SPRINGFIELD — A new school voucher program proposed by Democratic state Sen. James Meeks of Chicago has cleared its first test, but murky waters loom ahead.

His voucher proposal would allow parents of students in the academically lowest 10 percent of Chicago Public Schools to have the option of sending their children to a private school, if space is available.

Meeks, formerly a strong advocate for improving Illinois’s public schools, said his plan comes as a result of violence and increasingly poor test scores in CPS schools.

“Right now, our General Assembly rules actually lock a kid into a low-performing school,” Meeks said. “And we have no plans to get the kid out.”

Teachers unions and parents are opposing the proposed legislation, saying that taking the students out of public schools will hurt the school system. When Meeks outlined his legislation last week to a Senate committee, the opposition was ready to speak up.

Ben Schwarm of the School Management Alliance said the program is not realistic because of funding issues. He said there is no way to know how many students will participate in the program until the school year starts.

“We don’t know how many of our students are going to leave our district,” Schwarm said. “We don’t know how many students from other districts are going to come to our schools on enrollment day because they don’t live here. And for planning purposes, setting a budget and so forth, that raises some problems.”

Matthew Johnson is a CPS parent who has children who attend Dewey Elementary School in Chicago. He said Meeks’ voucher proposal does not guarantee his children a better education. Also, he said it is an escape for CPS to avoid solving its problems.

“Who is going to hold [CPS] accountable?” Johnson asked.

The Archdiocese of Chicago supports the plan and would not require students who leave public schools to attend their private schools to meet any entrance requirements.

State Sen. Rickey Hendon, D-Chicago, serves on the Senate committee and supports Meeks’ plan. Although vouchers have historically been a Republican idea, Hendon said he believes the city of Chicago needs this option.

Hendon said CPS is failing the students in the bottom 10 percent of schools, and that he is tired of seeing the violence.

“We’ve been saying we’re going to educate out babies. We’re going to fix the schools. We’re going to find solutions,” Hendon said. “And nothing has changed. Absolutely, positively nothing.”

State Sens. Bradley Burzynski, R-Sycamore, and James Clayborne, D-East St. Louis, also voted to move Meeks’ proposal forward. It now goes to a Senate education subcommittee, where it is scheduled for a hearing on Wednesday.