Acid hydrolysis of ethyl acetate uses
The products of the reaction are perfectly miscible with water and are harmless to environment in low concentrations. My guess that the leftovers of ethyl acetate can be turned to ethanol and acetic acid before disposal.

For example here you can see that ethyl acetate is forbidden from sewer disposal while ethanol and acetic acid are allowed.

https://www.vumc.org/safety/waste/chemical-waste-sewer-disposal