DECATUR-- The latest study on Lake Decatur has found that it is still lower than normal, but the rains throughout the past month have helped the lake sustain some levels.  The numbers show that the lake stands at 610.79 feet, which is just over 1.5 feet below normal winter depths.  City water manager Keith Alexander says that the lake continues to drop on a daily basis, however it is dropping at a slower pace than it was over the summer.  If the lake reaches 610.5 feet the city will ask some of the larger water users to cut back their usage.  At 613 feet, water restrictions will be lifted, although Alexander says it is highly unlikely that will happen in the near future.  On a high note, 3-4 inches of rain was dropped up north over the weekend and Lake Decatur will begin to see the affects of that within the next week.