San Jose Creek Water Reclamation Plant

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San Jose Creek WRP aerial San Jose Creek Water Reclamation Plant
1965 Workman Mill Road
Whittier, CA 90601
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The San Jose Creek Water Reclamation Plant (WRP) consists of two hydraulically interconnected facilities that are situated on the east and west side of the San Gabriel River (I-605) freeway. It currently provides primary, secondary, and tertiary treatment for a design capacity of 100 million gallons of wastewater per day (MGD) and serves a large residential population of approximately 1,000,000 people.

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View the diagram below for an enlarged view of the treatment process at San Jose Creek WRP.

San Jose Creek WRP schematic

Water Reuse

History

The San Jose Creek WRP occupies 39 acres north of the Pomona Freeway (SR-60) on both sides of the I-605 Freeway and began operation in June 1971 with a design capacity of 37.5 MGD. The 25-MGD Stage II expansion was completed in 1982, and the 37.5-MGD Stage III expansion was completed in 1993. The facility currently has a design capacity of 100 MGD. Flow equalization tanks with a total of 8 million gallons of storage capacity are being placed into operation in 2020.

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San Jose Creek Water Reclamation Plant