Exhibit 99.2

                                 Amendment No. 1
                                       To
                          Agreement and Plan of Merger

         The  Agreement  and Plan of Merger  dated as of January  12,  1999 (the
"Agreement"),  by and among Casella Waste Systems,  Inc., a Delaware corporation
("Buyer"), Rutland Acquisition Sub, Inc., a New Jersey corporation and a direct,
wholly-owned subsidiary of Buyer ("Sub") and KTI, Inc., a New Jersey corporation
("Seller")  is hereby  amended  as  follows  as of this  12th day of May,  1999.
Capitalized terms not otherwise defined herein shall have the meanings set forth
in the Agreement.

         1. Section  2.01(c) is hereby  amended by deleting  the first  sentence
thereof and substituting the following in lieu thereof:

         "Subject to Section 2.02, each issued and  outstanding  share of Seller
Common  Stock  (other  than shares to be canceled  in  accordance  with  Section
2.01(b) and any shares of Seller Common Stock which are held by shareholders who
are dissenting  shareholders  pursuant to Section 14A: 11-3 of the NJBCA), shall
be  converted  into the right to receive 0.59 shares (the  "Exchange  Ratio") of
Buyer Common Stock."

         2. The references to "November 30, 1998" in Section  3.02(a) are hereby
deleted  and "May 11,  1999" is  hereby  substituted  in lieu  thereof,  and the
reference  to  "13,263,960"  in clause  (i) of the  second  sentence  of Section
3.02(a)  is  hereby  deleted  and  "13,916,238"  is hereby  substituted  in lieu
thereof.

         3. Section  3.04(a) is hereby amended by adding the following  sentence
after the first sentence thereof:  "Without limiting the foregoing, the Seller's
Annual Report on Form 10-K for the year ended December 31, 1998,  required to be
filed on or prior to March 31, 1999,  shall be deemed to be a Seller SEC Report,
whether or not the same has been filed on or prior to the date hereof.

         4.  Section  3.04(b) is hereby  amended by deleting  the last  sentence
thereof and inserting the following in lieu thereof:  "The audited balance sheet
of Seller as of December 31,  1998,  in the form of the balance  sheet  attached
hereto as EXHIBIT A, is referred to herein as the "Seller  Balance  Sheet".  The
financial  statements  included in Seller's  Annual  Report on Form 10-K for the
year ended December 31, 1998 (including the notes thereto) shall be identical in
all respects to EXHIBIT A."

         5. The  reference  in Section  3.05 to  "September  30, 1998" is hereby
deleted and "December 31, 1998" is hereby substituted in lieu thereof.





         6. Section 3.18 is hereby  deleted and the following  shall be inserted
in lieu thereof:

         "Section 3.18 OPINION OF FINANCIAL  ADVISOR.  The financial advisors of
Seller,  Credit Suisse First Boston Corporation and CIBC Oppenheimer Corp., have
each  delivered to the Board of Directors of Seller an opinion dated the date of
this  Amendment No. 1 to the effect that the Exchange  Ratio (as amended by this
Amendment  No. 1) is fair to the holders of Seller Common Stock from a financial
point of view."

         7. The references to "November 30, 1998" in Section  4.02(a) are hereby
deleted and "April 30,  1999" is hereby  substituted  in lieu  thereof,  and the
reference to  "13,819,473"  in the second  sentence of Section 3.02(a) is hereby
deleted and "14,504,011" is hereby substituted in lieu thereof. The reference to
October 31, 1998 is hereby deleted and January 31, 1999 is hereby substituted in
lieu thereof.

         8.  Section  4.04(b) is hereby  amended by deleting  the last  sentence
thereof and  inserting the following in lieu  thereof:  "The  unaudited  balance
sheet of Seller as of January  31,  1999 is  referred  to herein as the  "Seller
Balance Sheet".

         9. The  reference  in  Section  4.05 to  "October  31,  1998" is hereby
deleted and "January 31, 1999" is hereby substituted in lieu thereof.

         10.      Section 4.17 is hereby deleted and the following shall be
                  inserted in lieu thereof:

         "Section 4.17 OPINION OF FINANCIAL  ADVISOR.  The financial  advisor of
Buyer,  Donaldson,  Lufkin & Jenrette Securities  Corporation,  has delivered to
Buyer an opinion dated the date of this  Amendment No. 1, to the effect that the
Exchange  Ratio (as  amended by this  Amendment  No. 1) is fair to Buyer and its
stockholders from a financial point of view.

         11.  Section 5.01 is hereby  amended by adding the  following  sentence
immediately  following the first sentence thereof:  "Unless filed on or prior to
the date hereof,  Seller shall  promptly  (and in any event within five business
days after the date  hereof)  file its  Annual  Report on Form 10-K for the year
ended December 31, 1998."

