Shadow Cliffs Regional Recreation Area

Shadow Cliffs Regional Recreation Area is a regional park on the border of Pleasanton, California, and Livermore, California that is part of the East Bay Regional Parks (EBRP) system on Stanley Blvd. The lake was once a gravel pit, but then included a sandy beach with swimming, water slides and it supports fishing and recreational boating. Now the water slides have been taken down and is now planned to be replaced by an Interpretive Center. The park is also a popular picnic ground.

E. coli

Lake water at Shadow Cliffs Beach is tested for bacterial levels weekly during April through October and twice a month from November to March.^[1] In July 2014 EBRP closed the lake to swimmers due to extremely high levels of E. coli bacteria. Testing of water samples demonstrated E. coli at 6,100 colonies per 100 milliliters at the lake's south beach and 1,000 colonies per 100 milliliters at the north beach. California's state standard for daily maximum exposure is 235 colonies per 100 milliliters. Hal MacLean, the district water management supervisor, suggested that a combination of drought conditions, low water levels and accumulated animal feces - probably from geese - had caused the high bacterial content. EBRP planned to treat the lake with an oxidizing agent and "direct geese away from the swim area" in an attempt to lower the levels.^[2]

References

↑ "Shadow Cliffs Regional Recreation Area". East Bay Regional Park District . Retrieved July 30, 2014.
↑ Thomas, Jeremy (July 25, 2014). "Harmful Bacteria Prompts Closures for Swimmers at Popular East Bay Lakes". Oakland Tribune. Oakland. Retrieved July 29, 2014 – via HighBeam Research.

External links

Ebparks.org: official Shadow Cliffs Regional Recreation Area website

East Bay Regional Parks

Parks	Alvarado Park Anthony Chabot Briones Castle Rock Contra Loma Coyote Hills Crockett Hills Del Valle Diablo Foothills Dry Creek Pioneer Garin Lake Chabot Middle Harbor Shoreline Pleasanton Ridge Redwood Ridgelands Sobrante Ridge Temescal Tilden Wildcat Canyon

Shorelines	Antioch/Oakley Big Break Brooks Island Carquinez Strait Hayward Martin Luther King Jr. Martinez Miller/Knox Oyster Bay Point Isabel Point Pinole

Preserves/Open Spaces	Bishop Ranch Black Diamond Mines Brushy Peak Claremont Canyon Huckleberry Leona Canyon Mission Peak Morgan Territory Sibley Round Valley Sobrante Ridge Sycamore Valley Vasco Caves Waterbird

Wilderness Areas	Las Trampas Ohlone Sunol

Recreation Areas	Cull Canyon Don Castro Kennedy Grove Quarry Lakes Roberts Shadow Cliffs

Trails	Alameda Creek Iron Horse

Other	Ardenwood Historic Farm Browns Island Crown Memorial State Beach Eastshore State Park Hoffman Marsh Point Molate Beach Park Breuner Marsh

Livermore, California

Landmarks	Bank of Italy Building Hagemann Ranch Historic District D. J. Murphy House Ravenswood Cresta Blanca Winery Wente Vineyards Concannon Vineyard

Economy	Livermore Valley AVA Lawrence Livermore National Laboratory Sandia National Laboratories National Ignition Facility The Wine Group Activant

Education	Las Positas College Livermore Valley Joint Unified School District Hertz Foundation

Transportation	Interstate 580 (California) Livermore Municipal Airport WHEELS bus system Altamont Corridor Express

Other	Robert Livermore Bill Owens Mocho Subbasin Livermore Rodeo Centennial Light Brushy Peak Regional Preserve Valley Concert Chorale

Pleasanton, California

Schools	Pleasanton Unified School District Amador Valley High School Foothill High School Horizon High School Village High School

Landmarks	Alameda County Fairgrounds Pleasanton Fairgrounds Racetrack Augustin Bernal Park Pleasanton Ridge Regional Park Shadow Cliffs Regional Recreation Area Dublin / Pleasanton BART station West Dublin / Pleasanton BART station

This list is incomplete.

Coordinates: 37°40′10″N 121°50′22″W / 37.66944°N 121.83944°W / 37.66944; -121.83944

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