[1] Hyperion was a stop on the Pacific Electric Redondo Beach via Playa del Rey Line that lay at an elevation of 33 feet (10 m).

[1] According to a history of Santa Monica, "Mayor [John C.] Steele co-operated most effectively with his fellow-commissioners in acquiring water-bearing lands in the Charnock Road section, also in the planning of a sewage disposal system, with Hyperion Pier, five miles south of the city, as its outfall point.

[3] The pier may have been the site of the outfall sewer into the ocean, as the wharf seemingly carried a redwood pipe 2,000 ft (610 m) "out to a submerged end.

"[4] According to an interview with one sanitation engineer, it was a "five-foot wooden pipe made just like a barrel, only straight strips.

The reason I know this, a guy came down from Oregon representing the wood industry, and he wanted a piece of that pipe.