Middlesex Water Company Receives Approval to Implement Purchased Water Adjustment Clause

Market Wire, June, 2009

Middlesex Water Company (NASDAQ: MSEX) has received approval to implement a Purchased Water Adjustment Clause (PWAC), effective July 1, 2009. The PWAC is a pass-through charge, which enables the company to recover the increased unit cost of raw or finished water purchased from external sources.

Middlesex Water filed an application with the New Jersey Board of Public Utilities (BPU) on January 12, 2009, seeking permission to establish a PWAC and implement a tariff rate sufficient to recover increased costs of $0.9 million to purchase untreated water from the New Jersey Water Supply Authority and treated water from a non-affiliated regulated water utility. The Company supplements its groundwater supplies with purchased surface water. Middlesex Water will bill general water service customers a PWAC rate of $0.6675 per thousand cubic feet of metered water to recover the increased purchased water costs.

About Middlesex Water Company

Middlesex Water Company, organized in 1897, provides regulated and unregulated water and wastewater utility services in New Jersey and Delaware through various subsidiary companies. For additional information regarding Middlesex Water Company, visit the Company's web site at www.middlesexwater.com or call (732) 634-1500.

Contact: Bernadette Sohler Vice President - Corporate Affairs Middlesex Water Company (732) 638-7549 bsohler@middlesexwater.com