Standards and reporting
ESRS E3 water
ESRS E3 concerns water information whose meaning depends on the site, activity and measurement boundary rather than a single unexplained group total.
What does revised ESRS E3 cover?
Revised E3 addresses water use, including withdrawal, consumption, discharge and water stored ESRS E3 paragraph 6.
Module 01 / 03
Activity
Identify how the relevant operation uses water.
Module 02 / 03
Location
Retain the site and relationship context.
Module 03 / 03
Information
Explain the selected measure and its limits.
Read the detailed guidance and evidence
The revised standard is titled Water rather than the original Water and marine resources, so old labels should not be assumed to describe the current reporting structure Revised E3 scope Original ESRS E3.
The ESRS overview explains the wider family.
What should the reporting basis record?
Identify the standard version and financial year before reusing a water worksheet because revised ESRS has specified FY2026 choices and FY2027 application Articles 2–3.
| Record | Useful evidence | Review question |
|---|---|---|
| Version | Published instrument and selected basis. | Are references from the correct edition? |
| Period | Financial-year start and source dates. | Do the measures represent the reporting period? |
| Scope | Entity or group reporting decision. | Is the reporting population established? |
| Historic file | Earlier definitions and methods. | Can changes be explained? |
Read the detailed guidance and evidence
The revised E3 structure ends at E3-4 rather than retaining the original E3-5 anticipated-financial-effects requirement ESRS E3 contents Original E3.
Who reports remains a separate legal-route decision under the directive and applicable national measures Directive 2026/470.
Why does the water question begin with the matter?
Determine the material topic or sub-topic and then the material information needed, rather than collecting every possible water measure ESRS 1 paragraphs 25–30.
Module 01 / 03
Impact
Describe a relevant effect on people or environment.
Module 02 / 03
Financial
Describe a relevant dependency, risk or opportunity.
Module 03 / 03
Selection
Retain what information answers the material matter.
Read the detailed guidance and evidence
The financial materiality guide can support a dependency pathway without making it identical to an impact conclusion.
Historical IG1 remains non-authoritative guidance for the 2023 standards rather than a replacement for the revised materiality provisions IG1 disclaimer EFRAG guidance status.
Which water quantities must remain understandable?
A useful file distinguishes the water-use quantities and the source population rather than treating every meter reading as the same measure.
| Record | Useful evidence | Review question |
|---|---|---|
| Withdrawal record | Water entering the relevant activity. | What source and boundary does it cover? |
| Consumption record | The basis of the selected consumption measure. | Does it mean the same thing as the source input? |
| Discharge record | Water leaving through the recorded route. | Is quantity being confused with pollution information? |
| Storage record | The stock or change being described. | Does the date match the intended meaning? |
Read the detailed guidance and evidence
State the actual definition used and retain the calculation supporting it instead of relying on a familiar column label.
A coherent record should let another reviewer identify which question a quantity answers.
What does location add to the review?
Water information needs a clear activity and location context so an aggregate does not hide the matter being explained.
Module 01 / 03
Source
Identify the evidence serving the activity.
Module 02 / 03
Use
Describe the relevant process or service.
Module 03 / 03
Boundary
Explain what the measure includes and excludes.
Read the detailed guidance and evidence
In the fictional Fenwick Ceramics case, a shared meter serves both a production area and an activity outside the selected reporting population.
The example is invented and does not establish the correct allocation or materiality conclusion for any real site.
Its first review question is which part of the measured water supports the proposed reporting answer.
How should the fictional shared-meter problem be handled?
Retain the original reading and the allocation assumptions rather than presenting an estimated split as directly measured information.
| Record | Useful evidence | Review question |
|---|---|---|
| Meter record | A shared quantity with a documented period. | Which activities are included? |
| Allocation | A proposed basis for splitting the reading. | What evidence supports that basis? |
| Uncertainty | A limitation in the available information. | Could the proposed precision mislead? |
| Narrative | A claim about a consumption movement. | Does the source represent the same population each year? |
Read the detailed guidance and evidence
Fenwick’s reviewer keeps the raw reading, the proposed adjustment and the selected output as separate records.
An unresolved allocation remains a review question rather than being silently rounded into a confident result.
How should water policies and actions be presented?
Connect relevant policy, action, metric and target information to the material water matter rather than treating a generic policy as a complete answer ESRS 1 paragraph 29 and ESRS 2 GDR requirements.
Module 01 / 03
Commitment
Identify what the stated policy covers.
Module 02 / 03
Action
Distinguish completed changes from proposals.
Module 03 / 03
Evaluation
Explain what evidence would support the intended result.
Read the detailed guidance and evidence
Fenwick’s fictional recycling-loop proposal is kept separate from evidence that the loop is installed or operating.
A description of intended benefit does not by itself demonstrate a measured reduction.
The reporting file should preserve the link between the action being discussed and the quantity used to evaluate it.
How does E3 connect with pollution reporting?
Water use and pollution of water are distinct reporting questions even where they relate to the same process Revised E3 scope Revised E2 scope.
| Record | Useful evidence | Review question |
|---|---|---|
| Water-use file | Quantities and boundaries. | What resource-use question is answered? |
| Pollution file | Pollution-related evidence. | Is discharge quantity being treated as proof of pollutant content? |
| Common record | Site and process information. | Which information can be reused? |
| Separate decision | Materiality and information selected. | Why is each answer relevant? |
Read the detailed guidance and evidence
The ESRS E2 guide develops pollution evidence.
The revised framework also separates the circularity of resource inflows, including marine resources, into E5 rather than importing the older E3 title unchanged ESRS E3 paragraph 9(d).
