§ 58.20.170. Zones -- Technical definitions
For purposes of more precisely defining the Washington coordinate system of 1983, the following definition by the national geodetic survey is adopted:
The Washington coordinate system of 1983, north zone, is a Lambert conformal conic projection of the GRS 80 spheroid, having standard parallels at north latitudes 47 30' and 48 44', along which parallels the scale shall be exact. The origin of coordinates is at the intersection of the meridian 120 50' west of Greenwich and the parallel 47 00' north latitude. This origin is given the coordinates: E = 500,000 meters and N = 0 meters.
The Washington coordinate system of 1983, south zone, is a Lambert conformal conic projection of the GRS 80 spheroid, having standard parallels at north latitudes 45 50' and 47 20', along which parallels the scale shall be exact. The origin of coordinates is at the intersection of the meridian 120 30' west of Greenwich and the parallel 45 20' north latitude. This origin is given the coordinates: E = 500,000 meters and N = 0 meters.
[1989 c 54 § 15.]
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