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Sewer Overflow Advisory Key (SOAK)

THE SOAK Alert System is now inactive.  Alerts are active from May 1 to October 31.

Effective Date/Time: October 27, 2019 - 1:29 p.m.
Overflows have ceased; 
Waterways may still be impaired.

During wet weather, conditions can change on area rivers, streams and creeks, making them less suitable for many recreational activities.*  In addition to the hazards of fast-moving water and debris washed from land, sewers can overflow where they connect to the ALCOSAN collection system.  These overflows can be a source of bacteria that may be harmful if swallowed or exposed to an open wound.  This Sewer Overflow Advisory Key (SOAK) alerts the public when overflows in the ALCOSAN collection system are impacting area waterways during ALCOSAN’s NPDES permit summer reporting period, May 1 to October 31.  To view all status changes for the current season, click here.

*Due to the possibility of high flows, floating debris washed from land and poor visibility during wet weather conditions, extreme caution should be used in all activities.

Sewer Overflow Advisory key: Wet Weather overflows have ceased. Rivers, streams and creeks may still be impaired. For more information:

Customer Care at ALCOSAN, we believe it's our duty and privilege to protect, recover and reuse our most valuable resources for the benefit of our customers.

Consent Decree: To comply with provisions set forth in the Clean Water Act, ALCOSAN must meet a series of requirements for planning, design and construction, operation and permitting. For more information

Watershed Education: Leave small leftovers of paint and solvents to dry rather than pouring them down the drain. Learn more

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