MX-G-03: Mexican Water Governance — Scarcity, Concessions, and the Crisis of the 2020s (1992–2026)

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1. Key Takeaways

Mexican water governance rests on a hybrid that the 1992 Ley de Aguas Nacionales (LAN) — a Salinas-era companion to the NAFTA-preparation reform wave — built atop Article 27 of the 1917 Constitution: water is the property of the nation, but the right to use it is allocated through long-term administrative concessions granted by the Comisión Nacional del Agua (CONAGUA) and recorded in a public rights registry (REPDA). The architecture was designed for an era of expanding supply and agricultural modernisation; three decades later its defining pathology is over-allocation — concessioned volumes that exceed renewable availability in a large share of the country's aquifers and basins [TBD-VERIFY: the current count of officially over-exploited aquifers, commonly cited in the range of 100–115 of roughly 650 administrative aquifers]. The 2020s water crisis is therefore not primarily a hydrological accident but the maturation of a paper-rights system that promised more water than nature delivers.
The scarcity is geographically inverted against the economy. Roughly two-thirds of Mexico's renewable water falls in the south-southeast, where poverty is concentrated and economic demand is thin; the arid and semi-arid north and centre — home to the bulk of population, irrigated agriculture, manufacturing, and the nearshoring boom — survive on the remaining third [TBD-VERIFY: precise regional water-availability and GDP shares]. This inversion makes water the silent constraint on nearly every other policy domain documented in this corpus: the USMCA-era industrial recruitment of the north (MX-D-06, MX-O-01), the agro-export model, the urban governability of the Valley of Mexico, and the bilateral relationship with the United States through the 1944 water treaty (MX-E-02).
The 2020s delivered three watershed scarcity events that moved water from technical to front-page politics. The September 2020 La Boquilla confrontation in Chihuahua — farmers seizing a federal dam to block releases owed to the United States under the 1944 treaty, the National Guard deployed, and a protester, Jessica Silva, shot dead [TBD-VERIFY: circumstances and judicial outcome of the killing] — was the first armed water conflict of the modern era. The Monterrey emergency of mid-2022 — Mexico's richest metropolitan area rationing piped water to a few hours a day as its reservoirs approached exhaustion — was the watershed urban crisis. The 2024 Cutzamala "day zero" scare — the reservoir system supplying a quarter of the Valley of Mexico falling to historic lows during the 2022–2024 drought cycle [TBD-VERIFY: minimum storage percentage and the contested "day zero" date projections] — placed the capital itself inside the scarcity frontier.
The 1944 US–Mexico Water Treaty has become a recurring bilateral flashpoint and a domestic-federalism wound. The treaty obliges Mexico to deliver an average of 350,000 acre-feet per year (1.75 million acre-feet per five-year cycle) from the Rio Grande tributaries, against larger US Colorado River deliveries to Mexico; northern drought has made the Mexican obligation politically explosive in Chihuahua and Tamaulipas. The 2015–2020 cycle was met only through last-minute reservoir transfers after the La Boquilla violence; the 2020–2025 cycle ran a historic deficit that the second Trump administration escalated into explicit tariff-and-sanctions threats in 2025, extracting Mexican delivery commitments under duress [TBD-VERIFY: the final 2025 cycle accounting and the terms of the deliveries agreement — cross-reference the MX-E-02 treatment of the water file inside the tariff confrontation].
A distinct 2020s conflict family pits communities against industrial and commercial extraction. The March 2020 Mexicali consulta that cancelled Constellation Brands' two-thirds-built brewery [TBD-VERIFY: vote share and plant-completion percentage] established that a presidentially convened local vote could extinguish a billion-dollar investment on water grounds. The 2021–2022 occupation of the Bonafont (Danone) bottling plant in Puebla by Nahua communities, the agro-export "virtual water" debates around avocado and berry expansion, and the long Yaqui struggle over the Independencia aqueduct in Sonora — answered by AMLO's Plan de Justicia Yaqui, including a formal apology and a water-restitution commitment [TBD-VERIFY: implementation status] — together mark the emergence of water as a frame for community, indigenous, and anti-corporate mobilisation.
The policy-response ledger is dominated by a fourteen-year legislative failure. The February 2012 constitutional amendment wrote a human right to water and sanitation into Article 4 and ordered Congress to pass a Ley General de Aguas within 360 days; as of 2026 no such general law had been promulgated for over a decade — a 2015 attempt (the "Ley Korenfeld/Pichardo") collapsed under "privatisation" protests, and the civil-society Agua para Todos initiative never reached the floor — until the Sheinbaum government finally forced the file in 2024–2026 [TBD-VERIFY: the precise legislative status of the Sheinbaum water-law package as of mid-2026]. The gap meant that the 1992 concession law, designed before the human-right amendment existed, continued to govern allocation throughout the crisis decade.
The Sheinbaum government has made water a signature reform domain — a natural emphasis for a president whose scientific career included environmental engineering and who governed Mexico City through its own water stress. The November 2024 Plan Nacional Hídrico combined irrigation tecnificación to recover agricultural volumes, strategic infrastructure projects, a national agreement with agricultural concession-holders to return unused volumes, and — most structurally — a legislative initiative to end the de facto private market in concessions: prohibiting the transfer of water concessions between private parties, returning unused rights to the nation, and criminalising the huachicoleo de agua (water theft) [TBD-VERIFY: the contents and passage status of the new Ley General de Aguas and the LAN reform, including the late-2025 farmer protests that forced amendments]. Whether this amounts to a re-foundation of the 1992 architecture or a partial patch is the central open question of the document.
The infrastructure ledger compounds the allocation failure: urban distribution networks lose on the order of 40 per cent of the water they carry [TBD-VERIFY: the national leakage estimate]; barely half of collected municipal wastewater is treated, and only a small fraction is reused [TBD-VERIFY: treatment and reuse percentages]; agriculture — roughly three-quarters of consumptive use [TBD-VERIFY: the canonical ~76 per cent figure] — irrigates predominantly by gravity flood methods with large conveyance losses; and desalination remains marginal. Mexico's crisis is thus simultaneously one of over-allocation, under-investment, and under-pricing — water tariffs and extraction fees that cover neither operating costs nor scarcity value, administered by roughly 2,500 municipal utilities (organismos operadores) most of which are financially and technically weak.
The nearshoring boom collides directly with northern scarcity, making water the test of whether Mexico's growth model is physically sustainable. Nuevo León recruited Tesla's gigafactory and a wave of industrial investment in the same years its reservoirs ran dry; data-centre and semiconductor siting decisions in Querétaro, Nuevo León, and the Bajío now confront explicit water vetoes [TBD-VERIFY: specific siting episodes]; and the agro-export complex sells what critics call "virtual water" — embedded in berries, avocados, beer, and pecans — out of basins already in deficit. The comparative literature places Mexico between Chile's pure water-market model (whose constitutional crisis 2019–2023 is the cautionary neighbour experiment) and the Israeli/Singaporean reuse-and-pricing models that Mexican policy invokes but has not financed. The 2030s question is whether water becomes the binding constraint that disciplines — or simply halts — the northern growth model.

