Quito water is páramo water. Depending on who is counting, 85 to 90 percent of what runs from a tap in the Distrito Metropolitano began as rain and fog soaking into high, wet grassland above the treeline — on Antisana, on the Pichincha and Atacazo slopes, in the Pita headwaters under Cotopaxi and Sincholagua, and at Papallacta on the far side of the eastern cordillera. That grass and the cushion bogs under it hold the water and let it go slowly. The city drinks the release.
On a clear morning you can see one of those sponges from the south of the city: Antisana, white on top, a brown-gold skirt of grass below the snow. What you cannot see is that the water reaches you through four separate systems, built in different decades, that do not connect to each other. Roughly 2.7 million people (2022 census) draw about 8,500 liters a second through them. Which system you are on decides which páramo you drink — and which failure can reach your kitchen.
This is the first of five posts. It answers one question — what Quito depends on — and hands the rest forward: who depends on that water, what a páramo actually is, what happened on the one pipe in July 2025, and who already pays for the sponge. If you live here you carry most of this map already: the tanker truck on the corner, the pressure that drops in a dry August, the mountain over the shoulder of the city. What follows is the same knowledge with the numbers attached.
the sponge
A páramo is the wet grassland and cushion-wetland belt of the northern Andes, above the treeline and below the glaciers — from roughly the treeline up to the snow. Its soils are dark, deep and organic, and they behave like a sponge: they take fog and rain in, hold it, and release it slowly into streams through the dry months. That slow release is what keeps the rivers above the city running between rainy seasons.
Above Quito the sponge is not one place. It is Antisana's páramo and glacier feeding La Mica; the Alto Pita grasslands under Cotopaxi and Sincholagua; the slopes of Pichincha and Atacazo on the west; and the Cayambe-Coca páramos around Papallacta and Oyacachi to the east. Cattle compact it, burning and farming convert it — in the Cinto catchment on the western side, about 7,000 hectares went from páramo to something else in 13 years — and a warming climate is pulling the glaciers up the mountain. Antisana's glacier 15α lost 15 percent of its area between 1995 and 2012; modeled, glacier melt is about a fifth of the streamflow at the Antisana intakes. When the ice is gone, the grass is the whole buffer. Post three gives the sponge its own room.
four pipes that do not talk to each other
| system | which páramo | share of people served | what stands between the grass and you | how it fails |
|---|---|---|---|---|
| Papallacta Integrado | Cayambe-Coca páramos around Papallacta, Chalpi and the Oyacachi side — Napo province, Amazon slope | ~45% (Primicias, 2025) | Salve Faccha, Mogotes and Sucus reservoirs; Bellavista and Paluguillo plants; the north and eastern parishes, including Pifo and Tababela | An import from across the divide; oil pipelines run beside Laguna de Papallacta. Post four has the rest. |
| Pita–Puengasí | Pita river headwaters — Cotopaxi, Sincholagua, Alto Pita | ~27% | no reservoir; a river intake and about 40.8 km of open canal to the Puengasí plant; the centre, the south, Los Chillos | drought — in 2024 rationing reached 12 hours a day; Cotopaxi lahars have reached the Pita before (1877) |
| La Mica–Quito Sur | Antisana páramo and glacier | ~16–17% | La Mica reservoir (25 million m³ useful, in service since 2000; 1,500 L/s); El Troje plant; the south | one conduit — a landslide on it in July 2025 cut six parishes off for about two weeks |
| Conducciones Occidentales | Pichincha and Atacazo slopes | ~10% | small intakes on the western slopes; the northwest | fire and urban expansion on the slopes |
Minor systems fill the last 2 percent or so.
Two cautions on the numbers, because the sources do not agree and this post will not blend them for you. First, the páramo share of the city's water is 85 percent when EPMAPS says it (via Primicias) and about 90 percent when FONAG says it (via Expreso). Second, Papallacta's share is 45 percent in Primicias' 2025 reporting, 50 percent in Expreso, and a 2022 breakdown put Papallacta-to-Bellavista at 30 percent with the Pita at 25. Different years, and probably different denominators — people served versus volume delivered. Hold them as a range. Do not average them into one typical Quito.
The other thing the table says quietly: these four are not backups for each other. When the La Mica conduit broke, Papallacta water did not flow south. Each system's people drink their own sponge. That is the July 2025 lesson, and the reason "Quito ran out of water" is never quite true. A part of Quito does — and it is usually a part that has only one pipe.
the other side of the andes
Hold two things at once. The largest share of Quito's water is páramo water, and it is not the páramo you can see from town. Papallacta's intakes sit in Napo province, on the Amazon slope. Rain that would have run to the Quijos, the Napo and eventually the Atlantic is caught high on the eastern cordillera and carried west over the pass to a city that drains the other way — to the Machángara, the Guayllabamba, the Esmeraldas and the Pacific. Quito is an inter-basin importer. On the 2025 count, 45 percent of the city drinks the Amazon's headwaters and sends its wastewater toward the Pacific.
