Convention on the Protection and Use of Transboundary Watercourses and International Lakes:Annex III Guidelines for developing water-quality objectives and criteria

Convention on the Protection and Use of Transboundary Watercourses and International Lakes

Annex III Guidelines for developing water-quality objectives and criteria

Geldend

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Water-quality objectives and criteria shall:

a)

Take into account the aim of maintaining and, where necessary, improving the existing water quality;

b)

Aim at the reduction of average pollution loads (in particular hazardous substances) to a certain degree within a certain period of time;

c)

Take into account specific water-quality requirements (raw water for drinking-water purposes, irrigation, etc.);

d)

Take into account specific requirements regarding sensitive and specially protected waters and their environment, e.g. lakes and groundwater resources;

e)

Be based on the application of ecological classification methods and chemical indices for the medium- and long-term review of water-quality maintenance and improvement;

f)

Take into account the degree to which objectives are reached and the additional protective measures, based on emission limits, which may be required in individual cases.

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