| 21. | There was no city water works, so all depended on shallow wells, which were strongly alkaline.
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| 22. | There were many shallow wells and 23 windmills.
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| 23. | Microbial metabolism undoubtedly worsens environmental arsenic problems by releasing arsenite into drinking water, including shallow wells.
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| 24. | Good for shallow wells with moderate pressure differences.
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| 25. | For businesses or homes with plenty of land, one option is to dig many relatively shallow wells.
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| 26. | Based on the study, Quezon is classified into two categories namely : deep and shallow well areas.
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| 27. | The third type of plate had more shallow wells that often mimicked the look of a shell.
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| 28. | The shallow wells will receive the water from Heelerheide that has meanwhile been used for heating buildings.
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| 29. | Its decay produced gas that could be tapped in shallow wells and used for some domestic purposes.
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| 30. | Reservoirs and shallow wells, the report said, could have been tainted by surface water during the rainy season.
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