The following was among actions taken by the Alexandria City Council at it Oct. 9 meeting. For further information, call 838-4300.

POTOMAC YARD -- The council warned officials with the Virginia State Retirement System that a plan to have the fund become the majority owner of valuable land south of National Airport might not be as lucrative a proposition as it seems.

On a 5-to-2 vote, the council approved a resolution to inform state pension officials that the amount of commercial development that will be permitted on the 320 acres in Alexandria and Arlington known as Potomac Yard probably will be substantially less than what is permitted now, making the land less valuable. The land is owned by RF & P, formerly the Richmond, Fredericksburg and Potomac Railroad. Officials of the pension fund are considering buying a majority ownership in RF & P, which is planning a 17-million-square-foot development at Potomac Yard.

Last week, three of the council's seven members, in response to strong public opposition to the large increase in traffic from the project, unveiled a plan to limit development in the yard to less that a third of what developers have proposed. A fourth council member has endorsed that proposal, virtually assuring its passage.

Council member Lionel R. Hope (D) voted against the resolution, saying, "I get a little nervous when we use our power to persuade somebody not to buy" something. "They have a willing seller and willing buyer. I just don't like the idea of a resolution in this regard." Council member William C. Cleveland (R) also voted against the resolution.