Some terms used in this law have the following meaning:
1 ) an aquifer is the potpovrinski layer or layers of the rock mass or other geolokih mean of sufficient porosity and permeability to enable flow of a significant quantity of groundwater or the abstraction of significant quantities of groundwater;
2) torrential flow (hereinafter: torrential) is a temporary or permanent flow in which, due to intense atmospheric precipitation or rapid snow melting, there is a sudden change in water regime in the form of high flood waves and possible threats Life and health of people and their property, as well as ambient values;
3) a wet water body is a body of surface water, created by human activity;
4) water for swimming is water used for sports and recreational purposes, and is part of a water body of surface water or located in an open or indoor pool;
5) Drinking water is water used for drinking, processing and production of food and articles of general use, as well as other needs of people;
6) water for sanitary and hygienic purposes is water used for the maintenance of personal and general hygiene;
7) Water intended for human consumption is water that comes from the source and has the quality prescribed for raw water;
8) water are all liquid and standing water on the surface of the earth and all groundwater;
9) Water Balance is a quantitative and qualitative relationship between the available and necessary quantities of surface and groundwater in a given space and in a certain time;
10) The water regime is natural and / or human activities caused by the quantitative and / or qualitative state of underground and surface waters in a given space and at a certain time;
11) Water resources are all surface and groundwater, by quantity and quality;
12) Water system consists of all waters, aquatic lands and water objects in a certain area;
13) A water area is an area that consists of one or more adjacent river basins and sub-basins or their parts in the territory of the Republic of Serbia, together with the associated groundwater, which is designated as a basic unit for water management;
14) a water body of surface water is a special and significant element of surface water such as a lake, reservoir, stream, river or channel or part of a stream, river or channel;
15) A groundwater body is a specific volume of groundwater within one or more aquifer layers;
16) water is a stream of running water along with shores and water flowing it continuously or occasionally and can be natural (river, torrent, brook) and westerly (channel, average, divided trough);
17) the main collector is the waste water collector , or more settlements, by which the collected water is discharged to the wastewater treatment plant;
18) emission limit values include mass expressed by specific specific parameters, concentration and / or emission levels which can not be exceeded over one or more periods of time;
19) direct discharge into the groundwater is the discharge of the pollutant into the groundwater without leakage through the surface and underground layers of the soil;
20) good ecological potential is the status of a significantly altered or ethereal water body, classified in accordance with a special regulation;
21) Good ecological status is the status of a water body of a surface water, classified in accordance with a special regulation;
22) Good quantitative status is the status of a groundwater body as defined by a special regulation;
23) good surface water status is the status of a water body of surface water when its ecological status and its chemical status is at least in accordance with a special regulation;
24) Good groundwater status is the status of a groundwater body of a groundwater when its quantitative and chemical status is at least good, in accordance with a special regulation;
25) Good chemical status of surface water is a chemical status that must be in compliance with the prescribed environmental objectives for surface water, that is, the chemical status of the water body of surface water such that the concentration of pollutants does not exceed the quality standards Environment, in accordance with a special regulation;
26) good chemical status of groundwater is the chemical status of a groundwater body that meets all prescribed conditions;
27) The ecological status includes the quality of the structure and functioning of the aquatic ecosystem associated with surface water, classified in accordance with a special regulation;
28) The erosion area is the area in which, due to the action of water, the occurrence of runoff, stagnation, climbing, undermining and clinging, the land that can become subject to these effects due to changes in the way of use (Cutting wood, degradation of meadows, construction of buildings on unstable slopes, etc.), as well as the land of mining and industrial wastes;
29) pollution is a direct or indirect intrusion, as a result of human activity, substance or heat in the air, water or soil, which can be harmful to human health or the quality of aquatic ecosystems or sub-ecosystems directly dependent on Aquatic ecosystems (coastal ecosystems), which causes damage to material goods or diminishes or impedes conventional and other legitimate uses of the environment;
30) polluting substance is any substance that causes pollution, whose list is determined by a special regulation;
31) Significantly modified water body is the body of surface water which, as a result of physical changes due to human activity, has been substantially altered in its characteristics and classified according to a special regulation;
