Water Quality Regulations 2025 (Sixth Edition)

REGULATION P.O. Box 32800, Abu Dhabi, U.A.E | T+ 971 2 2070777 www.doe.gov.ae WATER QUALITY REGULATIONS 2025 EFFECTIVE DATE: 01/01/2025 OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 2 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Contents Foreword ............................................................................................... 4 Acknowledgements ................................................................................ 5 Change History Sheet ............................................................................ 7 Document Numbering ............................................................................ 9 1. Introduction ................................................................................. 10 1.1 Citation ............................................................................................ 10 1.2 Commencement .............................................................................. 10 1.3 Purpose ........................................................................................... 10 1.4 Scope .............................................................................................. 10 1.5 Relevant Regulations ...................................................................... 10 1.6 Provision of Information .................................................................. 11 1.7 Responsibility for Implementation ................................................... 11 1.8 References ...................................................................................... 11 1.9 Distribution ...................................................................................... 12 2. Definitions ................................................................................... 13 2.1 Interpretation ................................................................................... 13 2.2 Definitions ....................................................................................... 13 3. Wholesomeness ......................................................................... 17 3.1 Purpose ........................................................................................... 17 3.2 Definition ......................................................................................... 17 4. Drinking Water Safety Plan ......................................................... 18 4.1 Development of Drinking Water Safety Plan ................................... 18 4.2 Scope of Drinking Water Safety Plan .............................................. 18 4.3 Review of Drinking Water Safety Plan ............................................ 19 5. Monitoring of Water Supplies ...................................................... 21 5.1 Monitoring Programme .................................................................... 21 5.2 Sampling Frequency ....................................................................... 21 5.3 Initial Entries .................................................................................... 22 5.4 Data Collection and Reporting ........................................................ 22 5.5 Sampling and Testing Requirements .............................................. 23 5.6 Quality Compliance ......................................................................... 24 OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 3 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 5.7 Annual Water Quality Reports ......................................................... 25 6. Chemicals Use in Drinking Water ............................................... 27 6.1 Application Process and Requirements .......................................... 27 6.2 Monitoring and Trial Requirements ................................................. 27 6.3 General Guidance ........................................................................... 28 6.4 Revocations and Variations ............................................................. 28 6.5 Application Charges ........................................................................ 28 7. Audits and Assessments............................................................. 30 7.1 DoE Audit ........................................................................................ 30 7.2 Third Party Audit ............................................................................. 30 8. Review of DoE Decision ............................................................. 31 8.1 Application for Review ..................................................................... 31 8.2 Timescale for Application for Review .............................................. 31 8.3 DoE Request for Information ........................................................... 31 8.4 Derogation of Requirements ........................................................... 31 8.5 DoE Decision .................................................................................. 32 9. Failure to Comply with Regulations ............................................. 33 9.1 Reporting Failures and Incidents ..................................................... 33 9.2 Enforcement Procedures ................................................................ 33 10. Governing Law ........................................................................... 35 10.1 Governing Law ................................................................................ 35 Schedules ............................................................................................ 36 Schedule 1. Parameters and Limits ............................................................... 36 Schedule 2. Sampling Frequency .................................................................. 36 Schedule 3. Initial Entries Forms ................................................................... 36 Schedule 4. Drinking Water Performance Indices ......................................... 36 Schedule 5. Chemicals Use in Drinking Water .............................................. 36 OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 4 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Foreword The Department of Energy (DoE) was established by Law No. (11) of 2018 on 20 February 2018 (the Law). Under that Law, the DoE is the successor Entity to the Regulation and Supervision Bureau (RSB) and the Abu Dhabi Water and Electricity Authority (ADWEA). Accordingly, any references to the Regulation and Supervision Bureau, the Bureau, RSB, the Authority or ADWEA in any document, template or correspondence shall now be interpreted as referring to the DoE. The DoE is responsible for setting policy, standards and regulation for the Energy Sector as defined under Law No. (11), which includes all persons, companies and Entities operating in the Water sector in Abu Dhabi. These revised Regulations supersede those issued in 2021 (Fifth Edition) and are effective from 1 January 2025. They shall be cited as the Water Quality Regulations 2025 (Sixth Edition) referred to hereafter as the Regulations. The Regulations are intended to provide for the supply of wholesome drinking water to Consumers and reflect the current guidance of the World Health Organization (WHO). They have been developed following extensive consultation with the sector companies and other relevant stakeholders. They may also be downloaded from the DoE’s website at www.doe.gov.ae. Ahmed Mohamed Al Rumaithi UnderSecretary-Department of Energy http://dms.doe.gov.ae/HSE/External/Water%20and%20Wastewater/Regulations/Water%20Quality%20Regulations/Regulations%20Review/5th%20edition/Second%20Consultation/www.doe.gov.ae. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 5 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Acknowledgements The DoE gratefully acknowledges the contributions and comments provided by the following organisations: Licensees: i. Abu Dhabi Distribution Company (ADDC) ii. Abu Dhabi Transmission and Despatch Company (TRANSCO) iii. Al Ain Distribution Company (AADC) iv. Al Mirfa Power Company (AMPC) v. Arabian Power Company (APC) vi. Emirates Aluminium Company Limited (EMAL) vii. Emirates Sembcorp Water and Power Company F1 (ESWPC) viii. Emirates Water and Electricity Company (EWEC) ix. Fujairah Asia Power Company F2 (FAPCO) x. Fujairah Power Company F3 (FPC) xi. Gulf Total Tractebel Power Company A1 (GTTPC) xii. Mirfa International Power and Water Company (MIPCO) xiii. Mirfa 2 RO Water Desalination Company (M2) xiv. Modon Properties PJSC (MODON) xv. Ruwais Power Company S2 (RPC) xvi. Shuweihat Asia Power Company S3 (SAPCO) xvii. Shuweihat CMS International Power Company S1 (SCIPCO) xviii. TAQA Water Solutions Company xix. Taweelah Asia Power Company (TAPCO) xx. Taweelah RO Desalination Company (TDC) OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 6 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Government organisations & Stakeholders: i. Abu Dhabi Agriculture and Food Safety Authority (ADAFSA) ii. Abu Dhabi Department of Education and Knowledge (ADEK) iii. Abu Dhabi National Energy Company (TAQA) iv. Abu Dhabi National Oil Company (ADNOC) v. Abu Dhabi Public Health Centre (ADPHC) vi. Abu Dhabi Quality and Conformity Council (ADQCC) vii. Abu Dhabi Waste Management Centre (Tadweer) viii. Department of Culture and Tourism (DCT) ix. Department of Health (DoH) x. Department of Municipalities and Transport (DMT) xi. Environment Agency - Abu Dhabi (EAD) xii. Federal Authority for Nuclear Regulation (FANR) xiii. Ministry of Industry and Advanced Technology (MoIAT) OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 7 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Change History Sheet DOC. CHANGE REQUEST NO. & DATE PAGE NO. SUMMARY OF CHANGE NEW EFFECTIVE DATE DoE-DCR-122, 17/12/2024 All This is the sixth revision to the Regulations, since their publication in January 2000. This revision incorporates the following: • Amendments to Definitions: Definitions have been reviewed and updated accounting for sector changes; • Stakeholders’ feedback regarding sampling Parameters and Limits; • Amendments to Schedule 2: Regulated Activities, adding new desalination technologies e.g., atmospheric water recovery; • Amendments to Schedule 5- Schedule 5d: Adding material change timelines under the Licensee obligation; and • Other changes concerning the Regulations’ structure. 01/01/2025 OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 8 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 History of Revisions Revision Date Prepared by Checked by Issued to 0.0 January 2000 JS SN Publication 1.0 February 2002 JS SN Publication 2.0 January 2004 JS, NA LH Publication 3.0 July 2009 JS, NA CH Publication 4.0 July 2013 JS, NA NC Publication 5.0 January 2021 MG, SD TD Publication 6.0 January 2025 MG, AH, MN TD Publication OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 9 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Document Numbering These Regulations use the following numbering system: Parts are referenced by integers (e.g. 1, 2, 3, etc.) Regulations are referenced by one full stop between numbers (e.g. 1.1, 1.2, etc.) Clauses are referenced by two full stops between numbers (e.g. 3.1.2, etc.) Notes are indicated below the Clause in square brackets and italic text. For example, [Note: this Clause does not apply to Installations that have been …] OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 10 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 1. Introduction 1.1 Citation 1.1.1 These Regulations shall be cited as the Water Quality Regulations 2025 (Sixth Edition). 