Taguig / Mandaluyong City / Pasig / Marikina / Las Piñas City / Departments Caloocan City / Taguig City / Pateros / Pasay City / Parañaque City / Malabon City / Mandaluyong / Valenzuela City / Quezon City / San Juan / Pasig City / /
Company
Regulatory Office Environmental Management Bureau Manila Water Company Inc. / Maynilad Water Services Inc. / / /
Facility
Public Health Laboratory / /
Organization
Metro Manila Drinking Water Quality Monitoring Committee / LGU Water Laboratories Manila Health Department / /
Person
IRMA L. ASUNCION / VI OIC / Metro Manila / Metro Manila Drinking / / /