The General Mariano Alvarez Water District (GMAWD) was created in 1988 by virtue of SB Resolution No. 30-88 (dated May 24, 1988) and was issued Conditional Certificate of Conformance (CCC No. 393) by LWUA in April 14, 1989. The Board of Directors upon its creation were Concepcion C. Iglesias, Danilo L. Tuatis., Jesus R. Villamartin, Pablo P. Garachico and Engineer Cesario R. Mullet with Mr. Sabrino P. Aranda, General Manager.

The municipality of General Mariano Alvarez (GMA) is situated approximately 42km south of Manila in the povince of Cavite. GMA Water District covers a service area of approximately 9.4 square kilometers, and contains twenty seven (27) barangays. The service area is generally residentials and some commercial enterprises.

GMAWD took over the ownership, management and operation of GMA water supply system in 1991 by virtue of the Deed of Donation of six (6) deep wells and appurtenances of the NHA in favor of GMAWD.