Compliance and Annual Reporting Guidance about Clean Water Act Laws

EPA works with its federal, state and tribal regulatory partners to monitor and ensure compliance with clean water laws and regulations in order to protect human health and the environment. The Clean Water Act is the primary federal law governing water pollution. You may find additional information of interest regarding EPA's enforcement and compliance and how to report a violation at these links.

If you are a publicly owned treatment works that meets the applicability requirements and your sewage sludge is land applied, surface disposed, or you operate a sewage sludge incinerator, you will need to submit an annual report by February 19 of each year covering the previous year. Your facility will meet the applicability requirements if your facility’s design flow rate is equal to or greater than one million gallons per day, serves 10,000 people or more, or is required to have an approved pretreatment program (Class I Sludge Management Facility). The Biosolids Center of Excellence in Kansas City received and entered data for 2308 annual biosolids reports into the Region 7 Biosolids Database in 2014. The data entered included receipt date, quantity of biosolids produced and facility contact information (street address and mailing address).

If you have questions related to annual reports, please write to EPA Region 7 (

The documents provided below aim to assist publicly owned treatment works meet applicable Part 503 compliance and annual reporting requirements.

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