1.2 Commencement 1.2.1 These Regulations come into force on 1 January 2025. 1.2.2 These Regulations are issued by the DoE in accordance with Article (4) of Law No. (11) of 2018 and Article (62) of Law No. (2) of 1998. 1.2.3 These Regulations supersede and replace the Water Quality Regulations 2021 (Fifth Edition). 1.2.4 These Regulations may be amended or revoked by the DoE at any time. 1.3 Purpose 1.3.1 The purpose of these Regulations is to establish a legal framework for the provision of wholesome water to Consumers. 1.4 Scope 1.4.1 These Regulations apply to all Licensees, Entities and Consumers who operate or receive wholesome water. 1.4.2 Nothing in these Regulations is intended to conflict with or affect the operation of any relevant existing federal and Abu Dhabi Laws. 1.5 Relevant Regulations 1.5.1 These Regulations should be read in conjunction with the following regulations and codes: a) Code of Practice for the Inspection and Cleaning of Customer Water Storage Tanks; OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 11 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 b) The Water Transmission and Distribution Codes; c) The Customer Metering Regulations; d) The Incident Reporting Regulations; and e) The Water Supply Regulations. 1.5.2 Where conflict appears to exist between these Regulations and other regulations, codes, or any governmental legislation, the matter should be referred to the DoE for a binding decision in accordance with Part 8 of these Regulations. 1.6 Provision of Information 1.6.1 All Licensees and other relevant Entities are required to furnish the DoE with information to matters relating to these Regulations as the DoE may request from time to time. 1.6.2 Failure to provide the requested information in the time and manner decided by the DoE shall be considered as a failure to comply with these Regulations. 1.7 Responsibility for Implementation 1.7.1 All parties mentioned in Clause 1.4.1 are responsible for implementing these Regulations. 1.8 References 1.8.1 References to a standard in these Regulations means the current edition of the standard cited or its replacement. Where relevant, UAE or Abu Dhabi mandatory standards which may be issued from time to time by the competent authorities shall be applied. 1.8.2 The DoE also considers the World Health Organization (WHO) Water Quality Guidelines as the primary reference for the Regulations. The DoE may also consider other relevant regulatory guidance regarding water quality, including but not limited to: OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 12 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 a) Australian Drinking Water Guidelines; b) Drinking Water Standards for New Zealand; c) FANR-REG-19 “Regulation for Existing Exposure Situations”; d) GCC Standardization Organization (GSO) Drinking Water Standards; e) Ministry of Industry and Advanced Technology; f) USA National Primary Drinking Water Regulations; and g) USA Safe Drinking Water Act. 1.9 Distribution 1.9.1 Soft copies of the Regulations will be available on the DoE webpage. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 13 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 2. Definitions 2.1 Interpretation 2.1.1 Words defined in this Part begin with capital letters when used in the Regulations. 2.1.2 Words and expressions used in these Regulations, other than those defined herein, shall have the meanings ascribed to them in Law No. (2) of 1998 or Law No. (11) of 2018 (as applicable). 2.1.3 Words and expressions to which meanings are assigned by these Regulations shall (unless the contrary intention appears) have the same respective meanings in any document issued by the DoE under these Regulations. 2.1.4 Unless the context otherwise requires, any reference in these Regulations to a numbered Part, Clause or Schedule is a reference to the Part, Clause or Schedule of these Regulations bearing that number. 2.1.5 Any reference in these Regulations to a table is a reference to the relevant table in the numbered Schedules of these Regulations. 2.1.6 Words using the singular or plural number also include the plural or the singular number respectively. 2.1.7 Unless otherwise specified, days shall mean calendar days. 2.2 Definitions 2.2.1 The following words and expressions shall have the following meanings in these Regulations unless the context otherwise requires: Accreditation – means third-party attestation related to a conformity assessment body (e.g. laboratories), conveying formal demonstration of its competence to carry out specific conformity assessment tasks. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 14 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Accreditation Body – means any federal or local authority mandated or authorised to manage Accreditation schemes. ADOSH SF – Abu Dhabi Occupational Safety and Health System Framework. BCM – Business Continuity Management means a comprehensive management process, which highlights possible threats and impacts of such threats on the business operations of a Licensee. Consumer – a person to whom water is supplied for a purpose mentioned in Clause 3.1.1. Desalination – means any Plant or apparatus for the Desalination of water including a facility comprising one or more desalination units. Distribution System – means the system consisting (wholly or mainly) of water pipelines owned or operated by the Licensee and used for the distribution of wholesome water to the point of delivery to premises or customers and includes any Plant and equipment, including metering equipment, owned or operated by the Distribution Operator. Distribution Operator – means an Entity who is authorised by Licence granted by the DoE under the Law to distribute electricity and water inside the Emirate of Abu Dhabi. DoE – means the Department of Energy in the Emirate of Abu Dhabi, established under Law No. (11) of 2018. DBP – means Disinfection By-Product. Entity – an individual, establishment, company, association, society, partnership, corporation, municipality, institution, government organisation, agency or group. Incident Reporting Regulations – means the Incident Reporting Regulations issued by the DoE, as amended. Law – means both Law No. (11) of 2018 and Law No. (2) of 1998 (unless the context indicates otherwise). OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 15 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Licence – means a Licence to carry out a regulated activity as defined under the Law and granted by the DoE. Licensee – refers jointly to the holder of a Power and Desalination Licence, Transmission Licence, Electricity and Water Procurer and System Operator Licence or a Distribution and Supply Licence (including self-supply). Licensed Activities – the regulated activities as defined under the Law and permitted to be carried out by the Licensee pursuant to the conditions of the Licence. Licensed Transmission Owner – a person who is authorised by a Licence granted under the Law to transmit electricity and/or water. Operational Balancing Purposes – means purposes necessarily ancillary to the conduct of carrying out the Licensed Activities. Parameter – a property, element, organism or substance listed in the second column of the Tables in Schedule 1 to these Regulations. Plant – all water Plants used in water abstraction for a purpose mentioned in Part 3 (e.g. and not limited to seawater, groundwater, and air) that describes the fixed infrastructure above and below ground. Prescribed Concentration or Value (PCV) – in relation to any Parameter, means the maximum or minimum concentration or value specified in relation to that Parameter in the tables in Schedule 1 to these Regulations as measured by reference to the unit of measurement so specified. Reduced Number or Increased Number – means any relevant Reduced or Increased sampling frequency shown in any of the Tables 1 to 6 of Schedule 2 as an alternative to the Standard Number. Sampling Point – a point that is determined as such by a Licensee for the purposes of Part 5 of these Regulations. Standard Number – means such number of sampling frequency specified in the column headed “Standard” in the Tables of Schedule 2 as is applicable to the Parameter in question. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 16 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 System Operator – means the Entity authorized to undertake the role of ensuring operational security of the power and water system and balancing of electricity and water demand and supply. Transmission System – means the system consisting of water pipelines and associated Plant owned or operated by the Licensee to enable the transmission of water from one or more desalination facilities or water storage facilities to a pumping station or storage facility or between pumping stations in accordance with the System Operator’s instructions in connection with the transmission of water, or for Operational Balancing Purposes. UAE – United Arab Emirates. Water Supply Zone – an area that is designated by a Licensee (whether by reference to a source of supply, the number of persons supplied from any source, or otherwise) for the purposes of the provisions of these Regulations. Water Tanker – means a road vehicle registered by Abu Dhabi Police following certification of the Water Tanker for the purposes of supplying wholesome water. Water Transmission Code – means the code that defines the operating, planning and connection arrangements between the System Operator and users of water. User refers to Entities using the System Operator’s Water Trunk Mains System, as more particularly identified in each section of the Transmission Code concerned. Year – a calendar Year, according to the Gregorian calendar. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 17 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 3. Wholesomeness 3.1 Purpose 3.1.1 Water supplied for the purposes of drinking, washing, cooking or for food production purposes must be wholesome, and shall be regarded as wholesome if the requirements of Clause 3.2.1 below are satisfied. 3.2 Definition 3.2.1 Water shall be regarded as wholesome if: a) the water does not contain any element, organism or substance (other than a Parameter) at a concentration or value which, alone or in conjunction with any other element, organism or substance it contains would be detrimental to public health; and b) the water complies with the Prescribed Concentrations or Values of the Parameters listed in Tables A to H in Schedule 1. