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EWG's Tap Water Database — 2019 UPDATE

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1,1,1-Trichloroethane

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1,1,1-Trichloroethane is a solvent and a degreasing agent used for manufacturing metal products and as ingredient in cleaners and aerosols. Exposure to 1,1,1-trichloroethane can harm the nervous system, liver and circulatory system.

 

471

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.0682 ppb663ND - 2.00 ppb
20130.0333 ppb842ND - 1.50 ppb
20140.111 ppb887ND - 1.90 ppb
20150.151 ppb677ND - 2.23 ppb
20160.111 ppb807ND - 1.80 ppb
20170.154 ppb8611ND - 1.90 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 200 ppb

The legal limit for 1,1,1-trichloroethane, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-171201469-002-POCSND
2012-01-241201755-002-POCSND
2012-02-141202469-002-POCSND
2012-02-151202549-002-POCSND
2012-03-051203120-002-POCSND
2012-03-121203388-002-POCSND
2012-04-091204340-002-POCSND
2012-04-111204498-001-POCSND
2012-04-111204460-002-POCSND
2012-04-171204685-005-POCSND
2012-04-171204685-002-POCSND
2012-04-171204685-003-POCSND
2012-04-171204685-004-POCSND
2012-04-181204758-002-POCSND
2012-05-021205092-002-POCSND
2012-05-031205160-001-POCS0.700 ppb
2012-05-071205287-002-POCSND
2012-05-091205426-002-POCSND
2012-06-041206037-002-POCSND
2012-06-061206180-002-POCSND
2012-06-111206395-002-POCSND
2012-06-271206B33-002-POCND
2012-07-091207324-002-POCSND
2012-07-111207442-002-POCSND
2012-07-161207673-002-POCSND
2012-07-181207851-001-POCSND
2012-07-231207A57-002-POCSND
2012-08-011208001-002-POCSND
2012-08-061208209-002-POCSND
2012-08-081208393-002-POCSND
2012-08-091208536-004-POCSND
2012-08-091208536-006-POCSND
2012-08-291208E82-004-POCSND
2012-08-291208E82-002-POCSND
2012-09-051209121-001-POCS2.00 ppb
2012-09-071209342-003-POCSND
2012-09-101209396-001-POCSND
2012-09-121209566-003-POCSND
2012-09-171209804-003-POCSND
2012-09-191209975-002-POCSND
2012-09-241209B92-003-POCSND
2012-09-241209B83-002-POCSND
2012-09-251209C71-003-POCSND
2012-09-261209D64-005-POCSND
2012-10-011210001-003-POCSND
2012-10-031210233-001-POCS1.80 ppb
2012-10-091210453-002-POCSND
2012-10-101210552-002-POCSND
2012-10-111210653-003-POCSND
2012-10-161210861-001-POCSND
2012-10-221210B67-005-POCSND
2012-10-251210D89-003-POCSND
2012-11-021211067-003-POCSND
2012-11-071211263-002-POCSND
2012-11-091211389-003-POCSND
2012-11-131211476-002-POCSND
2012-11-151211672-003-POCSND
2012-11-201211885-003-POCSND
2012-11-281211B89-003-POCSND
2012-12-031212007-002-POCSND
2012-12-051212177-003-POCSND
2012-12-071212354-003-POCSND
2012-12-121212588-003-POCSND
2012-12-181212921-005-POCSND
2012-12-191212A09-003-POCSND
2012-12-271212C78-003-POCSND
2013-01-021301043-003-POCSND
2013-01-081301277-002-POCSND
