| Reservoir capacity dated 15-Sep | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Reservoir | Total capacity (mcft) | Capacity on mcft | ||||||||
| 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | ||
| Poondi | 3231.00 | - | 0.46 | 2.01 | 84.03 | 16.9 | 74 | 2.5 | 74.8 | 37.7 |
| Redhills | 3300.00 | - | 0 | 66.33 | 90.36 | 88.8 | 58.9 | 68.5 | 90.2 | 56 |
| Cholavaram | 1081.00 | - | 0 | 8.51 | 59.76 | 12.4 | 11.7 | 5.4 | 16.2 | 13.78 |
| Chembarampakkam | 3645.00 | - | 0 | 44.12 | 75.88 | 84.9 | 72.3 | 31.8 | 35.5 | 42.61 |
| Thervoy Kandigai | 500.00 | - | - | - | 93.4 | 100 | 64.2 | 59.8 | 90.4 | 56.2 |
| Kuppanatham | 700.00 | - | - | - | - | 85.6 | 23.6 | 79.7 | 81.6 | 16.68 |
| Mirugandanadhi | 87.23 | - | - | - | - | 65 | 32.2 | 75.5 | 54.9 | 11.11 |
| Shenbagathope | 287.20 | - | - | - | - | 60.4 | 17.9 | 76.2 | 54.3 | 15.77 |
| Mordhana | 261.36 | - | - | - | - | 100 | 97.7 | 16.4 | 77.3 | 11.95 |
| Rajathopekanar | 20.52 | - | - | - | - | 16.6 | 0.6 | 6 | 1.5 | 5.95 |
| Vidur | 605.00 | - | - | - | - | 12.1 | 5.7 | 25.8 | 8.1 | 3.27 |
| Thumbalahalli | 131.00 | - | - | - | - | 88.2 | 36.1 | 8.4 | 0 | 10.95 |
| Vaaniar | 418.00 | - | - | - | - | 94 | 18.9 | 48.2 | 20.9 | 0 |
| Varattar Vallima | 110.33 | - | - | - | - | 54.2 | 9.6 | 72.7 | 6.4 | 7.12 |
| Kelavarapalli | 481.00 | - | - | - | - | 67.4 | 10.4 | 63.5 | 77.8 | 74.63 |
| Krishnagiri | 1666.30 | - | 29.17 | 34.45 | 87.8 | 87.8 | 88.8 | 82.4 | 84.4 | 63.07 |
| Pambar | 280.00 | - | - | - | - | 86.9 | 44.3 | 61.1 | 35 | 12.3 |
| Sulagirichinnar | 81.20 | - | - | - | - | 100 | 45.3 | 0 | 6.2 | 21.58 |
| Andiappanur Odai | 112.20 | - | - | - | - | 100 | 67.9 | 73.2 | 100 | 49.96 |
| Sathanur | 7321.00 | - | 10 | 18 | 24.6 | 92.1 | 81.9 | 41.1 | 85.7 | 27.63 |
| Kariakovil | 190.00 | - | - | - | - | 47.9 | 4 | 4 | 30.6 | 10.21 |
| Anaimadavu | 267.00 | - | - | - | - | 40.3 | 12.6 | 39 | 35.3 | 8.94 |
| Gomuki | 560.96 | - | - | - | - | 79 | 41.6 | 8.6 | 38.4 | 12.04 |
| Manimukthanadhi | 736.50 | - | - | - | - | 22.1 | 6.7 | 0 | 2.2 | 0 |
| Willingdon | 2580.00 | - | - | - | - | 15.2 | 28.5 | 18.1 | 23.6 | 0 |
| Chinnar | 500.00 | - | - | - | - | 98 | 68.1 | 14.3 | 41.9 | 3.83 |
| Kesarigulli | 134.00 | - | - | - | - | 92.1 | 65 | 40.5 | 30.8 | 14.9 |
| Nagavathi | 156.03 | - | - | - | - | 100 | 20.5 | 14.5 | 23.7 | 20.48 |
