Description: The State of Arizona has more than 100,000 known miles of surface water drainages at medium resolution in the National Hydrography Dataset. These surface waters are divided into segments, known individually as a reach. A reach is a section of a stream or river along which similar hydrologic conditions exist. These hydrologic conditions are described as flow regimes in statute as follows:Perennial means a surface water or portion of surface water that flows continuously through the year.Intermittent means a surface water or portion of surface water that flows continuously only at certain times of the year and more than in direct response to precipitation, such as when it receives water from a spring, elevated groundwater table or another surface source, such as melting snowpack.Ephemeral means a surface water or portion of surface water that flows or pools only in direct response to precipitation.See Arizona Revised Statutes Title 49, Chapter 2, Article 1
Copyright Text: Arizona Department of Environmental Quality (ADEQ), Water Quality Division.
Description: The State of Arizona has more than 100,000 known miles of surface water drainages at medium resolution in the National Hydrography Dataset. These surface waters are divided into segments, known individually as a reach. A reach is a section of a stream or river along which similar hydrologic conditions exist. These hydrologic conditions are described as flow regimes in statute as follows:Perennial means a surface water or portion of surface water that flows continuously through the year.Intermittent means a surface water or portion of surface water that flows continuously only at certain times of the year and more than in direct response to precipitation, such as when it receives water from a spring, elevated groundwater table or another surface source, such as melting snowpack.Ephemeral means a surface water or portion of surface water that flows or pools only in direct response to precipitation.See Arizona Revised Statutes Title 49, Chapter 2, Article 1
Copyright Text: Arizona Department of Environmental Quality (ADEQ), Water Quality Division.