Wednesday, September 26, 2018

M5.7: Your Sewage Facilities


Where are the sewage treatment facilities in your community? 

The San Francisco Utilities Commission (SFPUC) owns and operates San Francisco’s combined sewer system, which collects and treats both sewage and stormwater runoff. There are 3 sewer system treatment facilities in San Francisco. The first facility, North Point Wet-Weather Facility (NPF), was built in 1951 and is located at Bay Street and Embarcadero. This facility treats wastewater only during wet weather and has a capacity of 150 million gallons per day (MGD) during rainstorms. The second facility, Southeast Treatment Plant (SEP), was built in 1952 and is located on Phelps Street near Third and Evans streets in the Bayview District. This is the largest all-weather facility treating 80% of the City’s flows and treats on average 60 MGD of wastewater and up to 250 MGD during rain storms. The third facility is Oceanside Treatment Plant, which was built in 1993 and is located is located off the Great Highway between Lake Merced and the San Francisco Zoo. This facility treats 20% of the City’s flows and on average treats 15 MGD of wastewater and up to 175 MGD during rainstorms.

San Francisco recognizes that we are dealing with aging infrastructure and that there are portions of our combined sewer systems that are over 100 years old. The Sewer System Improvement Program (SSIP) is a 20-year citywide investment to upgrade our aging sewer infrastructure to ensure reliable, sustainable and seismically safe sewer system now and for generations to come.



3 comments:

  1. Hi Marisa,

    I live in Menlo Park, which does not have it's own sewage treatment facility. However, I did a google search to investigate whether there would be plans to build one -- there's definitely been some talk about it, but no news about actual building plants yet.

    Carmen

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  2. Hi Marisa,
    I live in Half Moon Bay and we have a small treatment plant. It does provide water to towns from south of Pacifica to Half Moon Bay, but is not as big as the San Francisco one. Thank you for sharing what you found out about your treatment plant. I am glad that SF recognizes the aging infrastructure and that a plan has been put in place to address this issue.
    Great post!
    Kera

    ReplyDelete
  3. Hello Marisa,

    I find it very surprising to see how many sewage facilities are in San Francisco. It also brings up questions as to whether SF has been able to keep up with the waste run-off with their current facilities. I can only imagine that the upgrades will become bigger to accommodate the increase of waste produced by a growing population.

    ReplyDelete

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