MRF Glass Used as Alternative Daily Cover

July 12, 2023

The Northeast Recycling Council (NERC) has released a report that reveals data about post-consumer recycled glass containers being used at landfills in the Northeast states (Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island and Vermont) and Quebec. NERC’s Glass Committee compiled the Recycled Glass Used as Alternative Daily Cover in the Northeast US & Quebec Report to get a better understanding of the volume of recycled glass containers coming out of Material Recycling Facilities (MRFs) that never reach manufacturers for making new products, but are instead used as Alternative Daily Cover (ADC)—cover material placed on the surface of the active face of a municipal solid waste landfill at the end of each operating day.

“The Report provides great insight into MRF glass that is not reaching manufacturers for making new products and is instead being used at landfills—the lowest value end use with the least environmental benefits,” said Mary Ann Remolador, Assistant Director of NERC and Glass Committee staff lead.

One of the key findings is that 75% of the states/province reported that post-consumer glass collected for recycling is being used as ADC. These states include Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island and Quebec. The glass being used for ADC includes crushed recycled glass that is broken into pieces too small for manufacturers to use in their processing, non-bottle bill glass, and glass meeting the state’s specifications for ADC. The states not using glass for ADC are Delaware, Maryland, and Vermont. 

One of the contributing factors for glass being used as ADC is the poor quality of glass coming from MRFs. It is oftentimes considered too dirty or contaminated for use in manufacturing. The contamination is due to the glass being mixed with other recyclables at the MRFs. In addition, many Northeast US MRFs aren’t equipped with the necessary systems for removing glass at the beginning of the sorting line. This contamination adds weight to the glass, which makes the cost of shipping long distances impractical.   

The Northeast US also lacks enough beneficiation facilities that accept MRF glass to serve the entire region. Beneficiators clean and process glass, making it into a feedstock for manufacturers. Without these facilities, the region’s contaminated MRF glass has no viable market within a practical shipping range. As a result, many MRFs are sending their separated glass to landfills for ADC.

Another key finding from the report is that only 58% of the states/province have data about the tonnage of MRF glass used as ADC. These include Delaware, Maryland, Massachusetts, New York, Rhode Island, Vermont, and Quebec. 

Additionally, 76% do not recognize post-consumer glass used for ADC as recycling (Connecticut, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, and Quebec), and 83% require post-consumer glass to be recycled. Maryland and New Hampshire do not require it.   Also, Massachusetts, Pennsylvania and Vermont (25%) are the only states/province that have post-consumer glass disposal bans.

The report also shows that transparency with the public about what happens with post-consumer glass could be improved in most states. While some states take a proactive approach to ensuring end uses for recycled material are publicly available, others do not readily share this information. 

After a thorough analysis of the compiled information, NERC and its Glass Committee drew the following conclusions:

  • Until more investment is made in the glass recycling infrastructure, MRF glass will continue be used as ADC.
  • Without having consistent outgoing materials reporting requirements for MRFs, it’s impossible to generate data about the total tonnage of recycled glass diverted for use as ADC in the Northeast region.
  • More beneficiation facilities capable of cleaning MRF glass are needed throughout the region to make the glass economical for use as a manufacturing feedstock.

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WRAP

By Sophie Leone • March 25, 2026
WRAP is a global environmental action NGO with a mission to "embed Circular Living in every boardroom and every home". Established in the UK in 2000, it has since expanded to offices in Europe and the USA, with live projects in over 30 countries. There are four main priorities driving their work: future-proofing food, preventing problematic plastics and packaging, accelerating the circular economy, and transforming textiles. Textiles, food, and manufactured products account for nearly half of the climate problem, and WRAP has acknowledged that a new approach is needed to mitigate the climate crisis. Their new approach, "Circular Living" — detailed as "design-make-reuse" — targets the root causes of this crisis across the entire product lifecycle. Their website offers diverse resources, including successful case studies on housing, farming, food waste, waste collection, and much more. Along with these case studies, WRAP offers webinars, resources guides, campaign tools, reports, and more. Their dedicated work has allowed them to expand their reach globally, impact the industry on all levels, and produce critical information materials. "Everyone I meet in this field is someone who looks at an object and says, "I can make something with that" - and they built a career on solution-seeking. In a time of supply chain disruptions and market volatility, the recycling industry's can-do (pun intended) mindset is critical for recovering value and reducing demand for resource extraction. WRAP is excited to join NERC and connect with members supporting this vital component of the circular economy." Sarah Morley – Strategic Engagement Manager at WRAP Americas NERC is excited to welcome WRAP to our impactful team of NGO’s. We look forward to supporting their mission and the incredible work they do around the world. For more information on WRAP visit.

