Document:

EXHIBIT 10.50F

                   FIRST AMENDMENT TO THE TERM LOAN AGREEMENT

          This  Amendment is made and entered into as of the 30th day of August,
2004,  by and between WELLS FARGO BANK, NATIONAL ASSOCIATION, successor to First
Security Bank ("Bank"), and AMERICAN ECOLOGY CORPORATION, a Delaware corporation
("Borrower").

                                 R E C I T A L S

          D.     Borrower  and Bank entered into a Term Loan Agreement, dated as
of  October  28,  2002 (as amended, modified, or supplemented from time to time,
the  "Loan  Agreement").

          E.     Borrower  has  asked Bank to amend the Loan Agreement to modify
some of the financial covenants and authorize annual dividends to the Borrower's
stockholders.

          F.     Bank  is willing to amend the Loan Agreement upon the terms and
conditions  of  this  Amendment.

                                A M E N D M E N T

          NOW,  THEREFORE,  the  parties  agree  as  follows.

          DEFINITIONS.

          Except as specifically defined otherwise in this Amendment, all of the
terms  herein  shall  have  the same meaning as contained in the Loan Agreement.

          AMENDMENTS.

               AMENDMENTS  TO  ARTICLE  6  -  NEGATIVE  COVENANTS.

                    SECTION  6.6  OF THE LOAN AGREEMENT IS AMENDED TO PERMIT THE
DECLARATION  AND  PAYMENT  OF ANNUAL DIVIDENDS, AND THE SECTION SHALL PROVIDE IN
ITS  ENTIRETY  AS  FOLLOWS:

               6.6     DIVIDENDS.  Without  Bank's  prior  written  consent,
          Borrower  shall not declare or pay any dividends; or purchase, redeem,
          retire, or otherwise acquire for value any of its capital stock now or
          hereafter  outstanding;  or  make  any  distribution  of assets to its
          shareholders as such whether in cash, assets, or in obligations of the
          Borrower;  or  allocate or otherwise set apart any sum for the payment
          of  any  dividend or distribution on, or for the purchase, redemption,
          or  retirement  of  any shares of its capital stock; or make any other
          distribution  by  reduction  of capital or otherwise in respect of any
          shares  of its capital stock, except that the Borrower (1) may declare
          and  deliver dividends and make distributions payable solely in common
          stock of the Borrower; (2) may purchase or otherwise acquire shares of
          its capital stock by exchange for or out of the proceeds received from
          a  substantially  concurrent issue of new shares of its capital stock;
          and  (3)

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          may  declare  and  pay  an  annual dividend as long as on the date the
          dividend  is  declared  by  Borrower,  no  Event of Default shall have
          occurred  and  be  continuing,  no  event  or condition that, with the
          giving  of  notice or the passage of time or both, would constitute an
          Event  of  Default  shall  have  occurred  and  be continuing, and the
          payment  of the dividend will not result in the occurrence of an Event
          of  Default.

               AMENDMENTS  TO  ARTICLE  7  -  FINANCIAL  COVENANTS

                    SECTION  7.1 OF THE LOAN AGREEMENT IS AMENDED TO REPLACE THE
REQUIREMENT  THAT  BORROWER  MAINTAIN  A  DEBT  SERVICE  COVERAGE  RATIO  WITH A
REQUIREMENT  THAT  BORROWER  MAINTAIN  A  FIXED  CHARGE  COVERAGE RATIO, AND THE
SECTION  SHALL  PROVIDE  IN  ITS  ENTIRETY  AS  FOLLOWS:

               7.1     FIXED  CHARGE  COVERAGE RATIO.  Borrower shall maintain a
          ratio  of  EBITDA  to  Fixed Charges determined on a rolling 4-quarter
          basis at the end of each quarter of Borrower's fiscal year of not less
          than  1.20  to  1.00 for Borrower's 2004 and 2005 fiscal years and not
          less  than  1.25 to 1.00 thereafter. The term "EBITDA" shall mean, for
          any  period,  as applied to Borrower, the sum of (1) Borrower's Income
          from Operations (consistent with GAAP and as reported in the Company's
          filings with the Securities and Exchange Commission), plus (2) the sum
          of  the  following  items  to the extent they were deducted to compute
          Borrower's  Income  from  Operations:  (a)  non-cash  accretion  of
          closure/post-closure  obligations,  plus  (b)  depreciation,  plus (c)
          amortization, plus (d) other noncash charges. The term "Fixed Charges"
          shall  mean,  for  any  period,  the sum of (i) principal and interest
          payments for indebtedness of Borrower owing to third parties for money
          borrowed,  including capitalized leases of Borrower, paid or scheduled
          to  be  paid  during  the  period, plus (ii) all cash payments paid or
          scheduled  to  be  paid  during  the  period for deferred closure/post
          closure obligations, plus (iii) all of Borrower's capital expenditures
          during the period, plus (iv) all dividends paid by Borrower during the
          period.

