UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934

                               (Amendment No. 6)*


                         AMERICAN WATER WORKS CO., INC.
--------------------------------------------------------------------------------
                                (Name of Issuer)


                                  COMMON STOCK
--------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                   03041110 2
--------------------------------------------------------------------------------
                                 (CUSIP Number)


                                December 31, 2001
                                -----------------
             (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

              [X]  Rule 13d-1(b)
              [ ]  Rule 13d-1(c)
              [ ]  Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).




                               Page 1 of 8 pages



--------------------------                          ----------------------------
CUSIP No. 030411102                   13G                  Page 2 of 8 Pages
------------- ------------------------------------------------------------------
     1        NAME OF REPORTING PERSON
              S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

              THE BESSEMER GROUP, INCORPORATED*
              13-3093730
------------- ------------------------------------------------------------------
     2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                     (a)  [ ]
                                                     (b)  [X]
------------- ------------------------------------------------------------------
     3        SEC USE ONLY

------------- ------------------------------------------------------------------
     4        CITIZENSHIP OR PLACE OF ORGANIZATION

              Delaware
------------- ------------------------------------------------------------------
---------------------------------- ---------- ----------------------------------
                                       5      SOLE VOTING POWER

            NUMBER OF                         -0-
                                   ---------- ----------------------------------
             SHARES                    6      SHARED VOTING POWER
          BENEFICIALLY
            OWNED BY                          6,206,654 shs.
                                   ---------- ----------------------------------
              EACH                     7      SOLE DISPOSITIVE POWER
            REPORTING
             PERSON                           -0-
                                   ---------- ----------------------------------
              WITH                     8      SHARED DISPOSITIVE POWER

                                              6.206,654 shs.
---------------------------------- ---------- ----------------------------------
------------- ------------------------------------------------------------------
     9        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

              6,206,654 shs.
------------- ------------------------------------------------------------------
     10       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
              SHARES*
                                                             [ ]
------------- ------------------------------------------------------------------
     11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

              6.2%
------------- ------------------------------------------------------------------
     12       TYPE OF REPORTING PERSON*

              HC
------------- ------------------------------------------------------------------
*The shares reported on this page are the aggregate of the shares reported on
pages 3, 4 and 5, as The Bessemer Group, Incorporated is the parent of the other
reporting persons.

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!




                                  Page 2 of 8



--------------------------                          ----------------------------
CUSIP No. 030411102                    13G                 Page 3 of 8 Pages
------------- ------------------------------------------------------------------
     1        NAME OF REPORTING PERSON
              S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

              BESSEMER TRUST COMPANY
              22-0770670
------------- ------------------------------------------------------------------
     2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                     (a) [X]
                                                     (b) [ ]
------------- ------------------------------------------------------------------
     3        SEC USE ONLY

------------- ------------------------------------------------------------------
     4        CITIZENSHIP OR PLACE OF ORGANIZATION

              New Jersey
------------- ------------------------------------------------------------------
---------------------------------- ---------- ----------------------------------
                                       5      SOLE VOTING POWER

            NUMBER OF                         4,066,774 shs.
                                   ---------- ----------------------------------
             SHARES                    6      SHARED VOTING POWER
          BENEFICIALLY
            OWNED BY                          -0-
                                   ---------- ----------------------------------
              EACH                     7      SOLE DISPOSITIVE POWER
            REPORTING
             PERSON                           4,066,774 shs.
                                   ---------- ----------------------------------
              WITH                     8      SHARED DISPOSITIVE POWER

                                              -0-
---------------------------------- ---------- ----------------------------------
------------- ------------------------------------------------------------------
     9        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

              4,066,774 shs.
------------- ------------------------------------------------------------------
     10       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
              SHARES*
                                                     [ ]
------------- ------------------------------------------------------------------
     11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

              4.1%
------------- ------------------------------------------------------------------
     12       TYPE OF REPORTING PERSON*

              BK
------------- ------------------------------------------------------------------
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!




