OAKHAVEN, Md. — The municipal government of this suburban enclave of 8,000 residents was legally dissolved on Tuesday morning following the discovery of a No. 5 polypropylene margarine tub inside a curbside paper recycling bin.

The discovery, made during a routine bi-annual audit by the Maryland Department of Environmental Protection, triggered an automatic sunset clause in Oakhaven’s 1994 civic charter. Under the terms of the charter, which granted the community independent municipal status and $4.2 million in annual state infrastructure subsidies, Oakhaven was legally obligated to maintain a "0.00% contamination rate" in its residential waste streams.

By Tuesday afternoon, municipal services had ground to a halt. Police cruisers were parked at the municipal garage as officers’ commissions were temporarily suspended, and the public library was locked, its staff technically transitioned into unregistered county volunteers.

"We always knew the margin for error was non-existent, but we trusted the community," said former Mayor Linda Vance, speaking from the steps of a town hall that is now legally classified as an unzoned commercial structure. "To see thirty years of self-governance undone by a single, un-rinsed Land O'Lakes container is devastating. We are currently advising residents to treat all traffic lights as four-way stops until the county takes over our grid."

According to the audit report, the offending tub was located in a blue bin on Elm Street. Because the tub still contained trace amounts of canola oil-based spread, it classified as both a "Class 3 structural contaminant" and an "organic material infraction," instantly violating the strict purity covenants of the 1994 Green Horizons Act.

State officials defended the strict enforcement of the charter, noting that the rules were clearly outlined when the town chose to incorporate under the eco-borough model to avoid county property taxes.

"The statute is unambiguous," said Arthur Pendelton, chief sanitation compliance officer for the state district. "Oakhaven chose to tie its sovereignty to its sorting. If we allow a No. 5 plastic to masquerade as corrugated cardboard in a municipal bin, the entire integrity of the state’s multi-stream initiative collapses. Sovereignty requires vigilance."

For residents, the sudden lack of local government has caused immediate logistical confusion.

"I went to pay my property taxes this morning and there was just a sign on the door saying 'We no longer exist, please consult the county,'" said Sarah Jenkins, a local high school teacher. "My property values are tied to our reputation as the state's premier three-stream sorting community. Now we might be absorbed into unincorporated territory. It's humiliating."

As county administrators prepare to absorb the former town's municipal assets, Vance confirmed that her final act as mayor was authorizing a $15,000 forensic inquiry to identify the household responsible for the margarine tub.

"We are reviewing Ring doorbell footage from Elm Street," Vance said. "We owe it to the former citizens of Oakhaven to find out who did this, even if we no longer have a municipal court to try them in."