[2] In 1769 the Portolá expedition passed through this geographic area and noted the quantity of water sources, from springs to streams and marshes.

[6] At the beginning of the 1920s, the Los Angeles leadership began the process of filling-in wetlands and burying natural sources of water – including hot springs – as an effort to promote real estate sales.

[7] It was sold for ten cents per gallon, and was claimed to have healing properties that could resolve "acidity and kindred troubles.

"[6] In 1984, a thermal spa was established at the site[7] by Yang Cha Kim, a Korean doctor of Oriental medicine and her husband.

[2] In 2023, KCRW radio reported that plans are in the works cap the artesian thermal spring source and to demolish the spa facility to build a housing development.