Norristown Municipal Waste Authority



235 E. Airy Street, 2nd Flr
Norristown, PA 19401
Phone: 610-270-3190

Fax: 610-270-3192


Office hours (M/F):
8:00 A.M. to 4:00 P.M.

After Hours Emergency Number




In the case of a sewer emergency on your property...
Discontinue inside water use.  Contact the Authority at 610-270-3190 during normal business hours.  The operator will take your information and dispatch an Authority employee.  In the evening or the weekends, dial 484-220-1003.  Please provide your name, the property address, a return phone number and as much information as possible concerning the blockage.  An Authority employee will check the sewer main for blockage.  If the blockage is in the sewer main, the Authority employee will remove the blockage.  If the Authority employee determines that the sewer main is functioning properly, you will be informed and you should then contact a licensed plumber to remove the blockage from your house lateral or your internal plumbing.  The Authority is responsible for maintaining the sewer mains in the street only.  The property owner is responsible for the maintenance of the house lateral and internal plumbing.  The Authority will not remove a blockage from the house lateral.

How can I prevent a sewer backup?

DO NOT pour grease of any kind down sinks, garbage disposals, or other drains. Grease builds up inside the pipe and eventually blocks the sewer. Grease is the major contributor of a sewer blockage. DO NOT flush diapers, sanitary napkins, newspapers, soiled rags, or paper towels down the toilet. DO NOT put used oil, paint, solvents, or other chemicals down sewer lines. DO NOT plant trees with shallow, spreading root systems near your sewer lateral. Tree roots seek water sources and will penetrate any cracks in the sewers. The roots can create a dense mat and trap materials.