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EWG's Tap Water Database — 2019 UPDATE

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Tetrachloroethylene (perchloroethylene)

Sun Valley Gid

NOTE: Sun Valley Gid purchases water from Truckee Meadows Water Authority which is required to test for tetrachloroethylene (perchloroethylene). Sample information shown below was taken by Truckee Meadows Water Authority.

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.

 

224

Samples

0

Samples exceeding legal limit (MCL)

27

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.383 ppb264ND - 4.21 ppb
20130.0764 ppb362ND - 1.49 ppb
20140.163 ppb324ND - 2.00 ppb
20150.406 ppb3610ND - 4.00 ppb
20160.114 ppb433ND - 2.40 ppb
20170.00164 ppb515ND - 2.20 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

NOTE: Sun Valley Gid purchases water from Truckee Meadows Water Authority which is required to test for tetrachloroethylene (perchloroethylene). Sample information shown below was taken by Truckee Meadows Water Authority.

Date Lab ID Result
2012-04-020412-01VND
2012-04-110412-06VND
2012-04-230412-19VND
2012-05-080512-02VND
2012-05-080512-03VND
2012-05-090512-07VND
2012-05-150512-33VND
2012-05-150512-32V2.68 ppb
2012-05-150512-31VND
2012-05-160512-36VND
2012-05-160512-35VND
2012-05-210512-43VND
2012-06-050612-05V4.21 ppb
2012-06-050612-06V1.08 ppb
2012-06-060612-09VND
2012-06-260612-32VND
2012-06-260612-33VND
2012-07-110712-10ND
2012-08-080812-01VND
2012-08-080812-02VND
2012-08-080812-10VND
2012-08-080812-09VND
2012-08-090812-08VND
2012-08-150812-30VND
2012-09-200912-22V2.00 ppb
2012-09-240912-24VND
2013-03-270313-17ND
2013-04-250413-25ND
2013-04-250413-25-VND
2013-04-250413-24ND
2013-05-070513-12-VND
2013-05-070513-12-VOCND
2013-05-070513-09ND
2013-05-070513-09-VND
2013-05-070513-11-VOC1.49 ppb
2013-05-240513-44ND
2013-05-240513-44VND
2013-05-240513-45ND
2013-05-240513-45VND
2013-05-240513-46ND
2013-05-240513-46VND
2013-05-240513-46-VND
2013-06-110613-72ND
2013-06-110613-72-VND
2013-06-180613-20-VOCND
2013-06-190613-23-VOCND
2013-06-190613-24ND
2013-06-190613-22VND
2013-06-190613-21VND
2013-06-190613-25ND
2013-06-190613-25-VND
2013-06-250613-54VND
2013-06-250613-68-VND
2013-07-230713-141.26 ppb
2013-07-240713-26ND
2013-08-270813-33ND
2013-08-290813-38ND
2013-09-050913-01-VOCND
2013-09-050913-02-VOCND
2013-10-151013-18ND
2013-10-151013-17ND
2013-10-241013-19ND
2014-04-170414-11-VND
2014-04-220414-13-VND
2014-04-220414-12-VND
2014-04-22EN2014-00001942ND
2014-04-220414-16-VND
2014-04-230414-17-VND
2014-04-23EN2014-00001945ND
2014-04-24EN2014-00001944ND
2014-04-24EN2014-00001943ND
2014-06-090614-06-VND
2014-06-090614-07-VND
2014-06-170614-11-VND
2014-06-170614-10-VND
2014-06-170614-09-VND
2014-06-170614-12-VND
2014-06-170614-13-VND
2014-06-170614-14-VND
2014-06-240614-28ND
2014-06-240614-26-VND
2014-07-230714-161.60 ppb
2014-07-240714-18ND
2014-07-290714-330.600 ppb
2014-07-290714-34ND
2014-07-290714-35ND
2014-07-300714-47ND
2014-07-300714-46ND
2014-09-230914-201-VND
2014-10-161014-23-VND
2014-10-211014-522.00 ppb
2014-10-211014-53ND
2014-10-211014-51ND
2014-10-291014-721.000 ppb
2015-06-081506017-01ND
2015-06-081506018-01ND
2015-06-111506027-VOCND
2015-06-171506035-01ND
2015-06-171506036-01ND
2015-06-171506037-01ND
2015-06-171506038-01ND
2015-06-181506049-01ND
2015-06-181506047-01ND
