Timestamp_local     ISO_DateTime_UTC     Spec_pH_AVG  
2017-02-27 12:28    2017-02-27T13:28Z    7.262        
2017-02-27 13:08    2017-02-27T14:08Z    7.365        
2017-02-27 13:48    2017-02-27T14:48Z    7.454        
2017-02-27 14:26    2017-02-27T15:26Z    7.550        
2017-02-27 15:06    2017-02-27T16:06Z    7.651        
2017-02-27 15:47    2017-02-27T16:47Z    7.751        
2017-02-27 16:25    2017-02-27T17:25Z    7.861        
2017-02-27 16:59    2017-02-27T17:59Z    7.966        
2017-02-27 17:48    2017-02-27T18:48Z    8.064        
2017-02-27 18:24    2017-02-27T19:24Z    8.153        
2017-02-27 18:58    2017-02-27T19:58Z    8.246