In Padmanabhapuram Municipality combined water supply system with TWAD is maintained for which water is pumped from Tamirabarani River at Kallupalam which is situated at a distance of 16 km from Thuckalay.
| Name of the local Reservoir | Installed capacity | Quantity produced (MLD) | Quantity supplied (MLD) |
| Puyliyoorkurichi Asan kinaru | 0.2 | 0.2 | 0.2 |
| Padmanabhapuram | 0.2 | 0.2 | 0.2 |
| Govt. Hospital Thuckalay | 0.3 | 0.3 | 0.3 |
| Municipal Market,Thuckalay | 0.2 | 0.2 | 0.2 |
Treatment and Transmission
The water is pumped in the OHT and mixed with Chlorination before distribution
Storage and Distribution System
The overall supply is maintained 1.89 MLD through Public distribution system
House Service Connections
At present, the Padmanabhapuram Municipality has provided 3601 individual metered connections, of which 131 non-domestic connections and 3542 domestic connections. Nearly, 55 Public Fountains are provided to supply protected water supply in the town.
Demand and Supply
The overall demand and supply of water in Padmanabhapuram Municipality indicates that the existing supply of 1.89 MLD is not adequate for the present population.
| Ward No. | Water Supply House Connection Tape | Water supply public fountain | Water Supply Handpump | Drainage |
| 1 | 77 | 3 | 3 | 0.62 |
| 2 | 167 | 1 | 3 | 0.51 |
| 3 | 201 | 2 | 2 | 0.917 |
| 4 | 201 | 4 | 4 | 0.928 |
| 5 | 259 | 3 | 3 | 0.827 |
| 6 | 183 | 2 | 4 | 0.576 |
| 7 | 175 | 4 | 3 | 0.675 |
| 8 | 121 | 3 | 2 | 0.686 |
| 9 | 139 | 3 | 3 | 0.817 |
| 10 | 198 | 3 | 7 | 0.615 |
| 11 | 188 | 2 | 2 | 0.627 |
| 12 | 191 | 1 | 2 | 0.68 |
| 13 | 213 | 4 | 3 | 0.876 |
| 14 | 177 | 3 | 2 | 0.625 |
| 15 | 179 | 2 | 3 | 0.837 |
| 16 | 129 | 2 | 2 | 0.688 |
| 17 | 173 | 2 | 5 | 0.387 |
| 18 | 193 | 1 | 3 | 0.876 |
| 19 | 158 | 3 | 2 | 0.51 |
| 20 | 112 | 2 | 4 | 0.457 |
| 21 | 108 | 5 | 3 | 0.41 |
| Total | 3542 | 55 | 65 | 14.14 |
Water Supply Position
STATUS OF WATER SUPPLY POSITION
| Sl.No. | Name of the Municipality | Present Population | Quantity of water supplied | Total Quantity of water supplied | Lpcd | Status of water supply | Frequency of supply | ||||||||
| From regular schemes | Local sources | From mini | From Bore wells | From lorry supply | Other Source | ||||||||||
| Pp | |||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| 1 | Padmanabhapuram | 21191 | 18.00 lakhs. | 0.04 | 0.02 | – | – | – | 18.06 lakhs. | 80 | Comfortable | – | – | – | once in three days |