| 21. | The algae is followed by weeds and ultimately a silting of water bodies.
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| 22. | OPIC was concerned about waste dumped into the Ajkwa River, causing silting downstream.
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| 23. | Both ports were eventually abandoned due to silting.
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| 24. | It was during the de-silting operations that the idol was found buried.
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| 25. | Check dams could be designed to create small reservoirs, without possibility of silting.
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| 26. | These specially designed devices allow optimal skimming of the water surface and reduce silting.
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| 27. | Silting was long considered an insurmountable obstacle to deep-water navigation at Tanggu.
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| 28. | Rapid silting up also occurred on the beach.
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| 29. | Because of the irregular terrain, heavy summer rains often cause erosion and river silting.
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| 30. | Both ponds underwent restoration work including de-silting, which was completed in 2013.
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