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 22DB0022 and 22DB0030 have near-identical descriptions at the same coordinates (funding year 2022; ₱49.00M, ₱49.00M). Worth checking whether they cover the same works. One project may be a continuation or second phase of the other, but the first contract does not specify this.

Public record entityConstruction of Seawall at Barangay Sinisian East, Lemery, Batangas

LocationLEMERY (BATANGAS), BATANGAS, Region IV-AContract 22DB0022

Amount₱49,000,000.00 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: 2016-02-24 · Maxar

After capture: 2025-06-03 · 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 0.80

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The only distinguishing marker is 'Phase II' in the second title, while the first title has no phase marker at all. Per rule guidance, if one title has a phase marker and the other does not, this is a classic 'unlabelled twin' case and should be published. Both projects are at the exact same coordinates, in the same barangay, with identical costs and funding year, but different contractors. The evidence is complete and checkable.

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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 Seawall at Barangay Sinisian East, Lemery, Batangas22DB0022Flood control	100%	December 7, 2022	December 7, 2022	—	completedsumbong source

Start: February 11, 2022 · Source fetched October 21, 2026

Rule Definition

Title similarity + distance or shared coordinates within municipality.

Triggering Data & citations

Identical coordinates shared by multiple contracts

{
  "contractId": "22DB0022",
  "coordinates": {
    "lat": 13.907326,
    "lon": 120.85731
  },
  "otherContracts": [
    "22DB0030"
  ]
}

Source documents

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

Possible Innocent Explanations

Multi-component contracts sharing a single pin
GIS centroid placement