Question

22201 - 12 - introduction to earthmoving
an npdes stormwater permit must be obtained if
soil erosion is likely to occur
more than one acre of land will be disturbed
work is scheduled to be done on rainy days
stormwater drains have not been installed

Explanation:

The National Pollutant Discharge Elimination System (NPDES) storm - water permit is required when more than one acre of land will be disturbed as construction activities on such a large area can lead to storm - water runoff carrying pollutants. Soil erosion likelihood, rainy - day work, or absence of stormwater drains are not the main triggers for this permit requirement.

Answer:

more than one acre of land will be disturbed