An environmental burden (environmentálna záťaž) is contamination of land caused by human activity that poses a serious risk to human health, rock, groundwater or soil. The state records such sites in a public register with parts for suspected, confirmed and remediated sites. Act 409/2011 decides who has to investigate, clean up and pay. Liability starts with the polluter, passes to its legal successor and reaches the landowner only after that.
What an environmental burden is under Slovak law
The legal definition sits in section 3(t) of the Geological Act 569/2007, in the text in force since 1 April 2025. It covers contamination of an area caused by human activity that poses a serious risk to human health or to rock, groundwater and soil. Environmental damage within the meaning of Act 359/2007 is excluded. Section 3(u) adds the probable burden: an area where such contamination is reasonably suspected.
The same section explains what a clean-up has to achieve. Under section 3(s), remediation means works in rock, groundwater and soil. They remove, reduce or limit contamination to an acceptable risk, judged against the present and future use of the area. The target therefore depends on what the land will be used for. A site cleaned for a logistics yard may not meet the standard for housing.
The notes to Annex 2 of Act 409/2011 name the typical sources. Among them are landfills and chemical stores that do not meet the rules, and industrial plants and sites. In practice the register reads like a map of former industry, military bases, fuel depots and municipal tips.
How the register sorts suspected, confirmed and remediated sites
The Ministry of Environment runs the information system of environmental burdens under section 20a of the Geological Act, and the Slovak Environment Agency operates it. Part A lists probable burdens, part B confirmed ones, part C remediated or reclaimed sites, and part D burdens removed from the registers. On 8 October 2026 at 17:30 the system showed 850 sites in part A, 318 in part B and 854 in part C. Because 110 sites sit in parts A and C and 129 in parts B and C, it counts 1,783 sites in total.
Anyone may report a suspected site under section 2(3) of Act 409/2011, in writing, electronically or orally for the record. Within 30 days of a complete report the ministry checks the facts, studies the documents and visits the site. If it confirms contamination it fills in a registration sheet, classifies the site and enters it in the system. Sites recorded before 2012 count as identified under section 19(2).
Classification follows Annex 3 of the Act. The State Programme for the Remediation of Environmental Burdens 2022 to 2027 explains the scoring: a site with up to 35 points has low priority, 35 to 65 points medium and more than 65 points high priority. The priority drives the deadlines for a work plan.
What a registration sheet tells a buyer or tenant
Every site has an identifier of the form SK/EZ/district code/number. It also has a registration sheet, whose content Annex 1 sets out. Part I holds the general data: the name, the holder of the burden, the history of ownership, the parcels and the activity that caused the contamination. Part II describes the natural setting: relief, geology, groundwater and protected areas. Part III records the classification. Part IV lists geological surveys, groundwater and surface water monitoring, risk analyses and any remediation works, and Part V the attached documents.
For due diligence the history of ownership and the activity are often the most useful lines, because they point to a possible polluter or successor. Under section 11(2)(h) the ministry also proposes a record in the land register, so the cadastral extract is a second place to look. Section 20a(2) of the Geological Act releases register data under the Freedom of Information Act 211/2000. Data on probable burdens are left out. For a suspected site the seller’s own records and a fresh survey therefore carry more weight.
Environmental burden, environmental damage and brownfield
The three terms overlap in conversation but not in law. Act 359/2007 on the prevention and remedy of environmental damage, in force since 1 September 2007, transposes the EU Environmental Liability Directive 2004/35/EC. It covers operators of listed activities, such as installations under an integrated permit and waste management. They answer for damage and for an imminent threat of damage, regardless of fault. An environmental burden is the older, wider category of contamination that Act 409/2011 handles instead. For a buyer that means two checks, not one: the register for old contamination, and the permits of any current operator for new damage.
A brownfield is a planning and market term. It describes land that was built on before and is now underused or empty. Whether anything lies in the ground is a separate question. Many brownfields are clean, and many registered sites are in use. The register answers only the contamination question, and a site reuse plan still needs zoning, access and utilities.
What it means for an owner or a tenant on site
Liability runs in a fixed order: first the polluter, then its legal successor if the polluter has ceased to exist. The owner of the land comes third, only where the polluter is unknown or no successor can be designated under section 4(3). Our post on the liability order explains who pays when the polluter is gone. Owners who never caused the contamination therefore have reasons to start the process themselves. Under section 5(1)(b) the owner, the user or the administrator of the property may ask the district office to designate the obliged person. A tenant can therefore trigger it as well.
Investigations reach occupied sites too. Under section 18 the authorities may enter land after at least ten days’ written notice. The owner and users must tolerate the work to the extent and for the time it needs. If normal use is restricted, they may claim a one-off reasonable compensation. The right lapses unless claimed within one year. A lease or a purchase contract can share these costs between the parties. In our reading it does not bind the district office, which designates the obliged person under the Act alone.
Frequently Asked Questions
Is every site in the register contaminated?
No. Part A holds suspected sites that have not been confirmed, and part C holds sites that were remediated or reclaimed. Only part B lists confirmed burdens. A site can appear in two parts at once, for example when one area is cleaned and another is not.
Can a site leave the register?
A finished clean-up moves it to part C. The district office closes the work plan with a decision under section 9(3) of Act 409/2011, which also sets conditions for monitoring and for the further use of the property. A site in part C can therefore still carry limits.
Who decides who pays for the clean-up?
The district office in the regional seat, in a procedure under section 5 of Act 409/2011. It designates the obliged person, the povinná osoba, and sets the deadline for the work plan. Where no one can be designated, the government names a ministry.
Does a listed site lose its value?
Not automatically. The price depends on the priority, the planned use and who carries the cost. A low-priority site that will host a logistics yard is a different case from a high-priority one meant for housing.
Looking at a former industrial site for a hall or a yard? Talk to us about the site and we will check its register status with you.