1,3-Butadiene
San Antonio Water System Northeast
12
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | ND | 5 | 0 | ND |
2014 | ND | 7 | 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
Date | Lab ID | Result |
---|---|---|
2013-10-08 | 201310110250AM | ND |
2013-10-08 | 201310110248AM | ND |
2013-10-08 | 201310110244AM | ND |
2013-10-08 | 201310110242AM | ND |
2013-10-08 | 201310110246AM | ND |
2014-01-24 | 201401270007AM | ND |
2014-04-14 | 201404150345AM | ND |
2014-04-14 | 201404150333AM | ND |
2014-04-14 | 201404150337AM | ND |
2014-04-14 | 201404150335AM | ND |
2014-04-15 | 201404160660AM | ND |
2014-07-25 | 201407260066AM | ND |