What should a period-on-period comparison explain?
Compare the activity, source boundary and method before calling a movement an improvement.
Module 01 / 03
Population
Identify operational changes affecting the measure.
Module 02 / 03
Method
Retain any changed allocation or calculation.
Module 03 / 03
Claim
Narrow the wording to the result actually supported.
Read the detailed guidance and evidence
Fenwick’s fictional group total falls after the shared-meter boundary is changed, so the reviewer does not automatically describe the change as operational efficiency.
The reporting principles guide explains how clarity, context and verifiable evidence support a better narrative.
The same source file can support more than one output without making those outputs equivalent.
How should a water datapoint register be used?
Use supporting resources to navigate the requirements while retaining the undertaking’s materiality and evidence decisions EFRAG explanatory note, paragraph 1.
| Record | Useful evidence | Review question |
|---|---|---|
| Requirement | Version and relevant paragraph. | Is this the selected reporting basis? |
| Information | The specific material answer. | Has a topic selection become automatic full collection? |
| Source | Reading, calculation and limitations. | Can the answer be reproduced? |
| Output | Reviewed result and location. | Does the report match the file? |
Read the detailed guidance and evidence
The draft list is a human navigation resource rather than a universal company checklist EFRAG draft list release.
The ESRS datapoints guide explains the wider distinction.
Can a reviewer reconcile the shared-meter adjustment?
A useful demonstration follows a source reading through allocation, review and disclosure rather than showing only a total on a dashboard.
Module 01 / 03
Raw reading
Preserve the original shared-meter quantity, dates and included activities as the unadjusted source.
Module 02 / 03
Allocation
Show the proposed split, its evidence and any residual amount rather than hiding the adjustment.
Module 03 / 03
Reported measure
Retain the selected output and the reason it answers withdrawal, consumption or another defined question.
Read the detailed guidance and evidence
The draft XBRL taxonomy supports technical representation and does not make digital tagging mandatory at this stage EFRAG taxonomy release.
A technically valid field cannot decide whether a shared-meter allocation is supported.
Ask for a change demonstration so a new reading does not erase the earlier basis.
Fenwick’s fictional reviewer should be able to reconcile the selected quantity to the shared source and identify the part still awaiting an allocation decision.
What should a water evidence handover contain?
Preserve the question, quantity definition and review trail so the next team can continue without rebuilding the source mapping.
| Record | Useful evidence | Review question |
|---|---|---|
| Basis | Selected version and material matter. | Why is this information reported? |
| Meter reconciliation | Raw reading, allocated amounts, residual and reasons. | Can the reported quantity be reconciled to the source? |
| Method | Calculation and uncertainty. | Can another reviewer reproduce it? |
| Review | Decision owner and report location. | What remains unresolved? |
Read the detailed guidance and evidence
Ask data-management software suppliers and CSRD consultants to demonstrate that record.
The standards homepage helps compare other reporting bases before a water quantity is reused.
What is a useful first deliverable?
Start with one reviewed water record for the material matter and a clear list of missing evidence rather than an unexplained site total.
Module 01 / 03
Question
State the water information needed.
Module 02 / 03
Evidence
Link source, boundary and method.
Module 03 / 03
Decision
Retain approval and the next action.
Read the detailed guidance and evidence
Fenwick’s fictional review finishes with a supported source description and an open allocation task rather than a blanket compliance claim.
That file can be expanded once the reporting decision identifies which additional records are useful.
How can a team prepare the E3 file?
This editorial nine-step workflow supports reviewable evidence rather than prescribing a statutory method.
- 101
Fix the basis
Record year, version and scope decision. - 202
Describe the matter
Identify the material water question. - 303
Map locations
Retain activity and site context. - 404
Define quantities
Separate source readings and reporting measures. - 505
Check boundaries
Identify shared sources and exclusions. - 606
Review methods
Retain allocations and uncertainty. - 707
Connect actions
Distinguish plans from measured outcomes. - 808
Approve information
Check the supported reporting claim. - 909
Hand over
Keep definitions, evidence and report mapping.
Frequently asked
Questions people ask
What is revised E3 called?
The revised standard is titled Water rather than the earlier Water and marine resources.
What water sub-topics does it cover?
It covers water use including withdrawal, consumption, discharge and water stored.
Is a discharge quantity also a pollution answer?
Water use and pollution of water are distinct questions and need the appropriate evidence.
Does revised E3 retain E3-5?
Its revised structure ends at E3-4 rather than retaining the original topical anticipated-financial-effects requirement.
Does completing the workbook prove compliance?
No: the supporting draft list does not replace the standard and must not be used as a checklist.
Can a shared-meter estimate be called measured?
Keep the source reading and allocation assumptions distinct so the description accurately reflects the evidence.
Sources
Primary sources
Primary provisions and official owner guidance checked on 26 October 2026; historical and draft resources are labelled in the guide.
- Official JournalRevised ESRS: Regulation 2026/1563
- EFRAGIG1 Materiality Assessment, May 2024
- EFRAGESRS implementation guidance documents
- EFRAG Secretariat2026 draft datapoints explanatory note
- EFRAG2026 draft datapoints list release
- EFRAGRevised ESRS draft XBRL taxonomy release
- Official JournalOmnibus I: Directive 2026/470
- Official JournalOriginal ESRS: Regulation 2023/2772
- EFRAG Knowledge HubRevised ESRS E3 delegated-act text
- EFRAG Knowledge HubRevised ESRS E2 delegated-act text