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EWG's Tap Water Database — 2021 UPDATE

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Tetrachloroethylene (perchloroethylene)

Jericho 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.

MORE ABOUT THIS CONTAMINANT

 

417

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0886 ppb1053ND - 4.00 ppb
20150.0165 ppb812ND - 0.710 ppb
2016ND730ND
2017ND620ND
2018ND510ND
2019ND450ND

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
2014-01-061401100-001-POCSND
2014-01-131401450-002-POCSND
2014-01-271401A86-002-POCSND
2014-02-031402019-002-POCSND
2014-02-101402401-002-POCSND
2014-02-241402C06-002-POCSND
2014-03-101403577-003-POCSND
2014-03-241403G34-003-POCSND
2014-04-011404110-015-POCSND
2014-04-011404110-002-POCSND
2014-04-011404110-004-POCSND
2014-04-011404110-006-POCSND
2014-04-141404A37-002-POCSND
2014-04-281404K36-006-POCSND
2014-04-281404K36-002-POCSND
2014-04-281404K36-004-POCSND
2014-04-291404L01-002-POCSND
2014-05-121405778-004-POCSND
2014-05-191405D53-002-POCSND
2014-05-191405D53-004-POCSND
2014-05-271405I53-002-POCSND
2014-06-021406059-002-POCSND
2014-06-021406059-005-POCSND
2014-06-161406B33-011-POCSND
2014-06-161406B33-004-POCSND
2014-06-161406B33-007-POCSND
2014-06-161406B33-009-POCSND
2014-06-161406B33-002-POCSND
2014-06-231406G43-003-POCSND
2014-06-241406G96-001-POCSND
2014-06-301406L88-005-POCSND
2014-06-301406L89-001-POCSND
2014-06-301406L90-002-POCSND
2014-06-301406L91-002-POCSND
2014-06-301406L88-003-POCSND
2014-06-301406L88-007-POCSND
2014-07-031407286-001-POCSND
2014-07-031407286-003-POCSND
2014-07-031407286-004-POCSND
2014-07-031407286-002-POCSND
2014-07-071407377-011-POCSND
2014-07-071407377-3.90 ppb
2014-07-071407377-0009-POCND
2014-07-071407377-017-POCSND
2014-07-071407377-003-POCSND
2014-07-071407377-019-POCSND
2014-07-141407916-004-POCSND
2014-07-141407919-003-POCSND
2014-07-141407917-002-POCSND
2014-07-141407919-005-POCSND
2014-07-141407919-007-POCSND
2014-07-141407916-002-POCSND
2014-07-281407J69-003-POCSND
2014-07-281407J69-007-POCSND
2014-07-281407J66-002-POCSND
2014-07-281407J65-001-POCSND
2014-07-281407J65-004-POCSND
2014-08-041408122-007-POCSND
2014-08-041408122-005-POCSND
2014-08-111408659-002-POCSND
2014-08-118659-004-PO CSND
2014-08-111408659-011-POCSND
2014-08-111408659-013-POCSND
2014-08-111408659-009-POCSND
2014-08-111408659-007-POCSND
2014-08-251408H52-004-POCSND
2014-08-251408H52-002-POCSND
2014-08-251408H51-002-POCSND
2014-08-251408H51-004-POCSND
2014-08-251408H53-002-POCSND
2014-08-251408H53-004-POCSND
2014-09-021409087-005-POCSND
2014-09-081409508-004-POCSND
2014-09-081409514-004-POCSND
2014-09-081409510-003-POCSND
2014-09-081409514-002-POCSND
2014-09-081409516-002-POCSND
2014-09-081409508-002-POCSND
2014-09-221409G58-007-POCSND
2014-09-221409G51-004-POCSND
2014-09-221409G58-002-POCSND
