Across
- 5. A shallow dug well
- 8. Water that contains more than the desired quantity of dissolved carbonates, bicarbonates and sulphates of Magnesium and Calcium
- 11. A borewell that is not very deep
- 12. Microorganisms like bacteria or viruses that are capable of causing health problems to humans, if they enter the digestive tract through contaminated food or water
Down
- 1. Ultimate source of all water
- 2. parts per million
- 3. A borewell from which water can be drawn for use
- 4. Water flowing out of our closets carrying faeces and urine
- 6. A dug well used for the purpose of receiving rainwater to improve the groundwater table
- 7. Water flowing out after washing clothes, vessels, bathing and similar cleaning tasks, which don't usually contain harmful pathogens
- 9. A body of rock and/or sediment that holds groundwater
- 10. A pit dug into the ground, until a favourable layer of rock/soil is reached for absorption of rainwater