Condensed Consolidated Statements of Income and Comprehensive Income (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
OPERATING REVENUE	$ 59,007	$ 54,128	$ 102,703	$ 94,539
OPERATING EXPENSE:
Purchased water	12,681	11,335	20,097	17,154
Power	1,373	1,584	2,387	2,728
Groundwater extraction charges	5,300	6,238	9,808	11,233
Other production costs	2,820	2,568	5,412	5,106
Total production costs	22,174	21,725	37,704	36,221
Administrative and general	9,658	8,639	19,294	17,627
Maintenance	3,476	3,289	6,524	6,065
Property taxes and other non-income taxes	2,123	2,060	4,210	3,763
Depreciation and amortization	7,792	7,070	15,586	14,181
Total operating expense	45,223	42,783	83,318	77,857
OPERATING INCOME	13,784	11,345	19,385	16,682
OTHER (EXPENSE) INCOME:
Interest on long-term debt	(4,235)	(3,636)	(8,491)	(7,258)
Mortgage and other interest expense	(447)	(569)	(922)	(1,069)
Loss on sale of utility property	0	0	(23)	0
Dividend income	60	327	120	654
Other, net	106	150	242	275
Income before income taxes	9,268	7,617	10,311	9,284
Provision for income taxes	3,817	3,101	4,250	3,783
NET INCOME	5,451	4,516	6,061	5,501
Other comprehensive income (loss):
Unrealized income (loss) on investment	48	(2,101)	29	(1,232)
Less: income taxes related to other comprehensive income (loss)	(20)	861	(12)	505
Other comprehensive income (loss), net	28	(1,240)	17	(727)
COMPREHENSIVE INCOME	$ 5,479	$ 3,276	$ 6,078	$ 4,774
EARNINGS PER SHARE
Basic	$ 0.29	$ 0.24	$ 0.33	$ 0.29
Diluted	$ 0.29	$ 0.24	$ 0.32	$ 0.29
DIVIDENDS PER SHARE	$ 0.17	$ 0.17	$ 0.34	$ 0.34
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic	18,577,226	18,528,497	18,573,701	18,523,794
Diluted	18,784,694	18,740,662	18,780,058	18,731,104