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| Sl. No. | Name of Dam / Reservoir | District | Maximum Water Level (MWL) (metre) | Full Reservoir Level (metre) | Spillway Crest Level (metre) | Dead Storage (Million cubic metre) | Gross Storage (Million cubic metre) | Water level (metre) | Storage (Million cubic metre) | Percentage Storage respect to Gross Storage | Inflow (m3/Sec) | Outflow (m3/Sec) | Spillway release (m3/Sec) | Rainfall (mm) At 7 AM | Power House Discharge(m3/Sec) | Remarks |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13=14+16 | 14 | 15 | 16 | 17 |
| 1 | IDAMALAYAR | ERNAKULAM | 171.20 | 169.00 | 161.00 | 72.00 | 1089.80 | 135.00 | 292.000 | 26.79 | 9.61 | 52.66 | 0.00 | 9.60 | 52.66 | |
| 2 | IDUKKI | IDUKKI | 2408.5 ft | 2403 ft | 2373.6 ft | 536.81 | 1996.30 | 2343.80ft | 1129.950 | 56.60 | 5.44 | 52.01 | 0.00 | 1.60 | 52.01 | |
| 3 | KAKKI (ANATHODE ) | PATHANAMTHITTA | 982.160 | 981.460 | 975.360 | 7.63 | 454.20 | 948.07 | 108.000 | 23.78 | 9.66 | 35.32 | 0.00 | 4.00 | 35.32 | |
| 4 | PAMBA | PATHANAMTHITTA | 986.330 | 986.330 | 981.460 | 8.07 | 39.22 | 963.60 | 8.38 | 21.37 | 0.00 | Nil | NA | |||
| 5 | KUTTIYADI (KAKKAYAM) | KOZHIKODU | 2487 ft | 2487 ft | 2466 ft | 4.42 | 38.4 | 2452.40 ft | 15.670 | 40.81 | 13.21 | 7.30 | 0.00 | 47.00 | 7.30 | |
| 6 | BANASURASAGAR (K A SCHEME) | WAYANADU | 775.60 | 775.60 | 767.00 | 23.75 | 209.25 | 758.70 | 44.600 | 21.31 | 2.84 | 9.78 | 0.00 | 20.00 | NA | |
| 7 | PORINGALKUTHU | THRISSUR | 423.980 | 423.980 | 419.410 | 1.70 | 32.00 | 413.50 | 8.900 | 27.81 | 14.79 | 19.13 | 0.00 | 18.20 | 19.13 | |
| 8 | SHOLAYAR | THRISSUR | 2663 ft | 2663 ft | 2642 ft | 3.40 | 153.49 | 2604.90 ft | 40.510 | 26.39 | -10.09 | 12.50 | 0.00 | Nil | 12.50 | |
| 9 | KALLARKUTTY | IDUKKI | 456.900 | 456.590 | 450.200 | 0.370 | 6.800 | 453.50 | 4.880 | 71.76 | -22.05 | 13.60 | 0.00 | 13.60 | ||
| 10 | MADUPETTY | IDUKKI | 1599.59 | 1599.59 | 1594.71 | 0.85 | 55.23 | 1585.80 | 23.450 | 42.46 | 0.45 | 3.60 | 0.00 | 1.00 | 3.60 | |
| 11 | KUNDALA | IDUKKI | 1759.30 | 1758.696 | 1756.86 | 0.350 | 7.7868 | 1741.50 | 0.600 | 7.71 | 0.02 | 0.02 | 0.00 | Nil | 0.02 | Sluice opened at 11.Am on 27.04.20 |
| 12 | LOWER PERIYAR | IDUKKI | 256.00 | 253.00 | 237.74 | 0.80 | 5.30 | 250.00 | 4.090 | 77.17 | -19.01 | 15.89 | 0.00 | 25.00 | 15.89 | |
| 13 | PONMUDI | IDUKKI | 708.660 | 707.930 | 701.350 | 4.14 | 51.54 | 694.20 | 24.8168 | 48.15 | 9.46 | 19.14 | 0.00 | Nil | 19.14 | |
| 14 | MOOZHIYAR | PATHANAMTHITTA | 192.940 | 192.630 | 186.530 | 0.34 | 1.50 | 187.75 | 0.884 | 58.93 | 0.00 | 8.00 | ||||
| 15 | KALLAR | IDUKKI | 824.480 | 824.480 | 818.380 | 0.03 | 0.79 | |||||||||
| 16 | ERATTAYAR | IDUKKI | 754.380 | 754.380 | 748.280 | 0.266 | 5.35 | |||||||||
| 17 | SENGULAM (PUMPING STORAGE DAM) | IDUKKI | 849.69 | 847.640 | 847.64 | 0.320 | 0.710 | 846.60 | 0.460 | 64.79 | -3.35 | 4.04 | 0.00 | 2.00 | 4.04 | |
| 18 | ANAYIRANKAL | IDUKKI | 1210.070 | 1207.020 | 1207.020 | 0.85 | 50.68 | 1193.64 | 7.6762 | 15.15 | 0.00 | 8.43 | 0.00 | Nil | 8.43 | Discharge through river sluice |