X0202 4 2005-08-17 0 0000276209 CONNECTICUT WATER SERVICE INC / CT CTWS 0001217197 BANCROFT PETER J C/O CONNECTICUT WATER SERVICE, INC. 93 WEST MAIN STREET CLINTON CT 06413 0 1 0 0 Ass't Treasurer & Controller Common Stock Option Exercise 2005-08-17 2005-08-17 4 S 0 1700 25.00 D 29738 D Common Stock Exercise & Sale 14.833 2005-08-17 2005-08-17 4 M 0 1700 14.833 A 2000-04-23 2009-04-23 Option 1700 29942 D Common Stock Exercise & Sale 14.833 2005-08-17 2005-08-17 4 S 0 504 25.00 D 2000-04-23 2009-04-23 Option 504 29438 D Common Stock Exercise & Sale 14.833 2005-08-17 2005-08-17 4 S 0 99 25.02 D 2000-04-23 2009-04-23 Option 99 29339 D Common Stock Exercise & Sale 14.833 2005-08-17 2005-08-17 4 S 0 100 25.09 D 2000-04-23 2009-04-23 Option 100 29239 D Common Stock Exercise & Sale 14.833 2005-08-17 2005-08-17 4 S 0 100 25.11 D 2000-04-23 2009-04-23 Option 100 29139 D Common Stock Exercise & Sale 14.833 2005-08-17 2005-08-17 4 S 0 100 25.12 D 2000-04-23 2009-04-23 Option 100 29039 D Common Stock Exercise & Sale 14.833 2005-08-17 2005-08-17 4 S 0 99 25.13 D 2000-04-23 2009-04-23 Option 99 28940 D Common Stock Exercise & Sale 14.833 2005-08-17 2005-08-17 4 S 0 99 25.14 D 2000-04-23 2009-04-23 Option 99 28841 D Common Stock Exercise & Sale 14.833 2005-08-17 2005-08-17 4 S 0 99 25.15 D 2000-04-23 2009-04-23 Option 99 28742 D Common Stock Exercise & Sale 14.833 2005-08-17 2005-08-17 4 S 0 500 25.21 D 2000-04-23 2009-04-23 Option 500 28242 D This report covers the final sales of 3,000 stock options, excercised 8/15/2005. 1,000 were sold on 8/15/2005 and reported on Form 4, dated 8/17/2005, amended 8/19/2005; 300 were sold on 8/16/2005 and reported on Form 4, dated 8/18/2005. This form covers the sale of 1,700 shares. /s/Michele G. DiAcri, POA for Peter J. Bancroft 2005-08-19