BANAYBANAY, Davao Oriental — Unusually muddy and orange-colored floodwaters coursing through parts of Banaybanay, Davao Oriental, have triggered concern among residents and prompted the municipal government to seek an immediate technical investigation into possible links between the flooding and mining activities in the area.
A photograph shared on Facebook by Mary Grace Alcebar on August 7 showed what appeared to be a large, thick mass of muddy floodwater flowing through the Causwagan River in Banaybanay following heavy rainfall and flooding.
Residents raised concerns that the unusual color and heavy sedimentation of the floodwaters could be connected to mining activities upstream. However, no official finding has yet established that mining operations caused the muddy or orange-colored floodwaters.
The concern has now reached the municipal government, with Banaybanay Mayor Lemuel Ian M. Larcia ordering an immediate ocular inspection of mining areas and formally requesting the Mines and Geosciences Bureau (MGB) Region XI to investigate and assess mining operations in the municipality.
Mayor orders inspection of mining areas
On August 7, Larcia issued a Memorandum Order directing an ocular inspection of mining areas operated by ARC Nickel Resources, Inc. (ANRI) in Barangay Pintatagan and ZETOZA in Barangay Mahayag.
The move came after the municipality experienced heavy rainfall and flooding, with floodwaters flowing from river systems in Barangays Causwagan and Maputi toward downstream communities reportedly becoming unusually muddy and orange in color.
The municipal government said the inspection is intended to determine the actual condition of the mining areas and identify whether there are environmental factors that may have contributed to the unusual condition of the floodwaters.
More importantly, the LGU wants the investigation to establish whether the mining operations have any possible connection to the recent flooding, particularly through runoff, sedimentation or other environmental impacts.
LGU seeks MGB technical assessment
In a formal letter dated August 7 and addressed to MGB Region XI Regional Director Beverly Mae M. Brebante, Larcia specifically requested an ocular inspection and appropriate assessment of ANRI’s mining operations in Barangay Pintatagan and the mining area identified by the municipality in Barangay Mahayag.
The mayor said the request was prompted by the recent heavy rainfall and flooding in Banaybanay, during which floodwaters from river systems in Causwagan and Maputi reportedly carried an unusually high amount of mud and exhibited an orange coloration as they moved toward downstream communities.
The LGU said the condition raised questions about possible runoff, sedimentation and other environmental impacts associated with mining activities.
Rather than relying solely on observations or allegations circulating among residents, the municipal government is asking the MGB to conduct an on-site technical assessment to determine the actual cause of the unusual turbidity and coloration.
The MGB is also being asked to determine whether mining operations may have contributed to the condition of the floodwaters.
Compliance with environmental and safety standards under scrutiny
The requested inspection is also expected to examine whether the mining operations are complying with applicable laws, environmental standards and safety requirements.
This could include assessing drainage and runoff pathways, sediment control measures, the condition of disturbed areas, waterways potentially receiving runoff, and other factors that could affect downstream communities during periods of intense rainfall.
The LGU is also seeking formal findings and recommendations from the MGB that could serve as the basis for appropriate action by the municipal government and other concerned authorities.
The move is significant because establishing the source of the sediment and unusual coloration requires technical examination of the entire watershed rather than simply attributing the condition to a single activity based on appearance alone.
Residents demand answers as muddy waters flow downstream
For residents living near waterways and downstream communities, the incident has heightened concerns about the potential environmental consequences of activities in upstream areas.
The sight of heavily sedimented, orange-colored water flowing through the river system has raised questions about what is being carried downstream during heavy rains and whether communities located along waterways could face increased risks.
The concern is particularly serious during periods of intense rainfall, when large volumes of water can rapidly move sediment and runoff from elevated and disturbed areas toward rivers and low-lying communities.
While residents have pointed to mining as a possible explanation, authorities have yet to establish a direct causal connection.
That determination will now depend on the findings of the requested inspection and assessment.
LGU: Safety and environment remain priority
Larcia’s administration said the municipal government remains on alert and is closely monitoring the situation to protect residents, the environment and the welfare of affected communities.
The immediate inspection and request for MGB intervention signal the LGU’s effort to have the concerns subjected to a formal government and technical assessment instead of allowing the issue to remain based solely on public speculation.
For Banaybanay, the investigation could provide critical answers: What caused the unusual orange and muddy floodwaters? How much sediment entered the river system? Did the rainfall alone account for the condition, or did activities in upstream areas contribute to it? And if mining operations played a role, were proper environmental safeguards in place?
Those questions remain unresolved.
The municipal government is now awaiting the MGB’s response and technical findings, which could determine whether further regulatory, environmental or safety measures will be necessary in the affected mining areas.
Until then, the muddy waters of the Causwagan River remain not only a striking image of the recent flooding but also a growing environmental concern that authorities say must be investigated through evidence, field inspection and scientific assessment.