2013-01-101301441-003-POCSND
2013-01-141301581-002-POCSND
2013-01-171301772-003-POCSND
2013-01-231301A04-005-POCSND
2013-01-251301B28-003-POCSND
2013-01-311301D25-003-POCSND
2013-02-041302060-002-POCSND
2013-02-061302202-003-POCSND
2013-02-131302475-005-POCSND
2013-02-151302625-003-POCSND
2013-02-201302779-003-POCSND
2013-02-221302924-003-POCSND
2013-02-281302B75-003-POCSND
2013-03-041303050-002-POCSND
2013-03-051303126-002-POCSND
2013-03-111303436-003-POCSND
2013-03-181303812-005-POCSND
2013-03-211303A60-003-POCSND
2013-03-271303C87-003-POCSND
2013-04-011304009-003-POCSND
2013-04-021304154-002-POCSND
2013-04-031304193-002-POCSND
2013-04-151304842-005-POCSND
2013-04-181304B17-003-POCSND
2013-04-241304E57-004-POCSND
2013-04-301304G63-003-POCSND
2013-05-021305099-002-POCSND
2013-05-061305273-002-POCSND
2013-05-131305622-005-POCSND
2013-05-171305946-001-POCSND
2013-05-201305A21-004-POCSND
2013-06-031306004-002-POCSND
2013-06-041306075-003-POCSND
2013-06-101306423-003-POCSND
2013-06-171306859-007-POCSND
2013-06-171306859-005-POCSND
2013-06-171306859-008-POCSND
2013-07-011307024-002-POCSND
2013-07-021307124-001-POCS1.30 ppb
2013-07-031307205-001-POCSND
2013-07-031307205-005-POCSND
2013-07-031307205-003-POCSND
2013-07-031307205-002-POCSND
2013-07-031307205-004-POCSND
2013-07-081307318-003-POCSND
2013-07-221307A42-003-POCSND
2013-07-241307B58-004-POCSND
2013-07-241307B58-007-POCSND
2013-07-241307B58-006-POCSND
2013-08-051308145-002-POCSND
2013-08-081308436-003-POCSND
2013-08-151308779-003-POCSND
2013-08-191308913-004-POCSND
2013-08-191308913-006-POCSND
2013-08-191308913-007-POCSND
2013-09-041309110-002-POCSND
2013-09-051309202-001-POCSND
2013-09-051309202-002-POCSND
2013-09-051309202-004-POCSND
2013-09-051309202-003-POCSND
2013-09-051309202-005-POCSND
2013-09-051309202-006-POCSND
2013-09-111309583-003-POCSND
2013-09-161309846-003ND
2013-09-231309C70-010-POCSND
2013-09-231309C70-005-POCSND
2013-10-021310115-002-POCSND
2013-10-071310350-002-POCSND
2013-10-091310544-003-POCSND
2013-10-161310891-003-POCSND
2013-10-211310A97-002-POCSND
2013-10-211310A97-001-POCSND
2013-10-221310B85-001-POCS1.50 ppb
2013-11-041311059-002-POCSND
2013-11-061311269-001-POCSND
2013-11-061311238-003-POCSND
2013-11-191311934-005-POCSND
2013-11-191311934-004-POCSND
2013-12-021312003-002-POCSND
2013-12-041312160-004-POCSND
2013-12-041312160-005-POCSND
2013-12-161312848-003-POCSND
2014-01-071401138-002-POCSND
2014-01-081401236-003-POCSND
2014-01-08140123-003-POCSND
2014-01-131401426-007-POCSND
2014-01-131401426-006-POCSND
2014-01-211401879-003-POCSND
2014-02-031402004-002-POCSND
2014-02-041402034-003-POCSND
2014-02-101402372-003-POCSND
2014-02-111402455-001-POCS1.30 ppb
2014-02-271402F41-005-POCSND
2014-02-271402F41-004-POCSND
2014-03-031403014-002-POCSND
2014-03-041403096-003-POCSND
2014-03-101403566-003-POCSND
