{ "schemaVersion": "1.0.0", "constitutionVersion": "1.0.0", "createdAt": "2026-08-12T00:00:00Z", "description": "Append-only Evidence Passport records. Old revisions are immutable; corrections create a new revision and preserve the previous permalink.", "entity": { "type": "project", "id": "manchester-storm-overflow-monitoring", "title": "United Utilities' Storm-Overflow Monitors and Live Spill Map in Manchester", "canonicalUrl": "https://1001smartcities.org/projects/manchester-storm-overflow-monitoring/" }, "currentRevisionId": "2026-10-16-baseline", "revisions": [ { "id": "2026-10-16-baseline", "createdAt": "2026-10-16T10:03:31Z", "effectiveAt": "2026-10-16", "changeType": "baseline", "summary": "Created the first structured Evidence Passport with 22 claims and 8 source dossiers.", "preparedBy": { "type": "automation", "label": "AI-assisted evidence preparation", "humanApproved": false }, "review": { "status": "unreviewed", "by": null, "date": null, "note": "Awaiting operator and domain-expert review; publication of this revision implies neither." }, "changes": [ { "operation": "add", "path": "/evidencePassport", "summary": "Added claim-level evidence mapping and source dossiers." }, { "operation": "add", "path": "/revisionHistory", "summary": "Established a permanent, hash-addressed baseline revision." } ], "snapshotHash": "sha256:38c9c9b8059ac9a2603d7a22fd5e9390d772450a72c07053a5b999bd57e332a0", "snapshot": { "asOf": "2026-10-16", "projectFingerprint": "sha256:9384df50994cda1f1e8ff7af1040191160c88c31d7f758b35a03b9d37feb4f24", "assurance": { "status": "unreviewed", "scope": "evidence-passport-revision", "statement": "AI-assisted structural preparation. This revision has not been reviewed by a human or subject-matter expert.", "machineChecks": [ "schema", "publication-diff-contract", "material-project-fingerprint", "claim-text-drift", "source-reference-resolution", "complete-source-dossier", "snapshot-hash" ] }, "projectState": { "status": "live", "outcome": "ongoing", "evidenceGrade": "independent", "timeline": { "started": 2019, "ended": null } }, "governance": { "operator": "United Utilities Water Limited (regional private water and sewerage company for North West England); annual returns reviewed and published by the Environment Agency", "actorTypes": [ "utility", "national-government" ], "fundingModel": "utility", "fundingDescription": "United Utilities; the Aspin Lane overflow removal cost £1.3 million and forms part of the company's 2025–30 investment programme. No budget for the monitoring itself located.", "cost": null, "ownership": null, "decisionRights": null, "exitConditions": null }, "claims": [ { "id": "clm-71a34d7df22999bf", "field": "snippet", "text": "United Utilities, the stock-market-listed company that runs water and sewerage across North West England", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-c3911a1e0c0c2a6c" ], "supportNote": "The company reports to the stock exchange as a listed PLC, and its chief executive describes the programme as the transformation of 'our region's water and wastewater infrastructure' in the North West.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-b70d86284754032b", "field": "snippet", "text": "has an event duration monitor on every one of its storm overflows", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-45332543d2906e2d" ], "supportNote": "The regulator's 2024 report lists 2,270 active storm overflows and 2,270 with event duration monitoring commissioned, 100%.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-15445329ef5a0bd2", "field": "snippet", "text": "including the relief points where central and north Manchester's combined sewers spill into the Rivers Irk and Medlock", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-cf77377d65bb73d5", "src-519d30ab9a5d9102" ], "supportNote": "The 2025 return lists monitored combined sewer overflows in central Manchester discharging to the River Medlock (Princess St/Whitworth St, Charles St/Princess St, Oxford Road/Grosvenor Street) and in north Manchester to the River Irk (Aspin Lane, Rochdale Road/Collyhurst); the company places Aspin Lane on the edge of the Green Quarter and NOMA.", "caveat": "The location of each overflow is given in the return as a grid reference and site name, not by local authority.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-6ac87b3d29bae913", "field": "snippet", "text": "The monitors record how often and for how long each overflow discharges.", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-cf77377d65bb73d5" ], "supportNote": "The dataset documentation defines two measured columns: hours each overflow discharged in 2025 and the number of spills counted with the 12-24 hour method.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-f28a6e5290449edb", "field": "snippet", "text": "Every year the company returns those figures to the Environment Agency, which publishes them overflow by overflow", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-cf77377d65bb73d5", "src-f779ebd75e1bcf00" ], "supportNote": "The company says it provides verified annual discharge data to the regulator, which reviews and publishes it; the 2025 dataset has one row per storm overflow.