Municipal Landfill Assessment, Closure, Monitoring, and Solid Waste Recycling Drop-off Area Development

Partnership

Environmental Partners was built on the core philosophy that a strict focus on client service through partnership creates added value for our clients.

What's New

Partnership

Environmental Partners was built on the core philosophy that a strict focus on client service through partnership creates added value for our clients.

What's New

Municipal Landfill Assessment, Closure, Monitoring, and Solid Waste Recycling Drop-off Area Development

Hanover, Massachusetts

Overview

The Hanover Landfill was never capped after it ceased operation in the 1970’s. DEP-SERO required the full assessment and capping of the 7-acre landfill under the Solid Waste Regulations. In addition, the Town needed a modern solid waste drop-off and recycling center to meet the demands for increased recycling and more efficient operations.
Environmental Partners completed a Comprehensive Site Assessment, which was approved by DEP, and in then provided conceptual closure design, final plans and specifications, and construction administration services. DEP-SERO approved an innovative post-closure use that allowed the Town to upgrade their solid waste handling needs.

Approach

Environmental Partners worked closely with the Town to determine their long-term goals for the site, which included upgrading their transfer station and recycling operations. By approaching the project in this manner, the Town has been able to successfully negotiate scopes that meet their overall objectives and that are both cost effective and efficient. Based on our experience, we are aware that the assessment phases of the process are critical for subsequent phases. Therefore, our approach was adopted early in the assessment process.

Solution

Environmental Partners successfully negotiated with DEP-SERO a scope of work for completing the CSA, and supported the Town of Hanover in negotiating a reduced scope of subsurface investigations and made subsequent recommendations for post-closure use. For example, DEP-SERO was requiring the installation of costly bedrock wells, and our advocacy led to a decision to eliminate bedrock wells from the scope of the investigations.

Environmental Partners negotiated an innovative beneficial use to the State’s standard capping detail over a 3-acre portion of the landfill. This allowed the Town to pave this area for use in their expanded recycling and waste drop-off activities. To this end, we also prepared several conceptual closure and facility expansion designs for the Town. The closure consisted of installing a standard solid waste cap (gas venting layer, 40 Mil High Density Polyethylene Liner, sand drainage layer, and vegetative layer) over 4-acres of area; a paving cap over 3-acres; a passive gas collection system; and surface water controls. The capping construction also accommodated the active transfer station operations, had several wetland permit issues and required a MassHighway Department State Highway Access Permit.

After completing the cap construction, Environmental Partners prepared and submitted a Post-Closure Operation and Maintenance (O&M) Plan in accordance with DEP requirements. The O&M Plan detailed long-term environmental monitoring and reporting requirements for the site.

Environmental Partners continues to perform the long-term landfill monitoring that was detailed in the O&M Plan and is in accordance with DEP Solid Waste regulations.. The monitoring program includes the bi-annual collection of groundwater, surface water, and landfill gas samples.