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: 4 contracts awarded to MAR-DEB CONST & DEVELOPMENT CORP FORMERLY: MAR-DEB CONST & DEVELOPMENT by the same office started within 43 days, each between ₱42.5M and ₱50M (just under the ₱50M threshold), with 3 in the same municipality. It is possible that these are separate flood control projects for different sections or barangays, each requiring its own contract.

Public record entityConstruction of Mallig River Flood Control Project (Maligaya Section), Mallig, Isabela

LocationMALLIG (ISABELA), ISABELA, Region IIContract 23BF0061

Amount₱49,092,711.12 sumbong source

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

Satellite before / after

Esri Wayback · ~0.46 mLocation approximate

Before capture: 2021-06-28 · Maxar

After capture: 2025-06-02 · 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: four contracts, same contractor and DEO, all started within 43 days, each just under the ₱50M threshold, and three are in the same municipality. The titles indicate different sections (San Juan, San Isidro, Malligaya) and rivers (Siffu, Mallig), but C5 expects projects to be in different sitios/barangays/rivers within a municipality. There is no data artifact or false positive; the indicator is valid and the evidence is complete.

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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 Mallig River Flood Control Project (Maligaya Section), Mallig, Isabela23BF0061Flood control	100%	January 5, 2024	January 5, 2024	—	completedsumbong source

Start: April 11, 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": "Isabela 2nd District Engineering Office",
  "contractId": "23BF0061",
  "contractor": "MAR-DEB CONST & DEVELOPMENT CORP FORMERLY: MAR-DEB CONST & DEVELOPMENT",
  "windowDays": 120,
  "clusterSize": 4,
  "thresholdPhp": 50000000,
  "contractCostPhp": 49092711.12,
  "averageTitleSimilarity": 0.8978992221479305
}

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