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EWG's Tap Water Database — 2019 UPDATE

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Chlorodifluoromethane

Jefferson County PWSD 3

NOTE: Jefferson County PWSD 3 purchases water from Missouri American St. Louis County & St. Charles County which is required to test for chlorodifluoromethane. Sample information shown below was taken by Missouri American St. Louis County & St. Charles County.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND40ND
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

All test results

NOTE: Jefferson County PWSD 3 purchases water from Missouri American St. Louis County & St. Charles County which is required to test for chlorodifluoromethane. Sample information shown below was taken by Missouri American St. Louis County & St. Charles County.

Date Lab ID Result
2013-02-0521018301ND
2013-02-0521019901ND
2013-02-0521020101ND
2013-02-0621016401ND
2013-02-0621017401ND
2013-05-0921801201ND
2013-05-0921801001ND
2013-05-0921799401ND
2013-05-0921798501ND
2013-05-0921797501ND
2013-08-0823174601ND
2013-08-0823174401ND
2013-08-0823172801ND
2013-08-0823171901ND
2013-08-0823170901ND
2013-11-0523931601ND
2013-11-0523933501ND
2013-11-0623932601ND
2013-11-0623935101ND
2013-11-0623935301ND