Water Administration
1212 5th Street, 3rd Floor
Santa Monica, CA 90401
See Water Resources Contacts
for contact information.
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Water Resources Protection
Wastewater Monitoring
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This outfall at 443 Palisades Beach Road is the interceptor for raw sewage flow into the City of Santa Monica.
The line runs under Pacific Coast Highway and originates from Pacific
Palisades in the City of Los Angeles. Influent to this location is
about three million gallons per day. A similar installation at 3110
Main Street conveys the combined effluent from Pacific Palisades and
the City of Santa Monica. This combined effluent is approximately
eleven million gallons per day. It is routed back into the City of Los
Angeles sewer system and is processed at the Hyperion Wastewater
Treatment Plant in Mar Vista. City of Santa Monica Environmental and
Public Works Management is responsible for the management and
monitoring of sewer flows within the City limits.
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The sewage stream is sampled by an automated sampler that is programmed
and maintained by CSM staff. A broad array of pollutants are sampled
for. Biological Oxygen Demand (BOD), Priority Pollutant metals (metals
p.p. - i.e.; lead), pH - acidity and total suspended solids are
pollutants which are screened for with sampling every three months.
Annually, pesticides and volatile organic compounds are also screened.
A California State Department of Health Services accredited laboratory
performs the analyses. Analyses are included in a six month and annual
report to the City of Los Angeles Bureau of Sanitation.
All wastewater sample analyses indicate the City of Santa Monica is
well below the regulated pollutant levels for the pollutants described
above.
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