What lessons emerge if we analyze the audit reports on irrigation sector for 2018? In this blogpost, we take an overview of the audit findings of CAG reports of Irrigation Sector that entered public domain in the year 2018. Continue reading “Will CAG Reports of Irrigation Sector in 2018 help improve performance?”
Dams and reservoirs make rivers sediment-starved and menacing manifold downstream. While heavy rainfall is also a key factor behind the floods, hungry water had a more pronounced effect, says D. Padmalal, Scientist and Head, Hydrological process group, National Centre for Earth Science Studies.
– “When the sediment transport is interrupted, the potential energy of the hungry water released from dams will scour the river banks downstream, uprooting trees or riparian vegetation and damaging bridges and other engineering structures,” explains Dr. Padmalal. Overloaded with silt and clay from the eroding river banks, the highly turbid and viscous water clogs drainage channels. Subsequent discharge of water from the dam will lead to inundation and waterlogging of large areas.
– Hungry water can also develop in high gradient river channels devoid of adequate quantity of sand and gravel, especially during periods of high rainfall. “Years of uncontrolled sand mining have left most of the rivers in Kerala depleted or exhausted of sand and gravel. This creates a situation similar to the release of hungry water from dams,” notes Dr. Padmalal. When the river channel has adequate supply of sand and gravel, the potential energy of the water is used to transport the mixture. The water does not scour the banks or turn muddy.
The various aspects of tragic Dam Disaster in Mekong Basin in Laos are still unfolding. But it is clear from many accounts that it was an avoidable, man-made disaster due to neglect of contractors, decision makers, consultants and supervising agencies. There is a lot we can learn from this if we want to avoid such disasters in India. We still do not have credible Dam Safety Law or institution, CWC is clearly not the right agency considering the conflict of interest with the various other roles of CWC. But for now let us look at the reports of Laos Dam Disaster.
Reminding the world of one of the worst dam disasters, the under construction dam Xepian Xe Nam Noy Hydro power project breached releasing 5 billion cubic metres of water in Southern Laos on July 23.
The gushing water current swept the surrounding leading to death of about 26 people and displacing about 6600 residents. As per report hundreds of people are still missing from neighbouring villages of Yai Thae, Hinlad, Mai, Thasengchan, Tha Hin, and Samong, which bore the brunt of flooding. The deluge has reportedly destroyed thousands of homes.
In its latest report, the Comptroller and Auditor General (CAG) has questioned implementation of sixteen National Irrigation Projects. Before this, the CAG has held mismanagement in dams’ operation responsible for Chennai floods in 2015. Both these reports are available on its website now.
The CAG report on National Irrigation Projects, tabled in Parliament on July 20, has revealed that sixteen major multi-purpose water projects, taken up on an expeditious basis about a decade ago, are nowhere near completion, with no work being undertaken in as many as 11 projects despite the incumbent govt’s much-wanted focus on improving irrigation facilities in the country.
The report also mentioned that out of the 16 projects, undertaken under the Accelerated Irrigation Benefits Programme (AIBP) in Feb 2008, only five projects with estimated irrigation potential of 25.10 lakh hectares were under implementation and even these projects suffer from 8 to 99 per cent shortfall in physical progress, the CAG said. The remaining 11 projects with estimated irrigation potential of 10.48 lakh hectares are yet to commence and are at different stages of approval.
India certainly urgently needs credible measures to achieve both structural and operational safety of dams. As the HINDUSTAN TIMES editorial emphasizes, we need much greater transparency, accountability and participation of independent, non government experts at every level of functioning of Dam Safety mechanism. Current Dam Safety Bill draft falls far short of that. This is also underscored by many of the news we bring in this July 16, 208 issue of DRP News Bulletin.
The Tamil Nadu CAG report, as Indian Express reports, has clearly said that the Chennai floods of Dec 2015 were majorly due to the wrong decision of dam operators to release 29000 cusecs of water for 21 hours, in violation of all safety norms, but no was punished for this wrong decision. The same has always been the case.
The Bulletin also brings the warning from, no less than Chief Minister of Assam to NEEPCO that if NEEPCO, the operator of the 405 MW Ranganadi Dam releases water from the dam without warning and when downstream areas are facing floods, they will have to bear the losses people suffer. Continue reading “DRP News Bulletin,16 July 2018: Dam Safety Is Needed, Can We Depend On CWC Engineers Alone?”
The NATIONAL PLATFORM FOR SMALL SCALE FISH WORKERS (INLAND) is convening a Consultative Meeting on Livelihood Issues of Inland Small Scale Fish Workers 10thJuly 2018, Gandhi Peace Foundation, New Delhi.
The Invitation letter says: “India is gifted with vast and varied inland water bodies bearing rich fish resources.Rivers and canals, reservoirs, ponds and tanks, oxbow lakes, wetlands, backwaters and estuaries yield 7.21 million tonnes of fish which is more than 66% of total fish production of the country. The sector sustains about 4 million fish workers and a total population of around 2 crores.Fish provides good quality animal protein rich in minerals and vitamins. About 800 million Indians eat fish. After milk, fish is the largest source of our animal protein.These huge resources are under severe stress. Rivers are poisoned with heavy pollution. Diversion of water from rivers is harming their ecological flow.
