Exhibit 32.2

Certification of Chief Financial Officer
Pursuant to 18 Section 906 of the Sarbanes-Oxley Act Of 2002
(18 U.S.C. § 1350)

In connection with the annual report of SouthWest Water Company (the “Company”) on Form 10-K for the period ended December 31, 2007 (the “Report”), I, Cheryl L. Clary, Chief Financial Officer of the Company, certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. §1350), that:

1.to my knowledge, the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: March 31, 2008	/s/ CHERYL L. CLARY
	Cheryl L. Clary
	Chief Financial Officer