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 18 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 4. Drinking Water Safety Plan 4.1 Development of Drinking Water Safety Plan 4.1.1 A Drinking Water Safety Plan (DWSP) is the most effective means of consistently ensuring the safety of a water supply. 4.1.2 This is achieved using a comprehensive risk assessment and risk management approach that encompasses all steps in water supply from catchment to Consumer. 4.1.3 Each Licensee must develop a DWSP covering its specific Licensed Activities for the supply of wholesome water. 4.1.4 The DWSP should describe the operational and management controls that will be employed by Licensees to protect public health and ensure that the water which is supplied is wholesome. 4.1.5 Where Desalination, Transmission, Distribution and supply systems are inter- connected, the Licensees must: a) provide any information and resources to interconnected Licensees as reasonably required to develop a DWSP; and b) advise the interconnected Licensee, where applicable, of any changes to the Licensed Activities, which will require a change to a DWSP. 4.2 Scope of Drinking Water Safety Plan 4.2.1 The DWSP should be developed following the guidance outlined in the Water Safety Plan Manual of the WHO. 4.2.2 The scope of the DWSP must include: a) the roles and responsibilities of the Licensees and DWSP team members; b) a description of the systems and capabilities related to the Licensed Activities; OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 19 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 c) identification of the hazards and hazardous events that can affect the safety of the water supply as related to the Licensed Activities; d) an assessment of the risk presented by each hazard and hazardous event. e) the operational and management controls and contingency plans for each hazard and hazardous event identified in Clause 4.2.2(c); f) the monitoring programme referenced in Part 5 that will ensure the requirements of these Regulations are met and that the operational and management controls identified in Clause 4.2.2(e) are effective; g) reporting and auditing requirements for the monitoring programme identified in Clause 4.2.2 (f) and in Part 5 of these Regulations; and h) supporting programmes to improve employee awareness and involvement. 4.3 Review of Drinking Water Safety Plan 4.3.1 A new DWSP of a Licensee must be submitted to the DoE for review at least 60 days before the supply of water is due to start. 4.3.2 Existing Safety Plans must be resubmitted to the DoE for review: a) a minimum of once every 5 Years; b) following substantial changes to the source, Desalination, Transmission, Distribution, storage systems and tankering; and c) following significant operational and/or environmental incidents. 4.3.3 The DoE shall complete a review of a Safety Plan within 60 days from the date of receiving the Plan. 4.3.4 The DoE will identify and report to the Licensee any changes it believes are required to protect public health. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 20 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 4.3.5 Before the supply of water begins, the Licensee must adopt any representations made by the DoE under Clause 4.3.4 and submit a revised DWSP to the DoE. 4.3.6 An assessment of the DWSP arrangements may be conducted as required by the DoE and/or by a person appointed by the DoE for ensuring the DWSP achieves its intended purpose. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 21 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 5. Monitoring of Water Supplies 5.1 Monitoring Programme 5.1.1 Each Year, Licensees shall sample and test each relevant Parameter listed in Schedule 1 of these Regulations to confirm that the quality of the water conforms to the criteria outlined therein. 5.1.2 A Licensee shall determine such number and location of Sampling Points that is representative of the quality of the water supplied by it. 5.1.3 These Sampling Points must be designated within each of the Licensees Plants, Water Supply Zones or Water Tankers as related to the Licensed Activity. 5.1.4 Sampling Points in a Water Supply Zone should give good geographic representation of the water supply system. 5.1.5 Any sampling or analysis done by a Licensee as a condition of a monitoring programme must be done at the Licensee’s expense. 5.2 Sampling Frequency 5.2.1 The sampling frequency shall not be less than the Standard Number of samples as listed in the tables of Schedule 2 in relation to the Parameter in question. 5.2.2 The DoE shall have the discretion to require the Licensee to sample according to the Reduced Number or Increased Number frequency as it finds necessary to do so; otherwise, the Standard Number shall apply. 5.2.3 A Licensee can request from the DoE, after submitting acceptable justification, a Reduced frequency in the annual sampling for one or more Parameters required in its monitoring activities. 5.2.4 The frequency of sampling at the Sampling Points within each Water Supply Zone must be representative of the distribution of the water within that zone. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 22 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 5.2.5 The DoE shall have the discretion to require further sampling at particular Sampling Points in each Water Supply Zone. 5.3 Initial Entries 5.3.1 The monitoring programme details must be outlined by the Licensees in their annual initial entries submission. 5.3.2 The initial entries must contain: a) a sampling schedule programme for the following Year; b) test methods for each of the Parameters included in Schedule 1 of the Regulations; c) the name or identification number of the zone or area, Water Tanker, well field, Desalination Plant, aquifer, reservoir or pumping plant, at which sampling will be performed; d) as relevant, an estimate of the population or volume of water distributed to the zone or the capacity of water tank, aquifer, reservoir, Water Tankers and water Plant; e) details of the water processes used at the Plant; f) any derogation granted under Regulation 8.4 which applies to water supplied in the zone; and g) other relevant information in the initial entries forms outlined in Schedule 3 of the Regulations. 5.3.3 The Licensees shall submit their initial entries to the DoE by 30 September of each Year. 5.4 Data Collection and Reporting 5.4.1 A Licensee shall collate all monitoring and sampling data generated by its monitoring programme. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 23 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 5.4.2 The results of the sampling analyses shall be submitted to the DoE within 30 days of the sample collection date via a web-based portal, electronic format and/or in hard copy as directed by the DoE. 5.4.3 Sampling results that fail to comply with the Regulations must be reported to the DoE in accordance with Regulation 9.1. 5.4.4 The Licensee shall retain records of all sampling and monitoring data for at least twenty (20) Years. 5.5 Sampling and Testing Requirements 5.5.1 The Licensee shall carry out sampling collection and handling in accordance with ISO 5667-5: Guidance on sampling of drinking water from treatment works and piped Distribution Systems. 5.5.2 Sampling of water for Legionella testing shall be carried out by BS 7592: Sampling for Legionella bacteria in water systems (or equivalent). 5.5.3 Licensees must ensure that: a) the sample is representative of the quality of the water at the time of sampling; b) the sampling frequency from the Sampling Points are distributed at equal intervals throughout the Year; c) the sample is not contaminated when being taken or transported; d) the sample is kept at such temperature and in such conditions as will secure that there is no material and quality alteration of the concentration or value for the measurement or observation of which the sample is intended; and e) the sample is analysed as soon as may be practicable after it has been taken: i. by or under the supervision of personnel who are trained, competent and authorised to perform that task; OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 24 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 ii. with the use of such equipment as is suitable for the purpose, and has been validated for performance against Standard Methods and approved for use; and iii. by applying such recognised analytical systems and methods capable of establishing, within acceptable limits of deviation and detection, whether the sample contains concentration or value which contravene the Prescribed Concentration or Value. f) analysis activities shall be conducted in an accredited laboratory according to ISO/IEC 17025 for the required Parameters. 5.5.4 In accordance with Clause 5.5.3 (a), the appropriate physical Parameters outlined in Schedule 1, Table A of the Regulations should be determined on site as they can quickly degrade after sampling. 5.5.5 If a Licensee is unable to determine in this way, ensure that a representative sample is taken and that recommended filling, preservation and holding times are met. 5.5.6 The laboratory must be accredited by an Accreditation Body for all the Parameters outlined in Schedule 1 of the Regulations. 5.5.7 The DoE does not accredit or approve laboratories. 5.5.8 Licensees shall notify the DoE within 3 working days about their laboratories Accreditation status, withdrawal or suspension of Accreditation, or if there is a change in the Accreditation scope. 5.6 Quality Compliance 5.6.1 Prescribed Concentrations or Values will be applied to the Parameters outlined in Tables A to H of Schedule 1. 5.6.2 If an exceedance of the Parameters outlined in Schedule 1, Table F is indicated, a repeat sample should be collected from the original sample location within one working day of the result being known. If the repeat sample OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 25 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 also indicates an exceedance, the Licensee must implement the corrective actions outlined in their DWSP. 5.6.3 Licensees shall notify the interconnected Licensees regarding exceedances in accordance with the notification requirements of the applicable codes. 5.6.4 As soon as a Licensee has reasonable grounds for believing that any source of supply may not satisfy the provisions of Part 3, the Licensee shall take sufficient samples of water to establish whether the water is detrimental to public health, except if such provisions have been derogated by an authorisation given under Regulation 8.4. 5.6.5 When testing for a Parameter not listed in Schedule 1, a Licensee shall take sufficient samples of water within a Plant, Water Supply Zone or from Water Tankers to establish whether the water is wholesome. 5.6.6 Licensees shall report to the DoE water quality related incidents as outlined in the Incident Reporting Regulations. 