When you think of problems
with water, you probably think about dry desert regions of Africa
or the Middle East. Even, parts of the American West have had their
issues. But what about the big cities like Los Angeles, or San
Francisco. How about Atlanta and Orlando?
Believe it or not, the water problem
is worse than most people realize, particularly in several large
cities which are occasionally low on water already but will face
definite shortfalls in the next few years.
A report issued in October on water
risk by environmental research and sustainability group Ceres and
another study from the Natural
Resources Defense Council were analyzed by 24/7 Wall Street
which identified ten major cities at high risk of a water
shortage.
Now when they talk about severe
water shortages they're not just talking about drought conditions
that require us to not water our lawns or take shorter showers.
These are the kinds of severe shortages that could make life in
some of America's largest cities nearly unbearable.
For example, besides the competition
over available drinking water, a number of industries rely on
regular access to water. Without it, some people would be out of
work if the industries had to shut down. Another problem is not so
direct. Very low water supplies creates issues for cities that have
sold bonds based on their needs for infrastructure to move, clean
and supply water. Extreme disruptions of the water supply of any
city would have severe financial and human consequences.
The Natural Resources Defense
Council (NRDC) report says the risk to water sustainability is
based on the following criteria: (1) projected water demand as a
share of available precipitation; (2) groundwater use as a share of
projected available precipitation; (3) susceptibility to drought;
(4) projected increase in freshwater withdrawals; and (5) projected
increase in summer water deficit.
There are ten cities with the
greatest exposure to problems that could cause large imbalances of
water supply and demand. There are also a number of other
metropolitan areas that could face similar problems but their risks
are not quite as high.
Water shortage in U.S. cities is one
of the major issues facing urban areas over the next ten years and
most of us aren't even aware of it.
Here, according to 24/7 Wall Street
are the ten largest cities by population that have the greatest
chance of running out of water.
Orlando,
Fla.
North-central Florida, especially
Orange County where Orlando is located, has experienced frequent
droughts in the last decade. As a consequence, the area has
implemented extreme conservation measures, including aggressive
water-rationing policies and lawn-watering bans. After the drought
and resulting wildfires subsided, however, Orlando faced another
problem. As of 2013, Orlando will no longer be able to increase the
rate at which it uses water from the city's main source of fresh
water supply. This presents a major problem for city officials: how
does the limited water supply continue to meet demand for one of
the fastest-growing regions in the state? Orlando Utilities
Commission water usage trends show Orlando water demand exceeding
the supply by approximately 2014 if no action is taken. There are
plans in the works to tap the St. John's River for irrigation, and
eventually drinking water. Many, however, are skeptical that even
this will be enough to meet Orlando's growing demand.
Atlanta
Between 2007 and 2008, the Southeast
experienced a major drought, which depleted the region's major
water supplies. No city in the south suffered more than Atlanta,
the second-fastest-growing metropolitan area in the last eight
years. The crisis began when the Army Corps of Engineers released
more than 20 billion gallons of water from Lake Lanier, the city's
primary source of water. Continued poor rainfall brought the lake
to its lowest recorded levels. At one point, city officials
reported there was only three months left of stored fresh water to
supply Atlanta. The drought eventually subsided and consistent rain
returned the lake to less dangerous levels. However, Atlanta may
continue to be at risk, as the lake is the site of an ongoing legal
conflict between Georgia, Alabama and Florida, all of which rely on
the reservoir for fresh water. Last year, a federal judge declared
Atlanta's withdrawals from the lake illegal, and if the ruling
stands, the city will lose roughly 40% of its water supply by
2012.
Tucson,
Ariz.
The NRDC study rates Pima County,
Ariz., where Tuscon is located, as an area with extreme risk of
water shortage. The city is in the Sonora Desert, an extremely arid
region that receives less than 12 inches of rainfall each year.
Currently, the Tucson region uses about 350,000 acre-feet of water
per year. At this rate, Tucson's groundwater supply, which now
provides the majority of the city's water, has a very limited life
span. In addition to this, the city is currently bringing in
314,000 acre-feet per year from the Colorado River under the
Central Arizona Project. However, Tuscon is growing rapidly. This,
combined with the political uncertainty of the Central Arizona
Project allocation, places Tucson at extreme risk for future water
shortages.
