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EWG's Tap Water Database — 2021 UPDATE

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MTBE

Garden City Park WD

MTBE was used as gasoline oxygenation additive to boost the octane number. In 2005, MTBE was replaced by ethanol as a gasoline additive. MTBE causes cancers in rats.

MORE ABOUT THIS CONTAMINANT

 

281

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
20140.0470 ppb575ND - 0.550 ppb
20150.0174 ppb311ND - 0.540 ppb
20160.0959 ppb569ND - 0.660 ppb
20170.195 ppb5710ND - 1.80 ppb
20180.464 ppb5421ND - 1.30 ppb
20190.462 ppb267ND - 2.50 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 13 ppb

The EWG Health Guideline of 13 ppb for MTBE 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.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-061401087-003-POCSND
2014-01-151401673-002-POCSND
2014-01-231401960-007-POCSND
2014-01-231401960-005-POSND
2014-02-101402387-004-POCSND
2014-02-101402387-002-POCSND
2014-02-111402510-002-POCSND
2014-02-241402B99-003-POCSND
2014-03-031403055-004-POCSND
2014-03-031403055-002-POCSND
2014-03-111403663-002-POCSND
2014-03-191403D49-003-POCSND
2014-04-011404128-002-POCS0.530 ppb
2014-04-071404495-003-POCSND
2014-04-171404D53-002-POCSND
2014-05-051405215-002-POCSND
2014-05-091405677-002-POCSND
2014-05-121405771-003-POCSND
2014-05-271405I30-002-POCSND
2014-06-041406343-002-POCSND
2014-06-041406343-004-POCSND
2014-06-041406343-003-POCSND
2014-06-041406343-005-POCSND
2014-06-041406349-002-POCSND
2014-06-091406600-003-POCSND
2014-06-091406600-005-POCSND
2014-06-09140600-003-POCSND
2014-06-101406653-002-POCSND
2014-07-071407345-002-POCSND
2014-07-071407344-002-POCS0.550 ppb
2014-07-101407693-002-POCS0.540 ppb
2014-07-141407892-003-POCSND
2014-07-171407C45-002-POCSND
2014-08-041408100-004-POCSND
2014-08-041408100-006-POCSND
2014-08-041408100-002-POCSND
2014-08-111408650-003-POCSND
2014-08-121408781-002-POCSND
2014-09-041409301-002-POCSND
2014-09-041409302-003-POCSND
2014-09-041409302-005-POCSND
2014-09-161409B58-002-POCSND
2014-09-181409E42-002-POCSND
2014-10-061410329-004-POCS0.510 ppb
2014-10-061410329-002-POCSND
2014-10-061410329-006-POCSND
2014-10-141410898-003-POCSND
2014-11-031411051-002-POCSND
2014-11-031410F33-002-POCSND
2014-11-121411796-002-POCS0.550 ppb
2014-11-171411A81-002-POCSND
2014-11-191411D17-002-POCSND
2014-11-241411F89-003-POCSND
2014-12-011412041-002-POCSND
2014-12-101412770-003-POCSND
2014-12-101412770-005-POCSND
2014-12-161412B52-002-POCSND
2015-01-211501C24-009 2ND
2015-01-261501F18-002-POCSND
2015-01-281501F88-003-POCSND
2015-01-281501F88-002-POCSND
2015-01-281501F88-005-POCSND
2015-02-181501C24-0090.540 ppb
2015-02-241502E53-002ND
2015-02-261502G34-003-POCSND
2015-03-061503416-003 2ND
2015-03-061503416-006ND
2015-03-141503A00-002ND
2015-03-181503C39-003ND
2015-03-241503G35-002-POCSND
2015-03-261503I53-002-POCSND
2015-04-131504864-002-POCSND
2015-04-221504G72-002-POCSND
2015-04-221504G72-004ND
2015-04-281504L79-002ND
2015-04-291504M31-003ND
2015-05-121505797-003ND
2015-05-181505C59-002ND
2015-05-181505C59-004ND
2015-05-281505K28-002-POCSND
2015-05-281505K29-002-POCSND
2015-06-091506720-003-POCSND
2015-06-151506B85-002-POCSND
2015-06-151506B85-004-POCSND
2015-06-181506F25-002-POCSND
2015-06-251506K92-002-POCSND
2015-07-061507309-002-POCSND
2015-07-061507309-005-POCSND
2016-01-041601041-0020.550 ppb
2016-01-111601617-002ND
2016-01-121601763-002ND
2016-01-261601G96-003ND
2016-01-291601K21-002ND
2016-02-011602021-002ND
2016-02-161602B20-0020.540 ppb
2016-02-161602B20-007ND
2016-02-231602G01-002ND
2016-02-251602I34-002ND
2016-03-021603174-004ND
2016-03-071603483-002-POCND
2016-03-071603483-004-POCND
2016-03-081603586-003ND
2016-04-041604171-002ND
2016-04-061604499-002ND
2016-04-191604H52-003ND
2016-04-201604J61-002ND
2016-04-221604L23-002ND
2016-05-051605411-002ND
2016-05-091605707-005ND
2016-05-091605707-002ND
2016-05-231605K51-002ND
2016-06-011606098-005ND
2016-06-011606098-007ND
2016-06-011606098-009ND
2016-06-011606098-002ND
2016-07-061607380-005ND
2016-07-061607380-0070.640 ppb
2016-07-061607380-0020.640 ppb
2016-07-061607378-002ND
2016-07-211607I30-002ND
2016-08-011608065-003ND
2016-08-011608059-0020.520 ppb