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-60af3a159ce79f37", "field": "snippet", "text": "since April 2024 it has also shown each overflow's status on an interactive near-real-time map", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-5c1f0e2b9e012068", "src-56f915b5c842f64f" ], "supportNote": "Utility Week reported on 30 April 2024 that United Utilities was among three companies that had launched such maps; the company describes its map as interactive, near real-time and covering all its storm overflows.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-442e0f91bf06691f", "field": "snippet", "text": "companies aim to transmit a discharge within an hour", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-f779ebd75e1bcf00" ], "supportNote": "The company's information-request reply states the transmission aim and describes the route from monitor to cloud storage to map.", "caveat": "This is an aim, not a measured delay.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-b017400ab404c402", "field": "snippet", "text": "An overflow that spills more than 30 times in a year has to be given a reason in the return.", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-cf77377d65bb73d5" ], "supportNote": "The documentation asks companies to state a single-year reason in the 'High Spill Frequency – Operational Review' column when the spill count exceeds the threshold of more than 30, which is based on spill frequency investigation triggers.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-48f6508092259b3f", "field": "snippet", "text": "The operator is a regional private utility", "statementKind": "descriptive", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-c3911a1e0c0c2a6c" ], "supportNote": "The listed company's results describe the water and wastewater infrastructure of its region, the North West, as its own business.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-65d5835808d6273e", "field": "impact", "text": "In 2025 the Aspin Lane overflow on the River Irk, on the edge of the Green Quarter and NOMA district, spilled 50 times for a total of 35 hours", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-cf77377d65bb73d5", "src-519d30ab9a5d9102" ], "supportNote": "The 2025 return's row for Aspin Lane CSO (receiving water River Irk) gives 50 counted spills and a total duration of 35:04:00; the company's announcement places the site on the edge of Manchester's Green Quarter and NOMA district.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-15566676a4fbbbeb", "field": "impact", "text": "(its long-term average is 53 spills a year); the return gives the reason as hydraulic capacity and marks an Environment Act improvement as ongoing", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-cf77377d65bb73d5" ], "supportNote": "The same row gives a long-term average spill count of 53, 'Not asset maintenance - Hydraulic capacity' as the high-spill reason, and 'Env Act (SODRP) improvement ongoing' for the reporting period.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-83238e8a9b61f026", "field": "impact", "text": "In 2026 United Utilities invested £1.3 million to disconnect surface water from the combined sewer there and sealed the overflow off.", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-519d30ab9a5d9102" ], "supportNote": "The company says it invested £1.3 million to disconnect surface water drainage from the combined sewer at Aspin Lane, removing enough surface water to prevent the storm overflow from operating, and that the overflow has been sealed off; the work began in June 2026.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-999f739ea785dab2", "field": "impact", "text": "On the same river the Rochdale Road/Collyhurst overflow spilled 92 times, for 415 hours, with no improvement action in the reporting period.", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-cf77377d65bb73d5" ], "supportNote": "The return's row for Rochdale Rd / Burgin Walk CSO (operational name Rochdale Road/Collyhurst CSO, receiving water The River Irk) gives 92 counted spills, a duration of 415:26:00, reason 'Not asset maintenance - Hydraulic capacity', 'Env Act (SODRP) investigation ongoing' and 'No improvement action in reporting period'.", "caveat": "An investigation at this overflow was recorded as ongoing.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-401a48fe052b5433", "field": "impact", "text": "Across the North West the company reported a 22% reduction in spill numbers in 2025", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-766162f954d9c0c0" ], "supportNote": "The company's announcement of 26 March 2026 says the Environment Agency's figures confirmed a 22% reduction in spill numbers, 16,974 fewer spills.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-de82bff0209e55ef", "field": "impact", "text": "credits 129 interventions at 125 Greater Manchester overflows with preventing 4,225 activations; these are its own figures", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-766162f954d9c0c0" ], "supportNote": "The announcement says that across Greater Manchester 129 interventions improved 125 storm overflows and together prevented 4,225 overflow activations.", "caveat": "The company does not say how the prevented activations were calculated, and the figure covers all of Greater Manchester.