Showing posts with label coal mine. Show all posts
Showing posts with label coal mine. Show all posts

Sunday, June 1, 2008

ARSENIC IN THE WATERS OF JHARKHAND STATE OF INDIA.

ARSENIC IN THE WATERS OF JHARKHAND STATE OF INDIA.
By
Dr. Nitish Priyadarshi




Fig: 16 years old girl suffering from arsenic toxicity. This girl belongs to Sahebgunj district of Jharkhand. She is not able to walk properly due to pain in her feet. Her parents are worried about her marriage.



Fig: Man showing arsenic affected areas of his body.

Fig: Aersenic filter installed by the local administration in arsenic affected areas of Sahebgunj district of Jharkhand. (all photos by Kumar Karamvir)


  • INTRODUCTION AND DISCUSSION:
    Arsenic contamination of groundwater has led to a massive epidemic of arsenic poisoning in Bangladesh and West Bengal in India and neighbouring countries. It is estimated that approximately 57 million people are drinking groundwater with arsenic concentrations elevated above the World Health Organization's standard of 10 parts per billion. The arsenic in the groundwater is of natural origin, and is released from the sediment into the groundwater due to the anoxic conditions of the subsurface. This groundwater began to be used after western NGOs instigated a massive tube well drinking-water program in the late twentieth century. This program was designed to prevent drinking of bacterially contaminated surface waters, but failed to test for arsenic in the groundwater. Many other countries and districts in South East Asia, such as Vietnam, Cambodia, and Tibet, China, are thought to have geological environments similarly conducive to generation of high-arsenic groundwaters. Arsenicosis was reported in Nakhon Si Thammarat, Thailand in 1987, and the dissolved arsenic in the Chao Phraya River is suspected of containing high levels of naturally occurring arsenic, but has not been a public health problem due to the use of bottled water.
    An environmental health disaster is unfolding in West Bengal and Bangladesh. Tens of millions of persons in many districts are drinking ground water with arsenic concentrations far above acceptable levels. Thousands of people have already been diagnosed with poisoning symptoms, even though much of the at-risk population has not yet been assessed for arsenic-related health problems. Alarming level of arsenic in the groundwater of eight districts of West Bengal and 2 districts of Jharkhand in East India has become a serious health hazard. The number of people suffering from skin lesions, muscular disorder and even cancer, is constantly going up. This is an acute 'environmental health' problem since the rural population in these districts is solely dependent on groundwater for drinking, bathing and cooking.
    The source of the problem is geological in origin, which has aggravated due to excessive withdrawal of groundwater for paddy cultivation in the wake of the green revolution of the 1970s.
    ARSENIC IN JHARKHAND
    A detailed study has been presented on groundwater metal contents of Sahebgunj district in the state of Jharkhand, India with special reference to arsenic. Both tubewell and well waters have been studied separately with greater emphasis on tubewell waters. Groundwaters of all the nine blocks of Sahebgunj district have been surveyed for iron, manganese, calcium, magnesium, copper and zinc in addition to arsenic. Groundwaters of three blocks of Sahebgunj, namely, Sahebgunj, Rajmahal and Udhawa have been found to be alarmingly contaminated with arsenic present at or above 10 ppb.
    Rivers flowing through the coal fields of Jharkhand have been reported to carry arsenic responsible for arsenic poisoning in downstream areas of West Bengal. The coal fields of Bachara and Piprawar areas of Jharkhand have contaminated the waters of the Damodar and its tributary, the Safi, causing problems in West Bengal. According to Nitish Priyadarshi, arsenic contamination arises mainly due to the dumping of waste from the coal mines along the river bed. Coals of the area mentioned contains sufficient amount of arsenic as described below.
    Distribution of Arsenic in the water and in the Permian coals of North Karanpura Coalfield of Jharkhand State of India:
    The North Karanpura coalfield, a western most member in the east-west chain of the Damodar Valley Basin, forms a large expanse of coal bearing sediments spread over Hazaribag, Ranchi and Palamau districts of Jharkhand State. It covers a total area of around 1230sq. Km. For the arsenic study, samples from coal from Badam, Kerendari, KDH, Rohini, Dakra and Karkatta were analysed by the author. Molybdenum-blue Colorimetry was used as the chemical technique for arsenic determination as recommended by the International Standard Organisation. Concentration of arsenic in coal samples range from 0.01 to 0.49ppm with an arithmetic mean of 0.15ppm. (Priyadarshi, 2004). Concentration of arsenic is low compared to most world coals. Average ash% is very high (up to 32.51%).
    To understand the environmental impact of arsenic in coals of research area, water and sediments were analysed for arsenic concentration. Concentration were moderately high (2 ppm) in the sediments of local streams flowing through the coal mining area. Average concentration of arsenic in the sediments of mine water was 1.4 ppm. Though the concentration of arsenic is low in the surface water ( 0.001-0.002 ppm) it may still affect the local habitants especially during summer season when the consumption of water increases many folds. People of this area is consuming water from several years. Effects of arsenic will be there if the people of the area consume water containing arsenic for longer periods.

