Middlesex Water


Utility Service Affiliates (Perth Amboy), Inc.

USA-PA operates the City of Perth Amboy, NJ's water and wastewater systems under a 20-year agreement.  USA-PA serves approximately 20,000 customers, most of whom are served by both the water and wastewater systems.

Customer Service Contact Information:

In the event of an emergency, please call:
(732) 826-5335 (9 a.m.-5 p.m.)
or (732) 721-3664 after 5 p.m.

For billing inquiries:
(732) 826-0290 (9 a.m.-5 p.m.)

Hours of Operation: Monday through Friday 9:00 a.m. – 5 p.m.


Utility Service Affiliates (Perth Amboy) Inc.
P. O. Box 167
Iselin, NJ 08830


Water Quality

Utility Service Affiliates (Perth Amboy) Inc. has a stringent water quality monitoring and testing program to ensure drinking water that meets and is better than state and federal water quality standards. The Company provides information on its water quality results to customers through Annual Water Quality Reports to customers.