The Montecito Branch book drop will be closed May 3rd - 6th due to parking lot repaving

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Help shape the future of Santa Barbara's Waterfront! Respond to our survey at SantaBarbaraCA.gov/WaterfrontSurvey.
¡Ayúdanos a dar forma al futuro de la zona costera de Santa Bárbara! Responde a nuestra encuesta en SantaBarbaraCA.gov/WaterfrontSurvey.

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All SBPL locations will be closed on Tuesday, May 5, 2026 (5/5/26) for a staff training.

Eastside and Montecito Libraries will close at 2pm on Wednesday, May 6, 2026 (5/6/26) for a staff training.

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Title

O & M Manual

Body

El Estero Water Resource Center

EL ESTERO
GENERAL
PRELIMINARY
TREATMENT
PRIMARY
Treatment
SECONDARY
TREATMENT
FINAL
EFFLUENT
TERTIARY
TREATMENT
SOLIDS
HANDLING
PLANT
UTILITIES
ELECTRICAL
DISTRIBUTION
ADMIN
FACILITIES
MOBILE
ASSETS
LIFT
STATIONS
All PRocess Area OVerviews 
Sections

1204 - Return Activated Sludge

12 Secondary Treatment
The Return Activated Sludge process is powered by 4 centrifugal pumps that pump the sludge from a wet well back to the aeration basins.…

SOP Content Pages

12 RAS Pump Start Up

Three 30 HP, variable speed, non-clog type pumps each with a capacity of 3750 gpm make up the RAS Pumping System. Two pumps provide…
Total results: 1 1

Plant Schematic

El Estero Schematic Drawing