G.R. No. 61218 - Santos vs. Court of Appeals

In 1911, the Government of the Philippines sold Lot 4492 of the Santa Maria Pandi Friar Land Estate in Angat, Bulacan, covering 16,088 square meters, as evidenced by Sale Certificate No. 2892.
On December 9, 1929, Venancio de la Fuente assigned all his rights in the lot to Felix Tiongson through Assignment of Sales Certificate No. 2892.
The Government subsequently reacquired a portion amounting to 12,570 square meters for the construction of the Marungko Water Reservoir, leaving 3,518 square meters as the subject matter of further transactions.
On March 17, 1930, the Bureau of Lands issued Sales Certificate No. 2892-1 to Felix Tiongson for the remaining 3,518 square meters.

On December 16, 1942, Tiongson assigned his rights over the 3,518 square meter portion to Marcelino Bongco, who later transferred the same to Aurelio Santos on September 20, 1946.
A Deed of Sale was executed on April 26, 1948 in favor of Aurelio Santos over the 3,518 square meters, followed by an issuance of T.C.T. No. T-2743 on June 28, 1948.
In 1961, through a partition proceeding (Special Proceedings No. 1170) before the Court of First Instance of Bulacan, T.C.T. No. T-2743 was cancelled and replaced with T.C.T. No. T-30791, issued in the names of Aurelio Santos and his children (the petitioners).
On November 7, 1972, petitioners subsequently filed a petition seeking the cancellation of T.C.T. No. T-30791 and for the issuance of a new title containing the correct technical description and areas as certified by the Bureau of Lands.

The respondent, Republic of the Philippines, filed a complaint in the Court of First Instance of Bulacan (Civil Case No. SM-922) seeking:

Annulment of title over the disputed portion (12,570 square meters) of Lot No. 4492, known as the Marungko Water Reservoir.
Reversion of the said portion to the Government together with damages.

On August 11, 1978, the trial court issued a writ of preliminary mandatory injunction directing petitioners to

Allow the opening of two gates of the water dam.
Permit the utilization and/or repair of the existing canals for a free water flow from the reservoir.

Defendants (petitioners) later moved to dissolve the injunction positing that its purpose involved water rights — a matter under the exclusive jurisdiction of the National Water Resources Council pursuant to Presidential Decree No. 1067.
The Solicitor General opposed the motion, clarifying that the injunction was aimed solely at preserving the public’s use and enjoyment of water from the reservoir.
On December 17, 1979, the trial court enforced the injunction, ordering relevant authorities to comply and warning against noncompliance under pain of contempt.

Petitioners subsequently assailed the trial court’s order through a petition for certiorari, prohibition, and mandamus with preliminary injunction before the Court of Appeals, which dismissed the petition for lack of merit.
Motions for reconsideration filed by the petitioners were also denied on July 28, 1981 and May 31, 1982 respectively, leading to the present petition for review on certiorari.

Whether, despite the pendency of trial on the merits in the action for annulment of title and reversion, the trial court properly issued a writ of preliminary mandatory injunction that effectively deprived the registered owners of their right to use and enjoy the disputed portion of the property.

Consideration of whether the injunction was premature given the pending merits of the case.

Whether the trial court was justified in granting the enforcement of the injunction prior to the resolution of the pending motions to dismiss and dissolve the writ.

Evaluation of the appropriateness of issuing a provisional remedy while substantive issues remained unresolved.

Whether the trial court had jurisdiction to issue the injunction despite the argument that the dispute over water rights should fall exclusively within the purview of the National Water Resources Council under Article 88 of Presidential Decree No. 1067.

Analysis of the jurisdictional conflict between the regular courts and the Water Council concerning disputes over water appropriations and usage.