Montgomery County residents who have had discolored water flowing from their taps may get relief over the next six months.

The Washington Suburban Sanitary Committee will begin a half-year-long flushing program on Monday to clean out what is believed to be the source of the problem - iron and manganese deposits that have settled in pipelines.

"The WSSC and many of its customers have been concerned about the occurrence of discoloration in the county," Richard G. Hocevar, director of maintenance and operations said. "The flushing program is designed to reduce the possibility of widespread future water discoloration, which severely impacts on the esthetic quality and usability of (our) product."

Hocevar said the project, which is expected to cost from $163,000 to $193,000, will cause temporary discoloration of water for customers in neighborhoods where the hydrants are opened for the flushing operation. The commission said customers in affected areas should store clear water in advance of flushing and postpone laundering during that period.

Flushing this week. Monday through Friday, will be done in the following neighborhoods: Beall Mountain Potomac, Saddle Ridge, Potomac View Estates, River Oaks Farm, Potomac Hills, Potomac Village, Camotop, Piney Glen Farms, Ferris Subdivision, Bedfordshire, Pine Knolls, Hollinridge, Glen Park, Glen Knolls, Glen Hills. Glen Burton, Lakewood, the Glen and North Glen Hills.

Flushing next week will be in: Lakewood Estates, Potomac Falls Estates, Fawsett Farms, Williamsburg Gardens, Concort, River Road Estates, Williamsburg Estates. Potomac Ranch, River Falls, Cropley Falls, Bradley Farms, Bradley Boulevard Estates. Congressional Manor, Carderock Springs and Cabin John Park.

Other subdivisions will be done later.