If you are interested in developing a turf runway on a residential airpark you might want to get a hold of FAA Advisory Circular 150/5370-10A dated 2/17/89. The AC title is Standards for Specifying Construction of Airports.
As you might imagine this is an extensive document but the area you probably want to look at closest is noted as Item P-217 – Aggregate-Turf Pavement.
This section of the advisory circular provides a lot of detail about the type of base that should be created, construction methods, spreading and mixing of materials, methods of measuring a wide variety of aspects of the project plus other helpful information.
The airports division of FAA has prepared a lot of material about airports and some of it may be useful in building, operating and maintaining a residential airpark. Remember, you already bought and paid for this sort of information through your tax dollar so you might as well take advantage of what ever is available.