    Real truth is that people of the area are ignorant about this toxicity. Few people know about this but due to lack of pure source of water they are helpless and are forced to depend on the contaminated water.
    Local communities of the Sahebgunj district in the state of Jharkhand, are already showing sign of arsenic toxicity. Sufferers are complaining about body ache, skin problems, nausea etc.


    General Source of arsenic
    Arsenic is widely distributed throughout the earth's crust.
    Arsenic is introduced into water through the dissolution of minerals and ores, and concentrations in groundwater in some areas are elevated as a result of erosion from local rocks.
    Industrial effluents also contribute arsenic to water in some areas.
    Arsenic is also used commercially e.g. in alloying agents and wood preservatives.
    Combustion of fossil fuels is a source of arsenic in the environment through disperse atmospheric deposition.
    Inorganic arsenic can occur in the environment in several forms but in natural waters, and thus in drinking-water, it is mostly found as trivalent arsenite (As(III)) or pentavalent arsenate (As (V)). Organic arsenic species, abundant in seafood, are very much less harmful to health, and are readily eliminated by the body.
    Drinking-water poses the greatest threat to public health from arsenic. Exposure at work and mining and industrial emissions may also be significant locally.
    Effects:
    Chronic arsenic poisoning, as occurs after long-term exposure through drinking- water is very different to acute poisoning. Immediate symptoms on an acute poisoning typically include vomiting, oesophageal and abdominal pain, and bloody "rice water" diarrhoea. Chelation therapy may be effective in acute poisoning but should not be used against long-term poisoning.
    The symptoms and signs that arsenic causes, appear to differ between individuals, population groups and geographic areas. Thus, there is no universal definition of the disease caused by arsenic. This complicates the assessment of the burden on health of arsenic. Similarly, there is no method to identify those cases of internal cancer that were caused by arsenic from cancers induced by other factors.
    Long-term exposure to arsenic via drinking-water causes cancer of the skin, lungs, urinary bladder, and kidney, as well as other skin changes such as pigmentation changes and thickening (hyperkeratosis).
    Increased risks of lung and bladder cancer and of arsenic-associated skin lesions have been observed at drinking-water arsenic concentrations of less than 0.05 mg/L.
    Absorption of arsenic through the skin is minimal and thus hand-washing, bathing, laundry, etc. with water containing arsenic do not pose human health risk.
    Following long-term exposure, the first changes are usually observed in the skin: pigmentation changes, and then hyperkeratosis. Cancer is a late phenomenon, and usually takes more than 10 years to develop.
    The relationship between arsenic exposure and other health effects is not clear-cut. For example, some studies have reported hypertensive and cardiovascular disease, diabetes and reproductive effects.
    Exposure to arsenic via drinking-water has been shown to cause a severe disease of blood vessels leading to gangrene in China (Province of Taiwan), known as 'black foot disease'. This disease has not been observed in other parts of the world, and it is possible that malnutrition contributes to its development. However, studies in several countries have demonstrated that arsenic causes other, less severe forms of peripheral vascular disease.
    According to some estimates, arsenic in drinking-water will cause 200,000 -- 270,000 deaths from cancer in Bangladesh alone.
    Reference:
    Priyadarshi, N.: Arsenic in Damodar poisoning West Bengal. Indian Express, July 12, 1998.
    Priyadarshi, N. 2004. Distribution of arsenic in Permian Coals of North Karanpura coalfield, Jharkhand. Jour. Geol. Soc. India, 63, 533-536.

    http://www.who.int/mediacentre/factsheets/fs210/en/

    http://www.geog.cam.ac.uk/research/projects/arsenic/symposium/session4.html

    http://www.cababstractsplus.org/google/abstract.asp?AcNo=20053111461

    http://nutritionfoundationofindia.res.in/archives.asp?archiveid=72&back=bydate.asp.


