Could be a spring, could be a septic problem if you have a septic system,or it could be a secondary waste line from your washer, it could be a leak from your main water line into the house or it could be a leak on the water districts line. Water is a funny thing and the source could be up hill a ways from where it actually hits the surface.
Depending on the "pond" you have in the yard you could simply pump the water, dig temporary drain trenches to distribute the water but first you need to try to determine the source. If indeed it is a spring and it JUST showed up then you want to make sure it is not going to affect your homes foundation.
Sorry for adding more questions than answers.
If the wet areas last more than 5 days, Consider planting a wetland habitat for wildlife to turn lemons into lemonaid!