1,3-Butadiene
City of Chesapeake - Western Branch System
NOTE: City of Chesapeake - Western Branch System purchases water from City of Portsmouth which is required to test for 1,3-butadiene. Sample information shown below was taken by City of Portsmouth.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | ND | 2 | 0 | ND |
2014 | ND | 2 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.0103 ppb
The EWG Health Guideline of 0.0103 ppb for 1,3-butadiene 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
NOTE: City of Chesapeake - Western Branch System purchases water from City of Portsmouth which is required to test for 1,3-butadiene. Sample information shown below was taken by City of Portsmouth.
Date | Lab ID | Result |
---|---|---|
2013-01-11 | 201301170718AM | ND |
2013-04-09 | 201304110612AM | ND |
2013-07-08 | 201307090245AM | ND |
2013-10-01 | 201310030468AM | ND |