Legalize / Ireland / Statutory Instrument

S.I. No. 99/2023 - European Union (Drinking Water) Regulations 2023

Type Statutory Instrument

Publication 2023-03-10

Last updated 2026-01-02

State In force superseded text

Text As published

Source Irish Statute Book

articles 35

This is the act as published. Later amendments are not folded into the text below: each one is a separate act in this repository and an entry in this law's history.

2 amending acts · 2026-01-02, S.I. No. 673/2025 - European Union (Drinking Water) (Amendment) Regulations 2025

Reform history JSON API

(5) Where, despite the measures taken to meet the obligations imposed in Regulation 4(1), water intended for human consumption does not meet the parametric values set out in Schedule 1, or set in accordance with Regulation 6, and without prejudice to Regulation 8(1), the water supplier concerned shall ensure that the necessary remedial action is taken as soon as possible to restore the quality of that water and shall give priority to its obligations to comply with Regulation 4, having regard to, amongst other things, the extent to which the relevant parametric value has been exceeded and the associated potential danger to human health.

(6) A supervisory authority may amend an action programme submitted to it under paragraph (3)(c) before approving it, and the action programme thus amended and approved shall be regarded as the action programme for the purposes of these Regulations.

(7) An action programme under this Regulation shall include such interim measures as may be appropriate, and shall have regard to the provisions of any water services strategic plan made by Uisce Éireann or the relevant local authority.

(8) The EPA may issue guidelines in relation to the nature and timing of remedial, enforcement or other relevant action under this Regulation in specified circumstances, depending on the extent and likely consequences of a non-compliance with parametric values set out in Schedule 1, and local authorities shall take such guidelines fully into account when fulfilling their obligations under paragraph (3).

(9) Where remedial action is taken in relation to a water supply, the water supplier shall ensure that consumers are informed of such action, save where the supervisory authority considers the non-compliance with the parametric value to be trivial in nature or extent.

(10) For the purposes of paragraph (1), each water supplier shall maintain a record of any incidence of failure to meet the parametric values set out in Schedule 1, and such record shall include details of—

(a) the date of the incident,

(b) the extent and duration of the failure,

(d) details of any complaint received arising from such failure.

(11) In the cases described in paragraphs (5) and (13), where the non-compliance with the parametric values is considered to be a potential danger to human health, the water supplier concerned, in consultation with the relevant local authority and the HSE, shall as soon as possible take the following measures:

(a) notify all affected consumers of the potential danger to human health and its cause, of the exceedance of a parametric value and of the remedial actions taken, including prohibition or restriction of use or other action;

(b) give, and regularly update, the necessary advice to consumers on conditions of consumption and use of the water, taking particular account of population groups with increased water-related health risks;

(c) inform consumers once it has been established that there is no longer a potential danger to human health and inform them that the service has returned to normal.

(12) Records referred to in paragraph (10) shall be made available by a water supplier to a supervisory authority on written request from the authority concerned.

(13) Regardless of whether any failure to comply with the parametric values set out in Schedule 1, or set in accordance with Regulation 6, has occurred, the water supplier or supervisory authority concerned shall ensure that any supply of water intended for human consumption which constitutes a potential danger to human health is prohibited or the use of such water restricted and that any other remedial action that is necessary to protect human health is taken.

(14) A water supplier that fails to—

(a) notify the relevant supervisory authority in accordance with paragraph (2),

(b) comply with a direction issued under paragraph (3)(a) or (c),

(d) maintain a record for the purposes of paragraph (10), or

(e) make a record available to a supervisory authority on request under paragraph (12),

commits an offence.

Derogations

18.

(1) In duly justified circumstances, a departure from the parametric values set out in Table B in Schedule 1, or set in accordance with Regulation 6, up to a maximum value for each such departure to be determined by the EPA, may on application by Uisce Éireann in respect of a public water supply, or by the relevant local authority in respect of a private water supply, subject to the agreement of the HSE, be granted by the EPA in relation to a water supply, provided no such departure constitutes a potential danger to human health and that the supply of water intended for human consumption in the area concerned cannot otherwise be maintained by any other reasonable means; such derogations shall be limited to the following:

(a) a new catchment area for the abstraction of water intended for human consumption;

(b) a new source of pollution detected at the catchment area for the abstraction of water intended for human consumption or parameters newly searched for or detected;

(c) an unforeseen and exceptional situation in an existing catchment area for the abstraction of water intended for human consumption that could lead to temporary limited exceedances of the parametric values.

(2) An application for a departure under paragraph (1) shall contain such information as may be specified by the EPA.

(3) A departure granted under paragraph (1) shall—

(a) be subject to such conditions as may be specified by the EPA,

(b) have effect for as short a period of time as possible, which shall not exceed 3 years,

(d) be reviewed by the EPA prior to the end of the period of the departure so as to determine whether sufficient progress has been made in the opinion of the EPA.

(4)
(a) Subject to subparagraph (b), the requirement to specify the information in paragraph (6) shall not apply in any case where the EPA considers that—

(i) the non-compliance with the parametric value is trivial, and

(ii) the action taken in accordance with Regulation 17(5) is sufficient to remedy the problem within 30 days, and in such a case, a departure granted under this Regulation need specify only the maximum permissible value for the parameter and the time allowed to remedy the problem.

(b) Subparagraph (a) shall not apply in the case of a water supply where failure to comply with any one parametric value in relation to that supply has occurred on more than 30 days on aggregate during the previous 12 months.

(5) In exceptional circumstances, the EPA may grant a second departure in respect of subparagraphs (a) or (b) of paragraph (1), which shall not exceed 3 years, up to a maximum value to be determined by the EPA and subject to the agreement of the HSE, and where it does so—

(a) the EPA shall forward the related review to the Minister, and notify him or her of the departure and the reasons for granting it;

(b) the Minister shall forward the related review and details of the reasons for granting the second departure to the European Commission.

(6) Any derogation granted in accordance with paragraph (1) or (5) shall specify the following:

(a) the grounds for the derogation;

(b) the parameter concerned, previous relevant monitoring results, and the maximum permissible parametric value under the derogation;

(d) an appropriate monitoring scheme, with an increased monitoring frequency where necessary;

(e) a summary of the plan for the necessary remedial action, including a timetable for the work and an estimate of the cost and provisions for reviewing;

(f) the duration of the derogation.

(7) Subject to paragraph (8), where a departure is granted under this Regulation, other than a departure to which paragraph (4) applies, the water supplier concerned shall ensure that—

(a) the population affected by such departure is informed promptly in an appropriate manner of the departure and of the conditions governing it,

(b) advice is given, where necessary, to particular population groups for which the departure could present a special risk, and

(c) informed of any action that can be taken to protect human health from the adverse effects resulting from any contamination of water intended for human consumption.

(8) The obligations referred to in paragraph (7) shall not apply to the circumstances mentioned in paragraph (4) other than where the supervisory authority concerned decides otherwise.

PART 5 MINIMUM REQUIREMENTS

Minimum hygiene requirements for materials that come into contact with water intended for human consumption

19.

