The sewer plans below are available at this webpage and assistance may be obtained from the contacts below. View the
Sewer Operations Maps here
to get the sheet that covers your area. Open the overlay sheet for that page and locate the sewer number. Sewers are listed by the number given PC, CI, etc. If you do not find the sewer plan you are looking for, you may need to contact the city that the sewer and property is located within.
County contract cities are Artesia, Carson, Commerce, La Mirada, Lakewood, Lomita, and Temple City.