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

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                                    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): August 9, 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)

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

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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 August 9, 2005, Southwest Water Company issued a press release announcing its
financial results for the three months ended June 30, 2005. 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 not be deemed "filed"
for the purposes of Section 18 of the Securities Exchange Act of 1934, as
amended, or otherwise subject to the liability of that section, nor shall it be
deemed incorporated by reference in any filing under the Securities Act of 1933,
as amended, except as shall be expressly set forth by specific reference in such
a filing.


Item 9.01 Financial Statements and Exhibits

(c)      Exhibits


Exhibit                         Description
  No.
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99.1            Press release dated August 9, 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/ Cheryl L. Clary
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                                              Name: Cheryl L. Clary
                                              Title: Chief Financial Officer


Date: August 9, 2005



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                                  Exhibit Index



Exhibit                         Description
  No.
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99.1            Press release dated August 9, 2005





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