Saturday––Jeff
“The combination of increased water consumption
and prolonged drought is depleting resources in the Cyclades.”
That’s the headline of an in-depth investigative
report by environmental reporter Giorgos Lialios, published yesterday in Ekathimerini,
Greece’s newspaper of record. It’s a
subject I’ve observed firsthand for over a decade and
listened even longer to locals openly worry over.
What follows is Mr Lialios’ report. The words are all his, not mine, but I know
many of the islands mentioned well (no pun intended), what with my wife and I spending
much time on many of them and my setting a half-dozen of my books on those
islands. I take his article as a call to
action. We shall see.
Year after year, the pressure
increases. On the one hand, there is the explosive growth of tourism, followed
by an increase in consumption; on the other, there is drought. The small Aegean
islands are preparing for the start of the tourist season with their reservoirs
empty, their boreholes pumping brackish water, and an increasing dependence on
desalination. The first victim of this difficult situation is what agricultural
production is left on the islands, according to the doctrine of “water for the
people first and then everything else.”
In 2023, rainfall in the Aegean will
be limited for a third consecutive year. “Especially in the Cyclades and
southern Crete, which are the areas with the least rainfall, 2023 was a bad
year,” explains Kostas Lagouvardos, meteorologist and research director at the
National Observatory of Athens. “The last good year for the Aegean was 2019,
with a lot of rain in the east and south. Since then, rainfall has been below
average. Especially in the Cyclades, where the rainy season lasts only five or
six months, it only takes two bad years to create a problem.” In 2023 Andros
received 363 millimeters of rain, compared to an average of 506 mm, Tinos
received 299 mm, compared to an average of 330 mm, Naxos received 270 mm,
compared to an average of 306 mm, and Ios received 195 mm, compared to an
average of 285 mm.
As a result, the Aegean islands are
preparing for a difficult year. “The reservoirs on the islands are empty. Many
islands will have problems this year. And the first victims will be crop
growers and livestock breeders. If it doesn’t rain, there is no vegetation, so
the farmer has to buy fodder. Last year the farmers of Naxos bought bales of
clover from Bulgaria,” explains Ilias Nokas, head of the Directorate of South
Aegean Water at the Decentralized Administration of the Aegean.
“Naxos has two dams. Last year they
had 375,000 cubic meters of water, this year they have 30,000 cubic meters of
water,” says Dimitris Lianos, mayor of the island. “We’re going to struggle
this year. It’s not just tourism that’s important to us, but also agriculture
and livestock farming. The first to be affected are the farmers. Potato farmers
are already thinking of not planting this year because they will not be able to
water their crops. It will be a difficult year for everyone. However, compared
to most of the Cyclades islands, Naxos is still in a better position. “The
island has water, we have two boreholes at a depth of 171 meters with very good
quality water and the level has not dropped. What the island needs is a master
plan for water supply. Unfortunately, because of localism, we cannot make more
rational use of the water supply – some villages exploit springs and do not
allow others to be supplied with water. The town of Naxos now has a
desalination plant. We also need irrigation networks and targeted policies for
farmers and livestock farmers so that they do not give up; the primary sector
is our added value.”
Mykonos
On islands where meeting the needs of
tourism is the only priority, empty reservoirs aggravate an already difficult
situation. Mykonos is a typical example. “The Municipal Water Supply and
Sewerage Company of Mykonos has two dams and two desalination plants to supply
water to the island,” explains the company’s chairman, Dimitris Lazaridis. “The
Marathi dam, with a capacity of 3 million cubic meters, and the Ano Mera dam,
with a capacity of 1 million cubic meters, are almost empty due to the
continuous drought, and they are not being used.”
Drought is not the only problem. The
Aegean islands have seen a surge in tourism in recent years, with a
corresponding increase in water consumption. A typical example of the gradual
increase in water consumption is the arid island of Santorini. According to
data from the Municipal Enterprise for Water Supply and Sewerage (DEYA) of
Thera, a decade ago (2013), water consumption on the island reached about
929,000 cubic meters. In 2023, it reached 2.36 million cubic meters of water
(an increase of 13.8% compared to the previous year).
The huge increase in consumption is
also reflected in the other “flagship” of the Cyclades, Mykonos.
