Oxnard Water Distribution Water Mainline and Dead End Flushing

Typically water distribution systems are designed to maintain a continuous loop. The continuous loop system allows water to flow freely throughout the system as water demand occurs. This type of system is the ideal goal a designer attempts to attain. But as we all know this can be a difficult task and in most cases it becomes impossible to maintain the system continuous. Cul-de-sacs however, do not allow for a continuous flow, therefore typically fire hydrants and water lines are tapped off at the end of that section of pipe. In these cases, it becomes necessary to flush the water out through either of these appurtenances in order to remove accumulated sediments. This process is referred to as "Dead End Flushing." This process also helps to prevent possible nitrification problems caused by chemicals or organic materials that may occur. Currently we flush dead end lines every year. This also helps to keep smell, taste and odor problems from occurring in those areas.

The concept of Main line flushing is similar to the dead end flushing and is performed to scour the pipes so that any build-up of sediment or solids is removed. If this is not done, sediment is collected in the water mains and in most cases when there is a large and sudden demand in water, such a hit fire hydrant, the sediment is stirred and the appearance of our water is drastically changed. This effect gives the water a reddish appearance. If you should experience this, we recommend that you refrain from any water use until the sediment has settled. Main line flushing is scheduled at various times throughout the year.