CONSOLIDATED STATEMENTS OF CASH FLOW (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash Flows From Operating Activities:
Net income	$ 13,465	$ 10,115
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	10,066	11,067
Provision for doubtful accounts	188	653
Deferred income taxes and investment tax credits	270	(2)
Stock-based compensation expense	661	542
Other - net	(172)	(140)
Changes in assets and liabilities:
Accounts receivable - customers	1,998	911
Unbilled revenue	1,625	(781)
Other accounts receivable	1,585	1,989
Receivable from the U.S. government	8,251	(5,110)
Materials and supplies	(1,862)	(1,727)
Prepayments and other current assets	140	(1,480)
Regulatory assets - supply cost balancing accounts	1,371	3,437
Costs and estimated earnings in excess of billings on uncompleted contracts	(5,080)	(1,362)
Other assets (including other regulatory assets)	(13,147)	(5,697)
Accounts payable	2,229	2,745
Income taxes receivable/payable	15,111	7,603
Billings in excess of costs and estimated earnings on uncompleted contracts	(9,870)	(1,154)
Accrued pension and other postretirement benefits	3,021	3,145
Other liabilities	1,155	1,836
Net cash provided	31,005	26,590
Cash Flows From Investing Activities:
Construction expenditures	(18,425)	(14,967)
Proceed from sale of property	12
Net cash used	(18,413)	(14,967)
Cash Flows From Financing Activities:
Proceeds from issuance of Common Shares and stock option exercises	625	1,403
Receipt of advances for and contributions in aid of construction	4,151	538
Refunds on advances for construction	(430)	(499)
Repayments of long-term debt	(22)	(65)
Net change in notes payable to banks		(2,000)
Dividends paid	(6,838)	(5,277)
Other - net	(770)	(480)
Net cash used	(3,284)	(6,380)
Net increase in cash and cash equivalents	9,308	5,243
Cash and cash equivalents, beginning of period	23,486	1,315
Cash and cash equivalents, end of period	32,794	6,558
GOLDEN STATE WATER COMPANY
Cash Flows From Operating Activities:
Net income	10,705	7,382
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	9,772	10,797
Provision for doubtful accounts	188	619
Deferred income taxes and investment tax credits	279	(5)
Stock-based compensation expense	400	341
Other - net	(159)	(174)
Changes in assets and liabilities:
Accounts receivable - customers	1,998	911
Unbilled revenue	1,625	(781)
Other accounts receivable	2,441	1,543
Materials and supplies	(80)	(77)
Prepayments and other current assets	544	(1,273)
Regulatory assets - supply cost balancing accounts	1,371	3,437
Other assets (including other regulatory assets)	(13,102)	(5,615)
Accounts payable	730	(2,633)
Inter-company receivable/payable	(2,822)	(502)
Income taxes receivable/payable from/to Parent	13,654	5,760
Accrued pension and other postretirement benefits	3,021	3,145
Other liabilities	808	1,614
Net cash provided	31,373	24,489
Cash Flows From Investing Activities:
Construction expenditures	(18,111)	(14,479)
Net cash used	(18,111)	(14,479)
Cash Flows From Financing Activities:
Receipt of advances for and contributions in aid of construction	4,151	538
Refunds on advances for construction	(430)	(499)
Repayments of long-term debt	(22)	(65)
Dividends paid	(6,800)	(5,000)
Other - net	(604)	(389)
Net cash used	(3,705)	(5,415)
Net increase in cash and cash equivalents	9,557	4,595
Cash and cash equivalents, beginning of period	22,578
Cash and cash equivalents, end of period	$ 32,135	$ 4,595