Permits for discharging liquid effluents within programs of remediation of underground waters

By means of the Resolution Nº 335/2008, the Water Authority established the limits for discharging organic volatile substances, in order to preserve water sources and taking into consideration the multiple processes of cleaning and water remediation that are performed in the Province of Buenos Aires. The referred limits are established according to indicators of the levels of toxicity by gas/steam and explosiveness found in inspections of discharges established by the U.S. Environmental Protection Agency in the “Guidance to Protect Workers of Public Treatment Plants (POWTS) from Toxic and Reactive Gases and Vapors.”

In addition, the Resolution establishes that, in case a source of water is considered polluted, the responsible party must carry out the necessary activities to remediate the environment in the terms established by the Water Authority. To this end, the referred party needs to file the “Guide of requirement for the filing of Hydrogeological study and Projects of Remediation of underground waters” and, at the same time, initiate the proceedings to request a precarious permit for discharging liquid effluents within programs of remediation for underground waters.

The proceeding for the granting of the referred permit starts with the filing of a Letter of Presentation and the technical documentation that fulfills the general requirements established by Resolution ADA 247/2008 of the Water Authority. In case the collector is the sewage system, the petitioner must file a discharge feasibility certificate granted by the Sanitary Services Company; whereas, if the discharge product of the remediation process is derived from a treatment plant, the petitioner must file modifications to the process of treatment previously communicated to the referred authority.

Finally, the permit for discharging liquid effluents within programs of remediation for underground waters is granted for a two-year period, with a possibility of renewal for the same term, once verified the discharge parameters and the existence of non-declared modifications of the program of recovery.

For further information on this topic please contact María Morena Del Río