compost facility

January 8, 2024

SCS Engineers Organic Composting
Organic Composting – permit and build a regional compost facility that will accept food and yard waste.


At USCC 2024 Dave Aldridge of the Southeastern Connecticut Regional Resources Recovery Authority and Greg McCarron of SCS Engineers present Planning and Development of a Public Compost Facility based on a compost facility and programs when disposal capacity is nearing its limit.

The Southeastern Connecticut Regional Resources Recovery Authority (SCRRRA) is the waste management and recycling authority for its twelve member municipalities. Since 1984, SCRRRA has been responsible for implementing solid waste recovery systems, and coordinating recycling and disposal services. Due to the closure of a major waste-to-energy facility in July 2022, Connecticut has a shortfall in disposal capacity that has resulted in an estimated 860,000 tons of municipal solid waste being shipped out of state for disposal, mostly to landfills. SCRRRA estimates that disposal tipping fees will exceed $100 per ton in the near future.

The Connecticut Department of Energy & Environmental Protection’s Comprehensive Materials Management Strategy recommends implementation of organics collection programs and processing facilities, in an effort to manage waste within the state. Aldridge and McCarron’s presentation covers the planning and development steps taken by SCRRRA to permit and build a regional compost facility that will accept food and yard waste. The proposed facility will accept organic material from all of its member towns and regional businesses, and produce a high-quality soil amendment for farmers and gardeners. SCRRRA will also provide finished compost, at reduced cost, to disadvantaged communities in the region, for community gardens and beautification projects.

Planning and Development of a Public Compost Facility covers the following topics:
1. Regional waste landscape.
2. Permitting and execution of an aerated static pile (ASP) pilot test.
3. Preparation of a feasibility study and pro forma.
4. Site options and considerations.
4. Local site permitting, and,
5. Next steps, including design and construction.


About Aldridge & McCarron: David Aldridge is the Executive Director of the Southern Connecticut Regional Resources Recovery Authority responsible for implementing solid waste recovery systems, recycling, and disposal services in twelve Connecticut municipalities with a population base of 230,000. Dave has been the Executive Director of SCRRRA for over 12 years, responsible for all financial, administrative and operational functions of the Authority using his 25 year background as a logistics industry executive responsible for transportation and distribution with expertise in process improvement and operational efficiency.

Gregory McCarronAs a Vice President, Greg McCarron is responsible for overseeing SCS’s nationwide organics management practice. He works closely with SCS’s national and regional clients, completing projects covering all aspects of solid waste management, including composting and anaerobic digestion. Typical these include designing, permitting, constructing, and operating compost and anaerobic digestion systems and facilities for public and private clients. His experience includes operations, project management, design, permitting, regulatory support, construction oversight, system start-up, economic analysis, and technology assessments. Reach out to Greg at m or on LinkedIn.

Both speakers are engaged with many associations, coalitions, and committees focusing on leading edge waste management in the U.S. including the US Composting Council.




Posted by Diane Samuels at 6:00 am

January 11, 2016

Food-Waste-CompostingOrganic materials management is of high interest in our industry.  This interest is being driven by state and city regulations and other government policies for diversion of organics from disposal facilities.  Five states have food waste disposal bans, including Massachusetts, California, Vermont, Connecticut and Rhode Island, which are in various stages of implementation.  Some cities have food waste disposal bans, including San Francisco, Seattle, Portland (Oregon), and Austin.  Many states and government agencies have organic diversion policies and goals; e.g., USEPA has a 50 percent reduction goal for food waste sent to landfills, nationwide, by 2030.

SCS is helping public and private entities evaluate their organic waste streams and the applicability of established and emerging technologies (e.g., composting, anaerobic digestion) to their specific communities and circumstances.  Current and recent project examples include the following:

  • Compost facility design, permitting, and operations at for five compost facilities in the Northeast, located in Massachusetts, Rhode Island and New Jersey. For the Sam White and Sons, Inc. compost facility located in Middleboro, Massachusetts, operations services include provision and use of a truck-mounted mixer to mix food and leaves, and a Komptech X-60 compost turner to turn the windrows. Sam White sells the finished product through its network of purchasers.  SCS has had “boots on the ground” at this facility since 2013, gaining real-world experience with open-windrow composting of various organic materials.
  • Organics recycling plan for Eastern Placer County, California. SCS is currently assisting the County develop an organics recycling plan, which includes evaluating technologies (e.g., in-vessel composting, aerated static pile (ASP) composting, anaerobic digestion) and recommending an approach to fit their specific needs and circumstances.
  • Characterization of diverted waste materials for composting at the University of Maryland (UM).  This was a one-week residential pilot project at Easton Hall on campus. SCS hand-sorted the materials and compiled the data and results into a letter report.
  • Evaluation of organic waste processing facilities for the Town of Smithtown, New York. SCS is researching and evaluating the impacts of organic waste processing facilities (OWPFs), and identifying the Best Management Practices (BMPs) for operating and regulating indoor OWPFs. SCS’s work will support the Town’s efforts to develop and implement ordinance amendment(s) that would permit and regulate such facilities in the Town.


SCS is actively pursuing work in the organics materials management sector and has a staff devoted to staying current with the latest trends and technologies.  SCS can evaluate, design, permit, construct and operate organics facilities, using varying technologies.  Compost technologies that SCS is considering for implementation include:

  • Open, turned windrows
  • Aerated static piles with covers
  • In-vessel systems

Anaerobic digestion (AD) technologies that SCS is considering for implementation include high solids (dry) or low solids (wet) systems.  High solids/dry systems are applicable for food and yard waste.  Dry systems for food and yard waste generally use tunnels, which are gas-tight, concrete, garage-like chambers and are loaded using front-end loaders.  Low solids/wet systems are applicable for manure, sludges, and liquid industrial waste.  Wet systems generally use vessels, which are mixed and are fed using pumps.

Learn more about these SCS services.

About Greg McCarron

Greg McCarron meeting friends and clients at Wastecon 2015.
Greg McCarron meeting friends and clients at Wastecon 2015.


Posted by Diane Samuels at 6:00 am