The level of the Great Salt Lake fell .15 foot - 1.8 inches - from the level on April 15 and was at 4,206.65 feet above sea level Monday, the U.S. Geological Survey said.

Darrell Carlson, hydrologist for Water Resources Division of the survey, which operates the official gauge at the Saltair Beach Boat Harbor in cooperation with the Utah Division of Water Rights, attributed the drop in the lake level to a lack of precipitation within the drainage basin and the operation of the West Pond pumps."The level on this date last year was 4,209.45 feet above sea level, which is 2.80 above today's level," Carlson said.

The water temperature Monday at the gauge was 13.0 degrees Celsius (55.4 degrees Fahrenheit). The salinity was 10.1 percent or about three times the salinity of sea water, which is 3.5 percent.

William J. Alder, meteorologist in charge of the Salt Lake office, National Weather Service, said the drop in the lake level is not surprising because of warm, dry weather.

It appears the lake has peaked for the year. The pumps are still operating but will be turned off June 30.