2016-08-011608056-002ND
2016-08-011608065-0050.580 ppb
2016-08-021608178-002ND
2016-09-121609860-003ND
2016-09-121609857-007ND
2016-09-121609860-0070.660 ppb
2016-09-121609857-0020.590 ppb
2016-09-221609J77-002POCND
2016-10-047012640060.650 ppb
2016-10-04701264002ND
2016-10-20702529002-POCND
2016-10-20702532003-POCND
2016-10-20702532008-POCND
2016-11-09704070002-POCND
2016-11-09704072001-POCND
2016-11-16704697005-POCND
2016-11-16704697003-POCND
2016-12-01705804006-POCND
2016-12-01705804003-POCND
2016-12-01705804002-POCND
2016-12-09706493004ND
2016-12-09706493002ND
2017-01-10708709003-POCND
2017-01-10708709005-POCND
2017-01-20709582008-POCND
2017-02-077010715002-POC1.80 ppb
2017-02-077010715003-POC1.70 ppb
2017-02-167011510002ND
2017-02-167011510005ND
2017-02-167011510008ND
2017-03-027012474010-POCND
2017-03-027012474002-POCND
2017-03-027012474008-POCND
2017-03-027012474003-POCND
2017-03-067012667003-POCND
2017-04-147015913002-POCND
2017-04-147015914003-POCND
2017-04-147015914005ND
2017-04-187016140003-POCND
2017-04-187016140005-POCND
2017-05-017017406002-POCND
2017-05-027017406004-POCND
2017-05-097018101003ND
2017-05-117018383004-POCND
2017-05-117018383002-POCND
2017-05-167018723002ND
2017-06-027020216006-POCND
2017-06-027020216004-POCND
2017-06-027020216002-POCND
2017-06-057020314003ND
2017-06-077020598002-POCND
2017-06-197021712002-POCND
2017-07-077023402007-POCSND
2017-07-077023402005-POCSND
2017-07-077023402002-POCSND
2017-07-077023402009-POCSND
2017-07-277025407002-POCSND
2017-08-017025817004-POCND
2017-08-017025817002-POCND
2017-08-017025817007-POCND
2017-08-027025918002-POCND
2017-08-107026748002-POCS0.530 ppb
2017-09-057028824002--POC0.940 ppb
2017-09-057028824004-POCND
2017-09-067028970003-POCND
2017-09-217030649002-POC1.10 ppb
2017-10-027031539004-POC1.000 ppb
2017-10-027031539002-POCND
2017-10-137032867003-POCND
2017-10-207033645002-POC1.10 ppb
2017-11-017034487002-POC1.20 ppb
2017-11-067034915003-POCND
2017-11-097035249002-POC0.870 ppb
2017-11-147035631002-POCND
2017-11-217036283002-POCND
2017-12-057037151007-POC0.900 ppb
2017-12-057037151005-POCND
2017-12-057037151002-POCND
2017-12-157038328002-POCND
2018-01-177040661002-POC0.990 ppb
2018-02-017041856002-POC1.20 ppb
2018-02-147042892003ND
2018-02-157043039002ND
2018-03-0270443560021.20 ppb
2018-03-057044412002ND
2018-03-2370460700051.20 ppb
2018-03-237046070003ND
2018-04-047047267003-POCND
2018-04-177048677002ND
2018-04-1970489840011.20 ppb
2018-05-047050558004ND
2018-05-0470505580021.000 ppb
2018-05-147051534003ND
2018-05-1670517800021.10 ppb
2018-06-0670539250040.870 ppb
2018-06-067053925002ND
2018-06-067053925007ND
2018-07-0370571280021.20 ppb
2018-07-097057451005ND
2018-07-097057451002ND
2018-07-097057449002-POCND
2018-07-2370591020021.20 ppb
2018-08-037060362002-POCND
2018-08-067060490007-POCND
2018-08-067060490002-POCND
2018-08-067060491002-POC1.20 ppb
2018-08-067060490004-POCND
2018-08-147061466002-POCND
2018-08-2070620750041.30 ppb
2018-09-107064170004ND
2018-09-1070641700061.30 ppb
2018-09-107064170002ND
2018-09-117064331003ND
2018-09-137064731002ND
2018-09-2470656850041.30 ppb
2018-10-0270665998002ND
2018-10-027066598006ND
2018-10-027066598004ND
2018-10-0970672870021.30 ppb
2018-10-107067513003ND
2018-10-1570679490031.20 ppb
2018-10-3170695970021.20 ppb
2018-11-067070094002ND
2018-11-087070473007ND
2018-11-087070473002ND
2018-11-087070473004ND
2018-11-1470710070021.30 ppb
2018-11-2970723770021.30 ppb
2018-12-037072590002ND
2018-12-077073216003ND
2018-12-0770732160051.30 ppb
2018-12-117073583003ND
2018-12-1770741360021.20 ppb
2019-01-107076237002ND
2019-01-117076402002ND
2019-01-2370773990021.40 ppb
2019-01-287077687003ND
2019-02-067078591003ND
2019-02-067078593002ND
2019-02-147079547002ND
2019-02-257080538002ND
2019-03-047081154005ND
2019-03-047081154007ND
2019-03-047081154002ND
2019-03-117081923002ND
2019-04-027084127002ND
2019-04-107085276002ND
2019-05-037088110002ND
2019-05-037088110006ND
2019-06-067092430004ND
2019-06-1170931020050.820 ppb
2019-07-267099010005-POCND
2019-07-267099010007-POC1.50 ppb
2019-08-09701005810061.80 ppb
2019-08-0970100581002ND
2019-09-10701042500022.30 ppb
2019-09-2470106028002ND
2019-10-31701103010021.70 ppb
2019-11-13701117040022.50 ppb