SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 POST EFFECTIVE AMENDMENT NO. 9 FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 MIDDLESEX WATER COMPANY ----------------------- (Exact name of Registrant as specified in its charter) New Jersey 22-1114430 ---------- ---------- (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) 1500 Ronson Road, Iselin, New Jersey 08830 (Address of principal executive offices) 732-634-1500 (Registrant's telephone number, including area code) KENNETH J. QUINN Vice President, General Counsel, Secretary and Treasurer Middlesex Water Company 1500 Ronson Road Iselin, New Jersey 08830 732-634-1500 (Name, address, and telephone number of agent for service) Copy to: PETER D. HUTCHEON Norris, McLaughlin & Marcus 721 Route 202 & 206 North PO Box 1018 Somerville, NJ 08876-1018 The Post Effective Amendment filed herewith relates to Registration No. 33-11717 on Form S-3 filed by the registrant on December 12, 1991. The date of this Prospectus Supplement is April 26, 2005. Dear Shareholder: Re: Special 5% Discount Offer to DRIP Participants This letter supplements certain information contained in the Prospectus dated January 25, 2000, (the "Prospectus") covering the Company's Dividend Reinvestment and Common Stock Purchase Plan (the "Plan"). It refers especially to the reduced purchase price provision covered in the answer to Question 25 of the Prospectus. For a limited period of time, Middlesex Water Company is offering to sell shares of its Common Stock at a 5% discount to participants in the Plan. The offer applies to all purchases under the Plan made between June 1, 2005 and December 1, 2005, whether by Optional Cash Payment, Dividend Reinvestment or employee payroll deduction. To take advantage of this offer through Optional Cash Payments, the cash payment form attached to your statement of account, together with payment, must be received by the Agent (Registrar and Transfer Company, 10 Commerce Drive, Cranford, NJ 07016) at least ten days prior to the end of any month so that your funds will be invested on the first business day of the next month. Please refer to the answer to Question 18 of the Prospectus. The 5% reduction in price also will apply to dividends paid and reinvested on June 1, 2005 (to holders of record May 13, 2005). In addition, this discount will apply to any other dividends declared, paid and reinvested during the discount period. During this reduction period, the price of stock will be 95% of the purchase price as described in the answer to Question 24 of the Prospectus. If purchases are made at the reduced price and shares are then withdrawn from the Plan within six months after the purchase, you will be subject to a withdrawal fee equal to the original 5% purchase price reduction on all shares withdrawn. You should refer to the Prospectus for details and other terms of the Plan. If you have any questions about this proposal or need an additional copy of the Prospectus, please call Kenneth J. Quinn, Vice President, General Counsel, Secretary and Treasurer of the Company. If you do not wish to participate in this offer, except for the reinvestment of dividends, no action is required on your part. MIDDLESEX WATER COMPANY /s/Dennis G. Sullivan Dennis G. Sullivan President SIGNATURES Pursuant to the requirements of the Securities Act of 1933, the Registrant Certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Registration Statement or Amendment thereto, to be signed on its behalf by the undersigned, thereunto duly authorized, in the Township of Woodbridge, State of New Jersey on the 26th day of April, 2005. MIDDLESEX WATER COMPANY /s/A. Bruce O'Connor A. Bruce O'Connor Vice President and Chief Financial Officer Pursuant to the requirements of the Securities Act of 1933, this Registration Statement or Amendment has been signed below by the following persons in the capacities and on the date indicated. Title Signature Date ----- --------- ---- Chairman of the Board and /s/J. Richard Tompkins 04/26/05 Director ---------------------- J. Richard Tompkins President and Director /s/Dennis G. Sullivan 04/26/05 --------------------- Dennis G. Sullivan Vice President, /s/A. Bruce O'Connor 04/26/05 Chief Financial Officer and -------------------- Principal Accounting Officer A. Bruce O'Connor Director /s/Annette Catino 04/26/05 ----------------- Annette Catino Director /s/John C. Cutting 04/26/05 ------------------ John C. Cutting Director /s/John R. Middleton 04/26/05 -------------------- John R. Middleton Director /s/John P. Mulkerin 04/26/05 ------------------- John P. Mulkerin Director /s/Walter G. Reinhard 04/26/05 --------------------- Walter G. Reinhard Director /s/Jeffries Shein 04/26/05 ----------------- Jeffries Shein