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EWG's Tap Water Database — 2021 UPDATE

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Tetrachloroethylene (perchloroethylene)

Bethpage WD

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

 

334

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND610ND
2015ND590ND
2016ND570ND
2017ND570ND
2018ND470ND
2019ND530ND

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
2014-01-061401064-003-POCSND
2014-01-071401169-003-POCSND
2014-01-101401379-002-POCSND
2014-01-101401382-002-POCSND
2014-02-041402054-003-POCSND
2014-02-061402226-003-POCSND
2014-02-101402406-003-POCSND
2014-02-181402811-001-POCSND
2014-02-181402608-001-POCSND
2014-03-031403028-003-POCSND
2014-03-071403446-003-POCSND
2014-03-131403873-003-POCSND
2014-03-171403B04-004-POCSND
2014-03-171403B04-003-POCSND
2014-04-011404009-003-POCSND
2014-04-031404242-003-POCSND
2014-04-031404242-004-POCSND
2014-04-091404699-003-POCSND
2014-04-141404A25-003-POCSND
2014-04-301404N04-003-POCSND
2014-04-301404M04-002-POCSND
2014-05-011405009-003-POCSND
2014-05-051405196-003-POCSND
2014-05-081405554--003-POCND
2014-05-131405965-002ND
2014-05-131405966-002-POCSND
2014-06-021406028-003-POCSND
2014-06-031406154-003-POCSND
2014-06-041406248-003-POCSND
2014-06-091406560-002-POCSND
2014-06-091406556-002-POCSND
2014-07-011407012-003-POCSND
2014-07-011407005-003-POCSND
2014-07-031407230-002-POCSND
2014-07-031407219-002-POCSND
2014-07-031407226-003-POCSND
2014-08-051408207-003-POCSND
2014-08-061408299-003-POCSND
2014-08-071408410-003-POCSND
2014-08-111408684-002-POCSND
2014-08-111408682-002-POCSND
2014-09-021409035-003-POCSND
2014-09-031409183-003-POCSND
2014-09-041409243-003-POCSND
2014-09-051409357-002-POCSND
2014-09-051409360-002-POCSND
2014-10-011410067-003-POCSND
2014-10-011410069-003-POCSND
2014-10-061410308-003-POCSND
2014-10-081410584-002-POCSND
2014-10-081410587-002-POCSND
2014-11-031411023-003-POCSND
2014-11-031411032-003-POCSND
2014-11-041411165-003-POCSND
2014-11-051411230-002-POCSND
2014-11-131411907-002-POCSND
2014-12-011412016-003-POCSND
2014-12-011412018-003-POCSND
2014-12-021412144-003-POCSND
2014-12-031412225-002-POCSND
2014-12-031412223-002-POCSND
2015-01-021501009-003-POCSND
2015-01-021501004-003-POCSND
2015-01-121501572-002-POCSND
2015-01-121501570-002-POCSND
2015-01-261501F10-003-POCSND
2015-02-021502016-003-POCSND
2015-02-021502041-003-POCSND
2015-02-091502455-002-POCSND
2015-02-091502453-002-POCSND
2015-02-101502576-003-POCSND
2015-03-021503016-003-POCSND
2015-03-021503018-003-POCSND
2015-03-041503223-002-POCSND
2015-03-041503217-002-POCSND
2015-03-091503514-003-POCSND
2015-04-021504182-003-POCSND
2015-04-061504322-003-POCSND
2015-04-081504519-002-POCSND
2015-04-081504516-002-POCSND
2015-04-161504B93-003-POCSND
2015-05-041505127-03-POCSND
2015-05-051505273-003-POCSND
2015-05-051505228-002-POCSND
2015-05-051505226-003-POCSND
2015-05-111505703-002-POCSND
2015-05-111505701-002ND
2015-06-011506021-003-POCSND
2015-06-011506001-003-POCSND
2015-06-031506228-002-POCSND
2015-06-031506226-002-POCSND
2015-06-051506511-003-POCSND
2015-07-011507028-004 POCSND
2015-07-021507122-002ND
2015-07-021507131-003ND
2015-07-021507126-002 POCSND
2015-07-021507152-001ND
2015-08-031508112-003 POCSND
2015-08-031508016-002 POCSND
2015-08-041508132-003ND
2015-08-041508136-003 POCSND
2015-08-051508292-002 POCSND
2015-09-011509069-003ND
2015-09-011509044-003ND
2015-09-021509130-003 POCSND
2015-09-021509127-002ND
2015-09-241509I95-002ND
2015-10-011510012-003ND
2015-10-021510102-003ND
2015-10-051510204-003ND
2015-10-051510275-002ND
2015-10-091510761-002ND
2015-11-021511015-003ND
2015-11-021511019-003ND
2015-11-021511011-003ND
2015-11-041511239-002ND
2015-11-041511232-002ND
2015-12-011512122-003ND
2015-12-011512117-002ND
2015-12-031512274-003ND
2016-01-041601026-003ND
2016-01-041601027-003ND
2016-01-051601117-003ND
2016-01-051601118-002ND
2016-02-011602026-003ND
2016-02-011602030-003ND
2016-02-021602116-002ND
2016-02-021602114-003ND
2016-03-011603058-003ND
2016-03-011603017-003ND
2016-03-021603133-002ND
2016-03-021603136-003ND
2016-04-041604178-003ND
2016-04-041604182-003ND
2016-04-051604307-002ND
2016-04-081604814-003ND
2016-04-191604H67-001ND
2016-04-191604H67-002ND
2016-05-021605026-003ND
2016-05-021605031-003ND
2016-05-031605134-003ND
2016-05-031605136-002ND
2016-05-131605C19-002ND
2016-06-011606046-003ND
