LEWISTON – The state Department of Environmental Conservation will host two public meetings Monday on its draft proposal to allow CWM Chemical Services to renew its operating permit on its current Model City landfill.

The five-year renewal would not permit CWM to expand the size of the hazardous waste landfill. That request is to be considered at a later date.

The formal meetings are set for 5 and 7 p.m. Monday in Lewiston-Porter High School, 4061 Creek Road. A public availability session begins at 4 p.m.

The DEC also announced that it has doubled the length of the period for written comments from two months to four. The original comment period began Nov. 28 and was to expire Jan. 28; now, comments will be accepted until March 29.