THE IMPORTANCE OF THE THE IMPORTANCE OF THE WATER TANK BUKOVEC TO WATER TANK BUKOVEC TO

SUPPLY THE POPULATION OF SUPPLY THE POPULATION OF REGION KOŠICE WITH REGION KOŠICE WITH

DRINKING WATERDRINKING WATER

Ing. Jana HargašováKrajský úrad životného prostredia

Košice

22

Characteristics of water tank (VN)

• district: Košice - okolie

• cadastral territory: Hýľov

• built in: 1968 - 1976

• location: in the watercourse Ida (tributary of Bodva), river kilometer (rkm) 37.60

• operator of the tank: Slovenský vodohospodársky podnik, š.p., OZ Košice

33

Catchment area

under § 11 of Law No. 364/2004 Coll Water Act as amended, VN Bukovec belongs to:

• international river basins: the Danube (redeem the Black Sea)

• river basin district: the Danube

• sub-basin: Bodva

44

parameters of the dam: height: 56.00 m

length: 333.00 m

crown width: 6.00 m

55

Hydrological dataHydrological data

a) THE TANK:

• max. operational level: 416.75 m a.s.l.

• min. operational level: 380.00 m a.s.l.

• total: 23.40 mil. m3

• flooded area: 105.00 ha

• max. water depth: 48.2 m

66

b) CATCHMENT AREA:

total distance of catchment area: 55.36 kmtotal distance of catchment area: 55.36 km22, ,

of which: of which:

distance of river-basin Ida: 47.20 kmdistance of river-basin Ida: 47.20 km22 distance of river-basin Myslavský potok: distance of river-basin Myslavský potok:

8.16 km8.16 km22

77

Aim of water work

1. to provide drinking water for the city Košice by compensating the varying yield of groundwater resources - karst springs - near the Turňa nad Bodvou and Drienovec

2. reduce the activity of flood

88

Composition of water work

• water tank - which are in addition to its own drainage basin and transferred from the neighboring river basin Myslavský potok

• stony gravel dam with associated functional objects, in which are platen taking for taking raw water to treatment plant under the dam

99

Dam – cross-section• 1 stony gravel dam • 2 clay watertight core • 3 two-ply filter • 4 pit wasteway • 5 associated functional object

• 6 sink• 7 communication tunnel • 8 grouting tunnel• 9 subsoil - granite grey

1010

Associated functional object

1111

Associated functional object - vertical section

1212

Zone of sanitary protection

VN Bukovec (PHO) Determination of buffer zones of water Determination of buffer zones of water

sources, which are also zones of sanitary sources, which are also zones of sanitary protection results from the following protection results from the following legislation: legislation:

• § 32 of Low Nr. 364/2004 Coll Water Act as § 32 of Low Nr. 364/2004 Coll Water Act as amendedamended

• Decree of Slovak Ministry of environment No. Decree of Slovak Ministry of environment No. 29/2005 Code, which provides details on 29/2005 Code, which provides details on determining the protective zones of water determining the protective zones of water resources on measures to protect water and resources on measures to protect water and the technical adjustments in the protection the technical adjustments in the protection zones of water resources zones of water resources

1313

• PHO I. level in river basin Ida • PHO II. level internal in river basin Ida• PHO II. level external in river basin Ida• PHO III. level in river basin Ida• PHO I. level of transfer water into the VN Bukovec • PHO II. level of internal transfer Myslavský potok • PHO II. level of external transfer Myslavský potok • PHO III. level of transfer Myslavský potok – doesn´t build

up

VN Bukovec has with this act defined I., II., and III. level of zone

sanitary protection:

1414

Borders of sanitary protection zones

1515

There are 4 villages in the service area PHO:There are 4 villages in the service area PHO:

• Hýľov (PHO II. level internal) Hýľov (PHO II. level internal)

• Zlatá Idka (PHO III. level) Zlatá Idka (PHO III. level)

• Rudník (PHO III. level) Rudník (PHO III. level)

• Vyšný Klatov (PHO II. level internal) Vyšný Klatov (PHO II. level internal)

1616

The most important restrictions and prohibitions

PHO I. level:

• ban of entry without special authorization

• prohibition of fertilizing with pesticides

• mountain grass with manual mowing

• prohibition of hunting and feeding animals

• prohibition of recreation, water sports, swimming and sailing with motor vessels

1717

The most important restrictions and prohibitions

PHO II. level (internal, external): • prohibition fertilizing with pesticides • prohibition of the establishment of midden• prohibition of building parking ramps and car

washing• prohibition of building landfill• prohibition of free passage through the waterways• prohibition of all recreational activities• prohibition of building fuel stations and oil storage

1818

The most important restrictions and prohibitions

PHO III. level:• prohibition of the use of chemical sanding• prohibition of building or expansion of ski

slopes and terrains• prohibition of free passage through the

waterways• exceptionally can be allowed storage of

pesticides• prohibition of building fuel stations and oil

storage

1919

Current and prospective targets utilization water from water

source

• Catchment area VN Bukovec is characterized by a high degree of forest cover, which is very favourable factor on the creation, circulation and sustainment of water.

• Water tank Bukovec is the most important water source from which is taking water for water supply Drienovec - Košice. This water supply is one of the largest water systems in the eastern Slovakia region.

• With a capacity of VN Bukovec is also considered prospective for municipalities in the district of Košice-okolie and the city Košice.

Thank you for your Thank you for your attention.attention.

Ing. Jana HargašováIng. Jana Hargašováhargasova.janahargasova.jana@@ke.kuzke.kuz

p.skp.sk