Which of the following would qualify as a watercourse?

Anthony, Barbara, Cedric and Debra all own property that borders a small lake. One day, Cedric installs a pump where his property meets the lake and starts pumping the water from the lake to water his crops. Because of this, the water level of the lake goes down. Anthony, Barbara and Debra complain. Cedric claims that he may continue to use his pump. If the jurisdiction follows the riparian doctrine, who is correct?

Old MacDonald has a farm in Arizona. Because of the lack of rain, during the spring, he needs 2,000 gallons of water per day to water his crops. Thus, Old MacDonald builds a well with a super strong pump and pumps 1,000 gallons of water per day from the water table to water his crops. Under the majority rule, may Old MacDonald do this?

Chandler owns a farm on the banks of the St. Lawrence River in Arkansas. Very often, in the spring time, the rains cause the St. Lawrence to overflow and flood Chandler's crops. So, Chandler installs a complex drainage and gutter system with pipes and dikes etc. that is designed so that all the excess water from the St. Lawrence in his area should flood his neighbor, Spruill's property, instead of his own. May Chandler do this?