2015-06-181506045-010.500 ppb
2015-06-181506044-01ND
2015-06-181506043-01ND
2015-06-181506054-01ND
2015-06-231506055-012.10 ppb
2015-06-231506056-01ND
2015-06-231506046-01ND
2015-06-231506061-01ND
2015-08-191508058-NSPND
2015-08-191508057-NSPND
2015-08-241508060-NSPND
2015-08-251508066-NSPND
2015-08-251508064-NSPND
2015-08-251508068-NSP2.00 ppb
2015-08-251508062-NSP0.900 ppb
2015-08-261508069-NSPND
2015-08-261508071-NSP0.700 ppb
2015-08-261508072-NSP0.800 ppb
2015-10-081510011-01NSHL4.00 ppb
2015-10-081510012-01NSHL1.000 ppb
2015-10-081510009-01NSHLND
2015-10-081510008-01NSHLND
2015-10-081510016-01NSHLND
2015-10-081510015-01NSHLND
2015-10-081510017-01NSHL0.800 ppb
2015-10-081510014-01NSHLND
2015-10-081510013-01NSHL1.80 ppb
2016-02-241602019-01NSHLND
2016-03-011603002-01NSHLND
2016-05-311605028-01NSHLND
2016-05-311605025-01NSHLND
2016-05-311605026-01NSHLND
2016-05-311605027-01NSHLND
2016-06-011606001-01NSHLND
2016-06-061606010-01NSHLND
2016-06-091606027-01NSHLND
2016-06-281606059-01NSHLND
2016-06-281606052-01NSHLND
2016-07-191607022-01NSHLND
2016-07-191607021-01NSHLND
2016-07-191607023-01NSHLND
2016-07-191607024-01NSHLND
2016-07-201607033-01NSHLND
2016-07-201607035-01NSHLND
2016-07-201607038-01NSHLND
2016-08-041608010-01EURND
2016-08-041608011-01EURND
2016-08-041608012-01EURND
2016-08-041608014-01EURND
2016-08-151608022-01NSHLND
2016-08-151608023-01NSHLND
2016-08-241608035-01EURND
2016-08-241608034-01NSHLND
2016-08-241608033-01EURND
2016-08-241608037-01NSHLND
2016-08-251608036-01EUR1.60 ppb
2016-08-251608039-01EURND
2016-08-301608047-01EURND
2016-08-301608046-01EURND
2016-09-141609016-01EURND
2016-09-201608035-02WEKND
2016-09-221609024-01NSHLND
2016-10-111610023-01NSHLND
2016-10-111610010-01NSHLND
2016-10-121610014-01NSHL0.900 ppb
2016-10-131610017-01NSHLND
2016-10-171610032-01NSHLND
2016-10-171610029-01NSHLND
2016-10-181610033-01NSHLND
2016-10-181610027-01NSHL2.40 ppb
2017-01-111701006-01NSHLND
2017-02-071702004-01NSHLND
2017-03-081703009-01NSHLND
2017-03-081703008-01NSHLND
2017-03-081703011-01NSHLND
2017-05-021705003-01NSHLND
2017-05-021705004-01NSHLND
2017-05-021705005-01NSHLND
2017-05-031705010-01NSHLND
2017-05-031705009-01NSHLND
2017-05-151705022-01NSHLND
2017-05-151705023-01NSHLND
2017-05-151705025-01NSHLND
2017-05-151705024-01NSHLND
2017-05-171706031-01NSHL1.10 ppb
2017-05-251705042-01NSHLND
2017-05-251705041-01NSHLND
2017-06-010.00164 ppb*
2017-07-111707003-01NSHLND
2017-07-111707002-01NSHLND
2017-07-111707005-01NSHLND
2017-07-111707004-01NSHLND
2017-07-121707010-01NSHLND
2017-07-121707012-01NSHLND
2017-07-121707008-01NSHLND
2017-07-131707043-01NSHL2.20 ppb
2017-07-181707020-01NSHLND
2017-07-181707021-01NSHLND
2017-07-181707022-01NSHLND
2017-07-181707024-01NSHLND
2017-07-191707027-01NSHLND
2017-08-161708013-01NSHLND
2017-08-161708014-01NSHLND
2017-08-291708026-01NSHLND
2017-08-291708028-01NSHL0.500 ppb
2017-08-291708027-01NSHLND
2017-08-291708029-01NSHLND
2017-08-291708030-01NSHLND
2017-08-291708025-01NSHLND
2017-10-041710002-01NSHLND
2017-10-041710004-01NSHLND
2017-10-101710014-01NSHLND
2017-10-101710017-01NSHLND
2017-10-101710018-01NSHLND
2017-10-251710034-01NSHLND
2017-10-251710035-01NSHL0.600 ppb
2017-10-301710047-01NSHLND
2017-10-311710054-01NSHLND
2017-10-311710056-01NSHLND
2017-10-311710049-01NSHLND
2017-11-021712003-01NSHLND

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