Sump pump is running too often?

Topic: 
Basements and Crawl Spaces
Question: 

We moved into our home(10 yrs old) last fall. We have 5 acres in the suburbs of minneapolis. We have a finished basement and a sump pump system. As far as I know our basement has always been dry (no strange smells/stains/ etc). Our front yard slopes toward the house with an external tile at the base of the hill that drains to the back of the property.

During the spring thaw our sump pump ran 15-20 times a day for 20 seconds at a time. Now mid-June it still comes on 3-4 times a day. There is a one drop/5 seconds constant drip into the sump pit. The back of our property is considered a wetland-however it is grass without standing water and is 10 down in elevation from the basement.

The frequency of the sump operation concerns me. Is this ?normal or a red flag? Are there external things I should consider. Did they put the house on a spot it shouldn't be on? Is this a ?common scenerio? Please advise.

Regards, MNP