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Delivery – supply of drinking water

Operative zones of the water supply network

Zone 1 (Urban)	Zone 2 (Cantavir)	Zone 3 (Bajmok)
The City	Čantavir	Bajmok
Radanovac	Višnjevac	Mišićevo
Palić	Novi Žednik	Mala Bosna
Bački Vinogradi	Stari Žednik	Đurđin
Graničar
Kelebija

Water Supply Related Activities

Checking the operation of the water supply network
Scheduled and preventive maintenance
Interventional maintenance of the network and connections
Maintaining network water quality
Building new connections to the water supply network
Building new sections of the water supply network and regeneration of the existing ones
Checking the accuracy of water consumption measuring instruments - water meters

Maintenance of the water supply network

Within the scope of the scheduled and preventive maintenance the openness of valves and fire hydrants are checked, they are repaired and replaced if needed, and dilapidated network sections and connections are replaced.

Interventional maintenance covers the elimination of failures in the network due to subsidence, corrosion, mechanical damages and the like.

Efficiency and speed are fundamental in the maintenance of the water supply network in order to minimize stoppages in water supply to the least possible measure. Therefore, we organised an intervention team on duty all around the clock, who, from the moment the failure has been reported to the Dispatcher Service at phone no. 55 – 77 – 11, can get to the site within minutes and eliminate the breakdown at any time of the day during the whole year.

By the EPANET computer programme the pipeline’s hydraulic behaviour is simulated. The whole supply network is under permanent control; we continuously measure pressure on several network points, which is the precondition of supervision and elimination of breakdowns.

System water lossesare also monitored with the aim to minimize them. The most frequent causes of water loss are defective installations, dilapidated connection and water quantities used for the necessary flush of the supply pipeline thus providing that it meets sanitary requirements.

The Review of Built-In Pipelines Lengths and Diameters:

1. Subotica and Palić

Ser. no.	Diameter (Ø)	Length (m)
1	50	4622
2	63	152
3	80	73131
4	90	691
5	100	131354
6	110	25647
7	125	758
8	150	40914
9	160	933
10	200	18760
11	215	101
12	250	6540
13	300	5513
14	350	1082
15	400	1706
16	450	4130
17	1“	408
18	2"	7814
19	3"	670
20	5/4"	2079
21	6/4"	793
	TOTAL	327798

2. Suburban settlements (Bački Vinogradi, Kelebija, Mala Bosna, Đurđin, Mišićevo, Bajmok, Čantavir, Novi Žednik, Višnjevac, Stari Žednik)

Ser. no.	Diameter (Ø)	Length (m)
1	10	9.6
2	32	599.8
3	50	1179.4
4	60	11207
5	63	1749.2
6	75	1850
7	80	69596.85
8	90	225
9	100	45026.2
10	110	5445.42
11	125	10290.7
12	150	5580.08
13	160	1722
14	180	1410
15	200	3870.82
16	250	819
17	300	100
18	2"	6183
	TOTAL	166864.07

Review of the Number of Connections According to Consumer Groups

Ser.no.	Consumer Group	Number of Connections
1.	Households	30.051
2.	Councils of Residential Houses	~ 700
3.	Corporate consumers	~ 1.700
4.	Institutions	~ 200
	Total	32.651

Document Title	Download
Types and Methods of Water Meter Reading in Households

Special Equipment Used by the Water Supply Department

Correlator – a modern and effective equipment, which on the principles of acoustics and radio signals provides a diagnosis of the supply network’s condition, accurate detection of failures and reliable registering of all connections.