Tetrachloroethylene (perchloroethylene)
East Orange Water Commission
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 1.00 ppb | 138 | 113 | ND - 3.72 ppb |
2015 | 1.04 ppb | 68 | 67 | ND - 2.18 ppb |
2016 | 0.893 ppb | 95 | 86 | ND - 2.18 ppb |
2017 | ND | 24 | 0 | ND |
2018 | ND | 22 | 0 | ND |
2019 | ND | 18 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
---|---|---|
2014-01-07 | 24913-1 | 1.04 ppb |
2014-01-09 | 24970-1 | 0.680 ppb |
2014-01-09 | 24970-2 | 2.98 ppb |
2014-01-14 | 25006-1 | 0.900 ppb |
2014-01-21 | 25140-1 | 0.980 ppb |
2014-01-28 | 25218-1 | 1.06 ppb |
2014-01-31 | 25276-1 | 1.93 ppb |
2014-01-31 | 25276-2 | ND |
2014-01-31 | 25276-5 | 2.52 ppb |
2014-01-31 | 25276-3 | 1.06 ppb |
2014-01-31 | 25276-4 | 0.930 ppb |
2014-02-06 | 25316-1 | 0.890 ppb |
2014-02-07 | 25337-1 | 0.550 ppb |
2014-02-07 | 25337-2 | 2.58 ppb |
2014-02-11 | 25394-1 | 0.750 ppb |
2014-02-18 | 25484-1 | 0.940 ppb |
2014-02-21 | 25559-2 | 1.53 ppb |
2014-02-21 | 25559-1 | ND |
2014-02-21 | 25559-3 | 1.89 ppb |
2014-02-21 | 25559-5 | 0.770 ppb |
2014-02-21 | 25559-4 | 0.690 ppb |
2014-02-25 | 25576-1 | 0.790 ppb |
2014-03-04 | 25672-1 | 0.880 ppb |
2014-03-06 | 25737-2 | 0.560 ppb |
2014-03-06 | 25737-3 | 2.43 ppb |
2014-03-06 | 25737-1 | ND |
2014-03-11 | 25775-1 | 0.850 ppb |
2014-03-13 | 25847-2 | 1.74 ppb |
2014-03-13 | 25847-1 | ND |
2014-03-14 | 25864-3 | ND |
2014-03-14 | 25864-4 | ND |
2014-03-14 | 25864-2 | 2.07 ppb |
2014-03-14 | 25864-1 | 0.780 ppb |
2014-03-18 | 25881-1 | 0.970 ppb |
2014-03-25 | 26003-1 | 0.950 ppb |
2014-03-25 | 26002-2 | ND |
2014-03-25 | 26002-3 | ND |
2014-03-25 | 26002-1 | ND |
2014-04-02 | 26091-1 | 1.01 ppb |
2014-04-10 | 26219-1 | 1.09 ppb |
2014-04-11 | 26230-1 | 1.11 ppb |
2014-04-15 | 26276-1 | 1.23 ppb |
2014-04-17 | 26318-2 | 2.80 ppb |
2014-04-17 | 26318-1 | ND |
2014-04-17 | 26317-1 | 2.73 ppb |
2014-04-17 | 26318-3 | 2.47 ppb |
2014-04-17 | 26318-4 | 0.930 ppb |
2014-04-17 | 26318-5 | 0.880 ppb |
2014-04-22 | 26360-1 | 1.29 ppb |
2014-04-24 | 26411-2 | 2.81 ppb |
2014-04-24 | 26411-1 | 0.730 ppb |
2014-04-29 | 26464-1 | 1.25 ppb |
2014-05-07 | 26577-1 | 1.32 ppb |
2014-05-08 | 26615-2 | 3.26 ppb |
2014-05-08 | 26615-1 | ND |
2014-05-08 | 26615-3 | 3.09 ppb |
2014-05-08 | 26615-4 | 0.930 ppb |
2014-05-08 | 26615-5 | 0.840 ppb |
2014-05-13 | 26667-1 | 1.24 ppb |
2014-05-14 | 26681-1 | 0.880 ppb |
2014-05-19 | 26759-1 | ND |
2014-05-21 | 26792-1 | 1.09 ppb |
2014-05-22 | 26819-4 | 2.70 ppb |
2014-05-22 | 26819-1 | 0.740 ppb |
2014-05-22 | 26819-2 | 2.73 ppb |
2014-05-22 | 26819-3 | 2.49 ppb |
