Wednesday, July 2, 2008

Closing the Hartford landfill

These aerial photographs of the Hartford landfill offer a bird’s-eye view of closure activities there. Above, seven acres of the Hartford landfill ash area are seen at lower right. The black area is the plastic geomembrane, the orange area is drainage geocomposite, the tan area is drainage sand, the white stripe herringbone pattern is drainage pipe and the reddish color is cover soil. Below, 10 acres of the main landform are also being closed as seen lower right. The tan area on top of the black plastic is drainage sand and the white stripes are drainage pipes.

CRRA has begun closing the Hartford landfill.

Taking advantage of the fact that most of the landfill has already been filled to capacity with ash from the Mid-Connecticut Project trash-to-energy plant and stuff that can't be turned into electricity, two capping projects are under way. In fact, by next June CRRA expects to have capped 52 of the landfill's 96 acres.

In 2007, CRRA contracted with ET&L Corporation of Stow, Mass., to close the western half (approximately seven acres) of the 16-acre lined ash area. Plastic geomembrane installation is complete in the area and soil deployment is ongoing. The project is expected to reach substantial completion by August.

Also in 2007, CRRA contracted with R. Bates & Sons, Inc., of Clinton, Mass., to close approximately 45 acres (the south and west sides) of the 80-acre main landform and build a new access road on the landfill.

Plastic geomembrane installation is complete over approximately 11 acres in the southeast corner of the site. The contractor has begun deploying cover soils above the membrane and will soon begin placing and compacting approximately 44,000 cubic yards of soil necessary for the new access road. Once the new road is built, the contractor will begin capping the west side (the side facing Route 91) of the landfill.

Capping of all 45 acres is expected to be substantially complete by June 2009.

Closure of these 52 acres will require the importation of approximately 210,000 cubic yards of soil material. Closure of the remaining 44 acres of the landfill is scheduled to occur in 2009 and 2010.

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