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. These may be separate flood control projects for different barangays or river sections, which is common in infrastructure planning.

Public record entityConstruction of Siffu River Flood Control Project (Barangay San Isidro Section), Sta. 0+000 - Sta. 0+600, Barangay San Isidro, Quirino, Isabela,

LocationQUIRINO (ISABELA), ISABELA, Region IIContract 23BF0048

Amount₱48,249,880.15 sumbong source

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

Satellite before / after

Esri Wayback · ~0.31 mLocation approximate

Before capture: 2022-05-02 · Maxar

After capture: 2025-06-15 · 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

Click imagery to enlarge

Loading satellite imagery…

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, all just under the ₱50M threshold, awarded to the same contractor by the same DEO within 43 days, with three in the same municipality. The titles indicate different sections (San Juan, San Isidro, Maligaya) and even different rivers (Siffu, Mallig), which is expected for C5 and not a reason to reject. The evidence is complete and the public can check all records.

Full AI audit log →

View project record

Submit evidence about this

Named in this indicator? Respond or report an error · Corrections policy

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 Siffu River Flood Control Project (Barangay San Isidro Section), Sta. 0+000 - Sta. 0+600, Barangay San Isidro, Quirino, Isabela,23BF0048Flood control	100%	December 14, 2023	December 12, 2023	No target date from DPWH, so lateness cannot be computed	completedsumbong source

Start: March 20, 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": "23BF0048",
  "contractor": "MAR-DEB CONST & DEVELOPMENT CORP FORMERLY: MAR-DEB CONST & DEVELOPMENT",
  "windowDays": 120,
  "clusterSize": 4,
  "thresholdPhp": 50000000,
  "contractCostPhp": 48249880.15,
  "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

Satellite before / after

Project completion

Rule Definition

Triggering Data & citations

Possible Innocent Explanations

Where this project sits