Severe pollution incidents caused by water companies rose for the third year running last year but chief executives continued to be rewarded with high pay and bonuses.

Excessive application or application to sodden land or insufficient land area can result in direct runoff to watercourses, with the potential for causing severe pollution.

A drastic increase in the use of coal led to severe pollution which caused discoloration of buildings and trees and the reduced prevalence of lichen.

Accidental runoff from sanitary sewers have led to severe pollution in a number of water ways.

The contaminated wastewater of these businesses flowed back into the pond, creating a severe pollution problem and environmental health hazard.