S.L. 549.14 Art. 3Limit values for mercury discharges. S.L. 549.10 S.L. 549.10

(1) The limit values, the time limits by which they shall be complied with and the monitoring procedure for discharges are laid down in Annex I. THE CHLOR-ALKALI ELECTROLYSIS INDUSTRY

(2) The authorizations referred to in regulation 4 of the Pollution Caused by Certain Dangerous Substances Discharged into the Aquatic Environment Regulations shall contain provisions at least as stringent as those in Annex I to these regulations, except in cases where the competent authority is complying with regulation 7(3) of the Pollution Caused by Certain Dangerous Substances Discharged into the Aquatic Environment Regulations, on the basis of Annex IV to these regulations. The authorizations shall be reviewed at least every four years.

(3) Without prejudice to their obligations arising out of subregulations (1) and (2) and of the provisions of the Pollution Caused by Certain Dangerous Substances Discharged into the Aquatic Environment Regulations, the competent authority may grant a licence for new plants only if such a licence contains a reference to the standards corresponding to the best technical means available for preventing discharges of mercury.

(4) The competent authority shall use or order the use of the reference method of analysis for determining the presence of mercury as given in Annex III.1 to these regulations. The competent authority may where appropriate use or allow the use of other methods, provided that the limits of detection, precision and accuracy of such methods shall be at least as good as those laid down in Annex III.I to these regulations. The accuracy required in the measurement of eflluent flow shall be that given in Annex III.2 to these regulations.