Relying on soil surveys at 5 acres is typically not advised. Soil samples will always yield best results. Your State Ag School usually will process them gratis or for little cost (they may ask to add the sample to a database). The more samples the better!
One of the best:
https://www.agronomy.k-state.edu/outreach-and-services/soil-...
Homeowners, if you care about your grass looking great, not a bad idea to get a sample.