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How can zinc runoff from roofs be minimised?
The use of modern roofing materials like ZINCALUME® coated steel and COLORSTEEL® prepainted steel greatly reduces the amount of zinc or zinc compounds in runoff water. The runoff of zinc from older galvanised steel roofs can be very effectively controlled by periodic painting.
How can zinc runoff be prevented from entering waterways?
Stormwater retention and treatment facilities can prevent contaminated stormwater from entering waterways. In rural situations or township developments stormwater retention and treatment facilities can be a simple and effective preventative measure.