2. The 1992 Architecture — the Ley de Aguas Nacionales, CONAGUA, and the Concession System

The constitutional foundation of Mexican water governance predates the modern law by three-quarters of a century. Article 27 of the 1917 Constitution declared the waters within national territory — rivers, lakes, lagoons, and (by later interpretation and amendment) groundwater — the property of the nation, alongside land and subsoil resources. The same article that grounded the oil expropriation of 1938 and the ejido land regime thus grounded water: private parties could not own national waters, only use them under titles granted by the federal executive. For most of the twentieth century this allocation function was exercised through a hydraulic-development state — the Secretaría de Recursos Hidráulicos and its successors — whose mission was expansion: dams, irrigation districts, and urban supply systems built in the high-modernist mode, with allocation following construction rather than constraining it.

The modern institutional architecture dates from the Salinas sexenio (1988–1994), the same reform wave that produced NAFTA, the ejido reform, and the bank reprivatisation (the broader Salinas record is documented at MX-H-PRES-06; the macroeconomic denouement at MX-K-01). The Comisión Nacional del Agua (CONAGUA) was created by decree in January 1989 as the single federal water authority — initially within the agriculture ministry, later (from 1994, consolidated in the 2000s) within the environment ministry SEMARNAT — concentrating in one órgano desconcentrado the functions of water-rights administration, river-basin management, national hydraulic infrastructure, technical standard-setting, and the national meteorological service. CONAGUA's hybrid character — simultaneously regulator, allocator, infrastructure builder, and drought manager — is itself a standing governance critique: the agency that grants rights also polices them, and the agency that polices extraction also depends politically on the sectors it polices.

The Ley de Aguas Nacionales, promulgated on 1 December 1992, supplied the allocation mechanism. Its core instrument is the concession (for private and social users) or assignment (asignación, for public urban utilities): an administrative title granting the right to extract a specified annual volume from a specified surface or groundwater source for a term of five to thirty years, renewable, registered in the Registro Público de Derechos de Agua (REPDA) created by the same law. Critically for everything that followed, the law made concessions transmissible: titles could be transferred between parties — in some cases with simple registration, in others with CONAGUA authorisation — creating a regulated quasi-market in water rights without ever formally privatising the resource. The design intent, congruent with the era's reform economics and with World Bank advice, was efficiency through security and tradability: give users firm, registered, long-term rights and let voluntary transfers move water toward higher-value uses. The 2004 reform of the LAN layered onto this a basin-council (consejo de cuenca) architecture of stakeholder governance and strengthened the basin-organisation deconcentration of CONAGUA, but left the concession core intact.

Two further Salinas-era moves completed the architecture. First, the irrigation-district transfer programme (from 1989 through the 1990s) devolved the operation and maintenance of the great federal irrigation districts — the hydraulic patrimony of the post-revolutionary state, concentrated in the north and northwest — to user associations (asociaciones de usuarios) and limited-liability companies of users. The transfer, internationally praised at the time as a model of participatory irrigation management, relieved the federal budget of operating costs but also entrenched organised irrigator associations as powerful corporate actors in basin politics — the actors who would, in Chihuahua in 2020, physically contest federal control of "their" dams. Second, urban water supply was confirmed as a municipal responsibility under Article 115 of the Constitution (reformed 1983, ratified in practice through the 1990s), fragmenting retail water service across roughly 2,500 organismos operadores whose tariffs are set in politicised state and municipal processes — the structural root of the chronic under-pricing and under-investment examined in §5.

The pathology that defines the system's next three decades was built in at the start: over-allocation. In the 1990s and 2000s, CONAGUA — under regularisation drives, agricultural-policy pressure, and successive decrees inviting informal users to register — issued concessions far faster than it measured availability. Registered rights came to exceed renewable recharge in basin after basin; in the groundwater domain, where enforcement is hardest, the gap became structural. Of Mexico's roughly 650 administrative aquifers, the number officially classified as over-exploited (extraction exceeding recharge) rose from around 32 in 1975 to on the order of 100–115 by the 2010s and 2020s [TBD-VERIFY: CONAGUA's current over-exploited aquifer count and the share of national groundwater extraction drawn from over-exploited aquifers, often cited at well over half]. The instruments meant to check this — vedas (extraction bans), reservas (reserved volumes), and reglamentos (basin regulations) — were unevenly decreed, poorly enforced, and perversely circumvented: a veda prohibits new concessions but leaves existing paper rights untouched, and a thriving informal market in drilling, clandestine wells, and title transfers grew up around the formal registry. Estimates of clandestine extraction and of concession volumes exceeding sustainable yield vary widely [TBD-VERIFY: credible national estimates of unregistered extraction], but the directional fact is uncontested in the technical literature: by the 2010s, Mexico's water economy was running on overdraft, with the REPDA recording promises the hydrology could not keep.

A final feature deserves emphasis because it shapes the 2020s reform debate: the 1992 law embodies a water-as-input philosophy. Its categories are users, volumes, and titles; its silences are ecosystems (environmental flows entered Mexican norms only later and weakly), drinking-water priority (formal in principle, unenforced in allocation practice), and climate variability (concession volumes are fixed nominal quantities, not shares of fluctuating availability). When the 2012 constitutional reform declared water a human right (§5), it grafted a rights logic onto an allocation machine built for a different purpose — and the fourteen-year failure to pass the implementing general law left the graft unhealed through the entire crisis decade.

3. The Scarcity Geography — the North–South Inversion, the Sinking Capital, and the 2022–2024 Drought Cycle

The elemental fact of Mexican water is maldistribution in space and time. The south and southeast — Chiapas, Tabasco, Veracruz, Oaxaca, the Usumacinta and Grijalva basins — receive the large majority of national runoff; the north, the centre-north plateau, and the Baja peninsula are arid to semi-arid, with rainfall concentrated in a short summer season and subject to multi-year drought cycles intensified by climate change. Against this hydrology stands the economic geography built over the NAFTA generation: the manufacturing-export complex of the border states and Monterrey, the irrigated agro-export districts of Sonora, Sinaloa, Chihuahua, Guanajuato, and Michoacán, and the megacity of the Valley of Mexico — almost all of it located where the water is not. The standard summary — roughly two-thirds of the water where a fraction of the people and product are; the economy and population concentrated where availability per capita approaches stress thresholds [TBD-VERIFY: precise regional shares of runoff, population, and GDP] — makes Mexico's the canonical case of a national economy developed against its own hydrological map. Per-capita renewable availability nationally has fallen from on the order of 10,000 cubic metres per year in 1960 to under 4,000 by the 2020s, with the centre-north far below that average [TBD-VERIFY: current per-capita availability figures by hydrological region].

