When it comes to water and agriculture, California is upside-down.

That’s what historian Carey McWilliams wrote in his 1949 book, “California: The Great Exception.” Most of the water is in the northern part, and most of the best land for farming is further south.

But this “contrariness of nature” worked to humanity’s advantage in two ways, McWilliams wrote, because it stimulated inventiveness and technological achievement, and because “the long dry season is an enormous agricultural asset.”

That assumes you agree that abundant food production is a good thing, a view that in recent years has become unfashionable in places like Venezuela, Zimbabwe and San Francisco.

Rep. Devin Nunes, R-Visalia, described a stunning meeting he had with representatives of the Natural Resources Defense Council and other environmental activists in the summer of 2002 about the future of the San Joaquin Valley. “Their goal was to remove 1.3 million acres of farmland from production,” he said. “From Merced all the way down to Bakersfield, and on the entire west side of the Valley as well as part of the east side, productive agriculture would end, and the land would return to some ideal state of nature.”

That plan was moved forward when the Central Valley Project Improvement Act was passed by Congress in 1992. Under the law, 260 billion gallons of water on the Valley’s west side had to be diverted away from human uses and out to the environment.

Then a series of lawsuits under the Endangered Species Act secured protected status for smelt in 2008 and salmon in 2009, and that was enough to force the virtual shutdown of two major pumping stations that moved water to the Central Valley. Another lawsuit resulted in the San Joaquin River Settlement, later enacted by Congress at a cost of more than $1 billion to taxpayers, which diverted more water away from the Central Valley in an attempt to create salmon runs.

Farmers struggled to get by with groundwater, but in 2014, new California regulations limited that, too.

In 1949, McWilliams observed that if the Central Valley were a state, it would rank fifth in the nation for agricultural production. Today it has poverty and unemployment rates that would be right at home in the Great Depression.

And that’s why members of Congress from the region have repeatedly introduced legislation to adjust federal law in ways that would allow water to be restored to the Central Valley. The legislation passed the House several times only to die in the Senate.

Last year, Rep. David Valadao, R-Bakersfield, introduced it again, calling it the Western Water and American Food Security Act of 2015. President Obama immediately threatened a veto, but in May, Valadao attached the bill as an amendment to an energy bill already passed by the Senate, and the House passed it. …

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