[1] The California Office of Environmental Health Hazard Assessment has issued a safe eating advisory for any fish caught in Stevens Creek Reservoir due to elevated levels of mercury.

Stevens Creek and the reservoir are named after Captain Elijah Stephens, who led the first wagon train across the Sierra Nevada in 1844 and settled in Cupertino.

[9] The 1,063-acre (430 ha) park surrounds the reservoir, with the Picchetti Ranch Open Space Preserve adjacent to its east on the Montebello Ridge (also known as Black Mountain).

Bluegill, koi, common carp, largemouth bass, crappie, white catfish, native landlocked steelhead, and other species of fish live in the reservoir.

[3][12] The reservoir was historically stocked with farmed rainbow trout for recreational purposes, but this practice was discontinued after elevated levels of methylmercury were assessed.