Voluntary programs for compliance with the quality of wastewater discharges
December 2022 | Printed version
- New parameters requiring wastewater to be of a higher quality will come into force in March 2023.
- The guidelines establish the possibility for those who discharge wastewater to propose to CONAGUA by April 3, 2023, a compliance program with concrete actions to improve the quality of wastewater.
- Anyone who does not submit this program will have to ensure that their downloads comply with the new parameters starting April 3, 2023.
In March 2022, the Mexican Official Standard NOM-001-SEMARNAT-2021 (NOM) was published, which establishes the permissible limits of pollutants in wastewater discharges into receiving bodies owned by the nation. It establishes new limits and stricter conditions that must be met by wastewater discharges into rivers, lakes and the subsoil, granting one year for those who carry out such discharges (the “Obligated Subjects”) to adapt their processes to ensure that they will comply with the NOM.
To facilitate compliance with the NOM for Obligated Subjects, the Guidelines establishing the general administrative provisions for the presentation of compliance programs established in the fourth transitory article of the NOM (the "Guidelines") were published on December 5, 2022.
GUIDELINES FOR COMPLIANCE WITH THE NOM
The Guidelines establish that Obligated Subjects that must modify their facilities and/or change their production processes may submit to the National Water Commission (CONAGUA) a compliance program in which actions, conditions and goals are established so that their discharges comply with the NOM, giving a maximum deadline of March 11, 2027.
The submission of compliance programs is voluntary, and can be done from March 11 and
there is April 3 of 2023.
Those who choose not to submit the program must ensure that their downloads comply with NOM guidelines as of April 3, 2023.
If CONAGUA finds that the Obligated Subjects do not comply with the commitments established in the program, the Commission will proceed to cancel the program. In this case, the Obligated Subject must immediately comply with the NOM.
Failure to comply with the parameters established in the NOM would be equivalent to discharging contaminated water, which would give rise to administrative, environmental, civil and criminal liabilities.
WHAT DO WE RECOMMEND?
First, verify the obligations arising from the discharge permit, ensure that the treatment plant is in optimal conditions, and that discharge analyses and declarations are periodically carried out before CONAGUA, ensuring that current discharge conditions are met.
Subsequently, check with the analysis of the current wastewater and with the technical opinion of experts, whether or not the current discharge complies with the parameters established in the NOM. If the current discharges do not comply with the requirements of the NOM, it is advisable to formulate the compliance program referred to in the Guidelines and submit it to CONAGUA within the corresponding period.
Finally, we recommend legal and technical support to ensure proper compliance with the NOM, as well as the National Water Law.
To consult the original publication in the DOF, visit: https://www.dof.gob.mx/nota_detalle.php?codigo=5673265&fecha=05/12/2022#gsc.tab=0