The Valley of Mexico is the geography's most theatrical case. Mexico City sits on the drained bed of the lake system the Mexica built their capital upon; the metropolis of more than 21 million extracts the majority of its supply from the aquifer beneath it, drawing it down faster than recharge and causing land subsidence that in parts of the eastern city has proceeded at tens of centimetres per year — cracking buildings, breaking the very water mains and drainage works the city depends on, and progressively destroying the gravity gradients of its sewerage [TBD-VERIFY: current subsidence rates, commonly cited up to ~40–50 cm/year in the worst-affected zones]. The balance arrives over the mountains: the Sistema Cutzamala, the 1970s–1990s engineering epic that pumps water roughly 1,100 metres uphill across more than 100 kilometres from dams in Michoacán and Mexico State, supplying on the order of a quarter of the Valley's consumption [TBD-VERIFY: Cutzamala share of metropolitan supply, cited between 20 and 30 per cent]. The system embodies the high-modernist solution at its limit: enormous energy cost, source-basin communities (notably Mazahua communities around Villa Victoria and Valle de Bravo) who watch their water exported while lacking reliable service themselves, and total exposure to interannual rainfall variation in a small catchment.

The northern aquifer drawdown is less visible and more consequential. In Chihuahua, pecan, alfalfa, and dairy-forage expansion has mined the state's aquifers — many under formal veda — through both concessioned and clandestine wells; in Guanajuato and the Bajío, the vegetable-export and broader agro-industrial complex has driven water tables down by metres per year in places, deepening wells beyond the reach of smallholders and drawing up water with rising arsenic and fluoride content [TBD-VERIFY: representative drawdown rates for the Chihuahua and Guanajuato hotspot aquifers]. La Laguna (the Torreón–Gómez Palacio conurbation spanning Coahuila and Durango) presents the starkest public-health expression: dairy-driven overdraft of the principal aquifer has concentrated naturally occurring arsenic in drinking supplies — the problem AMLO's Agua Saludable para La Laguna project (§5) was built to bypass. Sonora's Yaqui and Mayo valleys, Baja California's Mexicali valley dependent on the Colorado, and the citrus-and-sugar districts of Tamaulipas complete a northern arc in which nearly every major agricultural aquifer or surface system is fully or over-committed.

Onto this structural picture the 2020s superimposed a drought cycle of historic severity. La Niña conditions across 2020–2023, followed by a punishing 2023–2024 El Niño year of record heat, produced by mid-2024 a situation in which a large majority of national territory was in drought and dozens of major reservoirs stood below a quarter of capacity [TBD-VERIFY: the peak national drought-extent percentage from the Monitor de Sequía and the reservoir statistics]. Two urban emergencies defined the cycle politically.

The first was Monterrey, 2022 — the watershed urban water crisis of modern Mexico. Nuevo León's capital, the country's richest metropolis and the flagship of the nearshoring boom, depends on three reservoirs (La Boca, Cerro Prieto, El Cuchillo) plus groundwater; by mid-2022 Cerro Prieto and La Boca had fallen to low single digits of capacity [TBD-VERIFY: minimum storage percentages]. From February 2022 the state declared emergency; from June 2022 the utility Agua y Drenaje de Monterrey imposed rationing that reduced piped supply for millions of residents to a few hours per day on a rotating schedule, with tanker trucks (pipas) and standpipes serving whole districts — scenes of queueing for water in a city of global-brand factories that ran continuously on their own concessions and wells, a juxtaposition that made industrial water privilege a national political issue. The federal-state response combined emergency wells, cloud seeding of contested efficacy, negotiated "loans" of water from agricultural and industrial concession-holders, and the crash construction of the El Cuchillo II aqueduct — completed in roughly a year and inaugurated in 2023 [TBD-VERIFY: completion date and capacity] — alongside the longer-mooted Libertad dam. Tropical storms in late August 2022 refilled the system and ended the acute phase, but the episode reset the politics: Nuevo León's subsequent industrial recruitment, including the Tesla announcement six months later (§6), would proceed under permanent public scrutiny of its water arithmetic.

The second was the Cutzamala "day zero" scare of 2024. The same drought cycle drove the Cutzamala system's combined storage to historic lows — falling through the winter of 2023–2024 toward the mid-twenties in percentage terms [TBD-VERIFY: the minimum storage level, reported around 25–30 per cent in the first half of 2024] — forcing CONAGUA and the Mexico City and Mexico State governments into successive reductions of the flow delivered to the Valley. Press and some analysts circulated projections of a "day zero" on which the system could cease delivering — dates in mid-2024 that officials disputed as alarmist while nonetheless cutting allocations [TBD-VERIFY: the provenance of the day-zero projections and the official rebuttals]. The scare coincided with the 2024 presidential campaign, put tandeo (rotational supply scheduling) and the eastern boroughs' chronic intermittency on the front pages, and handed the incoming Sheinbaum government — which had managed the city side of the problem as CDMX head of government 2018–2023 — an unavoidable mandate. The 2024 summer rains, arriving late but heavy, lifted the system off its lows; the structural deficit of the Valley, extracting roughly double its sustainable yield, remained [TBD-VERIFY: Valley of Mexico extraction-to-recharge ratio].

Climate projection compounds every element of this geography: the consensus scenarios for Mexico indicate higher temperatures, greater evaporative demand, more variable precipitation, and intensified drought frequency in precisely the basins already over-committed [TBD-VERIFY: headline projections from the national climate-change communications]. The scarcity geography is therefore not a static backdrop but a closing vice — which is what turned the allocation conflicts of the 2020s, examined next, from administrative disputes into physical confrontations.

4. The Conflict Map — La Boquilla and the 1944 Treaty, the Industrial-Extraction Battles, and the Community Water Defences

4.1 The 2020 Chihuahua Water War and the 1944 Treaty's Politics

The Treaty on Utilization of Waters of the Colorado and Tijuana Rivers and of the Rio Grande, signed 3 February 1944, is among the most durable instruments of the bilateral relationship and, since the 2010s, one of its most stressed. Its bargain is asymmetric in both directions: the United States delivers to Mexico 1.5 million acre-feet per year of Colorado River water (the lifeline of the Mexicali valley and Tijuana), while Mexico delivers to the United States one-third of the flow of six named Rio Grande tributaries — principally the Río Conchos system rising in Chihuahua — guaranteed at not less than an average of 350,000 acre-feet per year measured over five-year cycles (1.75 million acre-feet per cycle), with shortfalls in one cycle rolled into the next under specified drought provisions. The International Boundary and Water Commission (IBWC/CILA) administers the accounting. For half a century the arrangement worked because the Conchos basin usually had water to spare; from the 1990s drought cycles onward, Mexico repeatedly entered the final years of a cycle in arrears, producing the "water debt" crises of 1997–2002, 2015–2020, and 2020–2025, each more politically combustible than the last.

The 2015–2020 cycle produced the violence. By 2020 Mexico was far behind on deliveries with the 24 October cycle deadline approaching, and the AMLO government — anxious, in the first year of the USMCA and a US election season, to deny Washington any treaty grievance — ordered CONAGUA to release water from Chihuahua's reservoirs, above all La Boquilla on the Conchos, the irrigation lifeline of the state's agricultural heartland. Chihuahua's farmers — organised through the irrigation-association structures the 1990s transfers had empowered (§2), and backed by the PAN state government of Governor Javier Corral in open confrontation with the federal government — physically resisted. Through the spring and summer of 2020 protesters blocked railways, burned vehicles, and confronted National Guard detachments at dams; on 8 September 2020 thousands of farmers stormed and seized La Boquilla itself, expelling the National Guard from the dam and closing its release valves. That night, National Guard personnel fired on a vehicle in nearby Delicias, killing Jessica Silva and wounding her husband Jaime Torres, both farmers returning from the protests [TBD-VERIFY: the precise circumstances, the federal investigation's findings, and the judicial outcome for the Guard members charged]. She became the conflict's emblem — the first fatality of a Mexican "water war" in the modern era.

