The following actions were taken at the Dec. 15 meeting of the Prince William Board of County Supervisors. For more information, call 335-6600.

COMPROMISE TRASH VOTE -- Despite protests from some homeowners, a divided Board of Supervisors approved the sale of a $3.4 million revenue note for a partial expansion of the county's only sanitary landfill, at Independent Hill.

In a 4-to-3 vote, the board backed away from original county plans to expand the landfill by up to 545 acres -- which would have extended its life by about 30 years -- and voted instead for a much smaller expansion, to purchase about 50 acres, plus buffer zones, adjacent to Powell's Creek, just south of the landfill.

This will reduce the the expansion by 60 percent and will extend the landfill's life only 18 months beyond 1996 when it is expected to be filled to capacity, according to landfill Superintendent Clarence Hall.

The limited expansion brought criticism from both board members and residents.

Tony Guiffre (R-Gainesville) called the partial expansion "short-sighted."

However, a dozen residents said even a slight expansion of the landfill could increase traffic, noise, odors, rodents and might contaminate nearby water wells.

"Who on this board would like to live with the smell of a landfill in your backyard?" asked Milton Moore of nearby Minnieville Manor. "I see none of you are raising your hands."

Voting in favor of the compromise were supervisors: G. Richard Pfitzner, a Democrat whose district includes the landfill; Kathleen K. Seefeldt (D-Occoquan); Donald E. Kidwell (R-Woodbridge); and Joseph D. Reading (D-Brentsville). Supervisors Guiffre, John D. Jenkins (D-Neabsco) and Edwin King (D-Dumfries) voted against the compromise expansion.

SCHOOL BONDS SALE APPROVED -- The board unanimously approved the sale of $25.19 million in bonds for new school construction approved by voters in last month's referendum.

The remainder of the $44.89 million authorized in the referendum -- $19.7 million -- will be raised by bonds sold in January 1989, school officials said.

Of the bonds sold, $4 million will be used to build new high schools, $9.99 million to improve elementary schools and $11.2 million to build new middle schools.

LAND TRANSFERRED FOR PARK -- The board unanimously approved the transfer of a 26-acre site west of Manassas to the Park Authority to be used as a park with an indoor recreation center and a county police substation.

The land off Ashton Drive was originally donated to the School Board by the Crestwood Construction Corp. in 1973, but was turned over to the county in 1986.

Under a master parks plan, most of the parcel is slated for an $8 million indoor recreation complex that will include a gymnasium, a racquetball court and a pool. The rest of the parcel will be developed for a park with jogging trails and picnic areas. Five acres on the southeast corner of the parcel are slated for a county police substation much like the Gar-Field substation on Cardinal Drive in eastern Prince William County.

COUNTY FINANCIAL REPORT -- The county finance director presented an annual financial report for fiscal 1987, which ended last June 30, that concludes the county was in a "strong cash and investment position."

The report said the county's total assets, including all funds and property, increased from $445 million last fiscal year to $471 million this year and that the county's equity -- assets minus debt -- increased from $322 million to $352 million. The auditor told the board the county's financial outlook was just as good in December as it was in July.

COMMUTER BUS SERVICE EXPANDED -- The board unanimously authorized $84,954 for two additional commuter buses for Dale City and Lake Ridge service areas, where the number of riders has increased by 13 percent since August.

Eight of the county's 15 commuter buses serving those areas were filled and some passengers had to stand, according to the resolution.

Up to 1,600 riders commute daily by bus between those areas and District.

LAST MEETING -- Board members commended each other as they ended the last meeting of the year. Four new members, William J. Becker (R-Brentsville), Terrence Spellane (Independent-Coles), Hilda Barg (D-Woodbridge) and Robert L. Cole (D-Gainesville) will join three incumbents on the board at the next meeting scheduled for Jan. 5, 1988. The new members replace Tony Guiffre, Joseph Reading, Donald Kidwell, G. Richard Pfitzner.