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EWG's Tap Water Database — 2021 UPDATE

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Dichlorodifluoromethane

West Hempstead WD

Dichlorodifluoromethane (Freon-12) is a refrigerant, solvent and aerosol propellant banned in 2000 under the Montreal Protocol because of its ozone-depleting properties. Freons can cause heart, nervous system and liver damage.

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261

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
20140.0866 ppb446ND - 0.690 ppb
20150.0409 ppb221ND - 0.900 ppb
2016ND200ND
20170.0908 ppb375ND - 1.10 ppb
20180.267 ppb6516ND - 1.60 ppb
20190.232 ppb7311ND - 2.50 ppb

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-141402727-003-POCSND
2014-02-141402727-005-POCSND
2014-02-141402727-007-POCSND
2014-02-141402727-006-POCS0.600 ppb
2014-02-141402727-002-POCSND
2014-02-141402727-001-POCSND
2014-02-251402C91-001-POCSND
2014-03-031403078-001-POCSND
2014-03-121403827-001-POCSND
2014-03-181403C98-001-POCS0.510 ppb
2014-03-241403G61-001-POCS0.680 ppb
2014-04-031404267-001-POCSND
2014-04-081404593-001-POCS0.670 ppb
2014-04-101404856-002-POCSND
2014-04-101404856-003-POCSND
2014-04-101404845-002ND
2014-04-101404856-005-POCSND
2014-04-101404856-006-POCS0.660 ppb
2014-04-101404856-001-POCSND
2014-04-101404856-007-POCSND
2014-04-171404D32-001-POCSND
2014-04-221404F79-001-POCS0.690 ppb
2014-05-081405558-001-POCSND
2014-05-201405E49-001-POCSND
2014-06-031406152-001-POCSND
2014-06-191406E65-001-POCSND
2014-07-0214071417-001-POCND
2014-07-161407B62-001-POCSND
2014-07-161407B62-002-POCSND
2014-07-311407M11-001-POCSND
2014-08-141408A43-006-POCSND
2014-08-141408A43-002-POCSND
2014-08-141408A43-001-POCSND
2014-08-141408A43-003-POCSND
2014-08-141408A43-004-POCSND
2014-08-271408J30-001-POCSND
2014-09-111409900-001-POCSND
2014-09-231409H31-001-POCSND
2014-10-071410476-001-POCSND
2014-10-291410J23-002-POCSND
2014-10-291410J23-003-POCSND
2014-11-031411057-001-POCSND
2014-11-031411057-002-POCSND
2014-12-101412768-001-POCSND
2015-02-041502239-002-POCSND
2015-02-041502239-001-POCSND
2015-02-051502278-001-POCSND
2015-02-051502278-002-POCSND
2015-04-131504871-001-POCSND
2015-04-131504871-002-POCSND
2015-04-151504A92-001-POCSND
2015-04-151504A92-002-POCSND
2015-07-301507M16-002-POCSND
2015-07-301507M16-001-POCSND
2015-07-301507M16-003-POCSND
2015-08-041508231-002-POCSND
2015-08-041508231-001-POCSND
2015-10-071510523-005-POCSND
2015-10-071510523-002-POCSND
2015-10-071510523-001-POCSND
2015-10-071510523-003-POCSND
2015-10-0715105230-004-POC0.900 ppb
2015-10-161510C63-001-POCSND
2015-10-201510F97-001-POCSND
2015-10-271510K91-001-POCSND
2015-11-041511276-001-POCSND
2016-01-131601860-005-POCSND
2016-01-131601860-004-POCSND
2016-01-131601860-002-POCSND
2016-01-131601860-003-POCSND
2016-05-041605330-001-POCSND
2016-05-041605330-004-POCSND
2016-05-041605330-002-POCSND
2016-05-121605B21-004-POCSND
2016-05-121605B21-001-POCSND
2016-05-121605B21-003-POCSND
2016-05-19605I21-004-POCSND
2016-06-281606R83-001-POCSND
2016-07-201607H24-001-POCSND
2016-07-201607H23-001-POCSND
2016-07-201607H23-002-POCSND
2016-07-201607H24-005-POCSND
2016-07-201607H26-001-POCSND
2016-07-201607H24-004-POCSND
2016-11-07703860001ND
2016-11-07703860002ND
2017-01-12708978008ND
2017-01-127089780091.10 ppb
2017-01-25709857002ND
2017-01-25709857003ND
2017-01-25709857001ND
2017-01-25709857004ND
2017-01-2770100480010.630 ppb
2017-01-3070101400010.630 ppb
2017-05-037017655003ND
2017-05-037017655002ND
2017-05-037017655001ND
2017-05-037017655004ND
2017-06-147021356002ND
2017-06-147021356001ND
2017-07-107023616002ND
2017-07-127023857005ND
2017-07-127023857001ND
2017-07-127023857002ND
2017-07-127023857004ND
2017-07-127023857003ND
2017-07-197024675007ND
