1001 Smart Cities

Permanent project revision

Rome Smart Water Network (Acea Ato 2)

Revision 2026-08-27-claims-and-sources · effective 2026-08-27

Superseded. A later revision exists: 2026-08-27-source-dating →

unreviewed

Created the first structured Evidence Passport with 10 claims and 3 source dossiers.

sha256:4368a7adb4af0e1c92013a9063cc87c5d14984253a943835c11df82d573e5536
All revisions → Current entity page →

Change set

  • add /evidencePassport — Added claim-level evidence mapping and source dossiers.
  • add /revisionHistory — Established a permanent, hash-addressed baseline revision.
10
of 10 claims mapped
3
source dossiers
0
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Claims, one by one

The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.

Claim 1 clm-cef2ce7fbb8e2a5c quantitative
Acea Ato 2 runs the water service for Rome and 112 other municipalities in Lazio Centrale, the largest such territory in Italy, serving about four million people over more than 5,000 square kilometres
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The operator's own description of its concession area and the population it serves.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Acea Ato 2 — who we are (operator)
Claim 2 clm-7d65329b98f06587 quantitative
759 measurement districts over more than 13,000km of georeferenced network
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Stated in the sustainability report's water-leaks chapter.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Acea 2023 Sustainability Report — water leaks (operator)
Claim 3 clm-ab9ae4e538f65ebb descriptive
with surveys, flow and pressure measurement, water balancing, mathematical modelling and active leak searching on top
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The report lists what the district work consisted of.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Acea 2023 Sustainability Report — water leaks (operator)
Claim 4 clm-922171daa1b29812 descriptive
A second programme is swapping household meters for electronic ones that send consumption data to the utility by themselves; the swap is free to the customer
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The operator's plan page describes the smart meters and states twice that the replacement is free.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Acea Ato 2 — electronic water-meter replacement plan (operator)
Claim 5 clm-b897d17184fc66a3 quantitative
Total leaks on the Rome network eased to 27.8% in 2023, from 27.9% in 2022
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Both figures come from the same sentence of the report.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Acea 2023 Sustainability Report — water leaks (operator)
Claim 6 clm-a45d67f4a5cba47a quantitative
Counted as volume rather than share, the same year's measures cut the water lost by 2% against 2022 and by about 19% against 2019
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The report gives the volume reduction immediately before the percentage figures.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Acea 2023 Sustainability Report — water leaks (operator)
Claim 7 clm-f842854c5adce16a quantitative
Across the whole territory the utility serves, total leaks were still around 38.4%, down from 38.9% in 2022
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The report gives the territory-wide figure alongside the Rome network figure.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Acea 2023 Sustainability Report — water leaks (operator)
Claim 8 clm-10db90d8e0156c5d descriptive
Neither figure has been checked from outside; the utility publishes them itself, in its own sustainability report
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Both the share and the volume figures appear in Acea's own sustainability report; no external verification is cited alongside them.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Acea 2023 Sustainability Report — water leaks (operator)
Claim 9 clm-bd8e7b7f373d70dc quantitative
changing the meter is a legal obligation under a ministerial decree of 21 April 2017 covering every non-MID meter installed before 2007
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Answered in the plan's own FAQ, naming the decree and the meters it covers.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Acea Ato 2 — electronic water-meter replacement plan (operator)
Claim 10 clm-414ad9afa57b0aea quantitative
the meter reports consumption to Acea Ato 2 on its own, which is what turns a legally required swap into bills based on real use and leaks that show up early
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The operator names exactly these three effects of the communication module.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Acea Ato 2 — electronic water-meter replacement plan (operator)

Source dossiers and revision state

This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.

unreviewed Revision 2026-08-27-claims-and-sources effective 2026-08-27 · created 2026-08-27

Awaiting operator and domain-expert review; publication of this revision implies neither.

Erratum on this revision's envelope. The snapshot, its hash and its permanent link are untouched.

  • createdAt previously read 2026-09-05T10:00:00Z. The batching script that produced this revision advanced createdAt into the future to satisfy the strictly-increasing order the validator requires per entity. The value never recorded a real event; the corrected value is the moment the revision provably existed in the repository. Corrected to 2026-08-27T05:08:04Z on 2026-08-27; evidence: first appears in commit 9d2e71d171, committed 2026-08-27T05:08:04Z.
sha256:4368a7adb4af0e1c92013a9063cc87c5d14984253a943835c11df82d573e5536
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
10
of 10 claims mapped
3
source dossiers
0
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
Acea Ato 2
Actor types
utility
Funding model
utility
Funding description
Not recorded
Cost
Not recorded
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

3 source dossiers

Acea 2023 Sustainability Report — water leaks (operator) reports.gruppoacea.it · 6 linked claims

Open original source ↗

Stable source ID
src-7a802650d1de34b2
Publisher
Name not classified · reports.gruppoacea.it
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-27
Dossier created
2026-09-05
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Operator/authority. 759 measurement districts over 13,000+ km, 529 flow/pressure meters (2023); Rome network leaks 27.8% (2023) vs 27.9% (2022); territory total ~38.4%; ~19% loss reduction vs 2019.

Descriptive only — not page/paragraph exact
Claims linked
Acea Ato 2 — electronic water-meter replacement plan (operator) aceaato2.a-acqua.it · 3 linked claims

Open original source ↗

Stable source ID
src-1c95030859e1b004
Publisher
Name not classified · aceaato2.a-acqua.it
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-27
Dossier created
2026-09-05
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

The meter replacement plan: modern digital meters, free of charge to the customer; smart meters that transmit consumption data directly to Acea Ato 2, giving bills based on real use and early detection of leaks; the replacement is a legal obligation under ministerial decree no. 93 of 21 April 2017 for all non-MID meters installed before 2007.

Descriptive only — not page/paragraph exact
Claims linked
Acea Ato 2 — who we are (operator) aceaato2.a-acqua.it · 1 linked claim

Open original source ↗

Stable source ID
src-6c1bc6a00323f9c4
Publisher
Name not classified · aceaato2.a-acqua.it
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-27
Dossier created
2026-09-05
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Acea Ato 2 as operator of the integrated water service in ATO 2 Lazio Centrale-Roma, the largest in Italy: about four million people served over more than 5,000 square kilometres, the capital and 112 municipalities of Lazio.

Descriptive only — not page/paragraph exact
Claims linked
Known limits of this passport
  • Publisher names and source languages have not yet been classified; domains are recorded without guessing.
  • Existing source notes are descriptive locators, not page- or paragraph-exact citations.
  • A missing archive, publication date or content hash is shown as null rather than inferred.
  • The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim.