|Native name||வவுனி குளம் (Tamil)|
|River sources||Pali Aru|
|Catchment area||88 sq mi (228 km2)|
|Managing agency||Department of Irrigation,|
Northern Provincial Council
|Water volume||35,300 acre⋅ft (43,541,909 m3)|
Vavuni Kulam (Tamil : வவுனி குளம் Vavuṉi Kuḷam) is an irrigation tank in northern Sri Lanka, approximately 2 mi (3 km) south east of Mallavi.
Tamil is a Dravidian language predominantly spoken by the Tamil people of India and Sri Lanka, and by the Tamil diaspora, Sri Lankan Moors, Douglas, and Chindians. Tamil is an official language of three countries: India, Sri Lanka and Singapore. It is also the official language of the Indian state of Tamil Nadu and the Union Territory of Puducherry. It is used as one of the languages of education in Malaysia, along with English, Malay and Mandarin. Tamil is spoken by significant minorities in the four other South Indian states of Kerala, Karnataka, Andhra Pradesh and Telangana and the Union Territory of the Andaman and Nicobar Islands. It is one of the 22 scheduled languages of India.
An irrigation tank or tank is an artificial reservoir of any size. They are mainly found in India.. It can also have a natural or man-made spring included as part of a structure. Tanks are part of an ancient tradition of harvesting and preserving the local rainfall and water from streams and rivers for later use, primarily for agriculture and drinking water, but also for sacred bathing and ritual. Often a tank was constructed across a slope so to collect and store water by taking advantage of local mounds and depressions. Tank use is especially critical in parts of South India without perennial rainfall where water supply replenishment is dependent on a cycle of dry seasons alternating with monsoon seasons.
Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, is an island country in South Asia, located in the Indian Ocean to the southwest of the Bay of Bengal and to the southeast of the Arabian Sea. The island is geographically separated from the Indian subcontinent by the Gulf of Mannar and the Palk Strait. The legislative capital, Sri Jayawardenepura Kotte, is a suburb of the commercial capital and largest city, Colombo.
The tank on Pali Aru was earlier knowns as Peli Vapi. 88 sq mi (228 km2), commenced in 1954 with the support of the Australian government.Restoration of the tank, which had a catchment area of
Pali Aru is a river in Northern Province, Sri Lanka. The river rises in northern Vavuniya District, near Puliyankulam, before flowing north/northwest through Vavuniya District, Mullaitivu District and Mannar District. The river empties into Palk Bay. The southern section of the river is sometimes known as Chamalankulam Aru.
In human geography, a catchment area is the area from which a city, service or institution attracts a population that uses its services. For example, a school catchment area is the geographic area from which students are eligible to attend a local school.
By the late 1960s the tank's bund was 2 mi (3 km) long and 24 ft (7 m) high whilst the tank's storage capacity was 35,300 acre⋅ft (43,541,909 m3) and its water spread area was 3,150 acres (1,275 ha). There was a 500 ft (152 m) spill on the left bank and two spills on the right bank - 1,200 ft (366 m) and 700 ft (213 m). The left and right bank sluices were each 4 ft by 3 ft 6 in whilst the central sluice had a diameter of 18 in. By 2014 the tank was capable of irrigating 6,900 acres (2,792 ha).
Bunding, also called a bund wall, is a constructed retaining wall around storage "where potentially polluting substances are handled, processed or stored, for the purposes of containing any unintended escape of material from that area until such time as a remedial action can be taken."
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A sluice is a water channel controlled at its head by a gate. A mill race, leet, flume, penstock or lade is a sluice channelling water toward a water mill. The terms sluice, sluice gate, knife gate, and slide gate are used interchangeably in the water and wastewater control industry.
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