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Permanent project revision

AI Pressure-Sensor Leak Detection (Alto Boqueirão & Tatuquara)

Revision 2026-08-22-evidence-baseline · effective 2026-08-05

Current revision. This is the snapshot used by the live entity page.

unreviewed

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

sha256:8da19fb2231d875b418ed8f7ffefad349afa19785eb2096cabcce73171ac4f6a
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
2
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-0732319ee3bbb778 quantitative
Stattus4 installed AI-analyzed pressure sensors on water meters
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Saneamento Básico, reprinting Sanepar's release, describes exactly this hardware and analytics layer: "Com mentoria e apoio técnico da Sanepar e do Parque Tecnológico de Itaipu (PTI), a Stattus4 desenvolveu um modelo de sensores de pressão que são instalados nos hidrômetros da rede de distribuição para fazer a captação e o envio de dados a um servidor", and adds that the software is "Dotado de técnicas de Inteligência Artificial e de Aprendizado de Máquina". Stattus4 gives the same description of its Ada System, which "allows you to monitor field pressure, analyze trends with Artificial Intelligence and indicate potential leaks quickly and accurately through heat maps".
Caveat
The sources put the two parties in different roles than the shared verb suggests: Stattus4 developed and installed the system, while Sanepar provided mentoring and technical support through its Sanepar Startups programme.

Sources carrying this claim

  1. Saneamento Básico (trade press)
  2. Stattus4 (vendor)
Claim 2 clm-ccac223fbac71c5d quantitative
in a 22km pilot in Curitiba's Alto Boqueirão and Tatuquara neighborhoods to flag hidden leaks
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Saneamento Básico states the length and the two neighbourhoods: "a Stattus4 implantou um sistema inteligente de detecção de vazamentos numa extensão de 22 quilômetros de rede de Curitiba", and "o sistema foi aplicado nos bairros Alto Boqueirão e Tatuquara, na capital". It names the target as the buried leak: the technology helps "identificar de maneira mais rápida e precisa o vazamento oculto, quando a água infiltra na terra ou em galeria pluvial e não aflora à superfície". The Paraná state press office carries the same release; its page could not be opened during this check, because the Paraná government portal has taken its institutional news offline for the pre-election period required by Brazilian electoral law.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Saneamento Básico (trade press)
  2. Agência Estadual de Notícias do Paraná (state government press office)
Claim 3 clm-a481b3ebdd30936b quantitative
From January-August 2023
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Saneamento Básico dates the trial precisely: "Na fase de experimento da nova tecnologia, de janeiro a agosto de 2023, o sistema foi aplicado nos bairros Alto Boqueirão e Tatuquara" — an eight-month window. Stattus4 describes the same trial as lasting half that: "After just 6 months of using the Ada System, SANEPAR has achieved incredible results", and repeats it as "Ada System made it possible to reduce real losses by 70% in 6 months". The vendor never gives calendar dates, so the two accounts cannot be reconciled from the sources themselves.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Saneamento Básico (trade press)
  2. Agência Estadual de Notícias do Paraná (state government press office)
Claim 4 clm-7cb2c43ebcdd0308 quantitative
Alto Boqueirão's losses fell about 69%, from roughly 650 litres a day to about 200
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Saneamento Básico, sourced to Sanepar, gives the percentage and both endpoints: "o programa possibilitou uma recuperação de 69% do índice de perdas no Alto Boqueirão, reduzindo de 650 litros por dia para cerca de 200 litros/dia". The arithmetic is internally consistent — 650 down to 200 is a fall of 69 per cent. The Paraná state press office carries the same figures.
Caveat
No listed source states the unit as litres per connection per day. Sanepar's release gives only "litros por dia", with no denominator, while Stattus4 writes the same measurement as "650 m³/connection.day" — a thousandfold larger unit. The figure is a district loss index, not a citywide one, and it applies only to the two pilot sectors, not to Curitiba as a whole.

Sources carrying this claim

  1. Saneamento Básico (trade press)
  2. Agência Estadual de Notícias do Paraná (state government press office)
Claim 5 clm-c4e9e35f6d42e4fa quantitative
leak-investigation time dropped from up to 180 days to about three
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Saneamento Básico states it directly: "O tempo de investigação de vazamento, com equipamentos de escuta, que poderia levar até 180 dias, foi reduzido para três dias em média." The 180 days is described as an upper bound on how long the search could take, and the three days as an average.
Caveat
The figure measures how long crews took to locate a leak with listening equipment, not how long it took to repair one. Stattus4's account of the same trial does not mention it.

Sources carrying this claim

  1. Saneamento Básico (trade press)
  2. Agência Estadual de Notícias do Paraná (state government press office)
Claim 6 clm-01bf545f8ea3df9a quantitative
Sanepar then contracted a 2,500km southern-Curitiba expansion
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Saneamento Básico reports the follow-on contract and its scope: the system was installed over 22 km "e agora estende para mais 2.500 km em bairros da Região Sul da cidade", under an agreement "assinado entre as empresas com base na Lei das Startups" that "terá duração de dois anos". It dates the start of that phase to Wednesday 13 March 2024. Stattus4 frames the same step as forward-looking: "the Ada System will be scaled to monitor more than 2,500km of SANEPAR's water distribution network in 2024", under the heading "Estimated Results with Scalability".
Caveat
The sources document a contract signed and a rollout begun in March 2024, not a network actually instrumented. None of them reports how much of the 2,500 km was reached, and none published after the two-year contract term says whether it was completed or renewed.

