Barangay
Mangaan
Mangaan, Santol, La Union, Region I (Ilocos Region). Rural. Population 1,475 (2024 POPCEN).
PSGC 0103318005 · Source: PSA, PSGC 3Q 2026 Publication Datafile
Public records linked to Mangaan
Counts include this barangay and every LGU under it. Each record carries how it was linked and a confidence level; figures are as recorded by the source and exclude single amounts of ₱10B+ held for verification. They are not findings.
DPWH infrastructure projects
Contracts on the DPWH Transparency portal, placed by coordinates first. Source: DPWH Transparency portal
5 records · ₱353,732,794.40
- Construction/Maintenance of Flood Mitigation Structures and Drainage Systems - Construction of Flood Control Structure Along Santol-San Gabriel-Kapangan Road, Maluyo River, Barangay Mangaan, Santol La Union₱146,290,124.55 · 2025 · medium confidence (project coordinates inside the barangay boundary)
- Local Infrastructure Program - Construction of Missing Links / New Roads - Santol(La Union)-Kibungan(Benguet) Road₱99,000,000.00 · 2020 · medium confidence (project coordinates inside the barangay boundary)
- Construction of Concrete Road- Access Road Leading to Municipal Tree Park and All Pavilion and Retreat Center (Poblacion), Sasaba Rice Terraces, Bimmulalakaw, and Pimmalangka Waterfalls, Gongo (Native Tomb) and Amburayan River, Brgy. Corrooy, Santol, L.U.₱74,805,951.92 · 2018 · medium confidence (project coordinates inside the barangay boundary)
- Const/Imprv'T of Access Rds Leading to Declared Tourism Destinations-Access Rd Leading to Municipaltreepark& Allpavillion& Retreatcenter (Pob),Sasabariceterraces, Bimmulalakaw&Pimmalangka Waterfalls,Gongo (Nativetomb)&Amburayanriver,Brgy.Corrooy,Santol,Lu₱19,600,000.00 · 2019 · medium confidence (project coordinates inside the barangay boundary)
- Const/Impv'Tofaccessrdsleadingtodeclared Tourism Destinations-Accessrdsleadingto Municipaltreepark&All Pavilion&Retreat Center(Pob.)Sasabarice Terraces,Bimmulalakaw&Pimmalangka Waterfalls,Gongo(Native Tomb)&Amburayan River Control,Brgy.Corrooy,Santol,Lu₱14,036,717.93 · 2020 · medium confidence (project coordinates inside the barangay boundary)
How linked: 5 by project coordinates inside the barangay boundary.
Contracts this LGU awarded (PhilGEPS)
PhilGEPS awards where the procuring entity is this LGU. Source: PhilGEPS award notices
1 record · ₱3,383,731.08
- Barangay Mangaan - Santol, La Union₱3,383,731.08 · high confidence (the LGU itself is the buyer)
How linked: 1 by the LGU itself is the buyer.
PhilGEPS awards delivered here (all agencies)
Awards by any agency whose area of delivery is this province. PhilGEPS records delivery areas at province level only. Source: PhilGEPS award notices
Not yet linked to Mangaan itself. This shows the province figure for La Union.
50,591 records · ₱88,753,896,199.93
50,538 placed at La Union level itself; the rest in LGUs under it.
- La Union₱88,753,896,199.93 · 50,538 awards · high confidence (area of delivery is this province only)
- Ilocos Norte, Ilocos Sur, La Union, Pangasinan₱32,735,719.44 · 12 awards · low confidence (area of delivery lists several provinces)
- Benguet, Ilocos Norte, Ilocos Sur, La Union, Pangasinan₱10,270,956.00 · 6 awards · low confidence (area of delivery lists several provinces)
- Benguet, Ilocos Norte, Ilocos Sur, La Union, Mountain Province, Pangasinan₱9,311,352.00 · 6 awards · low confidence (area of delivery lists several provinces)
- La Union, Laguna₱5,572,953.40 · 6 awards · low confidence (area of delivery lists several provinces)
- Abra, Benguet, Ilocos Norte, Ilocos Sur, La Union₱4,869,600.00 · 6 awards · low confidence (area of delivery lists several provinces)
How linked: 50,538 by area of delivery is this province only; 53 by area of delivery lists several provinces.
Local Government Support Fund releases
DBM LGSF project releases by province, city/municipality and barangay. Source: DBM COMPASS
Not yet linked to Mangaan itself. This shows the municipality figure for Santol.
7 records · ₱24,300,000.00
- Improvement of Multipurpose Building in Barangay Puguil, Santol, La Union, Region I (Ilocos Region)₱5,000,000.00 · 2025 · high confidence (location columns in the DBM release)
- Assistance to Indigent Individuals Or Families - Food Assistance₱5,000,000.00 · 2026 · high confidence (location columns in the DBM release)
- Construction of Multi-Purpose Building in Barangay Poblacion, Santol₱5,000,000.00 · 2024 · high confidence (location columns in the DBM release)
- Rehabilitation of Mangaan-Lettac Sur Road₱4,000,000.00 · 2022 · high confidence (location columns in the DBM release)
- Rehabilitation of Cabaroan Bridge₱3,000,000.00 · 2022 · high confidence (location columns in the DBM release)
- Rehabilitation of Poblacion-Bilagan Road (Camp Tagpuan Section)₱2,000,000.00 · 2022 · high confidence (location columns in the DBM release)
How linked: 7 by location columns in the DBM release.
GAA budget lines naming this place
General Appropriations Act lines whose text ends in this city/municipality and province. Source: DBM General Appropriations Act
1 record · ₱155,000,000.00
- Construction of Flood Control Structure Along Santol-San Gabriel-Kapangan Road, Maluyo River, Barangay Mangaan, Santol, La Union₱155,000,000.00 · 2025 · medium confidence (GAA line text names the place)
How linked: 1 by GAA line text names the place.
COA annual audit reports
Not yet linked: the COA reports loaded so far cover national agencies only. LGU audit reports are published at coa.gov.ph.
Published anomaly flags
Patterns in the linked records that reviewers checked and published. A flag is a question worth asking, not a finding of wrongdoing.
No published flags are linked to Mangaan itself: none of the DPWH projects, PhilGEPS awards or contractors matched to it carry a reviewed flag yet. Showing the nearest parent LGU that has some, Santol.
- High Concurrent Workload for One ContractorSt Timothy Const CorpContractor: St Timothy Const Corp
- High Concurrent Workload for One ContractorAnore ConstContractor: Anore Const
- High Concurrent Workload for One ContractorGreat Pacific Builders and Gen Contractor IncContractor: Great Pacific Builders and Gen Contractor Inc
Contractors on linked DPWH projects
All 4 contractors on DPWH projects linked to Mangaan and the LGUs under it. Click a column to sort.
| St Matthew Gen Contractor | 1 | ₱146,290,124.55 | 0 |
| A P B Const | 1 | ₱99,000,000.00 | 0 |
| H G Lopez Const | 1 | ₱74,805,951.92 | 0 |
| Raphaeil Const | 2 | ₱33,636,717.93 | 0 |
Costs as recorded by DPWH; single amounts of ₱10B+ are held for verification and excluded. Flags count published automated anomalies on this contractor's projects or awards here, plus flags on the contractor itself; they are not findings.

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QR codes for Mangaan
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