(1) For the purposes of Regulation 4, a water supplier shall ensure that materials that are intended to be used in their new installations or, in the case of repair works or reconstruction, in existing installations for the abstraction, treatment, storage or distribution of water intended for human consumption and that come into contact with such water do not—

(a) directly or indirectly compromise the protection of human health as provided by these Regulations,

(b) adversely affect the colour, odour or taste of the water,

(d) leach contaminants into the water at levels that are higher than necessary in view of the intended purpose of the material.

(2)
(a) Products that meet the specific minimum hygiene requirements, adopted by the European Commission under paragraph (2) of Article 11 of the Directive, satisfy the requirements set out in paragraph (1).

(b) Products in contact with water intended for human consumption that use final materials approved in accordance with these Regulations can be placed on the market for the purposes of these Regulations.

(3) Regulation (EU) 2019/1020 of the European Parliament and of the Council of 20 June 2019⁶ shall apply to products covered by this Regulation.

Minimum requirement for treatment chemicals and filter media that come into contact with water intended for human consumption

20.

(1) For the purposes of Regulation 4, a water supplier shall ensure that treatment chemicals and filter media that come into contact with water intended for human consumption do not—

(a) directly or indirectly compromise the protection of human health as provided for by these Regulations,

(b) adversely affect the colour, odour or taste of the water,

(d) contaminate the water at levels that are higher than necessary in view of the intended purpose.

(2) For the purposes of this Regulation, Article 4(2) of the Directive shall apply accordingly.

(3) Pursuant to paragraph (1), and without prejudice to Regulation (EU) No 528/2012 of the European Parliament and of the Council of 22 May 2012⁷ and by using relevant European standards for specific treatment chemicals or filter media, a water supplier shall ensure that the purity of treatment chemicals and filter media is assessed and the quality of such chemicals and filter media is guaranteed.

Access to water intended for human consumption

21.

(1) A water supplier, without prejudice to the principles of subsidiarity and proportionality, whilst taking into account the local, regional and cultural perspectives and circumstances for water distribution, shall take the necessary measures to improve or maintain access to water intended for human consumption for all its customers, in particular for those in vulnerable or marginalised groups.

(2) For the purposes of paragraph (1), Uisce Éireann, having consulted with the public, the CRU, local authorities and each Minister of the Government concerned, shall—

(a) identify people without access, or with limited access, to water intended for human consumption, including vulnerable and marginalised groups, and reasons for such lack of access,

(b) assess possibilities for improving access for such people,

(c) inform such people about possibilities for connecting to the distribution network or about alternative means of having access to water intended for human consumption, and

(d) take measures that they consider necessary and appropriate to ensure that there is access to water intended for human consumption for vulnerable and marginalised groups.

(3) In order to promote the use of tap water intended for human consumption, water suppliers, in conjunction with local authorities and appropriate public bodies, shall ensure that outdoor and indoor equipment is set up in public spaces, where technically feasible, in a manner that is proportionate to the need for such measures and taking into account specific local conditions, such as climate and geography.

(4) Water suppliers, local authorities and appropriate public bodies may also take the following measures to promote the use of tap water intended for human consumption:

(a) raising awareness of the nearest outdoor or indoor equipment;

(b) launching campaigns to inform citizens about the quality of such water;

(d) encouraging the provision of such water, for free or for low service fee, for customers in restaurants, canteens and catering services.

PART 6 AUTHORISED OFFICERS

Authorised officers

22.

(1) A supervisory authority, may appoint in writing such and so many persons, including members of the staff of the supervisory authority concerned, to be authorised officers for the purpose of obtaining, or verifying, any information which may be required in relation to a matter mentioned in these Regulations, and such appointment may be specified to be for a fixed period.

(2) Every authorised officer appointed under this Regulation shall be furnished with a warrant of appointment, which shall be issued by the appointing supervisory authority, and shall, when exercising any power conferred on him or her by any of the relevant statutory provisions if requested by a person affected, produce the warrant of appointment or copy of it to that person.

(3) An appointment under this Regulation shall cease—

(a) if the appointing supervisory authority revokes the appointment,

(b) if the appointment is for a fixed period, on the expiry of that period, or

(c) if the person appointed is a member of staff of the appointing supervisory authority concerned, when that person ceases to be a member of staff of the supervisory authority.

(4) An authorised officer, when exercising any powers conferred on an authorised officer by these Regulations, may be accompanied by such other authorised officers or members of the Garda Síochána, or both, as he or she considers necessary.

(5) Nothing in paragraph (4) affects the exercise by an authorised officer who is a member of the Garda Síochána of any power, which apart from that paragraph, he or she could exercise by virtue of paragraph (1) of Regulation 23 or otherwise.

(6) A person who—

(a) obstructs or impedes an authorised officer in the exercise of a power under Regulation 23,

(b) fails to comply with a request or requirement of an authorised officer under Regulation 23,

(c) in purported compliance with a request or requirement, mentioned in subparagraph (b), gives information that is false or misleading in a material respect, or

(d) fails, or refuses, to comply with a request or requirement, mentioned in subparagraph (b),

commits an offence.

Powers of authorised officers

23.

(1) For the purpose of obtaining, or verifying, any information which may be required in relation to a matter mentioned in these Regulations, an authorised officer may, on production of an appointment under Regulation 22 authorising him or her to exercise one or more specified powers under paragraph (2), exercise that power or those powers.

(2) The powers mentioned in paragraph (1) are the following:

(a) to enter, if necessary by reasonable force, and search any place, other than a dwelling, at which any activity in connection with the business of a relevant person, or a person having control of a relevant person, is carried on;

(b) to seize and retain any books, documents or records relating to an activity found at any place referred to in subparagraph (a) and take any other steps which appear to the officer to be necessary for preserving, or preventing interference with, such books, documents or records;

(c) to require any person who carries on an activity referred to in subparagraph (a) and any person employed in connection therewith to—

(i) give to the authorised officer his or her name, home address and occupation, and

(ii) provide to the authorised officer any books, documents or records relating to that activity which are in that person’s power or control, and to give to the officer such information as he or she may reasonably require in regard to any entries in such books, documents or records, and where such books, documents or records are kept in a non-legible form to reproduce them in a legible form;

(d) to inspect and take copies of or extracts from any such books, documents or records, including in the case of information in a non-legible form, copies of or extracts from such information in a permanent legible form;

(e) to require a person mentioned in subparagraph (c) to give to the authorised officer any information he or she may require in regard to the persons carrying on the activity referred to in subparagraph (a) or employed in connection therewith;

(f) to require a person mentioned in subparagraph (c) to give to the authorised officer any other information which the officer may reasonably require in regard to the activity referred to in subparagraph (a).

(3) In this Regulation—

“records” includes, in addition to records in writing—

(a) discs, tapes, sound-tracks or other devices in which information, sounds or signals are embodied so as to be capable (with or without the aid of some other instrument) of being reproduced in legible or audible form,

(b) films, tapes or other devices in which visual images are embodied so as to be capable (with or without the aid of some other instrument) of being reproduced in visual form, and

and a reference to a copy of records includes, in the case of records falling within paragraph (a) only, a transcript of the sounds or signals embodied therein, in the case of records falling within paragraph (b), a still reproduction of the images embodied therein and, in the case of records falling within both of those paragraphs, such a transcript and such a still reproduction;

“tape” includes—

(a) a disc, magnetic tape, soundtrack or other device in which sounds or signals may be embodied for the purpose of being reproduced (with or without the aid of some other instrument) in audible form, and

(b) a film, disc, magnetic tape or other device in which visual images may be embodied for the purpose of being reproduced (with or without the aid of some other instrument) in visual form.

