An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Revised Total Coliform Rule Seasonal Startup Checklist

Starting in 2016, this form will be required to be completed by seasonal systems PRIOR to serving water to the public. This form provides start-up procedures for drinking water systems that shut down and depressurize and are not operational year around. This form is also available in MS Word format.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.