| Reservoir capacity dated 04-Apr | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Reservoir | Total capacity (mcft) | Capacity on mcft | ||||||||
| 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | ||
| Poondi | 3231.00 | - | 9.94 | - | 59.76 | - | 53 | 49.2 | 78.7 | 87.47 |
| Redhills | 3300.00 | - | 8.58 | - | 91.7 | - | 72.4 | 85.1 | 77.3 | 80.82 |
| Cholavaram | 1081.00 | - | 3.61 | - | 70.68 | - | 75.6 | 20.2 | 12.7 | 49.86 |
| Chembarampakkam | 3645.00 | - | 0.25 | - | 82.88 | - | 85.5 | 75.3 | 79.6 | 78.79 |
| Thervoy Kandigai | 500.00 | - | - | - | - | - | 99.8 | 85.8 | 76.4 | 89 |
| Kuppanatham | 700.00 | - | - | - | - | - | 76.9 | 15.3 | 100 | 50.13 |
| Mirugandanadhi | 87.23 | - | - | - | - | - | 68.8 | 46.1 | 89.5 | 51.71 |
| Shenbagathope | 287.20 | - | - | - | - | - | 84 | 50 | 80.3 | 77.36 |
| Mordhana | 261.36 | - | - | - | - | - | 98.9 | 94.8 | 25.1 | 98.85 |
| Rajathopekanar | 20.52 | - | - | - | - | - | 1.8 | 14.6 | 18.6 | 61.94 |
| Vidur | 605.00 | - | - | - | - | - | 25.7 | 27.9 | 50 | 10.88 |
| Thumbalahalli | 131.00 | - | - | - | - | - | 58.7 | 20.6 | 0 | 35.06 |
| Vaaniar | 418.00 | - | - | - | - | - | 33.5 | 0 | 60.4 | 40.01 |
| Varattar Vallima | 110.33 | - | - | - | - | - | 8.2 | 43.4 | 94 | 27.68 |
| Kelavarapalli | 481.00 | - | - | - | - | - | 78.8 | 10.2 | 73.6 | 78.83 |
| Krishnagiri | 1666.30 | - | 5.34 | - | 39.97 | - | 78.2 | 48.4 | 74.6 | 69.98 |
| Pambar | 280.00 | - | - | - | - | - | 68.2 | 43.4 | 85.4 | 67.15 |
| Sulagirichinnar | 81.20 | - | - | - | - | - | 91.9 | 6.4 | 19.2 | 69.15 |
| Andiappanur Odai | 112.20 | - | - | - | - | - | 88.9 | 68.6 | 80.7 | 88.01 |
| Sathanur | 7321.00 | - | 12.35 | - | 43.82 | - | 0.4 | 30.9 | 49.1 | 52.4 |
| Kariakovil | 190.00 | - | - | - | - | - | 42.7 | 10.1 | 97 | 29.71 |
| Anaimadavu | 267.00 | - | - | - | - | - | 11.8 | 5 | 95.6 | 8.8 |
| Gomuki | 560.96 | - | - | - | - | - | 20.5 | 0 | 24.2 | 9.63 |
| Manimukthanadhi | 736.50 | - | - | - | - | - | 0 | 3.4 | 36.8 | 0 |
| Willingdon | 2580.00 | - | - | - | - | - | 22.6 | 15 | 34.1 | 11.45 |
| Chinnar | 500.00 | - | - | - | - | - | 78.3 | 18.1 | 27.2 | 30.93 |
| Kesarigulli | 134.00 | - | - | - | - | - | 75.5 | 35.1 | 33.1 | 31.9 |
| Nagavathi | 156.03 | - | - | - | - | - | 73.9 | 18.8 | 22.3 | 59.01 |
| Thoppaiyar | 298.00 | - | - | - | - | - | 33.2 | 8.3 | 46.3 | 8.9 |
| Mettur | 93470.00 | - | 26.92 | - | 68.11 | - | 73.2 | 25.6 | 80.7 | 48.56 |
| Bhavani | 32800.00 | - | 27.73 | - | 66.49 | - | 62.9 | 11.9 | 40.9 | 45.01 |
| Varattupallam | 139.60 | - | - | - | - | - | 73.6 | 49.3 | 57.1 | 57.96 |
| Perumpallam | 115.81 | - | - | - | - | - | 77.5 | 3.3 | 41.3 | 74.62 |
| Gunderipallam | 108.21 | - | - | - | - | - | 100 | 62.5 | 37.4 | 93.85 |
| Noyyal Orathupalayam | 616.00 | - | - | - | - | - | 0.8 | 0.2 | 0.7 | 0.81 |
| Uppar | 576.00 | - | - | - | - | - | 26.7 | 3.9 | 11.7 | 7.9 |
| Amaravathi | 4047.00 | - | 6.23 | - | 92.78 | - | 33.7 | 24.5 | 26.4 | 17.05 |
| Nallathangal Odai | 223.01 | - | - | - | - | - | 63.3 | 7.4 | 6.7 | 0.04 |
| Vattamalaikarai | 268.00 | - | - | - | - | - | 2.3 | 0.6 | 6.6 | 3.58 |
| Noyyal Athupalayam | 235.52 | - | - | - | - | - | 29.1 | 1.9 | 16.7 | 5.85 |
| Ponnaiyar | 119.70 | - | - | - | - | - | 17.1 | 8.8 | 37.4 | 23.91 |
| Palar Perunthalar | 1524.00 | - | - | - | - | - | 41.1 | 26.4 | 28.5 | 24.93 |
| Parappalar | 197.95 | - | - | - | - | - | 77.2 | 32.6 | 50.6 | 38.44 |
