A friend of mine has her kids at Bondi Public School. They have an ongoing problem with locals dumping quite sizable quantities of rubbish in and around the school grounds.
They don't sit around though and wait for someone else to report it and remove it. They get right onto it, reporting it to Waverly Council straight away and reporting dumpers if they catch them in the act.
They don't expect council to magically find out about rubbish like this and arrange for its removal. They know that council does not have a CCTV system blanketing the suburbs, with operators sitting at terminals constantly scanning for dumped rubbish on the side of the road. The "CCTV system" is the Mark I eyeball of local residents.