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 22DL0070 and 23DL0101 have near-identical descriptions about 147 m apart (funding years 2022, 2023; ₱19.60M, ₱82.03M). Worth checking whether they cover the same works. It is possible that the second project is a continuation or expansion of the first, with 'Package B' indicating a new phase or additional scope.

Public record entityConstruction of Flood Control and Drainage Structure along Pipisik River, Gumaca, Quezon, Package B

LocationGUMACA (QUEZON), QUEZON, Region IV-AContract 23DL0101

Amount₱82,025,000.00 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: 2021-03-18 · Maxar

After capture: 2025-10-31 · 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

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How this was checked

publish · confidence 0.95

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The two project titles are nearly identical, with the only difference being that one is labeled 'Package B' and the other is unlabelled. There are no phase, section, or location markers distinguishing them, and the projects are only 147 meters apart. This fits the guidance for publishing as a possible unlabelled twin or continuation, especially since the funding years are consecutive and the contractors differ.

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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 Control and Drainage Structure along Pipisik River, Gumaca, Quezon, Package B23DL0101Flood control	100%	December 18, 2023	September 13, 2023	—	completedsumbong source

Start: March 24, 2023 · 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": "23DL0101",
  "coordinates": {
    "lat": 13.919978,
    "lon": 122.093475
  },
  "municipality": "GUMACA (QUEZON)",
  "distanceMeters": 147.24233052013838,
  "titleSimilarity": 0.9832402234636871
}

Source documents

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