University of Vermont Casella Center for Circular Economy and Sustainability

By Sophie Leone • March 24, 2026
The University of Vermont (UVM) launched the Casella Center for Circular Economy and Sustainability in 2025, with support from a large gift by Casella Waste Systems, Inc. The Center is a “research hub developing sustainable solutions for waste and materials management that reduce pollution and create economic opportunities.” The work done in the UVM Casella Center builds on three decades of collaboration between Casella Waste Systems and UVM. The Casella Center is a part of the Rubenstein School of Environment and Natural Resources. The Rubenstein School has “prepared environmentally and socially responsible leaders, scientists, practitioners, and advocates” for 50 years. While based in the Rubenstein School, the Casella Center includes UVM faculty affiliates and students spanning multiple disciplines and Colleges, including engineering, agriculture, life sciences, and policy. “At the UVM Casella Center, we are focused on the intersection of rigorous scholarship and practical solutions. This requires us to work collaboratively with many stakeholders, including those in the public and private sectors working hard daily to improve our materials management systems. Joining NERC will help us stay connected to the Northeast sustainable materials management community.” – Dr. Eric Roy, Director, UVM Casella Center for Circular Economy and Sustainability NERC is excited to welcome The University of Vermont Casella Center for Circular Economy and Sustainability to our growing group of academic institutions. We look forward to supporting their students and ongoing efforts to make lasting environmental impacts. For more information on UVM Casella Center for Circular Economy and Sustainability visit .

Northeast recycled commodity values hit 5-year lows

By Antoinette Smith | Resource Recycling • March 6, 2026
Fourth-quarter MRF commodity values in the Northeast reached five-year lows, as they continued to drop but at a decelerating pace, according to Northeast Recycling Council survey data released this week. The average value for all commodities fell to $68.41/ton without residuals, lower by 8.96% on the quarter. This level marks the lowest point since Q4 2020, when the grade hit $60.46. The report includes responses from 18 MRFs representing 12 states: Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont and Virginia. With residuals, average values were at $52.49/ton with residuals, lower by 12.75% – the lowest point since Q3 2020, when the grade reached $40.19. The report also detailed the change in Q4 average values, with For PET, PP and mixed plastics (#3-7), as well as steel cans, the rate of decrease slowed in the quarter, while OCC, aluminum cans and mixed paper continued falling at the same pace as the previous quarter. Average pricing for both natural and color HDPE bales, brown glass containers and all other paper rose in Q4. However, clear glass, green glass and 3-mix glass containers, along with bulky rigids, fell during the period, after rising in Q3. The report points out that recovered glass often is marketed but at a negative value, meaning recipients are paid to take it away. Single stream decreased by 7.87% without residuals and by 9.82% with residuals, while dual stream/source separated materials fell by 10.57% without residuals, and by 18.98% with residuals. Although dual-stream MRFs did not decelerate as much as their single-stream counterparts, they did see a higher average commodity price compared to single stream for both with and without residuals. Residual material cannot be sold and is landfilled. The report also showed the 2024 share of each material at 18 MRFs, with OCC and mixed paper representing nearly one half of incoming volumes. Of the included states, five have deposit return systems for beverage containers, which results in fewer glass bottles, PET bottles and aluminum cans winding up in MRFs there. In addition, MRFs in those states typically generate less revenue from those recyclables, the report said. The report also showed the 2024 share of each material at 18 MRFs, with OCC and mixed paper representing nearly one half of incoming volumes. Of the included states, five have deposit return systems for beverage containers, which results in fewer glass bottles, PET bottles and aluminum cans winding up in MRFs there. In addition, MRFs in those states typically generate less revenue from those recyclables, the report said. Of the three approaches reflected in the report – single stream, dual stream and source separation – single stream is the most common. Read the article on Resource Recycling's website.