2014-03-181403C16-001-POCSND
2014-03-191403D40-005-POCSND
2014-03-191403D40-004-POCSND
2014-04-011404032-003-POCSND
2014-04-031404265-002-POCSND
2014-04-071404438-001-POCSND
2014-04-141404979-005-POCSND
2014-04-141404979-004-POCSND
2014-04-161404C04-003-POCSND
2014-05-011405011-002-POCSND
2014-05-021405136-004-POCSND
2014-05-021405136-002-POCSND
2014-05-021405136-005-POCSND
2014-05-021405136-006-POCSND
2014-05-021405136-003-POCSND
2014-05-021405136-007-POCSND
2014-05-051405184-004-POCSND
2014-05-051405184-005-POCSND
2014-05-121405744-003-POCSND
2014-05-121405773-003-POCSND
2014-06-021406009-002-POCSND
2014-06-031406123-004-POCSND
2014-06-031406123-005-POCSND
2014-06-041406340-004-POCSND
2014-06-041406340-002-POCSND
2014-06-091406553-003-POCSND
2014-06-171406B86-003-POCSND
2014-06-241406G86-002-POCSND
2014-06-241406H58-001-POCS1.30 ppb
2014-07-011407007-002-POCSND
2014-07-011407006-001-POCS1.50 ppb
2014-07-071407321-003-POCSND
2014-07-091407553-003-POCSND
2014-07-211407E05-004-POCSND
2014-07-211407E05-005-POCSND
2014-07-291407K19-002-POCSND
2014-08-051408163-002-POCSND
2014-08-111408603-003-POCSND
2014-08-121408691-003-POCSND
2014-08-141408968-001-POCS1.90 ppb
2014-08-191408C70-001-POCSND
2014-08-191408C70-002-POCSND
2014-08-251408H13-002-POCSND
2014-08-311508N08-002-POCSND
2014-09-021409006-002-POCSND
2014-09-031409147-003-POCSND
2014-09-081409465-005-POCSND
2014-09-081409465-004-POCSND
2014-09-091409574-003-POCSND
2014-09-291409L82-001-POCS1.60 ppb
2014-09-291409L55-002-POCSND
2014-09-301409M86-003-POCSND
2014-09-301409M86-002-POCSND
2014-10-061410303-004-POCSND
2014-10-061410303-005-POCSND
2014-10-071410401-002-POCSND
2014-10-081410540-002-POCSND
2014-10-141410867-003-POCSND
2014-10-211410D18-003-POCSND
2014-10-281410H85-001-POCS1.50 ppb
2014-11-0314110290002-POCSND
2014-11-031511114-002-POCSND
2014-11-041411162-005-POCSND
2014-11-041411162-004-POCSND
2014-11-041411160-003-POCSND
2014-11-121411708-003-POCSND
2014-11-241411F90-001-POCS0.660 ppb
2014-12-011412004-002-POCSND
2014-12-011412055-003-POCSND
2014-12-081412528-004-POCSND
2014-12-081412528-005-POCSND
2014-12-151412A53-003-POCSND
2014-12-301412J15-001-POCSND
2015-01-051501057-002-POCSND
2015-01-051501098-003-POCSND
2015-01-131501685-001-POCSND
2015-01-141501749-003-POCSND
2015-01-261501F00-005-POCSND
2015-01-261501F00-004-POCSND
2015-02-021502020-002-POCSND
2015-02-031502056-003-POCSND
2015-02-101502545-003-POCSND
2015-02-181502A50-001-POCSND
2015-03-031503079-003-POCSND
2015-03-041503215-002-POCSND
2015-03-101503567-001-POCSND
2015-03-111503703-003-POCSND
2015-04-011504025-002-POCSND
2015-04-061504293-001-POCS0.740 ppb
2015-04-061504303-003-POCSND
2015-04-211504F27-003-POCSND
2015-05-041505116-002-POCSND
2015-05-041505165-003-POCSND
2015-05-081505605-003-POCSND
2015-05-111505698-003-POCSND
2015-05-141505A15-001-POCS1.55 ppb