5.6.7 In reporting water quality incidents, the Licensee must also report any relevant incidents as per the requirements of the ADOSH SF. 5.7 Annual Water Quality Reports 5.7.1 A Licensee shall prepare for the DoE a report for each Year which includes: a) a summary of the water quality compliance with the limits detailed in Schedule 1, process performance indicators and the quantity supplied by it; b) water quality related issues that have affected the regulatory requirements with details on how and why the issues occurred e.g. water quality and sampling frequency, variation due to unplanned maintenance activities, change of sample monitoring frequency of zone and location and security of supply; c) updated risk assessments and control measures to address the issues noted in Clause 5.7.1 (b); OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 26 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 d) the adherence to the sampling frequency requirements in Schedule 2; e) details of any relevant derogation granted under Regulation 8.4; f) overview of the water related projects undertaken; g) chemicals and products that come in contact with drinking water (e.g. trials and regulatory compliance); h) incidents, Consumer complaints including feedback and corrective actions taken; and i) conclusion and challenges including a statement as to the extent to which the water supplied by it complied with these Regulations. 5.7.2 The Licensees shall submit a copy of the annual water quality report to the DoE by 1 March of each Year. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 27 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 6. Chemicals Use in Drinking Water 6.1 Application Process and Requirements 6.1.1 A Licensee shall not apply any substance or product to water, which is to be supplied in accordance with Part 3 of these Regulations unless: a) the DoE has approved the application of that substance or product, and it is applied in accordance with any conditions attached to that approval; and b) the Licensee is completely satisfied that the chemical, substance or product either alone or in combination with other chemicals and compounds will not affect the wholesomeness of the water. 6.1.2 An application checklist and associated guidance are included in Schedule 5. 6.1.3 The application checklist must be submitted with the supporting documents outlined in Schedule 5a. Detailed guidance regarding the application is outlined in Schedules 5b-d. 6.1.4 An initial review of Licensee applications shall be completed by the DoE within 60 days receipt of the application. 6.1.5 Licensees shall have a further 60 days to submit any pending application requirements noted by the DoE, or the application will be considered void. 6.1.6 Any application approval made by the DoE may include such conditions as it considers appropriate. 6.2 Monitoring and Trial Requirements 6.2.1 Upon receiving the application approval from the DoE, the Licensee may proceed with the chemical trial in accordance with the requirements of Schedule 5c of the Regulations. 6.2.2 At the completion of the trial period the Licensee must submit a detailed report regarding the efficacy of the chemical application. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 28 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 6.2.3 The DoE will assess, in coordination with the relevant parties, the report and associated data with a view to providing a no objection to put the chemical into use. 6.3 General Guidance 6.3.1 Licensees must ensure that chemicals operational monitoring, verification and efficiency evaluation are always performed. 6.3.2 Schedule 5d contains detailed guidance regarding risk assessment, HSE, storage, delivery and waste management requirements and further chemicals-related information. 6.4 Revocations and Variations 6.4.1 Subject to Clause 6.1.1, the DoE may revoke an approval it has previously given at any time. Additionally, the DoE may modify any such approval in writing by including conditions or varying existing conditions. 6.4.2 Except for any case in which the DoE is of the opinion that the immediate revocation, modification or prohibition is necessary in the interests of public health, the DoE shall give the Licensee at least 1 months’ notice in writing of its intention to: a) revoke any approval given for the purposes of these Regulations; b) modify any condition; or c) prohibit a Licensee from using any process. 6.5 Application Charges 6.5.1 The DoE may, by notice in writing, require the Licensee who makes an application for an approval under Regulation 6.1 to pay to it a charge which reflects the administrative expenses (excluding the costs of conducting any tests) incurred or likely to be incurred by the DoE in connection with that application. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 29 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 6.5.2 In determining the amount of any charge, the DoE may adopt such methods and principles for its calculation as appear to it to be appropriate. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 30 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 7. Audits and Assessments 7.1 DoE Audit 7.1.1 To ensure compliance with these Regulations the DoE may conduct periodic audits to assess the implementation of the Licensees DWSPs. 7.1.2 The audit may cover analytical arrangements, sampling processes, data quality and reporting. It may also include chemicals used in water treatment, Desalination, Transmission System, Distribution System (piped, non-piped and aquifers), transfer and storage processes for the supply of wholesome water. The audit may: a) review and validate the results of the water submissions; b) review the accuracy and reliability of the data collected by Licensees; c) identify any shortcomings, failures, non-compliance and areas of concern; and d) include other related matters in conjunction with these Regulations. 7.2 Third Party Audit 7.2.1 To establish whether Licensees are complying with their monitoring obligations, the DoE may appoint or request Licensees to appoint a technically competent third-party auditor which may review and/or audit the items outlined in Regulation 7.1. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 31 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 8. Review of DoE Decision 8.1 Application for Review 8.1.1 Any application for enquiry, clarification, or dispute relevant to these Regulations must be made in writing to the DoE and submitted with supporting documents. 8.2 Timescale for Application for Review 8.2.1 The timescale for an application to be reviewed by the DoE is 30 days. 8.2.2 Licensees will be informed in case of any extension of time required for application for review. 8.3 DoE Request for Information 8.3.1 The DoE may request from an Entity making an application for a decision, any information or documentation it considers reasonable and necessary in the circumstances and the Entity must provide such information within the period specified by DoE. 8.4 Derogation of Requirements 8.4.1 The DoE may, upon the written application of a Licensee, authorise a derogation of certain requirements of these Regulations. 8.4.2 Subject to Clauses 8.4.3 and 8.4.4, the DoE may at any time modify or revoke an authorisation (whether the authorisation is expressly given for a specified period) pursuant to Clause 8.3.1 above. 8.4.3 The DoE shall not revoke or modify an authorisation without giving at least 3 months’ notice or, if the holder of the authorisation agrees, at least 6 weeks’ notice by the DoE of its intention to do so. However, the DoE may revoke or modify an authorisation without notice if it appears to the DoE that the immediate revocation or modification of the authorisation is required in the interests of public health. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 32 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 8.4.4 A Licensee on whose application an authorisation has been given under this Part shall notify the DoE as soon as the circumstances which gave rise to the application for the authorisation cease to exist, and, notwithstanding Clause 8.4.3 above, the DoE shall thereupon revoke the authorisation. 8.4.5 Any application for a derogation under Clause 8.4.1 shall provide sufficient information and data to allow the DoE to assess the appropriateness of authorising a derogation together with a risk assessment and mitigation plans. The DoE requires a minimum of 3 months to assess any application made under Clause 8.4.1. 8.4.6 The DoE may require a Licensee who makes an application for a derogation under Clause 8.4.1 to pay a charge which reflects the expenses incurred or likely to be incurred by the DoE in connection with that application. In determining the amount of any charge, the DoE may adopt such methods and principles for its calculation as appear to it to be appropriate and notify the Licensee of the relevant expenses. 8.5 DoE Decision 8.5.1 The DoE shall notify the Entity that made the application of its final decision. 8.5.2 The DoE may: a) make any decision it sees fit in the circumstances; and/or b) issue directions as it sees fit to the Entity that made the application for review and to any third party. 8.5.3 Any decisions or directions issued by DoE are binding on the Entity that made the application for review and any third party stated in these decisions or directions. Failure to comply with decisions or directions issued by DoE under this Part, shall be considered as a failure to comply with these Regulations. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 33 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 9. Failure to Comply with Regulations 9.1 Reporting Failures and Incidents 9.1.1 Any failure to comply with these Regulations or any act that may be considered as a failure to comply with these Regulations must be reported to the DoE. 9.2 Enforcement Procedures 9.2.1 In case of failure to comply with these Regulations, the DoE may issue a written warning notice to the non-complying Entity. 9.2.2 The warning notice shall include: a) the name of the Entity; b) the Regulation which was been violated; c) a tolerance period to comply; and d) the enforcement procedures to be taken against the Entity in case it does not comply with the Regulations within the tolerance period. 9.2.3 Pursuant to Article 66 of Law No. (2), an Entity that fails to comply with these Regulations may be subject to a fine of not less than AED 250,000. 9.2.4 If an Entity fails to comply with these Regulations for a second time, the fine may be doubled. 9.2.5 Without prejudice to Clauses 9.2.3 and 9.2.4 and pursuant to Articles (10) and (11) of Law No. (11) of 2018, an administrative fine of not more than (AED 10,000,000) ten million dirhams may be imposed by DoE on anyone who contravenes the provisions of these Regulations and/or any rules, policies, decisions, derogations, plans, circulars, codes issued thereunder. 