    Dr. Nitish Priyadarshi
    Geologist and Lecturer
    Department of Environment and Water Management,
    J.N. College
    Ranchi University,
    Ranchi-834001
    India.
    Email: rch_nitishp@sancharnet.in

Wednesday, May 28, 2008

IMPACT OF MINING IN JHARKHAND STATE, INDIA

IMPACT OF MINING AND INDUSTRIES IN JHARKHAND STATE, INDIA

By

Dr. Nitish Priyadarshi


Introduction:
Jharkhand meaning “forest tract” is the ancient name given as a whole, to the forested upland geographically known as the Chotanagpur plateau forming the north-eastern portion of the Peninsular Plateau of India. It is a region of great unevenness consisting of a succession of plateaus, hills and valleys drained by several large rivers such as the Damodar, Subernarekha, Barakar, Brahmani and Baitarani.
The plateau represent a vast area from the western most part of Bihar to the border of West Bengal in the east, and continues somewhat further into West Bengal. On the basis of physiographic consideration, this plateau can be further sub-divided into the Ranchi and Hazaribag plateau.
Jharkhand is one of the richest areas in the whole country, rich in minerals deposit and forests. The region has huge reserve of coal, iron ore, mica, bauxite and limestones and considerable reserves of copper, chromite, asbestos, kyanite, china clay, manganese, dolomite, uranium etc.
The value of minerals extracted in Jharkhand in 2004-2005 was Rs 5,760 crore- approximately eight per cent of the total value of mineral production of the country. The state is a larger producer of fuel minerals and accounts for 10 per cent of their total value in the country. Coal contributes the most -92-93 per cent- to the total revenues from mining received by the Jharkhand government, iron ore accounts for another two to three per cent. Jharkhand receives the maximum mining royalty among the coal-producing states of India.
Since its formation, the Jharkhand government has been laying the red carpet for industrial investment by offering sops.
The Jharkhand government has granted 524 leases for mining various major minerals-206 of which have been granted for coal alone. In addition, 2,717 leases covering an area of 8,426 ha have been granted for extracting minor minerals in the state.
A significant portion of Jharkhand’s population, 44 per cent, is below the poverty line and more than six per cent is still unable to get sufficient food. The poverty ratio in the state is much higher than that of the country.
In the name of national interest the Jharkhand area is witnessing a gigantic industrialization and development process for the exploitation of its natural and human resources. The working of Jharia, Bokaro and Karanpura coalfields started in the 1856. The opening of coal mining in Dhanbad area during the second half of the 19th century and the establishment of the Tata Iron and Steel company in Jamshedpur in Singhbhum district in 1907 marked the beginning of the large scale exploitation of mineral and other industrial resources in this area.

Results and discussion:

The Jharkhand region an account of its richness in some key ores and minerals and its abundance in cheap labour, thanks to its backwardness, otherwise, has been the site of a good many industrial establishment since pre-Independence days and that industrialization has brought with it concomitant ill effects the worst of which is the devastation of its environment. In the name of the development large forests have disappeared, tracts of inhabited land have gone under water. Water in the region around industrial areas have been polluted to an extent far exceeding the prescribed safety level.
In fact polluted water carried down the streams and rivers spreads mischief in distant areas also. Industrial pollution is already playing havoc with the life and health of the people of the region.

