X. Operations and Maintenance - Other

The differences in the operation and maintenance - other category are in purchased power, leased water rights, replenishment charges, uncollectibles, and other estimates. These differences are itemized in the following table.

YEAR 2003 YEAR 2004

(Dollars in Thousands)

Item	AVR	ORA	Difference	AVR	ORA	Difference
Purchased Power	$1,064	$1,237	($173)	$1,081	$1,257	($176)
Leased Water Rights/Assessments	359	402	(43)	378	424	(46)
Uncollectibles	48	48	0	59	51	8
Other	1,070	1,071	(1)	1,074	1,076	(2)
Total Differences			($217)			($216)

A. Purchased Power

AVR and ORA both used the current energy rates of Southern California Edison Company and Southwest Gas Company to calculate their individual expense estimates. Differences in estimates resulted solely from the use of different customer consumption estimates. AVR and ORA agreed that current energy rates should be applied to the consumption estimates being adopted in this proceeding. We concur.

B. Leased Water Rights & Assessments

AVR and ORA both used the current $70 acre-foot pumping cost to calculate their individual expense estimates. AVR and ORA agreed that the current $70 per acre-foot pumping cost should be applied to the consumption estimates being adopted in this proceeding. We concur.

C. Uncollectibles

AVR and ORA both used a .46% rate to calculate their individual estimates. Differences in estimates resulted solely from the use of different operating revenue estimates. The .46% rate should be applied to the operating revenue estimates being adopted in this proceeding.

D. Other

AVR and ORA agreed that $998,407 for test year 2003 and $998,251 for test year 2004 applicable to non-clearing accounts should be included in this category. Differences in estimates resulted solely from clearing account allocations based on different payroll, depreciation, and insurance estimates. AVR and ORA agreed that clearing account allocations should be based on the adopted payroll, depreciation, and insurance estimates. We concur.