Soil, sand and minerals washed from land into water, usually after rain. They pile up in reservoirs, rivers and harbors, destroying fish-nesting areas and holes of water animals and cloud the water in order that needed sunlight may not reach aquatic plans. Careless farming, mining and building actions will expose sediment supplies, allowing them to be washed off the land after rainfal... https://www.4shared.com/office/QfZxWuHNjq/Drainage_Overflows_And_Gutters.html