Five citizen groups and school classes in suburban Virginia are among 14 area groups that received small grants through the Metropolitan Washington Council of Governments to get more people involved in cleaning up the region's rivers and streams.

The groups received average grants of $300 from the Environmental Protection Agency to help focus attention on COG's efforts to improve water quality here. Winners were selected by a citizen participation subcommittee of COG's Water Resources Citizen Advisory Committee.

A Boy Scout Explorer Post in Springfield will survey the Lake Accotink watershed to determine sources of pollution and silation. The three-month project will be conducted with support from the Fairfax County Park Authority and the Northern Virginia Soil Conservation Service.

The Ecology Club of T.C. Williams High School in Alexandria will hold a water resources slogan contest designed to increase awareness of key water issues. The winning slogan will be produced on T-shirts, which will be sold. The contest will be open to students at Alexandria's three high schools and three middle schools.

North Ridge Citizens' Association in Alexandria, which represents nearly 3,000 families, will use the grant for a pamphlet containing water conservation tips for homeowners, to be mailed to all its members.

Northern Virginia Environment Protection Club received a grant for a series of hikes along the Potomac River, designed for the beginning hiker with family participation encouraged. The emphasis will be on wildlife and vegetation observations and water pollution tests for levels of chemical pollutants and sewage contamination.

The Pentagon City Coordinating Committee will use its grant for a one-day workshop to be held this month in Arlington County to educate the community on the causes of water pollution and how it can be treated, what COG is doing and steps citizens can take to conserve and improve the quality of their water.