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EWG's Tap Water Database — 2019 UPDATE

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Tetrachloroethylene (perchloroethylene)

Sacramento Suburban Water District

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.

 

450

Samples

0

Samples exceeding legal limit (MCL)

117

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.378 ppb5417ND - 1.70 ppb
20130.297 ppb8220ND - 1.80 ppb
20140.305 ppb9624ND - 2.10 ppb
20150.380 ppb6018ND - 2.20 ppb
20160.404 ppb7421ND - 2.70 ppb
20170.332 ppb8417ND - 2.30 ppb

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
2012-01-095810-107-1400ND
2012-01-115810-088-1225ND
2012-01-115810-240-1330ND
2012-01-125810-075-12001.000 ppb
2012-01-125810-081-11151.60 ppb
2012-01-255810-104-13351.30 ppb
2012-01-265810-105-13301.10 ppb
2012-04-115810-240-1330ND
2012-04-165810-104-13001.30 ppb
2012-04-165810-105-13051.30 ppb
2012-04-165810-106-1310ND
2012-05-075810-075-13450.830 ppb
2012-05-075810-081-12201.60 ppb
2012-05-075810-107-1405ND
2012-06-255810-067-1340ND
2012-07-025810-240-1310ND
2012-07-055810-081-12101.70 ppb
2012-07-055810-098-1140ND
2012-07-095810-001-1125ND
2012-07-095810-011-1100ND
2012-07-125810-080-1010ND
2012-07-125810-085-1035ND
2012-07-125810-106-1215ND
2012-07-165810-018-1410ND
2012-07-165810-075-14450.970 ppb
2012-07-165810-088-1430ND
2012-07-165810-102-1215ND
2012-07-195810-061-1240ND
2012-07-195810-065-1215ND
2012-07-195810-066-1350ND
2012-07-255810-007-1220ND
2012-07-255810-013-1030ND
2012-07-255810-015-1015ND
2012-07-255810-052-0930ND
2012-07-265810-087-1320ND
2012-08-135810-027-1330ND
2012-08-205810-020-1315ND
2012-08-205810-105-12301.10 ppb
2012-08-285810-087-1040ND
2012-08-285810-136-1115ND
2012-08-285810-137-1125ND
2012-08-285810-142-0950ND
2012-09-065810-111-0520ND
2012-09-065810-133-0555ND
2012-10-015810-104-10551.30 ppb
2012-10-015810-105-1100ND
2012-10-015810-106-11051.000 ppb
2012-10-035810-240-0950ND
2012-10-085810-020-10401.000 ppb
2012-10-085810-075-12051.20 ppb
2012-10-085810-081-14151.60 ppb
2012-10-085810-088-1145ND
2012-10-085810-107-1220ND
2012-11-285810-246-10550.510 ppb
2013-01-105810-240-1140ND
2013-01-145810-020-00000.930 ppb
2013-01-165810-088-1330ND
2013-01-235810-075-09001.30 ppb
2013-01-235810-104-09201.10 ppb
2013-01-235810-106-0915ND
2013-01-245810-105-09551.000 ppb
2013-01-245810-107-1335ND
2013-01-285810-081-14001.40 ppb
2013-01-305810-246-1505ND
2013-04-015810-020-11300.920 ppb
2013-04-025810-104-13201.30 ppb
2013-04-025810-105-13251.10 ppb
2013-04-035810-081-11451.60 ppb
2013-04-035810-088-1120ND
2013-04-185810-016-1400ND
2013-04-225810-075-10001.10 ppb
2013-04-225810-106-0940ND
2013-04-295810-107-0925ND
2013-05-165810-246-1015ND
2013-07-025810-013-1330ND
2013-07-025810-052-1300ND
2013-07-025810-065-1400ND
2013-07-085810-075-11151.000 ppb
2013-07-085810-096-1200ND
2013-07-085810-098-0930ND
2013-07-085810-104-10151.10 ppb
2013-07-085810-105-10250.870 ppb
2013-07-085810-106-1035ND
2013-07-085810-144-0900ND
2013-07-115810-078-1045ND
2013-07-115810-085-1300ND
2013-07-115810-088-1015ND
2013-07-115810-107-0940ND
2013-07-115810-133-1110ND
2013-07-115810-146-1145ND
2013-07-165810-015-0945ND
2013-07-165810-061-0915ND
2013-07-165810-080-1100ND
2013-07-165810-082-1030ND