PART 7 PENALTIES AND PROSECUTIONS

Penalties and prosecutions

24.

(1) A person that commits an offence under Regulation 4(7), 4(8), 5(4), 11(7), 13(19), 14(8), 15(6), 17(14), 22(6), 25(1), 25(2), 25(3) or 27(2) is liable—

(a) on summary conviction, to a class A fine or imprisonment for a term not exceeding 6 months, or both, or

(b) on indictment, to a fine not exceeding €500,000 or imprisonment for a term not exceeding 3 years, or both.

(2) A person that commits an offence under Regulation 8(4) is liable, on summary conviction, to a class A fine.

(3) Proceedings in relation to a summary offence under Regulation 4(7), 4(8), 5(4), 8(4), 11(7) or 13(19) may be brought and prosecuted by a supervisory authority.

(4) In proceedings for an offence, committed under a Regulation mentioned in paragraph (1) or (2), it shall be a defence against whom such proceedings are brought to prove that the person took all reasonable steps and exercised all due diligence to avoid the commission of the offence.

Offences in relation to water

25.

(1) A person that causes—

(a) the pollution, or

(b) the contamination,

of a source of a water supply that is intended for human consumption causing the supply of water that is not wholesome or clean or causes a risk to human health, commits an offence.

(2) A person that fails to address a risk that has been identified, in relation to a water supply that is intended for human consumption, following notification in writing by the relevant supervisory authority to the person concerned, requiring removal or mitigation of the risk, commits an offence.

(3) A person that causes, or assists in causing, damage to—

(a) a source of a water supply that is intended for human consumption, or

(b) a public water supply,

commits an offence.

(4) Proceedings in relation to a summary offence under paragraph (1), (2) or (3) may be brought and prosecuted by the relevant supervisory authority or Uisce Éireann.

Offences by bodies corporate

26.

(1) Where an offence under these Regulations has been committed by a body corporate and is proved to have been committed with the consent or connivance of or to be attributable to any neglect on the part of a person being a director, manager, secretary or other similar officer of the body corporate, or of a person who was purporting to act in any such capacity, that person as well as the body corporate is guilty of an offence and is liable to be proceeded against and punished as if that person was guilty of the first-mentioned offence.

(2) Where the affairs of a body corporate are managed by its members, paragraph (1) shall apply in relation to the acts and defaults of a member in connection with that member’s functions of management as if that member was a director of the body corporate.

PART 8 SUPERVISORY AUTHORITIES

Directions of supervisory authorities

27.

(1) A supervisory authority may give such directions as it considers appropriate for the purposes of its functions under these Regulations.

(2) A person that fails to comply with a direction given under paragraph (1) commits an offence.

Guidelines: practical guidance for water suppliers and supervisory authorities

28.

(1) The EPA shall issue guidelines for the purposes of providing practical guidance–

(a) to water suppliers in respect of exempted supplies under Regulation 4, and

(b) to the supervisory authorities in respect of performance verification to be undertaken by the EPA under Regulation 30.

(2) The supervisory authorities and water suppliers, as the case may be, shall comply with guidelines issued under paragraph (1)(b).

(3) Guidelines issued under paragraph (1) shall be published by the EPA on a website maintained by it.

Charges by supervisory authorities

29.

(1) A supervisory authority may charge for monitoring the quality of water supplies intended for human consumption.

(2) A charge made by a supervisory authority by virtue of paragraph (1) shall be of such amount as the authority considers appropriate, but shall not exceed the cost of such monitoring.

(3) A supervisory authority may recover the amount of any charge made by it under paragraph (1) as a simple contract debt in any court of competent jurisdiction.

Intervention, and performance verification, by supervisory authority

30.

(1) Without prejudice to Regulation 15, having exercised such of its powers under these Regulations as it considers appropriate, and having considered any information furnished to it or otherwise coming into its possession in consequence of that exercise, each supervisory authority shall, with a view to achieving satisfactory compliance of water supplied for human consumption with relevant water quality standards or other parametric values specified in Schedule 1, do one, or both, of the following:

(a) issue such direction to a water supplier, as it considers necessary;

(b) provide, on such terms and conditions as may be agreed, such assistance, or support as the supervisory authority considers, in consultation with the water supplier, would be helpful.

(2) Where a water supplier fails to comply with a direction issued under paragraph (1) or Regulation 15, the supervisory authority may carry out, cause to be carried out, or arrange for, such action as it considers necessary to ensure compliance with that direction, and the costs of such action may be recovered by the authority from the water supplier concerned as a simple contract debt in any court of competent jurisdiction.

(3) Each supervisory authority shall undertake an audit of water supplies, for which it has supervisory responsibilities, to ensure that the provisions of these Regulations are being complied with by the relevant water supplier.

(4) The frequency and content of the audit provided for in paragraph (3) shall be in accordance with guidelines prepared by the EPA under Regulation 28.

Injunctive relief

31.

(1) Where, on application by a supervisory authority to the High Court, the court is satisfied that a person has failed to comply with a direction or a requirement of, or under, these Regulations, the court may by order—

(a) direct the person to comply with the direction or requirement, and

(b) make such other provision, including provision in relation to the payment of costs, as the court considers appropriate.

(2) An application for an order under this Regulation shall be by motion, and the High Court, when considering the matter, may make such interim or interlocutory order as it considers appropriate.

(3) An application for an order under this Regulation may be made whether or not there has been a prosecution for an offence under these Regulations in relation to the activity concerned, and shall not prejudice the initiation of a prosecution for an offence under these Regulations in relation to the activity concerned.

PART 9 FINAL PROVISIONS

Service of directions

32.

(1) Where a direction is required to be issued to a person under these Regulations, it shall be in writing addressed to the party concerned and given to the party in one of the following ways:

(a) by delivering it to the party concerned;

(b) by leaving it at the address at which the party concerned ordinarily carries on business;

(c) by sending it by pre-paid registered post addressed to the party concerned at the address at which that party ordinarily carries on business;

(d) if an address for the service of directions has been furnished by the party concerned, by leaving it at, or sending it by pre-paid registered post addressed to that party at that address;

(e) by sending it by means of electronic mail or a facsimile machine, to a device or facility for the reception of electronic mail or facsimiles located at the address at which the party concerned carries on business or, if an electronic address or facsimile number address for the service of a direction has been furnished by the party concerned, that electronic address or facsimile machine, but only if—

(i) the recipient’s facility for the reception of electronic mail generates a message confirming a receipt of the electronic mail, or

(ii) the sender’s facsimile machine generates a message confirming successful delivery of the total number of pages of the notice or direction;

and it is also given in one of the other ways mentioned in subparagraphs (a) to (d).