Las
Vegas
In the middle of the Mojave Desert,
with an annual precipitation rate of only 10 cm, Las Vegas must
rely on distant sources for its fresh water. The city's main source
is Lake Mead, which supplies 85% of the water used in the Las Vegas
Valley. Unfortunately, the lake is 59% empty and is approaching its
first water shortage ever. In addition to Las Vegas, it would
affect other areas of Nevada and Arizona. Moreover, it could
potentially stop the Hoover Dam from producing electricity -- as
soon as 2013. This would affect many big California cities that
receive hydroelectric power through the dam.
Fort Worth,
Texas
As Fort Worth continues to grow, the
amount of water demand has continued to exceed the amount of water
available through local supply. As a result, the city, which is in
Tarrant County, must rely on storage water, making the system much
more exposed to the worst effects of prolonged drought. To remedy
this problem, the Tarrant Regional Water District is trying to
bring in more water from Oklahoma's Red River. Oklahoma, wishing to
preserve its water sources, limits interstate water sales. Fort
Worth has countered with a lawsuit, which is pending in the U.S.
Court of Appeals.
San Francisco Bay
Area
Much like the Southeast in the early
2000's, California has experienced intermittent droughts that have
brought the area's water supply to the brink of disaster. After
several years of drought between 2005 and 2007, the Bay Area, which
represents more than 3.7 million people, was forced to adopt
aggressive water usage restrictions. Legal battles ensued between
San Fransisco area legislators and those in the Sacramento delta
who believed they deserved Bay Area water from major sources, like
Lake Hetch Hetchy. According to the NRDC and Ceres studies, the San
Fransisco Bay Area, including adjacent cities San Jose and Oakland,
are "very likely" to experience a severe crisis as a result of
water shortage sometime within the next 50 years.
San Antonio,
Texas
Bexar County, Texas, where San
Antonio is located, possesses the highest rating given by the
Natural Resources Defense Council with regards to water
sustainability. This means that the area is at extremely high risk
for water demand exceeding supply by 2050 if no major systematic
changes are made. As most surface water from lakes and rivers in
Texas have already been claimed by varying districts across Texas,
most counties are now looking at groundwater to meet future demand.
San Antonio has attempted to secure water from a number of Texas
groundwater conservation districts. Due to legal obstacles, this
has proven to be difficult. Today, many experts, including members
of the Texas Water Development Board, recommend undertaking a major
project to ensure future sustainability, such as a desalination
plant on the Gulf Coast.
Phoenix
Like many of the other western
cities on this list, Phoenix is extremely dependent on water
imported from the Colorado River. This is because nearly half of
the water the city's residents use comes from this significant
source. As the Colorado River Basin enters the eleventh year of its
drought, the city's reliance on the river may soon become a serious
problem. If the drought continues, water deliveries to Arizona
could potentially be cut back. To keep up a sufficient water
supply, Phoenix is adopting an aggressive campaign to recycle
water, replenish groundwater and try to dissuade over-consumption.
Time will tell if it these measures will be enough.
Houston
Throughout most of its history, the
city of Houston primarily drew water from the Jasper Aquifer,
located along the southeastern coast of Texas. Over the last 30
years, the city began to suffer from dramatic rises in sea level of
nearly an inch a year. Geologists eventually realized that the
cause was Houston's withdrawal of fresh water from the aquifer
located under the city. This discovery forced city officials to use
nearby Lake Houston and Lake Conroe for municipal water instead of
the aquifer. Since 2000, Houston has been the fifth fastest-growing
city in the country, and its presence in an area with high drought
likelihood makes it an immediate risk for serious water
shortages.
Los
Angeles
In the 1980's, Los Angeles suffered
a major crisis when the city was forced to stop using 40% of its
drinking water due to industrial runoff contamination. Like Las
Vegas, the city now relies on importing water from the Colorado
River via hundreds of miles of aqueducts. The Colorado may only be
a temporary solution, however, as the city continues to increase
its demand at an unsustainable rate. In its utility risk rating,
Ceres gave the Los Angeles Department of Water & Power the
highest likelihood of risk among the cities it assessed. That list
included Atlanta and the Forth Worth area. On top of this, the
Hoover Dam, which is the main source of electricity for L.A. and
much of the greater Southwest, is also producing at a lower rate
than it has historically. Some scientists suspect this drop-off
will continue to a point where its electricity production is too
small to sustain the dam economically. Los Angeles, even if the dam
doesn't cease production in 2013, as some predict, still faces
serious water shortages.
Two reports show ten major American cities could experience a water shortage, some within the next two to three years...