This series of annual water resource data reports provides the hydrologic data collected by Idaho Power's Water Management Department. These reports have been published in an effort to make this data available to interested parties outside of Idaho Power Company.

These reports are the product of significant efforts by several dedicated professional individuals who collected, compiled, analyzed and verified the data summarized within the individual reports. As a result, this series of reports should be considered the “official record” of flows and water levels collected by Idaho Power's Water Management Department.

Water Year 2007 (PDF, 353KB)

Water Year 2006 (PDF, 315KB)

Water Year 2005 (PDF, 507KB)

Water Year 2004 (PDF, 331KB)

Water Year 2003 (PDF, 610KB)

Water Year 2002 (PDF, 218KB)

Water Year 2001 (PDF, 1M)

Water Year 2000 (PDF, 730KB)

Water Year 1999 (PDF, 56KB)

Water Year 1998 (PDF, 42KB)

Water Year 1997 (PDF, 32KB)