9.2.6 The DoE may rectify the violations of these Regulations at the expense of the violator if the latter does not rectify them within the period specified by DoE. Without prejudice to the DoE’s powers under clause 9.5, pursuant to the Table OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 34 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 of Violations and Administrative Penalties issued by the Chairman of the DoE Decision No. (22) of 2020, the DoE may apply further administrative sanctions against violators. 9.2.7 Any grievance, appeal, or request for reconciliation of fines and administrative sanctions issued by the DoE shall be made to the DoE in accordance with the procedures identified in the Rules and Controls of Applying Administrative Violations and Penalties issued by the Chairman of the DoE Decision No. (18) of 2021. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 35 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 10. Governing Law 10.1 Governing Law 10.1.1 These Regulations and the rights and duties of any parties hereunder shall be governed by the Laws of the Emirate of Abu Dhabi and the federal Laws of the UAE as applied by the courts of the Emirate of Abu Dhabi. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 36 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Schedules Schedule 1. Parameters and Limits Schedule 2. Sampling Frequency Schedule 3. Initial Entries Forms Schedule 4. Drinking Water Performance Indices Schedule 5. Chemicals Use in Drinking Water OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 37 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Schedule 1: Parameters and Limits Table A– Physical Parameters Item Parameter Unit of Measurement Concentration or Value (maximum unless otherwise stated) 1 Colour TCU 15 2 Turbidity (i) NTU 4 3 Odour (including hydrogen sulphide) Dilution number Unobjectionable 4 Taste Dilution number Unobjectionable 5 Total dissolved solids (TDS) (ii) mg/l 600 6 Calcium hardness mg/l as CaCO3 200 at 25 ºC 7 Total hardness mg/l as CaCO3 300 at 25 ºC 8 Hydrogen ion (iii) pH value 7 (minimum) 9.2 (maximum) 9 Residual chlorine (iv) mg/l Cl2 0.2 (minimum) 0.5 (maximum) 10 Chlorine Dioxide (iv) mg/l ClO2 0.1 (minimum) 0.4 (maximum) Notes: i. Turbidity should be kept below 1 NTU by Licensees to support effective disinfection. Where this is not practical, turbidity must be always kept below 4 NTU. ii. Licensees shall always target a minimum TDS concentration above 100 mg/l. The TDS k factor shall be calculated using the summation method (anions and cations). iii. pH stability is critical to maintain water quality throughout the water network. Elevated pH ≥8 may progressively contribute to ineffective disinfection and allow the growth of microorganisms in the pipes. iv. Residual chlorine and chlorine dioxide ideal concentrations shall be between 0.2 mg/l to 0.5 mg/l and between 0.1 mg/l and 0.4 mg/l respectively. However, residual chlorine and chlorine dioxide may increase to 1.0 mg/l and 0.7 mg/l respectively or even above for controlling possible bacteriological contamination. v. Licensees shall always target a Langelier Saturation Index (LSI) between 0 and 0.5. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 38 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Item Parameter Unit of Measurement Concentration or Value (maximum unless otherwise stated) 1 Sulphate (SO4) mg/l 250 2 Magnesium (Mg) mg/l 30 3 Sodium (Na) mg/l 150 4 Potassium (K) mg/l 12 5 Chlorides (Cl) mg/l 250 6 Nitrate (NO3) mg/l 50 7 Nitrite (NO2) mg/l 3 8 Ammonium (ammonia and ammonium ions) (NH4) mg/l 0.5 9 Total organic carbon (TOC) (i) mg/l 1 10 Aluminium (Al) mg/l 0.2 11 Iron (Fe) mg/l 0.2 12 Copper (Cu) mg/l 1 13 Zinc (Zn) mg/l 5 14 Phosphorus (P) mg/l 2.2 15 Cyanide mg/l 0.07 Table B - Inorganic Chemical Parameters Notes: i. The observed value of TOC in the network is < 1 mg/l during normal operation and < 2 mg/l in newly commissioned or repaired systems. Any increase over these values requires further investigation. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 39 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Table C - Inorganic Chemical Parameters (mostly trace elements) Item Parameters Unit of Measurement Concentration or Value (maximum unless otherwise stated) 1 Arsenic (As) µg/l 10 2 Cadmium (Cd) µg/l 3 3 Chromium (Cr) µg/l 50 4 Mercury (Hg) µg/l 6 5 Nickel (Ni) µg/l 70 6 Lead (Pb) µg/l 10 7 Antimony (Sb) µg/l 20 8 Selenium (Se) µg/l 40 9 Barium (Ba) µg/l 700 10 Boron (B) µg/l 2,400 11 Manganese (Mn) µg/l 400 12 Fluoride (F) µg/l 1,500 OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 40 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Item Parameter Unit of Measurement Concentration or Value (maximum unless otherwise stated) 1 Endrine µg/l 0.6 2 Lindane µg/l 2 3 Methoxychlor µg/l 20 4 2,4 dichlorophexy acetic acid µg/l 30 5 2,4,5 trichlorophenoxy propionic acid µg/l 9 6 Phenols µg/l 0.5 7 Heptachlor µg/l 0.03 8 Aldrin µg/l 0.03 9 DDT µg/l 1 10 Chlordane µg/l 0.2 11 Dieldrin µg/l 0.03 12 Heptachlor epoxide µg/l 0.03 13 Alachlor µg/l 20 14 1,2-dibromoethane µg/l 0.4 15 1,2-dichloropropane µg/l 40 16 1,3-dichloropropene µg/l 20 17 1,2-dibromo-3 chloropropane µg/l 1 18 Total pesticides (i) µg/l 145 Table D - Miscellaneous Organic Parameters (mostly pesticides) Notes: i. Total pesticides - means the sum of all individual pesticides detected and quantified in the monitoring procedure. Those pesticides can be from the list of individual Parameters in the table above or outside it. Pesticides can be, but are not limited to insecticides, herbicides, fungicides, PCB’s and PCT’s. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 41 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Table E - Organic Parameters Item Parameter Unit of Measurement Concentration or Value (maximum unless otherwise stated) 1 Trichloroethene µg/l 20 2 Tetrachloromethane µg/l 3 3 Tetrachloroethene µg/l 40 4 1,2-Dichloroethane µg/l 30 5 Benzene µg/l 10 6 Benzo(a) pyrene µg/l 0.7 7 Dichloromethane µg/l 20 8 Chlorobenzene µg/l 300 9 1,2-Dichloroethene µg/l 50 10 Toluene µg/l 700 11 1,2-Dichlorobenzene µg/l 1,000 12 1,4-Dichlorobenzene µg/l 300 13 Vinyl Chloride µg/l 0.3 OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 42 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Table F – Microbiological Parameters Notes: i. Legionella1: Cultural method; L. pneumophila; CFU: Colony Forming Unit. Legionella2: Polymerase Chain Reaction method (PCR); GU: Genome Unit; Concentration or value is negative. ii. The concentration for either E.coli, standard method Total coliforms or Enterococci is zero; i.e. must not be detectable in any 100 ml sample. If the presence of either E.coli, Total coliforms or Intestinal Enterococci is indicated, please refer to Clause 5.6.2 of the Regulations. iii. Pseudomonas aeruginosa and sulphite-reducing bacteria testing needs to be conducted at relevant locations in the Distribution System following any Consumer complaints or observations associated with taste, odour and colour. Target should be zero organisms. iv. Under normal conditions cultural methods are followed. However, in cases where suspected detections are identified and immediate confirmations are required, PCR methods or any other appropriate accredited methods shall be used. v. Drinking water shall always be free from algae, mould, parasites, insects and their eggs, larvae, and protozoa (including Amoebae). Item Parameter Unit of Measurement Concentration or Value (maximum unless otherwise stated) 1 Total coliforms Number/100ml 0 2 E.coli or thermotolerant Faecal coliform bacteria Number/100ml 0 3 Intestinal Enterococci Number/100 ml 0 4 Legionella (i)1 CFU/l <1 Legionella (i)2 GU/l Negative OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 43 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Item Parameter Unit of Measurement Concentration or Value (maximum unless otherwise stated) 1 Gross α Bq/l ≤ 0.5 2 Gross ß Bq/l ≤ 1.0 Table G - Radioactive Parameters Notes: i. Compliance with the guideline for radiological quality of drinking water should be assessed, initially, by screening for gross alpha and gross beta activity concentrations. The values for gross alpha and beta noted above are after subtraction of the contribution from potassium-40. ii. If either of these activity concentrations are exceeded, specific radionuclides outlined below should be identified and their activity concentrations determined by the Licensee. Further samples must be collected by the Licensee to confirm exceedances and assess the persistence of the chemical or radionuclide. The exceedances must be investigated and corrective action implemented. Licensees must consult the relevant authority for advice on suitable action. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 44 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Item Parameter Unit of Measurement Concentration or Value (maximum unless otherwise stated) 1 Uranium-238 Bq/l 10 2 Uranium-234 Bq/l 1 3 Thorium-230 Bq/l 1 4 Radium-226 Bq/l 1 5 Lead-210 Bq/l 0.1 6 Polonium-210 Bq/l 0.1 7 Thorium-232 Bq/l 1 8 Radium-228 Bq/l 0.1 9 Thorium-228 Bq/l 1 10 Caesium-134 Bq/l 10 11 Caesium-137 Bq/l 10 12 Strontium-90 Bq/l 10 13 Iodine-131 Bq/l 10 14 Tritium Bq/l 10,000 15 Carbon-14 Bq/l 100 16 Plutonium-239 Bq/l 1 17 Americium-241 Bq/l 1 Notes: If the following additive formula is satisfied, then no further action is required: ∑ Ci/GLi ≤ 1.0 Where: Ci= the measured activity concentration of radionuclide i GL= the guidance level of radionuclide i Occasionally, if the guidance levels are exceeded, national authorities will then need to decide regarding the need to implement remedial measures or to place some restriction on the continued use of the water supply for drinking purposes. