Direct Image by Geoprobe

This site consists of silts and clays to about 10.7 to 12.2 m, which is underlain by sands and gravels. A clay layer is located between 15 and 18 m at location GP3. During each push the HPT probe was stopped at each location noted on the logs below. There, the water was tunrned off and pressure was allowed to dissipate. Static water levels were recorded approximately every meter in the sand and gravel layer, and calculations showed that the water level at GP1 was about 1.8 m below ground surface. However, static water levels recorded at location GP3 showed that the piezometric level was approximately 2.9 m above ground surface, indicating artesian conditions. Artesian flow was confirmed by installing casing in the sands and extending it to approximately 2.9 m above ground surface.