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7. The majority of the excess water moving downward through 

 the glacial till and accumulating on the impermeable shale comes during 

 the spring months of the year--March, April, May, and June. 



b. On fallow areas, a water-table rise of one to five feet 

 can be expected during years with average or above average spring 

 precipitation. These water table highs gradually decline during the 

 rest of the year, but normally do not reach the previous year's low 

 indicating a continual build-up of excess water over the years. As a 

 result, each succeeding wet cycle makes the saline-seep problem worse. 



9. The size of each wet-saline area (discharge area) is related 

 directly to the size of the adjacent upland recharge area. Every effort 

 should be made to delineate the major recharge areas to make sure that 

 the cropping system is intensified in these areas. Frequently, all the 

 attention is given to the seep (discharge) area and the upland (recharge) 

 area is left fallow. 



10. In many areas the "perched" water table has built up to a 

 point where coulees which were formerly dry most of the year are now 

 starting to flow year-round. At the present time most of the saline 

 water is evaporated before reaching the perennial streams leaving the 

 salts behind to be flushed away during spring runoff. Unless the growth 

 and development of saline seeps are stopped soon many coulees will 

 start to flow appreciable quantities of highly saline water to all perennial 