The natural wealth of this area contrasts vividly with the desperate poverty of the people who inhabit it. This region has been far the ages and the homeland of aboriginal races such as the Mundas, Asurs, Santhals, Oraons, Ho, Kharias etc. These indigenous groups have been the worst hit by the large scale exploitation of the natural resources of the region through the development of mines, industries and commercial exploitation of forests. The majority of them live in a state of semi-starvation through out the year. For centuries the indigenous people of Jharkhand lived in harmonious relationship with their environment. They have developed a culture which is closely related to nature. Since their lives are closely related to nature, any adverse impact on the environment in which they live will adversely affect their lives also, and vice-versa.
Mine areas often have a monochromatic appearance. Coal mining areas are depressingly black, iron ore town are red, ochre lends a yellow colour and limestone makes everything chalky white. Fine particles of the ore spread as a uniform layer of dust on every available surface in these areas.
The pervasiveness of dust is the strongest indication that mining is not a benign activity. Unless it is carefully planned and thoughtfully carried out, it can barren the land, pollute water, denude forests, defile the air and degrade the quality of life for people who live and work in the vicinity. Modern technology has enormously magnified our ability to extract minerals. In the process, it has also gravely threatened human lives and the environment.

In Jharkhand mining activity ranges from the small, completely manual stone quarries to mechanical mines. With increasing mechanization, mining equipment has grown larger and more powerful. Entire landscapes are altered in a relatively short period of time.



Fig: Coal mines destroying top soil and Forest cover
Mining ruins the land, water, forests and air. The loss or pollution of natural resources degrades the quality of human life in these areas. Increasingly, mineral-based production units like coal-fired power plants, steel plants and cement factories are located near the mines. A cluster of thermal power stations are planned near the major rivers of Jharkhand.

A precise estimate of the amount of agricultural land lost to mining is not readily available. Every mining enterprise, however, means the conversion of land to such purposes as roads, railways and ropeways for mineral transport, townships for housing miners and manager, infrastructure for administrative purposes, land for stockyard and preliminary processing operations. In effect, the total land affected by mining is many times larger than the simple lease area.

The large scale mining and allied activities going on in the Jharkhand region have caused severe damage to the land resources of the area. Vast areas of rich forests and agricultural land belonging to the indigenous people have been laid waste because of haphazard mining. Eliminating of existing vegetation and alteration of soil profile due to open cast mining operations, including shifting of overburden and reject dumps, have caused severe soil erosion and silting of adjoining courses and degraded the productive capacity of the lands in the area. Excessive underground mining, especially of coal, is causing subsidence of land in many areas as a result of which such lands have been rendered unsafe for habitation, agriculture and grazing. In 1980’s the coal mining industry became identified as a major cause of damage to the environment, with more than 80 sq. kms. of land being destroyed every year. Damage to land can also result from underground and stockyard fires in coal mining areas. Coal is normally accompanied by methane gas which is released when the coal is fractured and crushed during production. This gas can ignite spontaneously and it is extremely difficult to stop an underground coal seam from burning once it ignites. The normal practice is to seal off the tunnels where the fire has started so that it is starved of oxygen. This process may take years. In the Jharia coalfields, an underground fire has raged for more than 70 years, covering more than 2000 hectares, and has reportedly consumed 40 million tones of coking coal.

Impact on forest:
The Website of the Jharkhand government says that forests in Jharkhand cover about 29 per cent of the state’s total geographical area. Feeding minerals to meet the nation’s insatiable appetite has taken its tall on the state- rampant mining for decades has turned large tracts of forests into wastelands. During the 80’s, coal companies acquired thousands of hectares of forests in Jharkhand for mining operation in Damodar valley. In Singhbhum district a similar devastation of forest lands happened for extracting iron ore. According to the Forest Survey of India’s State of Forest Report, during an assessment published in 1997, Jharkhand had 2.6 million ha of forest. In 1999, it had 2.2 million ha, a loss of 0.4 million ha of forest cover. The forest cover in the Damodar valley coalfield, once 65 per cent, stands at only 0.05 per cent today.
Saranda, once so dense that even the sun’s rays couldn’t penetrate it, has Asia’s largest sal (Shorea robusta) forests and is an important elephant habitat. Today, uncontrolled mining for iron ore, both legal and illegal, is destroying not just the forest, but also the wildlife, apart from the livelihoods of the local tribal communities. The impact on the forests has been significant. According to the state of forest reports, between 1997 and 1999, about 3,200 ha of forest was lost in the Singhbhum region. Between 2001 and 2003 some 7,900 ha of dense forests were lost in the East and West Singhbhum districts. Saranda too has been affected, and further degradation will have serious consequences for its considerable biodiversity.
Impact on water:

