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Personal and vehicle radiation monitoring equipment should be installed at exit points. — The store design should take adequate account of the risk of accidents of both internal or external origin, such as flooding, gales or other severe weather, depending on the location. 2. Additional design features for liquid waste storage Collection and storage of radioactive liquid waste should involve the use of approved containers for small quantities of liquid waste and tanks for larger amounts, with provision made for: — Operational control, — Collection and interim storage before treatment of a batch, — Activity decay storage, — Monitoring.

There may be several different options for managing a waste stream, each of them involving some discharge to the environment, for example direct discharge, discharge after treatment and discharge after storage. Some of the options initially considered may be discarded for non-radiation protection reasons, for example on grounds of cost or for operational reasons, or for the control of other chemical or biological hazards. Once an agreement has been reached as to the suitability of a proposed waste treatment scheme, a discharge authorization should be provided by the national authority to the waste producer; this should detail the specific requirements to be met at the point of discharge in terms of: — The maximum permissible radioactivity concentration in the effluent; — The flow rate of the effluent and total volume; — The daily, monthly and/or yearly radioactivity discharge levels both for total activity and for individual or groups of radionuclides.

The values of the dose constraint should be set by national authorities. There may be several different options for managing a waste stream, each of them involving some discharge to the environment, for example direct discharge, discharge after treatment and discharge after storage. Some of the options initially considered may be discarded for non-radiation protection reasons, for example on grounds of cost or for operational reasons, or for the control of other chemical or biological hazards. Once an agreement has been reached as to the suitability of a proposed waste treatment scheme, a discharge authorization should be provided by the national authority to the waste producer; this should detail the specific requirements to be met at the point of discharge in terms of: — The maximum permissible radioactivity concentration in the effluent; — The flow rate of the effluent and total volume; — The daily, monthly and/or yearly radioactivity discharge levels both for total activity and for individual or groups of radionuclides.

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