The most important aspect of what kind of log or recovery report to make is determining whether you have found the correct mark.

If the mark you found is a disk:

First look at the ["datasheet"] and read the [:designation:Designation] field. For example, the designation shown on the datasheet is: CREEK.

If the mark you found is a water tower:

Read the datasheet carefully to note the description of the water tower, and the first date the water tower was reported or established as a survey mark. For example, the datasheet says the water tower has 4 legs, has a cone shaped top, and was monumented in 1931.