Loading Events

« All Events

  • This event has passed.

Field trip to Oro Lomo Wastewater Treatment Plant,  2600 Grant Ave., San Lorenzo @12-2 pm

March 1, 2023 @ 12:00 pm - 2:00 pm

Concerned about the toxic algal bloom that killed thousands of fish in the SF Bay this past August? Treated wastewater released into the Bay could be a major cause.  Join fellow Bay Area GCA members to learn how one wastewater treatment plant’s innovation reduces the risk of toxic algal blooms while also protecting the shoreline environment.


Oro Loma’s award-winning treatment plant removes close to 95% of the ammonia from the influent flow, far exceeding the 70% removal rate requirement. The reduction of nitrogen to the Bay can reduce the potential for algal blooms, which can lead to fish kills. The horizontal levee, a nature-based treatment system, further improves water quality, provides beneficial habitat, and protects coastal levees from the effects of sea level rise.


Come mingle with other GCA members and see for yourself how it all works!


12:00 BYO Bag Lunch onsite with other Bay Area GCA members

11:00 – 12:00 Tour: 20 spots total for Carmel-By-The-Sea, Marin and Hillsborough

1:00 – 2:00 pm Tour: 20 spots total for Woodside-Atherton, Orinda and Piedmont Garden Clubs 


March 1, 2023
12:00 pm - 2:00 pm