11.  The principal cause of the problem, however, was fertilizer run-XXXX off, which contaminated groundwater and led to eutrophication of surface water.

12.  The Commission claims that the government has breached an EC directive on dangerous substances in groundwater and surface water.

13.  Er avoid the flood plain and be acceptable in the context of surface water drainage.

14.  The drains were at last able to carry the surface water and only a few isolated areas remained flooded.

15.  Because you see that surface water, it was only surface water, because when that boat was drifting there was an awful lot of movement.

16.  There was a lot of movement under those first few inches of surface water.

17.  An unusually persistent air flow from the south has been pushing the surface waters of Lake Ontario toward the northern shores.

18.  And that mass of warm surface water, radiating on infrared weather maps like the coals of a fake fire, is now about the size of Canada.

19.  As divers and submariners know, the chaos that often characterizes surface waters quickly gives way to eerie peacefulness just a short distance beneath the waves.

20.  As a result, surface waters are salty and dense, causing them to sink.