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 45 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Table H - Disinfection and DBP’s Parameters Item Parameter Unit of Measurement Concentration or Value (maximum unless otherwise stated) 1 Bromate (i) mg/l 0.01 2 Chlorate mg/l 0.7 3 Chlorite mg/l 0.7 4 Bromoform mg/l 0.1 5 Bromodichloromethane (BDCM) mg/l 0.06 6 Chloroform mg/l 0.3 7 Dibromochloromethane (DBCM) mg/l 0.1 8 THMs (ii) mg/l ≤ 1 Notes: i. Licensees shall always target a bromide ion concentration below 0.05 mg/l. ii. The sum of detected concentration of chloroform, bromodichloromethane (BDCM), dibromochloromethane (DBCM) and bromoform as calculated in the equation below: Total trihalomethanes = C Bromoform PCV Bromoform + C DBCM PCV DBCM + C BDCM PCV BDCM + C Chloroform PVC Chloroform ≤ 1 C = Measured concentration in mg/l PCV = Prescribed Concentration or Value in mg/l OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 46 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Schedule 2: Sampling Frequency Sampling Frequency Requirements Sampling Points Relevant Tables Schedule 1 Schedule 2 Desalination Plant (thermal process e.g. MSF, MED & solar) Table A, B, C, F, G & H Table 3 & 6 Desalination Plant (membrane process including hybrid Desalination e.g. thermal + membrane) Table A, B, C, E, F, G & H Table 3 & 6 Desalination by other process (e.g. atmospheric water recovery) Table A, B, C, E, F, G & H Table 3 & 6 Well fields (ground water) Table A, B, C, D, E, F, G & H Table 4 & 6 Transmission System Table A, B, C, F & H (Table E: for GRP) Table 2 & 6 Distribution System Table A, B, C, E, F, G & H Table 1 & 6 Water Tanker Table A, C & F (Table E: for internal coating) Table 5 OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 47 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Table 1 - Sampling Frequency at Distribution System Water Supply Zones Water Supply Zone or combination of zones Sampling frequency (number per annum) Volume distributed (m3/d) Population supplied Table A Parameter Table B Parameter Reduced Standard Increased Reduced Standard Increased ≤100 ≤500 2 4 8 2 3 4 101-1,000 501-5,000 3 6 12 2 3 4 1,001-2,000 5,001-10,000 3 6 12 3 4 6 2,001-4,000 10,001-20,000 6 12 24 3 4 6 4,001-10,000 20,001-50,000 12 24 36 6 8 12 10,001-20,000 50,001-100,000 12 24 36 6 8 24 20,001-30,000 100,001-150,000 18 36 48 6 12 24 >30,000 >150,000 18 48 72 8 12 36 Volume distributed (m3/d) Population supplied Table C Parameter Table E Parameter Reduced Standard Increased Reduced Standard Increased ≤1,000 ≤5000 2 3 4 2 3 4 1,001-10,000 5,001-50,000 3 4 6 2 3 4 10,001-30,000 50,001-150,000 4 6 8 3 4 6 >30,000 >150,000 6 8 10 4 6 8 Volume distributed (m3/d) Population supplied Table F Parameter (i) Legionella Parameter Reduced Standard Increased Reduced Standard Increased ≤2,000 ≤10,000 6 12 24 1 2 4 2,001-10,000 10,001-50,000 12 24 48 2 4 8 10,001-30,000 50,001-150,000 18 36 72 4 8 16 >30,000 >150,000 36 48 72 6 12 24 Volume distributed (m3/d) Population supplied Table G Parameter Table H Parameter Reduced Standard Increased Reduced Standard Increased ≤2,000 ≤10,000 1 2 3 3 6 12 2,001-10,000 10,001-50,000 1 2 3 6 9 24 >10,000 >50,000 1 2 3 9 12 48 Notes: i. For all Table F Parameters, except Legionella. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 48 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Table 2 - Sampling Frequency at Transmission System Water Supply Zones Water pumping capacity Sampling frequency (number per annum) Capacity (m3/d) Table A Parameter Table B Parameter Reduced Standard Increased Reduced Standard Increased ≤4,000 2 4 8 2 4 8 4,001-30,000 3 6 12 3 6 12 30,001-100,000 6 12 24 6 12 24 100,001-150,000 12 24 36 6 12 24 >150,000 24 36 48 12 24 36 Capacity (m3/d) Table C Parameter Table E Parameter (i) Reduced Standard Increased Reduced Standard Increased ≤4,000 2 4 8 1 2 3 4,001-10,000 2 4 8 2 3 4 10,001-30,000 3 6 12 2 3 4 30,001-100,000 3 6 12 3 4 6 100,001-150,000 6 12 24 3 4 6 >150,000 9 12 24 4 6 8 Capacity (m3/d) Table F Parameter (ii) Legionella Parameter Reduced Standard Increased Reduced Standard Increased ≤4,000 2 4 8 1 2 4 4,001-20,000 3 6 12 2 3 6 20,001-100,000 6 12 24 3 4 8 100,001-150,000 12 24 48 4 8 16 >150,000 18 36 72 5 10 18 Volume distributed (m3/d) Population supplied Table H Parameter Reduced Standard Increased ≤10,000 ≤10,000 3 6 12 10,001-100,000 10,001-50,000 6 9 24 >100,000 >50,000 9 12 48 Notes: i. Table E Sampling is for GRP. ii. For all Table F Parameters, except Legionella. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 49 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Table 3 - Sampling Frequency at Desalination Plants Plant capacity Sampling frequency (number per annum) Capacity (m3/d) Table A Parameter Table B Parameter Reduced Standard Increased Reduced Standard Increased ≤1,000 12 30 48 2 4 8 1,001-10,000 15 36 60 3 6 12 10,001-20,000 30 60 240 3 6 12 20,001-50,000 60 120 240 6 12 24 50,001-100,000 60 180 240 6 12 24 100,001-200,000 180 240 360 12 24 48 200,001-300,000 240 360 720 12 24 48 >300,000 240 360 720 18 36 72 Capacity (m3/d) Table C Parameter Table E Parameter (i) Reduced Standard Increased Reduced Standard Increased ≤50,000 2 4 8 2 4 8 50,001-300,000 3 6 9 3 6 12 >300,000 6 9 12 6 12 24 Capacity (m3/d) Table F Parameter (ii) Legionella Parameter Reduced Standard Increased Reduced Standard Increased ≤20,000 2 4 8 1 2 4 20,001-200,000 3 6 12 2 3 6 200,001-300,000 5 12 20 3 5 10 300,001-500,000 12 24 40 4 8 12 >500,000 24 36 48 6 12 24 Capacity (m3/d) Table G Parameter Table H Parameter Reduced Standard Increased Reduced Standard Increased ≤1,000 1 2 3 2 4 8 1,000-20,000 1 2 3 6 12 24 20,001-200,000 1 2 3 9 18 36 >200,000 1 2 3 12 24 48 Notes: i. Table E Sampling is for Water Desalination by membrane process including hybrid Desalination (e.g. thermal + membrane). ii. For all Table F Parameters, except Legionella. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 50 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Table 4 - Sampling Frequency at Well Field Water Supply Zones (Ground Water) Production capacity Sampling frequency (number per annum) Capacity (m3/d) Table A Parameter Table B Parameter Reduced Standard Increased Reduced Standard Increased ≤100 2 4 8 2 4 8 101-1,000 3 6 12 2 4 8 1,001-2,000 6 12 24 2 4 8 2,001-4,000 12 24 48 3 6 12 4,001-10,000 30 60 120 3 6 12 >10,000 30 60 120 6 12 24 Capacity (m3/d) Table C Parameter Table D Parameter Reduced Standard Increased Reduced Standard Increased ≤1,000 2 4 8 2 3 4 1,001-4,000 3 6 12 3 6 12 4,001-10,000 6 12 24 6 12 24 >10,000 12 24 36 6 12 24 Capacity (m3/d) Table E Parameter Table F Parameter (i) Reduced Standard Increased Reduced Standard Increased ≤2,000 2 4 8 2 4 8 2,001-4,000 4 6 12 3 6 12 4,001-10,000 4 6 12 6 12 24 >10,000 8 12 24 12 24 48 Capacity (m3/d) Legionella Parameter Table G Parameter Reduced Standard Increased Reduced Standard Increased ≤2,000 1 2 4 1 2 3 2,001-4,000 2 3 6 1 2 3 4,001-10,000 4 6 12 1 2 3 >10,000 5 8 16 1 2 3 Capacity (m3/d) Table H Parameter Reduced Standard Increased ≤1,000 6 12 24 >1,000 12 24 48 Notes: i. For all Table F Parameters, except Legionella. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 51 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Table 5 - Sampling Frequency for Water Tankers Tanker’s capacity / size Sampling frequency (number per annum) Capacity Table A Parameter Table C Parameter Reduced Standard Increased Reduced Standard Increased For all sizes 1 2 4 1 2 4 Capacity Table E (i) Parameter Table F Parameter (ii) Reduced Standard Increased Reduced Standard Increased For all sizes 1 2 4 1 2 4 Capacity Legionella Parameter Reduced Standard Increased For all sizes 1 2 4 Notes: i. Tankers internally coated (paint) are required to test for total organic compounds (TOC) and relevant Parameters from Table E (1, 2-Dichloroethane, Toluene, 1, 2- Dichlorobenzene, 1, 4- Dichlorobenzene, Vinyl Chloride). ii. For all Table F Parameters, except Legionella. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 52 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Table 6 - Sampling Frequency for Water Storage Tanks, Reservoirs and Water Towers Per water body Sampling frequency (number per annum) Capacity (m3) Table A Parameter Table F Parameter (i) Reduced Standard Increased Reduced Standard Increased <2,000 2 2 8 2 2 8 2,000-10,000 2 2 8 2 2 8 10,001-50,000 2 3 9 2 3 9 50,001-200,000 3 4 9 3 4 9 >200,000 4 6 12 4 6 12 Capacity (m3) Legionella Parameter Reduced Standard Increased <2,000 2 2 8 2,000-10,000 2 2 8 10,001-50,000 2 4 9 50,001-200,000 3 4 9 >200,000 4 6 12 Notes: i. For all Table F Parameters, except Legionella. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 53 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Schedule 3: Initial Entries Forms Form A - Water Desalination Licensee Desalination Plant Name of Licensee Site location Total production capacity Desalination technology and type Number of Desalination units Year of Desalination units construction/ refurbishment Desalination unit ID number Desalination unit Production capacity Remineralisation plant name and description Year of remineralisation plant construction/ refurbishment Sample point ID (Identification number) Chemical injection points Remarks Storage capacity Number of storage tanks and name Site location Storage tank type Storage tank capacity Material of construction and internal coating Sample point ID (before and/ or after storage) (Identification number) Chemical injection points Remarks (e.g. chlorine contact time, residence and retention times) Testing method (according to the sampling) testing)criteria table) Test method No. Parameter Name of test method Method standard Description Internal or external lab (name of lab) OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 54 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Test Accreditation Time (time required from sampling to test result made readily available) Remarks (e.g. instant testing availability) Sampling Testing Criteria Table (Daily Basis) Month/ day Regulations Table Sampling Point & Description Total no. of samples Notes: i. Please attach process flow diagram/ schematic of the process and remineralisation and Sampling Points location. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 55 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Form B – System Operator / Distribution Operator Desalination Plant (i) Name of Licensee Site location Total production capacity Desalination technology and type Number of Desalination units Year of Desalination units construction/ refurbishment Desalination Unit ID number Desalination unit Production capacity Remineralisation plant name and description Year of remineralisation plant construction/ refurbishment Sample point ID (Identification number) Chemical injection points Remarks Site information Region ID Site and zone ID Site and zone description Site location Volume (m3/d) Population Annual frequency plan Chemical injection points Remarks Storage capacity Number of storage tanks and name Site location Storage tank type Storage tank capacity Material of construction and internal coating Sample point ID (before and/ or after storage) (Identification number) Chemical injection points Remarks (e.g. chlorine contact time, residence and retention times) OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 56 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Testing method (according to the sampling testing criteria table) Test method No. Parameter Name of test method Method standard Description Internal or external lab (name of lab) Test Accreditation Time (time required from sampling to test results made readily available) Remarks (e.g. instant testing availability) Sampling Testing Criteria Table (Daily Basis) Month/ day Regulations Table Sampling Point & description Total no. of samples Notes: i. To be updated if Desalination Plant is available. