Minimum depth for the lining of a sanitary well is
Correct Answer: 6 meters
Description: The lining of a sanitary well should go down at least 6 meters (20 feet) to ensure that water enters from the bottom and not from the sides of the well.The lining should extend upwards for about 60-90cm (2-3 feet) above the ground.Park 23rd edition pg: 709
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