Services Departments Government

Biosolids Management

What are biosolids?
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.

Find out more:
Water Environment Services Biosolids Management Plan
Biosolids Fact Sheet
Application to Receive Biosolids - Gilliam County
Biosolids Application Sites - Clackamas County

Biosolids Team Contact Information

Name Title Contact Information
Kathryn Spencer Environmental Program Coordinator Office: 503-742-4608
Cell: 503-793-7147
Chanin Bays Biosolids Supervisor M-TH: 503-742-4566
F: 503-557-2820
Bob WatsonBiosolids Application Technician 2Office: 503-557/2815
Cell: 503-849-8823


Rules & Specifications

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Water Environment Services
150 Beavercreek Rd. Oregon City, OR 97045

(503) 742-4567

Monday - Thursday 7:30 am - 5:30 pm