EXXON / DUNKIN DONUTS - 1425 Mass. Ave. (Rt. 111), Boxborough, Massachusetts
Provencher Engineering was contracted by Verc Enterprises of Duxbury, Massachusetts, to establish a new public water supply well and water system for an existing Dunkin Donuts, gasoline station, and convenience store. Due to the petroleum-contaminated soil, groundwater, and drinking water from a previous gasoline tank leak, and because of limited undeveloped suitable on-site land area, an off-site well location was pursued on leased land with limited development potential, located 1,000 feet from the store.
We conducted a 48-hour pumping test and collected water samples throughout the test. Lab results revealed elevated iron in the well water at 8 mg/L. A design consisting of oxidation and filtration for iron removal was prepared and the pump station was designed and permitted by us. The treated water is stored in a 1,500 gallon atmospheric storage tank inside the pump station, and is re-pumped over 1,000 feet across Route 111 and into the existing building, resulting in a significant improvement in water supply, pressure, and quality.
|