
PUBLIC NOTICE MEETING
Date: April 14, 2025
Time: 6pm
Location: Seneca High School Auditorium
Hosted By: Northwestern Supply, Inc.


Have you been impacted by the recent survey by the City of Seneca, and need help understanding what they are doing. Join our public education session, where you will learn what backflow is and how to protect yourself. Click Here to register for the FREE event.


University of Florida TREEO Center
South Carolina Host Site
Palmetto Alliance is a new Host Site for the University of Florida TREEO Center, and will be bringing Tester Certification, and recertification courses to South Carolina. Are you testing in multiple states? South Carolina will now reciprocate with our UF TREEO Class certification. Do you have a SC DHEC Certification and want a TREEO Certification? We offer a crossover class where if you have a SC DHEC certification, you can attend this class and receive a TREEO Certification. Email us for more information.
Backflow Tester Certification Classes
- Sold Out - Class FullTue, Apr 08Gignilliat Community Center
- Mon, May 19Manchester Meadows
- Sold Out - Class FullTue, Jun 10North Charleston Area Convention Center
- Sold Out - Class FullTue, Jul 08Hilton Garden Inn Harbison
- Tue, Aug 05Gignilliat Community Center
- Tue, Sep 09SC Civil Air Patrol
- Tue, Oct 07Hilton Garden Inn Harbison
- Tue, Nov 18North Charleston Area Convention Center
- Tue, Dec 16Hilton Garden Inn Harbison
Backflow Troubleshooting & Repair Class
- Wed, Jul 23Gignilliat Community CenterThis repair class is like no others. Get hands on training with both small and larger diameter backflow assemblies.
Backflow Recertification
Students Success Stories
The class was great, lots of hands on things to make you feel comfortable with the process, gages and preventer types.
The material was straight forward and easy to comprehend if you put in the time.
Getting the license processed on the spot was a fantastic plus. I was in the Greenville system by the end of the day I completed the class.
B. Williams
Instructors were very knowledgeable and friendly. They really tried to make information fun and informative at the same time. This was a fun class. I look forward to participating in a maintenance and troubleshooting class soon.
M. Hughes
It was engaging throughout and the information was presented in an easy to follow and retainable manner.