                    SECTION  7.2  OF THE LOAN AGREEMENT IS AMENDED TO MODIFY THE
LEVERAGE  RATIO TO BE MAINTAINED BY BORROWER BEGINNING AS OF SEPTEMBER 30, 2004,
AND  THE  SECTION  SHALL  PROVIDE  IN  ITS  ENTIRETY  AS  FOLLOWS:

               7.2     LEVERAGE  RATIO.  Borrower  shall  maintain  a  ratio  of
          Borrower's total liabilities to Borrower's shareholder's equity of not
          greater  than  1.00 to 1.00 at the end of each fiscal quarter and each
          fiscal  year.

                    SECTION  7.3  OF THE LOAN AGREEMENT IS AMENDED TO MODIFY THE
CURRENT  RATIO  TO BE MAINTAINED BY BORROWER BEGINNING AS OF SEPTEMBER 30, 2004,
AND  THE  SECTION  SHALL  PROVIDE  IN  ITS  ENTIRETY  AS  FOLLOWS:

               7.3     CURRENT  RATIO.  Borrower  shall  maintain  at the end of
          each  fiscal quarter and each fiscal year a ratio of current assets to
          current  liabilities of at least 1.50 to 1.00 during Borrower's fiscal
          year  2004  and  at  least  2.00  to  1.00  thereafter.

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          CONSENT  TO  COMMON  STOCK  REPURCHASE  PLAN.

          From September 1, 2004, through August 31, 2005, Borrower may purchase
shares  of  its common stock in an aggregate amount not to exceed $4,000,000, as
long as on the date of each purchase (1) no Event of Default shall have occurred
and  be continuing, (2) no event or condition that, with the giving of notice or
the  passage  of  time  or both, would constitute an Event of Default shall have
occurred  and  be continuing, (3) the purchase will not result in the occurrence
of  an  Event  of  Default,  and  (4)  the  purchase  does  not violate any law.

          CONDITIONS  PRECEDENT.

          As  conditions  precedent to Bank's obligation to extend the financial
accommodations  provided  for  in  this  Amendment,  Borrower  shall execute and
deliver,  or  cause to be executed and delivered, to Bank, in form and substance
satisfactory  to  Bank  and  its  counsel,  the  following:

               EVIDENCE  OF  ALL  CORPORATE  ACTION  BY  BORROWER.

               Certified  copies  of  all  corporate  action  taken  by Borrower
authorizing its execution and delivery of this Amendment and each other document
to be delivered pursuant to this Amendment and its performance of its agreements
thereunder.

               CERTIFICATES  OF  EXISTENCE.

               Certificates  of  good  standing  or  existence  that  Bank  may
reasonably  require  showing that Borrower is in good standing under the laws of
the  state  of  its  incorporation.

               PUBLIC  RECORD  SEARCHES.

               Uniform Commercial Code financing statement searches, federal and
state  income  tax  lien  searches,  judgment  or  litigation searches, or other
similar  searches  that Bank may reasonably require and in such form as Bank may
reasonably  require.

               ADDITIONAL  DOCUMENTATION.

               Such  other  approvals,  opinions,  or  documents  as  Bank  may
reasonably  request.

          REAFFIRMATION  OF  LOAN  DOCUMENTS.

          Borrower  acknowledges and reaffirms all existing security agreements,
financing  statements,  and  any other documents executed in connection with the
Loan  Agreement.

          BORROWER'S COVENANTS, REPRESENTATIONS, AND WARRANTIES.

          In  order to induce Bank to enter into this Amendment and to amend the
Loan  Agreement  in  the  manner  provided  herein,  Borrower  acknowledges  and
reaffirms  as  true, correct, and complete in all material respects on and as of
the  date  of  this  Amendment  all  covenants,

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representations,  and  warranties made by Borrower in the Loan Agreement and the
other  Loan Documents to the same extent as though made on and as of the date of
execution  of  this  Amendment.

