[ERNST & YOUNG LOGO] Edificio Omni Tel:(5541) 322-5222 Al. Dr. Carlos de Carvalho, 603 Fax:(5541) 322-6166 10o adner- Conj. 102 homepage:www.ey.com.br 80430-180-Curitiba PR- Brasil EXHIBIT 23.3 CONSENT OF INDEPENDENT AUDITORS We consent to the reference to our firm under the caption "Experts" and to the use of out report dated February 8, 2002, in the Registration Statement (Form F-1) and related Prospectus of Companhia de Saneamento do Parana- SANEPAR, filed on March 26, 2002 for the registration of its preferred shares. Ernst & Young Auditores Independentes S.C. /s/Marcos Antonio Quintanilha Marcos Antonio Quintanilha Partner Curitiba, Brazil April 03, 2002