Footnotes

Some totals do not add up due to rounding.

The purpose of the data release is to present a broader overview of statistical data on water use in Slovenia. The data show the amount of abstracted water, supplied water and wastewater for Slovenia.

DEFINITIONS
Abstracted water from groundwater includes:
- pumping stations at aquifers with granular porosity, springs/wells, groundwater pumping stations of aquifers with fissure porosity, carst/fissure porosity or mixed porosity;
- springs of groundwater that do not include a surface water inflow (carst sources, sources at contacts of more permeable layers with less permeable or non-permeable layers, and springs with a gravitational water inflow);
- springs of groundwater with surface water inflow are springs of groundwater into which surface water flows.

Abstracted water from surface waters are running waters (rivers and streams), natural lakes, artificial lakes, rainwater and artificial recharge, etc.

Public water supply system is a system of structures under the unified supervision and unified management that provides water to the settlements from the central water resource.

The amount of water captured by the public water supply system is the amount of water which is available to the users.

The amount of water lost in the network is an indicator of water losses due to poorly maintained networks.

The amount of supplied but uncharged water is the amount of water that has been abstracted in the system, but not charged. Usually these are abstractions from fire hydrants needed for firefighting or street cleaning. The data can be estimated.

Waste (polluted) water is water which is after use or as atmospheric precipitation discharged into public sewage or waters. Wastewater is a mixture of domestic, industrial/process or drainage wastewater.

Untreated wastewater is waste water discharged into ambient media without treatment. Untreated waste water is released (directly or indirectly) into groundwater, watercourses, accumulations, lakes and sea without prior treatment in treatment plants.

Treated wastewater is waste water discharged from a treatment plant. Wastewater treatment includes mechanical, chemical or biological methods of treatment or its combinations which is dependent on the exact standards of treatment.

Runoff rainwater is water which as a result of atmospheric precipitation runs off as polluted water from hardened, paved or with other materials covered area into waters or drains off into public sewage (or into soil).

Linked content:
- Methodological explanations - VOD-K
- Methodological explanations - VOD-N
- Methodological explanations - VOD-UVI
- Methodological explanations - VOD-V

YEAR

Due to the change in one of the data sources, the data on wastewater for 2016 are not entirely comparable with those for the previous years.
In the Public Sewage System survey (VOD-K) the data source changed; it includes more reporting units than the previous data source. Also the differentiation of runoff rainwater from the rest of the wastewater is no longer possible. The runoff rainwater is partly included among treated and partly among untreated wastewater.