According to data from the Mykonos
DEYA, the consumption of water in 2020 (year of quarantine) was 955,505 cubic
meters, in 2021 it increased to 1,174,254 cubic meters (+22.9%), in 2022 to
1,513,068 cubic meters (+28.8%), and reached 1,618,069 cubic meters in 2023
(+7%). In other words, if we consider that 2020 was not an ordinary year due to
Covid-19, water consumption on Mykonos will increase by 37.8% in two years
(from 2021 to 2023). “Moreover, the DEYA data does not reflect the whole
picture, as 40% of the island is not covered by the water supply network. The
total water consumption of the island is estimated at 2.5-3 million cubic
meters per year,” Nokas said. “Like many islands, Mykonos is a place where
people build where they want and then meet their needs either with private
boreholes – which are overpumped, resulting in poor quality water – or by
buying water. However, the increase in consumption also affects the areas that
have networks because they are not properly designed. On Mykonos, for example,
the network was originally built to serve only Hora, the island capital, and
now supports all the outlying areas without any specifications. The island’s
biological treatment plant, which was designed for a population equivalent of
50,000 and serves over 100,000 in the summer, has a similar problem. Everything
is operating at capacity.”
Challenges
The administrative structure – i.e.
the division of responsibilities for water – does not help the situation. Water
management on the Greek islands is governed by a complex and deficient system.
In the most organized cases, there is a municipal water and sewerage company
responsible for the network and water production. In the less organized cases,
the water is managed by an agency within the local municipality. The licensing
and control of private wells, either for water supply or irrigation, drilled outside
the network, is the responsibility of the water directorates of the
decentralized administrations, where one or two people are called upon to
manage everything. Finally, the regions have water management departments that
deal with inspections and complaints.
“When it comes to water consumption,
tourism has the last word,” says Nokas. Desalination is not enough. In
Ermoupoli, on the island of Syros, when the first plant was built, it had a
capacity of 1,200 cubic meters, and today it has reached 5,000 cubic meters,
and it is still not enough. Moreover, with the increase in energy costs, the
island’s DEYA, which a few years ago had a reserve of 1 million euros, is now 5
million euros in the red, which it cannot pass on to the water bills, since
water is already very expensive. According to the Ministry of the Environment
and Energy, there are currently 31 desalination plants in operation in the
Cyclades and another 15 in the Dodecanese.
Illegal drilling
The problems are not confined to the
Cyclades. On Skiathos, which is supplied exclusively by boreholes, the
underground water level is falling every year. “The peculiarity of Skiathos is
that we have water, the island is self-sufficient. The town of Skiathos is
supplied by five municipal wells, while hotels and private individuals on the
island have their own wells. In addition, since the water from the central well
is no longer potable, we have installed 25 public taps in the town with potable
water from another source,” says Ioannis Sarris, director of the Skiathos DEYA.
“The DEYA has no authority to license
or control the wells. It has no idea what quantities are being pumped. We have
done the best we can – in recent years we have replaced almost the entire
internal water supply network and significantly reduced losses. What worries us
is that every year the level of the water in the boreholes goes down, and the
reserves tend to go down. At the same time, actual consumption is increasing
due to tourism. A serious problem is illegal drilling – on Skiathos we have
more than 2,000 illegal boreholes. In my opinion, especially on islands where
the water comes from an enclosed area, the water should be controlled by the
community as a whole and not piecemeal.” According to the Department of
Hydroeconomics of the Regional Unit of Magnesia and the Sporades, 238
applications for private wells have been submitted for Skiathos, 11 for
Skopelos and five for Alonissos.
“Our island has the peculiarity of
being big and small at the same time,” notes Kalymnos Mayor Yannis
Mastrokoukos. “Although we are small in area, we have a permanent population of
17,000. This means that we have a significant demand for water throughout the
year. It’s not just about tourism, as our own attitude toward water has
changed: in terms of using it for cleaning, watering gardens, filling swimming
pools… things that were unthinkable two generations ago, when people had
learned to live with much less water.” The island is currently supplied mainly
by boreholes, and there is a desalination plant for the northern part of the
island which is popular with tourists.
He concludes: “The underground
reserves are running out and we are now forced to turn to desalination as well.
There is already a tender being prepared, funded by the Ministry of the
Interior, for the supply of three small desalination plants and another by the
Regional Authority of the South Aegean for a large plant for the town of
Kalymnos. Of course, desalination is not a panacea. Ideally, if we could expand
the use of renewables to meet the demand and make up for grid leakage, it would
be more viable as an option.”
Let’s see
what happens.
––Jeff