Stonington — A borough couple has notified the town that they intend to sue over the unofficial dog park at the town dock next to their property.

Laura Ann Gabrysch and Frank Mastrapasqua served the town with the notice Tuesday, claiming the dog park has decreased the value of their property at 13 Front St. and resulted in the diminution of their right to “the use and quiet enjoyment” of their property and the dog park site.

The notice lists numerous town and borough officials as defendants. The land is owned by the town.

First Selectman George Crouse could not be reached for comment Tuesday about the notice.

The notice alleges the town has maintained the land as a dog park without any authority and in violation of various regulations, installed a fence in June that has allowed people to let their dogs run off leash in contravention of borough regulations, installed a gate that has given the dogs and their owners access to Stonington Harbor and an adjacent beach area and refused to enforce the borough leash law.

The notice also charges the town has failed to determine if the dog waste will create any adverse environmental impact on the harbor and, by allowing dogs to roam unleashed, infringed on the public’s right to use the area.

They also state that the defendants have created “an environment of increased tension and hostility” between adjacent property owners and the public by condoning the activity of dog owners, failed to take steps to protect the public from the dangers of an unregulated dog park and created a condition that interferes with adjacent property owners’ use of their homes due to barking and other harassing behavior by dogs and their owners.

The notice is the latest development in the long-running dispute between a few neighbors of the dog park and the town.

In July 2014, police said Gabrysch displayed and turned on a stun device while ordering two children to get their dog off the tiny beach below her seawall.

Later that day, police were back at the park when a resident complained that Gabrysch and Mastrapasqua had placed a mixture of paprika and pet repellent on the rocks, sickening a dog.

Police said they admitted to putting the mixture on the rocks.

No arrests were made in either of the incidents, but police said they issued warnings.

Just before sunset Tuesday night, eight dogs roamed the fenced park with their owners nearby.

One gate near the couple’s home was locked with two heavy duty locks and a thick chain.

A gate along the western border of the property was open to the town dock.

j.wojtas@theday.com

Twitter: @joewojtas