General Information

GENERAL INFORMATION

Sl No. Parameter Value
1
Reservoir Name Willington
2
Type of Reservoir Large
3
location Collie
4
Latitude & Longitude 11°20’N & 79°00’E
5
Date of Commissioned 1959
6
District South Arcot
7
State Tamil Nadu
8
Period of Information Data not found
9
Purposes Irrigation purpose
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Controlling Authority Water supplies under a single authority
11
River System Periyaodai
12
Area 25,000 acres
13
Area at FRL 462 hectares
14
Capacity 35 gigalitres
15
Catchment Area 12950
16
Catchment Reservoir Area 7.0 km
17
Mean Depth 4.17 m
18
Gross Storage Capacity 3,330 million litres
19
Live Storage Capacity 73.40 Mcum
20
Others period 1913-23Basin VellarGross capacity at FRL M.cu.m73.4Water area at FRL (ha)1554Catchment FRL (C/A)8.3Morphoedaphic index (MEI)10.62Mean depth (m)4.17GPP (mgC/m3/hr) 78.1NPP (mgC/m3/hr) 39.1Respiration (mgC/m2/day) 46.9Av. GPP (mgC/m2/day) 343.5Net:Gross 0.50P:R 1.67 Area : MediumDepth : ShallowWater retention : SeasonalWater flow : FluviatilePrimary production : MediumFish yield : Low