Employees of the Chester Upland School District in Pennsylvania will show up for work on the first day of school next Wednesday, but they don’t expect to get paid. The district, which has been struggling with financial and academic problems for decades, is on the edge of insolvency and cannot make payroll, state and local officials have said. So on Thursday, about 200 members of the local teachers union voted unanimously to work without pay as the new school year opens. They were joined by secretaries, school bus drivers, janitors and administrators. … Chester Upland is facing a $22 million deficit that could grow to more than $46 million without major intervention, Sheridan said. He blamed several factors: local mismanagement, state cuts in education spending under the previous governor and a state law that requires traditional school districts to pay charter schools significant amounts for students who live within their boundaries but attend charters. Public charter schools, which are publicly funded but privately run, have been growing to the point that they educate nearly half the students who live in the Chester Upland district. Chester Upland pays local charter schools about $64 million in tuition payments — more than it receives in state school aid.