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Arroyo Seco (Alameda County)

Alameda County, California geography stubsCalifornia river stubsEl Camino ViejoRivers of Alameda County, CaliforniaTributaries of Alameda Creek
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Arroyo Seco is an 11.7-mile-long (18.8 km) watercourse in Alameda County, California, that traverses through the city of Livermore, emptying into Arroyo Las Positas. Arroyo Seco means "dry stream" in Spanish. Arroyo Seco lies above the Arroyo Seco watershed, which includes the eastern part of the city of Livermore and also the Sandia National Laboratory. The Mocho Subbasin is the largest of the subbasins in the Livermore Valley watershed. This subbasin is bounded to the west by the Livermore Fault Zone and to the east by the Tesla Fault. Some groundwater flow occurs across these fault boundaries, but flows are discontinuous below a depth of 50 feet (15 m) across the Tesla Fault and south of the Arroyo Mocho channel across the Livermore Fault. A number of threatened and endangered species reside in this watershed.

Excerpt from the Wikipedia article Arroyo Seco (Alameda County) (License: CC BY-SA 3.0, Authors, Images).

Arroyo Seco (Alameda County)
Las Colinas Road, Livermore

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Geographical coordinates (GPS)

Latitude Longitude
N 37.705555555556 ° E -121.75638888889 °
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Las Colinas Road

Las Colinas Road
94551 Livermore
California, United States
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East Bay Athletic League

The East Bay Athletic League (EBAL) is a high school sports league in the North Coast Section of the California Interscholastic Federation. The league was created in 1964; previously teams competed in the "East Bay Division" (EBD) of the Diablo Valley Athletic League (DVAL). Its member institutions are located in the eastern region of the San Francisco Bay Area, in the cities of Concord, Danville, San Ramon, Dublin, Pleasanton, and Livermore. In the fall of 2016 the E.B.A.L. expanded to a 10 team league (De La Salle competing in boys sports & Carondelet in girls sports) by adding Dublin High School, and Dougherty Valley High School. De La Salle stopped competing in EBAL Football in 2012-13 and competed as an Independent school in football. In 2018, De La Salle was re-admitted back into the EBAL Football League and now competes again for the league title. Also in 2018, the EBAL split its Football League into two "Divisions"; the Mountain Division (consisting of California, De La Salle, Foothill, San Ramon and Monte Vista) and the "Valley Division" (consisting of Amador Valley, Dougherty Valley, Dublin, Granada and Livermore). In 2020, Foothill moved to the Valley Division and in 2021, Amador Valley moved to the Mountain Division. In the fall of 2019 the E.B.A.L. expanded to a 11 team league by adding Clayton Valley High School to the league, competing in the Mountain Division in football. The league has twelve affiliated schools. Amador Valley High School, Pleasanton (1964-Current) California High School, San Ramon (1976-Current) Carondelet High School - (All Girls) Concord (2008-Current) Clayton Valley High School, Concord (2019-Current) De La Salle High School - (All Boys) Concord (2008-Current) Dougherty Valley High School, San Ramon (2007-2008, 2016-Current) Dublin High School, Dublin (1969-1988, 2016-Current) Foothill High School, Pleasanton (1976-Current) Granada High School, Livermore (1965-Current) Livermore High School, Livermore (1964-Current) Monte Vista High School, Danville (1972-1992, 1996-Current) San Ramon Valley High School, Danville (1972-Current)Former members Salesian High School (1964-1966) Berkeley High School (1996-2000) (to be verified) Liberty High School (Brentwood) (1964-1974) St. Vincent High School (Vallejo) (1964-1968) Albany High School (1964-1972) John Swett High School (1964-1972) San Leandro High School (1989-1991)It also fields nineteen sports. Badminton Baseball Basketball Cross Country Football Boys' Golf Girls' Golf Lacrosse Soccer Softball Stunt Swimming and Diving Boys' Tennis Girls' Tennis Track and Field Boys' Volleyball Girls' Volleyball Water Polo Wrestling