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 57 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Schedule 4: Drinking Water Performance Indices Distribution Operator Index I - Disinfection & DBP Index (DCI) according to Table 1 of Schedule 2 Parameter Required tests according to Schedule 2 Done Failed Passed Residual Chlorine Chlorine Dioxide Nitrate Nitrite Total Coliforms E.Coli Intestinal Enterococci Legionella Bromate Chlorate Chlorite THM’s Total II - Reservoirs Integrity Index (RII) according to Table 6 of Schedule 2 Parameter Required tests according to Schedule 2 Done Failed Passed Residual Chlorine Chlorine Dioxide Total Coliforms E.Coli Intestinal Enterococci Legionella Total III - Distribution Maintenance Index (DMI) according to Table 1 of Schedule 2 Parameter Required tests according to Schedule 2 Done Failed Passed Colour Turbidity Taste Odour TDS Calcium Hardness OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 58 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Total Hardness pH TOC Aluminium Iron Copper Cyanide Arsenic Cadmium Chromium Mercury Selenium Antimony Lead Barium Boron Manganese Fluoride Trichloroethene Tetrachloromethane Tetrachloroethene 1,2-Dichloroethane Benzene Benzo(a) pyrene Vinyl Chloride Total OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 59 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 System Operator Index I - Disinfection & DBP Control Index (DCI) according to Table 2 of Schedule 2 Parameter Required tests according to Schedule 2 Done Failed Passed Residual Chlorine Chlorine Dioxide Nitrate Nitrite Total Coliforms E.Coli Intestinal Enterococci Legionella Bromate Chlorate Chlorite THM’s Total II - Reservoirs Integrity Index (RII) according to Table 6 of Schedule 2 Parameter Required tests according to Schedule 2 Done Failed Passed Residual Chlorine Chlorine Dioxide Total Coliforms E.Coli Intestinal Enterococci Legionella Total III – Transmission Maintenance Index (TMI) according to Table 2 of Schedule 2 Parameter Required tests according to Schedule 2 Done Failed Passed Colour Turbidity Taste Odour TDS Calcium Hardness Total Hardness pH TOC Aluminium OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 60 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Iron Copper Cyanide Arsenic Cadmium Chromium Mercury Selenium Antimony Lead Barium Boron Manganese Fluoride Trichloroethene Tetrachloromethane Tetrachloroethene 1,2-Dichloroethane Benzene Benzo(a) pyrene Vinyl Chloride Trichloroethene Tetrachloromethane Total Notes: i. Table E Parameters to be included for GRP. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 61 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Desalination Licensee Index I - Disinfection & DBP Control Index (DCI) according to Table 3 of Schedule 2 Parameter Required tests according to Schedule 2 Done Failed Passed Residual Chlorine Chlorine Dioxide Nitrate Nitrite Total Coliforms E.Coli Intestinal Enterococci Legionella Bromate Chlorate Chlorite THM’s Total II - Reservoirs Integrity Index (RII) according to Table 6 of Schedule 2 Parameter Required tests according to Schedule 2 Done Failed Passed Residual Chlorine Chlorine Dioxide Total Coliforms E.Coli Intestinal Enterococci Legionella Total III - Production Maintenance Index (PMI) according to Table 3 of Schedule 2 Parameter Required tests according to Schedule 2 Done Failed Passed Colour Turbidity Taste Odour TDS Calcium Hardness Total Hardness pH TOC Aluminium OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 62 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Iron Copper Cyanide Arsenic Cadmium Chromium Mercury Selenium Antimony Lead Barium Boron Manganese Fluoride Total Notes: i. Table E Parameters to be included for Water Desalination by membrane process including hybrid Desalination (e.g. thermal + membrane). OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 63 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Schedule 5: Chemicals Use in Drinking Water Schedule 5a: Checklist of the Requirements for Chemicals Application Notes: i. The checklist contains the documents required during the initial phase of the chemicals application process. ii. Please refer to Schedules 5 (b-d) for detailed Licensee obligations. 1. General Y/N i. Formal correspondence addressed to the DoE about the proposed chemical or substance. ii. Subject matter expert to be identified as focal point of contact for technical discussions and follow up. 2. Legal and Compliance Y/N i. A statement that to the best of the Licensee’s knowledge, the Licensee is satisfied that the chemical and its by-products alone or in combination with any other chemicals and compounds will not affect the wholesomeness of the water. 3. Licensees & Stakeholders Y/N i. No objection Letter from EWEC (TRANSCO to be included in the correspondence). ii. No objection Letter from relevant Environmental authority/ Entity for Licensees premises located outside the Emirate of Abu Dhabi. 4. Certifications and Technical Information Y/N i. Shelf-life certificate. ii. Certificate of Analysis. iii. Certification that the chemical is used for wholesome water applications. iv. Valid contact details of references. v. Certificate of chemical application ratified by DoE Licensee if applicable. vi. Manufacturing, storage, and delivery certifications. vii. Quality Management Systems certified by an independent Accreditation Body. viii. (M)SDS. ix. Technical Information. 5. Chemical analysis Y/N i. Sampling analysis of the proposed chemical from an accredited laboratory. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 64 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Schedule 5b: Chemicals Application Process - Licensee Obligation Guideline Licensee Obligation Licensee Obligation Guideline Material Change i. In the material change notification, the Licensee is required to submit the information as set out in this table to the DoE. ii. Material change is limited to chemicals used in wholesome water applications. iii. From time to time, the DoE may publish a chemical guideline (e.g. ledger summary list of chemicals that had previously been approved by it) for the benefit of the Licensees. The Licensee is still required to inform the DoE prior to conducting a material change from the ledger summary. The chemical guideline is confidential and must not be circulated, reproduced, transmitted, in any form without the prior permission of the DoE. iv. A material change involves, but is not limited to: o Chemicals (chemical, material and product) that come in contact with water in the Desalination Plant, Transmission System, Distribution System (piped, non-piped and aquifers), storage, transfer and supply. o Modifying the chemical dosage rate/ consumption beyond the limits transcribed in P(W)PA’s and/ or any other certificate(s) or agreement, documents and correspondence(s). o Modifying the chemical physical and chemical properties transcribed in certificate(s), toxicology profile information, MSDS and/ or any other certificate(s), submission(s) and document(s) changes with or without the manufacturer notifying the certification body. o Chemical withdrawn permanently or temporarily due to operational and/ or quality or any other issues. o Change of supplier/ commercial name, information, and brand and/ or change of origin of manufacturer. o Emergency state of affairs. A monitoring period will be set by the DoE. o Any other reason requested by the DoE. Legal and Compliance i. A statement that to the best of the Licensee’s knowledge, the Licensee is satisfied that the chemical and its by-products alone or in combination with any other chemicals and compounds will not affect the wholesomeness of the water. ii. Complying with the Regulations does not relieve Licensees from their responsibilities towards the safe use and handling of the chemical and compliance with all applicable laws, codes, regulations, guides and standards. Licensees & Stakeholders i. EWEC o Licensees need to obtain any necessary clearance on contractual matters with EWEC as the P(W)PA’s contain requirements and obligations regarding the use of these chemicals. ii. Non EWEC Licensees o Licensees who did not enter into a ratified contractual agreement with EWEC for water and power production, supply and connection to the OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 65 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Transmission/ Distribution Systems (for example self-supply Licensee), are exempted from EWEC no objection. They are still obliged to submit no objection from the relevant authorities/ Entities. iii. Licensees premises located outside the Emirate of Abu Dhabi o Engage with pertinent environmental/ municipal Entity to comply with all their legally binding and obligatory conditions. iv. Notes o The DoE, EWEC and any other party as declared by the DoE to be kept in the loop in all correspondences regarding that matter. o Licensee to notify the environmental and/ or municipal Entity outside the Emirate of Abu Dhabi with its intention to use chemical and acquire all the necessary approvals and conform to all their legally binding and obligatory conditions. Certifications and Technical Information i. Certification o The certificate must demonstrate that the chemical has been tested to confirm compliance with defined standards and certified to be of suitable quality and type to be used in wholesome water applications. o Consideration of process and local conditions. o The certification body must demonstrate a process of accrediting and auditing (e.g. manufacturing, storage, delivery) a chemical. Such Accreditation must include random site visits by the certification body, relevant regulatory agency and, if authorized, the relevant water authority. o The DoE may request the certification body audit report of the chemical manufacturer/ supplier. o The certification must demonstrate that the chemical used or associated by products do not pose a risk to health. o Some chemicals may not require certification but requires impurity tests. o Attestation of the chemical document by UAE Embassy and/ or any other Embassy as instructed by DoE may be required. o If the raw material(s) and not the chemical brand name is transcribed in the certification(s), the Licensee to confirm its acceptance and satisfaction of the chemical. o The Licensee must not exceed the dosage rate transcribed in the certification. If the Licensee wishes to exceed the dosage, they must notify the DoE with justifications where necessary, prior to use. o If the chemical is no longer certified by certification body and/ or any other approved/ relevant certificates, Licensee to notify the DoE immediately and provide alternative certificates if available, otherwise the product will be deemed null and void unless stated otherwise by the DoE. o If the chemical information changes, for example the product name and the formula of the chemical transcribed in the certificates and/ or any other approved/ relevant certificate(s) and submissions, new certificate(s) and/ or document(s) must be issued and submitted OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 66 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 immediately to the DoE, otherwise the product will be deemed null and void unless stated otherwise by the DoE. o If the chemical manufacturing facility changes the Licensees must notify the DoE