ST. CHARLES, Missouri — Seven library branches could get locked property-tax payment boxes in December under a pilot program that goes before the St. Charles County Council on Monday.

The proposed sites are Augusta, Boone Trails, Corporate Parkway, Deer Run, Kisker Road, Spencer Road and WingHaven. The draft agreement calls for boxes to be installed by Dec. 7 and removed Dec. 31.

The boxes would be available during normal branch hours. They would accept payments without cash, and only authorized county collector staff could open them. The county would collect the deposits at least weekly.

The proposal is intended to save some residents a trip to the county offices. The draft says applicable law and the collector’s procedures would still determine when a payment is considered received. The bill is scheduled for introduction Monday.