Water Supply on Hydra

About Hydra / Climate, Seasons, Geography

A new desalination plant opened officially on Hydra on Monday, August 25, giving the island access to water at almost a third the previous price; it should pave the way for similar plants in other parts of the country. This water is deemed safe to drink, although many locals still prefer to drink and cook with bottled water.

Water Boat

The Evgenia, the water boat that used to import low-quality, expensive water to Hydra

The plant on Hydra is able to process 1,600 cubic meters of water a day. It was built by the Greek firm TEMAK, which won a tender to build and run the unit for 12 years.

desalination plant hydra“Until now, Hydra used to get water delivered by ship—it was poor quality water but there was no choice,” outgoing Hydra mayor Angelos Kotronis told Kathimerini. “Water used to cost the municipality 3.19 euros per cubic meter, but now we will pay 1.19 euros and all we had to do was provide the land for the plant to be built.”

desalination plant hydraKotronis said there would be added savings for residents of the Saronic island as they would not have to buy bottled drinking water, and their washing machines would last longer because there would less limescale buildup.

The government hopes that the plant on Hydra will serve as a blueprint which could be followed by other islands.

“The most important aspect of this project is that the local authority and the government did not spend a single euro,” said Environment Minister Yiannis Maniatis. “A Greek company was responsible for designing the plant, getting the permits and constructing it after winning an international tender.”

Maniatis said he would be hosting a meeting at the ministry next week to discuss a strategy for creating similar desalination plants “on all the Aegean islands.”

“We have to overhaul the whole system,” the government’s general secretary for the Aegean, Nikos Zoidis, told Kathimerini. “Desalination is clearly cheaper than transporting water, the water is cleaner and there is no danger of an island being cut off – if there is bad weather for example.” … “We want private companies to install desalination units on all the islands within the next eight months,” he said, adding that the ministry would examine whether it could contribute financially to the projects or act as a guarantor.

From www.ekathimerini.com

NOTICE

“HIGH QUALITY AND DRINKING WATER NETWORK OF HYDRA”

 

Results of the chemical and microbiological laboratory analyzes performed on desalinated tap water in samples taken Tuesday, August 12. The analyses were performed by Analytical Laboratories Athens SA under contract by the Municipality of Hydra.

Parameter

Unit of measurement

Values – limits of LAW

Values for desalinated water Hydra

Values for bottled water

Coliforms

cfu / ml

0

0

0

Escherichia coli

cfu / ml

0

0

0

Intestinal Enterococci(Enterococcus)

cfu / ml

0

0

0

Hydrogen ions (pH)

pH unitis

6.5 to 9.5

8

7-8

Conductivity

mS / cm

2500

7 8 0

400-650

Total hardness (salts)

mg / L CaCO 3

85

200-300

Bicarbonate (HCO 3)

mg / L

220

190-330

Odor

Tasting

Acceptable

Flavor

Tasting

Acceptable

Calcium (Ca)

mg / L

31

25-100

Iron (Fe)

ug / L

200

36

<30

Magnesium (Mg)

mg / L

5

1.5 to 90

Manganese (Mn)

ug / L

50

1.5

<30

Potassium (K)

mg / L

12

3.3

0.5 to 4

Sodium (Na)

mg / L

200

78

2-25

Chloride (Cl)

mg / L

170

5-80

Fluoride (F)

mg / L

1.5

0.15

0.10 to 0.15

Nitrate (NO 3)

mg / L

50

3

5-15

Ammonium (NH 4)

mg / L

0.50

0.03

0.01 to 0.25

These laboratory results showed that the water from the Desalination Plant in Mandraki, which passes through the wells at Kala Pigadia and St. Constantine and ends in all our faucets fully meets rigorous standards set by European and Greek legislation with the Common Ministerial Decision on “Water Quality for Human Consumption” (Official Gazette 892 / B / 2001).

According to TEMAK, due to the high temperature of the sea water, August is the most difficult month for the quality of produced water. This means that the next time around, the quality of desalinated water will be continuously improved.

From www.ydra.gov.gr