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: 6 contracts awarded to PHILSOUTH BUILDERS INC FORMERLY:PHILSOUTH BUILDERS by the same office started within 31 days, each between ₱42.5M and ₱50M (just under the ₱50M threshold), with 4 in the same municipality. It is possible that multiple river control projects were needed in different locations at the same time due to local flood risks.

Public record entityConstruction of San Francisco River Control, Sta Catalina, Negros Oriental

LocationSANTA CATALINA (NEGROS ORIENTAL), NEGROS ORIENTAL, Region VIIContract 22HL0094

Amount₱49,500,000.00 sumbong source

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

Satellite before / after

Esri Wayback · ~0.46 mLocation approximate

Before capture: 2019-01-17 · Maxar

After capture: 2019-01-17 · Vantor

No imagery since construction began — latest capture 2019-01-17

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: six contracts, all just under the ₱50M threshold, awarded to the same contractor by the same DEO within 31 days, with four in the same municipality. The titles are similar in type (river control structures), but the C5 rule expects different sitios/rivers/barangays, which is the case here (Sta. Catalina and Valencia, with different river names). 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 San Francisco River Control, Sta Catalina, Negros Oriental22HL0094Flood control	100%	January 9, 2023	January 9, 2023	—	completedsumbong source

Start: April 7, 2022 · 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": "Negros Oriental 3rd District Engineering Office",
  "contractId": "22HL0094",
  "contractor": "PHILSOUTH BUILDERS INC FORMERLY:PHILSOUTH BUILDERS",
  "windowDays": 120,
  "clusterSize": 6,
  "thresholdPhp": 50000000,
  "contractCostPhp": 49500000,
  "averageTitleSimilarity": 0.7024793499459631
}

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