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Biosolids Fields - Clackamas County

What are biosolids?

Biosolids are a nutrient-rich organic material generated from wastewater treatment.

The wastewater treatment process separates solids and water, after which clean and disinfected water is discharged to a neighboring water body, while the solids are carefully processed to meet state and federal regulations. This further processing converts the solids into a useful, cost effective fertilizer, which contains a range of plant-essential nutrients.

Water Environment Services operates four wastewater treatment plants, three of which produce biosolids for land application. WES currently applies biosolids to fields in Clackamas and Sherman Counties.

Liquid biosolids from the Kellogg Water Pollution Control Plant are applied to fields in Clackamas County, shown below.

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