Water Quality

At CMPC, we depend on water resources. For this reason, after use, we return the water in conditions similar to extraction. For this purpose, we measure the quality of all industrial effluents, complying with the regulations on discharge parameters and publicly disclosing measurements of relevant parameters such as Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD), Total Suspended Solids (TSS) and Absorbable Halogenated Organic Compounds (AOx). The latter is in the case of pulp plants.

Pollutant Loads

2018 2019 2020 2021
DQO (t) 41,799 35,699 39,014 30,557
DBO (t) 5,024 3,578 2,562 1,655
AOx* (t) 389 400 444 380
SST (t) 4,833 2,958 2,981 2,135
* AOX are compounds generated by the Pulp plants (Santa Fe, Pacifico Guaiba, and Laja). Each of these plants has an internal annual intensity target for the discharge of this compound, which is more stringent than the applicable local regulations and is progressively updated and increasingly ambitious.