EAST COUNTY -- Motorists on Marsh Creek Road might encounter delays starting this weekend as work crews install pipelines.

Contra Costa Water District will be putting water pipelines along a stretch of the road between the mobile home park and a spot near Royal Oaks Drive to help residents of Clayton Regency Mobile Home Park, whose treated water supply was determined to be a public health emergency by the county public health department.

The water district stepped in at the county's behest.

Most of the work during the approximately three-month project will take place outside peak commute hours to minimize disruptions, typically from 7 p.m. to 5 a.m. Sunday through Thursday.

On some occasions, however, crews might be working 9 a.m. to 2 p.m.

Streets will be swept daily, and measures will be taken to control the dust and noise near homes on Marsh Creek Road.

Drivers will have to slow to 25 mph to make the area safer for workers and might have to wait up to 30 minutes because there will be single-lane closures.

Area residents will be notified ahead of time if the work requires restricting access to their driveway.

For more information, contact Oliver Symonds at osymonds@ccwater.com or

925-688-8010. If there are after-hours emergencies related to this project, call 925-688-8374.

-- Rowena Coetsee