BREWER – The planning board will consider an amended site plan for a proposed Wal-Mart Supercenter during its meeting at 6 p.m. Monday at City Hall.

Project Manager William Bloemen of Sain Associates, the Bangor firm managing the project, said the proposed changes to the site plan approved last summer are aimed at reducing impact on wetlands and improving parking, drainage and storm water management on the site.

Proposed is a 158,400-square-foot store to be located on a 24-acre parcel on outer Wilson Street. Drew Sachs, the city’s economic development director, said the $10 million to $12 million Supercenter will generate between $250,000 and $300,000 in new property tax revenue after it is completed.

The store will employ about 300 people, about 70 percent of those positions full-time. Plans are to have the store open 24 hours a day.

According to Bloemen, Wal-Mart has received the necessary permits from the state Department of Environmental Protection and the Army Corps of Engineers.

Pending are a traffic movement permit, which project officials expect to have in hand within the next month or so, and approval of plans for offsite transportation improvements, Sachs said.

Among the offsite improvements anticipated as part of the Wal-Mart project are the widening of a section of Wilson Street to five lanes from the current four and the installation of traffic signals.

If all goes to plan, construction will begin in late summer and the store will open early next year, officials said.

According to Wal-Mart officials who visited Brewer when the project was unveiled last year, Supercenters typically carry a full-service grocery department that generally includes produce, meat, dairy, frozen food, bakery and deli sections, along with the usual general merchandise departments.

While some Wal-Mart projects have included gasoline stations, Sachs said the company’s plans for Brewer do not call for one.

A notable aspect of the project is that the Brewer store will be among the first to use the so-called “New England design.” Wal-Mart traditionally has used a gray, red and blue color scheme. The prototype, developed at the behest of Brewer senior planner Tom Kurth, calls for an earth-tone exterior in shades of tan with dark green accents. Keeping with the New England theme, dormers and gables will be used at the one-story building’s primary entrances.

Despite speculation the Brewer store would be scrapped once barriers to the proposed Bangor store were removed, officials involved in the project say plans for the Brewer store remain on track.

“We’re confident that there’s enough of a market in the region to support both stores,” said Keith Morris, Wal-Mart’s director of community affairs for New England.

The Brewer store originally was one of three proposed for the region, with others proposed for Bangor and Ellsworth.

The Bangor project is the subject of a court challenge and needs approval from the state Board of Environmental Protection, which has expressed concerns about the project’s proximity to the Penjajawoc Marsh.

The Ellsworth project, however, was scrapped in January after Wal-Mart officials learned the company would have been required to make an estimated $3 million in traffic improvements in order to build a Supercenter at the intersection of Route 3 and Myrick Street.

Bloemen noted the fact the Ellsworth store has been taken off the drawing board strengthens the Brewer store’s position.