The denouement sharpened every fault line. AMLO framed the protesters as manipulated by PAN politicians and caciques defending outsized concessions; Chihuahua framed the federal government as draining the state's future to pay a foreign debt. The cycle obligation was ultimately met on paper days before the deadline through a negotiated instrument: Mexico transferred to the United States its stored ownership shares in the international Amistad and Falcon reservoirs rather than physically releasing further Conchos water [TBD-VERIFY: the precise terms of the October 2020 IBWC arrangement]. La Boquilla remained, politically, in the farmers' hands — federal authority over the dam was not forcibly reasserted — establishing a precedent of effective local nullification that haunts every subsequent treaty cycle.

The 2020–2025 cycle was worse hydrologically and coincided with the second Trump administration. Persistent Conchos-basin drought left Mexico, by 2024, facing the largest end-of-cycle deficit in the treaty's history — well over a million acre-feet [TBD-VERIFY: the deficit figure entering 2025] — while Texas agricultural interests escalated: the Rio Grande Valley's last sugar mill closed in 2024 citing Mexican non-delivery, and Texas politicians demanded linkage of water to trade and migration files. In spring 2025 President Trump made the linkage explicit, publicly threatening tariffs and other sanctions over the water debt — folding the treaty into the broader coercive-bargaining repertoire documented at MX-E-02 — and the Sheinbaum government responded with negotiated commitments to immediate transfers from international reservoirs, additional deliveries from named tributaries through the cycle's end in October 2025, and consultation mechanisms for the next cycle [TBD-VERIFY: the terms and fulfilment of the 2025 deliveries understanding, the final cycle accounting at the October 2025 close, and the domestic compensation offered to Chihuahua and Tamaulipas irrigators]. The structural reality is unchanged and worsening: the treaty assumes a Conchos that climate change is shrinking, and every future cycle re-stages the same triangle — Washington's demands, the northern irrigators' physical control of the dams, and a federal government caught between treaty compliance and domestic order. Renegotiation or supplementary minutes to the treaty, long taboo, entered serious policy discussion in the mid-2020s (§7).

4.2 The Industrial-Extraction Battles — Constellation Brands, Bonafont, and the Agro-Export Thirst

A second conflict family contests not federal releases but corporate concessions. Its founding episode is the Constellation Brands cancellation. The US beverage company had since 2016 been building a brewery in Mexicali, Baja California — a roughly US$1.4 billion plant, reportedly around 65–75 per cent complete by 2020 [TBD-VERIFY: investment and completion figures] — to brew Corona and Modelo for the US market (Constellation holds the US rights to those brands) using water from the Colorado-dependent Mexicali aquifer. Local activists, organised as Mexicali Resiste and allied groups, had fought the plant for years as an export of the valley's water in beer form. In March 2020 the AMLO government convened a consulta pública — one of the president's signature participatory instruments, legally informal and procedurally criticised — in which roughly three-quarters of the approximately 36,000 votes cast went against the plant [TBD-VERIFY: the precise vote share and turnout]; AMLO declared the permits would not proceed, cancelling the project. The investment was eventually redirected to a new plant in Veracruz, in the water-rich southeast — the rare case of the north–south inversion actually steering capital — and the episode entered the investment-climate dossier (MX-N-01) as evidence cutting both ways: arbitrary plebiscitary risk to sunk investment, or overdue democratic control of water allocation, depending on the reader.

The Bonafont occupation carried the frame from referendum to direct action. In March 2021, Nahua communities in Juan C. Bonilla, Puebla, organised as Pueblos Unidos de la Región Cholulteca, seized the Bonafont bottled-water plant (owned by Danone), accusing it of drying communal wells through decades of concessioned extraction. The occupation lasted nearly a year — the plant was converted into a community centre (Altepelmecalli, "the house of the peoples") — before federal and state forces cleared it in February 2022 and the company later resumed operations [TBD-VERIFY: the clearance date and the subsequent status of the plant and its concession]. Alongside the long-running campaigns against soft-drink and bottling concessions in Chiapas (the San Cristóbal de las Casas Coca-Cola/FEMSA controversy, where bottling concessions coexist with communities lacking piped water) [TBD-VERIFY: current status of the FEMSA San Cristóbal concession], Bonafont marked the consolidation of a national repertoire: bottled-water and beverage capital as the visible face of the concession system's inequities — even though, in volumetric terms, beverage extraction is a small fraction of agricultural use.

The largest industrial-extraction question is in fact agro-export. The avocado belt of Michoacán and Jalisco, the berry districts of the Bajío and the Pacific states, Chihuahua's pecans and alfalfa-dairy complex, and Sonora–Sinaloa's vegetable exports together constitute, in the critics' frame, a "virtual water" export machine: water-intensive crops grown in deficit basins and shipped to the US market (§6). Conflicts here are diffuse rather than spectacular — illegal orchard expansion and clandestine ollas (irrigation reservoirs) in Michoacán, well-deepening races in Guanajuato, occasional municipal moratoria — but they implicate the system's core: most of the over-allocation is agricultural, and no government has yet confronted the irrigators' acquired rights at scale.

4.3 The Community and Indigenous Water Defences — the Yaqui Struggle and the Justice-Plan Response

The longest-running indigenous water conflict is the Yaqui struggle in Sonora. The eight Yaqui pueblos hold a 1940 Cárdenas-era presidential decree entitling them to half the flow of the Yaqui River; in practice the river's storage system was developed for the Yaqui Valley irrigation district (the cradle of the Green Revolution) and, from 2010, the PAN state government built the Acueducto Independencia to pump Yaqui-basin water from the El Novillo reservoir to the city of Hermosillo. The Yaqui tribe fought the aqueduct through the courts — winning a 2013 Supreme Court ruling that the project's environmental authorisation required consultation with the tribe [TBD-VERIFY: the precise SCJN holding and its subsequent (non-)implementation] — and through blockades of Highway 15, while the aqueduct operated regardless. The conflict produced criminalisation and bloodshed: spokesman Mario Luna was imprisoned 2014–2015 on charges widely viewed as retaliatory, and water-defence leader Tomás Rojo was murdered in 2021 [TBD-VERIFY: the circumstances and prosecutorial outcome].

