DENR National Capital Region through its South Field Office (SFO), organized a cleanup activity on a portion of Parañaque River in Barangay Tambo, Parañaque City on Thursday, 28 October 2021. The City Environment and Natural Resources Office (CENRO) of Parañaque, as well as volunteers from SM Prime and Barangay Tambo, participated in the activity which resulted in the recovery of 6.5 tons of mixed wastes from the river banks.

DENR National Capital Region is leading efforts to clean and rehabilitate rivers and esteros of Metro Manila in support of the Manila Bay Rehabilitation Program.