THE OIL-LIKE waste that recently covered some 300 meters of the Iloilo River near Esplanade 4 must not be dismissed as an isolated case of improper grease disposal. It is a warning that decades of painstaking rehabilitation can be undone when businesses neglect their environmental obligations and authorities allow enforcement to weaken.
The Iloilo River was not always the thriving ecological and recreational asset that Ilonggos enjoy today. From the 1980s up to the early 2000s, it was choked by informal settlements, fish pens and untreated wastewater. Pollution had turned the waterway into an environmental and public health hazard.
Its remarkable revival did not happen by accident. It took years of political will, sustained cleanup campaigns, strict regulation and cooperation among government agencies, businesses and communities. The result is a rehabilitated river with improved water quality and thriving fish populations, complemented by the 9.29-kilometer Iloilo River Esplanade. The river has become a symbol of Iloilo City’s capacity to reclaim and protect its natural heritage.
That achievement, however, is neither permanent nor immune to neglect.
City government personnel found grease-like waste in the river. Initial findings suggested that the contaminant may have been discharged into the city’s drainage system after declogging operations. Residents also reported that tilapia caught in the river smelled like cooking oil.
These details should raise alarm.
The city government’s decision to inspect the grease traps and sewage-treatment facilities of hotels and restaurants near Diversion Road is therefore necessary. But the investigation must not become another exercise that begins with public concern and ends without a clear finding.
Authorities must identify the source, disclose the results and impose the appropriate penalties if violations are established. No establishment — regardless of its size, influence or economic contribution — should be permitted to use the city’s drainage network as a convenient disposal system.
Restaurants are required to install and maintain grease traps precisely because cooking oil and grease can solidify, clog drainage lines and eventually reach rivers. Compliance cannot mean merely having a grease trap on the premises. The equipment must be functional, regularly cleaned and supported by responsible waste collection and disposal.
The incident also exposes the weakness of reactive enforcement. Inspections should not take place only after pollution becomes visible. Hotels, restaurants and other establishments that generate substantial wastewater must undergo regular and, when warranted, unannounced inspections. Wastewater discharge points should be mapped and monitored, while establishments must maintain verifiable records of grease-trap cleaning and waste disposal.
The Iloilo River’s revival is among the city’s proudest environmental achievements. Yet pride without vigilance can quickly turn into complacency. The river did not recover overnight, but it can deteriorate gradually — one illegal discharge, one clogged drainage line and one ignored violation at a time.
Protecting it is not solely the government’s responsibility. Businesses that benefit from Iloilo City’s development must ensure that their profits do not come at the river’s expense. Residents, too, must remain watchful and immediately report suspicious discharges or changes in the water.
Iloilo City must act decisively before an isolated incident becomes a pattern and before the river’s hard-won revival begins to flow backward.
The Iloilo River was given a second life. It must never be forced to fight for a third.
