Tetrahydrofuran
City of Graham
Tetrahydrofuran is a solvent used for production of polyvinyl chloride (PVC) plastics and adhesives.
6
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | 39.6 ppb | 1 | 1 | 39.6 ppb |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | 2.77 ppb | 1 | 1 | 2.77 ppb |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-08-13 | Q1436357003 | ND |
| 2015-09-24 | Q1537677003 | 39.6 ppb |
| 2016-09-22 | Q1639469004 | ND |
| 2017-09-05 | Q1740831002 | ND |
| 2018-08-20 | Q1833239003 | 2.77 ppb |
| 2019-09-18 | Q1966402001 | ND |