A History of Pride

In August of 1910 the United Association granted a charter to form a local union for work in the San Gabriel Valley of Southern California.  Local 398 began dispatching from what was then the dusty farm town of Pomona (population 10,000) half a day’s journey from downtown Los Angeles on the Southern Pacific rail line.  More than a century later Local 398 is still dispatching plumbers and fitters from the Local’s offices in Rancho Cucamonga.

The Local’s jurisdiction stretches from the peaks of the San Gabriel Mountains to the lowlands of the basin, including more than twenty major towns. UA Local 398 is thee Plumbers and Fitters Union for the following cities: Alhambra, Altadena, Arcadia, Azusa, Baldwin Park, Bassett, Bradbury, Charter Oak, Chino, Chino Hills, City of Industry, Claremont, Corona, Covina, Diamond Bar, Duarte, East Los Angeles, Eastvale, El Monte, Glendora, Hacienda Heights, Irwindale, La Cañada Flintridge, La Puente, La Habra Heights, La Verne, Mira Loma, Monrovia, Montclair, Monterey Park, Montebello, Mt. Baldy, Norco, Ontario, Pasadena, Pomona, Rancho Cucamonga, Rosemead, Rowland Heights, San Dimas, San Gabriel, San Marino, Sierra Madre, South Pasadena, Temple City, Upland, Valinda, Walnut, and West Covina

Moving into its second century of service, the goal of this Local remains the same: Help our contractors grow, train men and women for well paying honorable jobs.