X0202 4/A 2007-06-13 2007-06-29 0000811271 WORLDWATER & POWER CORP WWAT 0001403463 Quercus Trust 2309 SANTIAGO DR. NEWPORT BEACH CA 92660 0 0 1 0 Common Stock 2007-06-13 4 P 0 100000 1.08 A 16782500 D Common Stock 2007-06-14 4 P 0 320000 1.14 A 17102500 D Common Stock 2007-06-15 4 P 0 580000 1.13 A 17682500 D Common Stock 2007-06-18 4 P 0 250000 1.14 A 17932500 D Common Stock 2007-06-28 4 P 0 400000 1.41 A 18332500 D Amendment filed to correct price paid per share for 400,000 shares purchased 06/28/07. /s/ David Gelbaum, Co-Trustee, The Quercus Trust 2007-07-05