(2) For the purpose of this Regulation, a company within the meaning of the Companies Acts, or the Companies Act 2014 , is deemed to be ordinarily resident at its registered office, and every corporate body and every unincorporated body of persons is deemed to be ordinarily resident at its principal office or place of business.

Information Sharing

33.

The supervisory authorities, the source protection authorities and the water suppliers shall share such information appropriate to their functions, as may be required and requested, in writing, under these Regulations.

Transitional provisions

34.

(1) The parametric values set under Regulation 6 in respect of Bisphenol A, Chlorate, Chlorite, Haloacetic Acids, Microcystin-LR, PFAS Total, Sum of PFAS and Uranium shall not apply in respect of water intended for human consumption up to, and including, 11 January 2026.

(2) Water suppliers shall not be obliged to monitor water intended for human consumption in accordance with Regulation 13 for Bisphenol A, Chlorate, Chlorite, Haloacetic Acids, Microcystin-LR, PFAS Total, Sum of PFAS and Uranium until after the date specified in paragraph (1).

(3) Directions made, and performance verification measures being undertaken, under the European Union (Drinking Water) Regulations 2014 ( S.I. No. 122 of 2014 ) shall, notwithstanding the revocation of those Regulations by Regulation 35, continue with full force and effect as if those Regulations had not been revoked.

(4) Notwithstanding the revocation of the European Union (Drinking Water) Regulations 2014 ( S.I. No. 122 of 2014 ) by Regulation 35, a person appointed to be an authorised person appointed for the purpose of those Regulations shall continue such appointment as if those Regulations had not be revoked, subject to those Regulations.

Revocations

35.

(1) Subject to paragraph (2), the following are revoked:

(a) the European Union (Drinking Water) Regulations 2014 ( S.I. No. 122 of 2014 );

(b) the European Union (Drinking Water)(Amendment) Regulations 2017 ( S.I. No. 464 of 2017 );

(2) Any proceedings initiated, or criminal prosecutions instituted, under the Regulations mentioned in paragraph (1) may be continued as if the revocations under paragraph (1) had not been made and any order made, or fine or penalty imposed, shall have effect accordingly.

(3) Any directions issued to any person, under the Regulations mentioned in paragraph (1) shall continue to apply and have full effect as if the revocations under paragraph (1) had not been made.

SCHEDULE 1

Regulations 4(2), 6(1) to (4), 7, 8(2), 10(4), 11(5), 12(1), (3) and (4), 13(2), (3) (5) and (11) to (13), 14(2), 15(3), 16(1), 17(1) to (5), (8), (10) and (13), 18(1) and 30(1)

MINIMUM REQUIREMENTS FOR PARAMETRIC VALUES USED TO ASSESS THE QUALITY OF WATER INTENDED FOR HUMAN CONSUMPTION

TABLE A

MICROBIOLOGICAL PARAMETERS


Parameter	Parametric value	Unit	Notes
Intestinal enterococci	0	number/100 ml	Note 1
Escherichia coli (E.coli)	0	number/100 ml	Note 1

Note to Table

Note 1: For water put into bottles or containers, the unit is number/250 ml.

TABLE B

CHEMICAL PARAMETERS


Parameter	Parametric value	Unit	Notes
Acrylamide	0.10	μg/l	Note 1
Antimony	10	μg/l
Arsenic	10	μg/l
Benzene	1.0	μg/l
Benzo(a)pyrene	0.010	μg/l
Bisphenol A	2.5	μg/l
Boron	1.5	mg/l	Note 2
Bromate	10	μg/l
Cadmium	5.0	μg/l
Chlorate	0.25	mg/l	Note 3
Chlorite	0.25	mg/l	Note 4
Chromium	25	μg/l	Note 5
Copper	2.0	mg/l
Cyanide	50	μg/l
1,2-dichloroethane	3.0	μg/l
Epichlorohydrin	0.10	μg/l	Note 6
Fluoride	1.5	mg/l
Haloacetic acids (HAAs)	60	μg/l	Note 7
Lead	5	μg/l	Notes 8 & 9
Mercury	1.0	μg/l
Microcystin-LR	1.0	μg/l	Note 10
Nickel	20	μg/l
Nitrate	50	mg/l	Note 11
Nitrite	0.50	mg/l	Note 11
Pesticides	0.10	μg/l	Notes 12, 13 & 14
Pesticides — Total	0.50	μg/l	Note 15
PFAS Total	0.50	μg/l	Note 16
Sum of PFAS	0.10	μg/l	Note 17
Polycyclic aromatic hydrocarbons	0.10	μg/l	Note 18
Selenium	20	μg/l	Note 19
Tetrachloroethene and Trichloroethene	10	μg/l	Note 20
Trihalomethanes Total	100	μg/l	Note 21
Uranium	30	μg/l
Vinyl chloride	0.50	μg/l	Note 22

Notes to Table

Note 1 The parametric value of 0.10 μg/l refers to the residual monomer concentration in the water as calculated according to specifications of the maximum release from the corresponding polymer in contact with the water;

Note 2 A parametric value of 2.4 mg/l shall be applied when desalinated water is the predominant water source of the supply system concerned or in regions where geological conditions could lead to high levels of boron in groundwater;

Note 3 A parametric value of 0.70 mg/l shall be applied where a disinfection method that generates chlorate, in particular chlorine dioxide, is used for disinfection of water intended for human consumption. Where possible, without compromising disinfection, the water supplier shall strive for a lower value. This parameter shall be measured only if such disinfection methods are used;

Note 4 A parametric value of 0.70 mg/l shall be applied where a disinfection method that generates chlorite, in particular chlorine dioxide, is used for disinfection of water intended for human consumption. Where possible, without compromising disinfection, the water supplier shall strive for a lower value. This parameter shall be measured only if such disinfection methods are used;

Note 5 A parametric value of 25 μg/l shall be met, at the latest, by 12 January 2036. The parametric value for chromium until that date shall be 50 μg/l;

Note 6 The parametric value of 0.10 μg/l refers to the residual monomer concentration in the water as calculated according to specifications of the maximum release from the corresponding polymer in contact with the water;

Note 7 This parameter shall be measured only when disinfection methods that can generate HAAs are used for the disinfection of water intended for human consumption. It is the sum of the following five representative substances: monochloro-, dichloro-, and trichloro-acetic acid, and mono- and dibromo-acetic acid;

Note 8 The parametric value of 5 μg/l shall be met, at the latest, by 12 January 2036. The parametric value for lead until that date shall be 10 μg/l;

Note 9 After that date, the parametric value of 5μg/l shall be met at least at the point of supply to the domestic distribution system. For the purposes of point (b) of the first subparagraph of Article 11(2) of the Directive, the parametric value of 5 μg/l at the tap shall apply;

Note 10 This parameter shall be measured only in the event of potential blooms in source water (increasing cyanobacterial cell density or bloom forming potential);

Note 11 A water supplier shall ensure that the condition [nitrate]/50 + [nitrite]/3 < 1, where the square brackets signify the concentrations in mg/l for nitrate (NO3) and nitrite (NO2), is complied with and that the parametric value of 0.10 mg/l for nitrites is complied with ex water treatment works;

Note 12 ‘Pesticides’ means the following:

(a) organic insecticides;

(b) organic herbicides;

(d) organic nematocides;

(e) organic acaricides;

(f) organic algicides;

(g) organic rodenticides;

(h) organic slimicides;

(i) related products (inter alia, growth regulators);

and their metabolites as defined in point (32) of Article 3 of Regulation (EC) No 1107/2009 of the European Parliament and of the Council of 21 October 2009,⁸ that are considered relevant for water intended for human consumption. A pesticide metabolite shall be deemed relevant for water intended for human consumption if there is a reason to consider that it has intrinsic properties comparable to those of the parent substance in terms of its pesticide target activity or that either itself or its transformation products generate a health risk for consumers.

