Dichlorodifluoromethane
Norwalk Water Department
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 12 | 0 | ND |
2015 | ND | 18 | 0 | ND |
2016 | ND | 12 | 0 | ND |
2017 | ND | 12 | 0 | ND |
2018 | ND | 12 | 0 | ND |
2019 | ND | 14 | 0 | ND |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-02-19 | 9588-012-0930 | ND |
2014-02-19 | 9588-003-1000 | ND |
2014-02-19 | 9588-002-1030 | ND |
2014-04-29 | 9588-012-0950 | ND |
2014-04-29 | 9588-003-1018 | ND |
2014-04-29 | 9588-002-1029 | ND |
2014-07-23 | 9588-012-0945 | ND |
2014-07-23 | 9588-003-1010 | ND |
2014-07-23 | 9588-002-1025 | ND |
2014-12-10 | 9588-012-0924 | ND |
2014-12-10 | 9588-003-0945 | ND |
2014-12-10 | 9588-002-1020 | ND |
2015-03-25 | 9588-003-0940 | ND |
2015-03-25 | 9588-012-0926 | ND |
2015-03-25 | 9588-002-0953 | ND |
2015-04-23 | 9588-012-0947 | ND |
2015-04-23 | 9588-012-0947 | ND |
2015-04-23 | 9588-003-1024 | ND |
2015-04-23 | 9588-003-1024 | ND |
2015-04-23 | 9588-002-1041 | ND |
2015-04-23 | 9588-002-1041 | ND |
2015-07-30 | 9588-002-1044 | ND |
2015-07-30 | 9588-002-1044 | ND |
2015-07-30 | 9588-012-0928 | ND |
2015-07-30 | 9588-003-1015 | ND |
2015-07-30 | 9588-003-1015 | ND |
2015-07-30 | 9588-012-0928 | ND |
2015-10-28 | 9588-002-1000 | ND |
2015-10-28 | 9588-012-0915 | ND |
2015-10-28 | 9588-003-0945 | ND |
2016-03-24 | 9588-012-0940 | ND |
2016-03-24 | 9588-003-1010 | ND |
2016-03-24 | 9588-002-1024 | ND |
2016-06-09 | 9588-012-0909 | ND |
2016-06-09 | 9588-002-0945 | ND |
2016-06-09 | 9588-003-0923 | ND |
2016-07-20 | 9588-003-0945 | ND |
2016-07-20 | 9588-012-0915 | ND |
2016-07-20 | 9588-002-1015 | ND |
2016-10-12 | 9588-002-0957 | ND |
2016-10-12 | 9588-012-0914 | ND |
2016-10-12 | 9588-003-0928 | ND |
2017-01-18 | 9588-002-0935 | ND |
2017-01-18 | 9588-012-0900 | ND |
2017-01-18 | 9588-003-0920 | ND |
2017-04-17 | 9588-002-0930 | ND |
2017-04-17 | 9588-003-0952 | ND |
2017-04-17 | 9588-012-0910 | ND |
2017-07-24 | 9588-002-1028 | ND |
2017-07-24 | 9588-003-0955 | ND |
2017-07-24 | 9588-012-0923 | ND |
2017-10-18 | 9588-002-0950 | ND |
2017-10-18 | 9588-012-0914 | ND |
2017-10-18 | 9588-003-0940 | ND |
2018-01-24 | 9588-002-0940 | ND |
2018-01-24 | 9588-003-0920 | ND |
2018-04-11 | 9588-002-0953 | ND |
2018-04-11 | 9588-002-0953 | ND |
2018-04-11 | 9588-003-0930 | ND |
2018-04-11 | 9588-003-0930 | ND |
2018-07-25 | 9588-002-1000 | ND |
2018-07-25 | 9588-002-1000 | ND |
2018-07-25 | 9588-003-0935 | ND |
2018-07-25 | 9588-003-0935 | ND |
2018-10-26 | 9588-002-0940 | ND |
2018-10-26 | 9588-003-0920 | ND |
2019-01-23 | 9588-002-0950 | ND |
2019-01-23 | 9588-003-0920 | ND |
2019-04-25 | 9588-002-1030 | ND |
2019-04-25 | 9588-003-1005 | ND |
2019-05-24 | 9588-012-0920 | ND |
2019-05-24 | 9588-012-0920 | ND |
2019-07-25 | 9588-012-0930 | ND |
2019-07-25 | 9588-012-0930 | ND |
2019-07-25 | 9588-003-1010 | ND |
2019-07-25 | 9588-002-1035 | ND |
2019-10-25 | 9588-012-0930 | ND |
2019-10-25 | 9588-012-0930 | ND |
2019-10-25 | 9588-002-1000 | ND |
2019-10-25 | 9588-003-1040 | ND |