2015-06-041506372-003-POCSND
2015-06-041506372-001-POCSND
2015-06-041506372-002-POCSND
2015-06-041506361-001-POCS1.65 ppb
2015-06-081506608-003-POCSND
2015-06-091506752-002-POCSND
2015-06-101506840-003-POCSND
2015-06-251506K63-002-POCSND
2015-07-071507339-003-POCSND
2015-07-071507339-001-POCS0.990 ppb
2015-07-091507598-003-POCSND
2015-07-171507C71-002-POCSND
2015-07-221507F82-003-POCSND
2015-07-281507J60-005-POCSND
2015-07-281507J60-004-POCSND
2015-08-041508128-002-POCSND
2015-08-121508902-003-POCSND
2015-08-121508668-001-POCS2.23 ppb
2015-08-121508306-003-POCSND
2015-08-191508E91-005-POCSND
2015-08-191508E91-004-POCSND
2015-09-021509122-03-POCSND
2015-09-021509122-003-POCSND
2015-09-021509122-001-POCS1.37 ppb
2015-09-091509634-003-POCSND
2015-09-161509B60-003-POCSND
2015-09-221509G40-005-POCSND
2015-09-221509G40-004-POCSND
2015-09-291509L97-002-POCSND
2015-10-051510202-001-POCS1.62 ppb
2015-10-061510378-002-POCSND
2015-10-131510890-003-POCSND
2015-10-141510A29-003-POCSND
2015-10-201510E70-005-POCSND
2015-10-201510E70-006-POCSND
2015-10-271510K13-002-POCSND
2015-11-041511265-003-POCSND
2015-11-161511B78-001-POCSND
2015-11-171511C64-005-POCSND
2015-11-171511C64-006-POCSND
2015-12-011512014-002-POCSND
2015-12-081512605-001-POCSND
2015-12-081512605001-POCSND
2015-12-16151D35-005ND
2016-01-051601130-002-POCSND
2016-01-071601345-003-POCSND
2016-01-121601648-001-POCSND
2016-01-201601D06-006-POCSND
2016-01-201601D06-005-POCSND
2016-01-261601G57-003-POCSND
2016-02-011602009-002-POCSND
2016-02-021602124-006-POCSND
2016-02-021602124-005-POCSND
2016-02-031602262-001-POCS0.890 ppb
2016-02-091602755-003-POCSND
2016-02-171602C36-003-POCSND
2016-03-011603001-003-POCSND
2016-03-021603127-002-POCSND
2016-03-081603588-001-POCSND
2016-03-091603705-006-POCSND
2016-03-091603705-005-POCSND
2016-03-161603C59-003-POCSND
2016-04-051604317-002-POCSND
2016-04-061604474-003-POCSND
2016-04-071604644-003-POCSND
2016-04-191604H22-006-POCSND
2016-04-191604H22-005-POCSND
2016-04-271604O64-001-POCSND
2016-04-281604Q16-002-POCSND
2016-05-031605131-002-POCSND
2016-05-041605276-003-POCSND
2016-05-051605408-001-POCSND
2016-05-171605E44-006-POCSND
2016-05-171605E44-005-POCSND
2016-05-261605P45=002-POCSND
2016-06-021606189-002-POCSND
2016-06-061606440-002-POCSND
2016-06-071606537-003-POCSND
2016-06-141606D23-004-POCSND
2016-06-141606D230001-POCS1.23 ppb
2016-06-211606J98-005-POCSND
2016-06-211606J68-006-POCSND
2016-07-051607138-001-POCS1.25 ppb
2016-07-071607457-002-POCSND
2016-07-111607722-003-POCSND
2016-07-191607E66-003-POCSND
2016-07-201607G25-002-POCSND
2016-07-251607K43-002-POCSND
2016-07-251607K43-001-POCSND
2016-07-271607N14-002-POCSND
2016-08-021608140-001-POCS1.26 ppb
2016-08-021608140-003-POCSND
2016-08-081608762-003-POCSND
2016-08-151608D68-002-POCSND
2016-08-161608E55-006-POCSND
