Joseph F. Poland (hydrologist)

[2] He pioneered invaluable research on the subject throughout his career at United States Geological Survey (USGS).

[3] In the same year, he returned to the United States to earn his master's degree in geology from Stanford University in 1935.

[1] In 1956 he led a survey to investigate aquifer mechanics and the causes of land subsidence in Sacramento, California.

[6] His meticulous and innovative research inspired students, earned him awards, and international recognition of his expertise.

[6] Additionally he was called upon as an expert witness for land subsidence that occurred in Wilmington Oil Field in California.

The case was brought by the U.S. Navy and the City of Long Beach against the company for the damages caused by the land subsidence.

[9] Land elevation loss from excessive ground water pumping is memorialized in the telephone pole photo taken in the San Joaquin Valley.

[12] The utility pole pictured is located is southwest of Mendota on the western side of the San Joaquin valley, east of I-5, on Panoche Avenue.

[17][18] "This unusual volume serves to inform both the layman as well as geological and engineering specialists of the causes for and innovative techniques to avoid or mitigate subsidence in action.