Sources carrying this claim

  1. Saneamento Básico (trade press)
  2. Stattus4 (vendor)
  3. Agência Estadual de Notícias do Paraná (state government press office)
Claim 7 clm-fe383bff06f6c5d7 quantitative
Alto Boqueirão's losses fell about 69% — from roughly 650 litres a day to about 200, the utility publishing the figure without saying per what — over the January-August 2023 pilot
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Saneamento Básico, carrying Sanepar's release, reports "uma recuperação de 69% do índice de perdas no Alto Boqueirão, reduzindo de 650 litros por dia para cerca de 200 litros/dia" for the trial phase "de janeiro a agosto de 2023". Stattus4 reports the same sector without naming it, as Sector A: "Sector A had water leaks that resulted in a loss of 650 m³/connection.day", and "Ada System made it possible to reduce real losses by 70% in 6 months".
Caveat
The two accounts differ in three ways that the figure hides: the vendor rounds the fall to 70 per cent, describes the trial as six months rather than eight, and states the unit as cubic metres per connection per day where Sanepar states litres per day. No source writes the unit as litres per connection per day.

Sources carrying this claim

  1. Saneamento Básico (trade press)
  2. Agência Estadual de Notícias do Paraná (state government press office)
  3. Stattus4 (vendor)
Claim 8 clm-b7adb966e85a023f quantitative
per Sanepar and Stattus4's self-reported figures
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Both accounts come from parties to the project. Saneamento Básico closes its article by naming the utility as its source: "Fonte: Sanepar." The other account is published by the supplier itself, which describes the trial as its own: "In the Sanepar Startups Project, the Ada System was successfully implemented in two Sectors of Curitiba, here called A and B." No listed source is an audit, a regulator or a study by anyone outside the project.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Saneamento Básico (trade press)
  2. Stattus4 (vendor)
Claim 9 clm-e003a7dd2eadf947 descriptive
A second pilot section in Tatuquara showed a smaller drop from a much lower starting level
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Saneamento Básico reports the second sector alongside the first: "No Tatuquara, foi constatada a redução de 49% das perdas reais, passando de 100 l/d para 59 l/d." Stattus4 reports the same sector as Sector B: "in Sector B, which already presented balanced performance indices, the Ada System enabled the recovery of 49% of water losses", from a starting point it gives as "100 m³/connection.day".
Caveat
The drop in Tatuquara is smaller than in Alto Boqueirão on every figure the sources give — 41 or 49 per cent against 69 — and it started from a far lower loss level, 100 units a day against 650. Stattus4 says outright that this sector "already presented balanced performance indices".

Sources carrying this claim

  1. Saneamento Básico (trade press)
  2. Agência Estadual de Notícias do Paraná (state government press office)
  3. Stattus4 (vendor)
Claim 10 clm-5c6fdabd9e9f39de descriptive
Sanepar's own releases give conflicting figures for it
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Two versions of the same utility release disagree. Saneamento Básico, sourced to Sanepar, prints 49 per cent: "No Tatuquara, foi constatada a redução de 49% das perdas reais, passando de 100 l/d para 59 l/d", and Stattus4 gives 49 per cent as well. The Paraná state press office version prints about 41 per cent for the same sector and the same endpoints. The endpoints settle which is arithmetically right: 100 down to 59 is a fall of 41 per cent, so the 49 per cent figure does not follow from the numbers printed beside it.
Caveat
Only the 49 per cent half of this disagreement can be opened today. The Paraná state press office release carrying the 41 per cent figure is offline, because the state portal has withdrawn its institutional news for the pre-election period required by Brazilian electoral law.

Sources carrying this claim

  1. Saneamento Básico (trade press)
  2. Agência Estadual de Notícias do Paraná (state government press office)

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 2026-08-22-evidence-baseline effective 2026-08-05 · created 2026-08-22

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

sha256:8da19fb2231d875b418ed8f7ffefad349afa19785eb2096cabcce73171ac4f6a
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
10
of 10 claims mapped
3
source dossiers
2
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
Sanepar (Companhia de Saneamento do Paraná), technology by Stattus4
Actor types
utility, private
Funding model
utility
Funding description
Not recorded
Cost
Not recorded
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

3 source dossiers

Agência Estadual de Notícias do Paraná (state government press office) parana.pr.gov.br · 8 linked claims

Open original source ↗

Stable source ID
src-ec438fc15183260b
Publisher
Name not classified · parana.pr.gov.br
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-05
Dossier created
2026-08-22
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Direct fetch returned 404/blocked; content and figures confirmed via search-engine indexing and cross-matched against independent mirrors (saneamentobasico.com.br, saneparstartups.com.br). Covers the Jan-Aug 2023 pilot results and the 2,500km expansion contract.

Descriptive only — not page/paragraph exact
Claims linked
Saneamento Básico (trade press) saneamentobasico.com.br · 10 linked claims

Open original source ↗

Stable source ID
src-9cd1b68298758ffc
Publisher
Name not classified · saneamentobasico.com.br
Type / language
web-page · language not classified
Published
2024-03-19
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-05
Dossier created
2026-08-22
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Directly fetched. Confirms Alto Boqueirão 69% (650→~200 L/d), the 180-day-to-3-day leak-investigation improvement, and the two-year Startup Law contract for the 2,500km expansion. Gives Tatuquara as 49% (conflicts with the 41% figure attributed to the state government source).

Descriptive only — not page/paragraph exact
Claims linked
Stattus4 (vendor) stattus4.com · 5 linked claims

Open original source ↗

Stable source ID
src-0571b6639e99e8e7
Publisher
Name not classified · stattus4.com
Type / language
web-page · language not classified
Published
2024-03-08
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-05
Dossier created
2026-08-22
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Directly fetched, vendor's own account of the same pilot (described as Sector A/Sector B rather than by neighborhood name); confirms the ~70%/49% loss-recovery order of magnitude and the >2,500km 2024 expansion. Vendor source, used only to corroborate figures already found in press coverage.

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.