1 Pricing Supplement No. 15 Filing under Rule 424(b)(3) Dated June 27, 1995 and June 28, 1995 Registration No. 33-51669 (To Prospectus dated January 12, 1994 as supplemented by the Prospectus Supplement dated January 19, 1994) $250,000,000 THE WASHINGTON WATER POWER COMPANY SECURED MEDIUM-TERM NOTES, SERIES B PRINCIPAL AMOUNT ($): $15,000,000 SUBJECT TO GENERAL REDEMPTION ORIGINAL ISSUE DATE: JUNE 30, 1995 (AT GENERAL REDEMPTION PRICES) STATED MATURITY DATE: JUNE 28, 2002 YES NO (X) INTEREST RATE (%): 6.61 INITIAL REDEMPTION DATE: N/A ISSUE PRICE (%): 100.00 REDEMPTION LIMITATION DATE: N/A SELLING AGENT'S COMMISSION (%): .600 INITIAL REDEMPTION PRICE (%): N/A NET PROCEEDS TO COMPANY (%): 99.400 REDUCTION PERCENTAGE: N/A FORM: BOOK-ENTRY (X) CERTIFICATED SUBJECT TO SPECIAL REDEMPTION (AT SPECIAL REDEMPTION PRICES) YES NO (X) INITIAL REDEMPTION PRICE: N/A REDUCTION PERCENTAGE: N/A USE OF PROCEEDS: A/S ADDITIONAL TERMS: N/A "N/A" as used herein means "Not Applicable", "A/S" as used herein means "As stated in the Prospectus referred to above". GOLDMAN, SACHS & CO. PAINEWEBBER INC. SMITH BARNEY INC.