It is now established that much of the groundwater pollution is caused by human activities, especially mining. Mining wastes pollute streams and rivers. Ore fines and toxic substances carried by rain water into nearby water courses, alters their chemistry and often makes the water unfit for human use. By locating mineral treatment facilities near the mines, water pollution problems get worse. These units use enormous quantities of water for washing the ores. The untreated effluents, slimes or tailings are often released into neighbouring streams or lakes. In many cases, the latter are the sources of water supply to the population.
The large scale mining operations going on in the region have adversely affected groundwater table in many areas with the result that yield of water from the wells of adjoining villages has drastically reduced. Further, effluents discharged from mine sites have seriously polluted the streams and under groundwater of the area. Acid mine drainage, liquid effluents from coal handling plants, colliery workshops and mine sites and suspended solids from coal washeries have caused serious water pollution in the region, adversely affecting fish and aquatic life.
Damodar and Subernrekha river valley are the cradle of industrialization in Chotanagpur plateau region. Damodar is the most polluted amongst Indian rivers and ironically almost all polluting industries are government owned. About 130 million litre of industrial effluents and 65 million litre of untreated domestic water finds way to Damodar drainage system every day. A study of the area showed that one coal washery alone was discharging about 45 tonnes of fine coal into the Damodar every day and there are as many as eleven coal washeries in the region with an installed capacity of 20.52 million tones annually.
Today the picture of Damodar or Damuda, considered a sacred river by the local tribals, is quite like a sewage canal shrunken and filled with filth and rubbish, emanating obnoxious odors. Other major rivers of the region are also seriously polluted. The Karo river in the West Singhbhum is polluted with red oxide from the iron ore mines of Noamundi, Gua and Chiria. The Subernrekha shows a different type of pollution which is even more hazardous in nature. Metallic and dissolved toxic wastes from TISCO, Jamshedpur and HCL Ghatsila and radioactive wastes from the uranium mill and tailings ponds of the uranium corporation of India limited at Jaduguda flow into Subernrekha and its tributaries.
The release of different toxic metals like arsenic, mercury, chromium, nickel etc. from the coals and mine spoil heaps in Damodar and its tributaries have caused severe damage to water quality. Continuous dewatering by underground mines also affects water resources. These mines annually pump out millions of litres to drain mine galleries and release it into nearby water courses. This has caused flooding, silting, water logging and pollution in the mining areas of Jharkhand. They have also reduced the surrounding water table, and also reduced the available groundwater.

Impact on air:

Mineral dust is a pervasive feature of all mining areas. It is generated by wind sweeping dust from water heaps, blasting and the use of heavy machinery. Blasting also produces noxious fumes that are released into the atmosphere. Air pollution in the mining areas in Jharkhand state has caused respiratory diseases and eye ailments.
According to the report published in the citizen’s report by Centre for Science and Environment, New Delhi in 1984-85, the Roro asbestos is dumped into the open which has endangered not only the lives of the mine workers but also of those living in the surrounding areas. Dust generated by mining and mineral based industries has also reduced agricultural productivity in Jharkhand State.
The metal content in fly ash goes on increasing with decrease in particle size. This observations have been found to have conformable behaviours in the fly ash study of Damodar coals. In exclusive coal mining areas also high incidence of pneumoconiosis, up to 11%, has been reported in the Jharia coal field region.

A case study of Roro asbestos mining area:
To assess the impact of this abandoned chromite and asbestos waste, a fact-finding team (FFT) was constituted by the mines, minerals & People (mm &P) and Jharkhandis' Organisation for Human Rights J.O.H.A.R. in December 2002
Roro hills is located about 20 kilometers west of Chaibasa, the district headquarters of West Singhbum, Jharkhand.
The region has had an active history of mining operations for about seven decades starting with the mining of magnetite. Roro hills were mined for chromite and asbestos by major industrial houses like Tatas and Birlas. This hill range is contiguous to Jojohatu hill which is also mineralized with chromite. TISCO, which used to mine chromite from Roro, stopped operations before 1958 as they struck better deposits elsewhere. Asbestos mining was started by Hyderabad Asbestos Cement Products Ltd. after the area was abandoned by Tatas and Kesri, who were mining magnetite and chromite.
The highest elevation of the Roro hill is approximately 600 meters above the level of the plains where the settlements of Roro and Tilasud village are located. The entire hill range is well wooded.
Interview with ex-workers from the Roro mines from Roro and Tilaisud villages revealed that most of them had suffered or are suffering from low back pains, blindness or severely reduced vision, and respiratory illnesses. Several of those interviewed complained of coughing blood in sputum. FFT examined three chest radiographs (taken between 1998 and 2000) of workers who complained of chest pain and respiratory distress. The chest radiographs revealed several radio-opaque opacities in the middle and lower lobes of both lungs. These suggest some form of interstitial lung disease (pneumoconioses, pulmonary tuberculosis as comorbid conditions). Physical examinations were not carried out. Most patients described their conditions as tuberculosis but given their occupational histories, pneumoconiosis as either the principal diagnosis or a co morbid condition cannot be ruled out and merits further investigation. Several workers with history of working in the asbestos mines complained of low back pain. One worker, who had worked at the pumping station for over 10 years was suffering from epigastric hernia These findings suggest presence of ergonomic musculoskeletal disorders.

