After conducting research, it appears that there are several boat ramps named "New Market" in Pennsylvania. However, based on the provided latitude and longitude coordinates, it is likely referring to the New Market Boat Ramp located in Lancaster County.

According to the Pennsylvania Fish and Boat Commission, the New Market Boat Ramp is a concrete ramp with a 16-foot width. It provides access to the Susquehanna River, specifically the section known as Lake Clarke. This body of water is popular for boating, fishing, and other recreational activities.

As for the kind of craft permitted on the water, the Pennsylvania Fish and Boat Commission states that motorized boats, canoes, kayaks, and other non-motorized boats are allowed on Lake Clarke. However, it is important to note that specific regulations and restrictions may apply, such as speed limits, wake restrictions, and safety equipment requirements.

It is important to note that information regarding boat ramps and waterways can change over time. It is recommended to always check with local authorities or the Pennsylvania Fish and Boat Commission for the latest information and regulations before using any boat ramp or waterway.