Description: Basin programs (also known as "basin plans") are state administrative rules which set down future allowable water uses in Oregon's eighteen major river basins. (Batash, Rick. 1998. Waters of Oregon. p. 63) Carried out by OWRD staff under the direction of the State Water Resources Board (later "Commission") under the authority of ORS 536.300.
Description: The OWRD Basin Programs are basin-specific administrative rules that govern the allocation of water in each respective basin, including how water may be diverted from one basin to another. There are 18 Administrative Basins (map), most of which have an associated Basin Program.
The Administrative Basin boundaries were originally defined by OWRD map number 0.2, dated 1987, and entitled "Oregon Drainage Basins." The boundaries, for the most part, follow the hydrologic accounting units (level 3), and hydrologic cataloging units (level 4) in other areas.
While these boundaries were originally derived from hydrologic units, they have become static as administrative boundaries. As hydrologic units improve and "change" their boundaries, the Administrative Basin boundaries do not change.
Description: Watermaster Districts divide the state into 21 units to be managed by watermasters. Watermasters monitor streamflows and water levels and may cut off junior users to keep water flowing to senior users. They also implement other field work or enforcement within their district. List of watermaster contacts.
These boundaries generally follow hydrologic units, but not necessarily at the same hydrologic unit level (a mix of level 3, 4, and 5). These boundaries are static.
Description: The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureaus Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The American Indian/Alaska Native/Native Hawaiian (AIANNH) Areas Shapefile includes the following legal entities: federally recognized American Indian reservations and off-reservation trust land areas, state-recognized American Indian reservations, and Hawaiian home lands (HHLs). The statistical entities included are Alaska Native village statistical areas (ANVSAs), Oklahoma tribal statistical areas (OTSAs), tribal designated statistical areas (TDSAs), and state designated tribal statistical areas (SDTSAs). Joint use areas are also included in this shapefile refer to areas that are administered jointly and/or claimed by two or more American Indian tribes. The Census Bureau designates both legal and statistical joint use areas as unique geographic entities for the purpose of presenting statistical data. Note that tribal subdivisions and Alaska Native Regional Corporations (ANRCs) are additional types of American Indian/Alaska Native areas stored by the Census Bureau, but are displayed in separate shapefiles because of how they fall within the Census Bureaus geographic hierarchy. The State of Hawaiis Office of Hawaiian Home Lands provides the legal boundaries for the HHLs. The boundaries for ANVSAs, OTSAs, and TDSAs were delineated for the 2010 Census through the Tribal Statistical Areas Program (TSAP) by participants from the federally recognized tribal governments. The Bureau of Indian Affairs (BIA) within the U.S. Department of the Interior (DOI) provides the list of federally recognized tribes and only provides legal boundary information when the tribes need supporting records, if a boundary is based on treaty or another document that is historical or open to legal interpretation, or when another tribal, state, or local government challenges the depiction of a reservation or off-reservation trust land. The boundaries for federally recognized American Indian reservations and off-reservation trust lands are as of January 1, 2015, as reported by the federally recognized tribal governments through the Census Bureaus Boundary and Annexation Survey (BAS). The boundaries for state-recognized American Indian reservations and for SDTSAs were delineated by a state governor-appointed liaisons for the 2010 Census through the State American Indian Reservation Program and TSAP respectively.