Several workers complained of significantly diminished visions. Some had cataracts, and evidence of eye injuries. A few workers complained of deafness subsequent to their exposure to loud sounds in the mines – reportedly secondary to exposure to loud noise with no protection of ears during blasting operations.
Future very bleak:
The dominant mining companies of the world are now showing great interest in India, especially in the Jharkhand region. The entire Jharkhand area, rich in minerals, will now throw open for plunder and loot by these vested interests. With the expansion of the mining activities, land degradation, air, water and noise pollution will attain alarming proportions. This will have serious economic impact upon the villages and their agrarian population. The existing agricultural and forests land will shrink further with the eventual emergence of more wastelands. More and more indigenous people will be forced to move out of their hearths and homes to brick kilns, stone quarries, etc. in search of livelihood. Their wealth will be forcibly taken away from them leaving behind heartbreak, destruction and degradation.
The author will like to exhort different political leaders and the prominent individuals of Jharkhand to set up an environmental army and demand that industrial planning in the area must be weighed against the prospective loss of environment and the existing industrial establishment must conform to WHO standards for treatment effluxes and to ILO standards of workplace environments.

Reference:

1. Areeparampil, M.SJ. (!995). Displacement due to mining in Jharkhand, in Mining Environment, B.D. Bhagat and D.N. Thakur (Eds.), Oxford & IBH Publishing Co. Pvt. Ltd., New Delhi.
2. Singh, J. (1985), Upper Damodar Valley: A study in Settlement Geography, Inter-India Publication, New Delhi.
3. Citizens report- Rich lands and poor people (2008), Centre for Science and Environment, New Delhi.
4. http://www.birsa.org/rororeport1.htm
5. http://www.blacksmithinstitute.org/images/india/pid94-3.jpg


Dr. Nitish Priyadarshi
Geologist and lecturer Department of Env. And Water Management, J. N. College,
Ranchi University, Ranchi, India.
Email: rch_nitishp@sancharnet.in

Tuesday, April 8, 2008

MINE WATER CAN BE TRAPPED TO QUENCH THIRST- SPECIAL REFERENCE TO JHARKHAND STATE OF INDIA.

MINE WATER CAN BE TRAPPED TO QUENCH THIRST- SPECIAL REFERENCE TO JHARKHAND STATE OF INDIA.
"Catch Water Where it Falls"
By
Dr. Nitish Priyadarshi





Fig.1 Sufficient amount of water present in coal mines of NK Area of Jharkhand.

Fig.2 Other mine flooded with water

Fig.3 Satellite photo showing mine water in North Karanpura Coalfield of Jharkhand State.

Fig.4 Water in stone mine near Ranchi city.