               Borrower  represents  and  warrants that the execution, delivery,
and  performance  by  the Borrower of this Amendment has been duly authorized by
all  necessary  corporate  action.

               Borrower further represents and warrants that there are no Events
of  Default  or  facts which constitute, or with the passage of time and without
change  will  constitute,  an  Event  of  Default  under  the  Loan  Documents.

               Borrower  further  represents  that  there  has  been no material
adverse change in Borrower's business or financial condition from that reflected
in  the  most recent of Borrower's financial statements that have been delivered
to  Bank.

               Borrower  further  represents  and  warrants that Borrower has no
claims  or causes of action of any kind whatsoever against Bank or any of Bank's
present  or  former  employees, officers, directors, attorneys, or agents of any
kind  in  their  capacity  as  such  (collectively,  the "Released Parties") and
further,  that  the  Released  Parties  have  performed  all  of  the respective
obligations  under the Loan Agreement and other Loan Documents and have complied
with  all  provisions  therein  set  forth.

               Borrower  acknowledges and agrees that as of August 27, 2004, the
outstanding  principal  balance  of  the  Term  Loans  is  $4,549,999.93.

          COURSE  OF  DEALING.

          No  course  of  dealing  heretofore  or hereafter between Borrower and
Bank,  or  any  failure or delay on the part of Bank in exercising any rights or
remedies  under  the Loan Agreement or existing by law shall operate as a waiver
of  any right or remedy of Bank with respect to said indebtedness, and no single
or  partial  exercise of any right or remedy hereunder shall operate as a waiver
or  preclusion  to the exercise of any other rights or remedies Bank may have in
regard  to  said  indebtedness.

          GOVERNING  LAW.

          This  Amendment is made in the State of Idaho, which state the parties
agree  has  a  substantial  relationship  to  the  parties and to the underlying
transaction  embodied  hereby.  Accordingly, in all respects, this Amendment and
the Loan Documents and the obligations arising hereunder and thereunder shall be
governed  by,  and  construed in accordance with, the laws of the State of Idaho
applicable  to contracts made and performed in such state and any applicable law
of  the  United  States  of  America.  Each  party  hereby  unconditionally  and
irrevocably  waives, to the fullest extent permitted by law, any claim to assert
that  the  law  of  any  jurisdiction other than the State of Idaho governs this
Amendment  and  the  Loan  Documents.

<PAGE>
          COSTS  AND  EXPENSES.

          Borrower  shall  pay  on  demand by Bank all Bank Expenses incurred by
Bank in connection with the preparation, execution, delivery, filing, recording,
and  administration  of  this  Amendment  or  any  of the documents contemplated
hereby,  including,  without  limitation,  the reasonable fees and out of pocket
expenses  of  counsel  for Bank with respect to this Amendment and the documents
and  transactions  contemplated  hereby.

          ENTIRE  AGREEMENT.

          The  Loan  Agreement  as  amended  by this Amendment together with the
other  Loan  Documents  supersedes  all  prior negotiations, understandings, and
agreements  between  the  parties,  whether  oral  or  written,  and  all  such
negotiations,  understandings,  and agreements are evidenced by the terms of the
Loan Documents.  The Loan Agreement may not be further altered or amended in any
manner  except  by  a  writing  signed  by  Bank  and  Borrower.

          EFFECTS  OF  THIS  AMENDMENT.

          This  Amendment  shall  be  binding  and  deemed  effective when it is
executed  by  Borrower,  accepted  and  executed  by  Bank,  and  all conditions
precedent  set forth in Section 3 have been fulfilled.  All terms, covenants and
conditions  of  the  Loan  Agreement  that  have  not been modified, amended, or
otherwise  changed by this Amendment are reaffirmed and remain in full force and
effect.

          COUNTERPARTS.

          This Amendment may be executed in counterparts and may be delivered by
facsimile transmission.  Each such counterpart shall constitute an original, but
all  such  counterparts  shall  constitute  but  one  Amendment.

                             Signature Pages Follow

<PAGE>
          IN  WITNESS  WHEREOF,  Borrower  has executed this Amendment as of the
date first written  above.

