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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Maryland webinar gives tips on countering misinformation

By Antoinette Smith • April 1, 2025
In recent years, the recycling industry has seen negative media coverage that has not only perpetuated myths but also contributed to public mistrust of collection and recycling – and ultimately could be contributing to lower collection rates. To help counteract the misinformation, the Maryland Recycling Network presented a March 27 webinar featuring Gretchen Carey, president at MassRecycle, and Chaz Miller of Miller Recycling Associates. Misinformation about recycling was merely “background noise” to Carey until October 2022, when Greenpeace published a scathing report about the failings of plastic recycling. Soon NPR and The Boston Globe picked up the story and compounded the issue with statements like “not even plastic water bottles are recyclable,” Carey said, calling this “a patent lie.” Carey and her colleagues were “crushed,” but after overcoming her initial anger, she reached out to NPR and the Globe to rebut the story. She also tried to get other local publications to publish her written response to the negative coverage but was rebuffed. Seeing that these efforts weren’t going far, MassRecycle invited members of the media and the general public on MRF tours at several sites in Massachusetts and Connecticut. Providing real-time evidence of recycling infrastructure helped industry outsiders step out of the echo chamber and hear a contrasting perspective, Carey said in the webinar. “You can talk the game, but them seeing for themselves is the important part,” she explained. During the tours, the public attendees learned that throwing away recyclables deprives the community of valuable commodities, she said, and that state guidelines restrict what can be put in the landfill. Carey added that the tours brought home the message by explaining that recycled materials need a consistent end market to justify collection and processing. For example, Ardagh closed its glass bottling facility in Massachusetts in 2018. The closure eliminated a key end market for recycled glass and caused collector Strategic Materials to stop taking local recovered glass. Local MRFs subsequently lost that revenue stream. When residents don’t trust recycling infrastructure, they put fewer items in their curbside bins, and ultimately paper, metals and glass wind up as collateral damage, Miller said. So it’s vital to make sure the public knows where their recyclables and that end markets exist to use these materials. Read the full article.

City of Laurel

By Sophie Leone • March 26, 2025
The City of Laurel, Maryland, established in 1870, has a deep and rich history within the state. Its long-standing independence and stability have fostered a strong sense of community, providing residents with valuable resources and support. Laurel is deeply committed to sustainability, embedding green initiatives into its core values, creating a Sustainability Division and completing the City’s first Sustainability Plan as one of many ways to support a sustainable Laurel community. The city’s mission is guided by four foundational pillars: People, Planet, Prosperity, Peace and Partnership. Laurel defines sustainability as “meeting the environmental, social, and economic needs of the present generation without compromising the ability of future generations to meet their needs.” Residents can engage with their community in numerous ways, including joining local clubs, participating in municipal committees, and taking part in community surveys. The city also hosts in-person events such as parades, farmers markets, and sustainability initiatives, further strengthening community bonds. To make waste management, recycling and organics recycling more accessible, Laurel provides detailed information on its dedicated Green Living Resource page found on the City’s website and partners with Recycle Coach, an app that helps residents easily access tailored information on residential collections, recycling and organics recycling. The Recycle Coach app also notifies residents of changes to their service days and special sustainability events. The City of Laurel continues to lead by example in sustainability and community engagement. As environmentalist Wendell Berry once said, “The Earth is what we all have in common.” Laurel’s dedication to green living ensures that future generations will inherit a thriving, sustainable community. NERC is thrilled to welcome the City of Laurel to our growing list of municipality members. We look forward to working with them to help advance our collective missions in safeguarding the planet. For more information on the City of Laurel visit.

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