Public Dominion Character of Water Resources
Water resources are governed by a public-law property regime because water is indispensable to life, agriculture, health, navigation, power, ecology, and public order. The Civil Code classifies specific waters and their beds as property of public dominion, while the Water Code states the modern rule more broadly: waters belong to the State, including waters physically found on private land.
State ownership of water does not mean ordinary private ownership by the government. It means ownership in a sovereign and regulatory capacity. Water resources are generally outside the commerce of man, cannot be acquired by prescription, cannot be made the object of private title merely because they are within titled land, and may be used only in the manner allowed by law.
The legal subject is not only the moving liquid. In many instances, the public dominion classification includes the natural bed, because control of the water would be incomplete without control of the physical channel, basin, or receptacle through which the water naturally exists or flows.
Civil Code Classification of Waters
Under the Civil Code, the classification of waters depends on their source, location, movement, and relation to public or private land. The Code recognizes waters of public dominion and, in limited cases, waters of private ownership.
Waters of Public Dominion
The Civil Code treats the following as property of public dominion because they are devoted to public use or public service by their nature, location, or relation to public works:
- Rivers and their natural beds are public dominion property, regardless of whether the river crosses public or private land.
- Continuous or intermittent waters of springs and brooks running in their natural beds, together with the beds themselves, are public dominion property while they form part of a natural watercourse.
- Waters rising continuously or intermittently on lands of public dominion belong to the public dominion.
- Lakes and lagoons formed by nature on public lands, including their beds, belong to the public dominion.
- Rain waters running through ravines or sand beds are public dominion property because they have passed into natural channels serving public drainage and flow.
- Subterranean waters on public lands belong to the public dominion.
- Waters found within the zone of operation of public works belong to the public dominion even if the works were constructed by a contractor.
- Waters rising on land belonging to private persons, the State, provinces, cities, or municipalities become public dominion property from the moment they leave the land where they rise.
- Waste waters of fountains, sewers, and public establishments belong to the public dominion.
The Civil Code rule shows that private land may be the physical setting of a water source without necessarily making the water permanently private. Once water leaves the private land, enters a public watercourse, or forms part of a natural public channel, it is governed by the public dominion regime.
Waters Treated as Private Under the Civil Code
The Civil Code also recognizes limited private ownership over waters closely confined to private land. These include waters rising on private land while they run through the same land, lakes and lagoons naturally formed on private land together with their beds, subterranean waters found under private land, and rain waters falling on private land while they remain within its boundaries.
This private classification is narrow and location-dependent. It does not give a landowner ownership over a river, a public natural bed, water after it leaves the private land, or water that has entered a public drainage or watercourse.
Water Code Rule: Waters Belong to the State
The Water Code reorganizes the law by declaring State ownership over waters in general. Its declaration covers rivers and their beds, springs and brooks in their natural beds, natural lakes and lagoons, surface waters, rain water, agricultural runoff, seepage, drainage, atmospheric water, subterranean or ground water, and seawater.
The Water Code also expressly provides that waters found on private land belong to the State. This includes continuous or intermittent waters rising on private land, natural lakes and lagoons on private land, rain water falling on private land, subterranean or ground water, and water in swamps and marshes.
The practical effect is that the Civil Code provisions on private ownership of certain waters must be read subject to the later and broader Water Code. A landowner may own the land, but the water resource itself is subject to State ownership, administrative control, and lawful appropriation.
The Water Code does not make private land useless for water purposes. It separates ownership of the water resource from lawful use of water. The landowner may have limited rights of use, but those rights do not ripen into ownership of the water as a natural resource.
Private Land and Water Found Within It
Ownership of land does not automatically include ownership of the water on, under, or passing through the land. A certificate of title over land does not convert a river, spring, groundwater source, lake, lagoon, swamp, marsh, or rainwater resource into ordinary private property.
The owner of land where water is found may use the water for domestic purposes without first securing a water permit, subject to registration when required and regulation in cases of wastage or emergency. This statutory privilege is a limited use right attached to the landowner’s situation, not a transfer of State ownership.
Domestic use is understood as household-oriented use, such as drinking, washing, bathing, cooking, ordinary home needs, and similar family or residential requirements. When the use becomes commercial, industrial, irrigation, power, municipal, recreational, or otherwise beyond the limited domestic privilege, the user must look to the Water Code system on appropriation and permits.
Regulation against wastage is consistent with the nature of water as a finite public resource. Even a landowner’s no-permit domestic use may be restrained when the manner, volume, or circumstances of use prejudice conservation, public health, competing lawful users, or emergency allocation.
Captured or Collected Water
The Water Code gives a special rule for water captured or collected by means of cisterns, tanks, pools, or similar receptacles. The person who captures or collects the water has exclusive control over that collected water and the right to dispose of it.
This rule concerns a segregated and controlled volume of water after capture. It should not be confused with ownership of the natural source from which water came, such as the atmosphere, a spring, groundwater, or a stream. The capture rule allows practical control over stored water, but it does not privatize the natural water resource itself.
