sec document


                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                 --------------

                                  SCHEDULE 13D
                                 (RULE 13d-101)

             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
            TO RULE 13D-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO
                                  RULE 13d-2(a)

                             (Amendment No. 11)(1)

                            Layne Christensen Company
                            -------------------------
                                (Name of Issuer)

                          Common Stock, $.01 Par Value
                          ----------------------------
                         (Title of Class of Securities)

                                    521050104
                                    ---------
                                 (CUSIP Number)

                              STEVEN WOLOSKY, ESQ.
                 OLSHAN GRUNDMAN FROME ROSENZWEIG & WOLOSKY LLP
                                Park Avenue Tower
                               65 East 55th Street
                            New York, New York 10022
                                 (212) 451-2300
                                 --------------
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                October 18, 2006
                                ----------------
             (Date of Event Which Requires Filing of This Statement)

         If the filing person has  previously  filed a statement on Schedule 13G
to report the  acquisition  that is the  subject of this  Schedule  13D,  and is
filing this schedule because of Rule 13d-1(e),  13d-1(f) or 13d-1(g),  check the
following box | |.

         NOTE.  Schedules  filed in paper format shall include a signed original
and five copies of the  schedule,  including  all  exhibits.  SEE Rule 13d-7 for
other parties to whom copies are to be sent.

                         (Continued on following pages)

                               (Page 1 of 7 Pages)

------------------------
(1)      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 disclosures provided in a prior cover page.

         The information  required on 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 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).




----------------------                                    ----------------------
CUSIP No. 521050104                   13D                    Page 2 of 7 Pages
----------------------                                    ----------------------


================================================================================
     1         NAME OF REPORTING PERSONS
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                   STEEL PARTNERS II, L.P.
--------------------------------------------------------------------------------
     2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a) / /
                                                                         (b) / /
--------------------------------------------------------------------------------
     3         SEC USE ONLY

--------------------------------------------------------------------------------
     4         SOURCE OF FUNDS*

                    WC
--------------------------------------------------------------------------------
     5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
               PURSUANT TO ITEM 2(d) OR 2(e)                                 / /
--------------------------------------------------------------------------------
     6         CITIZENSHIP OR PLACE OF ORGANIZATION

                    DELAWARE
--------------------------------------------------------------------------------
 NUMBER OF         7     SOLE VOTING POWER
   SHARES
BENEFICIALLY                  1,416,447
  OWNED BY     -----------------------------------------------------------------
    EACH           8     SHARED VOTING POWER
 REPORTING
PERSON WITH                   - 0 -
               -----------------------------------------------------------------
                   9     SOLE DISPOSITIVE POWER

                              1,416,447
              ------------------------------------------------------------------
                  10     SHARED DISPOSITIVE POWER

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

                    1,416,447
--------------------------------------------------------------------------------
    12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
               CERTAIN SHARES*                                               / /
--------------------------------------------------------------------------------
    13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                    9.2%
--------------------------------------------------------------------------------
    14         TYPE OF REPORTING PERSON*

                    PN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!




----------------------                                    ----------------------
CUSIP No. 521050104                   13D                    Page 3 of 7 Pages
----------------------                                    ----------------------


================================================================================
     1         NAME OF REPORTING PERSONS
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                    STEEL PARTNERS, L.L.C.
--------------------------------------------------------------------------------
     2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a) / /
                                                                         (b) / /
--------------------------------------------------------------------------------
     3         SEC USE ONLY

--------------------------------------------------------------------------------
     4         SOURCE OF FUNDS*

                    OO
--------------------------------------------------------------------------------
     5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
               PURSUANT TO ITEM 2(d) OR 2(e)                                 / /
--------------------------------------------------------------------------------
     6         CITIZENSHIP OR PLACE OF ORGANIZATION

                    DELAWARE
--------------------------------------------------------------------------------
 NUMBER OF         7     SOLE VOTING POWER
   SHARES
BENEFICIALLY                  1,416,447
  OWNED BY     -----------------------------------------------------------------
    EACH           8     SHARED VOTING POWER
 REPORTING
PERSON WITH                   - 0 -
               -----------------------------------------------------------------
                   9     SOLE DISPOSITIVE POWER

                              1,416,447
              ------------------------------------------------------------------
                  10     SHARED DISPOSITIVE POWER

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

                    1,416,447
--------------------------------------------------------------------------------
    12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
               CERTAIN SHARES*                                               / /
--------------------------------------------------------------------------------
    13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                    9.2%
--------------------------------------------------------------------------------
    14         TYPE OF REPORTING PERSON*

                    OO
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!