immediately, otherwise the product will be deemed null and void unless stated otherwise by the DoE. ii. Performance (Manufacturer and Supplier) o The provision of chemical performance suitability by a recognized and creditable agency will be an advantage. Certificates of chemical trials and performance approvals by Plants or research Entities with preference to Entities located in UAE/ GCC. Best available peer reviewed science and supporting studies performed in accordance with sound and objective scientific practices. o Performance authentication by DoE Licensee and/ or Entity. o Chemical must comply with the operation, process and treatment technique of Licensee. o Ensure contact details of references have been verified and are up to date and authentic. iii. Technical Information o Registered Name, Brand Name and Trademark. o Description, chemical formula, structure, properties, reactivity, thermal stability, application, dose Level, certificates, storage, materials, shipping and handling and HSE. o Dosage depends on and not limited to characteristic and chemical composition of water and physical factors like water temperature and mixing conditions. iv. (M)SDS & Shelf Life o A typical (M)SDS may include hazards identification, CAS registry number, composition/ ingredient information, specific impurity levels, maximum contaminant levels, solids content, first aid measures, firefighting measures, accidental release measures, handling and storage, exposure controls, personal protection, physical and chemical properties, stability and reactivity, toxicological information, ecological information, disposal considerations, transport information, regulatory information, other information, health risks (quantifiable and non- quantifiable), reaction with material of construction and type of flow. o Shelf-life certificate. Chemical Analysis i. Analysis and Testing o Only chemical analysis certificate from accredited laboratory is accepted. o Where Accreditation is not available the DoE shall consider alternative laboratory analyses on a case-by-case basis. o Ensure Licensee capability of managing analytical testing of chemicals as far as practicable. o Analysis for chemicals and products that come in contact with drinking water to be conducted at least once per Year and as and when required by the DoE. o The test Parameters and frequency to be discussed and agreed with the DoE. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 67 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Schedule 5c: Trial, Monitoring and Documentation Requirements Licensee Obligation Licensee Obligation Guideline General Monitoring i. A quality control procedure to manage and monitor chemicals and products that come in contact with drinking water must be underpinned by the applicable water quality compliance, operational monitoring and testing. The monitoring must cover all modes of operation e.g. trial, operation and emergency. Chemicals like chlorine and coagulants must have multiple check and monitoring systems for feed rate and concentration. ii. New disinfection processes or chemicals other than chlorine shall be subject to the same conditions of this Part and, where approval is granted by the DoE, they shall be monitored according to the same sampling frequency of chlorine. iii. Licensees are advocated to establish their own performance targets to determine how the chemicals will achieve those targets. Where chemicals are used for example for disinfection, the disinfection efficacy should never be compromised by attempts to meet standards for DBP’s. However, standards for DBP’s are not as high priority as other contaminants such as arsenic. Chemicals effectiveness must be monitored for example using performance targets of turbidity and pH in determining the disinfection efficacy. The efficiency of the chemical process application must be verified. iv. Water quality compliance and operational monitoring encapsulates measurements and observations to assess whether the critical components of the pertinent regulations, codes, guides, laws and documents are operating properly. v. Appropriate chemical feed equipment to be selected. vi. Verify that best risk management, assessment and control procedures and techniques of risk prevention are effective and correctly implemented. vii. Long-term monitoring and testing procedures to be applied to chemicals and materials to assess their contribution to drinking water exposure. Trial i. The water quality monitoring program is required to be implemented. Tables, Parameters and frequency of tests to be monitored are to be submitted to the DoE and the relevant parties and agreed upon in advance of such programme. ii. Water quality samples to be verified by accredited laboratory at least three times during the duration of the trial (initial phase; mid-term and final phase) and/ or when deemed necessary as determined in coordination with DoE technical team. iii. In some cases, the trial may have to cover different conditions e.g. weather and seasonal variations. iv. For material change using a chemical that is currently used by DoE Licensee, the trial period shall be no less than one calendar month (30 days). OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 68 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 v. For material change using a chemical that is not currently used by DoE Licensee, the trial period shall be no less than three calendar months (90 days). vi. Pre-trial baseline data of no less than six months to be provided to the DoE and the relevant parties. vii. The report subject matter, structure and content to be agreed with DoE. The comprehensive technical report must include the performance calculations, its calculation Parameters and methodology for specified time before and during (after the trial if deemed necessary) the trial/ use period. Factors that affect the performance of the chemical or process must be accounted for. The trial data and baseline data to be included in the report. The gap between the baseline data and trial data must not exceed 5 days, otherwise a justification must be submitted. viii. Throughout the review process the DoE will only liaise with the Licensee or Licensee representative as a focal point of correspondence and will not engage directly with chemical manufacturer/ supplier unless deemed necessary. Documentation i. All records and information (for e.g. and not limited to data, reports, exemptions, variance, submissions, communications, surveys) conducted by the Licensee and/ or third party to be kept for a period no less than 20 Years from the date of chemical usage. ii. Ensure proper data handling and reporting procedures are followed (for e.g. quality, operational). OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 69 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 Schedule 5d: Chemicals Application Process - Licensee Obligation General Guideline Licensee Obligation Licensee Obligation Guideline Other Information i. The Licensee should only consider appropriate chemicals for use accounting for and not limited to best technology, treatment techniques and any other means to ensure maintaining the Regulations compliance. Timeline i. Once the material change is submitted to the DoE, all regulatory requirements must to be shared by the Licensee within 60 days. ii. Except for any case in which the DoE is of the opinion that the trial must start immediately (e.g., emergency), Licensee to start the trial within 60 days from the receipt of DoE no objection letter. iii. Licensee to share the trial data within 30 days of the trial completion date. iv. Failure to comply with the process timelines transcribed above, shall result in the application deemed void. v. The process timelines transcribed above may be extended subject to provision of appropriate justification by the Licensee. Security of Supply i. Licensee to ensure security of supply by using BCM best practices. ii. Ensure access for relevant personnel, vehicles and materials is always provided. Risk Assessment i. Licensee to encapsulate all pertinent hazards associated with chemical in the DWSP to assess the risks and optimise risk management. A robust system must include a process to mitigate hazards. ii. Must take into consideration the chemical potential to interact with any other added and existing chemicals and compounds. iii. Must take into consideration that the chemical concentration may vary in the Desalination, Transmission, Distribution, storage and tankering System. iv. Ensure management and control of chemicals risks are evaluated, implemented and monitored. v. Risk control measures and specifications adopted for chemicals and their residuals must account for interactions with other chemicals and compounds, and control of under/ overdosing. vi. Licensee to inspect and authenticate the chemicals and products that come in contact with water. vii. If a chemical dose has exceeded the limits transcribed in the certification(s) and set by the Licensees, the Licensee must inform the DoE immediately. The Licensee must ensure to mitigate the risk and take appropriate action to ensure compliance. viii. All risks and exceedances associated with the chemical use must be recorded including all monitoring results, actions taken by Licensee and outcomes. ix. Noncarcinogen risk assessment to include and not be limited to point of departure, uncertainty factors, exposure assumptions and relative source contribution. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 70 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 x. Carcinogen risk assessment encapsulates and not be limited to non- threshold versus threshold assumption, examination of cancer risk and health-based drinking water concentration. HSE, Storage, Delivery & Waste Management i. Maintain a “Responsible Care” culture regarding the HSE and all applicable compliance with laws, codes, regulations, policies, guides and standards. ii. Ensure Fire Fighting and Gas detector systems are in place, operational and well maintained. iii. Ensure safety and wellbeing of staff and contractors handling chemical and secure safe storage (dry/ wet). iv. Ensure no contamination of the chemical during or before transport and storage. v. Develop and implement a chemical delivery procedure to ensure timely delivery of chemicals. vi. Ensure compliance with safety, corrosion and disposal requirements. vii. Ensure unsafe dosage of chemicals is controlled. viii. Ensure safe and appropriate storage to reduce the risk of factors like elevated temperatures, cross contamination, toxic atmospheres and chemical contact. OPEN WATER QUALITY REGULATIONS 2025 Document no .DoE/PD/R03/001 Version no. 1 Effective Date: 01/01/2025 Page 71 of 71 This document is in copy right and contains valuable and proprietary information. No part of this document may be reproduced in any form or by any means without the prior permission and authorization of the Department of Energy (DoE), Abu Dhabi. DoE-QMS-XF-03 Rev.0 This page is left intentionally blank