2016-08-161608E55-005-POCSND
2016-08-291608Q17-003-POCSND
2016-08-301608Q97-002-POCSND
2016-09-071609388-002-POCSND
2016-09-121609773-002-POCSND
2016-09-131609878-003-POCSND
2016-09-141609A97-003-POCSND
2016-09-151609C61-001-POCS1.11 ppb
2016-09-261609L90-001-POCSND
2016-09-261609L90-002-POCSND
2016-09-281609O64-002-POCSND
2016-10-05701192002-POCSND
2016-10-17702188003-POCSND
2016-10-18702252003-POCSND
2016-10-1870225002-POCSND
2016-10-24702732003-POCSND
2016-11-07703823005-POCSND
2016-11-07703823006-POCSND
2016-11-08703940002ND
2016-11-09704054001-POCS1.30 ppb
2016-11-14704430003ND
2016-11-15704560003ND
2016-11-21705053002-POCSND
2016-12-05706005003ND
2016-12-05705963002ND
2016-12-12706579003ND
2016-12-147067800011.80 ppb
2016-12-20707337005ND
2016-12-20707337006ND
2017-01-03708178001-POCS1.20 ppb
2017-01-05708357002-POCSND
2017-01-10708691002ND
2017-01-11708894006ND
2017-01-11708894005ND
2017-01-12708946003ND
2017-01-17709276003-POCSND
2017-01-20709614002-POCS1.20 ppb
2017-02-0170102980010.770 ppb
2017-02-067010611002ND
2017-02-087010861005ND
2017-02-087010861006ND
2017-02-147011212003ND
2017-02-237011930002ND
2017-03-017012311002ND
2017-03-027012451002ND
2017-03-067012705005ND
2017-03-067012705006ND
2017-03-087012859003ND
2017-03-0870128590060.710 ppb
2017-04-0470148290010.720 ppb
2017-04-057014996002ND
2017-04-107015364003ND
2017-04-177016005003ND
2017-04-247016741006ND
2017-04-247016741005ND
2017-04-247016665002ND
2017-05-017017334006ND
2017-05-027017456003ND
2017-05-157018594006ND
2017-05-157018594005ND
2017-05-227019238003ND
2017-05-2470194260010.520 ppb
2017-06-017020082002ND
2017-06-057020322003ND
2017-06-0970208790011.40 ppb
2017-06-127021030003ND
2017-06-207021873002ND
2017-06-217022042006ND
2017-06-217022042005ND
2017-06-267022376002ND
2017-07-0370230320011.80 ppb
2017-07-057023138002ND
2017-07-067023242002ND
2017-07-107023529005ND
2017-07-107023529006ND
2017-07-137023987002ND
2017-07-187024412003ND
2017-07-247025032003ND
2017-08-0370261000011.30 ppb
2017-08-077026350002ND
2017-08-107026803005ND
2017-08-147027088003ND
2017-08-247028102002ND
2017-08-247028102004ND
2017-08-287028309006ND
2017-08-287028309005ND
2017-09-0670289940011.90 ppb
2017-09-067028994003ND
2017-09-117029465003ND
2017-09-1370297230041.70 ppb
2017-09-137029723020ND
2017-09-137029723010ND
2017-09-137029723008ND
2017-09-137029723012ND
2017-09-137029723006ND
2017-09-187030163001ND
2017-09-257030894006ND
2017-09-257030894005ND
2017-09-287031317002ND
2017-10-037031673002ND
2017-10-107032375006ND
2017-10-107032375005ND
2017-10-167033001006ND
2017-10-187033282003ND
2017-10-237033737002ND
2017-10-317034372002ND
2017-11-01703448002ND
2017-11-067034877003ND
2017-11-137035551003ND
2017-11-177036063002ND
2017-11-297036727005ND
2017-11-297036727006ND
2017-12-047037035003ND
2017-12-057037161003ND
2017-12-127037838002ND