2013-07-165810-083-0830ND
2013-07-165810-101-1130ND
2013-07-165810-145-1200ND
2013-07-175810-007-1215ND
2013-07-175810-072-1240ND
2013-07-175810-135-1320ND
2013-07-245810-076-1440ND
2013-07-245810-077-1145ND
2013-07-245810-079-1020ND
2013-07-245810-081-10451.20 ppb
2013-07-245810-087-1410ND
2013-07-245810-089-1220ND
2013-07-245810-094-1000ND
2013-07-245810-102-1340ND
2013-07-255810-020-1120ND
2013-07-255810-066-0915ND
2013-07-255810-097-1250ND
2013-07-255810-130-1230ND
2013-07-255810-246-1050ND
2013-07-295810-001-0910ND
2013-07-295810-092-0925ND
2013-07-295810-111-0525ND
2013-07-295810-127-1215ND
2013-07-295810-129-1035ND
2013-07-295810-136-1300ND
2013-07-295810-137-1130ND
2013-07-295810-142-0958ND
2013-08-015810-027-1023ND
2013-08-075810-240-1210ND
2013-08-285810-081-13301.60 ppb
2013-09-195810-018-1050ND
2013-09-265810-244-1255ND
2013-10-095810-104-10151.50 ppb
2013-10-095810-105-10201.10 ppb
2013-10-105810-020-09450.810 ppb
2013-10-145810-081-12301.60 ppb
2013-10-145810-088-1200ND
2013-10-165810-107-1130ND
2013-10-165810-246-1000ND
2013-10-215810-075-10401.80 ppb
2013-11-135810-103-1120ND
2013-12-165810-011-1020ND
2014-01-085810-075-13052.10 ppb
2014-01-085810-104-10501.40 ppb
2014-01-085810-105-10551.10 ppb
2014-01-095810-081-12201.50 ppb
2014-01-155810-020-1007ND
2014-01-275810-107-1235ND
2014-01-275810-246-10050.860 ppb
2014-03-115810-246-12200.660 ppb
2014-04-105810-104-09301.30 ppb
2014-04-105810-105-09301.000 ppb
2014-04-295810-020-0848ND
2014-04-295810-075-12302.00 ppb
2014-04-295810-081-11301.20 ppb
2014-04-295810-107-1040ND
2014-04-295810-246-0930ND
2014-05-085810-244-1000ND
2014-06-195810-004-1105ND
2014-06-195810-061-0950ND
2014-06-195810-062-1000ND
2014-06-195810-064-1120ND
2014-07-015810-034-0920ND
2014-07-085810-015-1000ND
2014-07-085810-042-1030ND
2014-07-095810-007-1325ND
2014-07-095810-052-1130ND
2014-07-105810-033-1150ND
2014-07-155810-018-1030ND
2014-07-165810-035-1100ND
2014-07-165810-066-0915ND
2014-07-165810-074-1155ND
2014-07-175810-019-1150ND
2014-07-175810-051-1100ND
2014-07-175810-054-1300ND
2014-07-175810-071-1020ND
2014-07-235810-013-1230ND
2014-07-235810-083-1005ND
2014-07-235810-089-1205ND
2014-07-235810-145-1130ND
2014-07-245810-065-11150.820 ppb
2014-07-295810-032-1130ND
2014-08-115810-087-1115ND
2014-08-115810-088-1200ND
2014-08-135810-020-11300.820 ppb
2014-08-185810-246-10300.710 ppb
2014-08-195810-080-1145ND
2014-08-195810-081-13001.30 ppb
2014-08-195810-081-13041.30 ppb
2014-08-195810-085-1115ND
2014-08-195810-102-1030ND
2014-08-195810-240-1230ND
2014-08-205810-075-09301.60 ppb
2014-08-205810-098-1110ND
2014-08-205810-104-09551.30 ppb
2014-08-205810-105-09550.880 ppb
2014-08-205810-107-1045ND
2014-08-215810-010-1115ND
2014-08-215810-012-1200ND
2014-08-215810-028-1345ND
2014-08-215810-069-1030ND
2014-08-215810-244-0945ND
2014-08-265810-106-1015ND
2014-08-265810-111-1025ND
2014-08-275810-017-1045ND
2014-08-285810-030-1130ND
2014-08-285810-073-0940ND
2014-09-045810-016-0930ND
2014-09-105810-078-1130ND
2014-09-105810-133-1145ND
2014-09-105810-142-1245ND
2014-09-165810-021-1200ND
2014-09-165810-072-1045ND
2014-09-175810-056-1040ND
2014-09-175810-070-0940ND
2014-09-245810-001-0945ND
2014-09-245810-002-1120ND
2014-09-295810-065-0945ND
2014-10-015810-029-1030ND
2014-10-015810-067-0945ND
