Geo Resistivity Survey for Brgy. Banquerohan and Maslog Legaspi, Albay
- generaladmin2
- May 1
- 3 min read
Updated: May 2
Client: BCG Corporation
Location: Brgy. Banquerohan, Brgy. Maslog, Legaspi, Albay
Securing water before building homes is a critical challenge for Legazpi’s growing communities. Legazpi City is facing a pressing challenge: ensuring a sustainable and reliable source of potable water in the face of rapid population growth, tourism-driven development, and increasing climate stress. Since January 2022, residents have experienced frequent water service interruptions, low pressure, and limited access to drinkable water—problems that continue to escalate as demand rises. Source: Legazpi Water District
This growing water crisis poses a serious threat to upcoming developments, including a planned large-scale housing project in Legazpi City, Albay. Ideally situated near popular destinations such as Mt. Mayon Viewpoint, Bulique Bay, the Karangaha and Luksuhan waterfalls, and Apad and Lamba Beaches, the project promises high investment and residential appeal. But without a secure water source, it cannot proceed.
Population trends reinforce the urgency. Barangay 66-Banquerohan, formerly Barangay 43, saw its population jump from 6,976 in 2015 to 8,239 in 2020—accounting for 3.93% of Legazpi’s population. Nearby Barangay 61-Maslog (formerly Barangay 58) also grew from 4,796 to 5,268 during the same period. Source: PhilAtlas With this growth comes increased pressure on water infrastructure already struggling to meet demand.
Recognizing the risk, local authorities have mandated that any new development—especially one of this scale—must include a concrete, technically sound plan for water sustainability. In response, the private company behind the housing project commissioned a geo-resistivity survey to identify potential groundwater sources and assess site viability.
Until a long-term, dependable water supply is secured, the future of this major housing initiative—and the broader promise of sustainable growth in Legazpi—remains uncertain.
Our team led by Engr. Kristian with a decade of experience on the field and technical specialization went to the location. Using advanced geo-resistivity technology, our team surveyed the rugged terrain to locate potential groundwater sources. Despite challenges such as a low-yielding aquifer and limited survey space, we remained focused on uncovering viable water reserves.
Using the survey data, we identified several feasible sites, each holding the potential to provide much-needed relief to the area. The georesistivity report also includes the accurate well design that contains the information about the exact location, aquifer depth, well depth, estimated yield, and cost of construction of the project. We never give up on this task and provide detailed data to help the clients determine a feasible location for a deep well. These findings are now undergoing further analysis to determine water quantity and quality, bringing hope for a long-term solution to the community’s water needs.
Key Insights
Low-Yielding Aquifer: Previous studies indicated minimal water availability, making this discovery crucial.
Data Scarcity: With little prior research, our team explored largely uncharted territory.
Survey Challenges: Limited space required strategic and innovative survey methods.
Growing Demand: The increasing water needs of the community emphasized the urgency of our work.
Innovative Solutions: Advanced survey tools helped overcome geological and spatial limitations.
As we continue to explore and innovate, we invite you to follow our progress and share your thoughts. How can we further refine our methods? What other regions could benefit from similar surveys? Let's collaborate to ensure a sustainable water future for all. If you need any further modifications or additional information, feel free to let me know.
