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Paying for wastewater treatment

ALCOSAN’s ratepayers are charged for wastewater services based on the amount of water used in a quarterly billing period. Your water company provides this figure to ALCOSAN, which uses it to determine your cost. ALCOSAN follows the rates below, set by the ALCOSAN Board of Directors:

  • A usage charge of $7.94 per 1,000 gallons of water used 
  • A quarterly service charge of $16.69

The average customer, who uses 12,000 gallons of water per quarter, will pay $111.97 for a three-month service period in 2019.

Because your sewage treatment charge is based on water usage, the bill may vary each quarter. Factors that will affect your water and wastewater treatment charges include seasonal conditions, the number of occupants in the home and conservation efforts.

Who sends me a bill?
Most ratepayers do not receive a bill directly from ALCOSAN. That only occurs in three communities – Aspinwall, Ben Avon and Thornburg. In the other 80 municipalities that ALCOSAN serves, your municipality includes the ALCOSAN charges in a bill sent to you. In some cases, that bill includes municipal surcharges that typically are used by the municipality to maintain its sewer lines, which carry wastewater from your home to the ALCOSAN system. ALCOSAN does not set, collect or monitor municipal surcharges and does not have the ability to shut off water service for non-payment of wastewater charges.

Ratepayers who reside in Aspinwall, Ben Avon and Thornburg are billed directly by ALCOSAN. They may pay their bills by mail or in person Monday through Friday, 9 a.m. to 4 p.m. at the ALCOSAN Customer Service and Billing Department at 3101 Preble Avenue, Pittsburgh, PA 15233. Sewage bills issued directly by ALCOSAN are subject to a 5 percent late fee after the due date and are turned over to your municipality for collection after 60 days.

What is the difference between water companies and ALCOSAN?
Your water company and ALCOSAN are separate organizations, each with distinct functions and responsibilities. ALCOSAN is responsible for the collection, treatment and billing of wastewater – whatever goes down your household drains or toilets. Water companies are responsible for the treatment, delivery and billing of drinking water. For most residents of Pittsburgh, the water company is the Pittsburgh Water and Sewer Authority, which produces and supplies the water and maintains the City of Pittsburgh sewer system.

Commercial / Industrial Accounts
Commercial/industrial customers that discharge wastes with high concentrations of suspended solids, biochemical oxygen demand and/or chlorine demand are subject to High Strength Discharge surcharges.  For more information about ALCOSAN’s Industrial Waste program and associated monitoring and surcharges, contact Freddie Fields, Manager of Industrial Waste at 412-734-8724 or

If you have a question about a wastewater bill issued by your municipality, please contact the billing department for that municipality.    If you receive your bill directly from ALCOSAN, please direct your questions, as well as name and/or address changes, to ALCOSAN’s Customer Service and Billing representatives at 412-766-6696.  Please have your account number on hand.

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