Pangasinan may have sufficient irrigation until 2027 palay season. LINGAYEN, Pangasinan — Pangasinan’s agricultural sector is expected to have sufficient irrigation until the second palay cropping season in 2027, with San Roque Dam’s water level in San Manuel at 283.21 meters above sea level as of Oct. 19. The available water supply will help farmers cope with the “Super El Niño” phenomenon, which is.