Highly anticipated USACE Storage Accounting Report is now available

The Corps of Engineers/Institute for Water Resources has issued a report of great interest to NWSA and the water supply community, entitled Technical Considerations in Storage Accounting for USACE Water Supply Agreements. The report reviews technical considerations in using storage accounting to study and administer water supply storage agreements at USACE multipurpose reservoir projects.


The report reviews the fundamentals of storage accounting and considers different approaches in terms of methods and assumptions that may be used. Considerations discussed in the report include the apportionment of reservoir storage space, inflows and losses among accounts. Considerations in apportioning the reservoir storage space include the effects of sedimentation and seasonally varying target reservoir elevations.


Need to know more after reading the report? Join us in Kansas City for a deep dive on this subject. Mr. Brad Hudgens, USACE Water Supply Business Line Manager and author of the technical report, will present his findings and recommendations at the NWSA Annual Meeting on October 28, 2021. Brad welcomes feedback from the NWSA membership, noting that the report does not represent USACE policy. The report does not reach any firm conclusions about methods, and is intended as a technical resource to advance the conversation on storage accounting.


The report can be downloaded at the following link:


Technical Considerations in Storage Accounting for USACE Water Supply Agreements

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