http://m.pe.com/articles/lake-821818-water-feet.htmlBy MICHAEL J. WILLIAMS, STAFF WRITER
For the first time in a half-dozen years, water flowed over Canyon Lake’s dam in the last few days, rushing downstream into Lake Elsinore.
“Watching the water come over the dam on Christmas Day and flow into the lake was quite the Christmas miracle for us,” Mayor Bob Magee said.
Observers hope the influx -- coupled with more potential storms such as one forecast for later this week -- will rescue Southern California’s largest natural freshwater body from a severe decline brought on by the region’s prolonged drought.
Before recent storms, the lake level had dropped as low as it had been since the early 1990s, resulting in a shrinking shoreline, shallow depths and a bloom of toxic blue-green algae.
The lake experienced a die-off of shad minnows last summer, but it was relatively minor compared to some of the massive die-offs in past years.
“It becomes a vicious cycle,” said Elsinore Valley Municipal Water District board President Phil Williams of the deteriorated conditions. “We’ve done remarkably well in terms of fish kills, considering it’s one of the worst droughts on record.”
The district and the city manage the lake with assistance from the Lake Elsinore & San Jacinto Watersheds Authority. The coalition strives to improve water quality along the river, which flows into Canyon Lake, a man-made drinking water reservoir.
Unless the dam overflows into the riverbed, Lake Elsinore lacks sufficient rain and runoff to counter evaporation. While Elsinore Valley releases reclaimed water into the lake daily, it still is not enough to offset the evaporation rate of 4.5 feet per year.
Lake Elsinore’s level has steadily dissipated since spring 2011, when a turbulent winter sent water surging over the dam around the beginning of that year. Between Dec. 20, 2010, and Jan. 3, 2011, the lake rose about 6 feet to nearly 1,248 feet above sea level -- the biggest increase since 2005.
Over the last six years, the level had sunk to about 1,232 feet for a maximum water depth of less than 25 feet -- the lowest since the early 1990s. Studies indicate the lake’s health is best at a minimum 1,240 feet elevation.
The level, however, is now rising from the dam overflow and recent storms, which dropped several inches of rain in the last week. Measurements taken at the end of the city’s La Laguna Boat Launch show the depth there had increased about a foot to 56 inches as of Tuesday morning.
“We’re hoping to get enough rain through the winter to bring the lake up closer to its optimal level of 1,240 feet,” said Senior Management Analyst Nicole Dailey, who oversees the lake for the city.
Even as the water level dropped, boats have been able to continue embarking from La Laguna, which opened in 2012, Magee noted.
“The city and the water district in our partnership have done everything that we could to keep our lake full and healthy,” Magee said. “The third leg of the stool had to be Mother Nature and Mother Nature’s finally joined the party, just like she did in 2005.”
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