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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D. C. 20549

                                ----------------

                                    FORM 8-K
                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

        Date of report (Date of earliest event reported): March 15, 2005

                             SOUTHWEST WATER COMPANY
             (Exact Name of Registrant as Specified in Its Charter)


      Delaware                        0-8176                     95-1840947
(State of Incorporation)      (Commission File Number)        (I.R.S. Employer
                                                             Identification No.)


One Wilshire Building
624 South Grand Avenue, Suite 2900
Los Angeles, CA                                             90017-3782
(Address of principal executive offices)                    (Zip Code)


                                 (213) 929-1800
              (Registrant's telephone number, including area code)

                                ----------------

              (Former name, former address and former fiscal year,
                       if changed since last report date)

                                ----------------

Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions:

[ ] Written communications pursuant to Rule 425 under the Securities Act
    (17 CFR 230.425)

[ ] Soliciting material pursuant to Rule 425 under the Securities Act
    (17 CFR 240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
    Exchange Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
    Exchange Act (17 CFR 240.13e-4(c))

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Item 2.02  Results of Operations and Financial Condition

On March 15, 2005, Southwest Water Company issued a press release announcing its
financial results for the year ended December 31, 2004. A copy of the press
release is being furnished as Exhibit 99.1 to this Current Report on Form 8-K.

In accordance with General Instruction B.2 of Form 8-K, the information in this
Current Report on Form 8-K, including Exhibit 99.1, shall be deemed "filed" for
the purposes of its incorporation by reference into the Company's effective
registration statements.

Item 9.01  Financial Statements and Exhibits

(c)     Exhibits


Exhibit
  No.                           Description
-------   ------------------------------------------------------
99.1      Press release dated March 15, 2005




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                                    SIGNATURE

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.


                                        SOUTHWEST WATER COMPANY (Registrant)

                                        By:/s/Richard J Shields
                                           --------------------
                                           Name: Richard J. Shields
                                           Title: Chief Financial Officer

Date: March 15, 2005



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                                  Exhibit Index

Exhibit
  No.                    Description

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99.1            Press release dated March 15, 2005