Enterprise Rent‑A‑Car asked the Chelsea Planning Board for a modification to its Marginal Street facility that would add truck rental capacity, expand the car‑wash area and split an existing underground fuel tank to provide both regular gasoline and diesel fuel.

Project scope and changes

Scott Rogers of JK HomeGood Engineering briefed the board. The requested changes include demolition of a small existing triangular building, a roughly 1,600‑square‑foot car‑wash addition near Willow Street, reconfiguration of a Marginal Street parking area (including employee and ADA spaces), improved storm drainage via trench drains connecting to an existing basin, and new landscape plantings along Marginal and Willow streets. Rogers said there would be no net increase in impervious surface; the site sits inside an AUL (an actively managed contaminated site) and the plan works within the existing paved footprint.

Fueling and fleet operations

The applicant proposed replacing the site’s single 9,500‑gallon underground storage tank with a split tank to deliver both gasoline and diesel at separate dispensers. Rogers said the permanent tank capacity would not change, and the split would support an incoming fleet relocation from an Enterprise facility on Easton Avenue.

Board finding and vote

After reviewing the materials and staff comments, the planning board determined the requested changes constituted a minor modification to a previously approved site plan rather than a major modification requiring full re‑submission and public re‑notice. A motion to treat the application as a minor site plan revision carried unanimously. The board asked the applicant to file required conservation and drainage documentation with the Conservation Commission and to follow the operation and maintenance plan submitted with the application.

Next steps

The applicant said it plans to finish construction by year‑end and will proceed with Conservation Commission filings and coordination with city staff on final engineering details.