2017-07-247025073003ND
2017-10-187033286001-POCSND
2017-10-1870332860020.500 ppb
2017-10-187033286002-POCS0.500 ppb
2017-10-187033286001ND
2017-10-237033788001ND
2017-10-257034108004ND
2017-10-257031408001ND
2017-10-257034108002ND
2017-11-037034734001ND
2017-11-087035124002ND
2017-11-087035124001ND
2017-11-147035683001ND
2017-11-147035683002ND
2017-11-207036307002ND
2017-11-207036307001ND
2018-01-297041548005ND
2018-01-297041548007ND
2018-01-2970415480040.600 ppb
2018-01-297041548001ND
2018-01-297041548003ND
2018-02-027041915001ND
2018-02-067042140002ND
2018-02-0670421400010.610 ppb
2018-02-2170435170050.600 ppb
2018-02-277043988002ND
2018-02-277043988003ND
2018-02-2770439880010.540 ppb
2018-03-147045340001ND
2018-04-117048032007ND
2018-04-117048032003ND
2018-05-097051070007ND
2018-05-097051070001ND
2018-05-097051070009ND
2018-05-097051070002ND
2018-05-0970510700080.840 ppb
2018-05-097051070004ND
2018-05-2970529900011.20 ppb
2018-06-0770541580010.920 ppb
2018-07-127058043001ND
2018-07-127058043004ND
2018-07-127058043005ND
2018-07-127058043003ND
2018-07-127058043002ND
2018-07-257059403004ND
2018-07-2570594030021.30 ppb
2018-07-257059403001ND
2018-07-307059795001ND
2018-07-307059795002ND
2018-07-3070603740011.000 ppb
2018-08-037060374002ND
2018-08-087060867008ND
2018-08-0870608670070.950 ppb
2018-08-087060867002ND
2018-08-087060867004ND
2018-08-087060867003ND
2018-08-147061678001ND
2018-08-147061458001ND
2018-08-157061678003ND
2018-08-157061678002ND
2018-08-2870629810011.60 ppb
2018-09-067063920007ND
2018-10-107067472008ND
2018-10-107067472007ND
2018-10-1070674720061.30 ppb
2018-10-107067472005ND
2018-10-107067472004ND
2018-10-107067472002ND
2018-10-107067472001ND
2018-10-227068648001ND
2018-10-2270686480021.40 ppb
2018-10-2970693570021.50 ppb
2018-10-297069357001ND
2018-11-0870704710031.50 ppb
2018-11-087070471002ND
2018-11-087070471001ND
2018-11-1470711160011.50 ppb
2018-11-147071116002ND
2018-11-307072502002ND
2018-11-307072502001ND
2018-12-057072906007ND
2019-01-1670768140072.50 ppb
2019-01-167076814004ND
2019-01-167076814008ND
2019-01-167076814001ND
2019-01-167076814005ND
2019-01-167076814002ND
2019-01-237077404001ND
2019-04-107085363001ND
2019-04-107085363004ND
2019-04-107085363005ND
2019-04-107085363011ND
2019-04-1070853630022.30 ppb
2019-04-107085363003ND
2019-04-107085363006ND
2019-05-017087793004ND
2019-05-017087793002ND
2019-05-017087793001ND
2019-05-087088904001ND
2019-05-137089255001ND
2019-05-157089512001ND
2019-05-207090136002ND
2019-05-207090136001ND
2019-05-297091299001ND
2019-05-297091299002ND
2019-06-067092440003ND
2019-06-067092440001ND
2019-06-097092440004ND
2019-06-187094131001ND
2019-06-187094131002ND
2019-06-267095714001ND
2019-06-287095864001ND
2019-07-027096099001ND
2019-07-027096099002ND
2019-07-257098863004ND
2019-07-257098863001ND
2019-07-257098863003ND
2019-07-257098863002ND
2019-07-257098863005ND
2019-07-2970991980011.90 ppb
2019-08-0870100445002ND
2019-08-13701012780031.60 ppb
2019-08-1370101278001ND
2019-08-1370101278002ND
2019-08-1470101278007ND
2019-08-1470101278006ND
2019-08-2070102025002ND
2019-08-2070102025003ND
2019-08-20701020250041.50 ppb
2019-08-2070102025001ND
2019-09-0470103640003ND
2019-09-047010364004ND
2019-09-04701036400021.90 ppb
2019-09-0470103640001ND
2019-09-0470103640005ND
2019-09-1070104348008ND
2019-09-10701043480071.80 ppb
2019-09-1070104348002ND
2019-09-1070104348004ND
2019-09-1070104348003ND
2019-09-1870105411004ND
2019-09-1870105411003ND
2019-10-09701079210051.000 ppb
2019-10-0970107921004ND
2019-10-0970107921002ND
2019-10-0970107921006ND
2019-10-1070108059002-POCSND
2019-10-1070108059007ND
2019-10-1070107921001ND
2019-10-24701096270011.20 ppb
2019-10-29701100580010.680 ppb
2019-11-0770111128003ND
2019-11-14701118410010.530 ppb
2019-12-1170114945003ND