The exclusive control is strongest when the water has been lawfully collected, physically separated from the natural source, and placed in a receptacle where the collector can manage its use. Once the legal issue concerns diversion from a natural watercourse, extraction of groundwater, impounding of public waters, or use beyond ordinary collection, the Water Code’s rules on appropriation and regulation become relevant.
Legally Appropriated Water
Water legally appropriated is subject to the control of the appropriator from the moment it reaches the appropriator’s canal, aqueduct, or works leading to the place where the water will be used or stored. The control continues only while the water is being beneficially used for the purpose for which it was appropriated.
Appropriation gives a right to use water, not ownership of the water as a natural resource. The appropriator’s control is therefore limited by the terms of the lawful appropriation, the purpose of use, the place of use or storage, the quantity allowed, beneficial use, conservation requirements, and the continuing regulatory power of the State.
The phrase beneficially used is important because water rights are not meant to support speculation, hoarding, waste, or diversion without actual lawful need. A right to use water is measured by the authorized beneficial purpose and may be lost, reduced, regulated, or subordinated when the law so provides.
Comparative Treatment
| Water or Setting | Civil Code Treatment | Water Code Effect |
|---|---|---|
| Rivers and natural beds | Public dominion property. | Belong to the State and remain subject to public regulation. |
| Springs and brooks in natural beds | Public dominion while running in their natural beds, including the beds. | Covered by State ownership as waters and natural beds. |
| Natural lakes and lagoons | Public if on public land; private treatment was recognized when formed on private land. | Natural lakes and lagoons, including those on private land, belong to the State. |
| Rain water | Private while falling and remaining within private land; public when running through ravines or sand beds. | Rain water and surface water are State-owned, subject to limited domestic use and lawful collection. |
| Subterranean or ground water | Public when on public land; private treatment was recognized when under private land. | Ground water belongs to the State even when found under private land. |
| Water in swamps and marshes on private land | Not the central focus of the Civil Code enumeration. | Expressly belongs to the State. |
| Captured water in tanks, pools, or cisterns | Governed by general property principles after lawful capture. | Collector has exclusive control over the collected water and may dispose of it. |
| Legally appropriated water | Use may be governed by property and servitude concepts. | Appropriator controls the water only from delivery to the appropriation works and only while beneficially used for the authorized purpose. |
Legal Consequences of State Ownership
Because waters belong to the State, private persons cannot acquire ownership of natural water resources by occupation, accession, prescription, registration, or long use. Longstanding enjoyment may be relevant to administrative recognition or priority only when the governing water law allows it, but it does not convert the water itself into private property.
Contracts over land should not be read as conveyances of State-owned waters unless the law recognizes a transferable water right and the transfer complies with regulatory requirements. A sale, lease, mortgage, or partition of land may include improvements, access rights, or lawful uses, but it cannot dispose of public dominion water as though it were an ordinary private thing.
Public dominion status also affects remedies. A private claimant generally cannot maintain an action premised on ownership of a river, natural lake, groundwater source, or public watercourse. The legally protected interest is usually lawful use, possession of waterworks, protection against unlawful diversion, nuisance abatement, damages for injury to property, or enforcement of a recognized water right.
State ownership supports regulation of extraction, diversion, storage, pollution control, allocation during scarcity, and restrictions during emergencies. It also supports the rule that private enjoyment of water must yield to public health, safety, conservation, navigation, flood control, ecological protection, and superior lawful uses recognized by the State.
Relationship Between Land, Bed, and Water
For rivers and natural watercourses, the natural bed is legally significant because it is part of the public dominion classification. A person who owns land adjoining or surrounding a watercourse does not acquire the bed if the law classifies the bed as public.
For lakes and lagoons, the older Civil Code distinction depended partly on whether the natural basin formed on public or private land. Under the Water Code, the water resource is State-owned even on private land, so any private claim must be confined to land rights not inconsistent with State ownership and public regulation of the water.
For groundwater, the Water Code is especially important because subterranean water is not visible from the surface and may extend beyond titled boundaries. State ownership prevents each surface owner from treating underground water as an exclusively private object and allows regulation according to recharge, depletion, competing wells, public supply, and conservation.
Working Rules
- Classify natural waters first under the State-ownership rule of the Water Code, then use the Civil Code categories to understand the public dominion background and the treatment of beds and watercourses.
- A private title over land does not include ownership of rivers, public beds, natural watercourses, groundwater, or other State-owned waters.
- Water found on private land belongs to the State, although the landowner may have limited domestic use without a permit, subject to registration and regulation when required.
- Water that has been lawfully captured in cisterns, tanks, pools, or similar receptacles may be placed under the exclusive control of the collector.
- Water that has been legally appropriated is controlled by the appropriator only after it reaches the appropriation works and only while it is beneficially used for the authorized purpose.
- Use rights over water are limited, regulated, and purpose-bound; they do not amount to absolute ownership of the natural resource.