Protecting the Environment: The Writ of Kalikasan and Environmental Impact Assessments

The constitutional right to a balanced and healthful ecology is one of the most important protections Philippine law offers its citizens. But how is this right enforced when a project threatens to damage rivers and watersheds? In PTK2 H2O Corporation v. Court of Appeals (G.R. No. 218416, November 16, 2021), the Supreme Court En Banc reaffirmed the power of the writ of kalikasan as a remedy for environmental harm. The case also clarified when an Environmental Impact Assessment (EIA) and an Environmental Impact Statement (EIS) are required before government agencies may issue permits.

The case involved a bulk water supply project that threatened the river systems of Indang, Cavite. The Court's ruling provides essential guidance on environmental protection, the precautionary principle, and the limits of government discretion in approving projects.

The Facts of the Case

In 2012, Tagaytay City Water District (TCWD) contracted with PTK2 H2O Corporation to supply water for Tagaytay City. PTK2 planned to extract water from four rivers in Indang, Cavite: the Lambak, Indang, Saluysoy, and Ikloy rivers. The company held water permits from the National Water Resources Board (NWRB) and later obtained an Environmental Compliance Certificate (ECC) from the Department of Environment and Natural Resources (DENR).

The project raised serious concerns among residents and environmental groups. A study commissioned by the Cavite State University concluded that the project was not environmentally sound. The approved extraction rates far exceeded the sustainable limit of 30% of surface water flow recommended by international authorities. The ECC was also issued without requiring an EIS, despite the project being located on the headwater of the Ikloy River, which is an environmentally critical area.

The Writ of Kalikasan and Its Requirements

The writ of kalikasan is an extraordinary legal remedy designed to address environmental damage of significant magnitude. Under Section 1, Rule 7 of the Rules of Procedure for Environmental Cases, the writ requires three elements:

1. An actual or threatened violation of the constitutional right to a balanced and healthful ecology
2. The violation arises from an unlawful act or omission of a public official, employee, or private entity
3. The violation involves environmental damage of such magnitude that it prejudices the life, health, or property of inhabitants in two or more cities or provinces

In this case, the Court found all three requirements satisfied. The project threatened to damage the environment and the livelihoods of residents in at least three cities and nine municipalities in Cavite that depend on the four rivers for water.

The Precautionary Principle

A key feature of the Court's ruling was its application of the precautionary principle. Under Section 5, Rule 20 of the Rules of Procedure for Environmental Cases, when there is a lack of full scientific certainty in establishing a causal link between human activity and environmental effect, courts must resolve the case in favor of the constitutional right to a balanced and healthful ecology.

The Court explained that the precautionary principle applies when three conditions coincide: uncertainty, the possibility of irreversible harm, and the possibility of serious harm. In this case, there were conflicting figures on river flows and extraction rates. The potential harm was serious and possibly irreversible. The Court held that when in doubt, cases must be resolved in favor of environmental protection.

When Is an Environmental Impact Statement Required?

The Court also addressed when an EIS is mandatory. Under Presidential Decree No. 1151 and Presidential Decree No. 1586, an EIS is required for every project that significantly affects the quality of the environment. The EIS must contain a detailed statement of the project's environmental impact, unavoidable adverse effects, alternatives, and the consistency of short-term uses with long-term productivity.

The Court ruled that the project site, located on the headwater of the Ikloy River, is an environmentally critical area. The river is an aquifer, a source of water for domestic use, and supports wildlife and fishery activities. As such, the project required a full EIS before an ECC could be issued. The DENR's failure to require one was a violation of the law.

The Court's Ruling

The Supreme Court denied PTK2's petition and affirmed the Court of Appeals' decision. The Court upheld the cancellation and revocation of PTK2's water permits and ECC. It ruled that the reliefs available under the writ of kalikasan are broad, comprehensive, and non-exclusive. While the Rules do not explicitly list the revocation of permits as a remedy, courts may grant such relief to ensure the permanent discontinuation of environmentally harmful acts.

The Court also noted that the water supply contract exceeded the maximum volume allowed under the permits and the ECC. The extraction rates violated the principle of sustainability and the right to a healthy environment. The project could not be allowed to continue without adjusting the extraction rates and other details of the facility.

Practical Takeaways

• The writ of kalikasan is a powerful remedy for environmental violations affecting two or more cities or provinces. It allows courts to order the cancellation of permits and ECCs, not just temporary stoppage of harmful activities.
• The precautionary principle shifts the burden of proof. When scientific certainty is lacking, the project proponent must provide evidence to dispel concerns about potential environmental harm. Doubt is resolved in favor of the environment.
• An EIS is not a mere formality. Projects in environmentally critical areas, such as water bodies tapped for domestic use, require a full Environmental Impact Assessment before any ECC may be issued.
• Government agencies must strictly follow environmental regulations. Perfunctory assessment of applications, reliance on outdated data, and failure to conduct required consultations can invalidate permits and expose agencies to liability.
• Local government consultation is mandatory. Under Sections 26 and 27 of the Local Government Code, national agencies must consult with local government units and obtain the approval of the sanggunian before implementing projects that may affect the environment.

This article is general information and not legal advice. For your specific situation, consult a lawyer or ask ASG Legal AI.