----------------------                                    ----------------------
CUSIP No. 521050104                   13D                    Page 4 of 7 Pages
----------------------                                    ----------------------


================================================================================
     1         NAME OF REPORTING PERSONS
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                    WARREN G. LICHTENSTEIN
--------------------------------------------------------------------------------
     2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a) / /
                                                                         (b) / /
--------------------------------------------------------------------------------
     3         SEC USE ONLY

--------------------------------------------------------------------------------
     4         SOURCE OF FUNDS*

                    OO
--------------------------------------------------------------------------------
     5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
               PURSUANT TO ITEM 2(d) OR 2(e)                                 / /
--------------------------------------------------------------------------------
     6         CITIZENSHIP OR PLACE OF ORGANIZATION

                    USA
--------------------------------------------------------------------------------
 NUMBER OF         7     SOLE VOTING POWER
   SHARES
BENEFICIALLY                  1,425,447(1)
  OWNED BY     -----------------------------------------------------------------
    EACH           8     SHARED VOTING POWER
 REPORTING
PERSON WITH                   - 0 -
               -----------------------------------------------------------------
                   9     SOLE DISPOSITIVE POWER

                              1,425,447(1)
              ------------------------------------------------------------------
                  10     SHARED DISPOSITIVE POWER

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

                    1,425,447(1)
--------------------------------------------------------------------------------
    12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
               CERTAIN SHARES*                                               / /
--------------------------------------------------------------------------------
    13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                    9.3%
--------------------------------------------------------------------------------
    14         TYPE OF REPORTING PERSON*

                    IN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

         (1) Includes 9,000 shares of Common Stock underlying options granted to
Mr. Lichtenstein.




----------------------                                    ----------------------
CUSIP No. 521050104                   13D                    Page 5 of 7 Pages
----------------------                                    ----------------------


================================================================================
     1         NAME OF REPORTING PERSONS
               I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

                    JOHN J. QUICKE
--------------------------------------------------------------------------------
     2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a) / /
                                                                         (b) / /
--------------------------------------------------------------------------------
     3         SEC USE ONLY

--------------------------------------------------------------------------------
     4         SOURCE OF FUNDS*


--------------------------------------------------------------------------------
     5         CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
               PURSUANT TO ITEM 2(d) OR 2(e)                                 / /
--------------------------------------------------------------------------------
     6         CITIZENSHIP OR PLACE OF ORGANIZATION

                    USA
--------------------------------------------------------------------------------
 NUMBER OF         7     SOLE VOTING POWER
   SHARES
BENEFICIALLY                  - 0 -
  OWNED BY     -----------------------------------------------------------------
    EACH           8     SHARED VOTING POWER
 REPORTING
PERSON WITH                   - 0 -
               -----------------------------------------------------------------
                   9     SOLE DISPOSITIVE POWER

                              - 0 -
              ------------------------------------------------------------------
                  10     SHARED DISPOSITIVE POWER

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

                    - 0 -
--------------------------------------------------------------------------------
    12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
               CERTAIN SHARES*                                               / /
--------------------------------------------------------------------------------
    13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                    0%
--------------------------------------------------------------------------------
    14         TYPE OF REPORTING PERSON*

                    IN
================================================================================

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!




----------------------                                    ----------------------
CUSIP No. 521050104                   13D                    Page 6 of 7 Pages
----------------------                                    ----------------------


          The following constitutes Amendment No. 11 ("Amendment No. 11") to the
Schedule 13D filed by the undersigned. This Amendment No. 11 amends the Schedule
13D as specifically set forth.

         Items 2 and 4 are hereby amended to add the following:

          On October 16, 2006,  Warren  Lichtenstein  notified the Issuer of his
resignation  as a director  of the  Issuer.  Effective  October  18,  2006,  the
remaining  directors serving on the Board of Directors  appointed John J. Quicke
as a  director  to fill  the  vacancy  left by Mr.  Lichtenstein.  The  Board of
Directors of the Issuer also appointed Mr. Quicke to serve in Mr. Lichtenstein's
place on the  Compensation  Committee and the Nominating & Corporate  Governance
Committee of the Board of  Directors.  Accordingly,  Mr.  Quicke is a "Reporting
Person" in this Schedule 13D.

          The principal occupation of Mr. Quicke is serving as Vice President of
Steel Partners,  Ltd., a management  advisory  company that provides  management
services to Steel Partners II and its affiliates. The principal business address
of Mr. Quicke is c/o Steel  Partners II, L.P., 590 Madison  Avenue,  32nd Floor,
New York,  New York  10022.  Mr.  Quicke is a citizen  of the  United  States of
America.

         Item 5(a) is hereby amended to add the following:

          Currently,  Mr. Quicke does not beneficially own any securities of the
Issuer.




----------------------                                    ----------------------
CUSIP No. 521050104                   13D                    Page 7 of 7 Pages
----------------------                                    ----------------------


                                   SIGNATURES

                  After reasonable  inquiry and to the best of his knowledge and
belief, each of the undersigned certifies that the information set forth in this
statement is true, complete and correct.

Dated: October 20, 2006                   STEEL PARTNERS II, L.P.

                                          By: Steel Partners, L.L.C.
                                              General Partner

                                          By: /s/ Warren G. Lichtenstein
                                              ----------------------------------
                                              Warren G. Lichtenstein
                                              Managing Member


                                          STEEL PARTNERS, L.L.C.

                                          By: /s/ Warren G. Lichtenstein
                                              ----------------------------------
                                              Warren G. Lichtenstein
                                              Managing Member


                                          /s/ Warren G. Lichtenstein
                                          --------------------------------------
                                          WARREN G. LICHTENSTEIN


                                          /s/ John J. Quicke
                                          --------------------------------------
                                          JOHN J. QUICKE