An Environmental Performance Report and Management Plan (EPRMP) was prepared for the amendment of the Environmental Compliance Certificate (ECC) of the Tagoloan Hydropower Project (Tagoloan HPP). The EPRMP was essential to the project because of FGen Tagoloan Hydro Corporation’s (FGen) plant to increase their production capacity and change the location of their main project components. The proposed 33-39MW Tagoloan HPP is located in Impasug-ong, Bukidnon will utilize the Tagoloan River The project is in line with the endeavor of the Department of Energy (DOE) to develop a diversified mix of renewable energy resources. The project is expected to address Mindanao’s need for additional energy by 2025.
The proponent for the project, the FGen Tagoloan Hydro Corporation is a subsidiary of the First Gen, created specifically for the Tagoloan Hydropower Project. In addition, the First Gen is considered the leading company in the Philippines in the field of clean and renewable energy and composing 16% of the total installed capacity in the country or 2,959MW.
Aperçu Consultants Inc. conducted the following activities to prepare for the EPRMP:
Land Use, Geology, and Pedology
Data from the municipal Comprehensive Land Use Plan (CLUP) of Impasug-ong was used to determine the land use of the area with relation to the location of the Tagoloan HPP. Information on the slopes and soil types was also collected. The geology of the project area was assessed and potential hazards and hazard-prone areas were identified.
The flora assessment of the project site was taken from the Ecological Study and Sustainability Plan (ESSP) of the GHD of the Tagoloan HPP which was conducted through the commission of the FGen Tagoloan. The results of the ESSP were considered in the formulation of the EPRMP. The ESSP assessed the ecological parameters (i.e., density, frequency, dominance, plant diversity, and evenness indices) using the Magurran 1988 formulae, and the vegetation description of the area which includes the taxa richness, biodiversity indices, ecologically important species, and invasive species. This has helped in the development of mitigating and monitoring measures in terms of the possible impacts the project activities may cause to the identified species.
A faunal assessment of avian, mammalian, amphibians, and reptiles in the site were assessed during the dry season. The presence, distribution, and endemicity/conservation status were also identified to provide an assessment of the impact of the project to the identified species which were the basis in the development of mitigating measures and monitoring plans.
The hydrology which includes the hydrologic catchment, climate, rainfall, evaporation, streamflow, hydrological modelling was discussed and assessed. The hydrological modelling involved the streamflow and minimum ecological flow of the Tagaloan River which were used in determining the flow scenarios that are to occur to the river.
Water samples were collected from the project site to be used for the baseline data for water quality to which the impacts of the project will be determined from. The potential impacts based on the results of the parameters for water quality were considered and given mitigation and management measures.
The existing meteorological conditions at the project site were collected and assessed to identify which factors may impact the project area.
Ambient Air Quality
The existing ambient air quality in the project area was measured as a baseline to be compared to the ambient air quality standards during the construction and operation phases of the project. Sources of air emissions and existing air pollutant levels were determined.
The existing ambient noise levels in the vicinity of the proposed project site were measured and the potential noise impacts during the construction and operation of the plant were determined and compared to criteria values.
The baseline socio-economic conditions of the municipality were described and Information, Education, and Communication (IEC) programs were conducted to make the community aware of the proposed project. A Social Assessment Study (SAS) was also conducted to establish the economic, political, and cultural significance of the project.
Environmental Risk Assessment (ERA)
Risks during the construction and operation of the project were identified and evaluated. Assessment studies were conducted to understand these risks and develop suitable mitigation strategies, management and emergency response plans.
The Environmental Compliance Certificate (ECC) for the project was issued by the Department of Environment and Natural Resources (DENR) Region X on 01 October 2012 with ECC Reference No. ECC-R10-1209-0178. The ECC is available at the following link.