The Tanza Water District (TWD) is a Government Owned and Controlled Operation created by virtue of Sangguniang Bayan Resolution No. 10-A on March 24, 1988 of the Municipality of Tanza, Cavite in pursuance with Presidential Decree N. 198 otherwise known as the Provincial Water Utilities Act dated September 28, 1978, declaring a national policy, favoring local operation and control of water system, authorizing the formation of water districts and providing for the government and administration of such projects. On September 2, 1988 a Conditional Certificate of Conformance No. 358 was issued to the District by the Local Water Utilities Administration (LWUA).