2014-10-015810-088-0934ND
2014-10-015810-246-10510.700 ppb
2014-10-065810-020-09390.680 ppb
2014-10-075810-081-13401.40 ppb
2014-10-085810-022-0930ND
2014-10-085810-027-1120ND
2014-10-085810-055-1020ND
2014-10-085810-135-1210ND
2014-10-095810-025-1145ND
2014-10-155810-244-0930ND
2014-10-215810-075-11002.10 ppb
2014-10-215810-104-11301.60 ppb
2014-10-215810-105-11300.970 ppb
2014-10-215810-107-1230ND
2014-10-225810-136-1120ND
2014-10-225810-137-1230ND
2014-10-235810-106-0930ND
2014-12-105810-011-1315ND
2015-01-075810-081-10501.20 ppb
2015-01-085810-020-0955ND
2015-01-145810-088-0957ND
2015-01-145810-246-0920ND
2015-01-155810-104-12101.10 ppb
2015-01-155810-105-12150.800 ppb
2015-01-155810-244-1140ND
2015-01-225810-075-10001.90 ppb
2015-03-305810-065-1003ND
2015-04-025810-020-1308ND
2015-04-065810-088-1216ND
2015-04-065810-246-1025ND
2015-04-205810-075-09252.00 ppb
2015-04-205810-104-11001.40 ppb
2015-04-205810-105-11100.780 ppb
2015-04-215810-081-11251.20 ppb
2015-05-185810-065-0942ND
2015-07-095810-075-09301.80 ppb
2015-07-095810-098-1100ND
2015-07-095810-104-10151.30 ppb
2015-07-095810-105-10150.810 ppb
2015-07-095810-106-1030ND
2015-07-095810-107-1140ND
2015-07-135810-001-1135ND
2015-07-135810-020-0930ND
2015-07-135810-027-1235ND
2015-07-145810-081-11301.30 ppb
2015-07-145810-083-1410ND
2015-07-145810-087-1105ND
2015-07-145810-088-1005ND
2015-07-145810-089-1200ND
2015-07-145810-246-13200.560 ppb
2015-07-215810-111-1250ND
2015-07-225810-065-1150ND
2015-08-065810-066-1200ND
2015-08-125810-011-1100ND
2015-08-125810-015-0910ND
2015-08-125810-018-0955ND
2015-08-125810-052-0915ND
2015-08-135810-013-1005ND
2015-08-175810-061-1136ND
2015-08-185810-078-1205ND
2015-08-185810-142-1325ND
2015-08-185810-145-1120ND
2015-08-195810-007-1344ND
2015-09-145810-080-0850ND
2015-09-145810-240-0935ND
2015-09-145810-244-1040ND
2015-09-155810-085-0905ND
2015-09-155810-102-1015ND
2015-09-175810-135-1315ND
2015-10-085810-075-09302.20 ppb
2015-10-085810-104-10201.60 ppb
2015-10-085810-105-10251.10 ppb
2015-10-155810-020-1220ND
2015-10-195810-088-0920ND
2015-10-195810-246-09000.520 ppb
2015-10-205810-081-12001.20 ppb
2015-10-265810-065-0925ND
2015-12-305810-133-0900ND
2016-01-115810-081-14151.000 ppb
2016-01-135810-020-1050ND
2016-01-135810-246-09000.790 ppb
2016-01-145810-065-1030ND
2016-01-145810-088-1200ND
2016-01-145810-104-10351.50 ppb
2016-01-145810-105-10401.10 ppb
2016-01-265810-075-11002.70 ppb
2016-01-285810-081-10301.10 ppb
2016-02-025810-088-1315ND
2016-02-025810-088-1415ND
2016-02-085810-089-0950ND
2016-03-095810-097-0940ND
2016-04-045810-075-10052.20 ppb
2016-04-045810-104-13301.20 ppb
2016-04-045810-105-14151.40 ppb
2016-04-135810-065-1000ND
2016-04-135810-246-1250ND
2016-04-275810-081-09450.860 ppb
2016-06-135810-085-1300ND
2016-06-135810-102-1045ND
2016-06-135810-244-1220ND
2016-06-235810-076-1345ND
2016-07-075810-011-1155ND
2016-07-075810-013-1240ND
2016-07-075810-015-0945ND
2016-07-075810-018-0940ND
2016-07-075810-101-1200ND
2016-07-075810-104-10001.90 ppb
2016-07-075810-105-11301.50 ppb
2016-07-115810-001-1115ND
2016-07-115810-075-10002.50 ppb
2016-07-115810-077-0940ND
2016-07-115810-083-11500.810 ppb
2016-07-115810-142-1225ND
2016-07-115810-144-1115ND
2016-07-115810-145-0915ND
2016-07-125810-027-1020ND
