SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
MARSTON THOMAS R
(Last) (First) (Middle)
C/O CONNECTICUT WATER SERVICE, INC.
93 WEST MAIN STREET
(Street)
CLINTON CT 06413
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
CONNECTICUT WATER SERVICE INC / CT [ CTWS ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
VP, Planning and Treatment
3. Date of Earliest Transaction (Month/Day/Year)
04/17/2006
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 04/17/2006 04/17/2006 S 2,900 D $26 19,206 D
Common Stock 04/17/2006 04/17/2006 S 100 D $26.01 18,206 D
Common Stock 04/17/2006 04/17/2006 S 329 D $26.15 17,877 D
Common Stock 04/17/2006 04/17/2006 S 71 D $26.16 17,806 D
Common Stock 04/17/2006 04/17/2006 S 200 D $26.18 17,606 D
Common Stock 04/17/2006 04/17/2006 S 900 D $26.23 16,706 D
Common Stock 04/17/2006 04/17/2006 S 903 D $26.25 15,803 D
Common Stock 04/17/2006 04/17/2006 S 97 D $26.27 15,706 D
Common Stock 04/17/2006 04/17/2006 S 1,365 D $26.28 14,341 D
Common Stock 04/17/2006 04/17/2006 S 97 D $26.36 14,244 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option Exercise $14.8333 04/17/2006 04/17/2006 M 2,082 04/23/2000 04/23/2009 Common 2,082 $14.8333 11,722 D
Stock Option Exercise $22.3333 04/17/2006 04/17/2006 M 2,858 12/08/2000 12/08/2009 Common 2,858 $22.3333 14,580 D
Stock Option Exercise $20.4167 04/17/2006 04/17/2006 M 2,022 12/06/2001 12/06/2010 Common 2,022 $20.4167 16,602 D
Option Exercise & Sale $14.8333 04/17/2006 04/17/2006 S 2,082 04/23/2000 04/23/2009 Common 2,082 $26 14,520 D
Exercise & Sale $22.3333 04/17/2006 04/17/2006 S 818 12/08/2000 12/08/2009 Common 818 $26 13,702 D
Exercise & Sale $22.3333 04/17/2006 04/17/2006 S 100 12/08/2000 12/08/2009 Common 100 $26.01 13,602 D
Exercise & Sale $22.3333 04/17/2006 04/17/2006 S 1,365 12/08/2000 12/08/2009 Common 1,365 $26.28 12,237 D
Exercise & Sale $22.3333 04/17/2006 04/17/2006 S 575 12/08/2000 12/08/2009 Common 575 $26.23 11,662 D
Exercise & Sale $20.4167 04/17/2006 04/17/2006 S 329 12/06/2001 12/06/2010 Common 329 $26.15 11,333 D
Exercise & Sale $20.4167 04/17/2006 04/17/2006 S 71 12/06/2001 12/06/2010 Common 71 $26.16 11,262 D
Exercise & Sale $20.4167 04/17/2006 04/17/2006 S 200 12/06/2001 12/06/2010 Common 200 $26.18 11,062 D
Exercise & Sale $20.4167 04/17/2006 04/17/2006 S 325 12/06/2001 12/06/2010 Common 325 $26.23 10,737 D
Exercise & Sale $20.4167 04/17/2006 04/17/2006 S 903 12/06/2001 12/06/2010 Common 903 $26.25 9,834 D
Exercise & Sale $20.4167 04/17/2006 04/17/2006 S 97 12/06/2001 12/06/2010 Common 97 $26.27 9,737 D
Exercise & Sale $20.4167 04/17/2006 04/17/2006 S 97 12/06/2001 12/06/2010 Common 97 $26.36 9,640 D
Explanation of Responses:
Remarks:
This report covers the exercise of 6,962 options and sale of same.
/s/Michele G. DiAcri, POA for Thomas R. Marston 04/19/2006
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.