Current Status of Quarry Operations in Montalban, Rizal

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Montalban, officially known as Rodriguez, in Rizal province, has long been a focal point for quarrying activities. These operations have raised environmental and social concerns among local communities and authorities.

Environmental and Social Impacts

Quarrying in Montalban has been linked to several environmental issues, including deforestation, habitat destruction, and increased susceptibility to flooding. Notably, during Typhoon Ulysses in 2020, extensive flooding in Marikina and nearby areas was attributed to the degradation of the Marikina Watershed, exacerbated by quarrying activities. In response, the Department of Environment and Natural Resources (DENR) suspended the operations of 11 quarry and crushing plant companies in Rizal to assess their environmental compliance. 

In September 2024, concerns were raised regarding the impact of quarrying on an Islamic burial site in Rodriguez, Rizal. This prompted Senator Robin Padilla to initiate an investigation into the effects of quarrying and landfill operations on sacred sites and the environment. 

Companies Involved in Quarrying Operations

Several companies have been identified as operating quarrying activities in Montalban, Rizal. These include:

Big Rock Aggregates Corporation: Engaged in producing and supplying high-quality stone aggregates while practicing responsible mining. 

J. C. Rodriguez Construction Corporation

Montalban Millex Aggregates Corporation: Committed to responsible mining practices, emphasizing being pro-people and pro-environment. 

Solid Integrated Co. Incorporated: Listed among the companies operating in Rodriguez, Rizal. 

Government Actions and Community Responses

In December 2020, the DENR formed composite teams to investigate quarry operations in Rizal following massive flooding that affected parts of the province and Marikina City. 

By February 2021, the Mines and Geosciences Bureau (MGB) lifted the temporary suspension of several quarries and crushing plants in Rizal province, stating that flooding, erosion, and siltation would occur within the Marikina River Basin with or without mining operations. 

Despite these developments, local communities and environmental groups continue to advocate for the cessation of mining and quarrying projects in Rizal province, citing these activities as primary causes of environmental degradation and increased flooding risks. 

Conclusion

The quarrying operations in Montalban, Rizal, present a complex challenge that requires balancing economic interests with environmental preservation and respect for cultural sites. Ongoing monitoring, transparent investigations, and active community engagement are essential to address the multifaceted impacts of these activities.

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