Just received this notice from The Landscape Center (the District's landscape maintenance contractor.  They couldn't provide a specific window for the treatment of the Commons lawn, so to be safe please keep pets off the Commons all day Monday 4/11.

"Tru Green will be providing your lawn treatment Monday.  This will be a pre-emergent, mixed with a slow-release fertilizer.  Pets are fine after the application, but we always recommend 2-3 hours, to be sure."