Note 13 The parametric value of 0.10 μg/l shall apply to each individual pesticide. In the case of aldrin, dieldrin, heptachlor and heptachlor epoxide, the parametric value shall be 0.030 μg/l;

Note 14 The Minister for Agriculture, Food and the Marine shall define a guidance value to manage the presence of non-relevant metabolites of pesticides in water intended for human consumption. Only pesticides which are likely to be present in a given supply need to be monitored. Based on the data reported by the EPA, the European Commission may establish a database of pesticides and their relevant metabolites taking into account their possible presence in water intended for human consumption;

Note 15 ‘Pesticides Total’ means the sum of all individual pesticides, as defined in the previous row, detected and quantified in the monitoring procedure;

Note 16 ‘PFAS Total’ means the totality of per- and polyfluoroalkyl substances. This parametric value shall only apply once technical guidelines for monitoring this parameter are developed by the European Commission in accordance with Article 13(7) of the Directive. The EPA may then decide to use either one or both of the parameters ‘PFAS Total’ or ‘Sum of PFAS’;

Note 17 ‘Sum of PFAS’ means the sum of per-and polyfluoroalkyl substances considered a concern as regards water intended for human consumption listed in point 3 of Part 2 of Schedule 3. This is a subset of ‘PFAS Total’ substances that contain a perfluoroalkyl moiety with three or more carbons (i.e. –CnF2n-, n > 3) or a perfluoroalky-lether moiety with two or more carbons (i.e. –CnF2nOCmF2m-, n and m > 1);

Note 18 Sum of concentrations of the following specified compounds: benzo(b)fluor-anthene, benzo(k)fluoranthene, benzo(ghi)perylene, and indeno(1,2,3-cd)pyr-ene;

Note 19 A parametric value of 30 μg/l shall be applied for regions where geological conditions could lead to high levels of selenium in groundwater;

Note 20 The sum of concentrations of these two parameters;

Note 21 Where possible, without compromising disinfection, water suppliers shall strive for a lower parametric value. It is the sum of concentrations of the following specified compounds: chloroform, bromoform, dibromochloromethane and bromodichloromethane;

Note 22 The parametric value of 0.50 μg/l refers to the residual monomer concentrations in the water as calculated according to specifications of the maximum release from the corresponding polymer in contact with the water;

TABLE C

INDICATOR PARAMETERS


Parameter	Parametric value	Unit	Notes
Aluminium	200	μg/l
Ammonium	0.50	mg/l
Chloride	250	mg/l	Note 1
Clostridium perfringens (including spores)	0	number/100 ml	Note 2
Colour	Acceptable to consumers and no abnormal change
Conductivity	2,500	μS cm^-1 at 20 °C	Note 3
Hydrogen ion concentration	≥ 6.5 and ≤9.5	pH units	Note 3 & 4
Iron	200	μg/l
Manganese	50	μg/l
Odour	Acceptable to consumers and no abnormal change
Oxidisability	5.0	mg/l O2	Note 5
Sulphate	250	mg/l	Note 1
Sodium	200	mg/l
Taste	Acceptable to consumers and no abnormal change
Colony count 22 °C	No abnormal change
Coliform bacteria	0	number/100 ml	Note 6
Total organic carbon (TOC)	No abnormal change		Note 7
Turbidity	Acceptable to consumers and no abnormal change

Water should not be aggressive or corrosive. This applies particularly to water undergoing treatment (demineralization, softening, membrane treatment, reverse osmosis, etc.).

Where water intended for human consumption is derived from treatment that significantly demineralizes or softens water, calcium and magnesium salts could be added to condition the water in order to reduce any possible negative health impact, as well as to reduce the corrosiveness or aggressivity of water and to improve taste. Minimum concentrations of calcium and magnesium or total dissolved solids in softened or demineralized water could be established taking into account the characteristics of water that enters those processes.

Notes to Table

Note 1: The water should not be corrosive;

Note 2: The parameter shall be measured if the risk assessment indicates that it is appropriate to do so;

Note 3: The water should not be aggressive;

Note 4: For still water put into bottles or containers, the minimum value may be reduced to 4,5 pH units. For water put into bottles or containers which is naturally rich in or artificially enriched with carbon dioxide, the minimum value may be lower.

Note 5: This parameter need not be measured if the parameter TOC is analysed;

Note 6: For water put into bottles or containers, the unit is number / 250 ml;

Note 7: This parameter need not be measured for supplies of less than 10,000 cubic metres a day.

TABLE D

PARAMETERS RELEVANT FOR THE RISK ASSESSMENT OF DOMESTIC DISTRIBUTION SYSTEMS


Parameter	Parametric value	Unit	Notes
Legionella	< 1000	CFU/1	This parametric value is set for the purposes of Regulations 12 and 17. Actions provided for in those Regulations could be considered even when the value is below the parametric value, e.g. in cases of infections and outbreaks. In such cases, the source of infection should be confirmed and the species of Legionella should be identified.
Lead	10	μg/l	This parametric value is set for the purposes of Regulations 12 and 17. Water suppliers should use their best endeavours to achieve the lower value of 5 μg/l by 12 January 2036.

SCHEDULE 2 Regulations 10(10) and (13), 11(4) and 13(5), (6), (13) and (17)

MONITORING

PART 1 General objectives and monitoring programmes for water intended for human consumption

Monitoring programmes established pursuant to Regulation 13(13) for water intended for human consumption shall—

(a) verify that the measures in place to control risks to human health throughout the water supply chain from the abstraction area through treatment and storage to distribution are working effectively and that water intended for human consumption at the point of compliance is wholesome and clean,

(b) provide information on the quality of water supplied for human consumption to demonstrate that the obligations set out in Article 4 of the Directive and the parametric values set in accordance with Regulation 6 are being met, and

Monitoring programmes established pursuant to Regulation 13(13) shall include one or a combination of the following:

(a) collection and analysis of discrete water samples;

(b) measurements recorded by a continuous monitoring process.

In addition, monitoring programmes may consist of the following

(a) inspections of records of the functionality and maintenance status of equipment;

(b) inspections of the abstraction area, and of the treatment, storage and distribution infrastructure, without prejudice to monitoring requirements provided for in Regulation 10(4)(c) and Regulation 12(1).

