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 23CM0023 and 24CM0001 have near-identical descriptions about 1450 m apart (funding years 2023, 2024; ₱77.20M, ₱96.50M). Worth checking whether they cover the same works. It is possible these are sequential or adjacent phases of river rehabilitation, or that the second contract continues or expands the first.

Public record entityRehabilitation of Kalaklan River, Olongapo City, Zambales

LocationOLONGAPO CITY (ZAMBALES), ZAMBALES, Region IIIContract 23CM0023

Amount₱77,199,995.60 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: 2019-10-27 · Maxar

After capture: 2019-10-27 · Vantor

No imagery since construction began — latest capture 2019-10-27

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 0.95

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The titles are near-identical except for the addition of 'Zambales' in the first, which is not a distinguishing marker since Olongapo City is in Zambales and this is a common redundancy. There are no phase, package, section, or site markers distinguishing the works. The projects are about 1.45 km apart, which is plausible for overlapping or repeated works along a river. The evidence is complete and the indicator is neutrally stated.

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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
Rehabilitation of Kalaklan River, Olongapo City, Zambales23CM0023Flood control	100%	October 28, 2023	October 28, 2023	—	completedsumbong source

Start: February 14, 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": "23CM0023",
  "fundingYear": 2023,
  "municipality": "OLONGAPO CITY (ZAMBALES)",
  "distanceMeters": 1450.2551390013969,
  "titleSimilarity": 0.9649122807017544
}

Source documents

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

Possible Innocent Explanations

Phased construction seasons
Upstream/downstream segments recorded separately