Fair Value of Financial Instruments: (Tables)

6 Months Ended

Jun. 30, 2015

GSWC

Fair value of financial instruments

Schedule of estimates of the fair value of long-term debt

The table below estimates the fair value of long-term debt held by GSWC. The fair values as of June 30, 2015 and December 31, 2014 have been determined using rates for similar financial instruments of the same duration utilizing Level 2 methods and assumptions. The interest rates used for the June 30, 2015 valuation increased as compared to December 31, 2014, decreasing the fair value of long-term debt as of June 30, 2015. Changes in the assumptions will produce differing results.

	June 30, 2015				December 31, 2014
(dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial liabilities:
Long-term debt—GSWC	$	325,921	$	388,236	$	326,090	$	417,057