2014-05-27 | 26878-1 | 1.06 ppb |
2014-06-09 | 27071-1 | 0.880 ppb |
2014-06-10 | 27079-1 | 0.800 ppb |
2014-06-10 | 27097-1 | 0.870 ppb |
2014-06-11 | 27122-1 | 0.970 ppb |
2014-06-12 | 27158-1 | 2.26 ppb |
2014-06-12 | 27158-2 | ND |
2014-06-12 | 27158-3 | 1.67 ppb |
2014-06-12 | 27158-4 | 0.940 ppb |
2014-06-12 | 27158-5 | 0.870 ppb |
2014-06-17 | 27241-1 | 1.03 ppb |
2014-06-19 | 27330-1 | 1.17 ppb |
2014-06-19 | 27331-1 | 0.740 ppb |
2014-06-19 | 27331-2 | 2.67 ppb |
2014-06-20 | 27346-1 | 1.18 ppb |
2014-06-20 | 27371-1 | ND |
2014-06-20 | 27371-2 | ND |
2014-06-24 | 27397-1 | 1.13 ppb |
2014-06-30 | 27523-1 | 0.980 ppb |
2014-07-10 | 27714-1 | 0.970 ppb |
2014-07-10 | 27713-1 | ND |
2014-07-10 | 27713-2 | ND |
2014-07-10 | 27713-3 | ND |
2014-07-15 | 27777-1 | 0.990 ppb |
2014-07-23 | 27976-1 | 0.780 ppb |
2014-07-28 | 28019-1 | 0.770 ppb |
2014-07-30 | 28095-1 | 0.640 ppb |
2014-07-31 | 28096-1 | 0.670 ppb |
2014-08-04 | 28121-1 | 0.610 ppb |
2014-08-05 | 28147-1 | 0.650 ppb |
2014-08-06 | DWS032-1 | 0.750 ppb |
2014-08-06 | DWS031-1 | 0.660 ppb |
2014-08-06 | DWS033-1 | ND |
2014-08-12 | 28234-1 | 0.630 ppb |
2014-08-19 | 28458-1 | 0.550 ppb |
2014-08-26 | 28543-1 | 0.640 ppb |
2014-08-27 | 28573-1 | ND |
2014-08-27 | 28573-2 | 0.750 ppb |
2014-08-27 | 28573-3 | 0.860 ppb |
2014-09-02 | 28651-1 | 0.780 ppb |
2014-09-08 | 28701-2 | 0.650 ppb |
2014-09-08 | 28701-1 | ND |
2014-09-10 | 28778-1 | 0.600 ppb |
2014-09-10 | 28777-1 | ND |
2014-09-12 | 28836-1 | 0.520 ppb |
2014-09-12 | 28835-1 | ND |
2014-09-15 | 28859-1 | 0.510 ppb |
2014-09-17 | 28911-1 | ND |
2014-09-18 | 28912-1 | 0.610 ppb |
2014-09-23 | 29005-1 | 0.740 ppb |
2014-10-07 | 29281-1 | 0.910 ppb |
2014-10-14 | 29393-1 | 1.01 ppb |
2014-10-21 | 29490-1 | 1.26 ppb |
2014-10-22 | 29541-1 | 1.33 ppb |
2014-10-23 | 29543-1 | 1.12 ppb |
2014-10-24 | 29585-1 | 1.47 ppb |
2014-10-27 | 29600-1 | 0.860 ppb |
2014-10-28 | 29598-1 | 0.820 ppb |
2014-10-28 | 29599-1 | 3.72 ppb |
2014-11-03 | 29679-1 | 0.900 ppb |
2014-11-10 | 29769-1 | 0.830 ppb |
2014-11-10 | 29768-1 | 3.20 ppb |
2014-11-14 | 29897-1 | ND |
2014-11-17 | 29909-1 | 0.890 ppb |
2014-11-19 | 29963-1 | 0.670 ppb |
2014-11-24 | 30038-1 | 0.750 ppb |
2014-12-02 | 30114-1 | 0.880 ppb |
2014-12-09 | 30243-1 | 0.820 ppb |
2014-12-16 | 30355-1 | 0.850 ppb |
2014-12-23 | 30475-1 | 1.000 ppb |
2014-12-30 | 30555-1 | 1.11 ppb |
2014-12-30 | 30556-1 | 0.970 ppb |
2015-01-06 | 30599-1 | 0.930 ppb |
2015-01-07 | 30666-1 | 1.02 ppb |
2015-01-13 | 30753-1 | 0.930 ppb |
2015-01-13 | 30754-1 | 0.890 ppb |
2015-01-15 | 30803-1 | 1.39 ppb |
