Sludge News

About Sewage Sludge

Branded products containing sewage sludge

The majority of sewage sludge is hauled away in trucks and disposed of on American farms. Some is given away or sold as “compost.” Some is dried and made into pellets, bagged, and sold as fertilizer. And sometimes sludge is “blended” into bagged fertilizers. There is no labeling requirement. Sometimes the product is called “biosolids,” sometimes not.

If sewage sludge -- whether “treated” or not -- is used as a fertilizer on crops, the food from these crops cannot receive USDA organic certification. But there is no federal rule that forbids non-organic fertilizers from using the term “organic.” The grower must know what he or she is putting on his or her fields. Gardeners, too, have to do some investigative work if they buy compost or fertilizer.

Branded Products Containing Sewage Sludge
(If you have a sludge product to add, please send information to info at

  • All-Gro (Synagro)
  • Granulite (Synagro)
  • Chesapeake Sunshine
  • EarthMate (Philadelphia, PA)
  • Nutri-Green (Virginia Beach, VA)
  • MetroGro (Madison, WI)
  • ORGRO (Baltimore, MD, Veolia Water North America) 
  • Bay State Fertilizer (Boston, MA)
  • GroCo (Seattle, WA)
  • SilviGrow (Seattle, WA)
  • Oceangro (NJ)
  • TAGRO (Tacoma, WA)
  • SoundGro (Pierce County, WA)
  • Milorganite (Milwaukee, WI)
  • WeCare Compost (NY)
  • CompostT (Pennsylvania)
  • EKO Compost (Missoula, Maui, Lewiston plant on Idaho-Wahington border)
  • Dillo Dirt (Austin, TX)
  • Glacier Gold (Olney, MT)
  • EarthBlends (New York City, a product of Synagro, sold by WeCare)
  • Agresoil (MA)
  • Earthlife (New England, a product of New England Organics)
  • TOPGRO (Los Angeles, CA)
  • N-Viro Soil
  • N-Viro BioBlend
  • Landscapers' Advantage (Camden, NJ)
  • Hou-Actinite (Houston, TX)
  • ComPro (Washington, D.C.)
  • Mine Mix (Philadelphia, PA)
  • Kellogg Nitrohumus, Gromulch, Amend and Topper (Kellogg Garden Products, Los Angeles, CA)
  • Growers' Blend by Earthwise Organics (a Synagro subsidiary)
  • Unity Fertilizer (Unity Envirotech LLC, Florida-baded)
  • Miracle-Gro Organic Choice Garden Soil (Scott's Miracle-Gro Company says, "Some of the most common organic plant foods are bone meal, cottonseed meal, blood meal, fish emulsion, activated sewage and manures.")
  • PocoNite (Sumter, SC)