Dina Armstrong, 51, was issued a summons early Thursday for permitting minors to possess alcohol during a high school graduation party at her Bradley Street home.
Officers were dispatched to the house after receiving a complaint about a loud party around 12:30 a.m. Thursday. When they arrived, about 30 teens were in the backyard, some holding beer cans and others playing beer pong, according to the report.
As officers walked into the backyard, police said, Armstrong emerged from the house and said she had the party under control and that none of the teens were driving.
The alcohol was poured out and parents of the teen partyers contacted.
The graduation ceremonies for both Fairfield Ludlowe and Fairfield Warde high schools had taken place Wednesday evening.
Armstrong was released on a promise to appear June 20 in Bridgeport Superior Court.