05ND
2019-02-051.10 ppb
2019-02-051.80 ppb
2019-02-05ND
2019-02-051.10 ppb
2019-02-060.600 ppb
2019-02-07ND
2019-02-07ND
2019-02-07ND
2019-02-07ND
2019-03-11ND
2019-03-112.00 ppb
2019-03-11ND
2019-03-111.70 ppb
2019-03-111.80 ppb
2019-03-110.900 ppb
2019-03-111.20 ppb
2019-03-11ND
2019-03-12ND
2019-03-121.50 ppb
2019-03-121.30 ppb
2019-03-120.800 ppb
2019-03-124.90 ppb
2019-03-12ND
2019-03-12ND
2019-03-13ND
2019-03-13ND
2019-03-13ND
2019-03-13ND
2019-03-130.600 ppb
2019-04-08ND
2019-04-08ND
2019-04-081.000 ppb
2019-04-082.30 ppb
2019-04-082.50 ppb
2019-04-080.500 ppb
2019-04-081.40 ppb
2019-04-08ND
2019-04-09ND
2019-04-09ND
2019-04-091.000 ppb
2019-04-090.800 ppb
2019-04-09ND
2019-04-091.70 ppb
2019-04-10ND
2019-04-11ND
2019-04-11ND
2019-04-11ND
2019-04-11ND
2019-05-07ND
2019-05-072.80 ppb
2019-05-08ND
2019-05-08ND
2019-05-08ND
2019-05-08ND
2019-05-080.700 ppb
2019-06-05ND
2019-06-052.10 ppb
2019-06-06ND
2019-06-06ND
2019-06-06ND
2019-06-06ND
2019-06-060.700 ppb
2019-07-11ND
2019-07-11ND
2019-07-11ND
2019-07-11ND
2019-07-15ND
2019-07-153.20 ppb
2019-07-152.50 ppb
2019-07-153.70 ppb
2019-07-15ND
2019-07-150.800 ppb
2019-07-150.500 ppb
2019-07-161.70 ppb
2019-07-16ND
2019-07-16ND
2019-08-051.000 ppb
2019-08-060.600 ppb
2019-08-07ND
2019-08-07ND
2019-08-070.900 ppb
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-09-09ND
2019-09-092.20 ppb
2019-09-10ND
2019-09-10ND
2019-09-10ND
2019-09-10ND
2019-09-101.000 ppb
2019-09-10ND
2019-10-09ND
2019-10-09ND
2019-10-09ND
2019-10-09ND
2019-10-140.500 ppb
2019-10-141.20 ppb
2019-10-141.30 ppb
2019-10-144.50 ppb
2019-10-14ND
2019-10-14ND
2019-10-141.60 ppb
2019-10-142.00 ppb
2019-10-15ND
2019-10-154.00 ppb
2019-10-151.50 ppb
2019-11-11ND
2019-11-11ND
2019-11-12ND
2019-11-15ND
2019-11-15ND
2019-11-15ND
2019-11-15ND
2019-12-03ND
2019-12-04ND
2021-01-060.700 ppb
2021-01-12ND
2021-02-040.600 ppb
2021-02-11ND
2021-03-100.800 ppb
2021-03-15ND
2021-06-090.500 ppb
2021-07-14ND
2021-07-150.700 ppb
2021-08-09ND
2021-08-110.600 ppb
2021-09-08ND
2021-09-091.000 ppb
2021-12-08ND
2021-12-091.10 ppb
2022-01-040.700 ppb
2022-01-040.700 ppb
2022-01-040.700 ppb
2022-01-05ND
2022-01-05ND
2022-01-05ND
2022-01-10ND
2022-01-10ND
2022-01-10ND
2022-01-11ND
2022-01-11ND
2022-01-11ND
2022-02-080.700 ppb
2022-02-080.700 ppb
2022-02-080.700 ppb
2022-02-08ND
2022-02-08ND
2022-02-08ND
2022-02-090.800 ppb
2022-02-090.800 ppb
2022-02-090.800 ppb
2022-03-02ND
2022-04-06ND
2022-04-12ND
2022-04-13ND
2022-05-020.600 ppb
2022-05-03ND
2022-05-03ND
2022-06-06ND
2022-06-060.500 ppb
2022-06-07ND
2023-06-010.520 ppb*

* Sample result is taken from the system's CCR report.