                              BORROWER:

                              AMERICAN ECOLOGY CORPORATION

                              By/s/ James R. Baumgardner
                                ------------------------
                                James R. Baumgardner
                                Sr. Vice President and CFO

                               GUARANTOR'S CONSENT

          Each  Guarantor  consents  to,  acknowledges, and accepts the forgoing
Amendment.  Each Guarantor affirms and ratifies its Continuing and Unconditional
Guaranty  made  by  Guarantor  for  the  benefit  of  Bank (the "Guaranty"), and
confirms that the Guaranty remains in full force and effect and binding upon the
Guarantor  without  any  setoffs,  defenses,  or  counterclaims  of  any  kind
whatsoever.  Each  Guarantor  also  acknowledges  and  reaffirms  all  existing
security agreements, financing statements, and any other documents the Guarantor
executed  in  connection  with  the  Guaranty  or  the  Loan  Agreement.

          Dated  as  of  August  30,  2004.

                              GUARANTORS:

                              AMERICAN ECOLOGY SERVICES CORPORATION

                              By/s/ James R. Baumgardner
                                ------------------------
                                James R. Baumgardner
                                Sr. Vice President and CFO

                              AMERICAN ECOLOGY MANAGEMENT CORPORATION

                              By/s/ James R. Baumgardner
                                ------------------------
                                James R. Baumgardner
                                Vice President and Treasurer

                              TEXAS ECOLOGISTS, INC

                              By/s/ James R. Baumgardner
                                ------------------------
                                James R. Baumgardner
                                Vice President and Treasurer

                              AMERICAN ECOLOGY RECYCLE CENTER, INC.

<PAGE>
                              By/s/ James R. Baumgardner
                                ------------------------
                                James R. Baumgardner
                                Vice President and Treasurer

                              AMERICAN ECOLOGY ENVIRONMENTAL SERVICES
                              CORPORATION

                              By/s/ James R. Baumgardner
                                ------------------------
                                James R. Baumgardner
                                Vice President and Treasurer

                              US ECOLOGY, INC.

                              By/s/ James R. Baumgardner
                                ------------------------
                                James R. Baumgardner
                                Vice President and Treasurer

                              US ECOLOGY IDAHO, INC.

                              By/s/ James R. Baumgardner
                                ------------------------
                                James R. Baumgardner
                                Vice President and Treasurer

                                BANK'S ACCEPTANCE

          Accepted  and  effective  as  of  the 30th day of August, 2004, in the
State  of  Idaho.

                              WELLS FARGO BANK, NATIONAL ASSOCIATION

                              By/s/ Brian W. Cook
                                -----------------
                                Brian W. Cook, Vice President

<PAGE><PAGE>
                                                                     EXHIBIT 4.1

                       Incorporated Under The Laws Of The
                                State Of Delaware

      Number                                                    Shares

    -SPECIMEN-                                                -SPECIMEN-

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

                            BILL BARRETT CORPORATION

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

           $.001 Par Value Common Stock, 150,000,000 Shares Authorized

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

                          THIS CERTIFIES THAT SPECIMEN
                                              --------
                           is the registered holder of

                                    SPECIMEN
                                    --------
                  shares of the $.001 par value Common Stock of

            Bill Barrett Corporation, fully paid and non-assessable,
    transferable only on the books of the Corporation by the holder hereof in
   person or by Attorney upon surrender of this Certificate properly endorsed.

            IN WITNESS WHEREOF, the said Corporation has caused this
   Certificate to be signed by its duly authorized officers and its Corporate

  Seal to be hereunto affixed as of the __________ day of__________, A.D. 2004.

----------------------------------            ----------------------------------
   Francis B. Barron, Secretary                 Fredrick J. Barrett, President

<PAGE>

     For Value Received, ____________________________ hereby sells, assigns and
transfers unto _________________________________________________________________
______ Shares represented by the within Certificate, and does hereby irrevocably
constitute and appoint_____________________________________ Attorney to transfer
the said Shares on the books of the within named Corporation with full power of
substitution in the premises.

     Dated _______________ 20 _____

                                      __________________________________________
                                      Signature

                                      [NOTICE. THE SIGNATURE OF THIS ASSIGNMENT
                                      MUST CORRESPOND WITH THE NAME AS WRITTEN
                                      UPON THE FACE OF THE CERTIFICATE, IN EVERY
                                      PARTICULAR, WITHOUT ALTERATION OR
                                      ENLARGEMENT, OR ANY CHANGE WHATEVER.]

In presence of

______________________________________

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