| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| A. CONSTRUCTION PROCEDURE | |||
| A1 | Step 1: Pit excavated to design depth and diameter; ground conditions assessed Acceptance: Pit ready per design | Cl. 5 — Excavation | |
| A2 | Step 2: RCC or brick lining constructed with proper benching and sealing Acceptance: Watertight lining completed | Cl. 5 — Lining | |
| A3 | Step 3: Step irons installed, access cover fitted, ventilation provided Acceptance: Accessory installation complete | Cl. 7-8 — Access | |
| A4 | Step 4: Water test (24 hours) performed; watertightness verified Acceptance: Test passed, zero leakage | Cl. 9 — Testing | |