EMB Central Office Laboratory, DENR Compound,

Visayas Avenue, Diliman. Quezon City 1116

(02) 8539 – 4378 loc. 137

(02) 8426 – 4332; (02) 8426 – 4339

erlsd@emb.gov.ph

FOR ELR CONCERNS: elr_secretariat@emb.gov.ph