2016-06-011606058-003ND
2016-06-021606179-002ND
2016-06-021606176-003ND
2016-06-021606174-002ND
2016-07-011607033-003ND
2016-07-011607038-003ND
2016-07-061607309-001ND
2016-07-061607304-002ND
2016-07-201607G21-003ND
2016-08-011608030-003ND
2016-08-011608023-003ND
2016-08-021608153-002ND
2016-08-021608146-003ND
2016-08-021608150-002ND
2016-09-011609007-003ND
2016-09-011609009-003ND
2016-09-021609103-001ND
2016-09-061609226-002ND
2016-09-141609A32-003ND
2016-10-03701016003ND
2016-10-03701004003ND
2016-10-04701085002ND
2016-10-04701086003ND
2016-10-04701090002ND
2016-11-01703342003ND
2016-11-01703329003ND
2016-11-02703443003ND
2016-11-02703439002ND
2016-11-02703441002ND
2016-12-01705757003ND
2016-12-01705755003ND
2016-12-02705860002ND
2016-12-02705864003ND
2017-01-03708121003ND
2017-01-03708119003ND
2017-01-04708226003ND
2017-01-04708228002ND
2017-02-017010299003ND
2017-02-017010301003ND
2017-02-027010428003ND
2017-02-027010433002ND
2017-03-017012330003ND
2017-03-017012330006ND
2017-03-027012444005ND
2017-03-027012444002ND
2017-04-037014702007ND
2017-04-037014702004ND
2017-04-047014793005ND
2017-04-047014790003ND
2017-04-117015494002ND
2017-04-117015494001ND
2017-05-017017330006ND
2017-05-017017330003ND
2017-05-027017419007ND
2017-05-027017419005ND
2017-05-027017419003ND
2017-06-017020087004ND
2017-06-017020087007ND
2017-06-027020195003ND
2017-06-027020207002ND
2017-06-027020188002ND
2017-07-037023051003ND
2017-07-037023057003ND
2017-07-057023149003ND
2017-07-057023149005ND
2017-07-057023149007ND
2017-08-027025936005ND
2017-08-027025936002ND
2017-08-037026044006ND
2017-08-037026044003ND
2017-08-147027134002ND
2017-09-017028733007ND
2017-09-017028733005ND
2017-09-017028733002ND
2017-09-057028822005ND
2017-09-057028822003ND
2017-10-027031523003ND
2017-10-027031513003ND
2017-10-037031771003ND
2017-10-037031776002ND
2017-10-237033724002ND
2017-11-017034471003ND
2017-11-017034468003ND
2017-11-027034612003ND
2017-11-027034615002ND
2017-11-027034621002ND
2017-12-047037022003ND
2017-12-047037025003ND
2017-12-057037178003ND
2017-12-057037183002ND
2018-01-027039433003ND
2018-01-027039428002ND
2018-01-037039549002ND
2018-01-037039537003ND
2018-02-017041864003ND
2018-02-017041859003ND
2018-02-027041929002ND
2018-02-027041932003ND
2018-03-017044170003ND
2018-03-017044227003ND
2018-03-027044360003ND
2018-03-027044364002ND
2018-04-027046851003ND
2018-04-027046849003ND
2018-04-037046965003ND
2018-04-037046968002ND
2018-05-017050003003ND
2018-05-017050006003ND
2018-05-027050249002ND
2018-05-027050253002ND
2018-06-047053553003ND
2018-06-047053547003ND
2018-06-057053665002ND
2018-06-057053667002ND
2018-07-027056821003ND
2018-07-027056825003ND
2018-07-037057049002ND
2018-07-037057052002ND
2018-08-067060483003ND
2018-08-067060488003ND
2018-08-077060734002ND
2018-08-077060729002ND
2018-09-047063506003ND
2018-09-047063507003ND
2018-09-057063696003ND
2018-09-057063696005ND
2018-10-017066339003ND
2018-10-017066338003ND
2018-10-027066493002ND
2018-10-027066493004ND
2018-11-017069667003ND
2018-11-017069664003ND
2018-11-027069898002ND
2018-11-027069898004ND
2018-12-037072611006ND
2018-12-037072611003ND
2018-12-047072767002ND
2019-01-027075226003ND
2019-01-027075233003ND
2019-01-037075439002ND
2019-01-187077011001ND
2019-01-187077011002ND
2019-01-187077011003ND
2019-01-187077011004ND
2019-02-047078242003ND
2019-02-047078242006ND
2019-02-057078379002ND
2019-03-047081155003ND
2019-03-047081153003ND
2019-03-057081245002ND
2019-04-017083986003ND
2019-04-017083988003ND
2019-04-027084124002ND
2019-05-017087752003ND
2019-05-017087754003ND
2019-05-027087901002ND
2019-06-037091747006ND
2019-06-037091747003ND
2019-06-047091922004ND
2019-06-047091922002ND
2019-06-117093118001ND
2019-07-027095944003ND
2019-07-027096056003ND
2019-07-037096337002ND
2019-07-037096334002ND
2019-07-307099314003ND
2019-08-017099649003ND
2019-08-017099654003ND
2019-08-027099700002ND
2019-08-027099695002ND
2019-09-0370103521006ND
2019-09-0370103521003ND
2019-09-0470103615002ND
2019-09-0470103618002ND
2019-09-0670104030003ND
2019-10-0170106776006ND
2019-10-0170106776003ND
2019-10-0270106990003ND
2019-10-0270106990005ND
2019-10-0370107215003ND
2019-10-1870108987001ND
2019-11-0170110399003ND
2019-11-0470110517003ND
2019-11-0570110662002ND
2019-11-0570110665002ND
2019-11-0870111149003ND
2019-12-0270113565003ND
2019-12-0270113568003ND
2019-12-0270113544003ND
2019-12-0370113655002ND