Frequent Questions

Are Initial Distribution System Evaluation (IDSE) submissions provided to EPA?s Information Processing and Management Center (IPMC) subject to FOIA requests?

IDSE submissions will not be considered confidential business information and are subject to the Freedom of Information Act (FOIA). IDSE submissions should not contain information that poses a security risk to the public water system (PWS). Chapters 5, 6, and 7 of the Initial Distribution System Evaluation Guidance Manual (EPA815-B-06-002, January 2006) provide guidelines on the kinds of information a PWS owner or operator may want to exclude from the distribution system schematic for security reasons.

Additional information about IDSE submissions is available at
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