Infrastructure

Water
The river East Jiu on the route crossing Petrila is regulated and dyked on both shores. Because of the flood period in the years 1998-1999, there are presently under development a series of dyking activities on the East Jiu and its main affluents (Taia and Jiet, meeting each other on the town's territory).

The potable water is taken from the following sources:
The reservoir on Taia creek. The reservoir is 2 x 1500 sm, and takes its water from surface sources.
The reservoir on Jiet. The reservoir is 2 x 500 sm, and takes its water from surface sources.
The reservoir in Lunca Jietii Noi. The reservoir is 2 x 500 sm, and it takes its water from underground sources. ( wells)

The distribution Network
· In Petrila the distribution Network is supplied from the reservoir of 2x1500 mc (Taia) and by the reservoir of 2x500 mc from the cemetery area
the conducting pipes (with diameters Dn 200, 250, 300 mm) supply the existing reservoirs: 1x1500 mc Lonea (through the pipe Dn 250), the reservoirs 2x1500 mc Petrila (through the pipe Dn 300) and the reservoirs 2 x 500 mc Petrila from the cemetery area.

Between the years 1999-2000 it has been worked on the rentability of the water distribution network from Petrila, R.A.A.V.J. having a credit from the World Bank for the modernizing and development of the water supplying system.

The Sewer System
Din cele 5 localitati componente, doar orasul Petrila dispune de retele de canalizare (localitatile apartinatoare Jiet, Tirici, Rascoala nu dispun de retele de canalizare menajera).
In oras exista retele de canalizare menajera care sunt racordate la colectorul menajer principal Dn 500 mm al Vaii Jiului, paralel cu Jiul de Est, care descarca apele la statia de epurare Denutoni Petrosani. "

Out of the five towns that compose the administrative domain of the Petrila municipality, Petrila is the only one with a sewer system.The sewer network flows into the main pipeline that has a diameter of 500 mm. The water is than taken to Denutoni Petrosani depuration center, and than it flows in the East Jiu. Rain water collected and transported through the network are being dumped in the Jiu. The existing canals have diameters D 250 and 300 mm, the collectors D 300 mm.

Dumping rain water into the East Jiu is being done near the bridge at the entrance in E.M.Petrila.

There are also some difficulties about seweragem, like:
· the overdued capacity of the epuration station
· the networks are under-dimenssioned, (colmatate) and highly worn-out

Electric Energy
The FERO Petrila station insures the city's necessary electric energy. The station (110/20/6 KV) is in the Southwest of the town, on the left shore of the East Jiu and is linked to the national energetic system (SEN) by LEA 110 KV.
Electrical energy distribution in the town is assured through the transformation posts supplied radial or curled on average tension through underground or air electrical lines covering for the moment the necessary electrical energy.

Energy consumers are divised into:
· industrial consumers, supplied through thei own transformation posts;
· tertiar consumers, supplied through the low tension network (radial connection);
· individual household or in living blocks and un-industrial consumers supplied from the low tension network.

The most important energy consumers are the mining enterprises (EM Lonea, EM Petrila and the Petrila Preparation).
Public lighting is done with incandescent lighting bulbs mounted on posts (made of armed concrete).

The villages that are part of the city are connected to the same power lines with the rest of the city. The high and average tension lines have their routes on hay fields and approach living areas and buildings at the distances allowed by the law.

Natural Gas
Natural gas supplying is in course of execution, its route being on the drawing board for technical-town networks, according to the project elaborated by S.R.L. Deva.

Surface

Total surface is of 30.868 ha
Agriculture surface is of 11.266 (36,4% of the total surface)
Of which:
- Arable: 128 ha (0,4%)
- Pasture: 5.872 ha (19%)
- Hay fields: 5.228 ha (16,95%)
- Orchards: 18 ha (0,1%)
- Forrests: 18.883 ha (61,2%)
- Other uses: 739 ha (2,4%)

Source: DEEP