Basement water advice on downspouts

[Adam Craig]

We just closed on our first house! The basement just had a mold remediation done and the flooring removed. Its only going to be a laundry room so my plan is to continuously run a dehumidifier and cross my fingers though I think it will require more work.

Its been raining in ohio the 14 out of the last 15 days so hopefully it clears up - but there are some small standing puddles near the walls on 3 out of 4 sides. There is defiantly water coming in near the floor/wall.

There are a couple things I am going to take care of like a sloping sidewalk and gutters cleaned. But I am suspicious of the downspouts being too close to the house. I have read about extenders but know nothing about them. How do I check to see where my downspout goes? Do I have to dig real deep?

Suggestions or steps to take before B-Dry or other waterproofing?