| 11. | The village has a primary school, drinking water network, but no sewerage system.
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| 12. | In 1861 Brassey built part of the London sewerage system for Joseph Bazalgette.
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| 13. | Since 1993, the entire sewerage system has been privatised to Indah Water Konsortium.
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| 14. | Things did not improve until the introduction of modern sewerage systems.
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| 15. | The village should have a sewerage system in about a year.
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| 16. | Only half of Japan's homes are connected to sewerage systems.
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| 17. | In 1958, the company moved into rural engineering, irrigation, water supplies and sewerage systems.
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| 18. | Goryani were last encountered in the Sofia sewerage system in the early / mid-Sixties.
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| 19. | Many towns still have no potable water and their sewerage systems have been destroyed.
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| 20. | Implementation of the sewerage system was first started in 2011.
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