 The letter noted that the district's "actions to date do not demonstrate an appropriate sense of urgency" regarding the risk of catastrophic failure in the case of earthquake.On February 21, 2017 during the 2017 California floods, the reservoir reached as high as 104% of capacity, creating a large flow over the spillway into Coyote Creek, which overflowed and flooded the Rock Springs/Summerside, Olinder, Naglee Park, Roosevelt, Wooster-Tripp and Berryessa neighborhoods of San Jose along US Highway 101 between the reservoir and the south San Francisco Bay.The high earthen dam measures long by wide and sits along the Coyote Creek Fault on Coyote Road, east of Morgan Hill.