We put out two containers of old sandbox sand this week but the trucks did not take them because they weighed over 45 pounds each.The key to the answer is in the container weight. In Montgomery County, we ask that cans, containers, and bags weigh 45 pounds or less. This rule helps protect the backs of your collection crews.
In the situation here, repackage the sand into smaller amounts, and the containers should be whisked away with your next trash collection. Or, you may self-haul the sand directly to the Shady Grove Transfer Station. The Transfer Station does not have per-container weight limits. But, watch for the health of your back as you load and unload your vehicle!
Trash?! Yes, sand is disposed of as trash. Our yard trim collections are limited to grass, leaves, and brush.
What else can you do with "waste" sand? Consider putting it back into service in another way. One suggestion: mix it with compost and soil as you build a rain garden in your yard. More information about rain gardens.