2014-09-221409G51-002-POCSND
2014-09-221409G58-004-POCSND
2014-09-221409G53-002-POCSND
2014-10-011410039-005-POCSND
2014-10-061410366-002-POCSND
2014-10-061410366-007-POCSND
2014-10-061410366-003-POCSND
2014-10-20141076-003-POCSND
2014-11-031411073-004-POCS1.40 ppb
2014-11-071411509-008-POCSND
2014-11-071411509-002-POCSND
2014-11-071411509-004-POCSND
2014-11-071411509-006-POCSND
2014-11-071411509-003-POCSND
2014-11-071411509-001-POCSND
2014-11-101411570-002-POCSND
2014-11-171411A97-002-POCSND
2014-11-181411B82-002-POCSND
2014-11-181411B82-003-POCS4.00 ppb
2014-11-181411B82-006-POCSND
2014-11-181411B82-004-POCSND
2014-12-011412052-002-POCSND
2014-12-151412A81-004-POCSND
2014-12-291412I99-002-POCSND
2015-01-121501595-003-POCSND
2015-01-261501F36-002-POCSND
2015-02-091502466-002-POCSND
2015-02-231502D73-002-POCSND
2015-03-091503512-003-POCSND
2015-03-231503F89-003-POCSND
2015-04-011504071-005-POCSND
2015-04-011504071-002-POCSND
2015-04-021504203-003-POCSND
2015-04-061504328-001-POCSND
2015-04-151504B25-003-POCSND
2015-04-161504C13-002-POCSND
2015-04-201504E73-003-POCSND
2015-04-211504F70-005-POCSND
2015-04-211504F70-002-POCSND
2015-04-271504K24-003-POCSND
2015-05-041505171-004-POCSND
2015-05-041505171-002-POCSND
2015-05-041505172-003-POCSND
2015-05-111505735-004-POCSND
2015-05-181505C69-007-POCSND
2015-05-181505C69-003-POCSND
2015-05-181505C69-009-POCSND
2015-06-011506059-002-POCSND
2015-06-011506059-010-POCSND
2015-06-011506059-006-POCSND
2015-06-151506C13-007-POCSND
2015-06-151506C13-004ND
2015-06-151506C13-002ND
2015-06-291506M75-004-POCSND
2015-06-291506M75-002-POCSND
2015-06-291506M75-007-POCSND
2015-07-011507048-008-POCSND
2015-07-011507048-006-POCSND
2015-07-061507261-003-POCSND
2015-07-131507847-004-POCSND
2015-07-131507847-010-POCSND
2015-07-131507847-007-POCSND
2015-07-131507847-012-POCSND
2015-07-131507847-011-POCS0.630 ppb
2015-07-271507J07-012-POCSND
2015-07-271507J07-002-POCSND
2015-07-271507J07-004-POCSND
2015-07-271507J07-014-POCSND
2015-07-271507J07-016-POCSND
2015-08-031508025-001-POCSND
2015-08-101508736-006-POCSND
2015-08-101508739-007-POCSND
2015-08-101508736-004-POCSND
2015-08-101508739-004-POCSND
2015-08-101508739-002-POCS0.710 ppb
2015-08-241508I38-007-POCSND
2015-08-241508I38-004-POCSND
2015-08-241508I38-013-POCSND
2015-08-241508I38-002-POCSND
2015-09-081509539-009-POCSND
2015-09-0815095369-004-POCND
2015-09-081509539-002-POCSND
2015-09-081509539-007-POCSND
2015-09-081509539-011-POCSND
2015-09-141509944-002-POCSND
2015-09-211509F42-005-POCSND
2015-09-211509F37-003-POCSND
2015-09-211509F42-002-POCSND
2015-09-211509F37-005-POCSND
2015-09-281509L64-002-POCSND
2015-10-051510287-002-POCSND
2015-10-051510287-006-POCSND
2015-10-051510287-008-POCSND
2015-10-051510287-010-POCSND
2015-10-191510E29-002-POCSND
2015-10-231510I54-003-POCSND
2015-10-231510I54-001-POCSND