AMLO made the Yaqui case the centrepiece of his indigenous-justice agenda: the 2020–2021 Plan de Justicia Yaqui comprised a formal state apology delivered by the president at Vícam in September 2021, land restitution, a dedicated Yaqui irrigation district, an aqueduct to supply the pueblos' drinking water, and a presidential decree creating a water reserve for the tribe [TBD-VERIFY: the decreed volumes and the implementation status of the irrigation district and aqueduct as of 2026, both reported delayed and partially executed]. The plan is governance-significant beyond Sonora: it is the first explicit federal attempt to settle a water conflict through recognition and restitution rather than infrastructure alone, and its uneven delivery is the test case for whether the rights-based turn in Mexican water politics can be cashed out administratively. Comparable, smaller-scale defences — the Mazahua women's "army" in the Cutzamala source basins, the Wixárika and Rarámuri territorial cases, urban-periphery struggles over pipas and clandestine networks in the Valley of Mexico — fill out a national map on which, by the count of academic observatories, water conflicts number in the hundreds per year and rising [TBD-VERIFY: conflict-count estimates from the UNAM/Colmex water-conflict observatories].

5. The Policy Responses (2012–2026) — the Human-Right Amendment, the AMLO Moves, and the Sheinbaum Reform

5.1 The 2012 Human-Right Amendment and the Fourteen-Year Legislative Failure

On 8 February 2012, the Diario Oficial published the amendment adding to Article 4 of the Constitution the declaration that "every person has the right to access, disposal and sanitation of water for personal and domestic consumption in a sufficient, healthful, acceptable and affordable manner", and instructing that the law define "the bases, supports and modalities" of that access with citizen participation. The third transitory article gave Congress 360 days to issue a new Ley General de Aguas replacing the 1992 LAN. That deadline expired in February 2013; it was still unmet more than a decade later — among the most cited legislative defaults in Mexican constitutional practice. The 2015 attempt — the government-aligned "Ley Korenfeld" (after CONAGUA director David Korenfeld) or "Ley Pichardo" draft — was withdrawn after academic and civil-society mobilisation attacked provisions perceived as consolidating large-scale transfers and private participation; the rival citizen-drafted initiative of the Agua para Todos, Agua para la Vida coordination, built on basin-citizenship principles, was formally presented (in 2020, with the required signatures) but never brought to a vote [TBD-VERIFY: the procedural fate of the citizen initiative]. The practical consequence of the stalemate ran through the entire crisis decade: a constitution proclaiming a human right administered through a 1992 statute built for volumetric concessions, with courts increasingly filling the gap through amparo jurisprudence ordering specific supply remedies but unable to reform allocation.

5.2 The AMLO-Era Moves (2018–2024) — Rhetoric, Selective Projects, and the Decree Battles

AMLO's water policy was characteristically his: morally framed, project-led, and institutionally light. He inherited and amplified the critique of the concession system — repeatedly declaring that water had been delivered to particulares under the "neoliberal period" and that no new concessions would be granted over communities' objections — but undertook no general reform of the LAN and left the 2012 mandate unfulfilled; CONAGUA's budget continued the long secular decline from its early-2010s peak [TBD-VERIFY: CONAGUA budget trajectory 2014–2024 in real terms]. Three move-families defined the sexenio. First, the decree battles: in June 2018 the outgoing Peña Nieto government had issued ten decrees lifting decades-old vedas across some 300 basins and replacing them with "reserves", presented as guaranteeing environmental and human-consumption flows but attacked by Agua para Todos as opening previously closed basins to new concessions [TBD-VERIFY: the decrees' precise scope and the AMLO government's eventual handling — partial defence, partial reversal]; AMLO's own 2020 decree drive against the fideicomisos swept up water-related trust funds, and his 2022 decree declaring water projects national-security matters shielded flagship works from transparency and amparo delays, drawing the same critique as the broader militarised-delivery pattern (MX-I-02, MX-C-02). Second, the flagship projects: Agua Saludable para La Laguna (a roughly 10-billion-peso surface-water treatment and distribution system to wean the arsenic-poisoned Comarca Lagunera off its aquifer, substantially delivered 2023–2024 [TBD-VERIFY: completion status and delivered coverage]), the El Cuchillo II emergency aqueduct for Monterrey, the Santa María and Picachos dam completions in Sinaloa, and the rehabilitation works attached to the Maya Train and Interoceanic Corridor packages. Third, the crisis management documented in §3 and §4 — the 2020 treaty confrontation, the 2022 Monterrey emergency, the 2024 Cutzamala scare — each handled through ad hoc federal-state arrangements rather than framework reform. The fair summary: AMLO nationalised the language of water justice and delivered selected hydraulic works, while leaving the 1992 allocation machine — and its over-allocation — intact for his successor.

5.3 The Sheinbaum Agenda (2024–2026) — the Plan Nacional Hídrico and the Concession Reform

Claudia Sheinbaum arrived with more personal authority on water than any modern Mexican president — a doctorate in energy engineering, an environmental-science career, IPCC authorship, and six years governing Mexico City's water stress (her CDMX record included aquifer-recharge, rainwater-harvesting Cosecha de Lluvia, and the management of the 2023–2024 Cutzamala drawdown) — and she moved the file immediately. In November 2024 the government presented the Plan Nacional Hídrico 2024–2030, organised around four axes [TBD-VERIFY: the plan's exact structure and targets]: (i) irrigation tecnificación — modernising on the order of 200,000+ hectares per year across the major irrigation districts to recover several billion cubic metres of agricultural water for reallocation to human consumption [TBD-VERIFY: the hectare and volume targets]; (ii) strategic projects — a portfolio of dams, aqueducts, treatment plants, and the long-deferred repair programmes for the Cutzamala and the Valley of Mexico network; (iii) the Acuerdo Nacional por el Derecho Humano al Agua — a negotiated compact under which large agricultural and industrial concession-holders voluntarily returned unused or excess volumes to the nation, with early announcements claiming billions of cubic metres recovered [TBD-VERIFY: the volumes announced and independently verified]; and (iv) river restoration — the Lerma-Santiago, Atoyac, and Tula basins as flagship clean-ups.

The structural centrepiece is the concession reform. In late 2025 the government sent to Congress the initiative for a new Ley General de Aguas — finally discharging the 2012 mandate — paired with reforms to the LAN [TBD-VERIFY: the initiative's date and architecture]. Its reported core provisions: ending the private transmission of concessions (water rights no longer transferable between private parties; on a concession's expiry, non-use, or the holder's exit, the volume reverts to the nation for reallocation under public criteria), prioritising human consumption in reallocation, hardening sanctions on clandestine extraction and the huachicoleo de agua, regularising smallholder and ejidal irrigation titles, and digitalising/auditing the REPDA against the long-documented gap between paper rights and actual extraction [TBD-VERIFY: each provision against the enacted text]. The initiative provoked the predictable counter-mobilisation: agricultural organisations and northern irrigators — the La Boquilla coalition's heirs — mounted highway blockades and negotiations in late 2025, asserting that reversion-on-expiry and transfer prohibition expropriated rights their members had held (and traded) for three decades, and extracting amendments protecting agricultural-use flexibility and inheritance transmission [TBD-VERIFY: the protest sequence, the concessions made, and the final passage status — reported approved in the Chamber of Deputies in late 2025 with Senate action pending or completed by early 2026]. Wherever the text settled, the political fact is notable: the first frontal legislative assault on the 1992 concession architecture in thirty-three years, undertaken by a Morena supermajority (MX-D-06) with the institutional capacity to pass it — and the question of whether CONAGUA, chronically underfunded and now charged with reviewing tens of thousands of titles, can administer what the law decrees.

