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The Chicago Water Department: Providing Safe and Reliable Water to the City

March 2, 2023

The Chicago Water Department: Providing Safe and Reliable Water to the City

The Chicago Water Department (CWD) is responsible for providing safe and reliable drinking water to the residents of the city of Chicago. With a population of over 2.7 million people, Chicago's water supply is one of the largest in the country. The CWD manages and maintains the water supply system, which includes treatment plants, pumping stations, reservoirs, and over 4,000 miles of water mains and service pipes.

History of the Chicago Water Department

The CWD has a long and storied history dating back to the 1850s when the city first established a water supply system. At the time, Chicago was growing rapidly and needed a reliable source of water for its residents. The first water supply system was a series of wooden pipes that brought water from Lake Michigan to the city. Over the years, the system was expanded and modernized, with new treatment plants and pumping stations added to meet the growing demand for water.

In the early 1900s, the city began building a massive system of tunnels and canals to divert water from Lake Michigan to the city's treatment plants. The system, known as the Chicago Water System, is still in use today and is considered one of the greatest engineering achievements in the world.

The CWD Today

Today, the CWD is responsible for managing the entire water supply system for the city of Chicago. The department has over 2,000 employees who work around the clock to ensure that the city's water supply is safe and reliable. The CWD treats an average of 1 billion gallons of water per day and provides water to over 1 million customers.

The CWD is also responsible for maintaining the city's water infrastructure, including treatment plants, pumping stations, and distribution networks. The department conducts regular maintenance and repairs to ensure that the system is operating at peak efficiency and that there are no leaks or other issues that could impact water quality.

Water Quality and Safety

One of the primary responsibilities of the CWD is to ensure that the city's water supply is safe and free from contaminants. The department uses a multi-step treatment process to remove impurities and ensure that the water is safe to drink. This process includes:

  1. Coagulation and Flocculation: Chemicals are added to the water to make impurities stick together and form larger particles.
  2. Sedimentation: The larger particles settle to the bottom of the treatment tanks.
  3. Filtration: The water is passed through filters to remove any remaining impurities.
  4. Disinfection: Chlorine is added to the water to kill any remaining bacteria and viruses.

The CWD also conducts regular testing of the city's water supply to ensure that it meets or exceeds all federal and state water quality standards. The department publishes an annual water quality report that provides detailed information about the city's water supply and any issues that may impact water quality.

 A Chicago water certificate is a document issued by the City of Chicago that certifies that a property has been connected to the city's water supply system and that all fees and charges for the connection have been paid. The certificate is typically required when a property is sold or transferred, and it serves as proof that the property has a legal and functional connection to the city's water supply. If you are buying a property in Chicago and need a water certificate, you should contact the City of Chicago Department of Water Management to request one. https://www.chicagofpcservice.com/