Yes. In Alberta, regulations were put in place after an incident in Rosebud, Alberta. It was believed that some shallow fracs in coal bed methane had interfered with groundwater. Since then there have been limitations on how shallow you can carry out fracs in that jurisdiction.
In terms of good oil field practice, there are also a lot of different calculations around the planning of the frac inside good engineering practices to make sure it's contained where you want it to be.