| Varadhamanadhi | 110.50 | - | - | - | - | - | 21.6 | 27.1 | 62.7 | 25.33 |
| Nanganjiar | 254.38 | - | - | - | - | - | 95.7 | 29.3 | 42.8 | 8.16 |
| Kodaganar | 434.04 | - | - | - | - | - | 23.6 | 63.6 | 79.3 | 33.93 |
| Kuthiraiyar | 253.00 | - | - | - | - | - | 49.3 | 40.2 | 41.3 | 41.8 |
| Uppar Trichy | 80.00 | - | - | - | - | - | 5.7 | 0 | 0 | 0 |
| Siddhamalli | 226.80 | - | - | - | - | - | 0 | 0 | 3.4 | 0 |
| Veeranam | 1465.00 | - | 37.27 | - | 0 | - | 52.8 | 0 | 45.3 | 53.58 |
| Lower Nirar | 275.00 | - | - | - | - | - | 38.2 | 37.8 | 42.7 | 38.62 |
| Upper Nirar | 39.00 | - | - | - | - | - | 0 | 0 | 0 | 0.77 |
| Sholayar | 5046.00 | - | 6.72 | - | 0.36 | - | 2.7 | 1.3 | 0.4 | 0.4 |
| Parambikulam | 13408.00 | - | 43.92 | - | 53.95 | - | 20.4 | 21.2 | 64.2 | 75.28 |
| Thunakadavu Peruvaripalla | 1177.00 | - | - | - | - | - | 86.9 | 87.8 | 99.7 | 99.78 |
| Aliyar | 3864.00 | - | 20.08 | - | 53.62 | - | 13.6 | 11.4 | 18.8 | 17.11 |
| Thirumurthi | 1744.00 | - | 44.84 | - | 47.76 | - | 68.1 | 74.9 | 43.5 | 51.09 |
| Periyar dam | 7666.00 | - | 17.43 | - | 53.25 | - | 25.8 | 24.2 | 18.5 | 20.23 |
| Vaigai | 6091.00 | - | 19.8 | - | 72.55 | - | 43.2 | 61.9 | 48.4 | 8.5 |
| Shanmuganadhi | 79.57 | - | - | - | - | - | 23 | 21.2 | 39.3 | 21.21 |
| Manjalar | 487.00 | - | - | - | - | - | 30.6 | 39.4 | 17.6 | 54.06 |
| Sothuparai | 100.00 | - | - | - | - | - | 19.4 | 70.9 | 27.1 | 62.7 |
| Marudhanadhi | 188.50 | - | - | - | - | - | 48 | 45 | 48.8 | 39.52 |
| Sirumalaiyar | 15.50 | - | - | - | - | - | 0.3 | 0 | 0 | 0 |
| Sathaiyyar | 56.00 | - | - | - | - | - | 8926.8 | 15 | 70.3 | 5.39 |
| Pilavukkal Periyar | 192.00 | - | - | - | - | - | 21.8 | 32.4 | 30.9 | 21.44 |
| Pilavukkal Kovilar | 133.00 | - | - | - | - | - | 5.8 | 57.7 | 14.9 | 8.3 |
| Sasthakovil | 36.47 | - | - | - | - | - | 12.3 | 31.1 | 34 | 54.68 |
| Vembakottai | 398.70 | - | - | - | - | - | 45.4 | 68.2 | 53.8 | 51.33 |
| Anaikuttam | 125.75 | - | - | - | - | - | 0 | 9.7 | 0 | 0.8 |
| Kullursandai | 126.78 | - | - | - | - | - | 77.6 | 89.7 | 91.4 | 83.24 |
| Golwarpatti | 176.00 | - | - | - | - | - | 22.7 | 35.7 | 25.9 | 4.57 |
| Irrukkangudi | 500.00 | - | - | - | - | - | 14.6 | 48.1 | 36 | 28.17 |
| Adavinainar kovil | 174.00 | - | - | - | - | - | 0.2 | 24.8 | 4.3 | 17.17 |
| Gundar | 18.43 | - | - | - | - | - | 5.8 | 2 | 28.4 | 12.75 |
| Karuppanadhi | 120.84 | - | - | - | - | - | 0.2 | 28.5 | 0.6 | 8.6 |
| Gatana | 335.00 | - | - | - | - | - | 6.1 | 6.1 | 23.6 | 17.56 |
| Ramanadhi | 119.80 | - | - | - | - | - | 3.2 | 18.5 | 17.2 | 0 |
| Manimuthar | 5511.00 | - | 40.7 | - | 59.97 | - | 37.2 | 56.4 | 45.5 | 44.04 |
| Vadakku Pachaiyaru | 442.00 | - | - | - | - | - | 2.1 | 4.9 | 3 | 1.77 |
| Vandal Odai | 58.00 | - | - | - | - | - | 18.2 | 100 | 25.5 | 1.84 |
| Nambiar | 82.17 | - | - | - | - | - | 19 | 20.5 | 21.2 | 24.84 |
| Kodumudiyar | 121.84 | - | - | - | - | - | 7.4 | 10.4 | 4 | 2.65 |
| Pechipparai | 4350.00 | - | 0.83 | - | 69.43 | - | 59 | 80.8 | 45.3 | 29.36 |
| Perunchani | 2890.00 | - | 6.85 | - | 34.22 | - | 12.7 | 27.4 | 6.8 | 3.46 |
| Chittar I | 393.00 | - | - | - | - | - | 35.8 | 51.8 | 11.6 | 20.68 |
| Chittar II | 600.00 | - | - | - | - | - | 38.1 | 54.1 | 12.7 | 22.22 |
| Mabazhathuraiyar | 44.54 | - | - | - | - | - | 8 | 32.1 | 14.6 | 22.79 |
| Poigaiyar | 104.85 | - | - | - | - | - | 21.6 | 25.6 | 22.6 | 26.49 |