Tri-Valley

Pleasanton is a city in Alameda County, California, United States. Located in the Amador Valley, it is a suburb in the East Bay region of the San Francisco Bay Area. The population was 79,871 at the 2020 census. In 2005 and 2007, Pleasanton was ranked the wealthiest middle-sized city in the United States by the Census Bureau. Pleasanton is home to the headquarters of Safeway, Workday, Ellie Mae, Roche Molecular Diagnostics, Blackhawk Network Holdings, and Veeva Systems. Other major employers include Kaiser Permanente, Oracle and Macy's. Although Oakland is the Alameda County seat, a few county offices are located in Pleasanton. The Alameda County Fairgrounds are located in Pleasanton, where the county fair is held during the last week of June and the first week of July. Pleasanton Ridge Regional Park is located on the west side of town.

Ozark High School is a high school in Ozark, Missouri. Ozark High School is an International Baccalaureate World School.

Amador Valley High School is a comprehensive public high school in Pleasanton, California. It is one of three high schools in the Pleasanton Unified School District, along with Foothill High School and Village High School. Founded as Amador Valley Joint Union High School (AVJUHS), it graduated its first class in 1923. Major construction and renovations were undertaken after district voters approved bonds in 1922, 1965, 1997, and 2016. The school is a four-time California Distinguished School and a three-time National Blue Ribbon School. In national competitions such as We the People: The Citizen and the Constitution, the Amador Valley team has won the 1995 and 2022 national titles. The Amador Valley Wind Ensembles have performed at national venues and conferences, including Carnegie Hall and the Midwest Clinic. Several Amador Valley athletic teams have won multiple California Interscholastic Federation North Coast Section Division I titles since 2010, including the softball team which MaxPreps named 2014 mythical national champion following a perfect season.

The Pleasanton Unified School District (PUSD) is a public primary and secondary education school district located in Pleasanton, California, United States, a suburban town east of San Francisco. It consists of nine elementary schools, three middle schools, two comprehensive high schools, and one alternative high school. It includes the majority of Pleasanton and sections of Hayward and Sunol.

Village High School (commonly called Village) is a public continuation high school located in Pleasanton, California, United States, a community in the San Francisco East Bay area. Village is a part of the Pleasanton Unified School District, which also includes Amador Valley High School and Foothill High School. The high school was formed for students from Amador Valley and Foothill with low grades, multiple absences, or credit deficiencies.

The Pleasanton Public Library serves the city of Pleasanton in Alameda County, California. The library is located near downtown Pleasanton at 400 Old Bernal Avenue. The Pleasanton Women's Improvement Club was formed in 1908 to improve the community of Pleasanton, an agricultural town located in the "Tri-Valley" area east of San Francisco. Their first project was to establish a reading room. With $1,100 they raised at an "Old Maid's Convention" and other fundraisers, they purchased a site to house the Reading Room. In 1909, it was opened to the public. Books were donated and a librarian was hired for $10 per month. Honored guests for the formal opening were Mrs. Phoebe Apperson Hearst and her guest, the Consul of Persia. After Pleasanton's first city hall (now the Museum on Main Street) was built in 1915, the city leased a portion of it to the club for $1 per year to house the library and reading room.The library has grown to keep pace with Pleasanton as it changed from an agricultural town to a suburban residential community and one of the modern business centers of the East Bay area. In 1964, the library became a full member of the Alameda County Library system. In 1973, the need for growth led the library to a new 6,900-square-foot (640 m2) facility on Black Avenue, with approximately 35,000 books. In 1987, the city recognized the need for an even larger library and began construction on the current 30,000-square-foot (2,800 m2) facility, which opened in 1988. In 1999, in response to significant funding losses to the Alameda County Library system generated by California's "Educational Revenue Augmentation Fund", the City of Pleasanton withdrew from the system to become a municipal library. Since that time, use of the library has more than doubled, with more than 1.1 million items checked out in calendar year 2005.

Pleasanton station is a train station in Pleasanton, California served by Altamont Corridor Express (ACE) trains. It is located northwest of downtown Pleasanton adjacent to the Alameda County Fairgrounds. The station has a single side platform on the single track of the Union Pacific Railroad Oakland Subdivision.

Rancho Santa Rita was a 8,894-acre (35.99 km2) Mexican land grant in the Amador Valley and western Livermore Valley, which is in present day Alameda County, California. It was given in 1839 by Governor Juan Alvarado to Jose Dolores Pacheco.The rancho included present day Pleasanton, Asco, and Dougherty.

Tri-Valley University (TVU) was an unaccredited private university in Pleasanton, California. It was shut down after being raided by Immigration and Customs Enforcement due to possible visa fraud.

The Alameda County Fairgrounds is a 270-acre (110 ha) facility located in Pleasanton, California. It is home to the annual Alameda County Fair, held since 1912, as well as numerous trade shows and community events. Located on its grounds, the Pleasanton Fairgrounds Racetrack was built in 1858, making it the oldest one-mile (1.6 km) horse racing track in the United States. There is a 3,000 seat amphitheater, as well as a 9-hole golf course located within the track's infield. The Alameda County Central Railroad Society has maintained a model train exhibit at the fairgrounds since 1959, which has grown to two 15-by-100-foot (4.6 by 30.5 m) layouts in O scale and HO scale.Building J, also known as the Amador Pavilion, is a multi-purpose arena and livestock event facility at the fairgrounds. It was briefly home to the Tri-Valley Ranchers of the National Indoor Football League. Fair cancellations happened in 1917–1918, 1942–1944 and 2020.

The Livermore-Pleasanton Fire Department (LPFD) provides fire suppression and emergency medical services to the neighboring cities of Livermore and Pleasanton, California. The organization uses a joint powers authority (JPA) model with essential support services provided by both cities. This partnership promotes more efficient administration and effective delivery of services.

Amador Valley is a valley in eastern Alameda County, California and is the location of the cities of Dublin and Pleasanton. Part of Tri-Valley, the valley is bounded by the foothills of the Diablo Range on the north and south, Pleasanton Ridge to the west, and Livermore Valley to the east. Watercourses draining into the Amador Valley include South San Ramon Creek, Tassajara Creek, Arroyo Mocho, Arroyo Valle, and Arroyo Las Positas, as well as runoff from Pleasanton Ridge. These waters drain south through Arroyo de la Laguna to Alameda Creek, ultimately ending up in San Francisco Bay.