5.4 The Infrastructure Ledger — Leakage, Treatment, Reuse, and Desalination

Beneath allocation lies an unglamorous physical deficit. Distribution losses in Mexican cities are estimated around 40 per cent of supplied volume on average [TBD-VERIFY: the canonical national non-revenue-water estimate], the product of aged networks, subsidence-induced breakage (acute in Mexico City), and unmetered or clandestine connections; recovering even a fraction would exceed the yield of most proposed new sources. Wastewater treatment covers on the order of 55–65 per cent of collected municipal flows [TBD-VERIFY: current treatment coverage], many plants operate below design standards, and reuse — the Israeli/Singaporean frontier (§7) — remains a small fraction of treated volume, concentrated in industrial self-supply and the centuries-old (and sanitarily fraught) irrigation of the Mezquital valley with the capital's raw and now Atotonilco-treated sewage [TBD-VERIFY: the Atotonilco plant's operating status — built as one of the world's largest treatment plants, chronically under-utilised]. Tariffs and finance are the binding constraint: most organismos operadores price water below cost, depend on state and federal transfers, and cannot finance renewal — a politically locked equilibrium, since tariff increases are municipally suicidal and the human-right framing is routinely (if incorrectly) read as requiring near-free water. Desalination remains marginal — operating plants in Baja California Sur and industrial projects in Sonora, with the large Rosarito plant for Tijuana repeatedly stalled [TBD-VERIFY: the Rosarito project's status] — constrained by energy cost, brine externalities, and the inland location of the worst deficits. The ledger's summary judgement, common to every serious diagnostic from the OECD's 2013 Making Water Reform Happen in Mexico onward: Mexico does not primarily lack water or engineering; it lacks the pricing, maintenance finance, and utility governance to keep what it has.

6. Water and the Growth Model — Nearshoring, Agro-Export Accounting, and the Urban Inequality of Supply

6.1 The Nearshoring Collision

The nearshoring thesis — that USMCA preference, China-decoupling, and the post-pandemic re-regionalisation of supply chains would make northern Mexico the manufacturing annex of North America (the thesis and its 2025–2026 stress-testing are documented at MX-D-06 and MX-O-01 §5) — was formulated with almost no water arithmetic attached. The collision is geographic by construction: the states recruiting the investment (Nuevo León, Chihuahua, Coahuila, Baja California, the Bajío) are precisely the over-allocated arc of §3, and industrial recruitment is led by state governors whose incentive is to promise inputs first and account for them later.

Monterrey is the test case. Governor Samuel García's Nuevo León landed the signature prize of the boom — Tesla's announced gigafactory at Santa Catarina, unveiled in March 2023, barely six months after the city's taps had run hours-a-day — and met the obvious objection with commitments that the plant would rely on recycled and treated water rather than new freshwater concessions [TBD-VERIFY: the specific water commitments attached to the Tesla permits]. The project's subsequent suspension (Musk's 2024 postponement amid US-election and tariff uncertainty, unresolved through 2025–2026 [TBD-VERIFY: project status as of mid-2026]) means the water commitments were never tested at scale, but the episode fixed the template for every subsequent siting debate: industrial water use in Nuevo León is small relative to agriculture (statewide, industry holds a single-digit-to-low-teens share of concessioned volume [TBD-VERIFY: sectoral shares]), yet industrial visibility is total, and the politics of a thirsty city watching new factories arrive does not run on sectoral percentages. The state's answer — the post-2022 portfolio of El Cuchillo II, the Libertad dam, and wastewater-reuse contracting for industry — amounts to a wager that supply augmentation can outrun recruitment.

Data centres and semiconductors sharpen the collision because their water (and power) demands are continuous and their employment thin. Querétaro — marketed as Mexico's data-centre capital, hosting cloud-region investments by the hyperscalers — sits in a semi-arid basin with declining aquifers, and its build-out has generated the country's first explicit data-centre water debates [TBD-VERIFY: specific Querétaro siting controversies and any disclosed water-consumption figures]; comparable questions attach to the semiconductor-packaging and electronics investments courted under the CHIPS-era "friendshoring" framework in the northern states [TBD-VERIFY: specific semiconductor siting episodes with water dimensions]. The governance gap is structural: siting decisions are made by federal investment promotion and state governments, water accounting by CONAGUA's availability publications (often outdated), and no binding mechanism forces the former to respect the latter. The Sheinbaum water reform's reallocation-priority rules (§5.3) are the first instrument that could, in principle, discipline industrial siting against basin balances; whether it will be applied against flagship investments the same government is recruiting is among the document's forward questions.

6.2 The Agro-Export Model's Water Accounting

Agriculture holds roughly 76 per cent of national consumptive water use [TBD-VERIFY: the canonical CONAGUA figure, usually cited at 76 per cent against ~14–15 per cent public urban supply and ~5 per cent each for industry and thermoelectric], which makes every urban and industrial conflict, in volumetric terms, a skirmish at the margin of the agricultural allocation. The accounting critique — developed by Mexican academics and international observers under the "virtual water" rubric — runs as follows: the post-NAFTA reorientation of Mexican agriculture toward high-value export horticulture (avocados, berries, tomatoes, peppers, citrus, table grapes, pecans, plus beer and tequila as processed water exports) means Mexico ships embedded water from deficit basins to the US consumer; the export boom's private returns are real (agri-food exports passed US$50 billion in the mid-2020s [TBD-VERIFY: the export figure]), but the water is priced at essentially zero — agricultural concession-holders pay no volumetric federal fee for irrigation water [TBD-VERIFY: the current derechos schedule's agricultural exemption] and electricity for pumping was long subsidised under Tariff 9, encouraging overdraft. The counter-case is also real: export horticulture is far more productive per cubic metre than the grain and forage it partially displaced; the problem on this reading is not exporting water-intensive crops but failing to price and cap extraction — the policy failure of §2, not the trade pattern of §6. The synthesis most analysts land on: Mexico's water crisis cannot be solved anywhere but in agriculture — through tecnificación, crop conversion, measured wells, and volumetric pricing — and no government before 2024 was willing to spend political capital there, because the agricultural water franchise is defended by exactly the coalition that seized La Boquilla.