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-26d237a329a9ffb5", "field": "impact", "text": "the Environment Agency rated the company four stars for 2023 and two stars, 'requires improvement', for 2024", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-45332543d2906e2d" ], "supportNote": "The regulator's star-rating table gives 4 stars ('Industry leading company') for 2023 and 2 stars ('Company requires improvement') for 2024.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-504fa7034734135a", "field": "impact", "text": "its 347 sewerage pollution incidents were rated red", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-45332543d2906e2d" ], "supportNote": "The report rates the 2024 sewerage pollution incident metric red: 347 incidents, 45 per 10,000 km of sewer, where 158 or fewer would have been green.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-42de86a96d678028", "field": "impact", "text": "an Ofwat enforcement case opened in 2024 was still unresolved at 31 March 2026, with a possible penalty the company puts at around £100 million", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-c3911a1e0c0c2a6c" ], "supportNote": "The results statement says that at 31 March 2026 the water company remained subject to the enforcement case Ofwat opened in 2024, that a penalty could reach 10 per cent of relevant wastewater turnover, around £100 million, and that no provision has been recognised.", "caveat": "Ofwat has not found a breach; the company says the opening of a case does not imply that a penalty will follow.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-182ed027687d03a2", "field": "lesson", "text": "more than 30 spills in a year and the company has to explain itself to the regulator", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-cf77377d65bb73d5" ], "supportNote": "The return requires a reason for any overflow above the single-year threshold of more than 30 spills.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-a5344da661cac9dd", "field": "lesson", "text": "In Manchester one overflow on the Irk was sealed off in 2026 after a year of 50 spills, as part of the company's wider programme", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-cf77377d65bb73d5", "src-519d30ab9a5d9102" ], "supportNote": "The 2025 return gives Aspin Lane 50 spills; the company's 2026 announcement says the overflow was sealed off and that the scheme is part of its wider programme.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-c52b647885dba0ae", "field": "lesson", "text": "while another on the same river logged 92 with no improvement action", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-cf77377d65bb73d5" ], "supportNote": "The Rochdale Road/Collyhurst row gives 92 spills and 'No improvement action in reporting period'.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } }, { "id": "clm-3f6aae82657b262c", "field": "lesson", "text": "Ofwat's case, opened in 2024, was still open in 2026", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-c3911a1e0c0c2a6c" ], "supportNote": "The results statement of 30 April 2026 says the case remained open at 31 March 2026 with no firm timeframe for its conclusion.", "caveat": null, "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } } ], "sources": [ { "id": "src-cf77377d65bb73d5", "title": "Environment Agency — Event Duration Monitoring: Storm Overflow Annual Return 2025 (dataset and documentation)", "url": "https://environment.data.gov.uk/api/file/download?fileDataSetId=c55e170e-3c75-49a5-8026-a961ff94c8e0&fileName=EDM_2025_Storm_Overflow_Annual_Return.zip", "publisher": { "name": null, "domain": "environment.data.gov.uk", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-15445329ef5a0bd2", "clm-6ac87b3d29bae913", "clm-f28a6e5290449edb", "clm-b017400ab404c402", "clm-65d5835808d6273e", "clm-15566676a4fbbbeb", "clm-999f739ea785dab2", "clm-182ed027687d03a2", "clm-a5344da661cac9dd", "clm-c52b647885dba0ae" ], "temporal": { "publishedAt": "2026-03-26", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "The regulator's dataset of every monitored storm overflow in England for 2025, with its documentation. United Utilities' sheet lists ASPIN LANE CSO 281CJ (River Irk): 50 counted spills, duration 35:04:00, long-term average 53, data from 2019, reason 'Not asset maintenance - Hydraulic capacity', 'Env Act (SODRP) improvement ongoing'; and the Rochdale Road/Collyhurst CSO (River Irk): 92 spills, 415:26:00, 'No improvement action in reporting period'. The documentation defines the counts and the single-year high spill frequency threshold of more than 30. The workbook notes it was updated in August 2026 after a re-submission by another company.