For Negros Occidental, water security can no longer be treated primarily as an agricultural concern. It must increasingly be viewed as a household, public-health and disaster-resilience imperative.
The province may receive abundant rainfall during certain months, yet communities can still experience water shortages during prolonged dry spells. This apparent contradiction is becoming more significant as extreme weather patterns disrupt the traditional rhythm of wet and dry seasons. The threat of El Niño makes the situation even more urgent.
The fundamental question is not simply whether Negros Occidental has enough water. It is whether we have enough safe water, stored in the right places, available when households need it most.
This concern becomes more complicated because Negros Occidental lives under the shadow of Mt. Kanlaon.
Periodic volcanic activity and ashfall can affect surface-water sources. When ash settles on watersheds, streams, rivers, reservoirs and other exposed water sources, communities dependent on these sources may face interruptions or water-quality problems.
During such events, having alternative and protected sources of household water can mean the difference between inconvenience and a genuine humanitarian problem.
Fortunately, Negros Occidental does not have to start from zero. The provincial government already has a Provincial Integrated Water Security Program, whose stated objectives include increasing access to safe water and sanitation while promoting sustainable management of water resources.
What is needed now is to intensify that approach and make household water security its central resilience objective.
First: Harvest the rain where it falls.
Every household, school, barangay hall, church, public market and government building should be encouraged to install rainwater-harvesting systems.
Rainwater falling on rooftops is a resource that is often immediately discarded into drainage canals. Gutters, first-flush devices, storage tanks and appropriate filtration systems can transform this runoff into a strategic reserve.
Not every harvested drop has to be drinking water. Properly designed systems can provide water for toilet flushing, cleaning, gardening, laundry and other non-potable household requirements, thereby reducing pressure on potable supplies.
For drinking purposes, however, harvested rainwater must undergo appropriate treatment and quality monitoring. This distinction is particularly important following volcanic ashfall, when roofs and catchment surfaces may themselves become contaminated.
The national government already recognizes rainwater harvesting as an important response to water scarcity and changing rainfall patterns.
Second: Build small water impounding systems — but think beyond agriculture.
Small Water Impounding Projects, or SWIPs, should not be regarded exclusively as irrigation infrastructure.
The Department of Agriculture’s Bureau of Soils and Water Management describes a SWIP as a structure constructed across a narrow depression or valley to store rainfall and runoff for present or future use.
For Negros Occidental, appropriately located small impounding systems could form part of a broader community water-security network — particularly in upland and water-stressed communities.
They can capture excess wet-season runoff, reduce rapid downstream flows and retain water that might otherwise be lost. Properly designed systems can also contribute to groundwater recharge and ecosystem resilience.
But such projects must be site-specific, engineered properly and accompanied by watershed protection. A reservoir without a protected watershed can eventually become a sediment trap rather than a dependable water source.
Third: Create barangay-level water reserves.
Every vulnerable barangay should know: Where will our water come from if the main source fails for seven, fourteen or thirty days?
That question should become part of local disaster-risk planning.
Strategic communal tanks, elevated storage, protected springs, backup wells where sustainable and legally permitted, mobile purification equipment and emergency water distribution points should be mapped before — not after — a drought, volcanic event or other disaster.
The recently issued national framework on water-supply projects is particularly relevant. It specifically identifies alternative water sources, water tanks, rainwater-harvesting facilities, small water impounding systems, filtration systems and spring development among interventions for improving domestic and municipal water supply.
Fourth: Protect the watersheds.
Water security begins upstream.
Reforestation, forest protection, spring protection, erosion control and rehabilitation of degraded watersheds should therefore be considered investments in household water security—not merely environmental programs.
The province should map its critical watersheds and water sources and identify which communities depend upon each one. This should be complemented by regular water-quality monitoring, particularly after heavy rainfall, drought and Kanlaon-related ashfall.
Finally: Establish a Negros Occidental Water Security Master Plan.
The province needs a long-term, science-based plan that integrates the provincial government, municipalities and cities, barangays, water districts, DENR, DA, DPWH, NDRRMC, academe, civil society and private sector.
The objective should be simple:
No Negrense household should be left without access to safe water because of El Niño, extreme weather or volcanic disruption.
Agriculture will benefit from a water-secure province. But the first priority must be the household—the mother preparing food, the child needing clean water, the elderly person requiring hydration, and every family that expects its community water system to function even when nature does not cooperate.
Negros Occidental cannot control when El Niño arrives or when Mt. Kanlaon becomes active. But we can decide whether we will be prepared.
The province should, therefore, move from a culture of water response to one of water preparedness.
Rainwater harvesting, small water impounding systems, protected watersheds, communal storage and diversified water sources are not simply infrastructure projects. They are investments in the province’s resilience—and ultimately, in the security and dignity of every Negrense family. | NWI
The columnist is the Philippine Country Representative of Water Mission, a U.S.-based global engineering nonprofit headquartered in Charleston, South Carolina. In the aftermath of Super Typhoon Yolanda (Haiyan) in 2013, he helped facilitate the distribution and deployment of water treatment processors valued at approximately P500 million to disaster-stricken communities across the Visayas.
