Environmental concern about the site of a proposed school off Adelaide Avenue has delayed construction and left school administrators wondering where they will find seats for about 300 high school students this fall.

The fate of the proposed 450-pupil school and the environmental status of the site will be discussed Monday at a 7 p.m. public hearing at the Stop & Shop community room, 333 Adelaide Ave. The meeting is the first of two public hearings scheduled so city officials can present the results of an environmental investigation of the site and plans to clean up the contaminated soil. The site was once part of the Gorham Manufacturing complex.

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The city filed a report on April 1 that said elevated levels of trichloroethylene were found. The amount of trichloroethylene found in a sample was four times higher than what is considered a potential health risk.