Backflow Testing, Certification & Repair in Monmouth County, NJ — All 53 Municipalities
South Jersey Backflow serves all 53 Monmouth County municipalities with certified annual backflow preventer testing, repair, and enclosure installation. Monmouth County spans from the Raritan Bay waterfront communities of Keansburg, Keyport, and Aberdeen to the exclusive Rumson peninsula, from the historic and culturally vibrant shore communities of Asbury Park and Long Branch to the affluent equestrian communities of Colts Neck and Holmdel, from the suburban employment corridors of Freehold and Manalapan to the Jersey Shore beach towns of Spring Lake, Sea Girt, and Brielle. The primary water authority for Monmouth County is NJ American Water’s Coastal North system. Call (856) 291-6809 or contact South Jersey Backflow to schedule service anywhere in Monmouth County.
Water Authorities Serving Monmouth County — Who We File With
NJ American Water (Coastal North System)
NJ American Water’s Coastal North system is the dominant water authority for Monmouth County, serving the vast majority of the county’s 53 municipalities from the Manasquan Reservoir system, the Raritan-Millstone WTP, and groundwater sources throughout the county. Annual test reports must be submitted to NJAW.CrossConnection@amwater.com or 848-232-8309. South Jersey Backflow has maintained current NJ American Water Coastal North filing protocols since 2004.
Freehold Township Water & Sewer (est.
Freehold Township Water and Sewer — established in 1798, making it one of the oldest water utilities in New Jersey — operates its own system with 10 production wells and approximately 29,831 customers, also serving portions of Colts Neck. Annual test reports for Freehold Township customers are submitted to Freehold Township Water & Sewer.
NJ Water Supply Authority (Manasquan System)
The NJ Water Supply Authority’s Manasquan system provides approximately 60% of water supply for Brielle, Sea Girt, Spring Lake, Spring Lake Heights, and Wall Township through the NJ American Water distribution network. The NJWSA manages the Manasquan Reservoir and delivers finished water wholesale.
Individual Municipal Systems
Freehold Borough, Manalapan Township, Marlboro Township, and Howell Township each operate their own water systems. South Jersey Backflow files directly with each.
Our Backflow Services Throughout Monmouth County
Annual testing and certification: backflow testing and certification with direct NJ American Water and all Monmouth County water authority filing
Repair and rebuild: backflow repair and rebuild for all 53 Monmouth County municipalities
Shore and seasonal properties: winterize your backflow preventer — spring startup and winter preparation guidance
Restaurant and hospitality: restaurant backflow requirements — including Asbury Park’s acclaimed dining scene and the Spring Lake shore hotel corridor
Equestrian and agricultural: Chemical injection irrigation RPZ assembly requirements compliance for Colts Neck and Holmdel equestrian properties
Fire suppression: fire suppression backflow requirements for Monmouth County’s extensive commercial and hotel portfolio
All 53 Monmouth County Municipalities
Schedule Your Monmouth County Backflow Service
Call (856) 291-6809 or contact South Jersey Backflow. Serving all 53 Monmouth County municipalities since 2004. Direct filing with NJ American Water Coastal North, Freehold Township Water & Sewer, Freehold Borough, and all Monmouth County water authorities.