大黑汀水库大坝主廊道于1988年发现在排水孔及排水沟内有大量的沉积物，分别为乳白色絮状物、黑色及红褐色物质。
Much deposition was found in the ditch of the main gallery of Daheiting Dam in1988 , including milky white , black and red brown precipitate .
大黑汀水库