UPDATED SHIPPING INFORMATION
NGWA and The Groundwater Foundation will be closed on the following dates:
- Tuesday, December 24 through Sunday, December 29
- Tuesday, December 31 through Sunday, January 5
All orders placed during the closure will be processed on the next open business day. We appreciate your understanding and wish you a happy holiday season!
Also, please note that Awesome Aquifers must be shipped using the Awesome Aquifer shipping option.
Guide for Using Hydrogeologic Classification System for Logging Well Boreholes
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By Thomas M. Hanna
NGWA Press
This spiral-bound book offers detailed direction on how to utilize the hydrogeologic classification system for logging water well boreholes.
The system, which uses a weather-resistant, two-sided card, provides structure and uniformity to logging wells. The front of the card provides essential gauges for measuring size, color, and aquifer characteristics. The back contains an easy-to-follow flowchart of how to use the classification system.
The author created the system and his text is easy to follow and accompanied by pictures. The book will enable groundwater professionals to provide better correlation and interpretation of borehole logs.
2006 / 18 pages and field guide card
Catalog #T1030
Price:
NGWA member — $55.00
Nonmember — $60.00