Monitoring programmes shall also include an operational monitoring programme that provides rapid insight into operational performance and water quality problems and that allows rapid pre-planned remedial action. Such operational monitoring programmes shall be supply-specific, taking into account the outcomes of the identification of hazards and hazardous events and risk assessment of the supply system, and shall be intended to confirm the effectiveness of all control measures in abstraction, treatment, distribution and storage.

The operational monitoring programme shall include the monitoring of the parameter ‘turbidity’ at the water supply plant’ in order to regularly control the efficacy of physical removal by filtration processes, in accordance with the reference values and frequencies indicated in the following table (not applicable for groundwater sources where turbidity is caused by iron and manganese):

TABLE


Operational parameter	Reference value
turbidity at the water supply plant	0.3 NTU in 95 % of samples and none to exceed 1 NTU
Volume (m³) of water distributed or produced each day within a supply zone	Minimum frequency of sampling and analysis
≤ 1,000	Weekly
> 1,000 to ≤ 10,000	Daily
> 10,000	Continuous

The operational monitoring programme shall also include the monitoring of the following parameters in raw water to control the efficacy of the treatment processes against microbiological risks:


Operational parameter	Reference value	Unit	Notes
Somatic coliphages	50 (for raw water)	Plaque Forming Units (PFU)/100ml	This parameter shall be measured if the risk assessment indicates that it is appropriate to do so. If it is found in raw water at concentrations > 50 PFU/100 ml, it should be analysed after steps of the treatment train in order to determine log removal by the barriers in the place and to assess whether the risk of a breakthrough of pathogenic viruses is sufficiently under control.

The EPA shall ensure that monitoring programmes are reviewed on a continuous basis and updated or confirmed not less than once every 6 years.

PART 2 Parameters and sampling frequencies

Point 1 - List of parameters

Group A:

The following parameters (Group A) shall be monitored in accordance with the monitoring frequencies set out in Table of point 2:

(a) Escherichia coli (E. coli), intestinal enterococci, coliform bacteria, colony count 22^oC, colour, turbidity, taste, odour, pH and conductivity;

(b) other parameters identified as relevant in the monitoring programme, in accordance with Regulation 6 and, where relevant, through a risk assessment of the supply system as set out in Regulation 11 and Part 3 of this Schedule.

Under specific circumstances, the following parameters shall be added to the Group A parameters:

(a) ammonium and nitrite, if chloramination is used;

(b) aluminium and iron, if used as water treatment chemicals.

Escherichia coli (E.coli) and intestinal enterococci are considered ‘core parameters’ and their monitoring frequencies shall not be the subject of a reduction due to a risk assessment of the supply system in accordance with Regulation 11 and Part 3 of this schedule. They shall always be monitored not less than at the frequencies set out in the Table in point 2.

Group B:

In order to determine compliance with all parametric values set out in these Regulations, all other parameters not analysed under Group A and set in accordance with Regulation 6, except for parameters set out in Table D in Schedule 1, shall be monitored not less than at the frequencies set out in Note 2 to the Table, unless a different sampling frequency is determined on the basis of a risk assessment of the supply system carried out in accordance with Regulation 11 and Part 3 of this schedule.

Point 2 - Sampling frequencies

TABLE

Minimum frequency of sampling and analysis for compliance monitoring


Volume of water distributed or produced each day within a supply zone (Notes 1 and 2) m³	Volume of water distributed or produced each day within a supply zone (Notes 1 and 2) m³	Group A parameter number of samples per year	Group B parameter number of samples per year
	< 10	> 0 (Note 4)	> 0 (Note 4)
≥ 10	≤ 100	2	1 (Note 5)
> 100	≤ 1,000	4	1
> 1,000	≤ 10,000	4 for the first 1,000 m³/d + 3 for each additional 1,000 m³/d and part thereof of the total volume (Note 3)	1 for the first 1,000 m³/d + 1 for each additional 4,500 m³/d and part thereof of the total volume (Note 3)
> 10,000	≤ 100,000	4 for the first 1,000 m³/d + 3 for each additional 1,000 m³/d and part thereof of the total volume (Note 3)	3 for first 10,000 m³/d + 1 for each additional 10,000 m³/d and part thereof of the total volume (Note 3)
> 100,000		4 for the first 1,000 m³/d + 3 for each additional 1,000 m³/d and part thereof of the total volume (Note 3)	12 for first 100,000 m³/d +1 for each additional 25,000 m³/d and part thereof of the total volume (Note 3)

Notes to Table

Note 1: A supply zone is geographically defined area within which water intended for human consumption comes from one or more sources and within which the water quality can be considered as being approximately uniform;

Note 2: The volumes are calculated as averages taken over a calendar year. The number of inhabitants in a supply zone may be used instead of the volume of water to determine the minimum frequency, assuming water consumption of 200 l/ (day*capita);

Note 3: The frequency indicated is calculated as follows: e.g. 4,300 m³/d = 16 samples for Group A parameters (four of the first 1,000 m³/d + 12 for additional 3,300 m³/d);

Note 4: For water suppliers, where an exemption has not been granted under Regulation 3(2), the EPA shall lay down the minimum sampling frequency for parameters of Group A and B, provided that core parameters are monitored not less than once per year;

Note 5: The EPA may reduce the sampling frequency, provided that all parameters set in accordance with Regulation 6 are monitored not less than once every six years and are monitored in cases where a new water source is integrated into the water supply system or changes to that system, as a result of which a potentially adverse effect on the quality of water is to be expected, are made;

PART 3 Risk assessment and risk management of the supply system

Based on the outcome of risk assessment of the supply system as referred to in Regulation 11, the list of parameters considered in the monitoring shall be extended and the sampling frequencies set out in Part 2 increased where any of the following conditions is fulfilled:

(a) the list of parameters or frequencies set out in this Schedule is not sufficient to fulfil the obligations imposed under Regulation 13(2);

(b) additional monitoring is required for the purposes of Regulation 13(11);

(d) increasing the sampling frequencies is necessary pursuant to Regulation 10(10)(a).

As a result of a risk assessment of the supply system, the list of parameters considered in the monitoring and the sampling frequencies set out in Part 2 may be reduced provided that the following conditions are met:

(a) the location and frequency of sampling is determined in relation to the parameter’s origin, as well as the variability of, and long-term trend regarding, its concentration, taking into account Regulation 7;

(b) as regards reducing the minimum sampling of a parameter, the results obtained from samples collected at regular intervals over a period of not less than three years, from sampling points representative of the whole supply zone, are all less than 60 % of the parametric value;

(c) as regards removing a parameter from the list of parameters to be monitored, the results obtained from samples collected at regular intervals over a period of not less than three years, from sampling points representative of the whole supply zone, are all less than 30 % of the parametric value;

(d) as regards removing a parameter from the list of parameters to be monitored, the decision is based on the outcome of the risk assessment that takes into account the results of monitoring of sources of water intended from human consumption and confirms that human health is protected from the adverse effects of any contamination of water intended for human consumption, as laid down in Article 1 of the Directive;

(e) as regards reducing the sampling frequency of a parameter or removing a parameter from the list of parameters to be monitored, the risk assessment confirms that no factor that can be reasonably anticipated is likely to cause deterioration of the quality of the water intended for human consumption.

