If I understand correctly, the 10K cash delivery and the two checks to petty cash were credits to cash on behalf of the business (which I am assuming is an entity) and are subject to aggregation.
The 1K payroll check was cashed on behalf of the payee, not the business, and it is not subject to aggregation.
_________________________
In this world you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant.