X0202 4 2005-09-20 0 0000092472 SOUTHWEST WATER CO SWWC 0001063320 HUENNEKENS DONOVAN D HQT HOMES 13821 NEWPORT AVENUE, SUITE 120 TUSTIN CA 92780 1 0 0 0 Common Stock 2005-09-20 4 P 0 77 12.877 A 81107 D Includes 77 shares acquiredon September 20, 2005 under the SWWC Direct Stock Purchase Plan. Mr. & Mrs. Huennekens hold all 81,107 shares of common stock as co-trustees of a revocable trust for their benefit. /s/ Donovan D. Huennekens 2005-09-21