Write an informative article about the recent boil water advisory in Richmond Hill, emphasizing the potential health risks associated with contaminated water and the necessary precautions residents should take. Explain the reasons behind the advisory, including the loss of water pressure and the possible threats of microbial contamination. Highlight the importance of following CDC guidelines for boiling water and the steps residents should take once the advisory is lifted. Additionally, discuss the broader significance of water quality and how it impacts public health within communities. Conclude by encouraging residents to stay informed and engaged with local health advisories to ensure their safety.