Kings Bay is Crystal River's headwater, or point of origin, and is fed by a number of springs that produce a constant temperature of 72 °F all year round.
[2] Recent studies have shown the nitrate level of Crystal River and Kings Bay has been on the rise.
Historical water quality data from the early 1900s show that nitrate concentrations were 20 times lower than they are now.
The main source of the nitrogen and phosphorus is ground water discharge from area springs and the overuse of inorganic fertilizers.
It can be toxic to manatees, can cause many health issues in humans, and harmful to Crystal Rivers tourism.