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The dominant geological feature in the Santiago Creek watershed are the Santa Ana Mountains. The northern portion of the mountains, which Santiago Creek drains, is composed of rocks from the pre-Triassic to the Quaternary (251–2.6 MYA). [8] These rocks consist primarily of slate, sandstone, conglomerate, limestone, and other sedimentary rocks ...
The dam and reservoir receive water from a catchment area totaling 64 square miles (170 km 2), controlling water from about two-thirds of the Santiago Creek watershed. Santiago Dam is designed to contain up to a 50-year flood and withstand a 500-year flood of over 30,000 cubic feet per second (850 m 3 /s). Aside from Santiago Creek, Limestone ...
Villa Park Dam is an embankment dam on Santiago Creek in Orange County, California in the United States. [2] Along with the upstream Santiago Dam, the dam serves primarily for flood control for the cities of Villa Park, Orange, Tustin and Santa Ana and also regulates the inflow of Santiago Creek into the Santa Ana River.
Map showing the main Orange County watersheds and watercourses. This is a list of rivers of Orange County, California, part of the Greater Los Angeles Area in Southern California.The Santa Ana River and San Gabriel River are the largest in Orange County; their extensive watersheds extend into neighboring Los Angeles, Riverside and San Bernardino Counties.
The Federal Emergency Management Agency rated Los Angeles County as “the most susceptible county in the United States to natural disasters,” according to a recent county progress report on an ...
Santiago Creek: Orange: Serrano Water District and Irvine Ranch Water District: 1933: ... California Department of Water Resources, Division of Flood Management;
Maple Grove's Fish Lake, a popular outdoors refuge for fishing, swimming, water skiing and wakeboarding, will be removed from the state's impaired waters list following years of work to reduce its ...
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