The water analysis of the City Drainage Outfall shows that waste water is within tolerable standards. However, the laboratory findings apparently left out a very critical component in establishing water quality, which is the level of coliforms. Likewise, the seawater fronting the City Port has not been classified by Department of Environmental and Nature Resources (DENR) thus most lab test would yield a tolerance level.
The progress report of the DENR water sampling taken before and after the Tagbilaran drainage outfall was opened was relayed to Gov. Erico Aumentado last Saturday but copies of which was only released yesterday.
Despite the laboratory findings, Provincial environment and natural resources officer (PENRO) Nestor Canda recommended that the Tagbilaran sea waters be classified in accordance with DENR Administrative Order (DAO) 34 Series of 1990.
Under DAO 34-1990, the water quality criteria in testing for contributing pollutants lists some 16 parameters. The DENR laboratory test obtained included only five – which is determining the pH level (range), temperature (maximum rise in degree Celsius), dissolved oxygen (mg/liter), biochemical oxygen demand (mg/liter) and total suspended solids (mg/liter).