2015-01-21 | 30882-1 | 0.950 ppb |
2015-01-26 | 30938-1 | 0.810 ppb |
2015-02-05 | 31104-1 | 1.05 ppb |
2015-02-10 | 31146-1 | 0.890 ppb |
2015-02-20 | 31324-1 | 0.880 ppb |
2015-02-24 | 31365-1 | 0.860 ppb |
2015-03-03 | 31492-1 | 0.980 ppb |
2015-03-05 | 31545-2 | 2.18 ppb |
2015-03-05 | 31545-1 | ND |
2015-03-10 | 31593-1 | 0.970 ppb |
2015-03-20 | 31784-1 | 1.04 ppb |
2015-03-24 | 31820-1 | 1.02 ppb |
2015-04-01 | 31924-1 | 1.05 ppb |
2015-04-07 | DWS111-1 | 1.04 ppb |
2015-04-14 | DWS194-1 | 1.14 ppb |
2015-04-16 | DWS240-1 | 1.14 ppb |
2015-04-21 | DWS310-1 | 1.13 ppb |
2015-04-28 | DWS318-1 | 1.01 ppb |
2015-05-06 | DWS466-1 | 1.09 ppb |
2015-05-13 | DWS534-1 | 1.15 ppb |
2015-05-19 | DWS539-1 | 1.000 ppb |
2015-05-26 | DWS627-1 | 1.10 ppb |
2015-06-02 | DWS686-1 | 1.19 ppb |
2015-06-09 | DWS776-1 | 0.940 ppb |
2015-06-16 | DWS862-1 | 0.950 ppb |
2015-06-20 | DWS982-1 | 0.900 ppb |
2015-06-23 | DWS921-1 | 0.920 ppb |
2015-07-07 | DWS1065-1 | 0.900 ppb |
2015-07-14 | DWSC24-1 | 0.910 ppb |
2015-07-21 | DWSC67-1 | 0.860 ppb |
2015-07-21 | DWSC66-1 | 0.870 ppb |
2015-07-22 | DWSC72-1 | 0.900 ppb |
2015-07-28 | DWSC98-1 | 0.910 ppb |
2015-08-10 | DWSC166-1 | 0.980 ppb |
2015-08-18 | DWSC226-1 | 1.05 ppb |
2015-08-24 | DWSC264-1 | 0.970 ppb |
2015-08-25 | DWSC285-1 | 1.18 ppb |
2015-09-01 | DWSC303-1 | 1.14 ppb |
2015-09-08 | DWSC338-1 | 1.03 ppb |
2015-09-15 | DWSC383-1 | 0.850 ppb |
2015-10-06 | DWSC535-1 | 1.12 ppb |
2015-10-09 | DWSC574-1 | 1.04 ppb |
2015-10-13 | DWSC579-1 | 0.970 ppb |
2015-10-20 | DWSC628-1 | 1.04 ppb |
2015-10-22 | DWSC658-1 | 1.30 ppb |
2015-10-23 | DWSC681-1 | 1.37 ppb |
2015-10-27 | DWSC667-1 | 1.36 ppb |
2015-10-28 | DWSC682-1 | 1.30 ppb |
2015-10-30 | 5110004-01 | 0.913 ppb |
2015-11-04 | 5110115-01 | 1.14 ppb |
2015-11-06 | 5110210-01 | 1.19 ppb |
2015-11-10 | 5110310-01 | 1.10 ppb |
2015-11-11 | 5110403-01 | 1.17 ppb |
2015-11-12 | 5110418-01 | 1.12 ppb |
2015-11-16 | 5110527-01 | 0.890 ppb |
2015-11-24 | 5110715-01 | 1.15 ppb |
2015-12-01 | 5120004-01 | 1.02 ppb |
2015-12-05 | 5120195-01 | 0.932 ppb |
2015-12-08 | 5120226-01 | 1.06 ppb |
2015-12-15 | 5120439-01 | 1.20 ppb |
2015-12-22 | 5120663-01 | 1.26 ppb |
2015-12-28 | 5120771-01 | 1.14 ppb |
2015-12-29 | 5120772-01 | 0.990 ppb |
2016-01-05 | 6010029-01 | 0.989 ppb |
2016-01-13 | 6010300-01 | 1.14 ppb |
2016-01-14 | 6010330-01 | 1.10 ppb |
2016-01-15 | 6010434-01 | 1.08 ppb |
2016-01-19 | 6010435-01 | 1.32 ppb |
2016-01-20 | 6010477-01 | 1.13 ppb |
2016-01-26 | 6010614-01 | 2.18 ppb |
2016-01-26 | 6010640-01 | 1.18 ppb |
2016-01-27 | 6010639-01 | 1.17 ppb |
