Otter in Union County?

[logs22]

So I was doing a little night fishing at Lenape Park pond, which isn't my preferred local spot but everywhere else is offimits for stocking so I decided to make due. As I walked up I saw something swimming and splashing around. I figured it was just a carp as that pond is filled with them so I turned on my headlamp and what i saw was definitely no carp. It looked to me like an otter. I thought maybe it was a muskrat but as I watched it was way too fluid and sleek for a muskrat. It was swimming around more like a seal than any muskrat or beaver.i have seen. I checked online and see that there are otters all over NJ but I found no record of one ever being spotted in UC. Anyone else come across otters in NJ?