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EWG's Tap Water Database — 2021 UPDATE

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Dichlorodifluoromethane

City of Morgan Hill

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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40

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
2014ND50ND
2015ND30ND
2016ND120ND
2017ND60ND
2018ND20ND
2019ND120ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-05-125810-032-0920ND
2014-05-125810-017-1015ND
2014-05-285810-012-0930ND
2014-06-235810-010-0815ND
2014-09-105810-043-0800ND
2015-05-185810-002-0900ND
2015-05-275810-043-0755ND
2015-07-211610-001-1010ND
2016-05-095867-008-0815ND
2016-05-095867-009-0900ND
2016-05-095867-016-0730ND
2016-05-095867-015-0930ND
2016-05-165867-040-0830ND
2016-05-165867-043-0740ND
2016-08-221610-015-1000ND
2016-08-221610-043-0730ND
2016-08-221610-009-0930ND
2016-08-221610-016-0900ND
2016-08-221610-008-0830ND
2016-08-221610-040-0800ND
2017-05-089588-017-0900ND
2017-05-089588-032-0800ND
2017-05-221610-012-0720ND
2017-08-141610-012-0900ND
2017-08-141610-017-0830ND
2017-08-141610-032-0800ND
2018-10-301610-001-0930ND
2018-12-111610-001-0730ND
2019-05-071610-040-0715ND
2019-05-071610-016-0930ND
2019-05-071610-015-0830ND
2019-05-071610-043-0630ND
2019-05-071610-009-0800ND
2019-05-071610-008-1000ND
2019-09-101610-016-0900ND
2019-09-101610-040-1000ND
2019-09-101610-015-0800ND
2019-09-101610-043-0940ND
2019-09-101610-009-0730ND
2019-09-101610-008-0830ND