For most of living memory, the view of Oyster Bay Harbor from the hamlet was interrupted by twenty-one oil storage tanks. They went up in 1962, they held as much as 400,000 gallons, and they sat on the water between the village and the bay like a wall nobody could see past.

They are gone. The demolition is complete, and for the first time in sixty-three years there is open ground where the tank farm stood.

What goes there next is now the most consequential question in the Town of Oyster Bay, and the answer depends less on architecture than on chemistry.

What the town wants

Town Supervisor Joseph Saladino has been explicit about the vision, and he has reached for two comparisons that tell you exactly what he has in mind: Mallory Square in Key West and Seaport Village in San Diego.

Both are the same idea. A working waterfront converted into a public plaza with shops and restaurants around it, where the point is that people can walk to the water's edge and stay there.

"There's a renaissance going on in Oyster Bay, and now this waterfront brings an enormous dynamic to that renaissance," Saladino said.

The hamlet has a reasonable claim to the word. Oyster Bay has Theodore Roosevelt's Sagamore Hill, Planting Fields, a working oyster industry, a downtown that has genuinely improved, and the largest waterfront festival on the East Coast. Oyster Fest returns for its 43rd year the weekend of October 17 and 18 and draws as many as 200,000 people to a hamlet of a few thousand.

What it has not had is a waterfront the public can actually use on an ordinary Tuesday.

What is in the ground

Here is the part that determines the timeline.

The site is an active brownfield cleanup site. That designation is not a formality. State Department of Environmental Conservation records indicate the property contains PFAS compounds, the so-called forever chemicals, along with metals and organic compounds left by more than a century of industrial use.

The tanks are only the most recent chapter. The land has been industrial since 1897. Before the oil came, it was a sawmill, an ice plant and a coal yard. Each of those left something behind.

Remediation of both soil and groundwater is planned. The DEC's own framing of a cleanup like this is that it can be an enormous challenge and an expensive one, which is unusually blunt language for a regulatory agency and should be read as exactly what it says.

PFAS in particular is the difficult one. It does not break down on its own, standard soil removal does not necessarily solve it, and on a site directly on a harbor the groundwater question is not academic.

What has not happened yet

No formal development application has been submitted. There is no site plan, no developer selection, no public hearing on a specific proposal.

What exists right now is environmental investigation and remedial planning, which is the correct order of operations and also the slow one. The town has said community input is important to the process, which is the sort of statement that means something only if there is a process to input into, and that process has not started.

The land is privately owned. Saladino has described discussions with the landowner. A public plaza on private property requires either a purchase, a partnership, or zoning that makes the public component a condition of anything getting built. None of those has been settled.

Why residents should pay attention now rather than later

Waterfront land in a harbor village with a train station is among the most valuable property on Long Island. The market answer for a cleared, remediated parcel on Oyster Bay Harbor is not a plaza with shops. It is housing, or a marina complex, or both.

That is not a criticism of anyone's intentions. It is arithmetic. Cleanup on a PFAS site is expensive, and whoever pays for it will want a return, and the returns on public plazas are indirect.

The moment when a community's preferences actually shape a site like this is before an application is filed, while the zoning and the terms of any public-private arrangement are still being written. That moment is now, and it is quiet, and it will not announce itself.

Sixty-three years of tanks came down. What replaces them is likely to stand for at least as long.