Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Chloromethane

Santa Clarita Water Division

Chloromethane is an industrial solvent, aerosol propellant and a refrigerant. It also forms as a byproduct of water disinfection. The EPA classifies chloromethane as possibly carcinogenic to humans.

MORE ABOUT THIS CONTAMINANT

 

106

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND390ND
2015ND110ND
2016ND150ND
2017ND150ND
2018ND130ND
2019ND130ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 2.69 ppb

The EWG Health Guideline of 2.69 ppb for chloromethane was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-16201401170105AMND
2014-01-16201401170103AMND
2014-04-09201404110087AMND
2014-04-09201404110068AMND
2014-04-09201404110128AMND
2014-04-09201404110126AMND
2014-04-09201404110093AMND
2014-04-09201404110120AMND
2014-04-09201404110130AMND
2014-04-09201404110118AMND
2014-04-09201404110132AMND
2014-04-10201404110110AMND
2014-04-10201404110099AMND
2014-04-10201404110070AMND
2014-06-112104-002-1010ND
2014-06-112104-006-0950ND
2014-06-112104-007-0845ND
2014-06-112104-008-1035ND
2014-06-112104-009-1030ND
2014-06-112104-012-0955ND
2014-06-112104-013-1100ND
2014-06-112104-014-1110ND
2014-06-112104-015-0920ND
2014-06-112104-016-1025ND
2014-06-112104-025-1000ND
2014-06-112104-039-0830ND
2014-06-112104-040-0855ND
2014-07-16201407160886AMND
2014-07-16201407160902AMND
2014-10-15201410150581AMND
2014-10-15201410150585AMND
2014-10-15201410150599AMND
2014-10-15201410150597AMND
2014-10-15201410150583AMND
2014-11-20201411200720AMND
2014-11-20201411200722AMND
2014-11-20201411200724AMND
2014-11-20201411200726AMND
2014-11-20201411200728AMND
2015-06-032104-002-0950ND
2015-06-032104-006-0945ND
2015-06-032104-007-0920ND
2015-06-032104-012-0825ND
2015-06-032104-015-0845ND
2015-06-032104-016-0840ND
2015-06-032104-019-0900ND
2015-06-032104-039-1035ND
2015-06-032104-040-0905ND
2015-06-102104-009-0845ND
2015-08-272104-025-0945ND
2016-01-299590-013-1110ND
2016-03-292104-014-1335ND
2016-06-012104-002-0935ND
2016-06-012104-006-0915ND
2016-06-012104-007-1020ND
2016-06-012104-009-0900ND
2016-06-012104-012-0950ND
2016-06-012104-013-1020ND
2016-06-012104-014-1030ND
2016-06-012104-015-1040ND
2016-06-012104-016-0850ND
2016-06-012104-019-0835ND
2016-06-012104-025-0940ND
2016-06-012104-039-1010ND
2016-06-012104-040-1030ND
2017-02-012104-008-0950ND
2017-06-082104-006-1115ND
2017-06-082104-007-0920ND
2017-06-082104-008-1145ND
2017-06-082104-009-0945ND
2017-06-082104-012-1120ND
2017-06-082104-013-1030ND
2017-06-082104-014-1050ND
2017-06-082104-015-1015ND
2017-06-082104-016-0950ND
2017-06-082104-019-1000ND
2017-06-082104-025-1030ND
2017-06-082104-039-0940ND
2017-10-042104-002-0849ND
2017-12-042104-040-1345ND
2018-06-062104-002-1030ND
2018-06-062104-006-1000ND
2018-06-062104-007-0840ND
2018-06-062104-008-1030ND
2018-06-062104-009-1015ND
2018-06-062104-012-1045ND
2018-06-062104-013-0900ND
2018-06-062104-014-0920ND
2018-06-062104-016-1010ND
2018-06-062104-019-0845ND
2018-06-062104-025-1110ND
2018-06-062104-039-0920ND
2018-06-062104-040-0855ND
2019-06-052104-002-1125ND
2019-06-052104-006-1135ND
2019-06-052104-008-1013ND
2019-06-052104-009-0950ND
2019-06-052104-012-1051ND
2019-06-052104-013-0902ND
2019-06-052104-014-0848ND
2019-06-052104-016-0959ND
2019-06-052104-019-0834ND
2019-06-052104-025-1037ND
2019-06-052104-039-0905ND
2019-06-052104-040-0923ND
2019-08-072104-007-0930ND