General NSU InformationNSU Phone Number: (908) 359-5501 NSU Fax Number: (908) 359-8286 info@nsuwater.com
HeadquartersNatural Systems Utilities – Eastern Region Headquarters NSU Address: 170 Township Line Road, Building C Hillsborough, NJ 08844 NSU Phone Number: (908) 359-5501 NSU Fax Contact Number: (908) 359-8286
WESTERN REGIONNatural Systems Utilities – CA 1070 Horizon Drive – Suite A Fairfield, CA 94534 NSU Phone Number: (707) 254-1931 NU Fax Number: (707) 254-9162
Central RegionNSU Address: 17818 Hwy 65 NE, Suite 100 Ham Lake, MN 55304 NSU Phone Number: (763) 434-5660 NSU Fax Number: (763) 434-5664
Cape Cod & the IslandsNSU Address: 1573 Main Street Brewster, MA 02631 NSU Phone Number: (508) 896-1706 NSU Fax Number: (508) 896-5109
New EnglandNSU Address: 21 Father DeValles Blvd, Suite 107 Fall River, MA 02723 NSU Phone Number: (508) 675-5755 NSU Fax Contact Number: (508) 675-5599