Water, water, every where,
And all the boards did shrink;
Water, water, every where,
Nor any drop to drink.
The Rime of the Ancient Mariner
Samuel Taylor Coleridge
What a pickle we’re
in here in California (and the western United States for that matter). The rest
of the country overlooks their own various plagues, hurricanes, tornados,
politicians, and ridiculous winters to chastise us for our drought. As if we
caused it ourselves. Well, maybe there has been a small contribution. We have
grown exponentially during the past fifty years from about twenty million
people in the early 1970s to over 38.8 million today. Even though the rate of
growth has slowed during the last few years it is projected to reach 50 million
people by 2050. And more than half of these Californians will live in the lower
quarter of the state from San Diego to Ventura, which is fundamentally desert.
Even if this growth were reversed (see Oklahoma in the 1930s), the problem of water
supply/use would not change.
In the thirty years
since the publication of Marc Reisner’s Cadillac
Desert, the problems of the state have only worsened. This post isn’t about
the past, there are more than enough books, articles, speeches, and failed
policies to show that we have done little to prepare for something that we knew
would happen. Droughts come and go, but people don’t. The state will continue
to grow – now we must deal with it. Wishing otherwise is simplistic and
foolish.
There is one
problem – supply, there are three basic responses: conservation, increase
supply, reclamation.
Conservation is
usually the easiest politically to impose. The effects are almost immediate.
Reduce the flow of water through the spigot (usually annoying the user who must
wait to fill a pan or a sink – and still eventually use the same amount of
water), reduce the flow in toilets (resulting in filthier toilet bowls), and
reduce water used for the garden. We call it irrigation here in the west; in
the east it’s sprinklers – same issue. If there is one serious change that is
starting to become socially acceptable is the removal of lawns and replacing
them with more drought tolerant landscapes. All of these will have a dramatic
impact on use – while there still is water.
Everyone hopes that
next winter will be the one that changes everything – a winter of decent rainfall.
The past four years have progressively gotten worse, less water each year. And
the type of water (rain/snow) is even more to the problem. Agriculture uses
more than 80% of the water in the state and much of this comes from reservoirs
that store the snowmelt of the Sierras. This is the fundamental problem, warmer
winters mean more rain than snow and less spring melt. This leads to deeper
water wells in the Central Valley as the well water is drawn down. Some stories
say that in some aquifers they are pumping prehistoric water that is hundreds
of thousands years old – talk about draining your bank account.
We can increase the supply of water
by:
Towing icebergs from
the Arctic,
Buying water from
Canada and shipping it in pipelines (kind of like Keystone?),
Building desalination
plants on the coast and convert an endless supply of ocean water into potable
water (expensive – see Coleridge header above),
Converting idle
supertankers to carry water and fill them in Siberia or some other place with a
surplus water supply (the environmentalists will go bonkers over many of these,
I’m sure),
Prayer.
Most probably the
better fix is appropriate water use. I am now required in some of my
development projects (especially in the San Jose/Santa Clara County region) to
use grey water to irrigate the landscape. This is because the people of that
region put up the bonds to build the new infrastructure to take their processed
and cleaned effluent and reuse it within the county. Normally this processed
water is discharged into the environment through spray fields, creeks,
deep-water outfalls (San Francisco), and other non-productive systems. When
they discovered they could sell this processed water, a lot changed. This is a
very expensive no-brainer. To distribute water back into the residential market
requires millions if not billions of dollars in pipes, pumps, and new
residential plumbing systems. Will people support this type of cost remains to
be seen and how desperate we become?
Unquestionably the
most controversial will be the direct injection of this treated water into the
potable water supply, we are a long way from this eventuality but two or three
years more of profound drought will force many changes in our water use.
Stay Tuned . . . .
. . .
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