The Dickson County Commission is expected to formally end its debt-payment agreement with the Dickson County School Board, meaning any future assistance from the school system will be purely voluntary. The board voted in July to rescind the 1999 agreement to pay $1 million a year to help the county pay off debt from a school building program. Board members have been saying for years that conditions regarding the percentage of property and sales taxes the school system was to receive and student enrollment growth have not been met, making the agreement invalid. But the school board’s proposal to end the debt payments were met by a county attempt to withhold at least a portion of the payment this year in a three-year plan to end the agreement. When the Tennessee Department of Education ruled against the proposal, the county finally passed an adjusted budget without the payment. The agenda for Tuesday night’s county commission work session includes a vote on rescinding the agreement. The commission also is slated to appoint Ginger Brown to the Dickson County Sanitation Board to replace original board member Mary Littleton, who was elected to the Tennessee House of Representatives last year. When the sanitation board was created in 2011, three members were appointed to staggered terms so one term expires each year. Ken Nafe was appointed to a one-year term, then reappointed to a full three-year term in 2012. Littleton was appointed to the starting two-year term, which has expired. Jason Epley was appointed to a three-year term, which expires next year. Mayor Bob Rial is expected to nominate Brown to a three-year term, replacing Littleton. The commission also is expected to vote on a tax increment financing proposal for The Crossings at Dickson retail development and discuss proposals for a new contract for healthcare services for inmates in the county jail. The commission work session is 7 pm Tuesday after being rescheduled due to Labor Day.