Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dichlorodifluoromethane

City Of Rio Vista

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.

MORE ABOUT THIS CONTAMINANT

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND10ND
2016ND60ND
2017ND80ND
2018ND140ND
2019ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-07-075867-005-0935ND
2014-07-075867-004-0955ND
2014-07-075867-001-0855ND
2015-07-065867-001-0840ND
2016-07-225867-001-1105ND
2016-07-225867-005-1135ND
2016-07-225867-004-1045ND
2016-12-055867-004-0900ND
2016-12-055867-005-1023ND
2016-12-155867-001-1057ND
2017-05-045867-016-1037ND
2017-05-045867-016-1037ND
2017-07-125867-004-1157ND
2017-07-125867-005-1142ND
2017-09-125867-016-1220ND
2017-09-125867-016-1220ND
2017-12-075867-016-1115ND
2017-12-075867-016-1115ND
2018-03-055867-016-1225ND
2018-03-055867-016-1225ND
2018-03-265867-015-0935ND
2018-03-265867-003-1025ND
2018-03-265867-015-0935ND
2018-03-265867-003-1025ND
2018-04-025867-014-1040ND
2018-04-025867-014-1040ND
2018-04-025867-007-1115ND
2018-04-025867-007-1115ND
2018-06-045867-016-1155ND
2018-06-045867-016-1155ND
2018-07-025867-005-1125ND
2018-07-025867-004-1110ND
2019-07-015867-004-1330ND
2019-07-015867-005-1320ND
2019-12-025867-004-1215ND
2019-12-025867-005-1245ND