The Company reports 2 identifiable segments: (i) water supply systems; and (ii) sewage collection systems.

	2005
	Water system	Sewage system	Consolidated
Gross revenue from sales and services	2,771,633	2,256,857	5,028,490
Gross sales revenue – wholesale revenues	241,209	-	241,209
Other sales and services	57,034	29,593	86,627
	3,069,876	2,286,450	5,356,326
Taxes on sales and services	(213,394)	(189,569)	(402,963)
Net revenue from sales and services	2,856,482	2,096,881	4,953,363
Cost of sales and services and operating expenses	(2,205,146)	(1,058,644)	(3,263,790)
Operating profit before financial expenses	651,336	1,038,237	1,689,573

	2004
	Water system	Sewage system	Consolidated
Gross revenue from sales and services	2,396,159	1,939,971	4,336,130
Gross sales revenue – wholesale revenues	217,378	-	217,378
Other sales and services	60,931	28,052	88,983
	2,674,468	1,968,023	4,642,491
Taxes on sales and services	(133,494)	(111,925)	(245,419)
Net revenue from sales and services	2,540,974	1,856,098	4,397,072
Cost of sales and services and operating expenses	(2,051,911)	(1,017,546)	(3,069,457)
Operating profit before financial expenses	489,063	838,552	1,327,615