                                  Page 3 of 8



--------------------------                          ----------------------------
CUSIP No. 030411102                     13G                Page 4 of 8 Pages
------------- ------------------------------------------------------------------
     1        NAME OF REPORTING PERSON
              S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

              BESSEMER TRUST COMPANY, N.A.
              13-2792165
------------- ------------------------------------------------------------------
     2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                     (a) [X]
                                                     (b) [ ]
------------- ------------------------------------------------------------------
     3        SEC USE ONLY

------------- ------------------------------------------------------------------
     4        CITIZENSHIP OR PLACE OF ORGANIZATION

              New Jersey
------------- ------------------------------------------------------------------
---------------------------------- ---------- ----------------------------------
                                       5      SOLE VOTING POWER

            NUMBER OF                         800 shs.
                                   ---------- ----------------------------------
             SHARES                    6      SHARED VOTING POWER
          BENEFICIALLY
            OWNED BY                          -0-
                                   ---------- ----------------------------------
              EACH                     7      SOLE DISPOSITIVE POWER
            REPORTING
             PERSON                           800 shs.
                                   ---------- ----------------------------------
              WITH                     8      SHARED DISPOSITIVE POWER

                                              -0-
---------------------------------- ---------- ----------------------------------
------------- ------------------------------------------------------------------
     9        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

              800 shs.
------------- ------------------------------------------------------------------
     10       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
              SHARES*
                                                     [ ]
------------- ------------------------------------------------------------------
     11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

              0.0%
------------- ------------------------------------------------------------------
     12       TYPE OF REPORTING PERSON*

              BK
------------- ------------------------------------------------------------------
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!




                               Page 4 of 8 pages




--------------------------                           ---------------------------
CUSIP No. 030411102                    13G                Page 5 of 8 Pages
------------- ------------------------------------------------------------------
     1        NAME OF REPORTING PERSON
              S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

              BESSEMER TRUST COMPANY OF FLORIDA
              59-6067333
------------- ------------------------------------------------------------------
     2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                     (a) [X]
                                                     (b) [ ]
------------- ------------------------------------------------------------------
     3        SEC USE ONLY

------------- ------------------------------------------------------------------
     4        CITIZENSHIP OR PLACE OF ORGANIZATION

              Florida
------------- ------------------------------------------------------------------
---------------------------------- ---------- ----------------------------------
                                       5      SOLE VOTING POWER

            NUMBER OF                         2,138,980 shs.

                                   ---------- ----------------------------------
             SHARES                    6      SHARED VOTING POWER
          BENEFICIALLY
            OWNED BY                          100 shs.
                                   ---------- ----------------------------------
              EACH                     7      SOLE DISPOSITIVE POWER
            REPORTING
             PERSON                           2,138,980 shs.
                                   ---------- ----------------------------------
              WITH                     8      SHARED DISPOSITIVE POWER

                                              100 shs.
---------------------------------- ---------- ----------------------------------
------------- ------------------------------------------------------------------
     9        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

              2,139,080 shs.
------------- ------------------------------------------------------------------
     10       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
              SHARES*
                                                     [ ]
------------- ------------------------------------------------------------------
     11       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

              2.1%
------------- ------------------------------------------------------------------
     12       TYPE OF REPORTING PERSON*

              BK
------------- ------------------------------------------------------------------
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!




                               Page 5 of 8 pages



Item 1.

(a)      Name of Issuer:

                           American Water Works Co., Inc.

(b)      Address of Issuer's Principal Executive Offices:

                           1025 Laurel Oak Road
                           P.O. Box 1770
                           Voorhees, NJ  08043


Item 2.

