The Department of Science and Technology (DOST), in partnership with the Ilocos Norte government and the communities around the lake, is offering a cost-effective solution for Paoay Lake’s E. coli problem. DOST Ilocos regional director Armando Ganal said in an interview Thursday a powder called Vigormin is the low-cost solution to reduce the coliform level due to wastewater, drainage systems, and residual solid waste accumulating in the lake during surface runoff. But instead of pouring the Vigormin powder directly to the 387-hectare lake, Ganal said this will be applied in the septic tanks of households surrounding the lake.

DOST assists in Paoay Lake E. coli cleanup. (2022, February 4). Manila Bulletin, p. 5.