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-45332543d2906e2d", "title": "Environment Agency — United Utilities EPA data report 2024", "url": "https://www.gov.uk/government/publications/water-and-sewerage-companies-in-england-environmental-performance-report-2024/united-utilities-epa-data-report-2024", "publisher": { "name": null, "domain": "gov.uk", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-b70d86284754032b", "clm-26d237a329a9ffb5", "clm-504fa7034734135a" ], "temporal": { "publishedAt": "2025-10-23", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "The Environment Agency's annual assessment of the company: four stars ('Industry leading company') for 2023 and two stars ('Company requires improvement') for 2024; 347 sewerage pollution incidents in 2024, rated red, against 216 in 2023; 2,270 active storm overflows, all with event duration monitoring commissioned.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-519d30ab9a5d9102", "title": "United Utilities — United Utilities completes Manchester sewer improvement scheme (17 Aug 2026)", "url": "https://corporate.unitedutilities.com/corporate/newsroom/latest-news/united-utilities-completes-manchester-sewer-improvement-scheme/", "publisher": { "name": null, "domain": "corporate.unitedutilities.com", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-15445329ef5a0bd2", "clm-65d5835808d6273e", "clm-83238e8a9b61f026", "clm-a5344da661cac9dd" ], "temporal": { "publishedAt": "2026-08-17", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Company announcement: £1.3 million spent disconnecting surface water drainage from the combined sewer at Aspin Lane, on the edge of Manchester's Green Quarter and NOMA district; enough surface water removed to prevent the storm overflow from operating, and the overflow sealed off; work began in June and finished ahead of a 19-week schedule; part of the company's wider programme to improve rivers.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-766162f954d9c0c0", "title": "United Utilities — United Utilities cuts storm overflow spills across the North West (26 Mar 2026)", "url": "https://corporate.unitedutilities.com/corporate/newsroom/latest-news/united-utilities-cuts-storm-overflow-spills-across-the-north-west/", "publisher": { "name": null, "domain": "corporate.unitedutilities.com", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-401a48fe052b5433", "clm-de82bff0209e55ef" ], "temporal": { "publishedAt": "2026-03-26", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Company announcement on the day the Environment Agency released the 2025 figures: a 22% reduction in spill numbers (16,974 fewer) and 27% in duration across the North West; across Greater Manchester, 129 interventions at 125 storm overflows that the company says prevented 4,225 activations.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-c3911a1e0c0c2a6c", "title": "United Utilities Group PLC — Preliminary full year results for the year ended 31 March 2026 (30 Apr 2026)", "url": "https://www.unitedutilities.com/globalassets/documents/corporate-documents/2025-26-preliminary-full-year-results-rns-final.pdf", "publisher": { "name": null, "domain": "unitedutilities.com", "classification": "not-classified" }, "sourceType": "pdf", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-71a34d7df22999bf", "clm-48f6508092259b3f", "clm-42de86a96d678028", "clm-3f6aae82657b262c" ], "temporal": { "publishedAt": "2026-04-30", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Stock-exchange results statement. Under contingent liabilities: the water company remains subject to the enforcement case Ofwat opened in 2024; a penalty could reach 10 per cent of relevant wastewater turnover, around £100 million; no provision recognised; no firm timeframe for conclusion; a parallel Environment Agency investigation into permit compliance is ongoing.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-5c1f0e2b9e012068", "title": "Utility Week — Three water companies launch live sewage discharge maps (30 Apr 2024)", "url": "https://staging4.utilityweek.co.uk/three-water-companies-launch-live-sewage-discharge-maps/?amp=true", "publisher": { "name": null, "domain": "staging4.utilityweek.co.uk", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-60af3a159ce79f37" ], "temporal": { "publishedAt": "2024-04-30", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "Trade-press report by Ruth Williams: Northumbrian, United Utilities and Yorkshire have launched interactive near-real time digital maps of storm overflows in their regions ahead of bathing water season, showing locations and ongoing operations.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-f779ebd75e1bcf00", "title": "United Utilities — Response to environmental information request EIR-738 (20 Mar 2026)", "url": "https://cumbria.unitedutilities.com/globalassets/documents/corporate-documents/eir-738-pdf_redacted.pdf", "publisher": { "name": null, "domain": "cumbria.unitedutilities.com", "classification": "not-classified" }, "sourceType": "pdf", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-f28a6e5290449edb", "clm-442e0f91bf06691f" ], "temporal": { "publishedAt": "2026-03-20", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-10-16", "dossierCreatedAt": "2026-10-16", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "The company's reply to an information request (about an area of the Wirral). 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