Where monitoring results, demonstrating that the conditions set out in points (2)(b) to (2)(e) are met, are already available by 12 January 2021, those monitoring results may, from that date, be used to adapt the monitoring following the risk assessment of the supply system.

Where adjustments of monitoring have already been implemented following risk assessment of the supply system in accordance, inter alia, with Part C of Annex II of Council Directive 98/83/EC of 3 November 1998⁹ , the EPA may provide for the possibility to confirm their validity without requiring monitoring in accordance with point 2(b) and 2(c) over a further period of not less than three years from points representative of the whole supply zone.

PART 4 Sampling methods and sampling points

Sampling points shall be determined so as to ensure compliance with Regulation 7(1). In the case of a distribution network, the water supplier may take samples within the supply zone or at the treatment works for particular parameters if it can be demonstrated that there would be no adverse change to the measured value of the parameters concerned. As far as possible, the number of samples shall be distributed equally in time and location.

Sampling at the point of compliance shall meet the following requirements:

(a) compliance samples for certain chemical parameters, in particular copper, lead, and nickel, shall be taken at the consumers’ tap without prior flushing. A random daytime sample of one litre volume is to be taken. As an alternative, the water supplier may use fixed stagnation time methods that better reflect their national situation, such as the average weekly intake by consumers, provided that, at the supply zone level, this does not result in fewer cases of non-compliance that using the random daytime method;

(b) compliance samples for microbiological parameters at the point of compliance shall be taken and handled in accordance with I.S. EN ISO 19458, sampling purpose B.

Samples for Legionella in domestic distribution systems shall be taken at risk points for proliferation of Legionella, points representative for systemic exposure to Legionella, or both. The supervisory authority shall establish guidelines for sampling methods for Legionella.

Sampling in the distribution network, with the exception of sampling at the consumers’ tap shall be in accordance with ISO 5667-5. For microbiological parameters, samples in the distribution network shall be taken and handled in accordance with I.S. EN ISO 19458, sampling purpose A.

SCHEDULE 3

Regulation 13(9)

SPECIFICATIONS FOR THE ANALYSIS OF PARAMETERS

Water suppliers shall ensure that the methods of analysis used for the purposes of monitoring and demonstrating compliance with these Regulations, with the exception of turbidity, are validated and documented in accordance with I.S. EN ISO/IEC 17025 or other equivalent standards accepted at international level. Water suppliers shall ensure that laboratories or parties contracted by laboratories apply quality management system practices in accordance with I.S. EN ISO/IEC 17025 or other equivalent standards accepted at international level.

For the purposes of assessing the equivalence of alternative methods with the methods laid down in this Schedule, the laboratories, or parties contracted by laboratories, may use standard I.S. EN ISO 17994, established as the standard on the equivalence of microbiological methods, or standard I.S. EN ISO 16140 or any other similar internationally accepted protocols, to establish the equivalence of methods based on principles other than culturing, which are beyond the scope of I.S. EN ISO 17994.

In the absence of an analytical method meeting the minimum performance criteria set out in Part 2, the water supplier concerned shall ensure that monitoring is carried out using the best available techniques not entailing excessive costs.

PART 1 Microbiological parameters for which methods of analysis are specified

The methods of analysis for microbiological parameters are:

(a) Escherichia coli (E. coli) and coliform bacteria (I.S. EN ISO 9308-1 or I.S. EN ISO 9308-2);

(b) intestinal enterococci (I.S. EN ISO 7899-2);

(d) Clostridium perfringens including spores (I.S. EN ISO 14189);

(e) Legionella (I.S. EN ISO 11731 for compliance with the value set out in Table D in Schedule 1);

for risk-based verification monitoring and to complement culture methods, in addition methods, such as ISO/TS 12869, rapid culture methods, non –culture-based methods, and molecular-based methods, in particular qPCR, can be used;

(f) Somatic coliphages;

for operational monitoring, Part 1 of Schedule 2, I.S. EN ISO 10705-2, and EN ISO 10705-3 can be used.

PART 2 Chemical and indicator parameters for which performance characteristics are specified

Chemical and indicator parameters

For the parameters set out in the Table, the method of analysis used shall, as a minimum, be capable of measuring concentrations equal to the parametric value with a limit of quantification, as defined in point (2) of Article 2 of Commission Directive 2009/90/EC of 31 July 2009¹⁰ of 30% or less of the relevant parametric value and an uncertainty of measurement as specified in the Table. The result shall be expressed using not less than the same number of significant figures as for the parametric value set out in Tables B and C in Schedule 1.

The uncertainty of measurement laid down in the Table shall not be used as an additional tolerance to the parametric values set out in Schedule 1.

TABLE

Minimum performance characteristic ‘Uncertainty of measurement’


Parameters	Uncertainty of measurement (Note 1) % of the parametric value (except for pH)	Notes
Aluminium	25
Ammonium	40
Acrylamide	30
Antimony	40
Arsenic	30
Benzo(a)pyrene	50	Note 2
Benzene	40
Bisphenol A	50
Boron	25
Bromate	40
Cadmium	25
Chloride	15
Chlorate	40
Chorite	40
Chromium	30
Copper	25
Cyanide	30	Note 3
1,2-dichloroethane	40
Epichlorohydrin	30
Fluoride	20
HAAs	50
Hydrogen ion concentration pH	0.2	Note 4
Iron	30
Lead	30
Manganese	30
Mercury	30
Microcystin-LR	30
Nickel	25
Nitrate	15
Nitrite	20
Oxidasability	50	Note 5
Pesticides	30	Note 6
PFAS	50
Polycyclic aromatic hydrocarbons	40	Note 7
Selenium	40
Sodium	15
Sulphate	15
Tetrachloroethene	40	Note 8
Trichloroethene	40	Note 8
Trihalomethanes-total	40	Note 7
Total organic carbon (TOC)	30	Note 9
Turbidity	30	Note 10
Uranium	30
Vinyl Chloride	50

Notes to Table

Note 1: Uncertainty of measurement is a non-negative parameter characterising the dispersion of the quantity values being attributed to a measure and, based on the information used. The performance criterion for measurement uncertainty (k = 2) is the percentage of the parametric value stated in the table or any stricter value. The uncertainty of measurement shall be estimated at the level of the parametric value, unless otherwise specified;

Note 2: If the value of uncertainty of measurement cannot be met, the best available technique should be selected (up to 60 %);

Note 3: The method determines total cyanide in all forms;

Note 4: The value of the uncertainty of measurement is expressed in pH units;

Note 5: Reference method: I.S. EN ISO 8467;

Note 6: The performance characteristics for individual pesticides are given as an indication. Values for the uncertainty of measurement as low as 30 % can be achieved for serval pesticides, while higher values up to 80 % may be allowed for a number of pesticides;

Note 7: The performance characteristics apply to individual substances, specified at 25 % of the parametric value set out in Table B in Schedule 1;

Note 8: The performance characteristics apply to individual substances, specified at 50 % of the parametric value set out in Table B in Schedule 1;

Note 9: The uncertainty of measurement should be estimated at the level of 3 mg/l of the total organic carbon (TOC). EN 1484 Guidelines for the determination of TOC and dissolved organic carbon (DOC) shall be used for the specification of the uncertainty of the test method;