2016-07-125810-087-1210ND
2016-07-125810-094-1010ND
2016-07-125810-098-1000ND
2016-07-135810-061-1150ND
2016-07-135810-066-1015ND
2016-07-135810-096-1130ND
2016-07-135810-111-1130ND
2016-07-135810-240-1140ND
2016-07-135810-246-09100.540 ppb
2016-07-145810-107-1115ND
2016-07-195810-078-1415ND
2016-07-195810-139-1345ND
2016-07-205810-007-1300ND
2016-07-205810-092-1050ND
2016-07-205810-133-1100ND
2016-07-215810-082-1240ND
2016-07-265810-052-0915ND
2016-07-275810-018-0900ND
2016-07-275810-018-1110ND
2016-08-025810-020-12400.970 ppb
2016-08-095810-248-1358ND
2016-08-105810-065-1100ND
2016-08-165810-083-1336ND
2016-08-235810-083-1635ND
2016-09-285810-146-1250ND
2016-10-065810-018-0950ND
2016-10-115810-020-1140ND
2016-10-115810-065-1405ND
2016-10-115810-075-11301.90 ppb
2016-10-125810-083-14250.760 ppb
2016-10-125810-246-12250.900 ppb
2016-10-145810-104-12442.10 ppb
2016-10-145810-105-12402.20 ppb
2016-10-265810-248-1400ND
2016-11-075810-135-1025ND
2016-11-141233-250-1200ND
2017-01-095810-018-1125ND
2017-01-095810-020-1000ND
2017-01-175810-075-09452.30 ppb
2017-01-185810-065-1000ND
2017-01-255810-248-1420ND
2017-01-265810-104-10201.90 ppb
2017-01-265810-105-10251.80 ppb
2017-01-315810-246-1312ND
2017-02-015810-083-1255ND
2017-04-045810-246-1205ND
2017-04-055810-065-1015ND
2017-04-125810-075-09551.80 ppb
2017-04-175810-248-1320ND
2017-04-255810-020-1155ND
2017-04-255810-104-11101.50 ppb
2017-04-255810-105-11201.50 ppb
2017-04-265810-083-1330ND
2017-07-055810-075-10002.10 ppb
2017-07-055810-104-11301.40 ppb
2017-07-055810-105-11401.80 ppb
2017-07-125810-065-1020ND
2017-07-135810-020-11471.20 ppb
2017-07-175810-083-08480.680 ppb
2017-07-175810-246-0958ND
2017-07-185810-002-1115ND
2017-09-059590-001-1100ND
2017-09-059590-062-0845ND
2017-09-059590-085-1030ND
2017-09-059590-244-1050ND
2017-09-069590-080-1050ND
2017-09-069590-098-1020ND
2017-09-069590-107-1145ND
2017-09-069590-240-1200ND
2017-09-079590-073-1345ND
2017-09-119590-022-1115ND
2017-09-119590-034-1330ND
2017-09-119590-051-1100ND
2017-09-119590-052-1000ND
2017-09-129590-010-0930ND
2017-09-129590-021-1115ND
2017-09-129590-042-1230ND
2017-09-129590-064-1145ND
2017-09-129590-066-1030ND
2017-09-129590-070-1200ND
2017-09-129590-072-1330ND
2017-09-129590-081-09401.20 ppb
2017-09-129590-087-1300ND
2017-09-139590-054-1335ND
2017-09-139590-056-1045ND
2017-09-139590-078-0927ND
2017-09-139590-145-1019ND
2017-09-149590-011-0900ND
2017-09-149590-071-0945ND
2017-09-199590-015-1330ND
2017-09-199590-018-1300ND
2017-09-199590-020-09001.20 ppb
2017-09-199590-025-1120ND
2017-09-199590-032-1100ND
2017-09-219590-065-1145ND
2017-09-259590-019-1030ND
2017-09-269590-013-0900ND
2017-09-269590-030-1130ND
2017-09-269590-061-1100ND
2017-09-269590-102-0900ND
2017-09-269590-142-1251ND
2017-09-279590-007-1235ND
2017-09-279590-027-1200ND
2017-09-279590-111-1100ND
2017-09-289590-035-0920ND
2017-09-289590-069-1315ND
2017-10-039590-029-0945ND
2017-10-059590-020-1025ND
2017-10-069590-074-0937ND
2017-10-119590-081-13401.30 ppb
2017-10-119590-083-0921ND
2017-10-129590-065-1110ND
2017-10-129590-246-1158ND
2017-10-259590-104-10152.20 ppb
2017-10-259590-105-12002.00 ppb
2017-11-079590-089-1040ND
2017-11-209590-075-10152.00 ppb
2017-12-129590-012-1140ND
2017-12-139590-055-1320ND
2017-12-199590-065-0955ND