Indicator C5 — Pattern Consistent with Contract Splitting

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

Pattern Consistent with Contract Splitting

Multiple similar contracts to the same contractor/DEO just under a threshold in a short window.

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

Indicator: 5 contracts awarded to 729 CONST INC FORMERLY 722 CONST INC by the same office started within 107 days, each between ₱42.5M and ₱50M (just under the ₱50M threshold), with 5 in the same municipality. It is possible these are separate projects in different locations within Marikina City, each addressing distinct drainage or flood control needs.

Public record entityConstruction of Drainage System, Brgy. Tumana, Marikina City

LocationCITY OF MARIKINA (METROPOLITAN MANILA), MARIKINA CITY, National Capital RegionContract 23OB0403

Amount₱46,727,916.11 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 m

Before capture: 2021-02-02 · 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

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How this was checked

publish · confidence 0.98

Model: gpt-4.1

Prompt: v4

Checked: October 22, 2026

This is a textbook C5 case: five contracts, all just under the ₱50M threshold, awarded to the same contractor by the same DEO, within 107 days, and all in the same municipality. The titles refer to similar types of flood control works (box culvert, drainage systems, river improvement) in Marikina City, with some specifying barangays or rivers, but the C5 rule expects projects to be in different parts of the same municipality. There is no evidence of a data artifact or false positive.

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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 Drainage System, Brgy. Tumana, Marikina City23OB0403	100%	December 16, 2023	December 16, 2023	—	completedsumbong source

Start: March 22, 2023 · Source fetched October 21, 2026

Rule Definition

≥3 contracts within 120 days, each 85–100% of ₱50M threshold, similar titles.

Triggering Data & citations

Cluster of contracts just under procurement threshold with similar scope

{
  "deo": "Metro Manila 1st District Engineering Office",
  "contractId": "23OB0403",
  "contractor": "729 CONST INC FORMERLY 722 CONST INC",
  "windowDays": 120,
  "clusterSize": 5,
  "thresholdPhp": 50000000,
  "contractCostPhp": 46727916.11,
  "averageTitleSimilarity": 0.8009518371820326
}

Source documents

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

Possible Innocent Explanations

Legitimate multi-lot procurement
Different sites under same program