You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is All of the following are essential for a well to meet the criteria of a sanitary well, EXCEPT: and explain in detail?
The criteria for a sanitary well are: Location: It should be at least 15m away from possible sources of contamination located a higher level than nearby sources of contamination and no user should have to carry water for more than 100m Lining: The inside of the well should be lined with bricks up to a depth of 6 metre and 60-90cm above the ground level. Parapet wall should be up to a height of at least 70-75cm. Platform: A cement concrete platform should be constructed around the well with a radius of at least 1m in all directions. Drain Cover Hand pump Consumer responsibility Quality: The physical chemical and biological parameters of the well water should conform to acceptable standards Ref: Environment and health Park's textbook of Preventive and Social Medicine, 21st edition, page-656.