In the OPS regulations, a runway is referred to as contaminated when more than 25 % of the required runway surface is covered with the one of the following elements:

1. a water film sufficiently thick to give a shiny appearance to the runway.

2. a water film or loose or slushy snow equivalent to more than 3 mm of water.

3. compacted snow (a solid mass which may not be compacted further).

4. ice, including wet ice.

5. moist grass.

The combination regrouping all the correct statements is: