Biogro Program


Our biosolids program, known as Biogro, began in 1975. Biogro oversees the beneficial reuse of our wastewater biosolids, including contracts associated with digester cleaning, transport and application services.

Biogro's manager is responsible for:

  • the program budget,
  • beneficial reuse site authorizations,
  •  communication with clients,
  •  application strategies,
  • future direction,
  • active participation within the biosolids community,
  • all state and federal reporting and documentation requirements.


Our Biogro Program will provide an environmentally sound, publicly acceptable, cost-effective biosolids reuse program, while protecting public health, watersheds, and agricultural lands, in compliance with all federal, state, and local biosolids regulations and management practices.

Biogro products

Willow Lake Water Pollution Control Facility produces liquid and dewatered Class B biosolids products. Biosolids are stabilized to meet pathogen reduction and volatile solids reduction requirements in the 40 Code of Federal Regulations (CFR) 503 Regulations under 503.32(b)(3) and 503.33(b)(1).

​2020 Biosolids production and application statistics

In 2020, we generated 3,528.41 dry tons of biosolids. The Biogro Program managed 24 biosolids applications on 2d DEQ authorized sites totaling 1,060 acres.

The sites consisted of the following:

  • Hay
  • Grass seed
  • Wheat production


2019 Annual-Biosolids-Report12004 KBannual-biosolids-report-2019.pdf
2017 Annual Biosolids Report32296 KBannual-biosolids-report-2017.pdf
2016 Annual Biosolids Report183 KBannual-biosolids-report-2016.pdf
2015 Annual Biosolids Report185 KBannual-biosolids-report-2015.pdf
2014 Annual Biosolids Report184 KBannual-biosolids-report-2014.pdf
2013 Annual Biosolids Report212 KBannual-biosolids-report-2013.pdf
2012 Annual Biosolids Report199 KBannual-biosolids-report-2012.pdf
2011 Annual Biosolids Report53 KBannual-biosolids-report-2011.pdf
2010 Annual Biosolids Report53 KBannual-biosolids-report-2010.pdf
2009 Annual Biosolids Report52 KBannual-biosolids-report-2009.pdf
2008 Annual Biosolids Report50 KBannual-biosolids-report-2008.pdf
2007 Annual Biosolids Report32 KBannual-biosolids-report-2007.pdf

Contact us

Mark StevensonBioGro SupervisorPublic Works Department
5915 Windsor Island Road N.
Keizer, OR 97303
503-763-3479Phone503-588-6380Main Office


Additional information