A federal grand jury in Alexandria has issued at least three subpoenas for Fairfax County records concerning property that was purchased as right of way for the construction of the Fairfax County Parkway, according to county officials.

The subpoenas, received about three weeks ago, seek records and other information about meetings, property assessments and rezonings involving land in the area of Hooes Road, just south of Springfield and west of Interstate 95, sources said.

The exact purpose of the investigation could not be determined yesterday.

One subpoena, sent to the county Office of Transportation, sought information about any meetings transportation staff members had with two individuals concerning rezonings of five parcels along Hooes Road, sources said.

They said those parcels now belong to the state, which purchased them for the parkway's right of way.

Formerly known as the Springfield Bypass, the parkway is a 35-mile, cross-county expressway that is considered Fairfax's top transportation priority. More than a decade in the making, the road will stretch between Route 7 in the northwest and Route 1 in the southeastern part of the county when completed.

As the parkway approaches I-95 and Backlick Road from the west, plans call for it to split into two spurs, one heading north toward the Springfield Mall, the other going south to Route 1. It is land for the northern spur, which roughly parallels Hooes Road, that was the subject of the subpoenas, sources said.

Tax and land records indicate that some unimproved parcels along Hooes Road were bought by the state for more than $200,000 an acre.

Fairfax County Executive J. Hamilton Lambert confirmed that the county Office of Transportation and Office of Comprehensive Planning each received a federal grand jury subpoena seeking records, but he declined to elaborate. An official with the county Office of Assessments said that agency also received a grand jury subpoena for information about land in the path of the parkway.

"In dealing with federal law enforcement agencies, the county has always taken the position that we should cooperate as much as possible without interfering," Lambert said.

Officials for the FBI, the lead agency in the investigation, and the U.S. Attorney's Office for the Eastern District of Virginia would not comment on the subpoenas or the investigation.

Most county officials were reluctant to discuss the subpoenas. They noted that any hint of impropriety in land use matters traditionally has been extremely sensitive in the county.

In the late 1960s, three supervisors and five developers were convicted of federal bribery and conspiracy charges stemming from a grand jury investigation of improper rezonings.

Sources familiar with the subpoenas said they were all to be answered by yesterday.

According to sources, the subpoena received by the county Office of Transportation asked for any records relating to meetings between two men and agency officials that were said to have occurred in October to December of 1984.

The sources said that the transportation office responded to the grand jury that it did not have any of the information that was sought.

The identities of the men could not be determined.

The subpoena sent to the Office of Comprehensive Planning asked for records pertaining to a variety of rezonings, none of which matched the five listed in the Office of Transportation subpoena, sources said.

The subpoena sent to the Office of Assessments sought "copies of property tax assessments from 1980 to 1989 for all lots along Hooes Road from Accotink Creek to I-95 {that were} acquired by the Commonwealth of Virginia or the County of Fairfax in connection with the construction of the Springfield-Franconia Parkway," an official said. That is the technical name of the northern spur of the Fairfax County Parkway.