| 11. | The houses had no mains drainage, gas or electricity until after the Second World War.
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| 12. | Sewerage remained a serious problem in the 1970s and mains drainage was not provided until 1992.
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| 13. | It is the main drainage system for the northern Loudoun Valley, including all of the Catoctin Valley.
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| 14. | Its main drainage basin is Toby Creek.
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| 15. | Neither village in the valley has street lights or mains drainage as there is little demand for such.
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| 16. | The Raystown Branch of the Juniata River is the main drainage in the northern two-thirds of the county.
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| 17. | The two main drainage canals that traverse the dike can be closed by floodgates in such an event.
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| 18. | The privy was built adjoining the scullery block, and would have a water closet connected to mains drainage.
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| 19. | Small ditches were dug leading to larger watercourses, which in turn transported their water to the main drainage canals.
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| 20. | A " checked " drainage system also reduces the discharge through the main drainage system, thereby reducing construction costs.
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