2015-10-231510I54-002-POCSND
2015-10-231510I54-004-POCSND
2015-11-021511059-004-POCSND
2015-11-161511C05-003-POCSND
2015-11-231511H76-002-POCSND
2015-11-301511K60-003-POCSND
2015-12-071512516-003-POCSND
2015-12-141512B33-004-POCSND
2016-01-111601601-003ND
2016-01-111601064-003ND
2016-01-251601G28-004ND
2016-02-011602064-004ND
2016-02-081602659-003ND
2016-02-161602B54-003ND
2016-02-221602F55-003ND
2016-02-291602K17-001ND
2016-03-067012685004ND
2016-03-211603G54-003ND
2016-04-041604259-002ND
2016-04-061604520-003ND
2016-04-181604G15-003ND
2016-04-201604J22-004ND
2016-04-201604J22-002ND
2016-05-021605055-03ND
2016-05-021605056-005ND
2016-05-021605056-002ND
2016-05-161605D80-006ND
2016-05-161605D80-003ND
2016-05-161605D82-003ND
2016-05-311605S39-004ND
2016-05-311605S29-003ND
2016-05-311605S39-002ND
2016-06-021606199-003ND
2016-06-131606C42-005ND
2016-06-131606C44-003ND
2016-06-131606C44-005ND
2016-06-131606C42-003ND
2016-06-271606Q49-005ND
2016-06-271606Q53-002ND
2016-06-271606Q49-003ND
2016-06-271606Q53-005ND
2016-07-061607316-002ND
2016-07-111607781-003ND
2016-07-111607781-010ND
2016-07-111607781-008ND
2016-07-111607781-013ND
2016-07-111607781-005ND
2016-07-251607K84-003ND
2016-07-261607M17-001ND
2016-08-011608094-003ND
2016-08-011608096-004ND
2016-08-081608820-007ND
2016-08-081608829-004ND
2016-08-081608820-004ND
2016-08-221608K76-005ND
2016-09-061609312-006-POCSND
2016-09-061609311-004-POCSND
2016-09-061609311-007-POCSND
2016-09-061609312-004-POCSND
2016-09-191609F40-004-POCSND
2016-09-191609F38-006-POCSND
2016-09-191609F40-007-POCSND
2016-09-191609F38-004-POCSND
2016-09-261609M41-003-POCSND
2016-09-261609M41-005-POCSND
2016-10-03701061017-POCSND
2016-10-03701061026-POCSND
2016-10-03701061021-POCSND
2016-10-12701800002ND
2016-10-17702213006ND
2016-10-24702760005ND
2016-10-31703280009ND
2016-10-31703280011ND
2016-11-07703960003ND
2016-11-07703960002ND
2016-11-1470450004ND
2016-11-14704500006ND
2016-11-14704499003ND
2016-11-29705630004ND
2016-12-12706619004ND
2016-12-27707731004ND
2017-01-09708633004ND
2017-01-17709232003ND
2017-01-23709691005ND
2017-01-307010147004ND
2017-02-067010629003ND
2017-02-217011749005ND
2017-03-207013699006ND
2017-04-177016053002ND
2017-04-247016725002ND
2017-05-017017381012ND
2017-05-017017381008ND
2017-05-157018621011ND
2017-05-157018621008ND
2017-06-127021075003ND
2017-06-127021075006ND
2017-06-127021075009ND
2017-06-267022401006ND
2017-06-267022404003ND
2017-06-267022404005ND
2017-06-267022401004ND
2017-07-037023097005ND
2017-07-107023620008ND
2017-07-107023620015ND
2017-07-107023620010ND
2017-07-117024337002ND
2017-07-247025068004ND
2017-07-247025068014ND
2017-07-247025068013ND
2017-07-287025506002ND
2017-08-077026374004-POCSND
2017-08-077026381003ND
2017-08-077026374008-POCSND
2017-08-217027801015-POCSND
2017-08-217027801007-POCSND
2017-08-217027801011-POCSND
