Indicator C3 — Duplicate or Near-Duplicate Projects

AI-verified / Na-verify ng AI Data as of October 21, 2026

Duplicate or Near-Duplicate Projects

Very similar descriptions within ~100m or identical coordinates across contracts/years.

This is a statistical anomaly or indicator worth examining — not proof of wrongdoing, fraud, or corruption against any person.

Indicator: contracts 22DC0052 and 24DC0120 have near-identical descriptions about 854 m apart (funding years 2022, 2024; ₱77.20M, ₱96.50M). Worth checking whether they cover the same works. The second project may simply be a continuation or next phase of the first, as indicated by 'Phase 6'.

Public record entityConstruction of Flood Mitigation Structure along San Juan River, Tanauan - Sto. Tomas, Batangas

LocationCITY OF SANTO TOMAS (BATANGAS), BATANGAS, Region IV-AContract 22DC0052

Amount₱77,199,364.24 sumbong source

Only contractors and government agencies named in public procurement records are shown. Private individuals are not named.

Satellite before / after

Esri Wayback · ~0.5 mLocation approximate

Before capture: 2019-03-13 · Maxar

After capture: 2025-04-25 · Vantor

Satellite comparison for public reference — not proof of completion or non-completion.

Imagery may not show small or linear works; no visible change is not evidence of wrongdoing.

Imagery © Esri, Maxar, Earthstar Geographics, and the GIS User Community

Caveats & resolution

Esri World Imagery Wayback (~0.5–1 m); dates are archive release dates, not capture timestamps.
Imagery may not show small or linear works; no visible change is not evidence of wrongdoing.
DPWH coordinates can be approximate; marker shows the imagery center (may be snapped to riverbank/coast).

Disclaimer

Click imagery to enlarge

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How this was checked

publish · confidence 0.78

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The only distinguishing marker is 'Phase 6' in the second title, while the first title has no phase marker. According to the rule, if one title has a phase marker and the other does not, this is considered a potential unlabelled twin and should be published. The locations are close (854 m apart), and the titles are otherwise near-identical, both referring to flood mitigation structures along the same river and in the same municipalities. There is no evidence of a data artifact or clear difference in scope beyond the phase label.

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Project completion

Schedule fields from DPWH transparency portal records and the Sumbong sa Pangulo flood-control list — not inferred beyond those columns.

Reported complete (DPWH): 1Ongoing: 0Delayed: 0Status unknown: 0

Project	Prog.	Target end	Actual end	Days late	Status
Construction of Flood Mitigation Structure along San Juan River, Tanauan - Sto. Tomas, Batangas22DC0052Flood control	100%	January 18, 2023	November 14, 2022	No target date from DPWH, so lateness cannot be computed	completedsumbong source

Start: February 23, 2022 · Source fetched October 21, 2026

Rule Definition

Title similarity + distance or shared coordinates within municipality.

Triggering Data & citations

Similar project description near another contract in the same municipality

{
  "contractId": "22DC0052",
  "coordinates": {
    "lat": 14.084889,
    "lon": 121.15502
  },
  "municipality": "CITY OF SANTO TOMAS (BATANGAS)",
  "distanceMeters": 854.1547511752034,
  "titleSimilarity": 0.9743589743589743
}

Source documents

sumbong — https://raw.githubusercontent.com/rukku/sumbongsapangulo.ph-datasets/main/flood_control_projects.geojsonFetched October 21, 2026

Satellite before / after

Project completion

Rule Definition

Triggering Data & citations

Where this project sits