White Marsh Environmental Systems, Inc. (WMES), a Tidewater Utilities subsidiary, operates water and wastewater systems under contract for approximately 7,200 residential customers. WMES also operates systems associated with manufactured home communities, housing subdivisions, stores and government buildings. WMES utilizes professional, certified water and wastewater operators who operate and maintain these systems to ensure quality and efficiency.

Available Services

• Water and Wastewater Contract Operations
• System Purchases
• System Design and Build Options
• Collection System Diagnosis
• Distribution System Leak Detection
• Waste Hauling
• Instrumentation Specification and Upgrades
• 24 Hour On-call Emergency Response
• Well Drilling
• Storm Water Management
• Consultation Services

To learn more about our professional services, please call (800) 523-7224

Customer Service Contact Information:

In the event of an emergency, please call:
(877) 720-9272 (9 a.m.-5 p.m.) or
(800) 523-7224 after 5 p.m.

For billing inquiries:
(877) 720-9272 (9 a.m.-5 p.m.)
or (800) 523-7224 after 5 p.m.

Hours of Operation: Monday through Friday 8:30 a.m. – 5 p.m.

Business Address

White Marsh Environmental Systems, Inc.
1100 South Little Creek Road
Dover, DE 19901

Customer Service Correspondence

Middlesex Water Company
1500 Ronson Road
Iselin, NJ 08830
Attn: White Marsh Environmental Systems

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