6.3 The Urban-Inequality Dimension — the Pipas Economy and the Intermittency Map

Within Mexican cities, scarcity is distributed by class and cartography. The wealthy west of Mexico City enjoys near-continuous supply; the eastern and peripheral boroughs — Iztapalapa above all, with nearly two million residents — have lived for decades under tandeo (scheduled rotation), low pressure, and water whose quality residents distrust, compensated by the pipas economy: fleets of tanker trucks, some municipal and free, many private and dear, delivering water at multiples of the piped tariff to precisely the households least able to pay [TBD-VERIFY: representative pipa price multiples and the share of CDMX households relying on non-piped supply]. The pattern generalises: across urban Mexico, intermittent supply affects a large share of nominally "covered" households — coverage statistics count connections, not continuity [TBD-VERIFY: national intermittency estimates] — and the coping economy (rooftop tinacos, cisterns, bottled water for drinking) transfers the system's failures onto household budgets. Mexico is the world's highest per-capita consumer of bottled water [TBD-VERIFY: the standard claim and figure], a market built on rational distrust of the tap and itself a political economy with a stake in the status quo. The huachicoleo de agua — clandestine taps, stolen pipas, and criminal intermediation of scarce supply, with documented cartel participation in some metropolitan peripheries [TBD-VERIFY: the documented cases of organised-crime water intermediation in Ecatepec and elsewhere] — closes the circle: where the state does not deliver the constitutional right, an illegal market does, at extortionate prices. The equity reading of the whole system is therefore stark: the formal allocation machine delivers near-free water to agriculture and reliable water to the affluent, while the constitutional rights-holders of 2012 buy theirs by the drum.

7. Comparative and Forward Perspective — Mexico in the Water-Governance Literature and the 2030s Questions

In the comparative water-governance literature, Mexico functions as the canonical concession-overshoot case: a system that created formally secure, registered, partially tradable use-rights — the institutional design the 1990s consensus prescribed — and then issued them beyond availability while never building the measurement, enforcement, and pricing apparatus the design presupposed. The OECD's Mexico water studies, the World Bank's successive diagnostics, and the Mexican academic literature converge on the diagnosis even where they diverge on remedies [TBD-VERIFY: specific flagship-report citations]. The instructive contrasts frame the Sheinbaum reform:

Chile is the neighbour experiment at the market extreme. The 1981 Water Code, the Pinochet-era apotheosis of tradable private water rights, separated water from land, granted perpetual rights free of charge, and made them fully marketable — producing both the efficiency gains its defenders cite and the concentration, speculation, and dry-basin scandals (Petorca's avocados) that made agua a central grievance of the 2019 estallido and a headline issue in both failed constitutional drafts of 2022–2023 (the Chilean sequence is documented at CL-K-05 in the Chile corpus). Chile's 2022 Water Code reform — time-limiting new rights, prioritising human consumption, strengthening sustainability conditions — moved the market model toward the administrative; Mexico's 2025 reform moves the administrative model away from the quasi-market. The two countries are converging from opposite ends on the same insight: neither pure markets nor pure paper administration governs scarcity without measurement, caps, and enforceable priority for human and ecological needs.

Israel and Singapore supply the reuse-and-pricing pole that Mexican policy rhetoric regularly invokes. Israel treats and reuses on the order of 85–90 per cent of its wastewater (overwhelmingly for agriculture), prices water at full cost through a national utility, meters universally, and added large-scale desalination — a package built on small territory, centralised governance, and decades of consistent investment. Singapore's NEWater and four-taps strategy adds the demonstration that recycled water can be politically normalised. The applicability limits are obvious — Mexico's federalism, its 2,500 fragmented utilities, its near-free agricultural water, and its fiscal posture are the inverse of both models — but the direction of fit is not disputed in the technical community: every credible Mexican pathway runs through some Israeli-style combination of universal measurement, cost-covering tariffs with targeted subsidies (the human-right amendment requires affordable, not free), and treated-water reuse at scale, with desalination as a coastal supplement. The political economy, not the engineering, is the constraint.

The 2030s questions can be stated with unusual precision for a policy domain, because the arithmetic is public:

First, the 1944 treaty. The Conchos basin under climate projections cannot reliably yield Mexico's cycle obligations; the 2020 and 2025 crises will recur on a roughly five-year political clock, each under whatever bilateral weather then prevails (MX-E-02; MX-F-01). The options space — supplementary IBWC minutes codifying drought-sharing (on the model of the Colorado's Minutes 319/323, which manage the US delivery side), physical investments in Conchos efficiency credited against deliveries, or a politically explosive renegotiation — will likely be forced within the decade, plausibly entangled with the USMCA's own 2026-and-after review politics [TBD-VERIFY: any 2026 movement toward treaty minutes on the Rio Grande side].

Second, the aquifer deadline. Over-exploited aquifers are not a steady-state problem: depletion is cumulative, quality degradation (arsenic, fluoride, salinity) compounds it, and individual basins — La Laguna, Calera, the Bajío hotspots, the Valley of Mexico itself — face horizon dates within decades at current extraction [TBD-VERIFY: representative depletion-horizon estimates]. The Sheinbaum reform's reversion-and-reallocation machinery is the first legal instrument adequate to caps; whether CONAGUA acquires the metering, personnel, and political cover to apply it against the agricultural franchise is the implementation question on which the decade turns.

Third, whether water disciplines the growth model. The corpus's megatrends document (MX-O-01) poses the 2030s as the decade in which Mexico's nearshoring opportunity meets its institutional constraints; this document specifies the physical version. If allocation reform, agricultural tecnificación, urban-loss recovery, and reuse investment proceed on something like the Plan Nacional Hídrico schedule, water remains a manageable cost of the northern model. If they stall — in CONAGUA's capacity, in the irrigators' blockades, in municipal tariff politics — then the 2022 Monterrey pattern generalises: episodic urban emergencies, investment vetoes by referendum and protest, hardening conflict between cities, farmers, factories, and the treaty, and the quiet redirection of capital that Constellation's Veracruz brewery prefigured. Mexico would then have run the full arc of the 1992 settlement: a paper-rights system born of the reform era, overdrawn for thirty years, and finally disciplined not by law but by hydrology.

8. Conclusion

Mexican water governance between 1992 and 2026 traces a single arc: an allocation architecture built in the reform optimism of the Salinas years — national property, administrative concessions, registered and quasi-tradable rights, devolved irrigation, municipal utilities — that was overdrawn almost from its founding and never acquired the measurement, pricing, or enforcement to live within hydrological means. For two decades the gap between paper and water was absorbed invisibly, by falling aquifers and degraded rivers. In the 2020s it stopped being invisible: a farmer shot dead at a dam Mexico had pledged to a treaty it could no longer comfortably honour; the country's richest city queueing for tanker trucks; the capital's lifeline reservoirs flirting with "day zero"; corporate plants cancelled by plebiscite and occupied by the communities around them. Water moved from the technical annex of Mexican governance to its centre.

The institutional response has been characteristically uneven. The 2012 constitution promised a human right that fourteen years of legislatures declined to implement. The AMLO sexenio supplied the moral vocabulary and selected works while leaving the machine untouched. The Sheinbaum government — uniquely credentialed for the file — has mounted the first structural assault on the 1992 settlement: a national water plan, a negotiated return of concessioned volumes, and a legislative reform extinguishing the private market in water rights [TBD-VERIFY: final enacted form]. Its fate now rests on the oldest constraint in Mexican public administration: whether a chronically under-resourced agency can execute against the country's best-organised acquired interests — the agricultural concession-holders who hold three-quarters of the water and have already shown, at La Boquilla, that they will physically defend it.