W Ghats Forests vital for Tamil Nadu SW Monsoon Rains Researchers have found that the dense vegetation in the Western Ghats determines the amount of rainfall that Tamil Nadu gets during the summer monsoon. A team led by Prof. Subimal Ghosh from the Department of Civil Engineering at the Indian Institute of Technology (IIT) Bombay has found that dense forests of the Western Ghats contribute as much as 40% of moisture to the southwest monsoon rainfall over Tamil Nadu during normal monsoon years. The average contribution is 25-30%. But during monsoon deficit years, the contribution increases to as high as 50%. Continue reading “DRP News Bulletin May 7, 2018: WESTERN GHATS FORESTS ARE VITAL FOR SOUTH WEST MONSOON RAINS IN TAMIL NADU”
Swami Gyan Swarup Sanand (Prof G D Agarwal formerly) writes to Prime Minister on Feb 24 with three demands on Ganga and says if these are not satisfied by Ganga Dashera (June 22, 2018), he will go on fast unto death. The three demands are: 1. stop work on Vishnugad Pipalkoti, Singoli Bhawari and Phata Byung HEPs 2. Pass in Parliament the Draft Ganga protection act drafted by Just (retired) Girdhar Malviya headed committee and 3. Create a National Ganga follower committee whose permission will be necessary before taking any decision about Ganga. See the detailed blog by Arun Tiwari ji and link to the letter to PM. http://hindi.indiawaterportal.org/Swami-Sananda-open-letter-pm-modi-clean-ganga
This week there are exemplary and encouraging wetlands revival stories from three metro cities of Chennai, Hyderabad and Delhi. In the first example from Hyderabad, meticulously chosen plant species such as tulsi, aswagandha, citronella and hibiscus have been used to create an artificial island to clean Neknampur Lake. The treatment islands are composed of four layers of which the bamboo base keeps the entire structure afloat. Based on soil-less hydroponics, these floating treatment wetlands absorb excess nitrates, thereby reducing the chemical content of the lake water. Microorganisms present in the wetland break down organic matter while the root systems filter out pollutants and sediments. https://www.thenewsminute.com/article/3500-saplings-floating-islands-help-rejuvenate-hyd-neknampur-lake-75819 (The News Minute, 3 Feb. 2018)
Similarly, Chennai-based Care Earth Trust along with the public works department (PWD) and the civic body has managed to restore three urban lakes. While many of the smaller wetlands have vanished over time, many mid-sized wetlands seem to have shrunk by almost 65 percent. Thanks to their joint effort, invasive hyacinth was removed from the Narayanapuram Lake in Pallikaranai, while sewer lines, which emptied into the Perungalathur Lake, have now been plugged. A detailed restoration proposal has been forwarded to the PWD regarding the Korattur-Madhavaram-Ambattur lakes. https://timesofindia.indiatimes.com/city/chennai/hyacinth-out-sewer-line-plugged-three-water-bodies-restored/articleshow/62748110.cms (The Times of India, 2 Feb. 2018)
Meanwhile, Delhi Jal Board (DJB) has taken up interesting new project of creating an artificial lake in Dwarka. The project will supply water in sub-city and improve ground water level too. DJB has approved Rs. 56 crore for the project which will be completed in next seven months. This would the first model project wherein a lake will be used to augment water supply. The special lake is being created next to the Dwarka water treatment plant (WTP) will have a sand bed to allow maximum percolation of water into the ground. It will have a capacity of 10 million gallons (MGD). The project is expected to add supply of 5-6 million gallons water to Dwarka every day.
Great to see this focus on aquatic biodiversity (unfortunately the article keeps using the word marine biodiversity, not using the word aquatic or freshwater biodiversity even once) along the 120 km long Sindhudurg Coast line, one of the 11 ecologically sensitive habitats identified along India’s coasts.
The FIRST study of local Otter Population by Ela Foundation identified upto 591 Smooth coated otters (strangely article does not mention about existence of small clawed Otters in Sindhudurg), 561 Indo Pacific humpbacked dolphins, among many others. The coast is particularly river rich with some twelve creeks/ rivers including Shanti, Piyali, Naringre, Achra, Gad, Talavade, Otawane and Pithdhaval Rivers.
The biodiversity here is facing multiple threats including rapid urbanisation, tourism onslaught with attendant plastic and sewage disposal, unregulated fishing trawlers, illegal sand mining, and global warming. It also underlines the need to do assessment of any interventions done in the area, of impacts on the aquatic biodiversity. http://www.hindustantimes.com/india-news/orphans-in-the-wild-what-the-otter-s-trying-to-tell-us-about-our-oceans/story-IfRFFi63Q8nV7UkUK4c16O.html (The Hindustan Times, 14 January 2018)