NEWS RELEASE June 9, 2008 LADWP BEGINS COVERING THE IVANHOE RESERVOIR WITH SHADE BALLS INNOVATIVE MEASURE TO ENSURE WATER QUALITY LOS ANGELES (June 9, 2008) — The Los Angeles Department of Water and Power (LADWP) began covering the Ivanhoe Reservoir this morning with floating black plastic balls known as Shade Balls. At a brief ceremony, […]