Faced with dwindling enrollment and state funding, Grass Valley School District's Board of Trustees voted late Tuesday to not renew an interdistrict transfer agreement with Union Hill School District.Superintendent Eric Fredrickson said in each grade an average of 35 students who live in the Grass Valley School District are attending Union Hill School under the agreement."Primarily it's financial," Fredrickson said of the decision. "We lose revenue for each one of those students, at about $5,000 per student. "But is it all about dollars? That (loss of funding) transfers into program. We have a lot of programs we want to do, …