• Email
  • Print

Waste Water Collection

The mission of the Pacifica Sanitary Sewer Collection System Division is to prolong the life of the collection system infrastructure and transport waste to point of treatment without disruption or overflows, while meeting the needs of citizens in the service area and all federal, state and local regulations in a cost-efficient manner.

The City of Pacifica employs ten technicians to maintain and operate the collection system. Some of their responsibilities include cleaning and repairing wastewater mains and laterals, televising and recording the condition of the sanitary sewer, performing maintenance on pumps and motors at the lift stations, inspecting private plumbing construction and providing information to the public. These individuals have the responsibility of preventing damage to the community's environment from pollution caused by sanitary sewer overflows.

If you have questions regarding replacement of your sewer lateral or if you are in need of an inspection, please contact Doug Trade by email or by calling (650) 738-7472.

Wet Weather Equalization Basin (EQ Basin)

The City of Pacifica intends to construct and utilize the proposed wet weather flow equalization basin (“EQ basin”) and associated pipelines (together referred to as “the Project”) as a key element to mitigate storm-related sanitary sewer overflows (SSOs) in the City’s wastewater collection system and reduce peak wet weather flows to the City’s Calera Creek Water Recycling Plant. The City is subject to infiltration and inflow of extraneous groundwater and stormwater into the sanitary sewer collection system, resulting in high wet weather flows during storm events. As a result, SSOs have occurred at several locations in the system during large storms.

The Project would include construction of the following components:
    • Installation of a 2.1-million-gallon capacity EQ basin;
    • Two diversion structures to passively divert excess flows and transport the flow via a
       conveyance pipeline to the EQ basin during storm events;
    • An effluent conveyance pipeline routing flows to the existing Crespi Drive sanitary sewer line
       and Linda Mar Blvd. pump station,
    • A 10-foot tall motor control center building equipped with a 4-foot-high metal antenna;
    • A ventilation and odor-control system; and
    • A potable-water-supplied cleaning system within the EQ basin.

In accordance with the California Environmental Quality Act (CEQA), the City of Pacifica prepared and released a Draft Mitigated Negative Declaration/Initial Study (MND/IS) for public review. Please use this link to the PDF to view the Notice to Adopt a Mitigated Negative Declaration and the Draft MND/IS. Hardcopies of the document can be reviewed at the following locations:

Planning Department -
 1800 Francisco Blvd., Pacifica, CA 94044
Sanchez Library -
 1111 Terra Nova Blvd., Pacifica, CA 94044
Sharp Park Library -
 104 Hilton Way, Pacifica, CA 94044

The City will accept comments on the Draft MND/IS during the public review period starting December 8, 2016 and ending January 13, 2017. Please submit your comments using one of the following methods:

Mail: Bonny O’Connor
City of Pacifica Planning Department
1800 Francisco Blvd.
Pacifica, CA 94044

Fax: (650) 359-5807
Email: o’connorb@ci.pacifica.ca.us

A project update on the EQ Basin Project was presented at the City of Pacifica Council Meeting on December 12, 2016.  Please see the presentation to City Council on the EQ Basin Project from that meeting.

A Public Meeting to address public questions regarding the project and the MND/IS was held on December 15, 2016 from 6:30 pm - 8:00 pm at the Pacifica Community Center, 540 Crespi Drive, Pacifica.  Please see the presentation at the public meeting on the EQ Basin Project.

See the Fact Sheet for more information about the EQ Basin Project

Wet Weather Equalization Basin Site Feasibility Evaluation - Final
Addendum to Wet Weather Equalization Basin Site Feasibility Evaluation