All piping in the territory east of the Los Angeles County Line in San Bernardino and Riverside Counties to Etiwanda Avenue. The Eastern border is a North/South line based in the center of Etiwanda Avenue in Rancho Cucamonga, which emanates on the South at the Orange County Border and the North at a perpendicular line, emanating easterly from Mt. Baldy
Within Los Angeles County, all piping except industrial and refrigeration service, is as follows: North from Mt. Baldy along the Los Angeles County Line to a point due east of Crystal Lake; West to Crystal Lake, due North to Angeles Crest Highway then South on Foothill boulevard,
West on Foothill Boulevard to Chevy Chase Boulevard, South on Chevy Chase Boulevard to the Glendale City Limits South. The Pasadena City Limits South to South Pasadena City Limits, South to the Alhambra City Limits, to the 710 Freeway, South to the 60 Freeway, east to the intersection of the 60 and 605 Freeways, then Southeast along a line drawn to the Northwest corner of the Los Angeles/Orange County Line, East along the Orange County Line to a line due South of Etiwanda Avenue.
Work in regards to Sewage Treatment / Water Reclamation / Water Filtration / Water Treatment Plants / or any plants designed or built for processing; handling; converting; filtrating; treating; of water; sewage; sludge; or drainage refer to the work assignments by the General Office of the United Association as agreed upon within Los Angeles County between Locals 250 and 398.