(See also How long does it take for seed to grow). Depending on the conditions, you can expect to see some grass seed mixtures germinate quite quickly. If conditions at the time of sowing are perfect, you may see germination is as little as 2-4 days.
Source: http://ipl.unm.edu/cwl/fedbook/fwpca.html Overview. The Federal Water Pollution Control Act, popularly known as the Clean Water Act, is a comprehensive statute aimed at restoring and maintaining the chemical, physical and biological integrity of the nation's waters.
They do this by enforcing the Clean Water Act. This is accomplished through establishing acceptable levels of pollutants in our water and requiring the excess amounts be removed. EPA created the Pretreatment Program in order to prevent pollution from happening. This program monitors industries and controls what is going down the drain and into the sewer. So it is a two-pronged approach: limits on what can be allowed in the water and prevention at the source.