LANDER, WY. (AP) — The Wyoming Department of Environmental Quality has determined that a Lander convenience store and gas station is the source of gasoline leaking into the Popo Agie (pah-POH’ shuh) River.

The agency says the Maverick Country Store overfilled its underground gasoline storage tanks causing the fuel to migrate into the nearby river.

The department filed a notice of violation Friday afternoon against the store for failing to make repairs that would prevent overfilling its underground tanks. The company can appeal the action to the state Environmental Quality Council.

The leaking gasoline was found earlier this month after residents reported gas fumes coming from the river. Measures have been taken to contain the leak.