INTRO: Emergency water supplies arrive in the Spanish port of Barcelona which is grappling with a severe drought. MOREINFO: Reservoirs in the region are only 25 percent full ahead of what's expected to be a blazing hot summer. And without rainfall in the weeks ahead, there are fears the city could endure its first cut in domestic water supplies in more than half a century. Darcy Lambton reports. SCRIPT: A tanker vessel arrives in the parched Spanish port of Barcelona. On board, 19 thousand tonnes of desperately needed fresh water. Like other parts of Spain, the top tourist destination is enduring chronic drought. Public fountains are empty and beach showers have been switched off. And without significant rainfall, locals face a summer threat of supply cuts. (SOUNDBITE) (Spanish) LOCAL RESIDENT, LUIS MARTINEZ, SAYING: "No, I hadn't seen anything like this in many many years, I actually think it's the first time. But I find perfectly understandable that we have to save...