The forward stakes exceed the sector. The 1944 treaty binds water to the US relationship and now to the tariff-coercion repertoire of the Trump-2 era; the aquifer arithmetic sets physical deadlines beneath the agro-export model; and the nearshoring wager — the central economic bet of the Sheinbaum sexenio — is being placed in the basins least able to supply it. Whether Mexico's growth model disciplines its water use, or its water disciplines the growth model, is among the genuinely open questions of the 2030s, and this document's standing brief is to track which way it resolves.

Sources

Ley de Aguas Nacionales, Diario Oficial de la Federación, 1 December 1992, and its reforms (notably the 29 April 2004 reform); Reglamento de la Ley de Aguas Nacionales (1994).
Decreto por el que se Declara reformado el párrafo quinto y se adiciona un párrafo sexto recorriéndose en su orden los subsecuentes, al artículo 4o. de la Constitución Política de los Estados Unidos Mexicanos (human right to water and sanitation), Diario Oficial de la Federación, 8 February 2012.
Treaty between the United States of America and Mexico Respecting Utilization of Waters of the Colorado and Tijuana Rivers and of the Rio Grande, signed 3 February 1944; International Boundary and Water Commission (IBWC/CILA), Rio Grande five-year-cycle delivery accounting and Minutes [TBD-VERIFY: the 2020 cycle-closure instrument and any 2025 minute or understanding on deliveries].
Comisión Nacional del Agua (CONAGUA), Estadísticas del Agua en México (annual editions); Atlas del Agua en México; Registro Público de Derechos de Agua (REPDA) datasets; Monitor de Sequía en México; Disponibilidad media anual de agua publications under NOM-011-CONAGUA-2015.
Presidencia de la República / Gobierno de México, Plan Nacional Hídrico 2024–2030 (presented November 2024) and the Acuerdo Nacional por el Derecho Humano al Agua documentation [TBD-VERIFY: official titles and announced recovered volumes].
Iniciativa de Ley General de Aguas and reform of the Ley de Aguas Nacionales presented by the executive to the Cámara de Diputados, 2025, and the legislative record of its amendment and passage [TBD-VERIFY: gaceta parlamentaria citations and enacted text].
OECD, Making Water Reform Happen in Mexico (OECD Studies on Water, 2013); OECD, Water Governance in Cities (2016), Mexico chapters.
World Bank, Mexico water sector diagnostics and Mexico Water Security Diagnostic work [TBD-VERIFY: specific report titles and years]; World Bank evaluations of the 1990s irrigation-management transfer programme.
Aboites Aguilar, Luis, El agua de la nación: Una historia política de México (1888–1946) (CIESAS, 1998), and La decadencia del agua de la nación (El Colegio de México, 2009) — the standard political histories of Mexican water.
Wilder, Margaret, and Patricia Romero Lankao, "Paradoxes of Decentralization: Water Reform and Social Implications in Mexico", World Development 34:11 (2006); Margaret Wilder's subsequent work on Mexican water governance and the Sonora conflicts.
Scott, Christopher A., and Jeff M. Banister, "The Dilemma of Water Management 'Regionalization' in Mexico under Centralized Resource Allocation", International Journal of Water Resources Development (2008); academic literature on CONAGUA, REPDA over-allocation, and groundwater governance (including the work of Andrea K. Gerlak, Sandy Dall'erba collaborators, and El Colegio de México water researchers) [TBD-VERIFY: specific further citations].
Reporting and case literature on the 2020 Chihuahua conflict: national and international press coverage of the La Boquilla seizure (8 September 2020) and the killing of Jessica Silva; CNDH and FGR materials on the National Guard shooting [TBD-VERIFY: the official investigation documents].
Reporting on the March 2020 Mexicali consulta and the Constellation Brands cancellation; on the 2021–2022 Bonafont/Altepelmecalli occupation in Juan C. Bonilla, Puebla; and on the San Cristóbal de las Casas bottling controversy [TBD-VERIFY: specific investigative pieces].
Suprema Corte de Justicia de la Nación, amparo jurisprudence on the Acueducto Independencia and Yaqui consultation (2013) [TBD-VERIFY: case numbers]; Presidencia de la República, Plan de Justicia del Pueblo Yaqui documentation and the September 2021 Vícam apology; reporting on the 2021 murder of Tomás Rojo.
Gobierno de Nuevo León / Agua y Drenaje de Monterrey, 2022 emergency documentation; reporting on the Monterrey 2022 rationing and the El Cuchillo II construction; Gobierno de la Ciudad de México and CONAGUA communications on the Cutzamala system levels, 2023–2024.
Agua para Todos, Agua para la Vida coordination, citizen Ley General de Aguas initiative and advocacy materials (2015–2025); critiques of the June 2018 Peña Nieto water-reserve decrees.
CONAGUA / SEMARNAT, Agua Saludable para La Laguna project documentation; literature on arsenic contamination of the Comarca Lagunera principal aquifer.
UNAM and El Colegio de México water-conflict observatory datasets and the Mexican academic literature on water conflicts (including work by Boelens-school political ecologists on Mexican cases) [TBD-VERIFY: the specific observatory publications].
Comparative literature: Carl J. Bauer, Siren Song: Chilean Water Law as a Model for International Reform (RFF Press, 2004) and the post-2022 Chilean Water Code reform literature; Seth M. Siegel, Let There Be Water: Israel's Solution for a Water-Starved World (2015); PUB Singapore, NEWater programme documentation.
Bottled-water, pipas-economy, and intermittency studies: academic and journalistic work on Iztapalapa and the Valley of Mexico supply inequality, Mexico's bottled-water consumption, and organised-crime water intermediation [TBD-VERIFY: specific studies, including the Ecatepec cases].

MX-G-01: Pemex and the Mexican Energy Architecture (2013–2024) (sister Block-G policy anchor; the energy-water nexus in pumping costs and thermoelectric use)
MX-G-02: Mexico's Welfare State — the 4T Social Programmes and the Constitutionalisation of Social Rights (sister Block-G anchor; the parallel 2012-style constitutionalisation-of-rights dynamic and the fiscal-space competition)
MX-E-02: US–Mexico Trump-2 Tariff Confrontation and the 2025–2026 Trade Shock (the 1944-treaty water debt inside the coercive-bargaining repertoire)
MX-D-06: Sheinbaum Year Two (2025–2026) — USMCA Review and Economic Recalibration (the political frame of the Sheinbaum water-reform push and the nearshoring stress-test)
MX-O-01: Mexico Megatrends — The 2030s Questions (the growth-model and nearshoring frame this document physicalises; see its §5)
MX-I-02: The Mexican Armed Forces and the Militarisation of Public Life (the National Guard at La Boquilla; SEDENA project delivery; the national-security decrees shielding water works)
MX-K-02: The 2013 Energy Reform and Its Reversal (the companion resource-sovereignty arc — concession/contract design and its Morena-era reversal)
MX-C-02: Cuarta Transformación (4T) Programme — AMLO Presidency 2018–2024 (the AMLO-era governing frame: consultas, decree governance, flagship-project delivery)
MX-N-01: Mexico in International Perceptions (the Constellation cancellation and water-plebiscite risk in the investment-climate dossier)