That is geography plus engineering. The water is still páramo water — same grass, same cushion bogs, the same protected massif. But it means the sponge Quito depends on is larger than the sponge Quito can see, and part of it sits outside the city's jurisdiction: on national-park land, and on land titled to the Kichwa Comuna Oyacachi, the upstream neighbor the city has paid since 2001, under an agreement that runs to 2049. The pipe that carries the water across the divide, and the ways it can fail, are post four.
the map has two directions
A map of what Quito depends on is half a map. The other half is who depends on Quito's sources, and the city's own emergency declaration already drew the first entry. On 9 July 2025, one landslide took out the La Mica conduit, and roughly 400,000 people in Guamaní, La Ecuatoriana, Chillogallo, Quitumbe, La Argelia and Turubamba went about fourteen days without tap water while taps in the rest of the city ran. Those six parishes did not depend on "Quito's water." They depended on Antisana, through one pipe.
The airport on the Paluguillo plant, the brewer and the bottler, the hydro plants downstream, and the neighbors who hold title to the páramo belong to post two. Here the point is only that the dependency runs both ways and does not stop at the ring road in either direction. Quito depends on grass in another province; six parishes depend on one mountain.
name the sponge, not the city
"Protect Quito's water" is a slogan. It asks everyone for everything and names nothing. Each of those sponges has a name, and some already have people on the grass. The Antisana grass has EPMAPS, which owns the conservation area above La Mica, and FONAG, which manages it. The Papallacta side sits inside Cayambe-Coca National Park, part of it on Oyacachi's land. And since 2000 part of what Quito pays for its water has gone to the páramo, through the water fund called FONAG — post five tells that story. That model has been copied 32 times across Latin America; Santa Fe's fund, born about thirteen years later, is the later cousin in the Santa Fe series, not the template. Nobody on that list is protecting "water." Each is watching a named place.
That is the whole argument of people don't care about nature. they care about theirs, and it is why your water is not water says to begin with the name of your source. Quito has four names. That is not a problem. It is four doors, and a ratepayer already stands in one of them.
One honest note on our own stage. Nothing in ensurance is named for Quito, Antisana or Papallacta today. The closest live page is the parent, northern-andean-paramo.ecoregion — the páramo belt that holds Antisana, Cayambe-Coca and the Pichincha slopes — and little money moves through it yet. FONAG and EPMAPS are the ones on the grass. If this grows here, it grows as infrastructure for them, not as a second fund.
frequently asked questions
where does quito water come from?
From páramo — high Andean wet grassland — through four separate supply systems. Papallacta Integrado (about 45% of people served, 2025 figure) draws Cayambe-Coca páramo water from the Amazon slope in Napo province. Pita–Puengasí (about 27%) takes the Pita river below Cotopaxi and Sincholagua, with no reservoir. La Mica–Quito Sur (about 16–17%) draws Antisana páramo and glacier melt through the La Mica reservoir. Conducciones Occidentales (about 10%) collects from the Pichincha and Atacazo slopes. EPMAPS puts the páramo share of the city's water at 85%; FONAG says about 90%.
what is a páramo?
A páramo is the belt of wet grassland and cushion wetlands in the northern Andes above the treeline and below the glaciers. Its deep organic soils absorb fog and rain and release them slowly, so streams keep running through dry months — which is why streams above Quito keep running through the dry months. Above Quito the páramos are on Antisana, in Cayambe-Coca around Papallacta, under Cotopaxi and Sincholagua at the Pita headwaters, and on the Pichincha and Atacazo slopes.
does quito drink amazon water?
Yes — about 45 percent by the 2025 count, 50 percent in other accounts. The Papallacta Integrado system, about 45% of people served in 2025 reporting and 50% in other accounts, captures páramo water in Napo province on the Amazon side of the continental divide and carries it west to the city. Quito itself drains to the Pacific through the Machángara and Guayllabamba rivers. The water is still páramo water; it is just páramo the city cannot see from town.
next steps
- Want the other half of the map? Who drinks Quito's water — and who else depends on it is post two.
- Want to know what the sponge actually is? A páramo is not water is post three.
- Want to see the living parent? northern-andean-paramo.ecoregion is the live agent for the páramo belt. Explore is where the rest of the named places live.
- Want the general rule? Your water is not water — start with the name of your source.