| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| PHASE_1. Phase 1: Pipe Laying | |||
| 1.1 | Method statement review and approval by QC before laying starts Acceptance: Method statement signed, QC approval obtained | Method approval | |
| 1.2 | WITNESS POINT: Trench preparation and pipe laying - QC present during laying Acceptance: QC observes laying, bend radius verified, gradient correct | QC witnessing | |
| 1.3 | As-laid drawing prepared showing actual routing and depths Acceptance: Drawing updated with actual conditions, signed by QC | Record drawing | |
| PHASE_2. Phase 2: Joint Inspection | |||
| 2.1 | All joints visually inspected; no seepage observed at low pressure Acceptance: All joints dry, no water droplets, documentation complete | Visual inspection | |
| PHASE_3. Phase 3: Pressure Testing | |||
| 3.1 | HOLD POINT: Hydrostatic pressure test (1.5×design pressure, 30 min) - zero leakage required Acceptance: Test passed, pressure maintained, no visible leakage, test report signed | Pressure test approval | |