OCSD Process Chart OCSD Process Chart from Eric Reese OCSD Process Chart Vector illustrations of different stages of the sanitation treatment process for the Orange County Sanitation District, Huntington Beach California. Settling Chamber Digesters Trickling Chamber Aeration Chambers Biosolids Silo Generators powered by biofuels Natural Gas and Hydrogen pumps. gLike OCSD Process Chart Vector illustrations of different stages of the sanitation treatment process for the Orange County Sanitation District, Huntington Beach California. Illustrator Illustration Share R 7 n Available Full-time Eric Reese Illustrator Huntington Beach, CA Follow Contact