Moulton Niguel Explains: What's under a sewer manhole cover?

Have you ever wondered what's under a sewer manhole cover?
Mark Herron, Moulton Niguel Water District's Supervisor of Collections, takes you under the manhole cover to show one of the steps Moulton Niguel takes to ensure safety.
Moulton Niguel Water District takes redundant steps to prevent spills. In this video, Mark explains how a flow sensor acts as a third redundancy.
Every five minutes, a flow sensor takes a reading. If it reaches a pre-determined level, the sensor automatically sends a text message to Moulton Niguel staff.