Every year, visitors flock to the plant to take part in hands-on activities, tours, and exhibits that showcase the amazing work of ALCOSAN and its wastewater treatment processes.

Whether you're a curious student, a science enthusiast, or just someone who loves learning new things, ALCOSAN's open house is the perfect opportunity to explore and discover. You'll have the chance to get up close and personal with the cutting-edge technology that powers ALCOSAN's work, and learn about the important role the plant plays in keeping our waterways clean and healthy.

But it's not just about education - ALCOSAN's open house is also a ton of fun! With a wide variety of activities and exhibits to explore, you're sure to find something that piques your interest. From hands-on experiments to interactive displays, there's plenty of opportunities to engage with the science behind wastewater treatment in a way that's both entertaining and informative.

So if you're looking for a day full of exploration, discovery, and fun, make sure to mark your calendar for ALCOSAN's annual open house - it's an event you won't want to miss!

Open House 2024

ALCOSAN's Open House 2024, September 14, 2024

Open House 2023


Thank you all for making yet another Open House a resounding success! We hope you gained valuable insights into our Clean Water Plan and thoroughly enjoyed the Plant Tours. Your enthusiasm and participation mean the world to us.

Open House 2022

Thank you to everyone for another successful and fun filled Open House. We hope that you learned about our Clean Water Plan and enjoyed the Plant Tours.


Virtual Open House 2021

Thanks for attending our virtual Open House. We hope you enjoyed the videos, and perhaps learned a little about the important work ALCOSAN is doing.  If you didn’t attend our Open House, or want to go back and view something again, we’ve kept the page available.

Open House 2021


Virtual Open House 2020

View some of our past videos and educational materials from ALCOSAN's first all Virtual Open House.

Open House 2020

See the Fun from 2019

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Annual Open House

Learn more about our free annual open house event.

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