| Thoppaiyar | 298.00 | - | - | - | - | 52.4 | 12.1 | 6.8 | 21.9 | 3.04 |
| Mettur | 93470.00 | - | 100 | 58.81 | 39.44 | 100 | 14.3 | 85.7 | 99.5 | 53.7 |
| Bhavani | 32800.00 | - | 78.97 | 88.04 | 92.43 | 92.4 | 40.4 | 73.4 | 87.6 | 15.88 |
| Varattupallam | 139.60 | - | - | - | - | 99.9 | 36.5 | 97.4 | 39.1 | 16.29 |
| Perumpallam | 115.81 | - | - | - | - | 56.9 | 28.9 | 0.9 | 23.2 | 34.01 |
| Gunderipallam | 108.21 | - | - | - | - | 70 | 31.9 | 92.3 | 21.6 | 21.01 |
| Noyyal Orathupalayam | 616.00 | - | - | - | - | 6.5 | 0.2 | 0 | 0.9 | 1.2 |
| Uppar | 576.00 | - | - | - | - | 8.7 | 7.3 | 0 | 7.9 | 3.47 |
| Amaravathi | 4047.00 | - | 88.51 | 95.73 | 97.06 | 96.8 | 43.4 | 98.9 | 96.7 | 19.13 |
| Nallathangal Odai | 223.01 | - | - | - | - | 4.4 | 16.4 | 2 | 1.3 | 0 |
| Vattamalaikarai | 268.00 | - | - | - | - | 2.3 | 2.3 | 0.7 | 2.2 | 0.56 |
| Noyyal Athupalayam | 235.52 | - | - | - | - | 84.9 | 13.7 | 72.6 | 16.6 | 2.58 |
| Ponnaiyar | 119.70 | - | - | - | - | 19.7 | 12.5 | 4.9 | 24.9 | 17.03 |
| Palar Perunthalar | 1524.00 | - | - | - | - | 92.9 | 14.9 | 46.8 | 3.5 | 12.77 |
| Parappalar | 197.95 | - | - | - | - | 85.6 | 17.9 | 31.7 | 27.2 | 7.58 |
| Varadhamanadhi | 110.50 | - | - | - | - | 100.4 | 100 | 100 | 69 | 18.7 |
| Nanganjiar | 254.38 | - | - | - | - | 61 | 34.7 | 9.3 | 21.1 | 4.1 |
| Kodaganar | 434.04 | - | - | - | - | 18.9 | 0 | 47.6 | 40.3 | 13.83 |
| Kuthiraiyar | 253.00 | - | - | - | - | 92.7 | 36.5 | 69.6 | 19.9 | 14.61 |
| Uppar Trichy | 80.00 | - | - | - | - | 0 | 5.7 | 0 | 0 | 0 |
| Siddhamalli | 226.80 | - | - | - | - | 0 | 0 | 0 | 0 | 0 |
| Veeranam | 1465.00 | - | 89.42 | 79.32 | 71.13 | 100 | 55.8 | 38.5 | 96.7 | 12.22 |
| Lower Nirar | 275.00 | - | - | - | - | 40.8 | 39.7 | 90.4 | 39.5 | 39.45 |
| Upper Nirar | 39.00 | - | - | - | - | 2.4 | 0 | 0 | 1.8 | 1.79 |
| Sholayar | 5046.00 | - | 101.27 | 101.86 | 102.08 | 101.6 | 31.1 | 99.7 | 100.3 | 30.94 |
| Parambikulam | 13408.00 | - | 94.82 | 95.2 | 99.31 | 98 | 51.5 | 99.3 | 99.6 | 68.92 |
| Thunakadavu Peruvaripalla | 1177.00 | - | - | - | - | 99.9 | 98.3 | 99.8 | 99.4 | 71.53 |
| Aliyar | 3864.00 | - | 80.69 | 86.23 | 99.46 | 97.6 | 11.1 | 98.7 | 98.3 | 20.65 |
| Thirumurthi | 1744.00 | - | 34.98 | 70.13 | 64.28 | 74.7 | 68.9 | 76.4 | 78.2 | 40.6 |
| Periyar dam | 7666.00 | - | 60.01 | 50.57 | 64.32 | 85.4 | 32.3 | 67.2 | 70.9 | 32.29 |
