Robinson

This appeal arises from the denial of a petition for writ of mandate (writ petition) brought under the California Environmental Quality Act (CEQA). (Pub. Resources Code, § 21000 et seq.) The writ petition sought to overturn the decision of respondent City and County of San Francisco (the City) to permit real parties in interest and respondents T-Mobile West Corporation, T-Mobile USA, Inc., T-Mobile Resources Corporation, and Omnipoint Communications, Inc. (collectively T-Mobile), to place sets of wireless telecommunications equipment on existing utility poles, including a pole located near appellants’ homes. 1 The trial court denied the requested relief. We affirm.

FACTS AND PROCEDURAL BACKGROUND

On April 6, 2009, T-Mobile filed an application with the City’s planning department requesting CEQA review of a series of about 40 proposed *954 wireless telecommunications equipment installations (the T-Mobile project). 2 The installations were to be fastened to existing utility poles at locations “distributed throughout the city and . . . not concentrated in one particular area.”

On August 7, 2009, T-Mobile applied to the City’s department of public works for a permit to…