(1) For more precisely defining the Oregon coordinate systems, the following definitions by the National Geodetic Survey of the National Ocean Service are adopted:

(a) The Oregon Coordinate System of 1927, north zone, is a Lambert conformal projection of the Clarke Spheroid of 1866, having standard parallels at north latitudes 44 degrees 20 minutes and 46 degrees 00 minutes, along which parallels the scale shall be exact. The origin of coordinates is at the intersection of the meridian 120 degrees 30 minutes west of Greenwich and the parallel 43 degrees 40 minutes north latitude. This origin is given the coordinates: x−2,000,000 survey feet and y−0 survey feet, where one survey foot equals 1,200 divided by 3,937 meters exactly.

(b) The Oregon Coordinate System of 1927, south zone, is a Lambert conformal projection of the Clarke Spheroid of 1866, having standard parallels at north latitudes 42 degrees 20 minutes and 44 degrees 00 minutes along which parallels the scale shall be exact. The origin of coordinates is at the intersection of the meridian 120 degrees 30 minutes west of Greenwich and the parallel 41 degrees 40 minutes north latitude. This origin is given the coordinates: x−2,000,000 survey feet and y−0 survey feet, where one survey foot equals 1,200 divided by 3,937 meters exactly.

(c) The Oregon Coordinate System of 1983, north zone, is a Lambert conformal projection of the Geodetic Reference System of 1980, having standard parallels at north latitudes 44 degrees 20 minutes and 46 degrees 00 minutes, along which parallels the scale shall be exact. The origin of coordinates is at the intersection of the meridian 120 degrees 30 minutes west of Greenwich and the parallel 43 degrees 40 minutes north latitude. This origin is given the coordinates: x−2,500,000 meters (8,202,099.74 feet) and y−0 meters (0 feet), where one foot equals 0.3048 meters exactly.

(d) The Oregon Coordinate System of 1983, south zone, is a Lambert conformal projection of the Geodetic Reference System of 1980, having standard parallels at north latitudes 42 degrees 20 minutes and 44 degrees 00 minutes, along which parallels the scale shall be exact. The origin of coordinates is at the intersection of the meridian 120 degrees 30 minutes west of Greenwich and the parallel 41 degrees 40 minutes north latitude. This origin is given the coordinates: x−1,500,000 meters (4,921,259.84 feet) and y−0 meters (0 feet), where one foot equals 0.3048 meters exactly.

(2) The position of the Oregon Coordinate System shall be as marked on the ground by monumented horizontal control stations established in conformity with the standards and specifications adopted by the Federal Geodetic Control Committee for first-order and second-order geodetic surveying, whose geodetic positions have been rigidly adjusted on the North American datum of 1927 or 1983, and whose coordinates have been computed on a system defined in this section. Any such station may be used for establishing a survey connection with the Oregon Coordinate System.

(3) Nothing in this section is intended to limit the use of any coordinate system not identified as the “Oregon Coordinate System.” [Amended by 1985 c.202 §2]

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