Orange County Sanitation District operates and maintains two Class V treatment facilities which produce high quality treated effluent and biosolids. OCSD makes available upon request process samples that can be used for educational or technological research. If you would like to request process samples from either of our two treatment facilities, please click here to complete the “Biological Materials Request form” and sign with blue ink.
Please mail completed form to:
Orange County Sanitation District
Attention: Plant 1 Control Center
10844 Ellis Ave
Fountain Valley, CA 92708