Objective
Test for PFAS in biosolids fertilizer
Synagro Technologies (Liberty Compost (CA), New England Fertilizer Company (NEFCO)
Synagro is the largest recycler of biosolids in the United States, processing and distributing sewage sludge as fertilizer to agricultural lands across the country. Users of biosolids demand PFAS testing.
Why this is a target
Synagro is the primary actor in the biosolids-as-fertilizer supply chain and has municipal contracts that are financed by taxpayer dollars. While primarily B2B, Synagro's parent company Clean Harbors has consumer-facing environmental services. Targeting Synagro through municipalities and public pressure campaigns is highly viable.
Sources
- https://nationalaglawcenter.org/farmers-file-suit-over-pfas-contamination/
- https://www.mgmlaw.com/news-insights/biosolids-on-trial-the-pfas-lawsuit-against-synagro
- https://www.nytimes.com/2025/03/28/climate/sewage-sludge-fertilizer-pfas-synagro-forever-chemicals.html
- https://extension.psu.edu/an-overview-of-pfas-and-land-applied-biosolids
- https://www.sciencedirect.com/science/article/pii/S0304389424027493#:~:text=PFAS%20concentrations%20ranged%20from%2018,on%20average%20in%20biosolids%20ash.
Alternatives
Do your own research. We provide sources so you can verify and decide for yourself.
Pledges you can make
Public reviews affect Synagro's reputation with municipalities and institutional clients who research vendors online. A detailed, factual review about your concerns with their biosolids practices can influence procurement decisions.
Synagro supplies treated biosolids and compost products to agricultural and landscaping customers. Sourcing these inputs from a competitor removes direct revenue and signals market dissatisfaction.
Some municipalities contract Synagro to manage residential organic waste programs. Opting out of participation reduces the throughput metrics Synagro uses to justify and renew those contracts.
Synagro markets finished compost and biosolids-derived soil products under various brand names at retail garden centers. Switching to alternative compost brands removes consumer revenue and weakens their retail distribution case.
If you work in facilities management, agriculture, or municipal contracting, removing Synagro as an approved vendor directly cuts into their B2B revenue pipeline. This is one of the most direct economic actions an individual professional can take.
For decision-makers at municipalities, utilities, or commercial facilities, ending or not renewing a biosolids processing contract is the highest-impact action available. Synagro's core revenue depends on long-term service contracts with institutional clients.
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