February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index

As a consulting hydrogeologist to municipalities and public water suppliers, Jesse Schwalbaum has been teaching the basic principles of groundwater science to the public for almost 20 years. This book has grown out of countless informal hydrology lectures he has given at public meetings, court rooms and in written reports.

The first of the five texts in AWWAUs popular training series, this third edition introduces operator trainees to the basic information related to the raw sources of drinking water supply. Filled with clarifying photos and illustrations.