2017-09-057028890020ND
2017-09-057028890029ND
2017-09-057028890023ND
2017-09-057028890016ND
2017-09-117029469005ND
2017-09-187030219004ND
2017-09-187030217008ND
2017-09-187030217004ND
2017-09-187030219009ND
2017-09-287031279003ND
2017-10-027031602003ND
2017-10-027031628003ND
2017-10-027031628010ND
2017-10-027031602005ND
2017-10-127032689003ND
2017-10-167033030007ND
2017-10-167033030003ND
2017-10-167033030008ND
2017-10-177033151002ND
2017-10-307034310003ND
2017-10-307034310005ND
2017-11-067034917002ND
2017-11-137035560002ND
2017-11-137035560010ND
2017-11-137035560006ND
2017-11-277036534003ND
2017-12-117037797003ND
2018-01-087039799003ND
2018-01-237041105003ND
2018-02-057042027005ND
2018-02-207043391001ND
2018-03-067044608003ND
2018-03-197045690003ND
2018-04-027046894003ND
2018-04-107048525003ND
2018-05-087050745001ND
2018-05-147051557003ND
2018-05-147051559002ND
2018-06-047053563003ND
2018-06-047053563002ND
2018-06-047053563004ND
2018-06-1170544888002ND
2018-06-187055285002ND
2018-06-187055284003ND
2018-06-207055576001ND
2018-06-257056100003ND
2018-06-257056100005ND
2018-06-257056103002ND
2018-07-027056869002ND
2018-07-027056864005ND
2018-07-097057472004ND
2018-07-097057466003ND
2018-07-097057472010ND
2018-07-107057581002ND
2018-07-237059123003ND
2018-07-237059120008ND
2018-07-237059124004ND
2018-07-237059120004ND
2018-07-307059785004ND
2018-07-307059774003ND
2018-08-067060508004ND
2018-08-067060512003ND
2018-08-137061325004ND
2018-08-207062107011ND
2018-08-207062107008ND
2018-08-277062878002ND
2018-09-047063564008ND
2018-09-047063564004ND
2018-09-107064191001ND
2018-09-177064993003ND
2018-09-247065682003ND
2018-10-017066377002ND
2018-10-297069346003ND
2018-11-057069985002ND
2018-11-137070940003ND
2018-11-147071115002ND
2018-11-267071910003ND
2018-12-107073409003ND
2019-04-097085082001ND
2019-04-177086170002ND
2019-04-297087509002ND
2019-05-137089239002ND
2019-05-237090699004ND
2019-05-287091048003ND
2019-06-077092803003ND
2019-06-077092803001ND
2019-06-107092853002ND
2019-06-247095077004ND
2019-06-247095075006ND
2019-06-247095075003ND
2019-07-027096086002ND
2019-07-087096606001ND
2019-07-087096609005ND
2019-07-087096609003ND
2019-07-297099210009ND
2019-07-297099210006ND
2019-07-297099210002ND
2019-08-057099883004ND
2019-08-057099883002ND
2019-08-057099883008ND
2019-08-1270100885005ND
2019-08-197010189004ND
2019-08-1970101890008ND
2019-08-1970101890010ND
2019-08-2670102676003ND
2019-09-0370103445006ND
2019-09-0370103445002ND
2019-09-0370103446002ND
2019-09-0370103445010ND
2019-09-0370103445004ND
2019-09-0970104140002ND
2019-09-3070106688002ND
2019-09-30701066888011ND
2019-09-3070106688005ND
2019-09-3070106688014ND
2019-09-3070106688007ND
2019-10-0770107508002ND
2019-10-1570108494007ND
2019-10-1570108494011ND
2019-10-1570108494005ND
2019-10-1570108494002ND
2019-10-1670108627003ND
2019-10-2870109877003ND