ALCOSAN: Addressing the Environmental Health of Our Region

Water. It’s our most precious natural resource. At ALCOSAN we believe our mission and our purpose is clear. That’s why we’re working hard everyday to provide you, our customer, with cost-effective, environmentally conscious wastewater treatment that protects the public’s health while enhancing usage of our natural resources.


ALCOSAN is now on Facebook!  To receive news and updates via your registered Facebook account, please click on the logo and choose "like" on the ALCOSAN landing page.


NEW:  Visit Allegheny Forum, an initiative of the Pittsburgh Foundation to promote public discussion about municipal services among Allegheny County's 130 municipalities.  To go directly to a moderated discussion about water and sewer issues, click here

Upcoming Events

 ALCOSAN Open House - Saturday, September 18, 2010
ALCOSAN's annual Open House is the region's largest watershed and environmental festival, featuring treatment plant and laboratory tours, watershed life presentations, hands-on environmental activities, games, food and fun!   The event is free and open to the public.  
Click here for further details.

view all events

In The News

Alcosan Announces 2010 Rate Structure

The Allegheny County Sanitary Authority (ALCOSAN) announces its 2010 sewage rate structure which includes an increase to fund federally mandated projects and daily operating costs.

City, County Controllers Release Audit of ALCOSAN

A joint fiscal and performance audit of ALCOSAN has been released by the County and City Controller Offices.   Reports from the respective agencies may be viewed using the following links:
          Allegheny County Controller's Office
          City of Pittsburgh Controller's Office

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3300 Preble Avenue
Pittsburgh, PA 15233
(412) 766-4810