Self-supporting community based mitigation program to provide arsenic safe water
In order to reduce exposure to arsenic in the villages as a short-term method Project Well has developed a self-supporting community based mitigation program to provide arsenic safe water in the affected villages of the districts of N 24 Parganas of West
LocationWest Bengal, , India
Primary Focus: Drinking Water - Community
Secondary Focus: Hygiene Education
People Getting Safe Drinking Water: 400
Total Familes 100
Total Pop 423
Children <18 137
not student 15
under 5 37
School Children Getting Water: 85
People Getting Sanitation: 0
People Getting Other Benefits:
Start Date: 2005-05-15
Completion Date: 2006-04-15
Modified conventional dugwells are constructed at carefully selected sites. The diameter of each dugwell is one meter and the depth is generally less than 30 feet. The design and practice of the Project Well dugwells differ from the traditional ones mainly in the following ways: 1. A layer of coarse sand six inches wide envelops the outer wall of the concrete cylinder; 2. The mouth of the concrete cylinder is covered with a nylon mosquito net and a tin sheet that is padlocked to avoid dropping of any debris and tampering; 3. Water is extracted using hand pumps to reduce potential bacterial contamination; 4. Flexible pipes that float with the fluctuating water table are installed. Flexible pipes reduce the inflow of sand from the bottom and also stir the water during pumping, thus facilitating the dispersal of bacterial colonies. 5. The dugwells are disinfected once a month with sodium hypochlorite solution containing 5% chlorine, following USEPA guidelines. The water in these shallow dugwells is rainwater or surface water from the surrounding water bodies that contain arsenic within the permissible limit.
One phase: Phase 5 when ten new dugwells will be constructed, water analyzed for arsenic and bacteria, water chlorinated once a month and training for one year will be provided by the field workers to the user communities on the maintenance of the well
Six months before the construction of the dugwells, the groundwork is launched by the grassroots field workers, starting with a meeting with members of the local government bodies such as the gram panchayat, followed by several meetings with the villagers, held at prospective dugwell sites. The members of Project Well and the local NGO are also present at the meetings held at the local gram panchayat, or GP. The meeting is held primarily to notify the government about the program before the field workers enter the village and hold meetings with the villagers at the â€˜paraâ€™ (a cluster of houses) level. Door-to-door campaigning is carried out, during which field workers cover the methods of the program and distribute information sheets on the effects of arsenic poisoning. After a few meetings with the prospective beneficiaries, the communities donate sites. (The dugwell is not constructed on any government property). The sense of ownership develops from the very start by this donation of a plot of land for the dugwell that is shared by the neighbors. After approval of the selected sites by the experts, based on the local geology and existence of arsenic contaminated tubewells, the community-based groups are formed.The family that donates the land becomes the chief caretaker. To maintain the well, training is given to an educated person of the community who is capable of measuring the volume of water in the well, from which the dose of disinfectant is determined. A user-friendly chart is given as a guide for the dose of disinfectant to be applied. In the areas where it is hard to find literate persons, a field worker chlorinates the water. Every month Rs. 10/- (25 U.S. cents) is collected from the beneficiary families for the maintenance of the well. The maintenance includes purchase of the disinfectant, repairing any wear and tear of the well, and measurement of arsenic once a year. The sense of ownership and investment develops amongst the users as they pay to obtain arsenic safe water.
Educational institutions, government offices (GP's), clubs and women's organizations are also included in the public health education. 90% of the funds are disbursed in the villages. Local raw materials, skilled dugwell diggers and laborers construct the dugwells. Field workers, male and female, with a minimum of a secondary-level education are selected from the arsenic prone villages. There is no discrimination based on religion, political background or economic status. The field workers are given training on the following: 1.arsenic in drinking water and its health effects; 2. bacteria present in food and water and its health effects; 3. the need for chlorination of water; 4. good personal hygiene practices; 5. public relations and how to communicate with the villagers; 6. monthly visits to the villagers and updating the registers on any complaints or comments from the beneficiaries; 7. organizing and holding awareness meetings. The field workers constantly interact with the villagers, whose comments are noted down and discussed at community meetings, to solve any issues as early as possible.
Research and Development is ongoing on the dugwells in which water contains organic odor and high fecal coliform, occurring mainly when the dugwell is fairly new. The water is treated with lime and, in cases of high fecal coliform levels, is also treated regularly with theoline, the disinfectant that contains 5% chlorine. Villagers are advised not to use the water for a few days during the period of shock treatment. Water analysis to measure the concentration of arsenic levels and total and fecal bacteria of all functional dugwells will be routinely done after construction. Also, every summer when the water levels drop, arsenic levels are measured. Project Well keeps a database evaluating the use of the dugwells (see attached newsletter). Consumers are visited monthly by the grassroots level field workers and asked about outbreaks of diarrhea and dysentery among users of each dugwell. In the winters of 2004 and 2005, door-to-door village surveys were carried out to create the database of the existing dugwells and observation of any outbreaks. There have been no such outbreaks linked to any particular dugwell water use over a period of four years.
Community contributes the land to construct the dugwell and Rs.10/- (25 cents) per month per familyfor maintenance of the dugwell that includes application of theoline once a month, dredging and cleaning once a year and repair of any other wear and tear.
Maintenance Cost: $34
Prior art before metrics
Construction of 10 dugwells = 3000
Water analysis and transport during construction=1000; Research program, transport and service charges of the staff = 7000
Co Funding Amount: $7,000