COVID-19 Community Levels Map Update, August 12, 2022: The Centers for Disease Control and Prevention has listed New Haven, Fairfield, Litchfield, New London and Middlesex Counties in the Medium/Yellow category as part of its COVID-19 Community Levels Map. Hartford, Tolland, and Windham Counties are listed in the Low/Green category. Visit the CDC COVID-19 Community Levels Map for updates.


Monkeypox: Please visit our monkeypox webpage for the latest updates.

The Drinking Water Section develops and provides technical guidelines for the design and construction of water and treatment works projects and drinking water related practices such as bulk water hauling. The technical guidelines are intended primarily for public water system certified operators, engineers, and consultants to help ensure that best engineering and management practices are being followed to help assist in the approval process. The technical information provided in the guidelines includes accepted best practices from Recommended Standards for Water Works and from organizations such as the American Water Works Association.

The Drinking Water Section is continuously developing new guidelines and revising existing ones due to the dynamic nature of drinking water delivery and treatment technology and as additional information becomes available. Public comments on the technical guidelines are always encouraged and may be considered for future revisions.

Technical Guidance