         12.  Section  5.02(f)  is hereby  deleted  and the  following  shall be
inserted in lieu thereof:

         (f) (i) Except to the extent required under applicable law or the terms
of a  collective  bargaining  agreement,  increase  or  agree  to  increase  the
compensation  payable or to become payable to its officers or employees,  except




for increases in salary or wages of employees in accordance with past practices,
(ii) grant any  additional  severance or  termination  pay to, or enter into any
employment or severance agreements with, any employees or officers,  (iii) enter
into any collective bargaining agreement,  or (iv) establish,  adopt, enter into
or  amend  any  bonus,  profit  sharing,  thrift,  compensation,  stock  option,
restricted  stock,  pension,  retirement,  deferred  compensation,   employment,
termination, severance or other plan, trust, fund, policy or arrangement for the
benefit of any  directors,  officers or employees or pay any bonuses  except for
bonuses based on the performance of Buyer and its employees  during Buyer's 1999
fiscal  year  which are  consistent  in nature  and amount  with  Buyer's  bonus
payments  for its prior year or in  accordance  with  contracts in effect on the
date hereof.

         13. Section 5.02(d) is hereby amended by deleting the reference to "$20
million" and inserting "$30 million" in lieu thereof.

         14. Section 5.03 is hereby amended by adding the following  sentence to
the end thereof:  "Without limiting the foregoing,  the Seller shall confer on a
regular and frequent basis with the Buyer with respect to any and all litigation
brought or pending  against it by  shareholders  or former  shareholders  of the
Seller as to appropriate  defense and other  strategies in connection  with such
litigation,  including  without  limitation the litigation  brought by Salvatore
Russo,  individually  and on behalf  of a class of  persons  similarly  situated
pending in the United States District Court for the District of New Jersey.

         15. A new Section 7.02(h) shall be added, which shall read as follows:

                  "(h)  TERI ENVIRONMENTAL MATTERS. The violations at the Timber
Energy Resources, Inc.  biomass-to-energy facility in Telogia, Florida shall not
have resulted in, and are not likely,  in the reasonable  judgment of Buyer,  to
result in, (i) the conviction of Seller or any subsidiary thereof or any officer
or  director of any such entity of, or the entry of a pleading of guilty or nolo
contendere  by any such  person or  entity  to,  any  criminal  charge  relating
thereto, or (ii) fines,  penalties or other financial liability to Seller or any
of its subsidiaries of more than $500,000."

         16.      Section 7.03(d) is hereby deleted and the following shall be
                  inserted in lieu thereof:

         "(d) EMPLOYMENT AGREEMENTS.  The executive officers of Buyer shall have
entered into Employment Agreements with Buyer in the form set forth as Exhibit D
at compensation  levels  approved by the Board of Directors of the Buyer,  which
such  compensation  shall be  consistent  with the  compensation  payable to the
officers  of  Seller   entering  into   Employment   Agreements  with  Buyer  as
contemplated by Section 7.02(g) above."

         17. Section 9.02(b) is hereby amended by deleting the party which is to
receive a copy of  notices  to  Seller,  and  inserting  the  following  in lieu
thereof:



                                    Cadwalader, Wickersham & Taft
                                    100 Maiden Lane
                                    New York NY 10038
                                    Attention: Brian Hoffmann, Esq.
                                    Telecopy: (212) 504-5541

         18. The Seller Disclosure  Schedule attached to the Agreement is hereby
deleted and the Seller Disclosure  Schedule attached hereto shall be inserted in
lieu thereof.

         19. The Buyer Disclosure  Schedule  attached to the Agreement is hereby
deleted and the Buyer Disclosure  Schedule  attached hereto shall be inserted in
lieu thereof.

         20.  Schedule 6.15 is hereby deleted and Schedule 6.15 attached  hereto
shall be substituted in lieu thereof.

         21.  The last  sentence  of  Section  9.03 is hereby  deleted,  and the
following  shall be inserted in lieu  thereof:  "All  references to 'the date of
this Agreement', 'the date hereof', and terms of similar import, other than with
respect to the provisions of Sections 5.01 and 5.02, shall mean the date of this
Amendment No. 1. For purposes of Sections  5.01 and 5.02,  such words shall mean
January 12, 1999." Each party hereby agrees that no action taken by the other or
its employees or other representatives prior to the date of this Amendment No. 1
constituted a violation of the provisions of Sections 6.02,  6.06 or 6.07 of the
Agreement,  and  releases  the other  from and  against  any claim that any such
violation occurred.

         22. In all other respects, the Agreement shall remain in full force and
effect,  and all references in the Agreement to "this  Agreement" shall mean the
Agreement as amended hereby.


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         IN WITNESS WHEREOF, Buyer, Sub and Seller have caused this Agreement to
be signed by their respective  officers thereunto duly authorized as of the date
first written above.


                                    CASELLA WASTE SYSTEMS, INC.

                                    By: /s/ JOHN W. CASELLA
                                       ----------------------------------------
                                        John W. Casella, Chairman and CEO

                                    RUTLAND ACQUISITION SUB, INC.

                                    By: /s/ JOHN W. CASELLA
                                       ----------------------------------------
                                         John W. Casella, President
                                    KTI, INC.


                                    By: /s/ ROSS PIRASTEH
                                       ----------------------------------------
                                         Ross Pirasteh, Chairman




         [Signature page to Amendment No. 1 to Agreement and Plan of Merger]