How often does the Illinois EPA require routine bacteria samples to be taken and analyzed?

The Illinois EPA requires routine bacteria samples to be taken and analyzed on a monthly basis to ensure water quality and safety for public health. This frequency allows for timely detection of any contaminants or fluctuations in bacterial levels that could indicate potential issues with sanitation or treatment processes. Monthly sampling is also crucial for maintaining compliance with regulatory standards and helps water systems quickly address any problems that arise, ensuring safe drinking water and protecting public health. This practice aligns with the goal of proactive monitoring and management of water resources.