Replacement work on heating, ventilation and air conditioning replacements for Marion High school has been going strong since June.

Michael Porch, president of Dean E. Norris, a company subcontracting work on the project, said planners are hoping to have it finished by Aug. 9.

That would be just in time before the first day of classes on Aug. 15. The new system is replacing window air conditioning units that are currently in use.