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                                       FORM T-1

                          SECURITIES AND EXCHANGE COMMISSION
                               Washington, D.C.  20549

                               STATEMENT OF ELIGIBILITY
                      UNDER THE TRUST INDENTURE ACT OF 1939 OF A
                       CORPORATION DESIGNATED TO ACT AS TRUSTEE

                         CHECK IF AN APPLICATION TO DETERMINE
                         ELIGIBILITY OF A TRUSTEE PURSUANT TO
                           SECTION 305(b)(2)           |__|

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

                                 THE BANK OF NEW YORK
                 (Exact name of trustee as specified in its charter)


New York                                            13-5160382
(State of incorporation                             (I.R.S. employer
if not a U.S. national bank)                        identification no.)

48 Wall Street, New York, N.Y.                      10286
(Address of principal executive offices)            (Zip code)

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

                          PUBLIC SERVICE COMPANY OF COLORADO
                 (Exact name of obligor as specified in its charter)


Colorado                                            84-0296600
(State or other jurisdiction of                     (I.R.S. employer
incorporation or organization)                      identification no.)

1225 17th Street
Denver, Colorado                                    80202
(Address of principal executive offices)            (Zip code)

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

                                Senior Debt Securities
                         (Title of the indenture securities)


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1.   GENERAL INFORMATION.  FURNISH THE FOLLOWING INFORMATION AS TO THE TRUSTEE:

     (a)  NAME AND ADDRESS OF EACH EXAMINING OR SUPERVISING AUTHORITY TO WHICH
          IT IS SUBJECT.
          
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                  Name                                        Address
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     Superintendent of Banks of the State of     2 Rector Street, New York, N.Y.
     New York                                    10006, and Albany, N.Y. 12203

     Federal Reserve Bank of New York            33 Liberty Plaza, New York,
                                                 N.Y. 10045

     Federal Deposit Insurance Corporation       Washington, D.C. 20429

     New York Clearing House Association         New York, New York 10005

     (b)  WHETHER IT IS AUTHORIZED TO EXERCISE CORPORATE TRUST POWERS.

     Yes.

2.   AFFILIATIONS WITH OBLIGOR.
     
     IF THE OBLIGOR IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH SUCH
     AFFILIATION. 

     None.

16.  LIST OF EXHIBITS. 

     EXHIBITS IDENTIFIED IN PARENTHESES BELOW, ON FILE WITH THE COMMISSION, ARE
     INCORPORATED HEREIN BY REFERENCE AS AN EXHIBIT HERETO, PURSUANT TO RULE
     7A-29 UNDER THE TRUST INDENTURE ACT OF 1939 (THE "ACT") AND 17 C.F.R.
     229.10(d).

     1.   A copy of the Organization Certificate of The Bank of New York
          (formerly Irving Trust Company) as now in effect, which contains the
          authority to commence business and a grant of powers to exercise
          corporate trust powers.  (Exhibit 1 to Amendment No. 1 to Form T-1
          filed with Registration Statement No. 33-6215, Exhibits 1a and 1b to
          Form T-1 filed with Registration Statement No. 33-21672 and Exhibit 1
          to Form T-1 filed with Registration Statement No. 33-29637.)

     4.   A copy of the existing By-laws of the Trustee.  (Exhibit 4 to Form T-1
          filed with Registration Statement No. 33-31019.)

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     6.   The consent of the Trustee required by Section 321(b) of the Act. 
          (Exhibit 6 to Form T-1 filed with Registration Statement No.
          33-44051.)

     7.   A copy of the latest report of condition of the Trustee published
          pursuant to law or to the requirements of its supervising or examining
          authority.



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                                      SIGNATURE

     Pursuant to the requirements of the Act, the Trustee, The Bank of New York,
a corporation organized and existing under the laws of the State of New York,
has duly caused this statement of eligibility to be signed on its behalf by the
undersigned, thereunto duly authorized, all in The City of New York, and State
of New York, on the 4th day of March, 1998.