Note 10: The uncertainty of measurement should be estimated at the level of 1.0 NTU (nephelometric turbidity units), in accordance with I.S. EN ISO 7027 or another equivalent standard method;

Sum of PFAS

The following substances shall be analysed based on the technical guidelines developed by the European Commission in accordance with Article 13(7) of the Directive:

(a) Perfluorobutanoic acid (PFBA);

(b) Perfluoropentanoic acid (PFPA);

(d) Perfluoroheptanoic acid (PFHpA);

(e) Perfluorooctanoic acid (PFOA);

(f) Perfluorononanoic acid (PFNA);

(g) Perfluorodecanoic acid (PFDA);

(h) Perfluoroundecanoic acid (PFUnDA);

(i) Perfluorododecanoic acid (PFDoDA);

(j) Perfluorotridecanoic acid (PFTrDA);

(k) Perfluorobutane sulfonic acid (PFBS);

(l) Perfluoropentane sulfonic acid (PFPS);

(m) Perfluorohexane sulfonic acid (PFHxS);

(n) Perfluoroheptane sulfonic acid (PFHpS);

(o) Perfluorooctane sulfonic acid (PFOS);

(p) Perfluoronoane sulfonic acid (PFNS);

(q) Perfluorodecane sulfonic acid (PFDS);

(r) Perfluoroundecane sulfonic acid;

(s) Perfluorododecane sulfonic acid;

(t) Perfluorotridecane sulfonic acid.

Those substances shall be monitored when the risk assessment and risk management of the catchment areas for abstraction points carried out in accordance with Regulation 10 conclude that those substances are likely to be present in a given water supply.

SCHEDULE 4

Regulation 14(1) and (3), and 10(4)

INFORMATION TO THE PUBLIC

The information in the following points shall be accessible to consumers on-line, in a user-friendly and customised way, and consumers may obtain access to that information by other means upon justified request:

(1) identification of the relevant water supplier, general information on the area and number of people supplied, and the method of water production, including on the types of water treatment and disinfection applied;

(2) the most recent monitoring results for parameters set out in Tables A, B and C in Schedule 1, including monitoring frequency together with any parametric value set in accordance with Regulation 6; the monitoring results shall not be more than one year old, except where the monitoring frequency set by these Regulations allows otherwise;

(3) information on the following parameters not set out in Table C in Schedule 1 and associated values;

(a) hardness;

(b) minerals, anions/cations dissolved in water;

calcium Ca,

magnesium Mg,

potassium K;

(4) in the event of a potential danger to human health as determined by supervisory authorities or other relevant bodies following an exceedance of the parametric values set in accordance with Regulation 6, information on the potential danger to human health and the associated health and consumption-related advice or a hyperlink providing access to such information;

(5) relevant information on risk assessment on risk assessment of the supply system;

(6) advice to consumers, including on how to reduce water consumption, where appropriate, how to use water responsibly according to local conditions and how to avoid health risks due to stagnant water;

(7) for water suppliers supplying not less than 10,000 cubic metres of water per day or serving not less than 50,000 people, annual information on the following:

(a) the overall performance of the water system in terms of efficiency and leakage rates, once that information is available and at the latest on 12 January 2026;

(b) the ownership structure of the water supply by the water supplier;

(c) where costs are recovered through a tariff system, information on the structure of the tariff per cubic metre of water, including fixed and variable costs and costs related to measures for the purposes of Regulation 21, where such measures have been taken by water suppliers;

(d) where available, a summary and statistics regarding consumer complaints received by the water suppliers on matters within the scope of these Regulations;

(8) Upon justified request, consumers shall be given access to historical data for information under paragraphs (2) and (3), dating back up to 10 years, if available, and not earlier than 13 January 2023.

SCHEDULE 5

Regulation 10(4)

PRINCIPLES FOR SETTING METHODOLOGY

REFERRED TO IN REGULATION 19

Groups of materials

Organic materials

Organic material shall only be made of the following:

(a) the starting substances listed in the European positive list of starting substances to be established by the European Commission in accordance with point (b) of the first subparagraph of Article 11(2) of the Directive.

(b) substances in relation to which there is no possibility that the substance and its reaction products are present at levels exceeding 0.1 μg/l in water intended for human consumption, unless for specific substances a more stringent value is needed taking into account their toxicity.

Organic materials shall be tested in accordance with Table 1 in line with methods for testing specified in relevant European standards or, in the absence thereof, an internationally or nationally recognised method and shall satisfy the requirements stipulated therein. For this purpose, the test results in terms of substance migration shall be converted into estimated levels at the tap.

Metallic materials

Only metallic materials included in the European positive list of compositions to be established by the European Commission in accordance with point (b) of the first subparagraph of Article 11(2) of the Directive shall be used. The limitations stipulated in the European positive list in respect of the composition of these materials, their use for certain products and the use of these products shall be compiled with.

Metallic materials shall be tested in accordance with the Table in line with methods for testing specified in relevant European standards or, in the absence thereof, an internationally or nationally recognised method and shall satisfy the requirements stipulated therein.

Cementitious materials

Cementitious materials shall only be made of one or more of the following:

(a) organic constituents listed in the European positive list of constituents to be established by the European Commission in accordance with point (b) of the first subparagraph of Article 11(2);

(b) organic constituents in relation to which there is no possibility that the constituents and their reaction products are present at levels exceeding 0.1 μg/l in water intended for human consumption;

Cement-bound materials shall be tested in accordance with the Table in line with methods for testing specified in relevant European standards or, in the absence thereof, an internationally or nationally recognised method and shall satisfy the requirements stipulated therein. For this purpose, the test results in terms of substance migration shall be converted into estimated levels at the tap.

Enamels and ceramic materials

Enamels and ceramic materials shall only be made of starting substances from the European positive list of compositions to be established by the European Commission in accordance with point (b) of the first subparagraph of Article 11(2) of the Directive, after carrying out an assessment of the elements used in the composition of these materials.

Enamels and ceramic materials shall be tested in accordance with the Table in line with methods for testing specified in relevant European standards or, in the absence thereof, an internationally or nationally recognised method and shall satisfy the requirements stipulated therein. For this purpose, the test results in terms of substance migration shall be converted into estimated levels at the tap.

Exceptions for assessment of materials used in minor and assembled components

For assembled products: minor components, parts and materials shall be described in detail and testing shall be reduced accordingly. For this purpose, ‘minor’ refers to a level of influence on the quality of water intended for human consumption that does not require full testing.

TABLE

Testing related to material type

This document does not substitute the official text published in the Irish Statute Book. We accept no responsibility for any inaccuracies arising from the transcription of the original into this format.

This text is published under Irish Statute Book's own terms of reuse, not a Legalize or public-domain licence. Irish Statute Book
CC-BY 4.0 (Oireachtas Open Data PSI Licence)
Contains Irish Public Sector Information licensed under the Oireachtas (Houses of the Oireachtas) Open Data PSI Licence / Creative Commons Attribution 4.0 International, sourced from https://www.irishstatutebook.ie.