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Treatment Plant Advisory Committee (TPAC)

Committee Duties

The Treatment Plant Advisory Committee (TPAC) is an advisory group to the City Councils of San José and Santa Clara. The two cities jointly administer the operations of the San José-Santa Clara Regional Wastewater Facility (Facility).

TPAC advises both San José and Santa Clara on operation, maintenance, repair, and improvement of the Facility, and the development and administration of related programs and policies. In addition, TPAC advises on administrative matters including amendments to contracts and agreements, selling interests in the Facility to anyone other than San José and Santa Clara, entering into contracts with anyone desiring to use the Facility on a rental or other basis, the type and amount of insurance to be purchased, and rental rates to be charged to “outside users” for use of the Facility.


TPAC was created in 1959 by the “Sewage Treatment Plant Agreement between San José and Santa Clara.” The Cities of San José and Santa Clara jointly own and operate the Facility under this master agreement. A total of seven cities and sanitary/sanitation districts discharge water to the Facility under a series of additional master agreements. San José is the administering agency for all of these, and the City Council is the final decision-making body. The cities which discharge to the Facility include San José, Santa Clara, Milpitas, Cupertino, Campbell, Los Gatos, Monte Sereno, and Saratoga.


TPAC meets regularly on the second Thursday of each month at 4:00 p.m. in Room T1734 at:

San José City Hall
200 E. Santa Clara St.

Special meetings are called as necessary by the TPAC Chair. TPAC meetings are subject to the Brown Act, and open to the public.

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