2016-01-28 | 6010673-01 | 0.992 ppb |
2016-01-29 | 6020018-01 | 1.23 ppb |
2016-02-02 | 6020047-01 | 1.34 ppb |
2016-02-04 | 6020138-01 | 0.968 ppb |
2016-02-09 | 6020259-01 | 1.13 ppb |
2016-02-10 | 6020342-01 | 1.05 ppb |
2016-02-19 | 6020522-01 | 1.27 ppb |
2016-02-23 | 6020588-01 | 0.979 ppb |
2016-03-01 | 6030009-01 | 1.39 ppb |
2016-03-04 | 6030195-01 | 1.39 ppb |
2016-03-08 | 6030253-01 | 1.13 ppb |
2016-03-15 | 6030466-01 | 1.18 ppb |
2016-03-23 | 6030717-01 | 1.39 ppb |
2016-03-29 | 6030898-01 | 1.20 ppb |
2016-04-02 | 6040051-01 | 1.09 ppb |
2016-04-03 | 6040052-01 | 1.24 ppb |
2016-04-04 | 6040064-01 | 1.30 ppb |
2016-04-05 | 6040126-01 | 1.40 ppb |
2016-04-07 | 6040204-01 | 1.37 ppb |
2016-04-08 | 6040290-01 | 1.25 ppb |
2016-04-08 | 6040310-01 | 1.64 ppb |
2016-04-09 | 6040357-01 | 0.982 ppb |
2016-04-10 | 6040356-01 | 0.691 ppb |
2016-04-10 | 6040355-01 | 0.827 ppb |
2016-04-11 | 6040365-01 | 0.743 ppb |
2016-04-12 | 6040394-01 | 0.776 ppb |
2016-04-14 | 6040503-01 | 0.855 ppb |
2016-04-19 | 6040662-01 | 0.817 ppb |
2016-04-26 | 6040844-01 | 0.788 ppb |
2016-05-03 | 6050054-01 | 1.08 ppb |
2016-05-10 | 6050327-01 | 1.20 ppb |
2016-05-16 | 6050537-01 | 1.05 ppb |
2016-05-31 | 6050905-01 | 1.22 ppb |
2016-06-06 | 6060253-01 | 0.916 ppb |
2016-06-14 | 6060417-01 | 0.698 ppb |
2016-06-21 | 6060623-01 | 0.958 ppb |
2016-06-24 | 6060771-01 | 0.965 ppb |
2016-06-28 | 6060838-01 | 0.810 ppb |
2016-07-05 | 6070046-01 | 0.876 ppb |
2016-07-13 | 6070327-01 | 1.18 ppb |
2016-07-19 | 6070486-01 | 0.916 ppb |
2016-08-02 | 6080055-01 | 0.954 ppb |
2016-08-05 | 6080198-01 | 0.982 ppb |
2016-08-05 | 6080197-01 | 0.908 ppb |
2016-08-08 | 6080240-01 | 0.900 ppb |
2016-08-09 | 6080281-01 | 0.925 ppb |
2016-08-09 | 6080299-01 | 0.974 ppb |
2016-08-10 | 6080344-01 | 1.03 ppb |
2016-08-12 | 6080487-01 | 0.849 ppb |
2016-08-16 | 6080528-01 | 0.880 ppb |
2016-08-17 | 6080621-01 | 0.892 ppb |
2016-08-18 | 6080665-01 | 0.954 ppb |
2016-08-22 | 6080703-01 | 0.932 ppb |
2016-08-23 | 6080745-01 | 0.958 ppb |
2016-08-25 | 6080841-01 | 0.796 ppb |
2016-08-26 | 6080913-01 | 0.925 ppb |
2016-08-31 | 6080996-01 | 1.05 ppb |
2016-08-31 | 6080980-01 | 1.04 ppb |
2016-09-01 | 6090011-01 | 0.930 ppb |
2016-09-02 | 6090073-01 | 1.12 ppb |
2016-09-06 | 6090143-01 | 0.911 ppb |
2016-09-07 | 6090140-01 | 0.904 ppb |
2016-09-12 | 6090296-01 | 0.654 ppb |
2016-09-13 | 6090312-01 | 0.691 ppb |
2016-09-14 | 6090375-01 | 0.722 ppb |
2016-09-16 | 6090445-01 | 0.774 ppb |
2016-09-20 | 6090538-01 | 0.851 ppb |
2016-09-29 | 6090786-01 | 0.579 ppb |
2016-09-30 | 6090820-01 | 0.467 ppb |
