How a faulty sewer line increase the risk of waterborne disease explain?

A faulty sewer line can leak sewage into the surrounding soil and groundwater, contaminating sources of drinking water. This contaminated water can spread disease-causing bacteria and pathogens, increasing the risk of waterborne diseases such as cholera, dysentery, and hepatitis among people who consume or come into contact with the polluted water. Regular maintenance and prompt repair of sewer lines are essential to prevent the spread of waterborne illnesses.