Final answer:
In response to a sewage backup, a manager should enlist a professional plumber, contact the local sewage department, implement temporary safety measures, and consider temporarily shutting down the establishment if necessary.
Step-by-step explanation:
As a manager faced with a backup of raw sewage, there are several steps that should be taken to mitigate the issue and protect public health and the environment. Firstly, calling a professional plumber is necessary in order to address and repair the immediate technical issue causing the sewage backup. Secondly, contacting the local sewage department might be required, especially if the problem extends beyond your establishment's plumbing system. Furthermore, implementing temporary measures to minimize damage, such as closing affected areas and using sandbags to contain spills, is essential until professional help arrives. If the condition is severe and poses a health risk, shutting down the establishment temporarily might be the safest and most responsible action to take, ensuring both staff and customer safety.
The mention of a city releasing 16 million gallons of raw sewage into a lake demonstrates the gravity of sewage management issues and the need for effective wastewater treatment. Benefits of proper sewage treatment range from environmental to health advantages, emphasizing the crucial role that wastewater management plays in overall sustainability and public well-being.