2016-10-02 | 6100019-01 | 0.698 ppb |
2016-10-04 | 6100090-01 | 0.494 ppb |
2016-10-04 | 6100044-01 | 0.850 ppb |
2016-10-11 | 6100292-01 | 0.434 ppb |
2016-10-13 | 6100397-01 | 0.646 ppb |
2016-10-13 | 6100396-01 | 0.805 ppb |
2016-10-14 | 6100423-01 | 0.405 ppb |
2016-10-17 | 6100458-01 | 0.362 ppb |
2016-10-20 | 6100579-01 | ND |
2016-10-26 | 6100762-01 | ND |
2016-11-01 | 6110001-01 | ND |
2016-11-07 | 6110205-01 | ND |
2016-11-15 | 6110447-01 | ND |
2016-11-22 | 6110704-01 | ND |
2016-12-01 | 6120005-01 | ND |
2016-12-07 | 6120217-01 | ND |
2016-12-13 | 6120413-01 | ND |
2017-01-03 | 7010004-01 | ND |
2017-01-04 | 7010035-01 | ND |
2017-01-25 | 7010597-01 | ND |
2017-02-08 | 7020222-01 | ND |
2017-02-22 | 7020604-01 | ND |
2017-03-07 | 7030170-01 | ND |
2017-03-21 | 7030492-01 | ND |
2017-04-04 | 7040044-01 | ND |
2017-04-19 | 7040528-01 | ND |
2017-05-02 | 7050055-01 | ND |
2017-05-24 | 7050850-01 | ND |
2017-06-07 | 7060198-01 | ND |
2017-07-12 | 7070319-01 | ND |
2017-07-18 | 7070474-01 | ND |
2017-08-10 | 7080399-01 | ND |
2017-08-23 | 7080831-01 | ND |
2017-09-06 | 7090097-01 | ND |
2017-09-20 | 7090610-01 | ND |
2017-10-03 | 7100033-01 | ND |
2017-10-25 | 7100771-01 | ND |
2017-11-07 | 7110292-01 | ND |
2017-11-28 | 7110898-01 | ND |
2017-12-05 | 7120104-01 | ND |
2017-12-20 | 7120618-01 | ND |
2018-01-05 | 8010087-01 | ND |
2018-01-23 | 8010580-01 | ND |
2018-02-20 | 8020601-01 | ND |
2018-03-20 | 8030594-01 | ND |
2018-04-03 | 8040026-01 | ND |
2018-04-24 | 8040844-01 | ND |
2018-05-08 | 8050333-01 | ND |
2018-05-22 | 8050940-01 | ND |
2018-06-11 | 8060408-01 | ND |
2018-07-03 | 8070076-01 | ND |
2018-07-24 | 8070946-01 | ND |
2018-08-07 | 8080232-01 | ND |
2018-08-28 | 8081162-01 | ND |
2018-09-04 | 8090030-01 | ND |
2018-09-18 | 8090645-01 | ND |
2018-10-09 | 8100388-01 | ND |
2018-10-25 | 8101080-01 | ND |
2018-11-08 | 8110318-01 | ND |
2018-11-28 | 8111004-02 | ND |
2018-11-28 | 8111004-01 | ND |
2018-12-12 | 8120388-01 | ND |
2018-12-19 | 8120656-01 | ND |
2019-01-23 | 9010787-01 | ND |
2019-02-05 | 9020077-01 | ND |
2019-02-20 | 9020715-01 | ND |
2019-03-12 | 9030419-01 | ND |
2019-03-26 | 9031011-01 | ND |
2019-04-04 | 9040248-01 | ND |
2019-04-18 | 9040829-01 | ND |
2019-05-15 | 9050674-01 | ND |
2019-06-11 | 9060360-01 | ND |
2019-06-28 | 9061186-01 | ND |
2019-07-17 | 9070836-01 | ND |
2019-08-06 | 9080180-01 | ND |
2019-08-28 | 9081407-01 | ND |
2019-09-10 | 9090396-01 | ND |
2019-09-19 | 9090873-01 | ND |
2019-10-09 | 9100436-01 | ND |
2019-10-22 | 9101022-01 | ND |
2019-12-11 | 9120440-01 | ND |