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In page Shasta Lake, California:

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When oil production slowed down in the 1970s, Redding surpassed Central Valley in population in 1965 when it incorporated the community of Enterprise[citation needed]. The population figures in 1980 were Central Valley at 3,424, Project City at 1,659, and Summit City at 1,139. Talk of incorporation spread in the early 1990s and it became a reality on July 2, 1993, when 60% of the communities' people voted for incorporation.