The document discusses Portland's biosolids land application program. It provides information on biosolids criteria including pathogen and pollutant reduction, as well as land application sites. Benefits of biosolids for agriculture are discussed such as increased forage growth and soil nutrient levels. Carbon footprint analysis shows biosolids application results in net carbon sequestration. The city's goals for a new biosolids contract include diversifying sites, reducing costs and fuel usage.

1. City of Portland Biosolids Benefits & The Future Citizen Advisory Committee January 27, 2010

3. Class B Pathogen Compliance Demonstration Fecal Coliform Measurement 59,580 Pathogen Reduction 15 days @ 95 ° F

4. Vector Attraction Reduction Volatile Solids Reduction: 63% vs 38% Odor Monitor

5. Land Application Program Class B Biosolids Trace Inorganics mg/kg

6. Lead Concentration (mg/kg) Year PC Limit: 300 mg/kg Ceiling Limit: 840 mg/kg

7. Biosolids Dewatering ~21% Cake

8. 2,013 loads - 2009 36,392 loads – Since 1992

9. Madison Farms – Land Application DEQ Authorized Acreage 554 ac 232 ac 4,578 ac

10. 1992-Present 1,256,171 wet tons (252,760 dry tons)

11. Biosolids Benefits on Semi-Arid Central Oregon Agriculture Mark Ronayne & Greg Charr (City of Portland) Dan Sullivan & Don Horneck (Oregon State University) Kent Madison (Madison Farms)

13. Beef Production Benefits

15. 200,000 gal/yr Canola

18. Evaluation Criteria Weighting

19. Diversification/Haul Savings 2000 Wheat Trial All-Weather Site – Madison Farms

20. New Land Application Sites Sherman County $/Wet ton $34 $22.97 ~$280,000 annual cost savings