Nature has been issuing warning signals like steep decline in water table, stoppage of base flow in streams and drying up of a large number of open wells and drilled bore wells.
In Jharkhand water underground few years ago had remained a precious resource to be tapped in times of need when all other sources of water had failed. This is no longer the case. The reckless way in which the people of Jharkhand are drilling more and more number of wells, drill deeper and deeper into the ground and withdraw water without exercising any restraint for domestic and commercial buildings and flats, shows gross abuse. Great damage has already been caused and any further abuse of this resource will result in water crisis.
Formerly the drinking water requirement of Jharkhand State was met by the construction of tanks, ponds and wells by the people themselves who also take care to keep these structures in good repair.
Tanks, ponds have been allowed to fill with silt and remain almost dry during the summer season and with no source of recharge, well become dry just after the winter season. You can easily imagine the situation in the peak summer season. Drying trend starts from February itself. Land in many parts are become bare due to depletion of ground water.
In the type of meteorological conditions prevailing in Jharkhand where rainfall is restricted to about three to four months in a year. Major dams are not capable of storing more than 10 to 20 % of the rain water that falls in their catchment area because of the filling up of silt and clay from last several years which has gradually shallowed the dams. The annual rainfall of Jharkhand is 1200 mm.
Taking note of the pattern of rainfall and geology of the state, water conservation through numerous large and small ponds is a much better alternative for storing rain water.
Idea is that catch rain water where it falls, store it and make use of it for your needs.
The State of Jharkhand, although claims to be a store house of minerals of India, is not so reach in water resources. Most of the area is occupied by the hard rock, which is in general protracted drought prone areas.
During my research in the coal fields regarding trace elements in coals, I saw many abandoned open coal mines filled with mine/rain water. All the mine waters are discharged into the near by Damodar river and its tributaries or left useless. All the communities especially tribal people are dependent on the most contaminated Damodar river water for drinking and other uses during peak summer season. Even the Damodar river get dry up during the summer season. Ground water levels are fairly deep, therefore scant availability. According to the reports millions of gallons of water have apparently flooded abandoned underground as well as open coal mines in the area while the coal filed is generally short of water.
Same situation I have seen around Ranchi city where there are sufficient numbers of abandoned stone mining filled with rain water and the local people use it for washing clothes and bathing. If proper management can be implemented like water quality monitoring and installing small filter plant around such mines at least local communities can be supplied with safe drinking water.
Regarding coal mines water, water can be used for both drinking and for irrigation. Especially during summer season, where every summer is a nightmare. Heat, coal dust and shortage of water create an unbearable cocktail in summer, when people in the coal field have to often walk several kilometers for a bucket of water, stand in long queues and occasionally fight with others for a just share of the water.
Only problem is the presence of suspended solids and heavy metals in the water. Water of the mines are not acidic as found in my research work. Heavy metals which were found in mine water in the north Karanpura coal field are arsenic, iron, zinc, manganese and fluoride. Among these arsenic was present in very trace amount. Problem is with manganese and fluoride which are in bit higher range.
It can also be used as the potential to serve as cooling water sources for electric power plants. Mine pool water will have to be treated to some degree, prior to use in a power plant’s cooling.
To me these metals can be minimized by primary and secondary treatment. When compared to Damodar river, these mine waters are more safe to consume after treatment.

Treatment technologies for pH adjustment, removal of TDS, dissolved metal ions, and variables found in mine water are well established.
An example of a treatment system that might be used for the treatment of mine water includes the following process units.
• Clarification to remove settleable solids
• Horizontal precipitator, coagulation, and flocculation for metals removal
• Multimedia filtration, ion exchange, and carbon adsorption if necessary to remove low
TDS

In a 1998 report, the Central Pollution Control Board of India classified the river as ‘D’, or heavily polluted. It means the water can only support some hardy variety of fishes, it cannot be used drinking or bathing. Damodar and its tributaries resemble large drain carrying black, highly turbid water. The total suspended solid (TSS) count at most places along the upper and middle stretches of the river is 40-50 times higher than the permissible limit.
In areas like Dhanbad, Giridih, Bokaro, Hazaribagh and Chatra, there is a tremendous requirement of water on the ground but perennial sources like river are very few and groundwater levels are fairly deep, therefore, scant availability. But water in the abandoned mines are within easy reach and can be turned to our advantage.
Regarding granite stone mines, there are many abandoned mines in Ranchi, Pankur, Palamau, Singhbhum districts etc. Rain water can harvested in such open mines. As compared to coal mine water, stone mine water are less polluted. It can fulfill the demand of local community. Joints and fractures present in granite mines can also help in recharging groundwater of the area.

There is no other way. ‘Catch Water Where it Falls’ should be the slogan. There is no need to go in search of water. It is there when you want it. Develop the ingenuity and skill to catch it, store it and make use of it wisely without wasting a single drop.
Dr. Nitish Priyadarshi
Geologist