Your WaterFlood and Stream ManagementWatershed and Environment

Zone 7 owns many flood control channels and creeks in the Cities of Livermore, Pleasanton and Dublin, and in unincorporated areas of Eastern Alameda County. If you see a spill or dumping in any waterway, follow the directions below to report it:

  1. If a spill is currently happening, call 911.
  2. If the situation is not urgent, call:
  • Zone 7 Administrative offices at (925) 454-5000 during business hours, Monday-Friday, 8 a.m. to 5 p.m.
  • Water Treatment Plant Operator at (925) 447-6704, ext. 1, during non-business hours.