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                                                                 Exhibit 10.7.2a

                               FIRST AMENDMENT TO
                   SUPPLEMENTAL EXECUTIVE RETIREMENT AGREEMENT

         WHEREAS, the Connecticut Water Company (hereinafter referred to as
"Employer") and Michele G. DiAcri (hereinafter referred to as the "Employee")
entered into a Supplement Executive Retirement Agreement dated as of February
28, 2000 (hereinafter referred to as the "Agreement"); and

         WHEREAS, the parties wish to amend the Agreement in accordance with the
provisions of Section 5.a. thereof;

         NOW THEREFORE, in consideration of the premises and of the mutual
covenants and agreements contained herein, the Agreement is hereby amended
effective as of the date first above written as follows:

         1.       The second paragraph of Section 1.a. of the Agreement is
deleted and the following two paragraphs are substituted in lieu thereof:

         "For purposes of the foregoing, `Average Earnings' shall have the
meaning set forth in the Retirement Plan, except that in determining Average
Earnings, Annual Earnings (as defined in the Retirement Plan) shall not be
limited to the OBRA '93 annual compensation limit, the annual compensation limit
imposed under the Economic Growth and Tax Relief Reconciliation Act of 2001
("EGTRRA"), or any similar limit on annual compensation under Section 401(a)(17)
of the Internal Revenue Code of 1986, as amended (the "Code"), imposed by any
future legislation.

         In determining Average Earnings, if the Employee retires under this
Agreement on or after attainment of age 62, Annual Earnings shall include the
value of all of the following: (1) Performance Shares, (2) Cash Units, and (3)
Restricted Stock awarded to a Participant under the Connecticut Water Service,
Inc. Performance Stock Program for any year in which such awards are made,
including awards made prior to the date this change in the definition of Average
Earnings is adopted. The value of such awards shall be included within Annual
Earnings in the year in which such amounts are finally determined and actually
awarded. Such amounts, if credited to a Performance Share Account, shall not be
counted a second time when payment is made from such Account."

         2.       A new Section 1.b. shall be inserted into Section 1 of the
Agreement, immediately following Section 1.a. Sections 1.b. and l.c. shall be
re-designated as Sections l.c. and 1.d. respectively. The new Section 1.b. shall
read in its entirety as follows:

         "b.      Early Retirement. If, upon or after the Employee's attainment
of age 55 and prior to attainment of age 65, the Employee's employment shall be
terminated and she shall be eligible to receive a benefit under the Retirement
Plan, the Employee shall be entitled to receive pursuant to this Agreement a
benefit having a value equal to an annual benefit for her life of (a) 60% of the
Employee's Average Earnings reduced by (b) the annual benefit payable to the
Employee

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under the Retirement Plan in the form of a single life annuity for the life of
the Employee (whether or not the benefit under the Retirement Plan is actually
paid in such form) commencing at age 65 (whether or not the benefit under the
Retirement Plan commences at such time). If such benefit shall commence to be
paid prior to the Employee's attainment of age 62, such benefit shall be reduced
by 4% for each complete year by which the date of benefit commencement precedes
her attainment of age 62.

         For purposes of the foregoing, `Average Earnings' shall have the
meaning set forth in the Retirement Plan, except that in determining Average
Earnings, Annual Earnings (as defined in the Retirement Plan) shall not be
limited to the OBRA '93 annual compensation limit, the annual compensation limit
imposed under the Economic Growth and Tax Relief Reconciliation Act of 2001
("EGTRRA"), or any similar limit on annual compensation under Section 401(a)(17)
of the Internal Revenue Code of 1986, as amended (the. "Code"), imposed by any
future legislation.

         In determining Average Earnings, if the Employee retires under this
Agreement on or after attainment of age 62, Annual Earnings shall include the
value of all of the following: (1) Performance Shares, (2) Cash Units, and (3)
Restricted Stock awarded to a Participant under the Connecticut Water Service,
Inc. Performance Stock Program for any year in which such awards are made,
including awards made prior to the date this change in the definition of Average
Earnings is adopted. The value of such awards shall be included within Annual
Earnings in the year in which such amounts are finally determined and actually
awarded. Such amounts, if credited to a Performance Share Account, shall not be
counted a second time when payment is made from such Account."

         3.       The last sentence of the newly designated Section l.c.
(entitled "Disability Benefits") is hereby amended by substituting therein the
number 62 where the number 65 appears.

         4.       The second sentence of Section 2. is hereby amended to read in
its entirety as follows:

"Such installments shall commence to be paid on the first such day which
coincides with or follows the day upon which the Employee's benefit under the
Retirement Plan shall commence to be paid; provided, however, that benefits
pursuant to Section 1.b. hereof shall commence at such later date as shall be
requested by the Employee and approved by the Committee under the Retirement
Plan, in its sole discretion."

         5.       The second paragraph of Section 2. is hereby amended by
deleting the reference to "Section 1.a. or 1.b." therein and substituting in
lieu thereof reference to "Section 1.a., 1.b. or l.c."

         6.       A new Section 3. shall be inserted into the Agreement,
immediately following Section 2. Existing Sections 3., 4., and 5. shall be
re-designated as Sections 4., 5., and 6. respectively. The new Section 3. shall
read in its entirety as follows:

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         "3.      DEATH BENEFIT. If the Employee has attained age 55 while in
service with the Employer and dies thereafter prior to the commencement of
benefits pursuant to this Agreement, and if the Employee's spouse or other
beneficiary is entitled to a death benefit under the Retirement Plan, said
spouse or other beneficiary shall be entitled to receive a death benefit
pursuant to this Plan. The amount of said death benefit shall be determined as
if the Employee had retired on the day prior to her death with either a Joint
and Survivor Annuity in effect, if her spouse is her beneficiary under the
Retirement Plan, or a five years certain and life annuity (as described in the
Retirement Plan) in effect, if her beneficiary is other than her spouse. If the
benefit is determined under a five years certain and life annuity, it shall be
paid in an actuarially equivalent lump sum, as determined by the Committee under
the Retirement Plan using the appropriate factors set forth in the Retirement
Plan.

          No other death benefits shall be payable in the event of the
Employee's death prior to the commencement of benefits hereunder."

         7.       Newly designated Section 6.a. of the Agreement (entitled
"Miscellaneous") is hereby amended to read in its entirety as follows:

         "a.      This Agreement may be amended at any time by mutual written
agreement of the parties hereto, but no amendment shall operate to give the
Employee, her spouse, her estate or any other beneficiary, either directly or
indirectly, any interest whatsoever in any funds or assets of the Employer,
except the right to receive the payments herein provided and the right to
receive such payments from assets held in the Trust."

IN WITNESS WHEREOF, the Employer and the Employee have executed this Amendment
as of December 17, 2003.

EMPLOYEE                                     THE CONNECTICUT WATER COMPANY

/s/ Michele G. DiAcri                           /s/ [ILLEGIBLE]

Michele G. DiAcri                               President / CEO

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