TOXIC SUBSTANCES IN AGRICULTURAL WATER SUPPLY AND DRAINAGE: DEFINING THE PROBLEM

1. Toxics in agricultural drainage in California's central valley / William H. Crooks 2. San Joaquin valley evaporation basins - A threat to wildlife / George D. Nokes and Edward S. Smith 3. Criteria for application of trace elements in irrigation water. are they adequate? / Richard O. Burati 4. Evaporation basins - Environmental disaster or economic necessity / S. K. Hall 5. Agricultural drainage water management problem in westlands water district / William R. Johnston and ron C. Steinert 6. Irrigation drainage flats, salinity and trace element relationships in broadview water district / Mike Day and Daniel O. Nelson 7. Hydrogeologic aspects of subsurface drainage / Kenneth D. Schmidt 8. Irrigation, drainage and environment in California's central valley basins / Zack Willey 9. Chemical composition and variability of soils in the Western San Joaquin valley, California / R. C. Severson, R. R. Tidball and S. A. Wilson 10. Keynote address / Gordon K. van Vleck 11. Luncheon address / C. Dale Duvall 12. Overview of selenium activity in Montana / Marvin R. Miller 13. Agricultural waste-waters and wildlife: An overview / Daniel E. Willard 14. Toxic effects of selenium on man / Oscar E. Olson 15. Carcinogens in drinking water and water quality standards / Vernon N. Honk 16. One man's waste, another man's water: the agricultural water use dilemma / Gregory J. Hobbs, Jr. and Bennett W. Raley 17. Excursion from chemigation backflow / Roy F. Spalding and Ralph E. Cady 18. Irrigation and drainage toxicity studies in the upper Colorado region / Jerry B. Miller 19. Standard procedures and methodologies used in testing toxic substances in water / Howard E. Taylor 20. Effects of selenium on fish and other aquatic life / A. Dennis Lemly 21. Agriculture, irrigation and water quality / Jan van Schilfgaarde 22. Agricultural irrigation and groundwater quality in humid areas of the United States / James H. Krider 23. Consultant role and qualifications in evaluating toxics in agriculture / Gary J. Hermann and Robert W. Charley 24. Irrigation, drainage, markets and policies: their current environmental implications / Daniel J. Dudek 25. U.S. department of the interior investigations of irrigation - Induced contamination problems / Jonathan P. Deason 26. Toxics in agricultural water supply and drainage - How real a problem? / A. J. Englande 27. Surface runoff and groundwater impacts from agricultural activities in the Chesapeake region / Court Stevenson, Kenneth Staver and Russell Brinsfield.... 28. Legal consequences of toxics in agricultural drainage / Michael A. Campos 29. Fish and wildlife service interests in irrigation drainwater / Edward LaRoe 30. Salton sea and toxics from Mexico / Arthur Swajian 31. Lower Gila river contaminant study / William C. Kepner 32. An overview of irrigation water quality in the middle Rio Grande valley of New Mexico / Bryan H. Pridgeon 33. Impact of Arizona environmental quality act on agriculture water supply / Henry Evans 34. Pesticides contamination of water supplies: An environmental perspective / David S. Baron 35. The Arizona environmental quality act - Implications for agriculture / Charles Anders 36. Effect of irrigation on groundwater quality in the southwest / Kenneth D. Schmidt 37. Human health effects of toxic substances / James G. Dahigren 38. Best management practices for control of nitrogen pollution by farm and feedlot / N. R. Gardner and J. E. Watson 39. Industry's perspective on agricultural chemicals in water supply and drainage / K. C. Bishop, III.

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