A county high school's refusal to hold its senior prom at a country club involved in a racial incident has reignited community discussion of the two-year-old incident.

"There are black families in Columbia who still do not feel right about going back there. I feel the issue has never been properly resolved," said Glenda Johnson, whose daughter was among approximately 150 students at Oakland Mills High School who signed a petition asking that their dance not be held at Turf Valley Hotel and Country Club.

Johnson added that although members of the school's African American Awareness Club first raised the issue at Oakland Mills, "It's not just a black-white thing. It's an issue where they {the country club} insulted a whole race of people, and everyone is offended by it."

Turf Valley's owner, who said he has apologized and made peace with the county's black community, condemned school officials for allowing the student boycott.

"I deplore a school system that even tacitly allows such pettiness to fester and flourish," Nicholas B. Mangione Sr. wrote in an open letter published in a local paper. "Those in authority should have shouted down such attitudes."

The matter resurfaced recently after some members of the senior class and their parents objected to school officials' plans to hold the prom at Turf Valley, whose banquet facilities are among the county's largest. The class intends to hold the spring 1991 affair at a Baltimore hotel.

Students objected to Turf Valley, junior class president Leah Adamson said, because they believed Mangione had not acted properly after the February 1988 incident, when a manager at Turf Valley inadvertently left racial slurs on the answering machine of an NAACP member, who had called the club to ask about its minority hiring practices.

"When we have a prom we want everyone to feel comfortable and feel wanted and not be looking over their shoulders, wondering if somebody's coming after them," Adamson said.

The 1988 incident outraged the county's black community and prompted business groups, elected officials and others to boycott Turf Valley informally for a time. Now, local Chamber of Commerce and Democratic Party functions are held there regularly.

A few business owners, members of black fraternal and sorority groups and School Superintendent Michael Hickey, however, were outspoken in deploring the racial remarks and staying away from Turf Valley.

Although Hickey has declared that there is no specific school policy regarding patronage of the club, he has supported the Oakland Mills students' decision.

"The kids are just trying to follow their consciences," said schools spokeswoman Patti Vierkant, who said she thinks there have been no proms at Turf Valley since the incident.

There is still "a residue of feeling among some members of the community about the incident and the circumstances around it," Hickey said in a recent letter to Mangione.

That lingering resentment and confusion may be due in part to the NAACP's open-ended response to the incident. The civil rights group's state leader worked out a "Statement of Cooperation" with Mangione. Since then, NAACP leaders say, their efforts to get Mangione to live up to that agreement have been frustrating.

"We're giving up for now; we can't get him to agree to anything," said Elhart Flurry, the NAACP's local branch president. "We've been up there to talk to him three times. Why spin our wheels? Why waste our time?"

The group said Mangione originally agreed to fire Fred Grimmel, the manager who made the racial remarks, and to see that "fair hiring practices be operative at all levels of employment" and that sensitivity training be provided for all employees.

After nearly two years of intermittent discussions with the club owner, the NAACP said that Grimmel, Mangione's nephew, "was rehired; opportunity to verify employment figures has not been provided; and no sensitivity training program has been provided for employees."

The county Human Relations Commission investigated hiring practices at Turf Valley and found no pattern or practice of discrimination.

Mangione was out of town and unavailable for comment, according to staff at his Towson-based Commercial Contractors Inc.

Flurry stopped short of calling for a boycott, which is prohibited by the organization's national office.

He did release results of a survey showing that members support the NAACP's approach and its standing request that Mangione participate in a voluntary educational and training program aimed at eliminating bias from the work place.

School officials said they want to talk with Mangione. "We don't want to continue to have this kind of friction," Vierkant said.