Dasmariñas City, Cavite is surrounded by rivers and creeks that play an important role in community life. However, government monitoring shows that some waterways experience serious contamination, mainly due to untreated sewage, waste disposal, and urban runoff.
The Department of Environment and Natural Resources (DENR) through the Environmental Management Bureau (EMB) CALABARZON regularly monitors water quality.
Testing results show extremely high fecal coliform levels in some river stations near Dasmariñas, which indicates contamination from sewage and animal waste.
The Philippine standard for Class C waters is 200 MPN/100 mL, but some stations recorded levels reaching the millions, far above safe limits.
Learn more from the official DENR-EMB monitoring page:
Contaminated waterways can lead to health risks such as diarrhea, skin infections, and other waterborne illnesses. Protecting local water sources requires proper waste management, sanitation systems, and community participation.
In March 2025, DENR-EMB CALABARZON organized a cleanup drive along Batalon Creek in Barangay Langkaan II, Dasmariñas City.
The activity collected around 200 kg of solid waste, highlighting the ongoing pollution problem.
Official cleanup report:
Many rivers and creeks passing through populated barangays are affected due to:
domestic wastewater discharge
septic leaks
improper waste disposal
These waterways are often used for drainage and sometimes irrigation.
DENR monitoring tables include sampling points such as:
DLSU–Dasmariñas Bridge area
Nearby river systems connected to the Imus–Ylang-Ylang–Rio Grande watershed
A known example of local pollution impact is Batalon Creek in Barangay Langkaan II.
In 2025, DENR conducted a cleanup drive here, collecting about 200 kg of waste, showing how solid waste contributes to contamination.
Communities near rivers are more vulnerable during floods because contaminated water can spread into:
streets and homes
shallow wells
local drainage systems
Build more sewage treatment facilities
Require proper septic system maintenance
Enforce wastewater regulations
Expand DENR testing stations in Dasmariñas
Publish results for public awareness
Prevent illegal dumping
Improve garbage collection near waterways
Avoid throwing trash into canals or rivers
Segregate biodegradable and plastic waste
Activities like the DENR Batalon Creek cleanup help reduce pollution.
Schools and barangays can promote:
clean water education
sanitation practices
reporting pollution incidents
Do not use river or creek water for:
bathing
washing food
drinking
boil water if unsure
install household filtration systems
Residents may report concerns to:
DENR–EMB CALABARZON
City Environment Office
Local Water District
