[FULBRIGHT & JAWORSKI L.L.P. LETTERHEAD]

February 5, 1999

Dominguez Services Corporation
21718 South Alameda Street
Long Beach, California 90810-0351

Ladies and Gentlemen:

     We have acted as counsel for Dominguez Services Corporation, a California
corporation (the "Company"), in connection with its filing with the Securities
and Exchange Commission on or about February 5, 1999 of a Registration Statement
on Form S-8 (the "Registration Statement") with respect to the registration
under the Securities Act of 1933, as amended,  of 75,000 shares of the Company's
common stock, $1.00 par value per share (collectively, the "Shares"), to be
offered upon the terms and subject to the conditions set forth in the Company's
1997 Stock Incentive Plan (the "Plan").

     We have examined (i) the Articles of Incorporation and Bylaws of the
Company, each as amended to date, (ii) the Plan, (iii) the Registration
Statement, and (iv) such certificates, statutes and other instruments and
documents as we considered appropriate for purposes of the opinion hereafter
expressed.

     In connection with this opinion, we have assumed the authenticity and
completeness of all records, certificates and other instruments submitted to us
as originals, the conformity to original documents of all records, certificates
and other instruments submitted to us as copies, and the correctness of all
statements of fact contained in all records, certificates and other instruments
that we have examined.

     Based upon and subject to the foregoing, we are of the opinion that the
Shares have been duly authorized and, when issued in accordance with the terms
of the Plan, will be validly issued, fully paid and nonassessable.

     We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement.

                              Very truly yours,


                                   /s/
                              Fulbright & Jaworski L.L.P.