Southwest Water Company to Present at Water Investment Conferences

Southwest Water Company (NASDAQ:SWWC) today announced
that Anton C. Garnier, chairman and chief executive officer, and Peter
J. Moerbeek, president and chief operating officer, will present a
company overview at the Wall Street Transcript's Investing in the
Water Industry Conference on Tuesday, June 7, 2005, at 10:35 a.m. EDT
(7:35 a.m. PDT) at the Harvard Club in New York City. The company will
give the same presentation at the Wall Street Transcript's Investing
in the Utilities Industry Conference on Wednesday, June 8, 2005, at
11:00 a.m. EDT (8:00 a.m. PDT) at the conference facility of Nixon
Peabody LLP in Boston.
   Tuesday's presentation will be open to all interested parties
through a live Web cast on Southwest Water Company's Web site,
www.swwc.com. Listeners are encouraged to visit the Web site at least
15 minutes prior to the beginning of the presentation to register, and
to download and install any necessary software. The presentation will
be archived on the Web site for later viewing.
   Southwest Water Company provides a broad range of operations,
management and maintenance services, including water production,
treatment and distribution; wastewater collection and treatment;
utility billing and collection; customer service; and utility
infrastructure construction management. The company owns regulated
public utilities and also serves cities, utility districts and private
companies under contract. More than two million people from coast to
coast depend on Southwest Water for high-quality, reliable service.
Additional information may be found on the company's Web site:
www.swwc.com.