                                     THE BANK OF NEW YORK



                                     By:  /s/ James W.P. Hall   
                                          ----------------------------------
                                          Name:  James W.P. Hall
                                          Title: Vice President


                                                 EXHIBIT 7
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         Consolidated Report of Condition of
                THE BANK OF NEW YORK
       of 48 Wall Street, New York, N.Y. 10286

   And Foreign and Domestic Subsidiaries, a member of 
the Federal Reserve System, at the close of business 
September 30, 1997, published in accordance with a call 
made by the Federal Reserve Bank of this District pursuant 
to the provisions of the Federal Reserve Act.


                                       Dollar Amounts
ASSETS                                  in Thousands
                                     
Cash and balances due from depos-
 itory institutions:
  Noninterest-bearing balances and
   currency and coin .................  $ 5,004,638
  Interest-bearing balances ..........    1,271,514
Securities:
  Held-to-maturity securities ........    1,105,782
  Available-for-sale securities ......    3,164,271
Federal funds sold and Securities pur-
 chased under agreements to resell....    5,723,829
Loans and lease financing
 receivables:
  Loans and leases, net of unearned
   income.............................   34,916,196
  LESS: Allowance for loan and
   lease losses.......................      581,177
  LESS: Allocated transfer risk
   reserve............................          429
  Loans and leases, net of unearned
   income, allowance, and reserve.....   34,334,590
Assets held in trading accounts ......    2,035,284
Premises and fixed assets (including
 capitalized leases)..................      671,664
Other real estate owned ..............       13,306
Investments in unconsolidated
 subsidiaries and associated
 companies............................      210,685
Customers' liability to this bank on
 acceptances outstanding..............    1,463,446
Intangible assets.....................      753,190
Other assets..........................    1,784,796
                                        -----------
Total assets..........................  $57,536,995
                                        -----------
                                        -----------
LIABILITIES
Deposits:
  In domestic offices.................  $27,270,824
  Noninterest-bearing.................   12,160,977
  Interest-bearing....................   15,109,847
  In foreign offices, Edge and
   Agreement subsidiaries, and IBFs...   14,687,806
  Noninterest-bearing.................      657,479
  Interest-bearing....................   14,030,327
Federal funds purchased and Securities
 sold under agreements to repurchase..    1,946,099
Demand notes issued to the U.S.
 Treasury.............................      283,793
Trading liabilities ..................    1,553,539
Other borrowed money:
  With remaining maturity of one year
   or less............................    2,245,014
  With remaining maturity of more than
   one year through three years.......            0
  With remaining maturity of more than
   three years........................       45,664
Bank's liability on acceptances exe-
 cuted and outstanding................    1,473,588
Subordinated notes and debentures.....    1,018,940
Other liabilities.....................    2,193,031
                                        -----------
Total liabilities.....................   52,718,298
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EQUITY CAPITAL
Common stock..........................    1,135,284
Surplus...............................      731,319
Undivided profits and capital
 reserves.............................    2,943,008
Net unrealized holding gains
 (losses) on available-for-sale
 securities...........................       25,428
Cumulative foreign currency transla-
 tion adjustments.....................      (16,342)
                                        -----------
Total equity capital .................    4,818,697
                                        -----------
Total liabilities and equity
 capital..............................  $57,536,995
                                        -----------
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   I, Robert E. Keilman, Senior Vice President and 
Comptroller of the above-named bank do hereby declare 
that this Report of Condition has been prepared in 
conformance with the instructions issued by the Board of 
Governors of the Federal Reserve System and is true to 
the best of my knowledge and belief.

                                       Robert E. Keilman

   We, the undersigned directors, attest to the 
correctness of this Report of Condition and declare that 
it has been examined by us and to the best of our 
knowledge and belief has been prepared in conformance 
with the instructions issued by the Board of Governors of 
the Federal Reserve System and is true and correct.

                      
          J. Carter Bacot     )
          Thomas A. Renyi     )     Directors
          Alan R. Griffith    )
                              
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