No stripping or removal of topsoil shall be made within 10 feet of any property line, and upon completion of the work, the premises, if below grade, shall be graded to the level of the abutting highway or the original grade if the same were below the level of the highway. Dust-down or its equal shall be spread to prevent dust from flying, and there shall be left upon the surface of the land from which topsoil is removed not less than six inches of topsoil. No topsoil shall be removed between the first day of October and the first day of April in the following year. All areas from which topsoil is removed shall during the period between August 20 and October 1, inclusive, be prepared into a loose, level seedbed, limed, fertilized and seeded in the following steps:
A. 
Apply ground limestone at the rate of one ton per acre.
B. 
Apply 5-10-5 fertilizer at the rate of 600 pounds per acre.
C. 
Disk area to work limestone and fertilizer into the soil to a depth of at least three inches.
D. 
Smooth area with a smoothing harrow.
E. 
Sow the following seed mixture at the rate of 100 pounds per acre:
Timothy
30 pounds
Kentucky bluegrass
25 pounds
Redtop
10 pounds
Perennial rye grass
30 pounds
Alsike clover
4 pounds
Wild white clover
1 pound
100
F. 
Brush in seed lightly.
G. 
Roll firm with ground roller.