Allegheny County Sanitary Authority (ALCOSAN)

Allegheny County Sanitary Authority (ALCOSAN) Providing wastewater treatment for 83 municipalities including the City of Pittsburgh. Operating since 1959. Home of Frankie the Fish 🐠

Today, we honor Juneteenth and reflect on the ongoing pursuit of freedom, equality, and opportunity for all. Operations ...
06/19/2026

Today, we honor Juneteenth and reflect on the ongoing pursuit of freedom, equality, and opportunity for all.
Operations remain open to serve the region.

06/15/2026

Water you doing this weekend? 👀

Please join us for some FREE family-friendly summer science fun at Kamin Science Center ☀️💦

This year’s 3rd annual Summer Splash event is back again with cool prizes and activities for all to enjoy!

🗓️: Saturday, June 20th, 2026
📍: Kamin Science Center
⏰: 10:00a-5:00p

ALCOSAN Professional Services Committee MeetingThursday, June 11, 2026Virtual Only - 2:00 p.m.https://bit.ly/43cPuvq
06/11/2026

ALCOSAN Professional Services Committee Meeting
Thursday, June 11, 2026
Virtual Only - 2:00 p.m.
https://bit.ly/43cPuvq

05/29/2026

Tiny shells, big sign. 🦪

Freshwater mussels are showing up in Pittsburgh-area waterways, and that's exciting news.

Why? Because mussels are sensitive to pollution and can help indicate improving water quality. Their presence is one of many signs that our rivers are healthier today than they were decades ago.

Cleaner rivers don't happen overnight. They happen through years of investment, collaboration, science, stewardship, and people who care deeply about protecting our waterways.

Shoutout to our regional partners, researchers, environmental organizations, municipalities, and agencies working every day to improve water quality throughout our watershed.

This is a win worth celebrating. 🙌

Check comments for link to full article 👇

This Memorial Day, we honor and remember those who gave their lives in service to our nation. 🇺🇸Our administrative offic...
05/25/2026

This Memorial Day, we honor and remember those who gave their lives in service to our nation. 🇺🇸
Our administrative offices are closed today while essential operations continue.

Address

3300 Preble Avenue
Pittsburgh, PA
15233

Opening Hours

Monday 8am - 4:30pm
Tuesday 8am - 4:30pm
Wednesday 8am - 4:30pm
Thursday 8am - 4:30pm
Friday 8am - 4:30pm

Telephone

+14127664810

Website

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