| Vaigai | 6091.00 | - | 45.03 | 64.54 | 51.04 | 97.4 | 27.2 | 63.9 | 90.8 | 16.29 |
| Shanmuganadhi | 79.57 | - | - | - | - | 87.4 | 40.4 | 73.4 | 87 | 21.21 |
| Manjalar | 487.00 | - | - | - | - | 89.4 | 69.9 | 89.4 | 32.9 | 9.45 |
| Sothuparai | 100.00 | - | - | - | - | 100 | 37.4 | 93.3 | 27.2 | 18.99 |
| Marudhanadhi | 188.50 | - | - | - | - | 91 | 59.2 | 89.7 | 17.2 | 1.59 |
| Sirumalaiyar | 15.50 | - | - | - | - | 63.6 | 0 | 0 | 0 | 0 |
| Sathaiyyar | 56.00 | - | - | - | - | 100 | 46.7 | 57.5 | 4.9 | 0 |
| Pilavukkal Periyar | 192.00 | - | - | - | - | 57.4 | 23.4 | 23.8 | 12.3 | 12.11 |
| Pilavukkal Kovilar | 133.00 | - | - | - | - | 29.9 | 3 | 25.6 | 5.8 | 4.68 |
| Sasthakovil | 36.47 | - | - | - | - | 78.9 | 0 | 67.2 | 43.2 | 0 |
| Vembakottai | 398.70 | - | - | - | - | 28.9 | 24.8 | 19.5 | 11.3 | 3.06 |
| Anaikuttam | 125.75 | - | - | - | - | 0.3 | 0 | 0 | 0 | 0 |
| Kullursandai | 126.78 | - | - | - | - | 94.5 | 81.6 | 72.1 | 45.7 | 59.69 |
| Golwarpatti | 176.00 | - | - | - | - | 3.7 | 5.8 | 12.2 | 5.2 | 0 |
| Irrukkangudi | 500.00 | - | - | - | - | 19.3 | 1.9 | 13.5 | 15.2 | 2.3 |
| Adavinainar kovil | 174.00 | - | - | - | - | 100.8 | 45.6 | 66.4 | 86.2 | 58.14 |
| Gundar | 18.43 | - | - | - | - | 100 | 75.9 | 100 | 98.3 | 80.52 |
| Karuppanadhi | 120.84 | - | - | - | - | 84.4 | 5.7 | 45 | 41.8 | 27.66 |
| Gatana | 335.00 | - | - | - | - | 70.9 | 18.5 | 31 | 19.2 | 51.24 |
| Ramanadhi | 119.80 | - | - | - | - | 88.4 | 28.3 | 51.3 | 28.3 | 35.42 |
| Manimuthar | 5511.00 | - | 10.83 | 25.86 | 20.89 | 20.4 | 8.4 | 24.6 | 56.2 | 18.25 |
| Vadakku Pachaiyaru | 442.00 | - | - | - | - | 6.5 | 2.1 | 8.5 | 4.7 | 1.77 |
| Vandal Odai | 58.00 | - | - | - | - | 2.1 | 0 | 0 | 0 | 0 |
| Nambiar | 82.17 | - | - | - | - | 19 | 19 | 21.2 | 21.2 | 13.14 |
| Kodumudiyar | 121.84 | - | - | - | - | 77.6 | 20 | 28.1 | 7.1 | 3.32 |
| Pechipparai | 4350.00 | - | 34.3 | 48 | 84.55 | 84.1 | 24.7 | 87.3 | 71 | 35.68 |
| Perunchani | 2890.00 | - | 65.05 | 61.04 | 53.36 | 84.7 | 13.9 | 67.3 | 45.8 | 29.24 |
| Chittar I | 393.00 | - | - | - | - | 59.5 | 55 | 67 | 22.1 | 30.55 |
| Chittar II | 600.00 | - | - | - | - | 61.5 | 57.3 | 69.3 | 23.8 | 32.51 |
| Mabazhathuraiyar | 44.54 | - | - | - | - | 60.5 | 8.8 | 98.6 | 10 | 53.23 |
| Poigaiyar | 104.85 | - | - | - | - | 25.9 | 14.5 | 22.6 | 23.3 | 22.91 |