Definitions for contaminated land - EPA 1990 s. 78A
Defines key terms for Part IIA EPA 1990: contaminated land, special site, harm, remediation. Local authorities use Secretary of State guidance.
The following provisions have effect for the interpretation of this Part. “ Contaminated land ” is any land which appears to the local authority in whose area it is situated to be in such a condition, by reason of substances in, on or under the land, that— significant harm is being caused or there is a significant possibility of such harm being caused; or significant pollution of controlled waters is being caused or there is a significant possibility of such pollution being caused; and, in determining whether any land appears to be such land, a local authority shall, subject to subsection (5) below, act in accordance with guidance issued by the Secretary of State in accordance with section 78YA below with respect to the manner in which that determination is to be made. A “ special site ” is any contaminated land— which has been designated as such a site by virtue of section 78C(7) or 78D(6) below; and whose designation as such has not been terminated by the appropriate Agency under section 78Q(4) below. “ Harm ” means harm to the health of living organisms or other interference with the ecological systems of which they form part and, in the case of man, includes harm to his property. The questions— what harm or pollution of controlled waters is to be regarded as “ significant ”, whether the possibility of significant harm or of significant pollution of controlled waters being caused is “significant”, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . shall be determined in accordance with guidance issued for the purpose by the Secretary of State in accordance with section 78YA below. Without prejudice to the guidance that may be issued under subsection (5) above, guidance under paragraph (a) of that subsection may make provision for different degrees of importance to be assigned to, or for the disregard of,— different descriptions of living organisms or ecological systems , or of poisonous, noxious or polluting matter or solid waste matter ; different descriptions of places or controlled waters, or different degrees of pollution ; or different descriptions of harm to health or property, or other interference; and guidance under paragraph (b) of that subsection may make provision for different degrees of possibility to be regarded as “ significant ” (or as not being “ significant ”) in relation to different descriptions of significant harm or of significant pollution . “ Remediation ” means— the doing of anything for the purpose of assessing the condition of— the contaminated land in question; any controlled waters affected by that land; or any land adjoining or adjacent to that land; the doing of any works, the carrying out of any operations or the taking of any steps in relation to any such land or waters for the purpose— of preventing or minimising, or remedying or mitigating the effects of, any significant harm, or any significant pollution of controlled waters, by reason of which the contaminated land is such land; or of restoring the land or waters to their former state; or the making of subsequent inspections from time to time for the purpose of keeping under review the condition of the land or waters; and cognate expressions shall be construed accordingly. Controlled waters are “ affected by ” contaminated land if (and only if) it appears to the enforcing authority that the contaminated land in question is, for the purposes of subsection (2) above, in such a condition, by reason of substances in, on or under the land, that significant pollution of those waters is being caused or there is a significant possibility of such pollution being caused . The following expressions have the meaning respectively assigned to them— “ the appropriate Agency ” means— in relation to England ..., the Environment Agency; in relation to Scotland, the Scottish Environment Protection Agency; in relation to Wales, the Natural Resources Body for Wales; “ appropriate person ” means any person who is an appropriate person, determined in accordance with section 78F below, to bear responsibility for any thing which is to be done by way of remediation in any particular case; “ charging notice ” has the meaning given by section 78P(3)(b) below; “ controlled waters ”— in relation to England and Wales, has the same meaning as in Part III of the Water Resources Act 1991 except that “ ground waters ” does not include waters contained in underground strata but above the saturation zone ; and in relation to Scotland, has the same meaning as in section 30A of the Control of Pollution Act 1974; “ creditor ” has the same meaning as in the Conveyancing and Feudal Reform (Scotland) Act 1970; “ enforcing authority ” means— in relation to a special site, the appropriate Agency; in relation to contaminated land other than a special site, the local authority in whose area the land is situated; “ heritable security ” has the same meaning as in the Conveyancing and Feudal Reform (Scotland) Act 1970; “ local authority ” in relation to England and Wales means— any unitary authority; any district council, so far as it is not a unitary authority; the Common Council of the City of London and, as respects the Temples, the Sub-Treasurer of the Inner Temple and the Under-Treasurer of the Middle Temple respectively; and in relation to Scotland means a council for an area constituted under section 2 of the Local Government etc. (Scotland) Act 1994; “ notice ” means notice in writing; “ notification ” means notification in writing; “ owner ”, in relation to any land in England and Wales, means a person (other than a mortgagee not in possession) who, whether in his own right or as trustee for any other person, is entitled to receive the rack rent of the land, or, where the land is not let at a rack rent, would be so entitled if it were so let; “ owner ”, in relation to any land in Scotland, means a person (other than a creditor in a heritable security not in possession of the security subjects) for the time being entitled to receive or who would, if the land were let, be entitled to receive, the rents of the land in connection with which the word is used and includes a trustee, factor, guardian or curator and in the case of public or municipal land includes the persons to whom the management of the land is entrusted; “ pollution of controlled waters ” means the entry into controlled waters of any poisonous, noxious or polluting matter or any solid waste matter; “ prescribed ” means prescribed by regulations; “ regulations ” means regulations made by the Secretary of State; “ remediation declaration ” has the meaning given by section 78H(6) below; “ remediation notice ” has the meaning given by section 78E(1) below; “ remediation statement ” has the meaning given by section 78H(7) below; “ required to be designated as a special site ” shall be construed in accordance with section 78C(8) below; “ substance ” means any natural or artificial substance, whether in solid or liquid form or in the form of a gas or vapour; “ unitary authority ” means— the council of a county, so far as it is the council of an area for which there are no district councils; the council of any district comprised in an area for which there is no county council; the council of a London borough; the council of a county borough in Wales.
Text in force at .
Source: legislation.gov.uk — The National Archives (legislation.gov.uk), reproduced under licence Open Government Licence v3.0.
What it actually says
This section sets out the meanings of the main terms used in Part IIA of the Environmental Protection Act 1990. It defines "contaminated land" as land where substances are causing or could cause significant harm or significant pollution of controlled waters. The local authority must decide whether land meets that definition by following guidance from the Secretary of State.
Other key definitions include "special site" (contaminated land formally designated for national agency oversight), "harm" (damage to health or ecosystems), and "remediation" (assessment, cleanup, and monitoring). The section also defines who the enforcing authority is – the Environment Agency for special sites, the local authority for other contaminated land – and gives meanings for dozens of other terms like "appropriate person", "owner", and "controlled waters".
When it applies
- A council inspects a former petrol station where fuel has leaked into the soil and decides whether it is contaminated land under this definition.
- A landowner challenges a council’s determination that their property is contaminated because old waste buried on site is polluting nearby groundwater.
- The Environment Agency designates a heavily polluted industrial site as a special site, triggering national-level remediation oversight.
- A homeowner discovers that adjacent land is being tested for contamination and wants to know what 'harm' means for their own property.
- A developer buying a brownfield site checks whether the local authority has already classified it as contaminated land under this section.
What this section does not say
- It does not prescribe the specific clean-up steps or standards for remediation – those are dealt with in sections 78E to 78N.
- It does not determine who pays for remediation – that is set out in section 78F (the 'appropriate person').
- It does not list numerical contamination thresholds – those come from the Secretary of State's guidance, not the statute itself.
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This page reproduces the text of EPA 1990 s. 78A in force at the date shown and explains it in general terms. It is not legal advice and takes no account of the circumstances of your case, which can change the answer completely. For a live dispute, for limitation periods, and before taking any step in court, consult a qualified lawyer in England and Wales.