32 ) sources are the area (source, part of the river or lake, accumulation or part thereof and aquifer or its part), which is used for water for various users;
33) The inundation area is the land belt between the small water tank and the flood (flood) trough line for centuries of large water in an area on which no facilities have been constructed for protection against the harmful effects of water (unregulated inundation area ), That is, the area between the small water tank and the inner (defended) bunk of the building constructed for flood protection (arranged inundation area);
34) Public sewage is a set of technical and sanitary facilities and measures, which ensure the continuous and systematic collection, discharge, conversion and discharge of waste and atmospheric waters of settlements and economy into appropriate receivers-recipients;
35) Public water supply is a set of interconnected technical and sanitary facilities and equipment designed to provide drinking water to the population and economy of settlements that meets the requirements for health safety;
36) The lake is the body of standing surface water;
37) The quantitative status includes the level at which the body of groundwater is affected by direct or indirect incursions;
38) ground water are all standing or running water on the surface of the earth and all groundwater;
39) a trough for large water is a trough and a space that floods a large reversible water once in 100 years;
40 ) a trough for small water (hereinafter: a trough) is a recess through which the small and medium waters of the watercourse flow, ie a recess which is constantly covered by the waters of natural lakes and other surface waters;
41) the minimum sustainable flow is the flow that must be provided downstream from the water intake in the watercourse for the survival and development of downstream biocenoses and satisfying the needs of downstream users;
42) coast is a belt of land (widths up to 10 m), located directly next to a stream of watercourses, lakes, reservoirs and other surface waters;
43) Surface water are liquid and standing water on the surface of the earth, except for groundwater;
44) groundwater are all waters that are beneath the surface of the earth in the saturation zone and in contact with the surface of the earth or subfloor;
45) p floating outer waters are floods caused by spillage of water from the watercourse;
46) floods inland waters are floods from sugary atmospheric and groundwater;
47) The flood area is the area that the water occasionally floats, due to the outflow of watercourses or heavy inland waters;
48) Priority substances are substances separated from those that pose a significant risk to the aquatic environment or to others through it, whose list is determined by a special regulation. These substances also include γ-priority hazardous substances identified as selected priority substances and which cause an increased risk to human health or the environment, and the list and measures to be applied in relation thereto are determined by a special regulation;
49) The available groundwater resources are the medium-term total annual water supply of the groundwater body, minus the average annual flow required for the achievement of the environmental quality objectives for the associated surface waters , In order to avoid any significant deterioration in the ecological status of such waters and to avoid any significant damage to the relevant sub-ecosystems;
50) River is the body of groundwater that mostly flows along the surface of the earth, but it can flow underground in one part of its stream;
51) The groundwater resource is one or more aquifers interconnected in a unique hydrogeological and hydrodynamic whole;
52) in receptacles (receiver) are considered to be natural and vetački streams, lakes, reservoirs, and the earth, in which the drained waste and storm water;
53) River layers are permanent or temporary deposits of rivers and torrents (sand, pebbles and the like) found in aquatic soil;
54) River Basin is an area from which all of the surface islands are confluence with a network of streams, rivers, and possibly a lake, according to the mouth, estuary or delta of the river into the sea;
55) a sub-basin is the area from which the whole network coverage surfactant runoff basin stream, river, lake and possibly, according to the particular point of water streams;
56) standing water are natural lakes, fishponds, ponds, wetlands and other water collectors, which have permanent or temporary inflow or flow of liquid or groundwater;
57) The status of surface water is a general term about the status of a water body of surface water, and it determines it separately from its ecological status and its chemical status;
58) groundwater status is a general term about the status of a groundwater body, and determines it less than its quantitative status and its chemical status;
59) liquid water are natural watercourses with continuous or occasional currents, as well as watercourses;
60) Hazardous substances are substances or groups of substances that are toxic, persistent and susceptible to bioaccumulation and other substances or groups of substances that give rise to an appropriate level of concern, the list of which is determined by a special regulation;
61) Environmental objectives include the prevention of deterioration, protection and improvement of all water bodies of surface waters and the protection, improvement and renewal of all bodies of groundwater, and in order to achieve good status of surface and underground Water and protected areas;
62) 1 EC (one equivalent inhabitant) is an organically biodegradable load that has a five-day biochemical oxygen consumption of 60 g of oxygen per day.