         (a), (b) and (c) Name of Persons Filing, Address of Principal Business
                          -----------------------------------------------------
         Office and Citizenship:
         -----------------------

                  The Bessemer Group, Incorporated ("BGI") as a parent holding
company and Bessemer Trust Company ("BTC"), Bessemer Trust Company, N.A.
("BTNA") and Bessemer Trust Company of Florida ("BTF") as a group. The filing of
this statement by BTC, BTNA and BTF as part of a group does not constitute an
admission that any of BTC, BTNA or BTF controls any other of the other reporting
persons. BTC, BTNA and BTF are each wholly-owned by BGI.

                  BTC, BTNA and BTF are each trust companies that manage
accounts for the benefit of others. The holders of the securities referred to in
this statement are trusts for the benefit of clients of BTC or BTF, of which BTC
or BTF are trustees or co-trustees, and accounts managed by BTNA or BTF.

                  BGI and BTC each has its principal business office at 100
Woodbridge Center Drive, Woodbridge, New Jersey 07095-0980. BTNA has its
principal office at 630 Fifth Avenue, New York, New York 10111. BTF has its
principal office at 222 Royal Palm Way, Palm Beach, Florida 33480-4394.

                  BGI is a corporation organized under the laws of Delaware. BTC
is a bank organized under the laws of New Jersey. BTNA is a national bank
organized under the laws of the United States of America. BTF is a trust company
organized under the laws of Florida.

(d)      Title of Class of Securities:

                           Common Stock

(e)      CUSIP Number:

                           030411 10 2




                               Page 6 of 8 pages



Item        3. If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b)
            or (c), check whether the person filing is a:

                  (a) through (f), (h) and (i) not applicable.

                  (g) [X] Parent holding company or control person, in
                           accordance with Rule 13d-1(b)(1)(ii)(G), as to BGI.

                  (j) [X] Group, in accordance with Rule 13d-1(b)(1)(ii)(J), as
                           to BTC, BTNA and BTF.


Item 4.  Ownership

         Items 5 through 9 and Item 11 of Pages 2 through 5 of this Statement
are incorporated herein by reference.


Item 5.  Ownership of Five Percent or Less of a Class

                  Not applicable.

Item 6.  Ownership of More than Five Percent on Behalf of Another Person

                  Not applicable.

Item 7.  Identification and Classification of the Subsidiary Which Acquired the
   Security Being Reported on By the Parent Holding Company

                  Items 1 and 12 of pages 3 through 5 of this Statement are
incorporated herein by reference.


Item 8.  Identification and Classification of Members of the Group

                  BTC, BTNA and BTF are each banks as defined in Section 3(a)(6)
       of the Securities Exchange Act of 1934, as amended.


Item 9.  Notice of Dissolution of Group

                  Not applicable.




                               Page 7 of 8 pages



Item 10.  Certification

                  By signing below, the undersigned certify that, to the best of
the knowledge and belief of the undersigned, the securities referred to above
were acquired and are held in the ordinary course of business and were not
acquired and are not held for the purpose of or with the effect of changing or
influencing the control of the issuer of such securities and were not acquired
and are not held in connection with or as a participant in any transaction
having that purpose or effect.

Item 11.  Signatures

                  After reasonable inquiry and to the best of our knowledge and
belief, we certify that the information set forth in this statement is true,
complete and correct.

Dated:            February 14, 2002


                                          THE BESSEMER GROUP, INCORPORATED


                                          By: /s/ Richard R. Davis
                                             ----------------------------
                                             Name:      Richard R. Davis
                                             Title:     Managing Director


                                          BESSEMER TRUST COMPANY


                                          By: /s/ Richard R. Davis
                                             ----------------------------
                                             Name:      Richard R. Davis
                                             Title:     Managing Director



                                          BESSEMER TRUST COMPANY, N.A.


                                          By: /s/ Richard R. Davis
                                             ----------------------------
                                             Name:      Richard R. Davis
                                             Title:     Managing Director



                                          BESSEMER TRUST COMPANY OF FLORIDA


                                          By: /s/ Richard R. Davis
                                             ----------------------------
                                             Name:      Richard R. Davis,
                                             Title:     Managing Director


                               Page 8 of 8 pages